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When a user connects to the Internet to fulfill his needs, he often encounters a huge amount of related information. Recommender systems are the techniques for massively filtering information and offering the items that users find them…

Machine Learning · Computer Science 2021-07-15 Mahdi Kherad , Amir Jalaly Bidgoly

Personalized recommendations for new users, also known as the cold-start problem, can be formulated as a contextual bandit problem. Existing contextual bandit algorithms generally rely on features alone to capture user variability. Such…

Machine Learning · Computer Science 2016-04-25 Li Zhou , Emma Brunskill

Addressing the cold-start issue in content recommendation remains a critical ongoing challenge. In this work, we focus on tackling the cold-start problem for movies on a large entertainment platform. Our primary goal is to forecast the…

Information Retrieval · Computer Science 2025-05-06 Shaghayegh Agah , Yejin Kim , Neeraj Sharma , Mayur Nankani , Kevin Foley , H. Howie Huang , Sardar Hamidian

Recommender Systems are a subclass of machine learning systems that employ sophisticated information filtering strategies to reduce the search time and suggest the most relevant items to any particular user. Hybrid recommender systems…

Information Retrieval · Computer Science 2022-07-20 Pratik K. Biswas , Songlin Liu

In recommender systems, a cold-start problem occurs when there is no past interaction record associated with the user or item. Typical solutions to the cold-start problem make use of contextual information, such as user demographic…

Information Retrieval · Computer Science 2021-06-07 Yihong Zhang , Takuya Maekawa , Takahiro Hara

In light of the emergence of deep reinforcement learning (DRL) in recommender systems research and several fruitful results in recent years, this survey aims to provide a timely and comprehensive overview of the recent trends of deep…

Information Retrieval · Computer Science 2021-09-10 Xiaocong Chen , Lina Yao , Julian McAuley , Guanglin Zhou , Xianzhi Wang

Click-Through Rate (CTR) prediction on cold users is a challenging task in recommender systems. Recent researches have resorted to meta-learning to tackle the cold-user challenge, which either perform few-shot user representation learning…

Information Retrieval · Computer Science 2022-10-31 Yanyan Shen , Lifan Zhao , Weiyu Cheng , Zibin Zhang , Wenwen Zhou , Kangyi Lin

The application of machine learning techniques to large-scale personalized recommendation problems is a challenging task. Such systems must make sense of enormous amounts of implicit feedback in order to understand user preferences across…

Information Retrieval · Computer Science 2019-01-15 Thom Lake , Sinead A. Williamson , Alexander T. Hawk , Christopher C. Johnson , Benjamin P. Wing

We develop a novel latent-bandit algorithm for tackling the cold-start problem for new users joining a recommender system. This new algorithm significantly outperforms the state of the art, simultaneously achieving both higher accuracy and…

Information Retrieval · Computer Science 2023-05-31 David Young , Douglas Leith

Recommender systems often rely on models which are trained to maximize accuracy in predicting user preferences. When the systems are deployed, these models determine the availability of content and information to different users. The gap…

Machine Learning · Computer Science 2021-02-02 Sarah Dean , Sarah Rich , Benjamin Recht

Deep learning-based recommendation has become a widely adopted technique in various online applications. Typically, a deployed model undergoes frequent re-training to capture users' dynamic behaviors from newly collected interaction logs.…

Information Retrieval · Computer Science 2022-04-26 Guohao Cai , Jieming Zhu , Quanyu Dai , Zhenhua Dong , Xiuqiang He , Ruiming Tang , Rui Zhang

In this paper, we develop a recommender system for a game that suggests potential items to players based on their interactive behaviors to maximize revenue for the game provider. Our approach is built on a reinforcement learning-based…

Artificial Intelligence · Computer Science 2021-11-18 Hung Nguyen , Minh Nguyen , Long Pham , Jennifer Adorno Nieves

Recommender systems serves as an important technical asset in many modern companies. With the increasing demand for higher precision of the technology, more and more research and investment has been allocated to the field. One important…

Information Retrieval · Computer Science 2023-03-14 Hao Wang

We introduce a new sequential transformer reinforcement learning architecture RLT4Rec and demonstrate that it achieves excellent performance in a range of item recommendation tasks. RLT4Rec uses a relatively simple transformer architecture…

Information Retrieval · Computer Science 2024-12-11 Dilina Chandika Rajapakse , Douglas Leith

The design of recommendations strategies in the adaptive learning system focuses on utilizing currently available information to provide individual-specific learning instructions for learners. As a critical motivate for human behaviors,…

Computers and Society · Computer Science 2019-10-29 Ruijian Han , Kani Chen , Chunxi Tan

Recommender systems have become an essential tool to help resolve the information overload problem in recent decades. Traditional recommender systems, however, suffer from data sparsity and cold start problems. To address these issues, a…

Information Retrieval · Computer Science 2020-07-21 Zhu Sun , Qing Guo , Jie Yang , Hui Fang , Guibing Guo , Jie Zhang , Robin Burke

With the rise of e-commerce and short videos, online recommender systems that can capture users' interests and update new items in real-time play an increasingly important role. In both online and offline recommendation systems, the…

Information Retrieval · Computer Science 2025-05-07 Yunze Luo , Yuezihan Jiang , Yinjie Jiang , Gaode Chen , Jingchi Wang , Kaigui Bian , Peiyi Li , Qi Zhang

In practical scenarios, the effectiveness of sequential recommendation systems is hindered by the user cold-start problem, which arises due to limited interactions for accurately determining user preferences. Previous studies have attempted…

Information Retrieval · Computer Science 2023-07-27 Mohammmadmahdi Maheri , Reza Abdollahzadeh , Bardia Mohammadi , Mina Rafiei , Jafar Habibi , Hamid R. Rabiee

Cold start scenarios present fundamental obstacles to effective recommendation generation, particularly when dealing with users lacking interaction history or items with sparse metadata. This research proposes an innovative hybrid framework…

Computation and Language · Computer Science 2026-03-05 Nikita Zmanovskii

Modern recommender systems aim to improve user experience. As reinforcement learning (RL) naturally fits this objective -- maximizing an user's reward per session -- it has become an emerging topic in recommender systems. Developing…

Information Retrieval · Computer Science 2022-06-16 Xin Xin , Tiago Pimentel , Alexandros Karatzoglou , Pengjie Ren , Konstantina Christakopoulou , Zhaochun Ren