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Modern e-commerce platforms offer vast product selections, making it difficult for customers to find items that they like and that are relevant to their current session intent. This is why it is key for e-commerce platforms to have near…

Conversational Recommender Systems (CRSs) have attracted growing attention for their ability to deliver personalized recommendations through natural language interactions. To more accurately infer user preferences from multi-turn…

Information Retrieval · Computer Science 2026-01-21 Wei Yuan , Shutong Qiao , Tong Chen , Quoc Viet Hung Nguyen , Zi Huang , Hongzhi Yin

E-commerce search serves as a central interface, connecting user demands with massive product inventories and plays a vital role in our daily lives. However, in real-world applications, it faces challenges, including highly ambiguous…

Information Retrieval · Computer Science 2026-03-25 Yupeng Li , Ben Chen , Mingyue Cheng , Zhiding Liu , Xuxin Zhang , Chenyi Lei , Wenwu Ou

Recommender systems play a vital role in modern online services, such as Amazon and Taobao. Traditional personalized methods, which focus on user-item (UI) relations, have been widely applied in industrial settings, owing to their…

Information Retrieval · Computer Science 2021-03-02 Xu Xie , Fei Sun , Xiaoyong Yang , Zhao Yang , Jinyang Gao , Wenwu Ou , Bin Cui

In this paper, we propose a listwise approach for constructing user-specific rankings in recommendation systems in a collaborative fashion. We contrast the listwise approach to previous pointwise and pairwise approaches, which are based on…

Machine Learning · Statistics 2019-02-08 Liwei Wu , Cho-Jui Hsieh , James Sharpnack

In this paper, we propose a robust sequential learning strategy for training large-scale Recommender Systems (RS) over implicit feedback mainly in the form of clicks. Our approach relies on the minimization of a pairwise ranking loss over…

Information Retrieval · Computer Science 2021-09-15 Alexandra Burashnikova , Yury Maximov , Massih-Reza Amini

In recent years, with the significant evolution of multi-modal large models, many recommender researchers realized the potential of multi-modal information for user interest modeling. In industry, a wide-used modeling architecture is a…

Slot filling is a critical task in natural language understanding (NLU) for dialog systems. State-of-the-art approaches treat it as a sequence labeling problem and adopt such models as BiLSTM-CRF. While these models work relatively well on…

Computation and Language · Computer Science 2019-05-07 Yu Gong , Xusheng Luo , Yu Zhu , Wenwu Ou , Zhao Li , Muhua Zhu , Kenny Q. Zhu , Lu Duan , Xi Chen

With the advent of location-based social networks, users can tag their daily activities in different locations through check-ins. These check-in locations signify user preferences for various socio-spatial activities and can be used to…

Social and Information Networks · Computer Science 2022-03-01 Nur Al Hasan Haldar , Jianxin Li , Mohammed Eunus Ali , Taotao Cai , Timos Sellis , Mark Reynolds

Interactions between search and recommendation have recently attracted significant attention, and several studies have shown that many potential applications involve with a joint problem of producing recommendations to users with respect to…

Information Retrieval · Computer Science 2014-12-15 Lu Yu , Junming Huang , Chuang Liu , Zike Zhang

The core challenge in learning has shifted from knowledge acquisition to effective Self-Regulated Learning (SRL): planning, monitoring, and reflecting on one's learning. Existing digital tools, however, inadequately support metacognitive…

Human-Computer Interaction · Computer Science 2025-06-26 Xuefei Hou , Xizhao Tan

Reinforcement Learning (RL)-based recommender systems (RSs) have garnered considerable attention due to their ability to learn optimal recommendation policies and maximize long-term user rewards. However, deploying RL models directly in…

Information Retrieval · Computer Science 2023-10-20 Kesen Zhao , Shuchang Liu , Qingpeng Cai , Xiangyu Zhao , Ziru Liu , Dong Zheng , Peng Jiang , Kun Gai

Industrial-scale recommender systems rely on a cascade pipeline in which the retrieval stage must return a high-recall candidate set from billions of items under tight latency. Existing solutions either (i) suffer from limited…

Information Retrieval · Computer Science 2026-04-02 Yijia Sun , Shanshan Huang , Zhiyuan Guan , Qiang Luo , Ruiming Tang , Kun Gai , Guorui Zhou

Recommender systems deployed in real-world applications can have inherent exposure bias, which leads to the biased logged data plaguing the researchers. A fundamental way to address this thorny problem is to collect users' interactions on…

Information Retrieval · Computer Science 2022-08-24 Chongming Gao , Shijun Li , Yuan Zhang , Jiawei Chen , Biao Li , Wenqiang Lei , Peng Jiang , Xiangnan He

The rapid growth of location-based services (LBS) has yielded massive amounts of data on human mobility. Effectively extracting meaningful representations for user-generated check-in sequences is pivotal for facilitating various downstream…

Machine Learning · Computer Science 2024-07-26 Letian Gong , Huaiyu Wan , Shengnan Guo , Xiucheng Li , Yan Lin , Erwen Zheng , Tianyi Wang , Zeyu Zhou , Youfang Lin

Conversational Recommender Systems (CRSs) aim to provide personalized recommendations by interacting with users through conversations. Most existing studies of CRS focus on extracting user preferences from conversational contexts. However,…

Information Retrieval · Computer Science 2025-04-28 Yibiao Wei , Jie Zou , Weikang Guo , Guoqing Wang , Xing Xu , Yang Yang

Recommender systems are embracing conversational technologies to obtain user preferences dynamically, and to overcome inherent limitations of their static models. A successful Conversational Recommender System (CRS) requires proper handling…

Information Retrieval · Computer Science 2020-02-24 Wenqiang Lei , Xiangnan He , Yisong Miao , Qingyun Wu , Richang Hong , Min-Yen Kan , Tat-Seng Chua

Personalized interior decoration design often incurs high labor costs. Recent efforts in developing intelligent interior design systems have focused on generating textual requirement-based decoration designs while neglecting the problem of…

Multimedia · Computer Science 2023-10-12 He Zhang , Ying Sun , Weiyu Guo , Yafei Liu , Haonan Lu , Xiaodong Lin , Hui Xiong

Industrial ranking systems, such as advertising systems, rank items by aggregating multiple objectives into one final objective to satisfy user demand and commercial intent. Cascade architecture, composed of retrieval, pre-ranking, and…

Information Retrieval · Computer Science 2022-11-04 Siyu Gu , Xiangrong Sheng

Gaussian splatting (GS) struggles with degraded rendering quality on low-cost devices. To address this issue, we present edge collaborative GS (ECO-GS), where each user can switch between a local small GS model to guarantee timeliness and a…

Information Theory · Computer Science 2026-01-30 Yujie Wan , Chenxuan Liu , Shuai Wang , Tong Zhang , James Jianqiao Yu , Kejiang Ye , Dusit Niyato , Chengzhong Xu