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Content-based collaborative filtering (CCF) predicts user-item interactions based on both users' interaction history and items' content information. Recently, pre-trained language models (PLM) have been used to extract high-quality item…

计算与语言 · 计算机科学 2022-11-23 Yoonseok Yang , Kyu Seok Kim , Minsam Kim , Juneyoung Park

Graph Collaborative Filtering (GCF), one of the most widely adopted recommendation system methods, effectively captures intricate relationships between user and item interactions. Graph Contrastive Learning (GCL) based GCF has gained…

信息检索 · 计算机科学 2024-10-30 Yangxun Ou , Lei Chen , Fenglin Pan , Yupeng Wu

Many bipartite networks describe systems where an edge represents a relation between a user and an item. Measuring the similarity between either users or items is the basis of memory-based collaborative filtering, a widely used method to…

信息检索 · 计算机科学 2023-05-09 Giambattista Albora , Lavinia Rossi-Mori , Andrea Zaccaria

Collaborative filtering is a critical technique in recommender systems. It has been increasingly viewed as a conditional generative task for user feedback data, where newly developed diffusion model shows great potential. However, existing…

信息检索 · 计算机科学 2024-04-25 Yunqin Zhu , Chao Wang , Qi Zhang , Hui Xiong

Collaborative Filtering (CF) is one of the most commonly used recommendation methods. CF consists in predicting whether, or how much, a user will like (or dislike) an item by leveraging the knowledge of the user's preferences as well as…

Collaborative Filtering (CF) is a widely used technique which allows to leverage past users' preferences data to identify behavioural patterns and exploit them to predict custom recommendations. In this work, we illustrate our review of…

信息检索 · 计算机科学 2022-09-28 Andrea Pinto , Giacomo Camposampiero , Loïc Houmard , Marc Lundwall

Graph Convolution Networks (GCNs) have significantly succeeded in learning user and item representations for recommendation systems. The core of their efficacy is the ability to explicitly exploit the collaborative signals from both the…

信息检索 · 计算机科学 2024-11-11 Fan Liu , Shuai Zhao , Zhiyong Cheng , Liqiang Nie , Mohan Kankanhalli

Implicit feedback has been widely used to build commercial recommender systems. Because observed feedback represents users' click logs, there is a semantic gap between true relevance and observed feedback. More importantly, observed…

信息检索 · 计算机科学 2022-07-27 Jae-woong Lee , Seongmin Park , Joonseok Lee , Jongwuk Lee

In recent years, deep neural networks have yielded immense success on speech recognition, computer vision and natural language processing. However, the exploration of deep neural networks on recommender systems has received relatively less…

信息检索 · 计算机科学 2017-08-29 Xiangnan He , Lizi Liao , Hanwang Zhang , Liqiang Nie , Xia Hu , Tat-Seng Chua

Recently, transformer-based generative recommendation has garnered significant attention for user behavior modeling. However, it often requires discretizing items into multi-code representations (e.g., typically four code tokens or more),…

信息检索 · 计算机科学 2025-12-18 Longtao Xiao , Haolin Zhang , Guohao Cai , Jieming Zhu , Yifan Wang , Heng Chang , Zhenhua Dong , Xiu Li , Ruixuan Li

Graph collaborative filtering (GCF) is a popular technique for capturing high-order collaborative signals in recommendation systems. However, GCF's bipartite adjacency matrix, which defines the neighbors being aggregated based on user-item…

信息检索 · 计算机科学 2023-04-12 Ziwei Fan , Ke Xu , Zhang Dong , Hao Peng , Jiawei Zhang , Philip S. Yu

Recently, there has been an emergence of employing LLM-powered agents as believable human proxies, based on their remarkable decision-making capability. However, existing studies mainly focus on simulating human dialogue. Human non-verbal…

信息检索 · 计算机科学 2023-10-16 Junjie Zhang , Yupeng Hou , Ruobing Xie , Wenqi Sun , Julian McAuley , Wayne Xin Zhao , Leyu Lin , Ji-Rong Wen

We present an item-based approach for collaborative filtering. We determine a list of recommended items for a user by considering their previous purchases. Additionally other features of the users could be considered such as page views,…

信息检索 · 计算机科学 2011-01-18 Fabrizio Caruso , Giovanni Giuffrida , Calogero Zarba

As users often express their preferences with binary behavior data~(implicit feedback), such as clicking items or buying products, implicit feedback based Collaborative Filtering~(CF) models predict the top ranked items a user might like by…

信息检索 · 计算机科学 2021-05-27 Lei Chen , Le Wu , Kun Zhang , Richang Hong , Meng Wang

In collaborative filtering (CF), interaction function (IFC) plays the important role of capturing interactions among items and users. The most popular IFC is the inner product, which has been successfully used in low-rank matrix…

机器学习 · 计算机科学 2020-04-07 Quanming Yao , Xiangning Chen , James Kwok , Yong Li , Cho-Jui Hsieh

Collaborative filtering (CF) has been successfully employed by many modern recommender systems. Conventional CF-based methods use the user-item interaction data as the sole information source to recommend items to users. However, CF-based…

机器学习 · 计算机科学 2018-09-25 Kenan Cui , Xu Chen , Jiangchao Yao , Ya Zhang

Embedding-based collaborative filtering, often coupled with nearest neighbor search, is widely deployed in large-scale recommender systems for personalized content selection. Modern systems leverage multiple implicit feedback signals (e.g.,…

信息检索 · 计算机科学 2025-05-29 Zhongjin Zhang , Yu Liang , Cong Fu , Yuxuan Zhu , Kun Wang , Yabo Ni , Anxiang Zeng , Jiazhi Xia

Vision-based bird's-eye-view (BEV) 3D object detection has advanced significantly in autonomous driving by offering cost-effectiveness and rich contextual information. However, existing methods often construct BEV representations by…

计算机视觉与模式识别 · 计算机科学 2025-08-05 Jicheng Yuan , Manh Nguyen Duc , Qian Liu , Manfred Hauswirth , Danh Le Phuoc

Temporal collaborative filtering (TCF) methods aim at modelling non-static aspects behind recommender systems, such as the dynamics in users' preferences and social trends around items. State-of-the-art TCF methods employ recurrent neural…

人工智能 · 计算机科学 2020-10-14 Esther Rodrigo Bonet , Duc Minh Nguyen , Nikos Deligiannis

With the development of Augmented Reality (AR), egocentric action recognition (EAR) plays important role in accurately understanding demands from the user. However, EAR is designed to help recognize human-machine interaction in single…

计算机视觉与模式识别 · 计算机科学 2020-03-25 Zhongguo Li , Fan Lyu , Wei Feng , Song Wang