Search Results for author: Qidong Liu

Found 12 papers, 6 papers with code

ControlTraj: Controllable Trajectory Generation with Topology-Constrained Diffusion Model

no code implementations23 Apr 2024 Yuanshao Zhu, James Jianqiao Yu, Xiangyu Zhao, Qidong Liu, Yongchao Ye, Wei Chen, Zijian Zhang, Xuetao Wei, Yuxuan Liang

Generating trajectory data is among promising solutions to addressing privacy concerns, collection costs, and proprietary restrictions usually associated with human mobility analyses.

Editing Factual Knowledge and Explanatory Ability of Medical Large Language Models

1 code implementation28 Feb 2024 Derong Xu, Ziheng Zhang, Zhihong Zhu, Zhenxi Lin, Qidong Liu, Xian Wu, Tong Xu, Xiangyu Zhao, Yefeng Zheng, Enhong Chen

In this paper, we propose two model editing studies and validate them in the medical domain: (1) directly editing the factual medical knowledge and (2) editing the explanations to facts.

Hallucination Model Editing

Large Language Model Distilling Medication Recommendation Model

1 code implementation5 Feb 2024 Qidong Liu, Xian Wu, Xiangyu Zhao, Yuanshao Zhu, Zijian Zhang, Feng Tian, Yefeng Zheng

In this paper, we introduce a novel approach called Large Language Model Distilling Medication Recommendation (LEADER).

Knowledge Distillation Language Modelling +2

MOELoRA: An MOE-based Parameter Efficient Fine-Tuning Method for Multi-task Medical Applications

2 code implementations21 Oct 2023 Qidong Liu, Xian Wu, Xiangyu Zhao, Yuanshao Zhu, Derong Xu, Feng Tian, Yefeng Zheng

Additionally, we propose a task-motivated gate function for all MOELoRA layers that can regulate the contributions of each expert and generate distinct parameters for various tasks.

Multi-Task Learning

InvKA: Gait Recognition via Invertible Koopman Autoencoder

no code implementations26 Sep 2023 Fan Li, Dong Liang, Jing Lian, Qidong Liu, Hegui Zhu, Jizhao Liu

Most current gait recognition methods suffer from poor interpretability and high computational cost.

Gait Recognition

Diffusion Augmentation for Sequential Recommendation

1 code implementation22 Sep 2023 Qidong Liu, Fan Yan, Xiangyu Zhao, Zhaocheng Du, Huifeng Guo, Ruiming Tang, Feng Tian

However, sequential recommendation often faces the problem of data sparsity, which widely exists in recommender systems.

Data Augmentation Sequential Recommendation

PromptST: Prompt-Enhanced Spatio-Temporal Multi-Attribute Prediction

no code implementations18 Sep 2023 Zijian Zhang, Xiangyu Zhao, Qidong Liu, Chunxu Zhang, Qian Ma, Wanyu Wang, Hongwei Zhao, Yiqi Wang, Zitao Liu

We devise a spatio-temporal transformer and a parameter-sharing training scheme to address the common knowledge among different spatio-temporal attributes.

Attribute

Multimodal Recommender Systems: A Survey

1 code implementation8 Feb 2023 Qidong Liu, Jiaxi Hu, Yutian Xiao, Jingtong Gao, Xiangyu Zhao

In this paper, we will give a comprehensive survey of the MRS models, mainly from technical views.

Attribute Model Optimization +1

Focal and Global Spatial-Temporal Transformer for Skeleton-based Action Recognition

no code implementations6 Oct 2022 Zhimin Gao, Peitao Wang, Pei Lv, Xiaoheng Jiang, Qidong Liu, Pichao Wang, Mingliang Xu, Wanqing Li

Besides, these methods directly calculate the pair-wise global self-attention equally for all the joints in both the spatial and temporal dimensions, undervaluing the effect of discriminative local joints and the short-range temporal dynamics.

Action Recognition Skeleton Based Action Recognition

A Comprehensive Survey on Trustworthy Recommender Systems

no code implementations21 Sep 2022 Wenqi Fan, Xiangyu Zhao, Xiao Chen, Jingran Su, Jingtong Gao, Lin Wang, Qidong Liu, Yiqi Wang, Han Xu, Lei Chen, Qing Li

As one of the most successful AI-powered applications, recommender systems aim to help people make appropriate decisions in an effective and efficient way, by providing personalized suggestions in many aspects of our lives, especially for various human-oriented online services such as e-commerce platforms and social media sites.

Fairness Recommendation Systems

The Butterfly Effect in Primary Visual Cortex

no code implementations15 Apr 2021 Jizhao Liu, Jing Lian, J C Sprott, Qidong Liu, Yide Ma

Experimental results on image segmentation indicate that the CCNN model has better performance than the state-of-the-art of visual cortex neural network models.

Computational Efficiency Image Segmentation +1

Global Optimal Path-Based Clustering Algorithm

1 code implementation17 Sep 2019 Qidong Liu, Ruisheng Zhang

The results on synthetic datasets show that the GOPC algorithm can recognize all kinds of clusters regardless of their shapes, sizes, or densities.

Clustering Combinatorial Optimization

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