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Top-$N$ sequential recommendation models each user as a sequence of items interacted in the past and aims to predict top-$N$ ranked items that a user will likely interact in a `near future'. The order of interaction implies that sequential…

Information Retrieval · Computer Science 2018-09-21 Jiaxi Tang , Ke Wang

Sequential modelling entails making sense of sequential data, which naturally occurs in a wide array of domains. One example is systems that interact with users, log user actions and behaviour, and make recommendations of items of potential…

Information Retrieval · Computer Science 2021-09-15 Christian Hansen

In order to develop effective sequential recommenders, a series of sequence representation learning (SRL) methods are proposed to model historical user behaviors. Most existing SRL methods rely on explicit item IDs for developing the…

Information Retrieval · Computer Science 2022-06-14 Yupeng Hou , Shanlei Mu , Wayne Xin Zhao , Yaliang Li , Bolin Ding , Ji-Rong Wen

At the present time, sequential item recommendation models are compared by calculating metrics on a small item subset (target set) to speed up computation. The target set contains the relevant item and a set of negative items that are…

Information Retrieval · Computer Science 2021-07-29 Alexander Dallmann , Daniel Zoller , Andreas Hotho

Recommender systems support decisions in various domains ranging from simple items such as books and movies to more complex items such as financial services, telecommunication equipment, and software systems. In this context,…

Information Retrieval · Computer Science 2021-02-15 Alexander Felfernig , Viet-Man Le , Andrei Popescu , Mathias Uta , Thi Ngoc Trang Tran , Müslüum Atas

Sequential recommendation involves automatically recommending the next item to users based on their historical item sequence. While most prior research employs RNN or transformer methods to glean information from the item…

Information Retrieval · Computer Science 2024-10-10 Xiaofan Zhou

Sequential patterns play an important role in building modern recommender systems. To this end, several recommender systems have been built on top of Markov Chains and Recurrent Models (among others). Although these sequential models have…

Information Retrieval · Computer Science 2019-08-28 An Yan , Shuo Cheng , Wang-Cheng Kang , Mengting Wan , Julian McAuley

Online e-commerce platforms have been extending in-store shopping, which allows users to keep the canonical online browsing and checkout experience while exploring in-store shopping. However, the growing transition between online and…

Modern recommender systems perform large-scale retrieval by first embedding queries and item candidates in the same unified space, followed by approximate nearest neighbor search to select top candidates given a query embedding. In this…

Recommender systems are important and powerful tools for various personalized services. Traditionally, these systems use data mining and machine learning techniques to make recommendations based on correlations found in the data. However,…

Information Retrieval · Computer Science 2023-01-11 Shuyuan Xu , Jianchao Ji , Yunqi Li , Yingqiang Ge , Juntao Tan , Yongfeng Zhang

A good number of toolkits have been developed in Recommender Systems (RecSys) research to promote fair evaluation and reproducibility. However, recent critical examinations of RecSys evaluation protocols have raised concerns regarding the…

Information Retrieval · Computer Science 2026-04-16 Tze-Kean Ng , Joshua Teng-Khing Khoo , Aixin Sun

Sequential recommendation refers to recommending the next item of interest for a specific user based on his/her historical behavior sequence up to a certain time. While previous research has extensively examined Markov chain-based…

Information Retrieval · Computer Science 2025-01-06 DongYu Du , Yue Chan

Recommender systems play a pivotal role in helping users navigate an overwhelming selection of products and services. On online platforms, users have the opportunity to share feedback in various modes, including numerical ratings, textual…

Information Retrieval · Computer Science 2025-05-27 Emrul Hasan , Mizanur Rahman , Chen Ding , Jimmy Xiangji Huang , Shaina Raza

Sequence classification is an important data mining task in many real world applications. Over the past few decades, many sequence classification methods have been proposed from different aspects. In particular, the pattern-based method is…

Machine Learning · Computer Science 2020-12-15 Zengyou He , Guangyao Xu , Chaohua Sheng , Bo Xu , Quan Zou

Recommender systems are tools that support online users by pointing them to potential items of interest in situations of information overload. In recent years, the class of session-based recommendation algorithms received more attention in…

Information Retrieval · Computer Science 2020-09-29 Malte Ludewig , Noemi Mauro , Sara Latifi , Dietmar Jannach

Sequential recommendations have drawn significant attention in modeling the user's historical behaviors to predict the next item. With the booming development of multimodal data (e.g., image, text) on internet platforms, sequential…

Information Retrieval · Computer Science 2024-12-12 Changhong Li , Zhiqiang Guo

Many modern sequential recommender systems use deep neural networks, which can effectively estimate the relevance of items but require a lot of time to train. Slow training increases expenses, hinders product development timescales and…

Information Retrieval · Computer Science 2022-07-18 Aleksandr Petrov , Craig Macdonald

With the development of the online education system, personalized education recommendation has played an essential role. In this paper, we focus on developing path recommendation systems that aim to generating and recommending an entire…

Information Retrieval · Computer Science 2023-06-08 Xianyu Chen , Jian Shen , Wei Xia , Jiarui Jin , Yakun Song , Weinan Zhang , Weiwen Liu , Menghui Zhu , Ruiming Tang , Kai Dong , Dingyin Xia , Yong Yu

Recommender systems are a vital tool that helps us to overcome the information overload problem. They are being used by most e-commerce web sites and attract the interest of a broad scientific community. A recommender system uses data on…

Information Retrieval · Computer Science 2017-02-22 Fei Yu , An Zeng , Sebastien Gillard , Matus Medo

Ranking is a central task in machine learning and information retrieval. In this task, it is especially important to present the user with a slate of items that is appealing as a whole. This in turn requires taking into account interactions…

Information Retrieval · Computer Science 2019-03-21 Irwan Bello , Sayali Kulkarni , Sagar Jain , Craig Boutilier , Ed Chi , Elad Eban , Xiyang Luo , Alan Mackey , Ofer Meshi