Search Results for author: Zhang Xiong

Found 16 papers, 5 papers with code

Wasserstein Dependent Graph Attention Network for Collaborative Filtering with Uncertainty

no code implementations9 Apr 2024 Haoxuan Li, Yuanxin Ouyang, Zhuang Liu, Wenge Rong, Zhang Xiong

We utilize graph attention network and Wasserstein distance to address the limitations of LightGCN and Kullback-Leibler divergence (KL) divergence to learn Gaussian embedding for each user and item.

Collaborative Filtering Graph Attention +1

A Review of Data Mining in Personalized Education: Current Trends and Future Prospects

no code implementations27 Feb 2024 Zhang Xiong, Haoxuan Li, Zhuang Liu, Zhuofan Chen, Hao Zhou, Wenge Rong, Yuanxin Ouyang

Personalized education, tailored to individual student needs, leverages educational technology and artificial intelligence (AI) in the digital age to enhance learning effectiveness.

cognitive diagnosis Knowledge Tracing

Transformer-Patcher: One Mistake worth One Neuron

1 code implementation24 Jan 2023 Zeyu Huang, Yikang Shen, Xiaofeng Zhang, Jie zhou, Wenge Rong, Zhang Xiong

Our method outperforms previous fine-tuning and HyperNetwork-based methods and achieves state-of-the-art performance for Sequential Model Editing (SME).

Model Editing

Mixture of Attention Heads: Selecting Attention Heads Per Token

1 code implementation11 Oct 2022 Xiaofeng Zhang, Yikang Shen, Zeyu Huang, Jie zhou, Wenge Rong, Zhang Xiong

This paper proposes the Mixture of Attention Heads (MoA), a new architecture that combines multi-head attention with the MoE mechanism.

Computational Efficiency Language Modelling +2

Causal Intervention for Fairness in Multi-behavior Recommendation

no code implementations10 Sep 2022 Xi Wang, Wenjie Wang, Fuli Feng, Wenge Rong, Chuantao Yin, Zhang Xiong

Specifically, we find that: 1) item popularity is a confounder between the exposed items and users' post-click interactions, leading to the first unfairness; and 2) some hidden confounders (e. g., the reputation of item producers) affect both item popularity and quality, resulting in the second unfairness.

Fairness Recommendation Systems

PREMA: Part-based REcurrent Multi-view Aggregation Network for 3D Shape Retrieval

no code implementations9 Nov 2021 Jiongchao Jin, Huanqiang Xu, Pengliang Ji, Zehao Tang, Zhang Xiong

We propose the Part-based Recurrent Multi-view Aggregation network(PREMA) to eliminate the detrimental effects of the practical view defects, such as insufficient view numbers, occlusions or background clutters, and also enhance the discriminative ability of shape representations.

3D Shape Retrieval Retrieval

Contrastive Learning for Recommender System

no code implementations5 Jan 2021 Zhuang Liu, Yunpu Ma, Yuanxin Ouyang, Zhang Xiong

To solve this problem, we propose a graph contrastive learning module for a general recommender system that learns the embeddings in a self-supervised manner and reduces the randomness of message dropout.

Collaborative Filtering Contrastive Learning +2

A General Recurrent Tracking Framework Without Real Data

no code implementations ICCV 2021 Shuai Wang, Hao Sheng, Yang Zhang, Yubin Wu, Zhang Xiong

Based on this framework, a Recurrent Tracking Unit (RTU) is designed to score potential tracks through long-term information.

Multi-Object Tracking

DR-KFS: A Differentiable Visual Similarity Metric for 3D Shape Reconstruction

no code implementations ECCV 2020 Jiongchao Jin, Akshay Gadi Patil, Zhang Xiong, Hao Zhang

We introduce a differential visual similarity metric to train deep neural networks for 3D reconstruction, aimed at improving reconstruction quality.

3D Reconstruction 3D Shape Reconstruction +1

Similarity Based Auxiliary Classifier for Named Entity Recognition

1 code implementation IJCNLP 2019 Shiyuan Xiao, Yuanxin Ouyang, Wenge Rong, Jianxin Yang, Zhang Xiong

The segmentation problem is one of the fundamental challenges associated with name entity recognition (NER) tasks that aim to reduce the boundary error when detecting a sequence of entity words.

named-entity-recognition Named Entity Recognition +3

AlphaStock: A Buying-Winners-and-Selling-Losers Investment Strategy using Interpretable Deep Reinforcement Attention Networks

no code implementations24 Jul 2019 Jingyuan Wang, Yang Zhang, Ke Tang, Junjie Wu, Zhang Xiong

Recent years have witnessed the successful marriage of finance innovations and AI techniques in various finance applications including quantitative trading (QT).

Deep Attention reinforcement-learning +2

Sequential Attention with Keyword Mask Model for Community-based Question Answering

1 code implementation NAACL 2019 Jianxin Yang, Wenge Rong, Libin Shi, Zhang Xiong

So the QA pairs capture features and information from both question text and answer text, interacting and improving vector representations iteratively through hops.

Answer Selection

Understanding Urban Dynamics via Context-aware Tensor Factorization with Neighboring Regularization

no code implementations25 Apr 2019 Jingyuan Wang, Junjie Wu, Ze Wang, Fei Gao, Zhang Xiong

In this paper, we propose a Neighbor-Regularized and context-aware Non-negative Tensor Factorization model (NR-cNTF) to discover interpretable urban dynamics from urban heterogeneous data.

Traffic Prediction

Word Embedding based Correlation Model for Question/Answer Matching

no code implementations15 Nov 2015 Yikang Shen, Wenge Rong, Nan Jiang, Baolin Peng, Jie Tang, Zhang Xiong

With the development of community based question answering (Q&A) services, a large scale of Q&A archives have been accumulated and are an important information and knowledge resource on the web.

Question Answering Translation

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