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In this work, we introduce the notion of Context-Based Prediction Models. A Context-Based Prediction Model determines the probability of a user's action (such as a click or a conversion) solely by relying on user and contextual features,…

Information Retrieval · Computer Science 2023-08-03 Jan Hartman , Assaf Klein , Davorin Kopič , Natalia Silberstein

Predicting the next interaction of a short-term sequence is a challenging task in session-based recommendation (SBR).Multi-behavior session recommendation considers session sequence with multiple interaction types, such as click and…

Information Retrieval · Computer Science 2021-09-27 Qi Shen , Lingfei Wu , Yitong Pang , Yiming Zhang , Zhihua Wei , Fangli Xu , Bo Long

Large Language Models (LLMs) are highly sensitive to their input contexts, motivating the development of automated context engineering. However, existing methods predominantly treat this as a global search problem, seeking a single context…

Computation and Language · Computer Science 2026-05-18 Jiachen Zhu , Zhuoying Ou , Congmin Zheng , Yuxiang Chen , Zeyu Zheng , Rong Shan , Lingyu Yang , Lionel Z. Wang , Weiwen Liu , Yong Yu , Weinan Zhang , Jianghao Lin

This paper formulates the problem of building a context-aware predictive model based on user diverse behavioral activities with smartphones. In the area of machine learning and data science, a tree-like model as that of decision tree is…

Machine Learning · Computer Science 2020-01-06 Iqbal H. Sarker , Alan Colman , Jun Han , Asif Irshad Khan , Yoosef B. Abushark , Khaled Salah

In-context learning is a promising approach for offline reinforcement learning (RL) to handle online tasks, which can be achieved by providing task prompts. Recent works demonstrated that in-context RL could emerge with self-improvement in…

Machine Learning · Computer Science 2024-06-03 Sili Huang , Jifeng Hu , Hechang Chen , Lichao Sun , Bo Yang

The motivations of users to make interactions can be divided into static preference and dynamic interest. To accurately model user representations over time, recent studies in sequential recommendation utilize information propagation and…

Information Retrieval · Computer Science 2023-09-19 Qingtian Bian , Jiaxing Xu , Hui Fang , Yiping Ke

Session-based recommendation (SBR) systems aim to utilize the user's short-term behavior sequence to predict the next item without the detailed user profile. Most recent works try to model the user preference by treating the sessions as…

Information Retrieval · Computer Science 2024-02-20 Zhongwei Wan , Xin Liu , Benyou Wang , Jiezhong Qiu , Boyu Li , Ting Guo , Guangyong Chen , Yang Wang

The timeline of computer vision research is marked with advances in learning and utilizing efficient contextual representations. Most of them, however, are targeted at improving model performance on a single downstream task. We consider a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 David Bruggemann , Menelaos Kanakis , Anton Obukhov , Stamatios Georgoulis , Luc Van Gool

Session-based recommendation focuses on the prediction of user actions based on anonymous sessions and is a necessary method in the lack of user historical data. However, none of the existing session-based recommendation methods explicitly…

Information Retrieval · Computer Science 2020-08-05 Siyi Liu , Yujia Zheng

Predicting a user's preference in a short anonymous interaction session instead of long-term history is a challenging problem in the real-life session-based recommendation, e.g., e-commerce and media stream. Recent research of the…

Information Retrieval · Computer Science 2021-07-12 Ruihong Qiu , Jingjing Li , Zi Huang , Hongzhi Yin

Being able to automatically and quickly understand the user context during a session is a main issue for recommender systems. As a first step toward achieving that goal, we propose a model that observes in real time the diversity brought by…

Information Retrieval · Computer Science 2016-01-11 Sylvain Castagnos , Amaury L 'Huillier , Anne Boyer

E-commerce queries are often short and ambiguous. Consequently, query understanding often uses query rewriting to disambiguate user-input queries. While using e-commerce search tools, users tend to enter multiple searches, which we call…

Information Retrieval · Computer Science 2022-09-27 Simiao Zuo , Qingyu Yin , Haoming Jiang , Shaohui Xi , Bing Yin , Chao Zhang , Tuo Zhao

Context-aware recommender systems (CARSs) apply sensing and analysis of user context in order to provide personalized services. Adding context to a recommendation model is challenging, since the addition of context may increases both the…

Machine Learning · Computer Science 2020-08-07 Amit Livne , Moshe Unger , Bracha Shapira , Lior Rokach

Large Language Models (LLMs) often struggle to maintain their original performance when faced with semantically coherent but task-irrelevant contextual information. Although prior studies have explored this issue using fixed-template or…

Computation and Language · Computer Science 2025-09-23 Yanbo Wang , Zixiang Xu , Yue Huang , Chujie Gao , Siyuan Wu , Jiayi Ye , Pin-Yu Chen , Xiuying Chen , Xiangliang Zhang

Predicting users' preferences based on their sequential behaviors in history is challenging and crucial for modern recommender systems. Most existing sequential recommendation algorithms focus on transitional structure among the sequential…

Information Retrieval · Computer Science 2020-02-06 Jibang Wu , Renqin Cai , Hongning Wang

Modern neural speech models benefit from having longer context, and many approaches have been proposed to increase the maximum context a model can use. However, few have attempted to measure how much context these models actually use, i.e.,…

Sound · Computer Science 2025-05-29 Yen Meng , Sharon Goldwater , Hao Tang

The need for scalable concurrent ordered set data structures with linearizable range query support is increasing due to the rise of multicore computers, data processing platforms and in-memory databases. This paper presents a new concurrent…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-09-05 Kjell Winblad

News recommender systems are aimed to personalize users experiences and help them to discover relevant articles from a large and dynamic search space. Therefore, news domain is a challenging scenario for recommendations, due to its sparse…

Information Retrieval · Computer Science 2018-09-18 Gabriel de Souza P. Moreira , Felipe Ferreira , Adilson Marques da Cunha

We propose a new architecture for adapting a sentence-level sequence-to-sequence transformer by incorporating multiple pretrained document context signals and assess the impact on translation performance of (1) different pretraining…

Computation and Language · Computer Science 2021-08-02 Domenic Donato , Lei Yu , Chris Dyer

Graph neural networks (GNN) have recently been applied to exploit knowledge graph (KG) for recommendation. Existing GNN-based methods explicitly model the dependency between an entity and its local graph context in KG (i.e., the set of its…

Information Retrieval · Computer Science 2020-04-27 Susen Yang , Yong Liu , Yonghui Xu , Chunyan Miao , Min Wu , Juyong Zhang