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Online healthcare consultations have transformed how patients seek medical advice, offering convenience while introducing new challenges for ensuring consultation success. Predicting whether an online consultation will be successful is…

Machine Learning · Computer Science 2025-11-03 Shuang Geng , Wenli Zhang , Jiaheng Xie , Gemin Liang , Ben Niu , Sudha Ram

In e-commerce, where users face a vast array of possible item choices, recommender systems are vital for helping them discover suitable items they might otherwise overlook. While many recommender systems primarily rely on a user's purchase…

Information Retrieval · Computer Science 2025-08-29 Kyungho Kim , Sunwoo Kim , Geon Lee , Kijung Shin

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

The ongoing rapid expansion of the Internet greatly increases the necessity of effective recommender systems for filtering the abundant information. Extensive research for recommender systems is conducted by a broad range of communities…

Physics and Society · Physics 2015-06-04 Linyuan Lü , Matus Medo , Chi Ho Yeung , Yi-Cheng Zhang , Zi-Ke Zhang , Tao Zhou

Recommender systems have become increasingly important with the rise of the web as a medium for electronic and business transactions. One of the key drivers of this technology is the ease with which users can provide feedback about their…

Information Retrieval · Computer Science 2024-11-05 Dong Li

In modern recommender systems, sequential recommendation leverages chronological user behaviors to make effective next-item suggestions, which suffers from data sparsity issues, especially for new users. One promising line of work is the…

Information Retrieval · Computer Science 2023-11-15 Guanyu Lin , Chen Gao , Yu Zheng , Jianxin Chang , Yanan Niu , Yang Song , Kun Gai , Zhiheng Li , Depeng Jin , Yong Li , Meng Wang

E-commerce web applications are almost ubiquitous in our day to day life, however as useful as they are, most of them have little to no adaptation to user needs, which in turn can cause both lower conversion rates as well as unsatisfied…

Information Retrieval · Computer Science 2019-05-30 Mihai Cristian Pîrvu , Alexandra Anghel

Conversational information access is an emerging research area. Currently, human evaluation is used for end-to-end system evaluation, which is both very time and resource intensive at scale, and thus becomes a bottleneck of progress. As an…

Information Retrieval · Computer Science 2020-06-17 Shuo Zhang , Krisztian Balog

The use of relevant metrics of software systems could improve various software engineering tasks, but identifying relationships among metrics is not simple and can be very time consuming. Recommender systems can help with this…

Software Engineering · Computer Science 2018-01-23 Maral Azizi , Hyunsook Do

Searching for and making decisions about information is becoming increasingly difficult as the amount of information and number of choices increases. Recommendation systems help users find items of interest of a particular type, such as…

Information Retrieval · Computer Science 2011-07-04 M. H. Goker , P. Langley , C. A. Thompson

Modern online services continuously generate data at very fast rates. This continuous flow of data encompasses content - e.g., posts, news, products, comments -, but also user feedback - e.g., ratings, views, reads, clicks -, together with…

Information Retrieval · Computer Science 2022-01-19 João Vinagre , Alípio Mário Jorge , Marie Al-Ghossein , Albert Bifet

Sequential recommender models are essential components of modern industrial recommender systems. These models learn to predict the next items a user is likely to interact with based on his/her interaction history on the platform. Most…

Information Retrieval · Computer Science 2023-03-28 Bo Chang , Alexandros Karatzoglou , Yuyan Wang , Can Xu , Ed H. Chi , Minmin Chen

Automated recommendations can nowadays be found on many e-commerce platforms, and such recommendations can create substantial value for consumers and providers. Often, however, not all recommendable items have the same profit margin, and…

Social and Information Networks · Computer Science 2022-09-12 Nada Ghanem , Stephan Leitner , Dietmar Jannach

In real-world applications, users always interact with items in multiple aspects, such as through implicit binary feedback (e.g., clicks, dislikes, long views) and explicit feedback (e.g., comments, reviews). Modern recommendation systems…

Information Retrieval · Computer Science 2025-08-26 Shuo Yang , Jiangxia Cao , Haipeng Li , Yuqi Mao , Shuchao Pang

With information systems becoming larger scale, recommendation systems are a topic of growing interest in machine learning research and industry. Even though progress on improving model design has been rapid in research, we argue that many…

Information Retrieval · Computer Science 2022-11-14 Tobias Schnabel , Mengting Wan , Longqi Yang

Large eCommerce players introduced comparison tables as a new type of recommendations. However, building comparisons at scale without pre-existing training/taxonomy data remains an open challenge, especially within the operational…

Information Retrieval · Computer Science 2021-07-09 Patrick John Chia , Bingqing Yu , Jacopo Tagliabue

Deep learning based methods have been widely used in industrial recommendation systems (RSs). Previous works adopt an Embedding&MLP paradigm: raw features are embedded into low-dimensional vectors, which are then fed on to MLP for final…

Information Retrieval · Computer Science 2019-05-17 Qiwei Chen , Huan Zhao , Wei Li , Pipei Huang , Wenwu Ou

Sequential recommendation, a critical task in recommendation systems, predicts the next user action based on the understanding of the user's historical behaviors. Conventional studies mainly focus on cross-behavior modeling with…

Information Retrieval · Computer Science 2025-06-23 Zhen Gong , Zhifang Fan , Hui Lu , Qiwei Chen , Chenbin Zhang , Lin Guan , Yuchao Zheng , Feng Zhang , Xiao Yang , Zuotao Liu

All learning algorithms for recommendations face inevitable and critical trade-off between exploiting partial knowledge of a user's preferences for short-term satisfaction and exploring additional user preferences for long-term coverage.…

Information Retrieval · Computer Science 2021-08-13 Kihwan Kim

Recommender systems often benefit from complex feature embeddings and deep learning algorithms, which deliver sophisticated recommendations that enhance user experience, engagement, and revenue. However, these methods frequently reduce the…

Information Retrieval · Computer Science 2025-09-15 Irina Arévalo , Jose L Salmeron