Publications

Result Diversification for Legal Case Retrieval

Ruizhe Zhang, Qingyao Ai, Yueyue Wu, Yixiao Ma, Yiqun Liu

Annual International ACM SIGIR Conference on Research and Development in Information Retrieval in the Asia Pacific Region · 26 Nov 2023

Chuweb21D: A Deduped English Document Collection for Web Search Tasks

Zhumin Chu, Tetsuya Sakai, Qingyao Ai, Yiqun Liu

Annual International ACM SIGIR Conference on Research and Development in Information Retrieval in the Asia Pacific Region · 26 Nov 2023

Vertical Allocation-based Fair Exposure Amortizing in Ranking

Tao Yang, Zhichao Xu, Qingyao Ai

Annual International ACM SIGIR Conference on Research and Development in Information Retrieval in the Asia Pacific Region · 26 Nov 2023

Language Generation from Human Brain Activities

Ziyi Ye, Qingyao Ai, Yiqun Liu, Min Zhang, Christina Lioma, Tuukka Ruotsalo

arXiv preprint arXiv:2311.09889 · 16 Nov 2023

Caseformer: Pre-training for Legal Case Retrieval

Weihang Su, Qingyao Ai, Yueyue Wu, Yixiao Ma, Haitao Li, Yiqun Liu

arXiv preprint arXiv:2311.00333 · 01 Nov 2023

LeCaRDv2: A Large-Scale Chinese Legal Case Retrieval Dataset

Haitao Li, Yunqiu Shao, Yueyue Wu, Qingyao Ai, Yixiao Ma, Yiqun Liu

arXiv preprint arXiv:2310.17609 · 26 Oct 2023

I^ 3 Retriever: Incorporating Implicit Interaction in Pre-trained Language Models for Passage Retrieval

Qian Dong, Yiding Liu, Qingyao Ai, Haitao Li, Shuaiqiang Wang, Yiqun Liu, Dawei Yin, Shaoping Ma

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management · 21 Oct 2023

Understanding User Immersion in Online Short Video Interaction

Zhiyu He, Shaorun Zhang, Peijie Sun, Jiayu Li, Xiaohui Xie, Min Zhang, Yiqun Liu

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management · 21 Oct 2023

Leveraging Event Schema to Ask Clarifying Questions for Conversational Legal Case Retrieval

Bulou Liu, Yiran Hu, Qingyao Ai, Yiqun Liu, Yueyue Wu, Chenliang Li, Weixing Shen

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management · 21 Oct 2023

Investigating the Influence of Legal Case Retrieval Systems on Users' Decision Process

Beining Wang, Ruizhe Zhang, Yueyue Wu, Qingyao Ai, Min Zhang, Yiqun Liu

arXiv preprint arXiv:2310.04735 · 07 Oct 2023

Aligning the Capabilities of Large Language Models with the Context of Information Retrieval via Contrastive Feedback

Qian Dong, Yiding Liu, Qingyao Ai, Zhijing Wu, Haitao Li, Yiqun Liu, Shuaiqiang Wang, Dawei Yin, Shaoping Ma

arXiv preprint arXiv:2309.17078 · 29 Sep 2023

GNN4EEG: A Benchmark and Toolkit for Electroencephalography Classification with Graph Neural Network

Kaiyuan Zhang, Ziyi Ye, Qingyao Ai, Xiaohui Xie, Yiqun Liu

arXiv preprint arXiv:2309.15515 · 27 Sep 2023

Two-sided Calibration for Quality-aware Responsible Recommendation

Chenyang Wang, Yankai Liu, Yuanqing Yu, Weizhi Ma, Min Zhang, Yiqun Liu, Haitao Zeng, Junlan Feng, Chao Deng

Proceedings of the 17th ACM Conference on Recommender Systems · 14 Sep 2023

Epidemiological research on rare diseases using large-scale online search queries and reported case data

Lei Zhang, Ye Jin, Jiayu Li, Zhiyu He, Dingding Zhang, Min Zhang, Shuyang Zhang

Orphanet Journal of Rare Diseases · 09 Aug 2023

Unbiased Delayed Feedback Label Correction for Conversion Rate Prediction

Yifan Wang, Peijie Sun, Min Zhang, Qinglin Jia, Jingjie Li, Shaoping Ma

Proceedings of the 29th ACM SIGKDD Conference on Knowledge Discovery and Data Mining · 06 Aug 2023

An intent taxonomy of legal case retrieval

Yunqiu Shao, Haitao Li, Yueyue Wu, Yiqun Liu, Qingyao Ai, Jiaxin Mao, Yixiao Ma, Shaoping Ma

ACM Transactions on Information Systems · 25 Jul 2023

Measuring Item Global Residual Value for Fair Recommendation

Jiayin Wang, Weizhi Ma, Chumeng Jiang, Min Zhang, Yuan Zhang, Biao Li, Peng Jiang

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval · 19 Jul 2023

Behavior Modeling for Point of Interest Search

Haitian Chen, Qingyao Ai, Zhijing Wu, Zhihong Wang, Yiqun Liu, Min Zhang, Shaoping Ma, Juan Hu, Naiqiang Tan, Hua Chai

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval · 19 Jul 2023

T2Ranking: A Large-scale Chinese Benchmark for Passage Ranking

Xiaohui Xie, Qian Dong, Bingning Wang, Feiyang Lv, Ting Yao, Weinan Gan, Zhijing Wu, Xiangsheng Li, Haitao Li, Yiqun Liu, Jin Ma

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval · 18 Jul 2023

SAILER: Structure-aware Pre-trained Language Model for Legal Case Retrieval

Haitao Li, Qingyao Ai, Jia Chen, Qian Dong, Yueyue Wu, Yiqun Liu, Chong Chen, Qi Tian

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval · 18 Jul 2023

Constructing Tree-based Index for Efficient and Effective Dense Retrieval

Haitao Li, Qingyao Ai, Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Zheng Liu, Zhao Cao

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval · 18 Jul 2023

THUIR2 at NTCIR-16 Session Search (SS) Task

Weihang Su, Xiangsheng Li, Yiqun Liu, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2307.00250 · 01 Jul 2023

Method, apparatus, electronic device, and storage medium for web search

Yiqun Liu, Xuesong Chen, Xiaohui Xie, Ziyi Ye, ZHU Shuqi, Weihang Su, Xiaorong Gao, Yike Sun, Min Zhang, Shaoping Ma

US · 01 Jun 2023

Mitigating Exploitation Bias in Learning to Rank with an Uncertainty-aware Empirical Bayes Approach

Tao Yang, Cuize Han, Chen Luo, Parth Gupta, Jeff M Phillips, Qingyao Ai

arXiv preprint arXiv:2305.16606 · 26 May 2023

FARA: Future-aware Ranking Algorithm for Fairness Optimization

Tao Yang, Zhichao Xu, Zhenduo Wang, Qingyao Ai

arXiv preprint arXiv:2305.16637 · 26 May 2023

Unconfounded Propensity Estimation for Unbiased Ranking

Dan Luo, Lixin Zou, Qingyao Ai, Zhiyu Chen, Chenliang Li, Dawei Yin, Brian D Davison

arXiv preprint arXiv:2305.09918 · 17 May 2023

THUIR@ COLIEE 2023: Incorporating Structural Knowledge into Pre-trained Language Models for Legal Case Retrieval

Haitao Li, Weihang Su, Changyue Wang, Yueyue Wu, Qingyao Ai, Yiqun Liu

arXiv preprint arXiv:2305.06812 · 11 May 2023

THUIR@ COLIEE 2023: More Parameters and Legal Knowledge for Legal Case Entailment

Haitao Li, Changyue Wang, Weihang Su, Yueyue Wu, Qingyao Ai, Yiqun Liu

arXiv preprint arXiv:2305.06817 · 11 May 2023

CaseEncoder: A Knowledge-enhanced Pre-trained Model for Legal Case Encoding

Yixiao Ma, Yueyue Wu, Weihang Su, Qingyao Ai, Yiqun Liu

arXiv preprint arXiv:2305.05393 · 09 May 2023

Zero-shot Clarifying Question Generation for Conversational Search

Zhenduo Wang, Yuancheng Tu, Corby Rosset, Nick Craswell, Ming Wu, Qingyao Ai

Proceedings of the ACM Web Conference 2023 · 30 Apr 2023

Automatic Feature Selection By One-Shot Neural Architecture Search In Recommendation Systems

He Wei, Yuekui Yang, Haiyang Wu, Yangyang Tang, Meixi Liu, Jianfeng Li

Proceedings of the ACM Web Conference 2023 · 30 Apr 2023

Estimating Rare Disease Incidences With Large-scale Internet Search Data: Development and Evaluation of a Two-step Machine Learning Method

Jiayu Li, Zhiyu He, Min Zhang, Weizhi Ma, Ye Jin, Lei Zhang, Shuyang Zhang, Yiqun Liu, Shaoping Ma

JMIR Infodemiology · 28 Apr 2023

THUIR at WSDM Cup 2023 Task 1: Unbiased Learning to Rank

Jia Chen, Haitao Li, Weihang Su, Qingyao Ai, Yiqun Liu

arXiv preprint arXiv:2304.12650 · 25 Apr 2023

An In-depth Investigation of User Response Simulation for Conversational Search

Zhenduo Wang, Zhichao Xu, Qingyao Ai, Vivek Srikumar

arXiv preprint arXiv:2304.07944 · 17 Apr 2023

Reward-free Policy Imitation Learning for Conversational Search

Zhenduo Wang, Zhichao Xu, Qingyao Ai

arXiv preprint arXiv:2304.07988 · 17 Apr 2023

Metric-agnostic Ranking Optimization

Qingyao Ai, Xuanhui Wang, Michael Bendersky

arXiv preprint arXiv:2304.08062 · 17 Apr 2023

Intent-aware Ranking Ensemble for Personalized Recommendation

Jiayu Li, Peijie Sun, Zhefan Wang, Weizhi Ma, Yangkun Li, Min Zhang, Zhoutian Feng, Daiyue Xue

arXiv preprint arXiv:2304.07450 · 15 Apr 2023

Investigating Conversational Agent Action in Legal Case Retrieval

Bulou Liu, Yiran Hu, Yueyue Wu, Yiqun Liu, Fan Zhang, Chenliang Li, Min Zhang, Shaoping Ma, Weixing Shen

European Conference on Information Retrieval · 17 Mar 2023

Towards Better Web Search Performance: Pre-training, Fine-tuning and Learning to Rank

Haitao Li, Jia Chen, Weihang Su, Qingyao Ai, Yiqun Liu

arXiv preprint arXiv:2303.04710 · 28 Feb 2023

Model-based unbiased learning to rank

Dan Luo, Lixin Zou, Qingyao Ai, Zhiyu Chen, Dawei Yin, Brian D Davison

Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining · 27 Feb 2023

Marginal-Certainty-aware Fair Ranking Algorithm

Tao Yang, Zhichao Xu, Zhenduo Wang, Anh Tran, Qingyao Ai

Proceedings of the Sixteenth ACM International Conference on Web Search and Data Mining · 27 Feb 2023

Revisiting negative sampling vs. non-sampling in implicit recommendation

Chong Chen, Weizhi Ma, Min Zhang, Chenyang Wang, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems · 25 Feb 2023

A survey on the fairness of recommender systems

Yifan Wang, Weizhi Ma, Min Zhang, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems · 07 Feb 2023

Diverse legal case search

Ruizhe Zhang, Qingyao Ai, Yueyue Wu, Yixiao Ma, Yiqun Liu

arXiv preprint arXiv:2301.12504 · 29 Jan 2023

Counterfactual Editing for Search Result Explanation

Zhichao Xu, Hemank Lamba, Qingyao Ai, Joel Tetreault, Alex Jaimes

arXiv preprint arXiv:2301.10389 · 25 Jan 2023

Sequential recommendation with multiple contrast signals

Chenyang Wang, Weizhi Ma, Chong Chen, Min Zhang, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems · 09 Jan 2023

Information Retrieval Meets Large Language Models: A Strategic Report from Chinese IR Community

Qingyao Ai, Ting Bai, Zhao Cao, Yi Chang, Jiawei Chen, Zhumin Chen, Zhiyong Cheng, Shoubin Dong, Zhicheng Dou, Fuli Feng, Shen Gao, Jiafeng Guo, Xiangnan He, Yanyan Lan, Chenliang Li, Yiqun Liu, Ziyu Lyu, Weizhi Ma, Jun Ma, Zhaochun Ren, Pengjie Ren, Zhiqiang Wang, Mingwen Wang, Ji-Rong Wen, Le Wu, Xin Xin, Jun Xu, Dawei Yin, Peng Zhang, Fan Zhang, Weinan Zhang, Min Zhang, Xiaofei Zhu

AI Open · 01 Jan 2023

Investigating Conversational Agent Action in Legal Case Retrieval

Bulou Liu, Yiran Hu, Yueyue Wu, Yiqun Liu, Fan Zhang, Chenliang Li, Min Zhang, Shaoping Ma, Weixing Shen

Lecture Notes in Computer Science · 01 Jan 2023

A Reusable Model-agnostic Framework for Faithfully Explainable Recommendation and System Scrutability

Zhichao Xu, Hansi Zeng, Juntao Tan, Zuohui Fu, Yongfeng Zhang, Qingyao Ai

ACM Transactions on Information Systems · 01 Jan 2023

Incorporating Structural Information into Legal Case Retrieval

Yixiao Ma, Yueyue Wu, Qingyao Ai, Yiqun Liu, Yunqiu Shao, Min Zhang, Shaoping Ma

ACM Transactions on Information Systems · 01 Jan 2023

User Perception of Recommendation Explanation: Are Your Explanations What Users Need?

Hongyu Lu, Weizhi Ma, Yifan Wang, Min Zhang, Xiang Wang, Yiqun Liu, Tat-Seng Chua, Shaoping Ma

ACM Transactions on Information Systems · 17 Nov 2022

Understanding Relevance Judgments in Legal Case Retrieval

Yunqiu Shao, Yueyue Wu, Yiqun Liu, Jiaxin Mao, Shaoping Ma

ACM Transactions on Information Systems · 28 Oct 2022

Hard Negatives or False Negatives: Correcting Pooling Bias in Training Neural Ranking Models

Yinqiong Cai, Jiafeng Guo, Yixing Fan, Qingyao Ai, Ruqing Zhang, Xueqi Cheng

Proceedings of the 31st ACM International Conference on Information & Knowledge Management · 17 Oct 2022

Target Interest Distillation for Multi-Interest Recommendation

Chenyang Wang, Zhefan Wang, Yankai Liu, Yang Ge, Weizhi Ma, Min Zhang, Yiqun Liu, Junlan Feng, Chao Deng, Shaoping Ma

Proceedings of the 31st ACM International Conference on Information & Knowledge Management · 17 Oct 2022

Evaluating Interpolation and Extrapolation Performance of Neural Retrieval Models

Jingtao Zhan, Xiaohui Xie, Jiaxin Mao, Yiqun Liu, Jiafeng Guo, Min Zhang, Shaoping Ma

Proceedings of the 31st ACM International Conference on Information & Knowledge Management · 17 Oct 2022

Brain Topography Adaptive Network for Satisfaction Modeling in Interactive Information Access System

Ziyi Ye, Xiaohui Xie, Yiqun Liu, Zhihong Wang, Xuesong Chen, Min Zhang, Shaoping Ma

Proceedings of the 30th ACM International Conference on Multimedia · 10 Oct 2022

Joint Optimization of Multi-vector Representation with Product Quantization

Yan Fang, Jingtao Zhan, Yiqun Liu, Jiaxin Mao, Min Zhang, Shaoping Ma

CCF International Conference on Natural Language Processing and Chinese Computing · 24 Sep 2022

Enhance Performance of Ad-hoc Search via Prompt Learning

Shenghao Yang, Yiqun Liu, Xiaohui Xie, Min Zhang, Shaoping Ma

China Conference on Information Retrieval · 16 Sep 2022

Towards Ubiquitous Personalized Music Recommendation with Smart Bracelets

Jiayu Li, Zhiyu He, Yumeng Cui, Chenyang Wang, Chong Chen, Chun Yu, Min Zhang, Yiqun Liu, Shaoping Ma

Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies · 07 Sep 2022

Query generation and buffer mechanism: Towards a better conversational agent for legal case retrieval

Bulou Liu, Yueyue Wu, Fan Zhang, Yiqun Liu, Zhihong Wang, Chenliang Li, Min Zhang, Shaoping Ma

Information Processing & Management · 01 Sep 2022

Reinforcement Learning to Rank with Coarse-grained Labels

Zhichao Xu, Anh Tran, Tao Yang, Qingyao Ai

arXiv preprint arXiv:2208.07563 · 16 Aug 2022

Make Fairness More Fair: Fair Item Utility Estimation and Exposure Re-Distribution

Jiayin Wang, Weizhi Ma, Jiayu Li, Hongyu Lu, Min Zhang, Biao Li, Yiqun Liu, Peng Jiang, Shaoping Ma

Proceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining · 14 Aug 2022

Towards representation alignment and uniformity in collaborative filtering

Chenyang Wang, Yuanqing Yu, Weizhi Ma, Min Zhang, Chong Chen, Yiqun Liu, Shaoping Ma

Proceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining · 14 Aug 2022

Make Fairness More Fair

Jiayin Wang, Weizhi Ma, Jiayu Li, Hongyu Lu, Min Zhang, Biao Li, Yiqun Liu, Peng Jiang, Shaoping Ma

Proceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining · 14 Aug 2022

Disentangled modeling of domain and relevance for adaptable dense retrieval

Jingtao Zhan, Qingyao Ai, Yiqun Liu, Jiaxin Mao, Xiaohui Xie, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2208.05753 · 11 Aug 2022

基于文档级与查询级段落累积收益的文档排序方法

吴之璟，刘奕群，毛佳昕，张敏，马少平

计算机科学技术学报 · 25 Jul 2022

Can clicks be both labels and features? Unbiased Behavior Feature Collection and Uncertainty-aware Learning to Rank

Tao Yang, Chen Luo, Hanqing Lu, Parth Gupta, Bing Yin, Qingyao Ai

Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval · 06 Jul 2022

Axiomatically Regularized Pre-training for Ad hoc Search

Jia Chen, Yiqun Liu, Yan Fang, Jiaxin Mao, Hui Fang, Shenghao Yang, Xiaohui Xie, Min Zhang, Shaoping Ma

Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval · 06 Jul 2022

Why Don't You Click: Understanding Non-Click Results in Web Search with Brain Signals

Ziyi Ye, Xiaohui Xie, Yiqun Liu, Zhihong Wang, Xuancheng Li, Jiaji Li, Xuesong Chen, Min Zhang, Shaoping Ma

Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval · 06 Jul 2022

Incorporating Retrieval Information into the Truncation of Ranking Lists for Better Legal Search

Yixiao Ma, Qingyao Ai, Yueyue Wu, Yunqiu Shao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval · 06 Jul 2022

Leveraging Document-Level and Query-Level Passage Cumulative Gain for Document Ranking

Zhi-Jing Wu, Yi-Qun Liu, Jia-Xin Mao, Min Zhang, Shao-Ping Ma

Journal of Computer Science and Technology · 01 Jul 2022

Learning to Rank Rationales for Explainable Recommendation

Zhichao Xu, Yi Han, Tao Yang, Anh Tran, Qingyao Ai

arXiv preprint arXiv:2206.05368 · 10 Jun 2022

Evaluating extrapolation performance of dense retrieval

Jingtao Zhan, Xiaohui Xie, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2204.11447 · 25 Apr 2022

Explainable neural rule learning

Shaoyun Shi, Yuexiang Xie, Zhen Wang, Bolin Ding, Yaliang Li, Min Zhang

Proceedings of the ACM Web Conference 2022 · 25 Apr 2022

Recommendation unlearning

Chong Chen, Fei Sun, Min Zhang, Bolin Ding

Proceedings of the ACM Web Conference 2022 · 25 Apr 2022

Global or local: Constructing personalized click models for Web search

Junqi Zhang, Yiqun Liu, Jiaxin Mao, Xiaohui Xie, Min Zhang, Shaoping Ma, Qi Tian

Proceedings of the ACM Web Conference 2022 · 25 Apr 2022

Towards a Better Understanding of Human Reading Comprehension with Brain Signals

Ziyi Ye, Xiaohui Xie, Yiqun Liu, Zhihong Wang, Xuesong Chen, Min Zhang, Shaoping Ma

Proceedings of the ACM Web Conference 2022 · 25 Apr 2022

Effective Exposure Amortizing for Fair Top-k Recommendation

Tao Yang, Zhichao Xu, Qingyao Ai

arXiv preprint arXiv:2204.03046 · 06 Apr 2022

ConvSearch: A open-domain conversational search behavior dataset

Zhumin Chu, Zhihong Wang, Yiqun Liu, Yingye Huang, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2204.02659 · 06 Apr 2022

Simulating and modeling the risk of conversational search

Zhenduo Wang, Qingyao Ai

ACM Transactions on Information Systems (TOIS) · 24 Mar 2022

Liferec: A mobile app for lifelog recording and ubiquitous recommendation

Jiayu Li, Hantian Zhang, Zhiyu He, Rongwu Xu, Pingfei Wu, Min Zhang, Yiqun Liu, Shaoping Ma

Proceedings of the 2022 Conference on Human Information Interaction and Retrieval · 14 Mar 2022

Investigating human reading behavior during sentiment judgment

Xuesong Chen, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

International Journal of Machine Learning and Cybernetics · 06 Mar 2022

Contextualized fairness for recommender systems in premium scenarios

Yangkun Li, Mohamed-Laid Hedia, Weizhi Ma, Hongyu Lu, Min Zhang, Yiqun Liu, Shaoping Ma

Big Data Research · 28 Feb 2022

User Behavior Simulation for Search Result Re-ranking

Junqi Zhang, Yiqun Liu, Jiaxin Mao, Weizhi Ma, Jiazheng Xu, Shaoping Ma, Qi Tian

ACM Transactions on Information Systems · 14 Feb 2022

Learning discrete representations via constrained clustering for effective and efficient dense retrieval

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Jiafeng Guo, Min Zhang, Shaoping Ma

Proceedings of the Fifteenth ACM International Conference on Web Search and Data Mining · 11 Feb 2022

A cooperative neural information retrieval pipeline with knowledge enhanced automatic query reformulation

Xiangsheng Li, Jiaxin Mao, Weizhi Ma, Zhijing Wu, Yiqun Liu, Min Zhang, Shaoping Ma, Zhaowei Wang, Xiuqiang He

Proceedings of the Fifteenth ACM International Conference on Web Search and Data Mining · 11 Feb 2022

Web Search via an Efficient and Effective Brain-Machine Interface

Xuesong Chen, Ziyi Ye, Xiaohui Xie, Yiqun Liu, Xiaorong Gao, Weihang Su, Shuqi Zhu, Yike Sun, Min Zhang, Shaoping Ma

Proceedings of the Fifteenth ACM International Conference on Web Search and Data Mining · 11 Feb 2022

From linear to non-linear: investigating the effects of right-rail results on complex SERPs

Yunqiu Shao, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Advances in Computational Intelligence · 10 Jan 2022

Overview of the NTCIR-16 unbiased learning to rank evaluation (ULTRE) task

Yurou Zhao, Zechun Niu, Feng Wang, Jiaxin Mao, Qingyao Ai, Tao Yang, Junqi Zhang, Yiqun Liu

Proceedings of the 16th NTCIR Conference on Evaluation of Information Access Technologies · 01 Jan 2022

THUIR-LL at the NTCIR-16 Lifelog-4 Task: Enhanced Interactive Lifelog Search Engine

Zhiyu He, Jiayu Li, Wenjing Wu, Min Zhang, Yiqun Liu, Shaoping Ma

With the development of digital information storage technology and portable sensing devices, users are gradually accustomed to recording their personal life (ie, lifelog) in various digital ways. Therefore, the retrieval of lifelogging has become a new and essential research topic in related fields. Unlike traditional search engines, in lifelog, text and other data automatically recorded in real-time by sensors bring challenges to data arrangement and search. As the dataset is highly personalized, interactions and feedback from users should also be considered in the search engine. This paper describes our interactive approach for the NTCIR-16 Lifelog-4 Task. The task is to search relevant lifelog images from the users’ daily lifelog given an event topic. A significant challenge is how to bridge the semantic gap between lifelog images and event-level topics. We propose a framework to address this problem with a multi-functional and flexible feedback mechanism and result presentation for interaction in a search engine. Besides, we propose a query text parsing procedure that parses the long query text into keywords and fills the fields automatically. We analyzed the interactive lifelog search engine with 12 topics constructed by ourselves according to LSC’18 development topics. Finally, we achieved an official result of 741 at the NTCIR-16 Lifelog-4 task in terms of RelRet score over 48 topics. · 01 Jan 2022

THUIR at the NTCIR-16 WWW-4 Task

Shenghao Yang, Haitao Li, Zhumin Chu, Jingtao Zhan, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of NTCIR-16. to appear · 01 Jan 2022

A Survey on Dropout Methods and Experimental Verification in Recommendation

Yangkun Li, Weizhi Ma, Chong Chen, Min Zhang, Yiqun Liu, Shaoping Ma, Yuekui Yang

arXiv · 01 Jan 2022

Report on the 15th round of NII testbeds and community for information access research (NTCIR-15)

Makoto P. Kato, Yiqun Liu, Noriko Kando, Charles L. A. Clarke

ACM SIGIR Forum · 01 Dec 2021

Interpreting dense retrieval as mixture of topics

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Jiafeng Guo, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2111.13957 · 27 Nov 2021

细节决定成败: 推荐系统实验反思与讨论

施韶韵，王晨阳，马为之，张敏，刘奕群，马少平

信息安全学报 · 29 Oct 2021

WG4Rec

Shaoyun Shi, Weizhi Ma, Zhen Wang, Min Zhang, Kun Fang, Jingfang Xu, Yiqun Liu, Shaoping Ma

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

ULTRA: an unbiased learning to rank algorithm toolbox

Anh Tran, Tao Yang, Qingyao Ai

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

Model-agnostic vs. model-intrinsic interpretability for explainable product search

Qingyao Ai, Lakshmi Narayanan. R

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

Jointly Optimizing Query Encoder and Product Quantization to Improve Retrieval Performance

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Jiafeng Guo, Min Zhang, Shaoping Ma

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

Incorporating Query Reformulating Behavior into Web Search Evaluation

Jia Chen, Yiqun Liu, Jiaxin Mao, Fan Zhang, Tetsuya Sakai, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

Evaluating Relevance Judgments with Pairwise Discriminative Power

Zhumin Chu, Jiaxin Mao, Fan Zhang, Yiqun Liu, Tetsuya Sakai, Min Zhang, Shaoping Ma

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

ReChorus: Comprehensive, Efficient, Flexible, and Lightweight Framework for Recommendation Algorithms

王晨阳，任一，马为之，张敏，刘奕群，马少平

Journal of Software · 26 Oct 2021

WG4Rec: Modeling textual content with word graph for news recommendation

Shaoyun Shi, Weizhi Ma, Zhen Wang, Min Zhang, Kun Fang, Jingfang Xu, Yiqun Liu, Shaoping Ma

Proceedings of the 30th ACM International Conference on Information & Knowledge Management · 26 Oct 2021

Legalgnn: Legal information enhanced graph neural network for recommendation

Jun Yang, Weizhi Ma, Min Zhang, Xin Zhou, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems (TOIS) · 27 Sep 2021

Why Don't You Click: Neural Correlates of Non-Click Behaviors in Web Search

Ziyi Ye, Xiaohui Xie, Yiqun Liu, Zhihong Wang, Xuancheng Li, Jiaji Li, Xuesong Chen, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2109.10560 · 22 Sep 2021

Understanding the role of human-inspired heuristics for retrieval models

Xiangsheng Li, Yiqun Liu, Jiaxin Mao

Frontiers of Computer Science · 11 Sep 2021

结合用户长短期兴趣的深度强化学习推荐方法

阎世宏，马为之，张敏，刘奕群，马少平

中文信息学报 · 31 Aug 2021

3rd International Workshop on Deep Learning Practice for High-Dimensional Sparse Data with KDD 2021

Xiaoqiang Zhu, Kuang-chih Lee, Guorui Zhou, Biye Jiang, Zhe Wang, Ruiming Tang, Kan Ren, Qingyao Ai, Weinan Zhang

Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery & Data Mining · 14 Aug 2021

A Difficulty-Aware Framework for Churn Prediction and Intervention in Games

Jiayu Li, Hongyu Lu, Chenyang Wang, Weizhi Ma, Min Zhang, Xiangyu Zhao, Wei Qi, Yiqun Liu, Shaoping Ma

Proceedings of the 27th ACM SIGKDD Conference on Knowledge Discovery & Data Mining · 14 Aug 2021

Know yourself: physical and psychological self-awareness with lifelog

Jiayu Li, Weizhi Ma, Min Zhang, Pengyu Wang, Yiqun Liu, Shaoping Ma

Frontiers in Digital Health · 11 Aug 2021

Understanding Human Reading Comprehension with Brain Signals

Ziyi Ye, Xiaohui Xie, Yiqun Liu, Zhihong Wang, Xuesong Chen, Min Zhang, Shaoping Ma

arXiv e-prints · 01 Aug 2021

A Hybrid Framework for Session Context Modeling

Jia Chen, Jiaxin Mao, Yiqun Liu, Ziyi Ye, Weizhi Ma, Chao Wang, Min Zhang, Shaoping Ma

ACM Transactions on Information Systems · 26 Jul 2021

Privacy-aware remote information retrieval user experiments logging tool

Hanyu Li, Hongyu Lu, Songhao Huang, Weizhi Ma, Min Zhang, Yiqun Liu, Shaoping Ma

Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval · 11 Jul 2021

Investigating user behavior in legal case retrieval

Yunqiu Shao, Yueyue Wu, Yiqun Liu, Jiaxin Mao, Min Zhang, Shaoping Ma

Proceedings of the 44th international ACM SIGIR conference on research and development in information retrieval · 11 Jul 2021

Optimizing dense retrieval model training with hard negatives

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Jiafeng Guo, Min Zhang, Shaoping Ma

Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval · 11 Jul 2021

LeCaRD: a legal case retrieval dataset for Chinese law system

Yixiao Ma, Yunqiu Shao, Yueyue Wu, Yiqun Liu, Ruizhe Zhang, Min Zhang, Shaoping Ma

Proceedings of the 44th international ACM SIGIR conference on research and development in information retrieval · 11 Jul 2021

Investigating session search behavior with knowledge graphs

Xiangsheng Li, Maarten de Rijke, Yiqun Liu, Jiaxin Mao, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval · 11 Jul 2021

Conversational vs traditional: Comparing search behavior and outcome in legal case retrieval

Bulou Liu, Yueyue Wu, Yiqun Liu, Fan Zhang, Yunqiu Shao, Chenliang Li, Min Zhang, Shaoping Ma

Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval · 11 Jul 2021

Standing in Your Shoes: External Assessments for Personalized Recommender Systems

Hongyu Lu, Weizhi Ma, Min Zhang, Maarten de Rijke, Yiqun Liu, Shaoping Ma

Proceedings of the 44th International ACM SIGIR Conference on Research and Development in Information Retrieval · 11 Jul 2021

A Large-Scale Rich Context Query and Recommendation Dataset in Online Knowledge-Sharing

Bin Hao, Min Zhang, Weizhi Ma, Shaoyun Shi, Xinxing Yu, Houzhi Shan, Yiqun Liu, Shaoping Ma

arXiv preprint arXiv:2106.06467 · 11 Jun 2021

Graph heterogeneous multi-relational recommendation

Chong Chen, Weizhi Ma, Min Zhang, Zhaowei Wang, Xiuqiang He, Chenyang Wang, Yiqun Liu, Shaoping Ma

Proceedings of the AAAI Conference on Artificial Intelligence · 18 May 2021

Diversify or Not: Dynamic Diversification for Personalized Recommendation

Bin Hao, Min Zhang, Cheng Guo, Weizhi Ma, Yiqun Liu, Shaoping Ma

Pacific-Asia Conference on Knowledge Discovery and Data Mining · 08 May 2021

Toward Dynamic User Intention

Chenyang Wang, Weizhi Ma, Min Zhang, Chong Chen, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems · 30 Apr 2021

Towards a better understanding of query reformulation behavior in web search

Jia Chen, Jiaxin Mao, Yiqun Liu, Fan Zhang, Min Zhang, Shaoping Ma

Proceedings of the web conference 2021 · 19 Apr 2021

Constructing a comparison-based click model for web search

Ruizhe Zhang, Xiaohui Xie, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the Web Conference 2021 · 19 Apr 2021

Topic-enhanced knowledge-aware retrieval model for diverse relevance estimation

Xiangsheng Li, Jiaxin Mao, Weizhi Ma, Yiqun Liu, Min Zhang, Shaoping Ma, Zhaowei Wang, Xiuqiang He

Proceedings of the Web Conference 2021 · 19 Apr 2021

The 1st International Workshop on Machine Reasoning: International Machine Reasoning Conference (MRC 2021)

Yongfeng Zhang, Min Zhang, Hanxiong Chen, Xu Chen, Xianjie Chen, Chuang Gan, Tong Sun, Xin Luna Dong

Proceedings of the 14th ACM International Conference on Web Search and Data Mining · 08 Mar 2021

Temporal cross-effects in knowledge tracing

Chenyang Wang, Weizhi Ma, Min Zhang, Chuancheng Lv, Fengyuan Wan, Huijie Lin, Taoran Tang, Yiqun Liu, Shaoping Ma

Proceedings of the 14th ACM International Conference on Web Search and Data Mining · 08 Mar 2021

基于半监督学习的涉及未成年人案件文书识别方法.

杨圣豪，吴癑悦，毛佳昕，刘奕群，张敏，马少平

Journal of South China University of Technology (Natural Science Edition) · 01 Jan 2021

基于生活日志的情绪识别

王鹏宇，张敏，马为之，刘奕群，马少平

中文信息学报 · 01 Jan 2021

SogouQ: The First Large-Scale Test Collection with Click Streams Used in a Shared-Task Evaluation

Ruihua Song, Min Zhang, Cheng Luo, Tetsuya Sakai, Yiqun Liu, Zhicheng Dou

Evaluating Information Retrieval and Access Tasks: NTCIR's Legacy of Research Impact · 01 Jan 2021

Towards a Be er Understanding of ery Reformulation Behavior in Web Search

Jia Chen, Jiaxin Mao, Yiqun Liu, Fan Zhang, Min Zhang, Shaoping Ma

As queries submitted by users directly a ect search experiences, how to organize queries has always been a research focus in Web search studies. While search request becomes complex and exploratory, many search sessions contain more than a single query thus reformulation becomes a necessity. To help users better formulate their queries in these complex search tasks, modern search engines usually provide a series of reformulation entries on search engine result pages (SERPs), ie, query suggestions and related entities. However, few existing work have thoroughly studied why and how users perform query reformulations in these heterogeneous interfaces. Therefore, whether search engines provide sucient assistance for users in reformulating queries remains underinvestigated. To shed light on this research question, we conducted a eld study to analyze ne-grained user reformulation behaviors including reformulation type, entry, reason, and the inspiration source with various search intents. Di erent from existing e orts that rely on external assessors to make judgments, in the eld study we collect both implicit behavior signals and explicit user feedback information. Analysis results demonstrate that query reformulation behavior in Web search varies with the type of search tasks. We also found that the current query suggestion/related query recommendations provided by search engines do not o er enough help for users in complex search tasks. Based on the ndings in our eld study, we design a supervised learning framework to predict: 1) the reason behind each query reformulation, and 2) how users organize the reformulated query … · 01 Jan 2021

Retrieving legal cases from a large-scale candidate corpus

Yixiao Ma, Yunqiu Shao, Bulou Liu, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the Eighth International Competition on Legal Information Extraction/Entailment, COLIEE2021 · 01 Jan 2021

Modelling Dynamic Item Complementarity with Graph Neural Network for Recommendation

Yingwai Shiu, Weizhi Ma, Min Zhang, Yiqun Liu, Shaoping Ma

Information Retrieval: 27th China Conference, CCIR 2021, Dalian, China, October 29–31, 2021, Proceedings 27 · 01 Jan 2021

中国中文信息学会 2020 年 “钱伟长中文信息处理科学技术奖” 之——认知计算模型驱动的互联网搜索技术及其应用

刘奕群，王小川，张敏，陈炜鹏，马少平，许静芳，毛佳昕，王蟒，马为

中文信息学报 · 01 Jan 2021

信息化与智能化: 司法语境下的辨析

刘奕群，吴玥悦

中国应用法学 · 01 Jan 2021

TikTok 推荐算法

刘奕群，张敏

中国科学基金 · 01 Jan 2021

Toward dynamic user intention: Temporal evolutionary effects of item relations in sequential recommendation

Chenyang Wang, Weizhi Ma, Min Zhang, Chong Chen, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems (TOIS) · 31 Dec 2020

Thuir@ coliee-2020: Leveraging semantic understanding and exact matching for legal case retrieval and entailment

Yunqiu Shao, Bulou Liu, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2012.13102 · 24 Dec 2020

Curiosity-inspired Personalized Recommendation

Pranita Shrestha, Min Zhang, Yiqun Liu, Shaoping Ma

2020 IEEE/WIC/ACM International Joint Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT) · 14 Dec 2020

Challenges in designing a brain-machine search interface

Yiqun Liu, Jiaxin Mao, Xiaohui Xie, Min Zhang, Shaoping Ma

ACM SIGIR Forum · 01 Dec 2020

Learning to retrieve: How to train a dense retrieval model effectively and efficiently

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2010.10469 · 20 Oct 2020

An Empirical Study on Clarifying Question-Based Systems

Jie Zou, Evangelos Kanoulas, Yiqun Liu

Proceedings of the 29th ACM International Conference on Information & Knowledge Management · 19 Oct 2020

Neural Logic Reasoning

Shaoyun Shi, Hanxiong Chen, Weizhi Ma, Jiaxin Mao, Min Zhang, Yongfeng Zhang

Proceedings of the 29th ACM International Conference on Information & Knowledge Management · 19 Oct 2020

Learning Better Representations for Neural Information Retrieval with Graph Information

Xiangsheng Li, Maarten de Rijke, Yiqun Liu, Jiaxin Mao, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 29th ACM International Conference on Information & Knowledge Management · 19 Oct 2020

Incorporating knowledge and content information to boost news recommendation

Zhen Wang, Weizhi Ma, Min Zhang, Weipeng Chen, Jingfang Xu, Yiqun Liu, Shaoping Ma

CCF International Conference on Natural Language Processing and Chinese Computing · 02 Oct 2020

Negative feedback aware hybrid sequential neural recommendation model

Bin Hao, Min Zhang, Weizhi Ma, Shaoyun Shi, Xinxing Yu, Houzhi Shan, Yiqun Liu, Shaoping Ma

CCF International Conference on Natural Language Processing and Chinese Computing · 02 Oct 2020

Investigating COVID‐19‐Related query logs of Chinese search engine users

Ziyi Ye, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the Association for Information Science and Technology · 01 Oct 2020

Investigating COVID‐19‐Related query logs of Chinese search engine users

Ziyi Ye, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the Association for Information Science and Technology · 01 Oct 2020

Information retrieval: a view from the Chinese IR community

Zhumin Chen, Xueqi Cheng, Shoubin Dong, Zhicheng Dou, Jiafeng Guo, Xuanjing Huang, Yanyan Lan, Chenliang Li, Ru Li, Tie-Yan Liu, Yiqun Liu, Jun Ma, Bing Qin, Mingwen Wang, Jirong Wen, Jun Xu, Min Zhang, Peng Zhang, Qi Zhang

Frontiers of Computer Science · 29 Sep 2020

Improving Search Snippets in Context-Aware Web Search Scenarios

Jia Chen, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

China Conference on Information Retrieval · 10 Aug 2020

EARS 2020: The 3rd International Workshop on ExplainAble Recommendation and Search

Yongfeng Zhang, Xu Chen, Yi Zhang, Min Zhang, Chirag Shah

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Cascade or recency: Constructing better evaluation metrics for session search

Fan Zhang, Jiaxin Mao, Yiqun Liu, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 43rd international acm sigir conference on research and development in information retrieval · 25 Jul 2020

Make it a chorus: knowledge-and time-aware item modeling for sequential recommendation

Chenyang Wang, Min Zhang, Weizhi Ma, Yiqun Liu, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval · 25 Jul 2020

Beyond user embedding matrix: Learning to hash for modeling large-scale users in recommendation

Shaoyun Shi, Weizhi Ma, Min Zhang, Yongfeng Zhang, Xinxing Yu, Houzhi Shan, Yiqun Liu, Shaoping Ma

Proceedings of the 43rd international ACM SIGIR conference on research and development in information retrieval · 25 Jul 2020

Models versus satisfaction: Towards a better understanding of evaluation metrics

Fan Zhang, Jiaxin Mao, Yiqun Liu, Xiaohui Xie, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 43rd international acm sigir conference on research and development in information retrieval · 25 Jul 2020

An analysis of BERT in document ranking

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval · 25 Jul 2020

Investigating reading behavior in fine-grained relevance judgment

Zhijing Wu, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Make It a Chorus

Chenyang Wang, Min Zhang, Weizhi Ma, Yiqun Liu, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Jointly non-sampling learning for knowledge graph enhanced recommendation

Chong Chen, Min Zhang, Weizhi Ma, Yiqun Liu, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Preference-based evaluation metrics for web image search

Xiaohui Xie, Jiaxin Mao, Yiqun Liu, Maarten de Rijke, Haitian Chen, Min Zhang, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Models versus Satisfaction

Fan Zhang, Jiaxin Mao, Yiqun Liu, Xiaohui Xie, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Cascade or Recency

Fan Zhang, Jiaxin Mao, Yiqun Liu, Weizhi Ma, Min Zhang, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

Beyond User Embedding Matrix

Shaoyun Shi, Weizhi Ma, Min Zhang, Yongfeng Zhang, Xinxing Yu, Houzhi Shan, Yiqun Liu, Shaoping Ma

Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval · 25 Jul 2020

BERT-PLI: Modeling Paragraph-Level Interactions for Legal Case Retrieval.

Yunqiu Shao, Jiaxin Mao, Yiqun Liu, Weizhi Ma, Ken Satoh, Min Zhang, Shaoping Ma

IJCAI · 01 Jul 2020

BERT-PLI: Modeling Paragraph-Level Interactions for Legal Case Retrieval

Yunqiu Shao, Jiaxin Mao, Yiqun Liu, Weizhi Ma, Ken Satoh, Min Zhang, Shaoping Ma

Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence · 01 Jul 2020

Repbert: Contextualized text embeddings for first-stage retrieval

Jingtao Zhan, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

arXiv preprint arXiv:2006.15498 · 28 Jun 2020

Efficient Non-Sampling Factorization Machines for Optimal Context-Aware Recommendation

Chong Chen, Min Zhang, Weizhi Ma, Yiqun Liu, Shaoping Ma

Proceedings of The Web Conference 2020 · 19 Apr 2020

Leveraging Passage-level Cumulative Gain for Document Ranking

Zhijing Wu, Jiaxin Mao, Yiqun Liu, Jingtao Zhan, Yukun Zheng, Min Zhang, Shaoping Ma

Proceedings of The Web Conference 2020 · 19 Apr 2020

Efficient Heterogeneous Collaborative Filtering without Negative Sampling for Recommendation

Chong Chen, Min Zhang, Yongfeng Zhang, Weizhi Ma, Yiqun Liu, Shaoping Ma

Proceedings of the AAAI Conference on Artificial Intelligence · 03 Apr 2020

Efficient Neural Matrix Factorization without Sampling for Recommendation

Chong Chen, Min Zhang, Yongfeng Zhang, Yiqun Liu, Shaoping Ma

ACM Transactions on Information Systems · 18 Mar 2020

"Revisiting information retrieval tasks with user behavior models" by Yiqun Liu and Jiaxin Mao with Martin Vesely as coordinator

Yiqun Liu, Jiaxin Mao

ACM SIGWEB Newsletter · 13 Feb 2020

Investigating Examination Behavior in Mobile Search

Yukun Zheng, Jiaxin Mao, Yiqun Liu, Mark Sanderson, Min Zhang, Shaoping Ma

Proceedings of the 13th International Conference on Web Search and Data Mining · 20 Jan 2020

A Context-Aware Click Model for Web Search

Jia Chen, Jiaxin Mao, Yiqun Liu, Min Zhang, Shaoping Ma

Proceedings of the 13th International Conference on Web Search and Data Mining · 20 Jan 2020

User behavior modeling for Web search evaluation

Fan Zhang, Yiqun Liu, Jiaxin Mao, Min Zhang, Shaoping Ma

AI Open · 01 Jan 2020

An Efficient Adaptive Transfer Neural Network for Social-aware Recommendation

Chong Chen, Min Zhang, Chenyang Wang, Weizhi Ma, Minming Li, Yiqun Liu, Shaoping Ma

Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval · 18 Jul 2019

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