I am now a fifth year Ph.D. student in THUIR, Department of Computer Science and Technology in Tsinghua University, Beijing, China. My supervisor is Prof. Min Zhang. My major research interests are about recommender system, user intent understanding, lifelogging, ubiquitous recommendation, and etc.
Education
| Year | Education |
|---|
| 08.2020-present | Ph.D. student, Department of Computer Science and Technology, Tsinghua University, China. |
| 09.2023-01.2024 | Visiting student, School of Computer Science and Engineering, Nanyang Technological University (NTU), Singapore. (Supervisor: Prof. Sun Aixin) |
| 09.2016-06.2020 | B.E., Department of Electronic Engineering, Tsinghua University, China. |
Publications
User Intents and Dynamic Context in Recommender Systems
| Intent-aware Ranking Ensemble for Personalized Recommendation |
|---|
| Jiayu Li, Peijie Sun, Zhefan Wang, Weizhi Ma, Yangkun Li, Min Zhang, Zhoutian Feng, Daiyue Xue. |
| SIGIR 2023 (Full paper). Online Version |
| A Situation-aware Enhancer for Personalized Recommendation |
|---|
| Jiayu Li, Peijie Sun, Chumeng Jiang, Weizhi Ma, Qingyao Ai, Min Zhang |
| DASFAA 2024 (Full paper). Preprint Version |
| Right Tool, Right Job: Recommendation for Repeat and Exploration Consumption in Food Delivery |
|---|
| Jiayu Li, Aixin Sun, Weizhi Ma, Peijie Sun, Min Zhang |
| RecSys 2024 (Research Full paper). preprint Version |
| 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. |
| IMWUT Vol 6, No 3 (Journal). Online Version |
| 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. |
| KDD 2021 (Full paper). Online Version |
| 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. |
| CHIIR 2022 (Demo paper). Online Version |
| SiTunes: A Situational Music Recommendation Dataset with Physiological and Psychological Signals |
|---|
| Vadim Grigorev, Jiayu Li, Weizhi Ma, Zhiyu He, Min Zhang, Yiqun Liu, Ming Yan, Ji Zhang |
| CHIIR 2024 (Resource paper). Online Version |
Recommender System Toolkit
| ReChorus2.0: A Modular and Task-Flexible Recommendation Library |
|---|
| Jiayu Li, Hanyu Li, Zhiyu He, Weizhi Ma, Peijie Sun, Min Zhang, Shaoping Ma |
| RecSys 2024 (Reproducibility long paper). Preprint Version; GitHub Repo |
Interdisciplinary cooperation
| 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 (Vol 3, 2023) . Online Version |
| Factors influencing passage of time judgment in individuals’ daily lives: evidence from the experience sampling and diary methods |
|---|
| Yanci Liu, Siyu Ma, Jiayu Li, Xi Song, Feng Du, Meihong Zheng |
| Psychological Research (2023.07). |
| 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 (2023.08). Online Version |
Other Publications
| Aiming at the Target: Filter Collaborative Information for Cross-Domain Recommendation |
|---|
| Hanyu Li, Weizhi Ma, Peijie Sun, Jiayu Li, Cunxiang Yin, Yancheng He, Guoqiang Xu, Min Zhang, Shaoping Ma |
| SIGIR 2024 (Full paper). Preprint Version |
| Understanding User Immersion in Online Short Video Interaction |
|---|
| Zhiyu He, Shaorun Zhang, Peijie Sun, Jiayu Li, Xiaohui Xie, Min Zhang, Yiqun Liu |
| CIKM 2023 (Full paper). Online Version |
| 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. |
| KDD 2022 (Full paper). Online Version |
| 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 |
| NTCIR-16. Online Version |
| 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. Online Version |
| A multi-level interactive lifelog search engine with user feedback |
|---|
| Jiayu Li, Min Zhang, Weizhi Ma, Yiqun Liu, Shaoping Ma. |
| LSC (challenge). Online Version |
| THUIR at the NTCIR-15 Micro-activity Retrieval Task |
|---|
| Jiayu Li, Ziyi Ye, Weizhi Ma, Min Zhang, Yiqun Liu, Shaoping Ma |
| NTCIR-15 (First place). Online Version |
Experience
| Year | Experience |
|---|
| 05.2024- | TikTok E-Commerce, Internship. |
| 04.2022-01.2023 | Meituan, Internship. |
| 07.2019-09.2019 | Sogou. Inc, Internship. |
Honor and Awards
| Year | Honor & Awards |
|---|
| 2023 | JiuKun Scholarship (First Prize), Tsinghua University. |
| 2021 | GuoQiang Scholarship, Tsinghua University. |
| 2020 | Excellent Graduate, Tsinghua University. |
