Search Results for author: Haoxuan Li

Found 22 papers, 4 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

Contrastive Balancing Representation Learning for Heterogeneous Dose-Response Curves Estimation

1 code implementation21 Mar 2024 Minqin Zhu, Anpeng Wu, Haoxuan Li, Ruoxuan Xiong, Bo Li, Xiaoqing Yang, Xuan Qin, Peng Zhen, Jiecheng Guo, Fei Wu, Kun Kuang

Estimating the individuals' potential response to varying treatment doses is crucial for decision-making in areas such as precision medicine and management science.

counterfactual Decision Making +2

Pareto-Optimal Estimation and Policy Learning on Short-term and Long-term Treatment Effects

no code implementations5 Mar 2024 Yingrong Wang, Anpeng Wu, Haoxuan Li, Weiming Liu, Qiaowei Miao, Ruoxuan Xiong, Fei Wu, Kun Kuang

This paper focuses on developing Pareto-optimal estimation and policy learning to identify the most effective treatment that maximizes the total reward from both short-term and long-term effects, which might conflict with each other.

Representation Learning

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

CounterCLR: Counterfactual Contrastive Learning with Non-random Missing Data in Recommendation

no code implementations8 Feb 2024 Jun Wang, Haoxuan Li, Chi Zhang, Dongxu Liang, Enyun Yu, Wenwu Ou, Wenjia Wang

Recommender systems are designed to learn user preferences from observed feedback and comprise many fundamental tasks, such as rating prediction and post-click conversion rate (pCVR) prediction.

Contrastive Learning counterfactual +3

FreDF: Learning to Forecast in Frequency Domain

no code implementations4 Feb 2024 Hao Wang, Licheng Pan, Zhichao Chen, Degui Yang, Sen Zhang, Yifei Yang, Xinggao Liu, Haoxuan Li, DaCheng Tao

Time series modeling is uniquely challenged by the presence of autocorrelation in both historical and label sequences.

Time Series

TransFR: Transferable Federated Recommendation with Pre-trained Language Models

no code implementations2 Feb 2024 Honglei Zhang, He Liu, Haoxuan Li, Yidong Li

To this end, we propose a transferable federated recommendation model with universal textual representations, TransFR, which delicately incorporates the general capabilities empowered by pre-trained language models and the personalized abilities by fine-tuning local private data.

Privacy Preserving

SceneTex: High-Quality Texture Synthesis for Indoor Scenes via Diffusion Priors

no code implementations28 Nov 2023 Dave Zhenyu Chen, Haoxuan Li, Hsin-Ying Lee, Sergey Tulyakov, Matthias Nießner

We propose SceneTex, a novel method for effectively generating high-quality and style-consistent textures for indoor scenes using depth-to-image diffusion priors.

Texture Synthesis

Hierarchical Topological Ordering with Conditional Independence Test for Limited Time Series

no code implementations16 Aug 2023 Anpeng Wu, Haoxuan Li, Kun Kuang, Keli Zhang, Fei Wu

Learning directed acyclic graphs (DAGs) to identify causal relations underlying observational data is crucial but also poses significant challenges.

Time Series

Pareto Invariant Representation Learning for Multimedia Recommendation

no code implementations9 Aug 2023 Shanshan Huang, Haoxuan Li, Qingsong Li, Chunyuan Zheng, Li Liu

Multimedia recommendation involves personalized ranking tasks, where multimedia content is usually represented using a generic encoder.

Multimedia recommendation Representation Learning

Your Negative May not Be True Negative: Boosting Image-Text Matching with False Negative Elimination

1 code implementation8 Aug 2023 Haoxuan Li, Yi Bin, Junrong Liao, Yang Yang, Heng Tao Shen

Most existing image-text matching methods adopt triplet loss as the optimization objective, and choosing a proper negative sample for the triplet of <anchor, positive, negative> is important for effectively training the model, e. g., hard negatives make the model learn efficiently and effectively.

Image-text matching Representation Learning +1

Unifying Two-Stream Encoders with Transformers for Cross-Modal Retrieval

1 code implementation8 Aug 2023 Yi Bin, Haoxuan Li, Yahui Xu, Xing Xu, Yang Yang, Heng Tao Shen

Specifically, on two key tasks, \textit{i. e.}, image-to-text and text-to-image retrieval, HAT achieves 7. 6\% and 16. 7\% relative score improvement of Recall@1 on MSCOCO, and 4. 4\% and 11. 6\% on Flickr30k respectively.

Cross-Modal Retrieval Image Retrieval +1

ConvFormer: Revisiting Transformer for Sequential User Modeling

no code implementations5 Aug 2023 Hao Wang, Jianxun Lian, Mingqi Wu, Haoxuan Li, Jiajun Fan, Wanyue Xu, Chaozhuo Li, Xing Xie

Sequential user modeling, a critical task in personalized recommender systems, focuses on predicting the next item a user would prefer, requiring a deep understanding of user behavior sequences.

Recommendation Systems

Balancing Unobserved Confounding with a Few Unbiased Ratings in Debiased Recommendations

no code implementations17 Apr 2023 Haoxuan Li, Yanghao Xiao, Chunyuan Zheng, Peng Wu

Recommender systems are seen as an effective tool to address information overload, but it is widely known that the presence of various biases makes direct training on large-scale observational data result in sub-optimal prediction performance.

Imputation Recommendation Systems

PheME: A deep ensemble framework for improving phenotype prediction from multi-modal data

no code implementations19 Mar 2023 Shenghan Zhang, Haoxuan Li, Ruixiang Tang, Sirui Ding, Laila Rasmy, Degui Zhi, Na Zou, Xia Hu

In this work, we present PheME, an Ensemble framework using Multi-modality data of structured EHRs and unstructured clinical notes for accurate Phenotype prediction.

Ensemble Learning

A Generalized Doubly Robust Learning Framework for Debiasing Post-Click Conversion Rate Prediction

no code implementations12 Nov 2022 Quanyu Dai, Haoxuan Li, Peng Wu, Zhenhua Dong, Xiao-Hua Zhou, Rui Zhang, Jie Sun

However, in this paper, by theoretically analyzing the bias, variance and generalization bounds of DR methods, we find that existing DR approaches may have poor generalization caused by inaccurate estimation of propensity scores and imputation errors, which often occur in practice.

Generalization Bounds Imputation +1

Model Predictive Robustness of Signal Temporal Logic Predicates

no code implementations16 Sep 2022 Yuanfei Lin, Haoxuan Li, Matthias Althoff

We evaluate our approach for the use case of autonomous driving with predicates used in formalized traffic rules on a recorded dataset, which highlights the advantage of our approach compared to traditional approaches in terms of precision.

Autonomous Driving

Multiple Robust Learning for Recommendation

no code implementations9 Jul 2022 Haoxuan Li, Quanyu Dai, Yuru Li, Yan Lyu, Zhenhua Dong, Xiao-Hua Zhou, Peng Wu

Doubly robust (DR) learning has been studied in many tasks in RS, with the advantage that unbiased learning can be achieved when either a single imputation or a single propensity model is accurate.

Imputation Recommendation Systems

StableDR: Stabilized Doubly Robust Learning for Recommendation on Data Missing Not at Random

no code implementations10 May 2022 Haoxuan Li, Chunyuan Zheng, Peng Wu

However, in this paper, we show that DR methods are unstable and have unbounded bias, variance, and generalization bounds to extremely small propensities.

Generalization Bounds Imputation +1

TDR-CL: Targeted Doubly Robust Collaborative Learning for Debiased Recommendations

no code implementations19 Mar 2022 Haoxuan Li, Yan Lyu, Chunyuan Zheng, Peng Wu

Bias is a common problem inherent in recommender systems, which is entangled with users' preferences and poses a great challenge to unbiased learning.

Imputation Recommendation Systems +1

On the Opportunity of Causal Learning in Recommendation Systems: Foundation, Estimation, Prediction and Challenges

no code implementations18 Jan 2022 Peng Wu, Haoxuan Li, yuhao deng, Wenjie Hu, Quanyu Dai, Zhenhua Dong, Jie Sun, Rui Zhang, Xiao-Hua Zhou

Recently, recommender system (RS) based on causal inference has gained much attention in the industrial community, as well as the states of the art performance in many prediction and debiasing tasks.

Causal Inference Recommendation Systems

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