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In recent years, group buying has become one popular kind of online shopping activity, thanks to its larger sales and lower unit price. Unfortunately, research seldom focuses on recommendations specifically for group buying by now. Although…

信息检索 · 计算机科学 2022-11-28 Shuoyao Zhai , Baichuan Liu , Deqing Yang , Yanghua Xiao

Recommendation dialogue systems aim to build social bonds with users and provide high-quality recommendations. This paper pushes forward towards a promising paradigm called target-driven recommendation dialogue systems, which is highly…

计算与语言 · 计算机科学 2022-08-09 Jian Wang , Dongding Lin , Wenjie Li

In Conversational Recommendation Systems (CRS), a user provides feedback on recommended items at each turn, leading the CRS towards improved recommendations. Due to the need for a large amount of data, a user simulator is employed for both…

信息检索 · 计算机科学 2025-07-25 Maria Vlachou

Large language models (LLMs) are reshaping the recommender system paradigm by enabling users to express preferences and receive recommendations through conversations. Yet, aligning LLMs to the recommendation task remains challenging:…

信息检索 · 计算机科学 2026-02-17 Yaochen Zhu , Harald Steck , Dawen Liang , Yinhan He , Vito Ostuni , Jundong Li , Nathan Kallus

Conversational recommender systems (CRSs) aim to proactively capture user preferences through natural language dialogue and recommend high-quality items. To achieve this, CRS gathers user preferences via a dialog module and builds user…

人工智能 · 计算机科学 2025-11-12 Zhenye Yang , Jinpeng Chen , Huan Li , Xiongnan Jin , Xuanyang Li , Junwei Zhang , Hongbo Gao , Kaimin Wei , Senzhang Wang

Conversational recommendation systems (CRSs) use multi-turn interaction to capture user preferences and provide personalized recommendations. A fundamental challenge in CRSs lies in effectively understanding user preferences from…

信息检索 · 计算机科学 2025-04-30 Xiaolei Wang , Chunxuan Xia , Junyi Li , Fanzhe Meng , Lei Huang , Jinpeng Wang , Wayne Xin Zhao , Ji-Rong Wen

Conversational recommender systems (CRSs) capture user preference through textual information in dialogues. However, they suffer from data sparsity on two fronts: the dialogue space is vast and linguistically diverse, while the item space…

信息检索 · 计算机科学 2025-07-02 Sixiao Zhang , Mingrui Liu , Cheng Long , Wei Yuan , Hongxu Chen , Xiangyu Zhao , Hongzhi Yin

In business domains, \textit{bundling} is one of the most important marketing strategies to conduct product promotions, which is commonly used in online e-commerce and offline retailers. Existing recommender systems mostly focus on…

信息检索 · 计算机科学 2021-04-13 Qilin Deng , Kai Wang , Minghao Zhao , Zhene Zou , Runze Wu , Jianrong Tao , Changjie Fan , Liang Chen

Recommender systems are one of the most successful applications of machine learning and data science. They are successful in a wide variety of application domains, including e-commerce, media streaming content, email marketing, and…

信息检索 · 计算机科学 2023-04-04 Juan Pablo Equihua , Maged Ali , Henrik Nordmark , Berthold Lausen

The recent advances of conversational recommendations provide a promising way to efficiently elicit users' preferences via conversational interactions. To achieve this, the recommender system conducts conversations with users, asking their…

信息检索 · 计算机科学 2022-09-14 Jinhang Zuo , Songwen Hu , Tong Yu , Shuai Li , Handong Zhao , Carlee Joe-Wong

Session-based recommendation (SBR) aims to capture dynamic user preferences by analyzing item sequences within individual sessions. However, most existing approaches focus mainly on intra-session item relationships, neglecting the…

信息检索 · 计算机科学 2025-05-28 Wooseong Yang , Chen Wang , Zihe Song , Weizhi Zhang , Philip S. Yu

Session-based recommendation (SR) has become an important and popular component of various e-commerce platforms, which aims to predict the next interacted item based on a given session. Most of existing SR models only focus on exploiting…

信息检索 · 计算机科学 2020-06-19 Wenjing Meng , Deqing Yang , Yanghua Xiao

Traditional recommendation systems estimate user preference on items from past interaction history, thus suffering from the limitations of obtaining fine-grained and dynamic user preference. Conversational recommendation system (CRS) brings…

信息检索 · 计算机科学 2020-07-02 Wenqiang Lei , Gangyi Zhang , Xiangnan He , Yisong Miao , Xiang Wang , Liang Chen , Tat-Seng Chua

Conversational Recommender Systems (CRSs) in E-commerce platforms aim to recommend items to users via multiple conversational interactions. Click-through rate (CTR) prediction models are commonly used for ranking candidate items. However,…

信息检索 · 计算机科学 2021-05-03 Chi-Man Wong , Fan Feng , Wen Zhang , Chi-Man Vong , Hui Chen , Yichi Zhang , Peng He , Huan Chen , Kun Zhao , Huajun Chen

Inspired by conversational reading comprehension (CRC), this paper studies a novel task of leveraging reviews as a source to build an agent that can answer multi-turn questions from potential consumers of online businesses. We first build a…

计算与语言 · 计算机科学 2019-11-07 Hu Xu , Bing Liu , Lei Shu , Philip S. Yu

Recommender systems serve as foundational infrastructure in modern information ecosystems, helping users navigate digital content and discover items aligned with their preferences. At their core, recommender systems address a fundamental…

信息检索 · 计算机科学 2026-05-12 Min Hou , Le Wu , Yuxin Liao , Yonghui Yang , Zhen Zhang , Yu Wang , Changlong Zheng , Han Wu , Richang Hong

Conversational and question-based recommender systems have gained increasing attention in recent years, with users enabled to converse with the system and better control recommendations. Nevertheless, research in the field is still limited,…

信息检索 · 计算机科学 2020-06-01 Jie Zou , Yifan Chen , Evangelos Kanoulas

Multi-behavior recommendation systems enhance effectiveness by leveraging auxiliary behaviors (such as page views and favorites) to address the limitations of traditional models that depend solely on sparse target behaviors like purchases.…

信息检索 · 计算机科学 2024-08-23 Haojie Li , Zhiyong Cheng , Xu Yu , Jinhuan Liu , Guanfeng Liu , Junwei Du

Multi-modal recommendation (MMR) enriches item representations by introducing item content, e.g., visual and textual descriptions, to improve upon interaction-only recommenders. The success of MMR hinges on aligning these content modalities…

信息检索 · 计算机科学 2026-04-06 Jing Du , Zesheng Ye , Congbo Ma , Feng Liu , Flora. D. Salim

Conversational recommender systems (CRS) enable the traditional recommender systems to explicitly acquire user preferences towards items and attributes through interactive conversations. Reinforcement learning (RL) is widely adopted to…

信息检索 · 计算机科学 2021-05-21 Yang Deng , Yaliang Li , Fei Sun , Bolin Ding , Wai Lam