Search Results for author: Li Guo

Found 41 papers, 12 papers with code

Slot Dependency Modeling for Zero-Shot Cross-Domain Dialogue State Tracking

no code implementations COLING 2022 Qingyue Wang, Yanan Cao, Piji Li, Yanhe Fu, Zheng Lin, Li Guo

Zero-shot learning for Dialogue State Tracking (DST) focuses on generalizing to an unseen domain without the expense of collecting in domain data.

Dialogue State Tracking Zero-Shot Learning

AlignVSR: Audio-Visual Cross-Modal Alignment for Visual Speech Recognition

1 code implementation21 Oct 2024 Zehua Liu, Xiaolou Li, Chen Chen, Li Guo, Lantian Li, Dong Wang

Then, based on the temporal correspondence between audio and video, a frame-level local alignment loss is introduced to refine the global alignment, improving the utility of the audio information.

cross-modal alignment speech-recognition +1

Generalization Boosted Adapter for Open-Vocabulary Segmentation

no code implementations13 Sep 2024 Wenhao Xu, Changwei Wang, Xuxiang Feng, Rongtao Xu, Longzhao Huang, Zherui Zhang, Li Guo, Shibiao Xu

To address these limitations, we propose Generalization Boosted Adapter (GBA), a novel adapter strategy that enhances the generalization and robustness of VLMs for open-vocabulary segmentation.

Object Recognition Segmentation

PSTNet: Enhanced Polyp Segmentation with Multi-scale Alignment and Frequency Domain Integration

no code implementations13 Sep 2024 Wenhao Xu, Rongtao Xu, Changwei Wang, Xiuli Li, Shibiao Xu, Li Guo

Accurate segmentation of colorectal polyps in colonoscopy images is crucial for effective diagnosis and management of colorectal cancer (CRC).

Management Segmentation

The Prevalence of Neural Collapse in Neural Multivariate Regression

no code implementations6 Sep 2024 George Andriopoulos, Zixuan Dong, Li Guo, Zifan Zhao, Keith Ross

After empirically establishing the prevalence of (NRC1)-(NRC3) for a variety of datasets and network architectures, we provide an explanation of these phenomena by modeling the regression task in the context of the Unconstrained Feature Model (UFM), in which the last layer feature vectors are treated as free variables when minimizing the loss function.

Imitation Learning regression

Automatic Medical Report Generation: Methods and Applications

no code implementations26 Aug 2024 Li Guo, Anas M. Tahir, Dong Zhang, Z. Jane Wang, Rabab K. Ward

The increasing demand for medical imaging has surpassed the capacity of available radiologists, leading to diagnostic delays and potential misdiagnoses.

Diagnostic Medical Report Generation

HCF-Net: Hierarchical Context Fusion Network for Infrared Small Object Detection

1 code implementation16 Mar 2024 Shibiao Xu, ShuChen Zheng, Wenhao Xu, Rongtao Xu, Changwei Wang, Jiguang Zhang, Xiaoqiang Teng, Ao Li, Li Guo

Infrared small object detection is an important computer vision task involving the recognition and localization of tiny objects in infrared images, which usually contain only a few pixels.

channel selection object-detection +1

Cross Entropy versus Label Smoothing: A Neural Collapse Perspective

no code implementations6 Feb 2024 Li Guo, Keith Ross, Zifan Zhao, George Andriopoulos, Shuyang Ling, Yufeng Xu, Zixuan Dong

We first show empirically that models trained with label smoothing converge faster to neural collapse solutions and attain a stronger level of neural collapse.

Local Feature Matching Using Deep Learning: A Survey

1 code implementation31 Jan 2024 Shibiao Xu, Shunpeng Chen, Rongtao Xu, Changwei Wang, Peng Lu, Li Guo

The objective of this endeavor is to furnish a comprehensive overview of local feature matching methods.

3D Reconstruction Deep Learning +5

Boosting Few-Shot Segmentation via Instance-Aware Data Augmentation and Local Consensus Guided Cross Attention

no code implementations18 Jan 2024 Li Guo, Haoming Liu, Yuxuan Xia, Chengyu Zhang, Xiaochen Lu

On the other hand, the large visual difference between query and support images may hinder knowledge transfer and cripple the segmentation performance.

Data Augmentation Segmentation +1

Advances in Embodied Navigation Using Large Language Models: A Survey

1 code implementation1 Nov 2023 Jinzhou Lin, Han Gao, Xuxiang Feng, Rongtao Xu, Changwei Wang, Man Zhang, Li Guo, Shibiao Xu

This article offers an exhaustive summary of the symbiosis between LLMs and embodied intelligence with a focus on navigation.

Decision Making

Knowledge-driven Meta-learning for CSI Feedback

no code implementations24 Oct 2023 Han Xiao, Wenqiang Tian, Wendong Liu, Jiajia Guo, Zhi Zhang, Shi Jin, Zhihua Shi, Li Guo, Jia Shen

In this article, a knowledge-driven meta-learning approach is proposed, where the DL model initialized by the meta model obtained from meta training phase is able to achieve rapid convergence when facing a new scenario during target retraining phase.

Meta-Learning

Recursively Summarizing Enables Long-Term Dialogue Memory in Large Language Models

no code implementations29 Aug 2023 Qingyue Wang, Liang Ding, Yanan Cao, Zhiliang Tian, Shi Wang, DaCheng Tao, Li Guo

We evaluate our method on both open and closed LLMs, and the experiments on the widely-used public dataset show that our method can generate more consistent responses in a long-context conversation.

16k 8k +1

Divide, Conquer, and Combine: Mixture of Semantic-Independent Experts for Zero-Shot Dialogue State Tracking

no code implementations1 Jun 2023 Qingyue Wang, Liang Ding, Yanan Cao, Yibing Zhan, Zheng Lin, Shi Wang, DaCheng Tao, Li Guo

Zero-shot transfer learning for Dialogue State Tracking (DST) helps to handle a variety of task-oriented dialogue domains without the cost of collecting in-domain data.

Dialogue State Tracking Transfer Learning

Meta Omnium: A Benchmark for General-Purpose Learning-to-Learn

1 code implementation CVPR 2023 Ondrej Bohdal, Yinbing Tian, Yongshuo Zong, Ruchika Chavhan, Da Li, Henry Gouk, Li Guo, Timothy Hospedales

Meta-learning and other approaches to few-shot learning are widely studied for image recognition, and are increasingly applied to other vision tasks such as pose estimation and dense prediction.

Few-Shot Learning Pose Estimation +1

A Knowledge-Driven Meta-Learning Method for CSI Feedback

no code implementations31 Jan 2023 Han Xiao, Wenqiang Tian, Wendong Liu, Zhi Zhang, Zhihua Shi, Li Guo, Jia Shen

Recently, deep learning (DL) has been introduced to enhance CSI feedback in massive MIMO application, where the massive collected training data and lengthy training time are costly and impractical for realistic deployment.

Meta-Learning

Deep CardioSound-An Ensembled Deep Learning Model for Heart Sound MultiLabelling

no code implementations15 Apr 2022 Li Guo, Steven Davenport, Yonghong Peng

Heart sound diagnosis and classification play an essential role in detecting cardiovascular disorders, especially when the remote diagnosis becomes standard clinical practice.

Sound Classification Specificity

Distribution Locational Marginal Pricing Under Uncertainty Considering Coordination of Distribution and Wholesale Markets

no code implementations14 Oct 2021 Zongzheng Zhao, Yixin Liu, Li Guo, Linquan Bai, Chengshan Wang

An effective distribution electricity market (DEM) is required to manage the rapidly growing small-scale distributed energy resources (DERs) in distribution systems (DSs).

Scheduling

A New Weakly Supervised Learning Approach for Real-time Iron Ore Feed Load Estimation

no code implementations6 Oct 2021 Li Guo, Yonghong Peng, Rui Qin, Bingyu Liu

Iron ore feed load control is one of the most critical settings in a mineral grinding process, directly impacting the quality of final products.

Weakly-supervised Learning

A Time-Varying Network for Cryptocurrencies

no code implementations26 Aug 2021 Li Guo, Wolfgang Karl Härdle, Yubo Tao

To investigate these effects, we build a time-varying network for cryptocurrencies, based on the evolution of return cross-predictability and technological similarities.

Clustering

Renormalization of quasisymmetric functions

no code implementations22 Dec 2020 Li Guo, Houyi Yu, Bin Zhang

As a natural basis of the Hopf algebra of quasisymmetric functions, monomial quasisymmetric functions are formal power series defined from compositions.

Combinatorics Mathematical Physics Mathematical Physics Number Theory Quantum Algebra 05E05, 81%15, 16T05, 17B38, 11M32, 16W99, 11B73

Vision-based Price Suggestion for Online Second-hand Items

no code implementations10 Dec 2020 Liang Han, Zhaozheng Yin, Zhurong Xia, Li Guo, Mingqian Tang, Rong Jin

Then, we design a vision-based price suggestion module which takes the extracted visual features along with some statistical item features from the shopping platform as the inputs to determine whether an uploaded item image is qualified for price suggestion by a binary classification model, and provide price suggestions for items with qualified images by a regression model.

Binary Classification Decision Making +1

Document-level Relation Extraction with Dual-tier Heterogeneous Graph

no code implementations COLING 2020 Zhenyu Zhang, Bowen Yu, Xiaobo Shu, Tingwen Liu, Hengzhu Tang, Wang Yubin, Li Guo

Document-level relation extraction (RE) poses new challenges over its sentence-level counterpart since it requires an adequate comprehension of the whole document and the multi-hop reasoning ability across multiple sentences to reach the final result.

Decision Making Document-level Relation Extraction +2

Intelligent Reflecting Surface Enhanced Indoor Robot Path Planning: A Radio Map based Approach

no code implementations27 Sep 2020 Xidong Mu, Yuanwei Liu, Li Guo, Jiaru Lin, Robert Schober

Based on the obtained channel power gain map, the communication-aware robot path planing problem is solved by exploiting graph theory.

Robot Navigation

Intelligent Reflecting Surface Enhanced Indoor Robot Path Planning Using Radio Maps

no code implementations24 Sep 2020 Xidong Mu, Yuanwei Liu, Li Guo, Jiaru Lin, Robert Schober

Based on the obtained channel power gain map, the communication-aware robot path planing problem is solved as a shortest path problem by exploiting graph theory.

Robot Navigation

A Relation-Specific Attention Network for Joint Entity and Relation Extraction

1 code implementation1 Jul 2020 Yue Yuan, Xiaofei Zhou, Shirui Pan, Qiannan Zhu, Zeliang Song, Li Guo

Joint extraction of entities and relations is an important task in natural language processing (NLP), which aims to capture all relational triplets from plain texts.

Joint Entity and Relation Extraction Relation +1

Exploiting Intelligent Reflecting Surfaces in NOMA Networks: Joint Beamforming Optimization

no code implementations30 Oct 2019 Xidong Mu, Yuanwei Liu, Li Guo, Jiaru Lin, Naofal Al-Dhahir

Our goal is to maximize the sum rate of all users by jointly optimizing the active beamforming at the BS and the passive beamforming at the IRS, subject to successive interference cancellation decoding rate conditions and IRS reflecting elements constraints.

Quantization

Deep Active Learning for Anchor User Prediction

1 code implementation18 Jun 2019 Anfeng Cheng, Chuan Zhou, Hong Yang, Jia Wu, Lei LI, Jianlong Tan, Li Guo

Due to the expensive costs of labeling anchor users for training prediction models, we consider in this paper the problem of minimizing the number of user pairs across multiple networks for labeling as to improve the accuracy of the prediction.

Active Learning Prediction

Improving Knowledge Graph Embedding Using Simple Constraints

1 code implementation ACL 2018 Boyang Ding, Quan Wang, Bin Wang, Li Guo

We examine non-negativity constraints on entity representations and approximate entailment constraints on relation representations.

Knowledge Graph Embedding Knowledge Graphs

Knowledge Graph Embedding with Iterative Guidance from Soft Rules

1 code implementation30 Nov 2017 Shu Guo, Quan Wang, Lihong Wang, Bin Wang, Li Guo

In this paper, we propose Rule-Guided Embedding (RUGE), a novel paradigm of KG embedding with iterative guidance from soft rules.

Knowledge Graph Embedding Knowledge Graphs +1

Joint News, Attention Spillover,and Market Returns

no code implementations8 Mar 2017 Li Guo, Lin Peng, Yubo Tao, Jun Tu

We analyze over 2. 6 million news articles and propose a novel measure of aggregate joint news coverage of firms.

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