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相关论文: A Context-Aware User-Item Representation Learning …

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Lifelong sequential modeling (LSM) is becoming increasingly critical in social media recommendation systems for predicting the click-through rate (CTR) of items presented to users. Central to this process is the attention mechanism, which…

信息检索 · 计算机科学 2025-04-14 Ting Guo , Zhaoyang Yang , Qinsong Zeng , Ming Chen

Aggregated search aims to construct search result pages (SERPs) from blue-links and heterogeneous modules (such as news, images, and videos). Existing studies have largely ignored the correlations between blue-links and heterogeneous…

信息检索 · 计算机科学 2019-08-09 Xinting Huang , Jianzhong Qi , Yu Sun , Rui Zhang , Hai-Tao Zheng

Conventional representation learning methods learn a universal representation that primarily captures dominant semantics, which may not always align with customized downstream tasks. For instance, in animal habitat analysis, researchers…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Honglin Liu , Chao Sun , Peng Hu , Yunfan Li , Xi Peng

Most modern recommender systems predict users preferences with two components: user and item embedding learning, followed by the user-item interaction modeling. By utilizing the auxiliary review information accompanied with user ratings,…

信息检索 · 计算机科学 2022-05-17 Jie Shuai , Kun Zhang , Le Wu , Peijie Sun , Richang Hong , Meng Wang , Yong Li

Collaborative Metric Learning (CML) recently emerged as a powerful paradigm for recommendation based on implicit feedback collaborative filtering. However, standard CML methods learn fixed user and item representations, which fails to…

信息检索 · 计算机科学 2021-08-11 Viet-Anh Tran , Guillaume Salha-Galvan , Romain Hennequin , Manuel Moussallam

While Reinforcement Learning has made great strides towards solving ever more complicated tasks, many algorithms are still brittle to even slight changes in their environment. This is a limiting factor for real-world applications of RL.…

Recommender systems have been widely applied to assist user's decision making by providing a list of personalized item recommendations. Context-aware recommender systems (CARS) additionally take context information into considering in the…

信息检索 · 计算机科学 2017-10-25 Yong Zheng

Matrix factorization (MF) is one of the most efficient methods for rating predictions. MF learns user and item representations by factorizing the user-item rating matrix. Further, textual contents are integrated to conventional MF to…

信息检索 · 计算机科学 2021-05-13 ThaiBinh Nguyen , Atsuhiro Takasu

Existing review-based recommendation methods usually use the same model to learn the representations of all users/items from reviews posted by users towards items. However, different users have different preference and different items have…

信息检索 · 计算机科学 2019-05-31 Hongtao Liu , Fangzhao Wu , Wenjun Wang , Xianchen Wang , Pengfei Jiao , Chuhan Wu , Xing Xie

Traditional recommender systems encounter several challenges such as data sparsity and unexplained recommendation. To address these challenges, many works propose to exploit semantic information from review data. However, these methods have…

信息检索 · 计算机科学 2020-10-16 Jiahui Wen , Jingwei Ma , Hongkui Tu , Wei Yin , Jian Fang

Visually-aware recommender systems use visual signals present in the underlying data to model the visual characteristics of items and users' preferences towards them. In the domain of clothing recommendation, incorporating items' visual…

计算机视觉与模式识别 · 计算机科学 2018-08-23 Charles Packer , Julian McAuley , Arnau Ramisa

The latest advance in recommendation shows that better user and item representations can be learned via performing graph convolutions on the user-item interaction graph. However, such finding is mostly restricted to the collaborative…

信息检索 · 计算机科学 2022-01-10 Jiancan Wu , Xiangnan He , Xiang Wang , Qifan Wang , Weijian Chen , Jianxun Lian , Xing Xie

Using Reinforcement Learning (RL) to learn new robotic tasks from scratch is often inefficient. Leveraging prior knowledge has the potential to significantly enhance learning efficiency, which, however, raises two critical challenges: how…

机器人学 · 计算机科学 2025-06-10 Zechen Hu , Tong Xu , Xuesu Xiao , Xuan Wang

A context-aware recommender system (CARS) applies sensing and analysis of user context to provide personalized services. The contextual information can be driven from sensors in order to improve the accuracy of the recommendations. Yet,…

机器学习 · 计算机科学 2022-08-10 Amit Livne , Eliad Shem Tov , Adir Solomon , Achiya Elyasaf , Bracha Shapira , Lior Rokach

A major challenge in modern reinforcement learning (RL) is efficient control of dynamical systems from high-dimensional sensory observations. Learning controllable embedding (LCE) is a promising approach that addresses this challenge by…

机器学习 · 计算机科学 2020-06-25 Brandon Cui , Yinlam Chow , Mohammad Ghavamzadeh

Recommending cold-start items is a long-standing and fundamental challenge in recommender systems. Without any historical interaction on cold-start items, CF scheme fails to use collaborative signals to infer user preference on these items.…

信息检索 · 计算机科学 2021-07-16 Yinwei Wei , Xiang Wang , Qi Li , Liqiang Nie , Yan Li , Xuanping Li , Tat-Seng Chua

Collaborative filtering problems are commonly solved based on matrix completion techniques which recover the missing values of user-item interaction matrices. In a matrix, the rating position specifically represents the user given and the…

信息检索 · 计算机科学 2022-10-11 Taejun Lim , Siqu Long , Josiah Poon , Soyeon Caren Han

Previous work on action representation learning focused on global representations for short video clips. In contrast, many practical applications, such as video alignment, strongly demand learning the intensive representation of long…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Minghao Chen , Renbo Tu , Chenxi Huang , Yuqi Lin , Boxi Wu , Deng Cai

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

We introduce a new convolutional AutoEncoder architecture for user modelling and recommendation tasks with several improvements over the state of the art. Firstly, our model has the flexibility to learn a set of associations and…

机器学习 · 计算机科学 2025-09-10 Antoine Ledent , Petr Kasalický , Rodrigo Alves , Hady W. Lauw