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Multi-behavior recommendation exploits multiple types of user-item interactions to alleviate the data sparsity problem faced by the traditional models that often utilize only one type of interaction for recommendation. In real scenarios,…

信息检索 · 计算机科学 2023-07-13 Mingshi Yan , Zhiyong Cheng , Chen Gao , Jing Sun , Fan Liu , Fuming Sun , Haojie Li

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…

信息检索 · 计算机科学 2026-01-21 Wei Yuan , Shutong Qiao , Tong Chen , Quoc Viet Hung Nguyen , Zi Huang , Hongzhi Yin

Conversational Recommendation System (CRS) is a rapidly growing research area that has gained significant attention alongside advancements in language modelling techniques. However, the current state of conversational recommendation faces…

计算与语言 · 计算机科学 2023-10-26 Xi Wang , Hossein A. Rahmani , Jiqun Liu , Emine Yilmaz

Conversational recommender system (CRS) interacts with users through multi-turn dialogues in natural language, which aims to provide high-quality recommendations for user's instant information need. Although great efforts have been made to…

信息检索 · 计算机科学 2023-10-27 Chenzhan Shang , Yupeng Hou , Wayne Xin Zhao , Yaliang Li , Jing Zhang

In recommendation systems, new items are continuously introduced, initially lacking interaction records but gradually accumulating them over time. Accurately predicting the click-through rate (CTR) for these items is crucial for enhancing…

信息检索 · 计算机科学 2024-07-16 Yaqing Wang , Hongming Piao , Daxiang Dong , Quanming Yao , Jingbo Zhou

Route Recommendation (RR) is a core task in route planning within online navigation applications, aiming to recommend the optimal route among candidate routes to users. Industrially, RR adopts the two-stage recall-and-rank framework instead…

信息检索 · 计算机科学 2026-02-04 Hanyu Guo , Chao Chen , Longfei Xu , Chengzhang Wang , Kaikui Liu , Xiangxiang Chu

Cross-Domain Recommendation (CDR) and Cross-System Recommendations (CSR) are two of the promising solutions to address the long-standing data sparsity problem in recommender systems. They leverage the relatively richer information, e.g.,…

机器学习 · 计算机科学 2020-09-15 Feng Zhu , Yan Wang , Chaochao Chen , Guanfeng Liu , Mehmet Orgun , Jia Wu

Click-through rate (CTR) prediction is a vital task in industrial recommendation systems. Most existing methods focus on the network architecture design of the CTR model for better accuracy and suffer from the data sparsity problem.…

信息检索 · 计算机科学 2023-12-19 Qi Liu , Xuyang Hou , Defu Lian , Zhe Wang , Haoran Jin , Jia Cheng , Jun Lei

Collaborative filtering (CF) is a successful approach commonly used by many recommender systems. Conventional CF-based methods use the ratings given to items by users as the sole source of information for learning to make recommendation.…

机器学习 · 计算机科学 2015-06-22 Hao Wang , Naiyan Wang , Dit-Yan Yeung

Conversational recommender systems (CRSs) aim to provide recommendation services via natural language conversations. Although a number of approaches have been proposed for developing capable CRSs, they typically rely on sufficient training…

计算与语言 · 计算机科学 2024-06-21 Xiaolei Wang , Kun Zhou , Xinyu Tang , Wayne Xin Zhao , Fan Pan , Zhao Cao , Ji-Rong Wen

Recommendation systems, as widely implemented nowadays on various platforms, recommend relevant items to users based on their preferences. The classical methods which rely on user-item interaction matrices has limitations, especially in…

信息检索 · 计算机科学 2025-01-13 Guangyi Liu , Quanming Yao , Yongqi Zhang , Lei Chen

Modern recommendation systems typically follow two complementary paradigms: collaborative filtering, which models long-term user preferences from historical interactions, and conversational recommendation systems (CRS), which interact with…

信息检索 · 计算机科学 2025-06-24 Vinaik Chhetri , Yousaf Reza , Moghis Fereidouni , Srijata Maji , Umar Farooq , AB Siddique

Conversational recommender systems (CRSs) are designed to suggest the target item that the user is likely to prefer through multi-turn conversations. Recent studies stress that capturing sentiments in user conversations improves…

信息检索 · 计算机科学 2025-07-30 Heejin Kook , Junyoung Kim , Seongmin Park , Jongwuk Lee

Click-through rate (CTR) estimation is a fundamental task in personalized advertising and recommender systems and it's important for ranking models to effectively capture complex high-order features.Inspired by the success of ELMO and Bert…

信息检索 · 计算机科学 2021-07-27 Zhiqiang Wang , Qingyun She , PengTao Zhang , Junlin Zhang

With the aid of large language models, current conversational recommender system (CRS) has gaining strong abilities to persuade users to accept recommended items. While these CRSs are highly persuasive, they can mislead users by…

计算与语言 · 计算机科学 2024-10-08 Peixin Qin , Chen Huang , Yang Deng , Wenqiang Lei , Tat-Seng Chua

Users' reviews contain valuable information which are not taken into account in most recommender systems. According to the latest studies in this field, using review texts could not only improve the performance of recommendation, but it can…

信息检索 · 计算机科学 2020-03-17 Parisa Abolfath Beygi Dezfouli , Saeedeh Momtazi , Mehdi Dehghan

Conversational recommender systems enable natural language conversations and thus lead to a more engaging and effective recommendation scenario. As the conversations for recommender systems usually contain limited contextual information,…

计算与语言 · 计算机科学 2025-08-28 Jie Zou , Cheng Lin , Weikang Guo , Zheng Wang , Jiwei Wei , Yang Yang , Heng Tao Shen

In Click-Through Rate (CTR) prediction, the long behavior sequence, comprising the user's long period of historical interactions with items has a vital influence on assessing the user's interest in the candidate item. Existing approaches…

信息检索 · 计算机科学 2025-08-29 Zhuoxing Wei , Qi Liu , Qingchen Xie

Many platforms, such as e-commerce websites, offer both search and recommendation services simultaneously to better meet users' diverse needs. Recommendation services suggest items based on user preferences, while search services allow…

信息检索 · 计算机科学 2024-10-30 Yuening Wang , Man Chen , Yaochen Hu , Wei Guo , Yingxue Zhang , Huifeng Guo , Yong Liu , Mark Coates

Click-Through Rate (CTR) prediction is a crucial task in online recommendation platforms as it involves estimating the probability of user engagement with advertisements or items by clicking on them. Given the availability of various…

信息检索 · 计算机科学 2024-09-27 Zichuan Fu , Xiangyang Li , Chuhan Wu , Yichao Wang , Kuicai Dong , Xiangyu Zhao , Mengchen Zhao , Huifeng Guo , Ruiming Tang