Search Results for author: Hui Liu

Found 195 papers, 91 papers with code

Retrieval, Analogy, and Composition: A framework for Compositional Generalization in Image Captioning

no code implementations Findings (EMNLP) 2021 Zhan Shi, Hui Liu, Martin Renqiang Min, Christopher Malon, Li Erran Li, Xiaodan Zhu

Image captioning systems are expected to have the ability to combine individual concepts when describing scenes with concept combinations that are not observed during training.

Image Captioning Retrieval

A Semantic Filter Based on Relations for Knowledge Graph Completion

no code implementations EMNLP 2021 Zongwei Liang, Junan Yang, Hui Liu, Keju Huang

experiments on the benchmark datasets show that the semantic filter based on relations can suppress the impact of other attribute dimensions and improve link prediction performance.

Attribute Knowledge Graph Embedding +2

Structural-Spectral Graph Convolution with Evidential Edge Learning for Hyperspectral Image Clustering

1 code implementation11 Jun 2025 Jianhan Qi, Yuheng Jia, Hui Liu, Junhui Hou

Hyperspectral image (HSI) clustering assigns similar pixels to the same class without any annotations, which is an important yet challenging task.

Clustering Contrastive Learning +4

SoK: Machine Unlearning for Large Language Models

no code implementations10 Jun 2025 Jie Ren, Yue Xing, Yingqian Cui, Charu C. Aggarwal, Hui Liu

Large language model (LLM) unlearning has become a critical topic in machine learning, aiming to eliminate the influence of specific training data or knowledge without retraining the model from scratch.

Large Language Model Machine Unlearning +1

Phenotypic Profile-Informed Generation of Drug-Like Molecules via Dual-Channel Variational Autoencoders

no code implementations1 Jun 2025 Hui Liu, Shiye Tian, Xuejun Liu

The de novo generation of drug-like molecules capable of inducing desirable phenotypic changes is receiving increasing attention.

Efficient Long CoT Reasoning in Small Language Models

no code implementations24 May 2025 Zhaoyang Wang, Jinqi Jiang, Tian Qiu, Hui Liu, Xianfeng Tang, Huaxiu Yao

Experimental results across a series of mathematical reasoning benchmarks demonstrate the effectiveness of the proposed method in distilling long CoT reasoning ability into SLMs which maintains the competitive performance but significantly reduces generating redundant reasoning steps.

Mathematical Reasoning valid

EcomScriptBench: A Multi-task Benchmark for E-commerce Script Planning via Step-wise Intention-Driven Product Association

no code implementations21 May 2025 Weiqi Wang, Limeng Cui, Xin Liu, Sreyashi Nag, Wenju Xu, Chen Luo, Sheikh Muhammad Sarwar, Yang Li, Hansu Gu, Hui Liu, Changlong Yu, Jiaxin Bai, Yifan Gao, Haiyang Zhang, Qi He, Shuiwang Ji, Yangqiu Song

We propose a novel framework that enables the scalable generation of product-enriched scripts by associating products with each step based on the semantic similarity between the actions and their purchase intentions.

Semantic Similarity Semantic Textual Similarity

Beyond Text: Unveiling Privacy Vulnerabilities in Multi-modal Retrieval-Augmented Generation

no code implementations20 May 2025 Jiankun Zhang, Shenglai Zeng, Jie Ren, Tianqi Zheng, Xianfeng Tang, Hui Liu, Yi Chang

Multimodal Retrieval-Augmented Generation (MRAG) systems enhance LMMs by integrating external multimodal databases, but introduce unexplored privacy vulnerabilities.

Privacy Preserving RAG +2

MORALISE: A Structured Benchmark for Moral Alignment in Visual Language Models

no code implementations20 May 2025 Xiao Lin, Zhining Liu, Ze Yang, Gaotang Li, Ruizhong Qiu, Shuke Wang, Hui Liu, Haotian Li, Sumit Keswani, Vishwa Pardeshi, Huijun Zhao, Wei Fan, Hanghang Tong

To overcome these limitations, we introduce MORALISE, a comprehensive benchmark for evaluating the moral alignment of vision-language models (VLMs) using diverse, expert-verified real-world data.

Autonomous Driving Multimodal Reasoning

Harnessing the Unseen: The Hidden Influence of Intrinsic Knowledge in Long-Context Language Models

no code implementations11 Apr 2025 Yu Fu, HAZ Sameen Shahgir, Hui Liu, Xianfeng Tang, Qi He, Yue Dong

Recent advances in long-context models (LCMs), designed to handle extremely long input contexts, primarily focus on utilizing external contextual information, often leaving the influence of large language models' intrinsic knowledge underexplored.

Retrieval

SFT or RL? An Early Investigation into Training R1-Like Reasoning Large Vision-Language Models

1 code implementation10 Apr 2025 Hardy Chen, Haoqin Tu, Fali Wang, Hui Liu, Xianfeng Tang, Xinya Du, Yuyin Zhou, Cihang Xie

This work revisits the dominant supervised fine-tuning (SFT) then reinforcement learning (RL) paradigm for training Large Vision-Language Models (LVLMs), and reveals a key finding: SFT can significantly undermine subsequent RL by inducing ``pseudo reasoning paths'' imitated from expert models.

Reinforcement Learning (RL) Visual Reasoning

ViLBench: A Suite for Vision-Language Process Reward Modeling

no code implementations26 Mar 2025 Haoqin Tu, Weitao Feng, Hardy Chen, Hui Liu, Xianfeng Tang, Cihang Xie

Process-supervised reward models serve as a fine-grained function that provides detailed step-wise feedback to model responses, facilitating effective selection of reasoning trajectories for complex tasks.

Enhancing Zero-Shot Image Recognition in Vision-Language Models through Human-like Concept Guidance

no code implementations20 Mar 2025 Hui Liu, Wenya Wang, Kecheng Chen, Jie Liu, Yibing Liu, Tiexin Qin, Peisong He, Xinghao Jiang, Haoliang Li

In zero-shot image recognition tasks, humans demonstrate remarkable flexibility in classifying unseen categories by composing known simpler concepts.

Prompt Engineering Zero-shot Generalization

Cite Before You Speak: Enhancing Context-Response Grounding in E-commerce Conversational LLM-Agents

no code implementations5 Mar 2025 Jingying Zeng, Hui Liu, Zhenwei Dai, Xianfeng Tang, Chen Luo, Samarth Varshney, Zhen Li, Qi He

With the advancement of conversational large language models (LLMs), several LLM-based Conversational Shopping Agents (CSA) have been developed to help customers smooth their online shopping.

Attribute In-Context Learning +1

A Practical Memory Injection Attack against LLM Agents

no code implementations5 Mar 2025 Shen Dong, Shaocheng Xu, Pengfei He, Yige Li, Jiliang Tang, Tianming Liu, Hui Liu, Zhen Xiang

During the injection of the malicious record, we propose an indication prompt to guide the agent to autonomously generate our designed bridging steps.

SCSegamba: Lightweight Structure-Aware Vision Mamba for Crack Segmentation in Structures

1 code implementation CVPR 2025 Hui Liu, Chen Jia, Fan Shi, Xu Cheng, ShengYong Chen

The key insight of GBC lies in its effectiveness in modeling the morphological information of cracks, while the SASS enhances the perception of crack topology and texture by strengthening the continuity of semantic information between crack pixels.

Crack Segmentation Mamba +1

Unlocking Efficient, Scalable, and Continual Knowledge Editing with Basis-Level Representation Fine-Tuning

no code implementations1 Mar 2025 Tianci Liu, Ruirui Li, Yunzhe Qi, Hui Liu, Xianfeng Tang, Tianqi Zheng, Qingyu Yin, Monica Xiao Cheng, Jun Huan, Haoyu Wang, Jing Gao

In light of this, we explore the feasibility of representation fine-tuning, which applied some linear update to a few representations in a learned subspace, for knowledge editing.

knowledge editing

GenTool: Enhancing Tool Generalization in Language Models through Zero-to-One and Weak-to-Strong Simulation

no code implementations26 Feb 2025 Jie He, Jennifer Neville, Mengting Wan, Longqi Yang, Hui Liu, Xiaofeng Xu, Xia Song, Jeff Z. Pan, Pei Zhou

Large Language Models (LLMs) can enhance their capabilities as AI assistants by integrating external tools, allowing them to access a wider range of information.

How Far are LLMs from Real Search? A Comprehensive Study on Efficiency, Completeness, and Inherent Capabilities

no code implementations25 Feb 2025 Minhua Lin, Hui Liu, Xianfeng Tang, Jingying Zeng, Zhenwei Dai, Chen Luo, Zheng Li, Xiang Zhang, Qi He, Suhang Wang

Drawing inspiration from recent discussions on search and learning, we systematically explore the complementary relationship between search and Large Language Models (LLMs) from three perspectives.

Decision Making

A General Framework to Enhance Fine-tuning-based LLM Unlearning

1 code implementation25 Feb 2025 Jie Ren, Zhenwei Dai, Xianfeng Tang, Jingying Zeng, Zhen Li, Rahul Goutam, Suhang Wang, Yue Xing, Qi He, Hui Liu

Unlearning has been proposed to remove copyrighted and privacy-sensitive data from Large Language Models (LLMs).

Towards Context-Robust LLMs: A Gated Representation Fine-tuning Approach

no code implementations19 Feb 2025 Shenglai Zeng, Pengfei He, Kai Guo, Tianqi Zheng, Hanqing Lu, Yue Xing, Hui Liu

Specifically, context-robust LLMs should rely on external context only when lacking internal knowledge, identify contradictions between internal and external knowledge, and disregard unhelpful contexts.

RAG Retrieval-augmented Generation

Stepwise Perplexity-Guided Refinement for Efficient Chain-of-Thought Reasoning in Large Language Models

no code implementations18 Feb 2025 Yingqian Cui, Pengfei He, Jingying Zeng, Hui Liu, Xianfeng Tang, Zhenwei Dai, Yan Han, Chen Luo, Jing Huang, Zhen Li, Suhang Wang, Yue Xing, Jiliang Tang, Qi He

Chain-of-Thought (CoT) reasoning, which breaks down complex tasks into intermediate reasoning steps, has significantly enhanced the performance of large language models (LLMs) on challenging tasks.

Deep Learning-Based Identification of Inconsistent Method Names: How Far Are We?

no code implementations22 Jan 2025 Taiming Wang, Yuxia Zhang, Lin Jiang, Yi Tang, Guangjie Li, Hui Liu

However, these evaluations typically use a balanced dataset, where the number of inconsistent and consistent names are equal.

Contrastive Learning Retrieval

Computational Protein Science in the Era of Large Language Models (LLMs)

no code implementations17 Jan 2025 Wenqi Fan, Yi Zhou, Shijie Wang, Yuyao Yan, Hui Liu, Qian Zhao, Le Song, Qing Li

As a result, researchers have actively introduced LLM techniques in computational protein science, developing protein Language Models (pLMs) that skillfully grasp the foundational knowledge of proteins and can be effectively generalized to solve a diversity of sequence-structure-function reasoning problems.

Drug Discovery Protein Design +2

Reasoning with Graphs: Structuring Implicit Knowledge to Enhance LLMs Reasoning

no code implementations14 Jan 2025 Haoyu Han, Yaochen Xie, Xianfeng Tang, Sreyashi Nag, William Headden, Hui Liu, Yang Li, Chen Luo, Shuiwang Ji, Qi He, Jiliang Tang

This challenge is particularly pronounced in tasks involving multi-step processes, such as logical reasoning and multi-hop question answering, where understanding implicit relationships between entities and leveraging multi-hop connections in the given context are crucial.

Logical Reasoning Multi-hop Question Answering +1

Six-CD: Benchmarking Concept Removals for Text-to-image Diffusion Models

no code implementations CVPR 2025 Jie Ren, Kangrui Chen, Yingqian Cui, Shenglai Zeng, Hui Liu, Yue Xing, Jiliang Tang, Lingjuan Lyu

To address these gaps, we propose to benchmark the concept removal methods by introducing a new dataset, Six-CD, along with a novel evaluation metric.

Benchmarking

Q-PART: Quasi-Periodic Adaptive Regression with Test-time Training for Pediatric Left Ventricular Ejection Fraction Regression

no code implementations CVPR 2025 Jie Liu, Tiexin Qin, Hui Liu, Yilei Shi, Lichao Mou, Xiao Xiang Zhu, Shiqi Wang, Haoliang Li

During inference, our framework further employs a variance minimization strategy across image augmentations that simulate common quality issues in echocardiogram acquisition, along with differential adaptation rates for periodic and aperiodic components.

regression

Learning Cross-Domain Representations for Transferable Drug Perturbations on Single-Cell Transcriptional Responses

1 code implementation26 Dec 2024 Hui Liu, Shikai Jin

Given a pair of perturbed expression profiles, our approach decouples the perturbation representations from basal states through domain separation encoders and then cross-transfers them in the latent space.

Decoder Drug Discovery +1

Ask-Before-Detection: Identifying and Mitigating Conformity Bias in LLM-Powered Error Detector for Math Word Problem Solutions

no code implementations22 Dec 2024 Hang Li, Tianlong Xu, Kaiqi Yang, Yucheng Chu, Yanling Chen, Yichi Song, Qingsong Wen, Hui Liu

The rise of large language models (LLMs) offers new opportunities for automatic error detection in education, particularly for math word problems (MWPs).

GSM8K Math +1

Beyond Partisan Leaning: A Comparative Analysis of Political Bias in Large Language Models

no code implementations21 Dec 2024 Tai-Quan Peng, Kaiqi Yang, Sanguk Lee, Hang Li, Yucheng Chu, Yuping Lin, Hui Liu

As large language models (LLMs) become increasingly embedded in civic, educational, and political information environments, concerns about their potential political bias have grown.

World Knowledge

A Survey of Calibration Process for Black-Box LLMs

no code implementations17 Dec 2024 Liangru Xie, Hui Liu, Jingying Zeng, Xianfeng Tang, Yan Han, Chen Luo, Jing Huang, Zhen Li, Suhang Wang, Qi He

Black-Box LLMs, despite their superior performance, pose heightened requirements for calibration techniques due to their API-only interaction constraints.

Survey

Dynamic Prompt Allocation and Tuning for Continual Test-Time Adaptation

1 code implementation12 Dec 2024 Chaoran Cui, Yongrui Zhen, Shuai Gong, Chunyun Zhang, Hui Liu, Yilong Yin

For known domains, the corresponding domain-specific prompt is directly selected, while for previously unseen domains, a new prompt is allocated.

Test-time Adaptation

Mixed Blessing: Class-Wise Embedding guided Instance-Dependent Partial Label Learning

1 code implementation6 Dec 2024 Fuchao Yang, Jianhong Cheng, Hui Liu, Yongqiang Dong, Yuheng Jia, Junhui Hou

In partial label learning (PLL), every sample is associated with a candidate label set comprising the ground-truth label and several noisy labels.

Partial Label Learning

Towards Knowledge Checking in Retrieval-augmented Generation: A Representation Perspective

no code implementations21 Nov 2024 Shenglai Zeng, Jiankun Zhang, Bingheng Li, Yuping Lin, Tianqi Zheng, Dante Everaert, Hanqing Lu, Hui Liu, Yue Xing, Monica Xiao Cheng, Jiliang Tang

We conduct a comprehensive analysis of LLM representation behaviors and demonstrate the significance of using representations in knowledge checking.

RAG Retrieval +1

Large Language Models for Lossless Image Compression: Next-Pixel Prediction in Language Space is All You Need

no code implementations19 Nov 2024 Kecheng Chen, Pingping Zhang, Hui Liu, Jie Liu, Yibing Liu, Jiaxin Huang, Shiqi Wang, Hong Yan, Haoliang Li

We have recently witnessed that ``Intelligence" and `` Compression" are the two sides of the same coin, where the language large model (LLM) with unprecedented intelligence is a general-purpose lossless compressor for various data modalities.

All Attribute +1

Learning with Less: Knowledge Distillation from Large Language Models via Unlabeled Data

no code implementations12 Nov 2024 Juanhui Li, Sreyashi Nag, Hui Liu, Xianfeng Tang, Sheikh Sarwar, Limeng Cui, Hansu Gu, Suhang Wang, Qi He, Jiliang Tang

However, the large size and high computation demands of LLMs limit their practicality in many applications, especially when further fine-tuning is required.

Knowledge Distillation

HC$^3$L-Diff: Hybrid conditional latent diffusion with high frequency enhancement for CBCT-to-CT synthesis

no code implementations3 Nov 2024 Shi Yin, Hongqi Tan, Li Ming Chong, Haofeng Liu, Hui Liu, Kang Hao Lee, Jeffrey Kit Loong Tuan, Dean Ho, Yueming Jin

Methods and materials: We propose a novel hybrid conditional latent diffusion model for efficient and accurate CBCT-to-CT synthesis, named HC$^3$L-Diff.

Computational Efficiency Denoising

PrefPaint: Aligning Image Inpainting Diffusion Model with Human Preference

no code implementations29 Oct 2024 Kendong Liu, Zhiyu Zhu, Chuanhao Li, Hui Liu, Huanqiang Zeng, Junhui Hou

In this paper, we make the first attempt to align diffusion models for image inpainting with human aesthetic standards via a reinforcement learning framework, significantly improving the quality and visual appeal of inpainted images.

3D Reconstruction Image Inpainting +2

Irregular Tensor Low-Rank Representation for Hyperspectral Image Representation

1 code implementation24 Oct 2024 Bo Han, Yuheng Jia, Hui Liu, Junhui Hou

Spectral variations pose a common challenge in analyzing hyperspectral images (HSI).

Catastrophic Failure of LLM Unlearning via Quantization

1 code implementation21 Oct 2024 Zhiwei Zhang, Fali Wang, Xiaomin Li, Zongyu Wu, Xianfeng Tang, Hui Liu, Qi He, Wenpeng Yin, Suhang Wang

Machine unlearning has been introduced as a viable solution to remove the influence of such problematic content without the need for costly and time-consuming retraining.

Machine Unlearning Quantization

Exploring Social Desirability Response Bias in Large Language Models: Evidence from GPT-4 Simulations

no code implementations20 Oct 2024 Sanguk Lee, Kai-Qi Yang, Tai-Quan Peng, Ruth Heo, Hui Liu

Large language models (LLMs) are employed to simulate human-like responses in social surveys, yet it remains unclear if they develop biases like social desirability response (SDR) bias.

Divide-Verify-Refine: Aligning LLM Responses with Complex Instructions

no code implementations16 Oct 2024 Xianren Zhang, Xianfeng Tang, Hui Liu, Zongyu Wu, Qi He, Dongwon Lee, Suhang Wang

An alternative is to leverage LLMs' self-correction capabilities, allowing them to adjust responses to better meet specified constraints.

Towards the Effect of Examples on In-Context Learning: A Theoretical Case Study

no code implementations12 Oct 2024 Pengfei He, Yingqian Cui, Han Xu, Hui Liu, Makoto Yamada, Jiliang Tang, Yue Xing

To better understand how ICL integrates the examples with the knowledge learned by the LLM during pre-training (i. e., pre-training knowledge) and how the examples impact ICL, this paper conducts a theoretical study in binary classification tasks.

Binary Classification In-Context Learning

Learning Efficient and Effective Trajectories for Differential Equation-based Image Restoration

1 code implementation7 Oct 2024 Zhiyu Zhu, Jinhui Hou, Hui Liu, Huanqiang Zeng, Junhui Hou

The differential equation-based image restoration approach aims to establish learnable trajectories connecting high-quality images to a tractable distribution, e. g., low-quality images or a Gaussian distribution.

Image Restoration Navigate

A LLM-Powered Automatic Grading Framework with Human-Level Guidelines Optimization

no code implementations3 Oct 2024 Yucheng Chu, Hang Li, Kaiqi Yang, Harry Shomer, Hui Liu, Yasemin Copur-Gencturk, Jiliang Tang

Open-ended short-answer questions (SAGs) have been widely recognized as a powerful tool for providing deeper insights into learners' responses in the context of learning analytics (LA).

automatic short answer grading

TCDformer-based Momentum Transfer Model for Long-term Sports Prediction

no code implementations16 Sep 2024 Hui Liu, Jiacheng Gu, Xiyuan Huang, Junjie Shi, Tongtong Feng, Ning He

Then it decomposes the reconstructed time series with momentum transfer into trend and seasonal components.

Prediction Time Series

The Application of Machine Learning in Tidal Evolution Simulation of Star-Planet Systems

no code implementations29 Aug 2024 Shuaishuai Guo, Jianheng Guo, Kaifan Ji, Hui Liu, Lei Xing

We also extracted features of planetary migration states and utilized lightGBM to classify the samples into 6 categories for prediction.

Staircase Cascaded Fusion of Lightweight Local Pattern Recognition and Long-Range Dependencies for Structural Crack Segmentation

1 code implementation23 Aug 2024 Hui Liu, Chen Jia, Fan Shi, Xu Cheng, Mianzhao Wang, ShengYong Chen

The F1 and mIoU scores on the TUT dataset are 0. 8382 and 0. 8473, respectively, achieving state-of-the-art (SOTA) performance while requiring the least computational resources.

Crack Segmentation Segmentation

A Survey of Mamba

no code implementations2 Aug 2024 Haohao Qu, Liangbo Ning, Rui An, Wenqi Fan, Tyler Derr, Hui Liu, Xin Xu, Qing Li

In this survey, we therefore conduct an in-depth investigation of recent Mamba-associated studies, covering three main aspects: the advancements of Mamba-based models, the techniques of adapting Mamba to diverse data, and the applications where Mamba can excel.

Mamba State Space Models +1

tcrLM: a lightweight protein language model for predicting T cell receptor and epitope binding specificity

1 code implementation24 Jun 2024 Xing Fang, Chenpeng Yu, Shiye Tian, Hui Liu

These findings demonstrate the potential of tcrLM in predicting TCR-antigen binding specificity, with significant implications for advancing immunotherapy and personalized medicine.

Diversity Language Modeling +3

Six-CD: Benchmarking Concept Removals for Benign Text-to-image Diffusion Models

1 code implementation21 Jun 2024 Jie Ren, Kangrui Chen, Yingqian Cui, Shenglai Zeng, Hui Liu, Yue Xing, Jiliang Tang, Lingjuan Lyu

To address these gaps, we propose to benchmark the concept removal methods by introducing a new dataset, Six-CD, along with a novel evaluation metric.

Benchmarking

A Pure Transformer Pretraining Framework on Text-attributed Graphs

1 code implementation19 Jun 2024 Yu Song, Haitao Mao, Jiachen Xiao, Jingzhe Liu, Zhikai Chen, Wei Jin, Carl Yang, Jiliang Tang, Hui Liu

Pretraining plays a pivotal role in acquiring generalized knowledge from large-scale data, achieving remarkable successes as evidenced by large models in CV and NLP.

Link Prediction Node Classification

Towards Understanding Jailbreak Attacks in LLMs: A Representation Space Analysis

1 code implementation16 Jun 2024 Yuping Lin, Pengfei He, Han Xu, Yue Xing, Makoto Yamada, Hui Liu, Jiliang Tang

Large language models (LLMs) are susceptible to a type of attack known as jailbreaking, which misleads LLMs to output harmful contents.

Text-space Graph Foundation Models: Comprehensive Benchmarks and New Insights

1 code implementation15 Jun 2024 Zhikai Chen, Haitao Mao, Jingzhe Liu, Yu Song, Bingheng Li, Wei Jin, Bahare Fatemi, Anton Tsitsulin, Bryan Perozzi, Hui Liu, Jiliang Tang

First, the absence of a comprehensive benchmark with unified problem settings hinders a clear understanding of the comparative effectiveness and practical value of different text-space GFMs.

Unraveling the Mechanics of Learning-Based Demonstration Selection for In-Context Learning

no code implementations14 Jun 2024 Hui Liu, Wenya Wang, Hao Sun, Chris Xing Tian, Chenqi Kong, Xin Dong, Haoliang Li

Large Language Models (LLMs) have demonstrated impressive in-context learning (ICL) capabilities from few-shot demonstration exemplars.

In-Context Learning

Node-wise Filtering in Graph Neural Networks: A Mixture of Experts Approach

no code implementations5 Jun 2024 Haoyu Han, Juanhui Li, Wei Huang, Xianfeng Tang, Hanqing Lu, Chen Luo, Hui Liu, Jiliang Tang

Traditionally, GNNs employ a uniform global filter, typically a low-pass filter for homophilic graphs and a high-pass filter for heterophilic graphs.

Mixture-of-Experts Node Classification

UniOQA: A Unified Framework for Knowledge Graph Question Answering with Large Language Models

no code implementations4 Jun 2024 Zhuoyang Li, Liran Deng, Hui Liu, Qiaoqiao Liu, Junzhao Du

Concurrently, to augment overall accuracy in question answering, we further adapt the Retrieval-Augmented Generation (RAG) process to the knowledge graph.

Graph Question Answering Question Answering +3

NVS-Solver: Video Diffusion Model as Zero-Shot Novel View Synthesizer

1 code implementation24 May 2024 Meng You, Zhiyu Zhu, Hui Liu, Junhui Hou

By harnessing the potent generative capabilities of pre-trained large video diffusion models, we propose NVS-Solver, a new novel view synthesis (NVS) paradigm that operates \textit{without} the need for training.

Novel View Synthesis

Modeling Selective Feature Attention for Representation-based Siamese Text Matching

1 code implementation25 Apr 2024 Jianxiang Zang, Hui Liu

Representation-based Siamese networks have risen to popularity in lightweight text matching due to their low deployment and inference costs.

Text Matching

Graph Machine Learning in the Era of Large Language Models (LLMs)

no code implementations23 Apr 2024 Wenqi Fan, Shijie Wang, Jiani Huang, Zhikai Chen, Yu Song, Wenzhuo Tang, Haitao Mao, Hui Liu, Xiaorui Liu, Dawei Yin, Qing Li

Meanwhile, graphs, especially knowledge graphs, are rich in reliable factual knowledge, which can be utilized to enhance the reasoning capabilities of LLMs and potentially alleviate their limitations such as hallucinations and the lack of explainability.

Few-Shot Learning Knowledge Graphs +1

Explanation based Bias Decoupling Regularization for Natural Language Inference

no code implementations20 Apr 2024 Jianxiang Zang, Hui Liu

The robustness of Transformer-based Natural Language Inference encoders is frequently compromised as they tend to rely more on dataset biases than on the intended task-relevant features.

Natural Language Inference

RainyScape: Unsupervised Rainy Scene Reconstruction using Decoupled Neural Rendering

no code implementations17 Apr 2024 Xianqiang Lyu, Hui Liu, Junhui Hou

We propose RainyScape, an unsupervised framework for reconstructing clean scenes from a collection of multi-view rainy images.

Neural Rendering

A unified cross-attention model for predicting antigen binding specificity to both HLA and TCR molecules

1 code implementation8 Apr 2024 Chenpeng Yu, Xing Fang, Hui Liu

In this paper, we propose UnifyImmun, a unified cross-attention transformer model designed to simultaneously predict the bindings of peptides to both receptors, providing more comprehensive evaluation of antigen immunogenicity.

Specificity

Content Knowledge Identification with Multi-Agent Large Language Models (LLMs)

no code implementations22 Mar 2024 Kaiqi Yang, Yucheng Chu, Taylor Darwin, Ahreum Han, Hang Li, Hongzhi Wen, Yasemin Copur-Gencturk, Jiliang Tang, Hui Liu

Teachers' mathematical content knowledge (CK) is of vital importance and need in teacher professional development (PD) programs.

Diversity

SIFiD: Reassess Summary Factual Inconsistency Detection with LLM

no code implementations12 Mar 2024 Jiuding Yang, Hui Liu, Weidong Guo, Zhuwei Rao, Yu Xu, Di Niu

Ensuring factual consistency between the summary and the original document is paramount in summarization tasks.

Natural Language Inference Semantic Similarity +1

Towards generalization of drug response prediction to single cells and patients utilizing importance-aware multi-source domain transfer learning

1 code implementation8 Mar 2024 Hui Liu, Wei Duan, Judong Luo

The advancement of single-cell sequencing technology has promoted the generation of a large amount of single-cell transcriptional profiles, providing unprecedented opportunities to identify drug-resistant cell subpopulations within a tumor.

Domain Adaptation Drug Response Prediction +2

Towards Calibrated Deep Clustering Network

1 code implementation4 Mar 2024 Yuheng Jia, Jianhong Cheng, Hui Liu, Junhui Hou

Specifically, we propose a novel dual-head (calibration head and clustering head) deep clustering model that can effectively calibrate the estimated confidence and the actual accuracy.

Clustering Deep Clustering +1

Superpixel Graph Contrastive Clustering with Semantic-Invariant Augmentations for Hyperspectral Images

1 code implementation4 Mar 2024 Jianhan Qi, Yuheng Jia, Hui Liu, Junhui Hou

The state-of-the-art (SOTA) methods usually rely on superpixels, however, they do not fully utilize the spatial and spectral information in HSI 3-D structure, and their optimization targets are not clustering-oriented.

Clustering Contrastive Learning +1

Improving the JPEG-resistance of Adversarial Attacks on Face Recognition by Interpolation Smoothing

no code implementations26 Feb 2024 Kefu Guo, Fengfan Zhou, Hefei Ling, Ping Li, Hui Liu

JPEG compression can significantly impair the performance of adversarial face examples, which previous adversarial attacks on face recognition (FR) have not adequately addressed.

Adversarial Attack Face Recognition

Mixture of Link Predictors on Graphs

1 code implementation13 Feb 2024 Li Ma, Haoyu Han, Juanhui Li, Harry Shomer, Hui Liu, Xiaofeng Gao, Jiliang Tang

Link prediction, which aims to forecast unseen connections in graphs, is a fundamental task in graph machine learning.

Link Prediction Mixture-of-Experts +1

TELLER: A Trustworthy Framework for Explainable, Generalizable and Controllable Fake News Detection

1 code implementation12 Feb 2024 Hui Liu, Wenya Wang, Haoru Li, Haoliang Li

The proliferation of fake news has emerged as a severe societal problem, raising significant interest from industry and academia.

Decision Making Fake News Detection

Copyright Protection in Generative AI: A Technical Perspective

no code implementations4 Feb 2024 Jie Ren, Han Xu, Pengfei He, Yingqian Cui, Shenglai Zeng, Jiankun Zhang, Hongzhi Wen, Jiayuan Ding, Pei Huang, Lingjuan Lyu, Hui Liu, Yi Chang, Jiliang Tang

We examine from two distinct viewpoints: the copyrights pertaining to the source data held by the data owners and those of the generative models maintained by the model builders.

Code-Based English Models Surprising Performance on Chinese QA Pair Extraction Task

no code implementations16 Jan 2024 Linghan Zheng, Hui Liu, Xiaojun Lin, Jiayuan Dong, Yue Sheng, Gang Shi, Zhiwei Liu, Hongwei Chen

In previous studies, code-based models have consistently outperformed text-based models in reasoning-intensive scenarios.

RAG Retrieval +1

Robust Domain Misinformation Detection via Multi-modal Feature Alignment

1 code implementation24 Nov 2023 Hui Liu, Wenya Wang, Hao Sun, Anderson Rocha, Haoliang Li

We also propose a framework that simultaneously considers application scenarios of domain generalization (in which the target domain data is unavailable) and domain adaptation (in which unlabeled target domain data is available).

Domain Generalization Misinformation

Vision meets mmWave Radar: 3D Object Perception Benchmark for Autonomous Driving

no code implementations17 Nov 2023 Yizhou Wang, Jen-Hao Cheng, Jui-Te Huang, Sheng-Yao Kuan, Qiqian Fu, Chiming Ni, Shengyu Hao, Gaoang Wang, Guanbin Xing, Hui Liu, Jenq-Neng Hwang

This kind of radar format can enable machine learning models to generate more reliable object perception results after interacting and fusing the information or features between the camera and radar.

Autonomous Driving Sensor Fusion

Cross-domain feature disentanglement for interpretable modeling of tumor microenvironment impact on drug response

no code implementations15 Nov 2023 Jia Zhai, Hui Liu

This paper proposed a domain adaptation network for feature disentanglement to separate representations of cancer cells and TME of a tumor in patients.

Denoising Disentanglement +2

Global Structure-Aware Diffusion Process for Low-Light Image Enhancement

1 code implementation NeurIPS 2023 Jinhui Hou, Zhiyu Zhu, Junhui Hou, Hui Liu, Huanqiang Zeng, Hui Yuan

To harness the capabilities of diffusion models, we delve into this intricate process and advocate for the regularization of its inherent ODE-trajectory.

Low-Light Image Enhancement

Spectral-Aware Augmentation for Enhanced Graph Representation Learning

no code implementations20 Oct 2023 Kaiqi Yang, Haoyu Han, Wei Jin, Hui Liu

In this paper, we present GASSER, a model that applies tailored perturbations to specific frequencies of graph structures in the spectral domain, guided by spectral hints.

Contrastive Learning Graph Representation Learning

Efficient and Effective Deep Multi-view Subspace Clustering

no code implementations15 Oct 2023 Yuxiu Lin, Hui Liu, Ren Wang, Qiang Guo, Caiming Zhang

i) The parameter scale of the FC layer is quadratic to sample numbers, resulting in high time and memory costs that significantly degrade their feasibility in large-scale datasets.

Clustering Computational Efficiency +1

Label-free Node Classification on Graphs with Large Language Models (LLMS)

1 code implementation7 Oct 2023 Zhikai Chen, Haitao Mao, Hongzhi Wen, Haoyu Han, Wei Jin, Haiyang Zhang, Hui Liu, Jiliang Tang

In light of these observations, this work introduces a label-free node classification on graphs with LLMs pipeline, LLM-GNN.

Node Classification

On the Generalization of Training-based ChatGPT Detection Methods

1 code implementation2 Oct 2023 Han Xu, Jie Ren, Pengfei He, Shenglai Zeng, Yingqian Cui, Amy Liu, Hui Liu, Jiliang Tang

ChatGPT is one of the most popular language models which achieve amazing performance on various natural language tasks.

Federated Learning in Big Model Era: Domain-Specific Multimodal Large Models

no code implementations22 Aug 2023 Zengxiang Li, Zhaoxiang Hou, Hui Liu, Ying Wang, Tongzhi Li, Longfei Xie, Chao Shi, Chengyi Yang, Weishan Zhang, Zelei Liu, Liang Xu

Preliminary experiments show that enterprises can enhance and accumulate intelligent capabilities through multimodal model federated learning, thereby jointly creating an smart city model that provides high-quality intelligent services covering energy infrastructure safety, residential community security, and urban operation management.

Federated Learning Management

Improving Text Semantic Similarity Modeling through a 3D Siamese Network

no code implementations18 Jul 2023 Jianxiang Zang, Hui Liu

Siamese networks have gained popularity as a method for modeling text semantic similarity.

Navigate Semantic Similarity +1

TVPR: Text-to-Video Person Retrieval and a New Benchmark

no code implementations14 Jul 2023 Xu Zhang, Fan Ni, Guan-Nan Dong, Aichun Zhu, Jianhui Wu, Mingcheng Ni, Hui Liu

To the best of our knowledge, MFGF is the first successful attempt to use video for text-based person retrieval task and has achieved state-of-the-art performance on TVPReid dataset.

Person Retrieval Retrieval +3

Exploring the Potential of Large Language Models (LLMs) in Learning on Graphs

2 code implementations7 Jul 2023 Zhikai Chen, Haitao Mao, Hang Li, Wei Jin, Hongzhi Wen, Xiaochi Wei, Shuaiqiang Wang, Dawei Yin, Wenqi Fan, Hui Liu, Jiliang Tang

The most popular pipeline for learning on graphs with textual node attributes primarily relies on Graph Neural Networks (GNNs), and utilizes shallow text embedding as initial node representations, which has limitations in general knowledge and profound semantic understanding.

General Knowledge Node Classification

Empowering Molecule Discovery for Molecule-Caption Translation with Large Language Models: A ChatGPT Perspective

1 code implementation11 Jun 2023 Jiatong Li, Yunqing Liu, Wenqi Fan, Xiao-Yong Wei, Hui Liu, Jiliang Tang, Qing Li

In this work, we propose a novel LLM-based framework (MolReGPT) for molecule-caption translation, where an In-Context Few-Shot Molecule Learning paradigm is introduced to empower molecule discovery with LLMs like ChatGPT to perform their in-context learning capability without domain-specific pre-training and fine-tuning.

In-Context Learning Molecule Captioning +3

Do-GOOD: Towards Distribution Shift Evaluation for Pre-Trained Visual Document Understanding Models

1 code implementation5 Jun 2023 Jiabang He, Yi Hu, Lei Wang, Xing Xu, Ning Liu, Hui Liu, Heng Tao Shen

Results from the experiments demonstrate that there is a significant performance gap between the in-distribution (ID) and OOD settings for document images, and that fine-grained analysis of distribution shifts can reveal the brittle nature of existing pre-trained VDU models and OOD generalization algorithms.

document understanding Question Answering

DiffusionShield: A Watermark for Copyright Protection against Generative Diffusion Models

1 code implementation25 May 2023 Yingqian Cui, Jie Ren, Han Xu, Pengfei He, Hui Liu, Lichao Sun, Yue Xing, Jiliang Tang

By detecting the watermark from generated images, copyright infringement can be exposed with evidence.

Self-Explainable Graph Neural Networks for Link Prediction

no code implementations21 May 2023 Huaisheng Zhu, Dongsheng Luo, Xianfeng Tang, Junjie Xu, Hui Liu, Suhang Wang

Directly adopting existing post-hoc explainers for explaining link prediction is sub-optimal because: (i) post-hoc explainers usually adopt another strategy or model to explain a target model, which could misinterpret the target model; and (ii) GNN explainers for node classification identify crucial subgraphs around each node for the explanation; while for link prediction, one needs to explain the prediction for each pair of nodes based on graph structure and node attributes.

Link Prediction Node Classification +1

Interpretable Multimodal Misinformation Detection with Logic Reasoning

2 code implementations10 May 2023 Hui Liu, Wenya Wang, Haoliang Li

Multimodal misinformation on online social platforms is becoming a critical concern due to increasing credibility and easier dissemination brought by multimedia content, compared to traditional text-only information.

Misinformation

TCR: Short Video Title Generation and Cover Selection with Attention Refinement

no code implementations25 Apr 2023 Yakun Yu, Jiuding Yang, Weidong Guo, Hui Liu, Yu Xu, Di Niu

In this paper, we first collect and present a real-world dataset named Short Video Title Generation (SVTG) that contains videos with appealing titles and covers.

Video Captioning

Counterfactual Learning on Graphs: A Survey

1 code implementation3 Apr 2023 Zhimeng Guo, Teng Xiao, Zongyu Wu, Charu Aggarwal, Hui Liu, Suhang Wang

To facilitate the development of this promising direction, in this survey, we categorize and comprehensively review papers on graph counterfactual learning.

counterfactual Fairness +3

GOAL: A Challenging Knowledge-grounded Video Captioning Benchmark for Real-time Soccer Commentary Generation

1 code implementation26 Mar 2023 Ji Qi, Jifan Yu, Teng Tu, Kunyu Gao, Yifan Xu, Xinyu Guan, Xiaozhi Wang, Yuxiao Dong, Bin Xu, Lei Hou, Juanzi Li, Jie Tang, Weidong Guo, Hui Liu, Yu Xu

Despite the recent emergence of video captioning models, how to generate vivid, fine-grained video descriptions based on the background knowledge (i. e., long and informative commentary about the domain-specific scenes with appropriate reasoning) is still far from being solved, which however has great applications such as automatic sports narrative.

Video Captioning

ICL-D3IE: In-Context Learning with Diverse Demonstrations Updating for Document Information Extraction

1 code implementation ICCV 2023 Jiabang He, Lei Wang, Yi Hu, Ning Liu, Hui Liu, Xing Xu, Heng Tao Shen

To this end, we propose a simple but effective in-context learning framework called ICL-D3IE, which enables LLMs to perform DIE with different types of demonstration examples.

Document AI In-Context Learning

Models See Hallucinations: Evaluating the Factuality in Video Captioning

no code implementations6 Mar 2023 Hui Liu, Xiaojun Wan

In this work, we conduct a detailed human evaluation of the factuality in video captioning and collect two annotated factuality datasets.

Text Generation Video Captioning

Single-Cell Multimodal Prediction via Transformers

1 code implementation1 Mar 2023 Wenzhuo Tang, Hongzhi Wen, Renming Liu, Jiayuan Ding, Wei Jin, Yuying Xie, Hui Liu, Jiliang Tang

The recent development of multimodal single-cell technology has made the possibility of acquiring multiple omics data from individual cells, thereby enabling a deeper understanding of cellular states and dynamics.

Prediction

Single Cells Are Spatial Tokens: Transformers for Spatial Transcriptomic Data Imputation

1 code implementation6 Feb 2023 Hongzhi Wen, Wenzhuo Tang, Wei Jin, Jiayuan Ding, Renming Liu, Xinnan Dai, Feng Shi, Lulu Shang, Hui Liu, Yuying Xie

In particular, investigate the following two key questions: (1) $\textit{how to encode spatial information of cells in transformers}$, and (2) $\textit{ how to train a transformer for transcriptomic imputation}$.

Computational Efficiency Imputation +1

Generative Diffusion Models on Graphs: Methods and Applications

1 code implementation6 Feb 2023 Chengyi Liu, Wenqi Fan, Yunqing Liu, Jiatong Li, Hang Li, Hui Liu, Jiliang Tang, Qing Li

Given the great success of diffusion models in image generation, increasing efforts have been made to leverage these techniques to advance graph generation in recent years.

Denoising Graph Generation +3

Generating Concise Patches for Newly Released Programming Assignments

1 code implementation IEEE Transactions on Software Engineering 2023 Leping Li, Hui Liu, Kejun Li, Yanjie Jiang, and Rui Sun

The key to such approaches is to fix a faulty program by making it equivalent to one of its correct reference programs whose overall structure is identical to that of the faulty submission.

Deep Diversity-Enhanced Feature Representation of Hyperspectral Images

1 code implementation15 Jan 2023 Jinhui Hou, Zhiyu Zhu, Junhui Hou, Hui Liu, Huanqiang Zeng, Deyu Meng

In this paper, we study the problem of efficiently and effectively embedding the high-dimensional spatio-spectral information of hyperspectral (HS) images, guided by feature diversity.

Denoising Diversity +1

Alignment-Enriched Tuning for Patch-Level Pre-trained Document Image Models

1 code implementation27 Nov 2022 Lei Wang, Jiabang He, Xing Xu, Ning Liu, Hui Liu

In this paper, we propose a new model architecture with alignment-enriched tuning (dubbed AETNet) upon pre-trained document image models, to adapt downstream tasks with the joint task-specific supervised and alignment-aware contrastive objective.

EGRC-Net: Embedding-induced Graph Refinement Clustering Network

1 code implementation19 Nov 2022 Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou

To begin, we leverage both semantic and topological information by employing a vanilla auto-encoder and a graph convolution network, respectively, to learn a latent feature representation.

Clustering Graph Clustering

Contrastive Learning enhanced Author-Style Headline Generation

1 code implementation7 Nov 2022 Hui Liu, Weidong Guo, Yige Chen, Xiangyang Li

In this paper, we propose a novel Seq2Seq model called CLH3G (Contrastive Learning enhanced Historical Headlines based Headline Generation) which can use the historical headlines of the articles that the author wrote in the past to improve the headline generation of current articles.

Articles Contrastive Learning +2

Adaptive Fuzzy Tracking Control with Global Prescribed-Time Prescribed Performance for Uncertain Strict-Feedback Nonlinear Systems

no code implementations29 Oct 2022 Bing Mao, Xiaoqun Wu, Hui Liu, Yuhua Xu, Jinhu Lü

Adaptive fuzzy control strategies are established to achieve global prescribed performance with prescribed-time convergence for strict-feedback systems with mismatched uncertainties and unknown nonlinearities.

Probabilistic Categorical Adversarial Attack & Adversarial Training

no code implementations17 Oct 2022 Han Xu, Pengfei He, Jie Ren, Yuxuan Wan, Zitao Liu, Hui Liu, Jiliang Tang

To tackle this problem, we propose Probabilistic Categorical Adversarial Attack (PCAA), which transfers the discrete optimization problem to a continuous problem that can be solved efficiently by Projected Gradient Descent.

Adversarial Attack

Nowhere to Hide: A Lightweight Unsupervised Detector against Adversarial Examples

no code implementations16 Oct 2022 Hui Liu, Bo Zhao, Kehuan Zhang, Peng Liu

In this paper, we propose an AutoEncoder-based Adversarial Examples (AEAE) detector, that can guard DNN models by detecting adversarial examples with low computation in an unsupervised manner.

Towards Multi-Modal Sarcasm Detection via Hierarchical Congruity Modeling with Knowledge Enhancement

1 code implementation7 Oct 2022 Hui Liu, Wenya Wang, Haoliang Li

In this paper, we propose a novel hierarchical framework for sarcasm detection by exploring both the atomic-level congruity based on multi-head cross attention mechanism and the composition-level congruity based on graph neural networks, where a post with low congruity can be identified as sarcasm.

Image Captioning Sarcasm Detection

Learning A Locally Unified 3D Point Cloud for View Synthesis

1 code implementation12 Sep 2022 Meng You, Mantang Guo, Xianqiang Lyu, Hui Liu, Junhui Hou

To tackle this challenging problem, we propose a new deep learning-based view synthesis paradigm that learns a locally unified 3D point cloud from source views.

3D geometry Image Restoration

Task-Balanced Distillation for Object Detection

no code implementations5 Aug 2022 Ruining Tang, Zhenyu Liu, Yangguang Li, Yiguo Song, Hui Liu, Qide Wang, Jing Shao, Guifang Duan, Jianrong Tan

To alleviate this problem, a novel Task-decoupled Feature Distillation (TFD) is proposed by flexibly balancing the contributions of classification and regression tasks.

Classification Knowledge Distillation +4

Semi-Supervised Subspace Clustering via Tensor Low-Rank Representation

1 code implementation21 May 2022 Yuheng Jia, Guanxing Lu, Hui Liu, Junhui Hou

In this letter, we propose a novel semi-supervised subspace clustering method, which is able to simultaneously augment the initial supervisory information and construct a discriminative affinity matrix.

Clustering

Attention-aware contrastive learning for predicting T cell receptor-antigen binding specificity

no code implementations17 May 2022 Yiming Fang, Xuejun Liu, Hui Liu

The limitation can be attributed to the binding specificity of T cell receptor (TCR) to peptide-MHC complex (pMHC).

Contrastive Learning Specificity

Attention-wise masked graph contrastive learning for predicting molecular property

no code implementations2 May 2022 Hui Liu, Yibiao Huang, Xuejun Liu, Lei Deng

We developed a novel molecular graph augmentation strategy, referred to as attention-wise graph mask, to generate challenging positive sample for contrastive learning.

Contrastive Learning Graph Attention +5

Contrastive learning-based computational histopathology predict differential expression of cancer driver genes

1 code implementation25 Apr 2022 Haojie Huang, Gongming Zhou, Xuejun Liu, Lei Deng, Chen Wu, Dachuan Zhang, Hui Liu

We leveraged contrastive learning on large-scale unannotated WSIs to derive slide-level histopathological feature in latent space, and then transfer it to tumor diagnosis and prediction of differentially expressed cancer driver genes.

Contrastive Learning whole slide images

A Comprehensive Survey on Trustworthy Graph Neural Networks: Privacy, Robustness, Fairness, and Explainability

no code implementations18 Apr 2022 Enyan Dai, Tianxiang Zhao, Huaisheng Zhu, Junjie Xu, Zhimeng Guo, Hui Liu, Jiliang Tang, Suhang Wang

Despite their great potential in benefiting humans in the real world, recent study shows that GNNs can leak private information, are vulnerable to adversarial attacks, can inherit and magnify societal bias from training data and lack interpretability, which have risk of causing unintentional harm to the users and society.

Drug Discovery Fairness +1

Content-aware Warping for View Synthesis

1 code implementation22 Jan 2022 Mantang Guo, Junhui Hou, Jing Jin, Hui Liu, Huanqiang Zeng, Jiwen Lu

To this end, we propose content-aware warping, which adaptively learns the interpolation weights for pixels of a relatively large neighborhood from their contextual information via a lightweight neural network.

Novel View Synthesis

Towards Understanding and Harnessing the Effect of Image Transformation in Adversarial Detection

no code implementations4 Jan 2022 Hui Liu, Bo Zhao, Yuefeng Peng, Weidong Li, Peng Liu

Experimental results show that the contribution of image transformations to adversarial detection is significantly different, the combination of them can significantly improve the generic detection ability against state-of-the-art adversarial attacks.

Interpretable Low-Resource Legal Decision Making

no code implementations1 Jan 2022 Rohan Bhambhoria, Hui Liu, Samuel Dahan, Xiaodan Zhu

In this work, we utilize deep learning models in the area of trademark law to shed light on the issue of likelihood of confusion between trademarks.

Decision Making Deep Learning +1

Towards Robust Graph Neural Networks for Noisy Graphs with Sparse Labels

1 code implementation1 Jan 2022 Enyan Dai, Wei Jin, Hui Liu, Suhang Wang

To mitigate these issues, we propose a novel framework which adopts the noisy edges as supervision to learn a denoised and dense graph, which can down-weight or eliminate noisy edges and facilitate message passing of GNNs to alleviate the issue of limited labeled nodes.

Deep Attention-guided Graph Clustering with Dual Self-supervision

1 code implementation10 Nov 2021 Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou

Existing deep embedding clustering works only consider the deepest layer to learn a feature embedding and thus fail to well utilize the available discriminative information from cluster assignments, resulting performance limitation.

Clustering Deep Attention +2

Learning to Detect Open Carry and Concealed Object with 77GHz Radar

no code implementations31 Oct 2021 Xiangyu Gao, Hui Liu, Sumit Roy, Guanbin Xing, Ali Alansari, Youchen Luo

Detecting harmful carried objects plays a key role in intelligent surveillance systems and has widespread applications, for example, in airport security.

Adaptive Attribute and Structure Subspace Clustering Network

1 code implementation28 Sep 2021 Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou

In this paper, we propose a novel adaptive attribute and structure subspace clustering network (AASSC-Net) to simultaneously consider the attribute and structure information in an adaptive graph fusion manner.

Attribute Clustering

Unsupervised Conversation Disentanglement through Co-Training

1 code implementation EMNLP 2021 Hui Liu, Zhan Shi, Xiaodan Zhu

For the message-pair classifier, we enrich its training data by retrieving message pairs with high confidence from the disentangled sessions predicted by the session classifier.

Conversation Disentanglement Disentanglement

Learning Dynamic Interpolation for Extremely Sparse Light Fields with Wide Baselines

1 code implementation ICCV 2021 Mantang Guo, Jing Jin, Hui Liu, Junhui Hou

In this paper, we tackle the problem of dense light field (LF) reconstruction from sparsely-sampled ones with wide baselines and propose a learnable model, namely dynamic interpolation, to replace the commonly-used geometry warping operation.

SSIM

Semantic-embedded Unsupervised Spectral Reconstruction from Single RGB Images in the Wild

1 code implementation ICCV 2021 Zhiyu Zhu, Hui Liu, Junhui Hou, Huanqiang Zeng, Qingfu Zhang

Specifically, on the basis of the intrinsic imaging degradation model of RGB images from HS images, we progressively spread the differences between input RGB images and re-projected RGB images from recovered HS images via effective unsupervised camera spectral response function estimation.

Image Reconstruction Spectral Reconstruction +1

Graph2MDA: a multi-modal variational graph embedding model for predicting microbe-drug associations

1 code implementation14 Aug 2021 Lei Deng, Yibiao Huang, Xuejun Liu, Hui Liu

We evaluated our method on three independent datasets and the experimental results showed that our proposed method outperformed six existing state-of-the-art methods.

Attribute Drug ATC Classification +1

Attention-driven Graph Clustering Network

2 code implementations12 Aug 2021 Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou

The combination of the traditional convolutional network (i. e., an auto-encoder) and the graph convolutional network has attracted much attention in clustering, in which the auto-encoder extracts the node attribute feature and the graph convolutional network captures the topological graph feature.

Attribute Clustering +2

Deep Amended Gradient Descent for Efficient Spectral Reconstruction from Single RGB Images

1 code implementation12 Aug 2021 Zhiyu Zhu, Hui Liu, Junhui Hou, Sen Jia, Qingfu Zhang

Then, we design a lightweight neural network with a multi-stage architecture to mimic the formed amended gradient descent process, in which efficient convolution and novel spectral zero-mean normalization are proposed to effectively extract spatial-spectral features for regressing an initialization, a basic gradient, and an incremental gradient.

Spectral Reconstruction

Enhancing Descriptive Image Captioning with Natural Language Inference

1 code implementation ACL 2021 Zhan Shi, Hui Liu, Xiaodan Zhu

In this paper we propose a novel approach to encourage captioning models to produce more detailed captions using natural language inference, based on the motivation that, among different captions of an image, descriptive captions are more likely to entail less descriptive captions.

Descriptive Image Captioning +1

Feature-Filter: Detecting Adversarial Examples through Filtering off Recessive Features

no code implementations19 Jul 2021 Hui Liu, Bo Zhao, Minzhi Ji, Yuefeng Peng, Jiabao Guo, Peng Liu

In this paper, we reveal that imperceptible adversarial examples are the product of recessive features misleading neural networks, and an adversarial attack is essentially a kind of method to enrich these recessive features in the image.

Adversarial Attack

AutoLoss: Automated Loss Function Search in Recommendations

no code implementations12 Jun 2021 Xiangyu Zhao, Haochen Liu, Wenqi Fan, Hui Liu, Jiliang Tang, Chong Wang

Unlike existing algorithms, the proposed controller can adaptively generate the loss probabilities for different data examples according to their varied convergence behaviors.

Recommendation Systems

Partner Matters! An Empirical Study on Fusing Personas for Personalized Response Selection in Retrieval-Based Chatbots

1 code implementation19 May 2021 Jia-Chen Gu, Hui Liu, Zhen-Hua Ling, Quan Liu, Zhigang Chen, Xiaodan Zhu

Empirical studies on the Persona-Chat dataset show that the partner personas neglected in previous studies can improve the accuracy of response selection in the IMN- and BERT-based models.

Retrieval

Hidden Backdoors in Human-Centric Language Models

1 code implementation1 May 2021 Shaofeng Li, Hui Liu, Tian Dong, Benjamin Zi Hao Zhao, Minhui Xue, Haojin Zhu, Jialiang Lu

We are able to demonstrate the adversary's high success rate of attacks, while maintaining functionality for regular users, with triggers inconspicuous by the human administrators.

Language Modelling Machine Translation +2

Self-supervised Symmetric Nonnegative Matrix Factorization

1 code implementation2 Mar 2021 Yuheng Jia, Hui Liu, Junhui Hou, Sam Kwong, Qingfu Zhang

Inspired by ensemble clustering that aims to seek a better clustering result from a set of clustering results, we propose self-supervised SNMF (S$^3$NMF), which is capable of boosting clustering performance progressively by taking advantage of the sensitivity to initialization characteristic of SNMF, without relying on any additional information.

Clustering

Thermal properties of light mesons from holography

no code implementations22 Feb 2021 Xuanmin Cao, Songyu Qiu, Hui Liu, Danning Li

The thermal widths increase rapidly above the chiral crossover temperature $T_{cp}$, indicating the dissociations of mesons at high temperature.

High Energy Physics - Phenomenology High Energy Physics - Theory

Light Field Reconstruction via Deep Adaptive Fusion of Hybrid Lenses

1 code implementation14 Feb 2021 Jing Jin, Mantang Guo, Junhui Hou, Hui Liu, Hongkai Xiong

Besides, to promote the effectiveness of our method trained with simulated hybrid data on real hybrid data captured by a hybrid LF imaging system, we carefully design the network architecture and the training strategy.

Contact three-manifolds with exactly two simple Reeb orbits

no code implementations9 Feb 2021 Dan Cristofaro-Gardiner, Umberto Hryniewicz, Michael Hutchings, Hui Liu

It is known that every contact form on a closed three-manifold has at least two simple Reeb orbits, and a generic contact form has infinitely many.

Symplectic Geometry Dynamical Systems

Learning Light-Weight Translation Models from Deep Transformer

1 code implementation27 Dec 2020 Bei Li, Ziyang Wang, Hui Liu, Quan Du, Tong Xiao, Chunliang Zhang, Jingbo Zhu

We proposed a novel group-permutation based knowledge distillation approach to compressing the deep Transformer model into a shallow model.

Knowledge Distillation Machine Translation +2

Clustering Ensemble Meets Low-rank Tensor Approximation

1 code implementation16 Dec 2020 Yuheng Jia, Hui Liu, Junhui Hou, Qingfu Zhang

The existing clustering ensemble methods generally construct a co-association matrix, which indicates the pairwise similarity between samples, as the weighted linear combination of the connective matrices from different base clusterings, and the resulting co-association matrix is then adopted as the input of an off-the-shelf clustering algorithm, e. g., spectral clustering.

Clustering Clustering Ensemble

Maximum Entropy Subspace Clustering Network

2 code implementations6 Dec 2020 Zhihao Peng, Yuheng Jia, Hui Liu, Junhui Hou, Qingfu Zhang

Furthermore, we design a novel framework to explicitly decouple the auto-encoder module and the self-expressiveness module.

Clustering

RAMP-CNN: A Novel Neural Network for Enhanced Automotive Radar Object Recognition

3 code implementations13 Nov 2020 Xiangyu Gao, Guanbin Xing, Sumit Roy, Hui Liu

Millimeter-wave radars are being increasingly integrated into commercial vehicles to support new advanced driver-assistance systems by enabling robust and high-performance object detection, localization, as well as recognition - a key component of new environmental perception.

object-detection Object Detection +1

GreedyFool: Multi-Factor Imperceptibility and Its Application to Designing a Black-box Adversarial Attack

1 code implementation14 Oct 2020 Hui Liu, Bo Zhao, Minzhi Ji, Peng Liu

Adversarial examples are well-designed input samples, in which perturbations are imperceptible to the human eyes, but easily mislead the output of deep neural networks (DNNs).

Adversarial Attack

Shallow-to-Deep Training for Neural Machine Translation

1 code implementation EMNLP 2020 Bei Li, Ziyang Wang, Hui Liu, Yufan Jiang, Quan Du, Tong Xiao, Huizhen Wang, Jingbo Zhu

We find that stacking layers is helpful in improving the representation ability of NMT models and adjacent layers perform similarly.

Machine Translation NMT +2

Mitigating Gender Bias for Neural Dialogue Generation with Adversarial Learning

1 code implementation EMNLP 2020 Haochen Liu, Wentao Wang, Yiqi Wang, Hui Liu, Zitao Liu, Jiliang Tang

Extensive experiments on two real-world conversation datasets show that our framework significantly reduces gender bias in dialogue models while maintaining the response quality.

Dialogue Generation Diversity

Yet Meta Learning Can Adapt Fast, It Can Also Break Easily

no code implementations2 Sep 2020 Han Xu, Ya-Xin Li, Xiaorui Liu, Hui Liu, Jiliang Tang

Thus, in this paper, we perform the initial study about adversarial attacks on meta learning under the few-shot classification problem.

Few-Shot Image Classification image-classification +1

Multi-Scale One-Class Recurrent Neural Networks for Discrete Event Sequence Anomaly Detection

1 code implementation31 Aug 2020 Zhiwei Wang, Zhengzhang Chen, Jingchao Ni, Hui Liu, Haifeng Chen, Jiliang Tang

To address these challenges, in this paper, we propose OC4Seq, a multi-scale one-class recurrent neural network for detecting anomalies in discrete event sequences.

Anomaly Detection

Jointly Learning to Align and Summarize for Neural Cross-Lingual Summarization

no code implementations ACL 2020 Yue Cao, Hui Liu, Xiaojun Wan

However, it is a big challenge for the model to directly learn cross-lingual summarization as it requires learning to understand different languages and learning how to summarize at the same time.

Cross-Lingual Transfer

Memory-efficient Embedding for Recommendations

no code implementations26 Jun 2020 Xiangyu Zhao, Haochen Liu, Hui Liu, Jiliang Tang, Weiwei Guo, Jun Shi, Sida Wang, Huiji Gao, Bo Long

Specifically, we first proposed an end-to-end differentiable framework that can calculate the weights over various dimensions for feature fields in a soft and continuous manner with an AutoML based optimization algorithm; then we derive a hard and discrete embedding component architecture according to the maximal weights and retrain the whole recommender framework.

AutoML Recommendation Systems

Sequence to Point Learning Based on Bidirectional Dilated Residual Network for Non Intrusive Load Monitoring

no code implementations30 May 2020 Ziyue Jia, Linfeng Yang, Zhenrong Zhang, Hui Liu, Fannie Kong

Non Intrusive Load Monitoring (NILM) or Energy Disaggregation (ED), seeks to save energy by decomposing corresponding appliances power reading from an aggregate power reading of the whole house.

blind source separation Non-Intrusive Load Monitoring

Attacking Black-box Recommendations via Copying Cross-domain User Profiles

1 code implementation17 May 2020 Wenqi Fan, Tyler Derr, Xiangyu Zhao, Yao Ma, Hui Liu, Jian-Ping Wang, Jiliang Tang, Qing Li

In this work, we present our framework CopyAttack, which is a reinforcement learning based black-box attack method that harnesses real users from a source domain by copying their profiles into the target domain with the goal of promoting a subset of items.

Data Poisoning Deep Learning +1

Does Multi-Encoder Help? A Case Study on Context-Aware Neural Machine Translation

1 code implementation ACL 2020 Bei Li, Hui Liu, Ziyang Wang, Yufan Jiang, Tong Xiao, Jingbo Zhu, Tongran Liu, Changliang Li

In encoder-decoder neural models, multiple encoders are in general used to represent the contextual information in addition to the individual sentence.

Decoder fr-en +4

Multi-View Spectral Clustering Tailored Tensor Low-Rank Representation

no code implementations30 Apr 2020 Yuheng Jia, Hui Liu, Junhui Hou, Sam Kwong, Qingfu Zhang

On the basis of the novel tensor low-rank norm, we formulate MVSC as a convex low-rank tensor recovery problem, which is then efficiently solved with an augmented Lagrange multiplier based method iteratively.

Clustering

RODNet: Radar Object Detection Using Cross-Modal Supervision

1 code implementation3 Mar 2020 Yizhou Wang, Zhongyu Jiang, Xiangyu Gao, Jenq-Neng Hwang, Guanbin Xing, Hui Liu

Radar is usually more robust than the camera in severe driving scenarios, e. g., weak/strong lighting and bad weather.

Autonomous Driving Object +3

Experiments with mmWave Automotive Radar Test-bed

1 code implementation29 Dec 2019 Xiangyu Gao, Guanbin Xing, Sumit Roy, Hui Liu

Millimeter-wave (mmW) radars are being increasingly integrated in commercial vehicles to support new Adaptive Driver Assisted Systems (ADAS) for its ability to provide high accuracy location, velocity, and angle estimates of objects, largely independent of environmental conditions.

Object Recognition

Learning Multi-level Dependencies for Robust Word Recognition

2 code implementations22 Nov 2019 Zhiwei Wang, Hui Liu, Jiliang Tang, Songfan Yang, Gale Yan Huang, Zitao Liu

Robust language processing systems are becoming increasingly important given the recent awareness of dangerous situations where brittle machine learning models can be easily broken with the presence of noises.

Stochastic Channel-Based Federated Learning for Medical Data Privacy Preserving

no code implementations23 Oct 2019 Rulin Shao, Hongyu He, Hui Liu, Dianbo Liu

Specifically, we design, implement and evaluate a channel-based update algorithm for the central server in a distributed system, which selects the channels with regard to the most active features in a training loop and uploads them as learned information from local datasets.

Federated Learning Privacy Preserving

Does Gender Matter? Towards Fairness in Dialogue Systems

1 code implementation COLING 2020 Haochen Liu, Jamell Dacon, Wenqi Fan, Hui Liu, Zitao Liu, Jiliang Tang

In particular, we construct a benchmark dataset and propose quantitative measures to understand fairness in dialogue models.

Fairness

Privacy Preserving Stochastic Channel-Based Federated Learning with Neural Network Pruning

no code implementations4 Oct 2019 Rulin Shao, Hui Liu, Dianbo Liu

Artificial neural network has achieved unprecedented success in a wide variety of domains such as classifying, predicting and recognizing objects.

Federated Learning Network Pruning +1

Adversarial Attacks and Defenses in Images, Graphs and Text: A Review

3 code implementations17 Sep 2019 Han Xu, Yao Ma, Haochen Liu, Debayan Deb, Hui Liu, Jiliang Tang, Anil K. Jain

In this survey, we review the state of the art algorithms for generating adversarial examples and the countermeasures against adversarial examples, for the three popular data types, i. e., images, graphs and text.

Adversarial Attack

DEAR: Deep Reinforcement Learning for Online Advertising Impression in Recommender Systems

no code implementations9 Sep 2019 Xiangyu Zhao, Changsheng Gu, Haoshenglun Zhang, Xiwang Yang, Xiaobing Liu, Jiliang Tang, Hui Liu

However, most RL-based advertising algorithms focus on optimizing ads' revenue while ignoring the possible negative influence of ads on user experience of recommended items (products, articles and videos).

Articles Deep Reinforcement Learning +3

INS: An Interactive Chinese News Synthesis System

no code implementations NAACL 2019 Hui Liu, Wentao Qin, Xiaojun Wan

So it is of vital importance to automatically synthesize a batch of news articles related to the event or topic into a new synthesis article (or overview article) for reader's convenience.

Articles

Clustering-aware Graph Construction: A Joint Learning Perspective

no code implementations4 May 2019 Yuheng Jia, Hui Liu, Junhui Hou, Sam Kwong

Graph-based clustering methods have demonstrated the effectiveness in various applications.

Clustering Graph Clustering +1

Whole-Chain Recommendations

no code implementations11 Feb 2019 Xiangyu Zhao, Long Xia, Linxin Zou, Hui Liu, Dawei Yin, Jiliang Tang

With the recent prevalence of Reinforcement Learning (RL), there have been tremendous interests in developing RL-based recommender systems.

Multi-agent Reinforcement Learning Recommendation Systems +2

Towards Explainable NLP: A Generative Explanation Framework for Text Classification

no code implementations ACL 2019 Hui Liu, Qingyu Yin, William Yang Wang

Building explainable systems is a critical problem in the field of Natural Language Processing (NLP), since most machine learning models provide no explanations for the predictions.

BIG-bench Machine Learning General Classification +2

Three-Dimensional Radiotherapy Dose Prediction on Head and Neck Cancer Patients with a Hierarchically Densely Connected U-net Deep Learning Architecture

no code implementations25 May 2018 Dan Nguyen, Xun Jia, David Sher, Mu-Han Lin, Zohaib Iqbal, Hui Liu, Steve Jiang

The treatment planning process for patients with head and neck (H&N) cancer is regarded as one of the most complicated due to large target volume, multiple prescription dose levels, and many radiation-sensitive critical structures near the target.

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