Search Results for author: Yucheng Shi

Found 28 papers, 16 papers with code

Extract and Merge: Superpixel Segmentation with Regional Attributes

no code implementations ECCV 2020 Jianqiao An, Yucheng Shi, Yahong Han, Meijun Sun, Qi Tian

For a certain object in an image, the relationship between its central region and the peripheral region is not well utilized in existing superpixel segmentation methods.

Attribute Superpixels

Towards Trustworthy GUI Agents: A Survey

1 code implementation30 Mar 2025 Yucheng Shi, Wenhao Yu, Wenlin Yao, Wenhu Chen, Ninghao Liu

GUI agents, powered by large foundation models, can interact with digital interfaces, enabling various applications in web automation, mobile navigation, and software testing.

Decision Making Sequential Decision Making +2

Correctness Learning: Deductive Verification Guided Learning for Human-AI Collaboration

no code implementations10 Mar 2025 Zhao Jin, Lu Jin, Yizhe Luo, Shuo Feng, Yucheng Shi, Kai Zheng, Xinde Yu, Mingliang Xu

Despite significant progress in AI and decision-making technologies in safety-critical fields, challenges remain in verifying the correctness of decision output schemes and verification-result driven design.

Decision Making

SearchRAG: Can Search Engines Be Helpful for LLM-based Medical Question Answering?

no code implementations18 Feb 2025 Yucheng Shi, Tianze Yang, Canyu Chen, Quanzheng Li, Tianming Liu, Xiang Li, Ninghao Liu

Large Language Models (LLMs) have shown remarkable capabilities in general domains but often struggle with tasks requiring specialized knowledge.

Question Answering RAG

Applying Neural Monte Carlo Tree Search to Unsignalized Multi-intersection Scheduling for Autonomous Vehicles

no code implementations24 Oct 2024 Yucheng Shi, Wenlong Wang, Xiaowen Tao, Ivana Dusparic, Vinny Cahill

In this paper, we apply Neural Monte Carlo Tree Search (NMCTS) to the challenging task of scheduling platoons of vehicles crossing unsignalized intersections.

Autonomous Vehicles Scheduling

Drama: Mamba-Enabled Model-Based Reinforcement Learning Is Sample and Parameter Efficient

1 code implementation11 Oct 2024 Wenlong Wang, Ivana Dusparic, Yucheng Shi, Ke Zhang, Vinny Cahill

Transformers, on the other hand, suffer from the quadratic memory and computational complexity of self-attention mechanisms, scaling as $O(n^2)$, where $n$ is the sequence length.

Mamba Model-based Reinforcement Learning +1

ECHOPulse: ECG controlled echocardio-grams video generation

1 code implementation4 Oct 2024 Yiwei Li, Sekeun Kim, Zihao Wu, Hanqi Jiang, Yi Pan, Pengfei Jin, Sifan Song, Yucheng Shi, Tianming Liu, Quanzheng Li, Xiang Li

Echocardiography (ECHO) is essential for cardiac assessments, but its video quality and interpretation heavily relies on manual expertise, leading to inconsistent results from clinical and portable devices.

Video Generation

MGH Radiology Llama: A Llama 3 70B Model for Radiology

no code implementations13 Aug 2024 Yucheng Shi, Peng Shu, Zhengliang Liu, Zihao Wu, Quanzheng Li, Tianming Liu, Ninghao Liu, Xiang Li

In recent years, the field of radiology has increasingly harnessed the power of artificial intelligence (AI) to enhance diagnostic accuracy, streamline workflows, and improve patient care.

Diagnostic Language Modeling +2

Leveraging Large Language Models with Chain-of-Thought and Prompt Engineering for Traffic Crash Severity Analysis and Inference

no code implementations4 Aug 2024 Hao Zhen, Yucheng Shi, Yongcan Huang, Jidong J. Yang, Ninghao Liu

The LLMs were tasked with crash severity inference to: (1) evaluate the models' capabilities in crash severity analysis, (2) assess the effectiveness of CoT and domain-informed prompt engineering, and (3) examine the reasoning abilities with the CoT framework.

Logical Reasoning Prompt Engineering

UCB-driven Utility Function Search for Multi-objective Reinforcement Learning

1 code implementation1 May 2024 Yucheng Shi, Alexandros Agapitos, David Lynch, Giorgio Cruciata, Cengis Hasan, Hao Wang, Yayu Yao, Aleksandar Milenovic

In Multi-objective Reinforcement Learning (MORL) agents are tasked with optimising decision-making behaviours that trade-off between multiple, possibly conflicting, objectives.

Decision Making MuJoCo +3

Language Ranker: A Metric for Quantifying LLM Performance Across High and Low-Resource Languages

1 code implementation17 Apr 2024 Zihao Li, Yucheng Shi, Zirui Liu, Fan Yang, Ali Payani, Ninghao Liu, Mengnan Du

Besides, the experiments show that there is a strong correlation between the LLM's performance in different languages and the proportion of those languages in its pre-training corpus.

Usable XAI: 10 Strategies Towards Exploiting Explainability in the LLM Era

1 code implementation13 Mar 2024 Xuansheng Wu, Haiyan Zhao, Yaochen Zhu, Yucheng Shi, Fan Yang, Tianming Liu, Xiaoming Zhai, Wenlin Yao, Jundong Li, Mengnan Du, Ninghao Liu

Therefore, in this paper, we introduce Usable XAI in the context of LLMs by analyzing (1) how XAI can benefit LLMs and AI systems, and (2) how LLMs can contribute to the advancement of XAI.

Automated Natural Language Explanation of Deep Visual Neurons with Large Models

no code implementations16 Oct 2023 Chenxu Zhao, Wei Qian, Yucheng Shi, Mengdi Huai, Ninghao Liu

Deep neural networks have exhibited remarkable performance across a wide range of real-world tasks.

MKRAG: Medical Knowledge Retrieval Augmented Generation for Medical Question Answering

no code implementations27 Sep 2023 Yucheng Shi, Shaochen Xu, Tianze Yang, Zhengliang Liu, Tianming Liu, Quanzheng Li, Xiang Li, Ninghao Liu

Focusing on medical QA, we evaluate the impact of different retrieval models and the number of facts on LLM performance using the MedQA-SMILE dataset.

In-Context Learning MedQA +4

GiGaMAE: Generalizable Graph Masked Autoencoder via Collaborative Latent Space Reconstruction

1 code implementation18 Aug 2023 Yucheng Shi, Yushun Dong, Qiaoyu Tan, Jundong Li, Ninghao Liu

By considering embeddings encompassing graph topology and attribute information as reconstruction targets, our model could capture more generalized and comprehensive knowledge.

Attribute Self-Supervised Learning

ENGAGE: Explanation Guided Data Augmentation for Graph Representation Learning

1 code implementation3 Jul 2023 Yucheng Shi, Kaixiong Zhou, Ninghao Liu

Then, we design two data augmentation schemes on graphs for perturbing structural and feature information, respectively.

Contrastive Learning Data Augmentation +1

Could Small Language Models Serve as Recommenders? Towards Data-centric Cold-start Recommendations

1 code implementation29 Jun 2023 Xuansheng Wu, Huachi Zhou, Yucheng Shi, Wenlin Yao, Xiao Huang, Ninghao Liu

To evaluate our approach, we introduce a cold-start recommendation benchmark, and the results demonstrate that the enhanced small language models can achieve comparable cold-start recommendation performance to that of large models with only $17\%$ of the inference time.

In-Context Learning Language Modeling +3

Interpretation of Time-Series Deep Models: A Survey

no code implementations23 May 2023 Ziqi Zhao, Yucheng Shi, Shushan Wu, Fan Yang, WenZhan Song, Ninghao Liu

Deep learning models developed for time-series associated tasks have become more widely researched nowadays.

Survey Time Series

ChatGraph: Interpretable Text Classification by Converting ChatGPT Knowledge to Graphs

1 code implementation3 May 2023 Yucheng Shi, Hehuan Ma, Wenliang Zhong, Qiaoyu Tan, Gengchen Mai, Xiang Li, Tianming Liu, Junzhou Huang

To tackle these limitations, we propose a novel framework that leverages the power of ChatGPT for specific tasks, such as text classification, while improving its interpretability.

Decision Making Language Modeling +4

Black-box Backdoor Defense via Zero-shot Image Purification

1 code implementation NeurIPS 2023 Yucheng Shi, Mengnan Du, Xuansheng Wu, Zihan Guan, Jin Sun, Ninghao Liu

Defending against such attacks is challenging, especially for real-world black-box models where only query access is permitted.

backdoor defense

Co-supervised learning paradigm with conditional generative adversarial networks for sample-efficient classification

1 code implementation27 Dec 2022 Hao Zhen, Yucheng Shi, Jidong J. Yang, Javad Mohammadpour Vehni

Classification using supervised learning requires annotating a large amount of classes-balanced data for model training and testing.

Generative Adversarial Network

Decision-based Black-box Attack Against Vision Transformers via Patch-wise Adversarial Removal

1 code implementation7 Dec 2021 Yucheng Shi, Yahong Han, Yu-an Tan, Xiaohui Kuang

On the other hand, the neglect of noise sensitivity differences between image regions by existing decision-based attacks further compromises the efficiency of noise compression, especially for ViTs.

Adversarial Robustness

Domain Adaptation without Model Transferring

no code implementations21 Jul 2021 Kunhong Wu, Yucheng Shi, Yahong Han, Yunfeng Shao, Bingshuai Li, Qi Tian

Existing unsupervised domain adaptation (UDA) methods can achieve promising performance without transferring data from source domain to target domain.

model Unsupervised Domain Adaptation

Polishing Decision-Based Adversarial Noise With a Customized Sampling

no code implementations CVPR 2020 Yucheng Shi, Yahong Han, Qi Tian

We propose Customized Adversarial Boundary (CAB) attack that uses the current noise to model the sensitivity of each pixel and polish adversarial noise of each image with a customized sampling setting.

Adversarial Attack Image Classification

Curls & Whey: Boosting Black-Box Adversarial Attacks

1 code implementation CVPR 2019 Yucheng Shi, Siyu Wang, Yahong Han

On the one hand, existing iterative attacks add noises monotonically along the direction of gradient ascent, resulting in a lack of diversity and adaptability of the generated iterative trajectories.

Adversarial Attack Diversity

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