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Improving the performance of click-through rate (CTR) prediction remains one of the core tasks in online advertising systems. With the rise of deep learning, CTR prediction models with deep networks remarkably enhance model capacities. In…

Machine Learning · Computer Science 2019-11-05 Yikai Wang , Liang Zhang , Quanyu Dai , Fuchun Sun , Bo Zhang , Yang He , Weipeng Yan , Yongjun Bao

Click-through rate (CTR) prediction plays a crucial role in modern recommender systems. While many existing methods utilize ensemble networks to improve CTR model performance, they typically restrict the ensemble to only two or three…

Information Retrieval · Computer Science 2025-06-23 Honghao Li , Lei Sang , Yi Zhang , Guangming Cui , Yiwen Zhang

Predicting Click-Through Rate (CTR) in billion-scale recommender systems poses a long-standing challenge for Graph Neural Networks (GNNs) due to the overwhelming computational complexity involved in aggregating billions of neighbors. To…

Information Retrieval · Computer Science 2024-05-09 Hao Chen , Yuanchen Bei , Qijie Shen , Yue Xu , Sheng Zhou , Wenbing Huang , Feiran Huang , Senzhang Wang , Xiao Huang

Conversational recommender systems (CRS) enhance the expressivity and personalization of recommendations through multiple turns of user-system interaction. Critiquing is a well-known paradigm for CRS that allows users to iteratively refine…

Information Retrieval · Computer Science 2023-06-12 Armin Toroghi , Griffin Floto , Zhenwei Tang , Scott Sanner

Click-Through Rate (CTR) prediction plays a core role in recommender systems, serving as the final-stage filter to rank items for a user. The key to addressing the CTR task is learning feature interactions that are useful for prediction,…

Information Retrieval · Computer Science 2023-04-27 Yang Zhang , Tianhao Shi , Fuli Feng , Wenjie Wang , Dingxian Wang , Xiangnan He , Yongdong Zhang

In recent years, knowledge graphs have been widely applied to organize data in a uniform way and enhance many tasks that require knowledge, for example, online shopping which has greatly facilitated people's life. As a backbone for online…

Artificial Intelligence · Computer Science 2021-05-04 Wen Zhang , Chi-Man Wong , Ganqiang Ye , Bo Wen , Wei Zhang , Huajun Chen

A large-scale industrial recommendation platform typically consists of multiple associated scenarios, requiring a unified click-through rate (CTR) prediction model to serve them simultaneously. Existing approaches for multi-scenario CTR…

Information Retrieval · Computer Science 2023-06-26 Xing Tang , Yang Qiao , Yuwen Fu , Fuyuan Lyu , Dugang Liu , Xiuqiang He

Deep recommender systems (DRS) are critical for current commercial online service providers, which address the issue of information overload by recommending items that are tailored to the user's interests and preferences. They have…

Information Retrieval · Computer Science 2023-02-17 Bo Chen , Xiangyu Zhao , Yejing Wang , Wenqi Fan , Huifeng Guo , Ruiming Tang

Click-through rate (CTR) prediction is a core task in recommender systems. Existing methods (IDRec for short) rely on unique identities to represent distinct users and items that have prevailed for decades. On one hand, IDRec often faces…

Information Retrieval · Computer Science 2024-03-18 Yuanbo Gao , Peng Lin , Dongyue Wang , Feng Mei , Xiwei Zhao , Sulong Xu , Jinghe Hu

Click-Through Rate (CTR) prediction is one of the most important and challenging in calculating advertisements and recommendation systems. To build a machine learning system with these data, it is important to properly model the interaction…

Machine Learning · Computer Science 2020-06-11 Dafang Zou , Leiming Zhang , Jiafa Mao , Weiguo Sheng

Incorporating knowledge graph into recommender systems has attracted increasing attention in recent years. By exploring the interlinks within a knowledge graph, the connectivity between users and items can be discovered as paths, which…

Information Retrieval · Computer Science 2018-11-13 Xiang Wang , Dingxian Wang , Canran Xu , Xiangnan He , Yixin Cao , Tat-Seng Chua

Online travel platforms (OTPs), e.g., Ctrip.com or Fliggy.com, can effectively provide travel-related products or services to users. In this paper, we focus on the multi-scenario click-through rate (CTR) prediction, i.e., training a unified…

Information Retrieval · Computer Science 2023-04-18 Peilin Chen , Hong Wen , Jing Zhang , Fuyu Lv , Zhao Li , Qijie Shen , Wanjie Tao , Ying Zhou , Chao Zhang

Industry recommender systems usually suffer from highly-skewed long-tail item distributions where a small fraction of the items receives most of the user feedback. This skew hurts recommender quality especially for the item slices without…

Information Retrieval · Computer Science 2023-09-06 Yin Zhang , Ruoxi Wang , Tiansheng Yao , Xinyang Yi , Lichan Hong , James Caverlee , Ed H. Chi , Derek Zhiyuan Cheng

CTR prediction, which aims to estimate the probability that a user will click an item, plays a crucial role in online advertising and recommender system. Feature interaction modeling based and user interest mining based methods are the two…

Information Retrieval · Computer Science 2021-06-09 Wei Guo , Rong Su , Renhao Tan , Huifeng Guo , Yingxue Zhang , Zhirong Liu , Ruiming Tang , Xiuqiang He

Conversational recommender systems (CRS) aim to provide highquality recommendations in conversations. However, most conventional CRS models mainly focus on the dialogue understanding of the current session, ignoring other rich multi-aspect…

Information Retrieval · Computer Science 2022-04-26 Shuokai Li , Ruobing Xie , Yongchun Zhu , Xiang Ao , Fuzhen Zhuang , Qing He

Interactive recommender system (IRS) has drawn huge attention because of its flexible recommendation strategy and the consideration of optimal long-term user experiences. To deal with the dynamic user preference and optimize accumulative…

Information Retrieval · Computer Science 2020-06-19 Sijin Zhou , Xinyi Dai , Haokun Chen , Weinan Zhang , Kan Ren , Ruiming Tang , Xiuqiang He , Yong Yu

Shared-account Cross-domain Sequential recommendation (SCSR) is the task of recommending the next item based on a sequence of recorded user behaviors, where multiple users share a single account, and their behaviours are available in…

Information Retrieval · Computer Science 2021-05-10 Lei Guo , Li Tang , Tong Chen , Lei Zhu , Quoc Viet Hung Nguyen , Hongzhi Yin

In e-commerce, Trigger-Induced Recommendation (TIR), recommending items after a user clicks a trigger, is an important task. However, modern platforms rely on a continuous stream of diverse and short-lived promotional scenarios (e.g., for…

Information Retrieval · Computer Science 2026-04-16 Chen Gao , Zixin Zhao , Lv Shao , Tong Liu

Generating effective query suggestions in conversational search requires aligning model outputs with user preferences, which is challenging due to sparse and noisy click signals. We propose GQS, a generative framework that integrates click…

Information Retrieval · Computer Science 2025-07-08 Erxue Min , Hsiu-Yuan Huang , Xihong Yang , Min Yang , Xin Jia , Yunfang Wu , Hengyi Cai , Junfeng Wang , Shuaiqiang Wang , Dawei Yin

Online platforms can be divided into information-oriented and social-oriented domains. The former refers to forums or E-commerce sites that emphasize user-item interactions, like Trip.com and Amazon; whereas the latter refers to social…

Information Retrieval · Computer Science 2017-06-13 Xiang Wang , Xiangnan He , Liqiang Nie , Tat-Seng Chua