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A smart home can be considered a place of residence that enables the management of appliances and systems to help with day-to-day life by automated technology. In the current paper is described a prototype that simulates a context-aware…

Multiagent Systems · Computer Science 2023-04-19 Mohammad Rasras , Iuliana Marin , Serban Radu

Recommender systems are central to online services, enabling users to navigate through massive amounts of content across various domains. However, their evaluation remains challenging due to the disconnect between offline metrics and online…

Information Retrieval · Computer Science 2026-04-14 Nicolas Bougie , Gian Maria Marconi , Xiaotong Ye , Narimasa Watanabe

Context awareness is the most important research area in ubiquitous computing. In particular, for smart home, context awareness attempts to bring the best services to the home habitants. However, the implementation in the real environment…

Networking and Internet Architecture · Computer Science 2010-07-09 Tam Van Nguyen , Huy Nguyen , Deokjai Choi

Recommender systems often struggle with data sparsity and cold-start scenarios, limiting their ability to provide accurate suggestions for new or infrequent users. This paper presents a Graph Attention Network (GAT) based Collaborative…

Information Retrieval · Computer Science 2025-10-31 Danial Ebrat , Sepideh Ahmadian , Luis Rueda

Dealing with broadcast scenarios has become a relevant topic in the scientific community. Because of interference, resource management presents a challenge, specially when spatial diversity is introduced. Many researches presented…

Signal Processing · Electrical Eng. & Systems 2020-07-17 Pol Henarejos

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,…

Machine Learning · Computer Science 2022-08-10 Amit Livne , Eliad Shem Tov , Adir Solomon , Achiya Elyasaf , Bracha Shapira , Lior Rokach

The pursuit of improved accuracy in recommender systems has led to the incorporation of user context. Context-aware recommender systems typically handle large amounts of data which must be uploaded and stored on the cloud, putting the…

Information Retrieval · Computer Science 2019-09-30 Benu Madhab Changmai , Divija Nagaraju , Debi Prasanna Mohanty , Kriti Singh , Kunal Bansal , Sukumar Moharana

Highly dynamic computing environments, like ubiquitous and pervasive computing environments, require frequent adaptation of applications. Context is a key to adapt suiting user needs. On the other hand, standard access control trusts users…

Cryptography and Security · Computer Science 2011-02-28 Jean-Yves Tigli , Stephane Lavirotte , Gaetan Rey , Vincent Hourdin , Michel Riveill

This paper describes the solution of Shanda Innovations team to Task 1 of KDD-Cup 2012. A novel approach called Multifaceted Factorization Models is proposed to incorporate a great variety of features in social networks. Social…

Information Retrieval · Computer Science 2021-05-04 Yunwen Chen , Zuotao Liu , Daqi Ji , Yingwei Xin , Wenguang Wang , Lu Yao , Yi Zou

Nowadays computing becomes increasingly mobile and pervasive. One of the important steps in pervasive computing is context-awareness. Context-aware pervasive systems rely on information about the context and user preferences to adapt their…

Networking and Internet Architecture · Computer Science 2010-07-09 Tam Van Nguyen , Wontaek Lim , Huy Nguyen , Deokjai Choi

Due the success of emerging Web 2.0, and different social network Web sites such as Amazon and movie lens, recommender systems are creating unprecedented opportunities to help people browsing the web when looking for relevant information,…

Social and Information Networks · Computer Science 2015-07-21 Khaled Sellami , Mohamed Ahmed-Nacer , Pierre Tiako

This work presents a novel architecture for context-aware interactions within smart environments, leveraging Large Language Models (LLMs) to enhance user experiences. Our system integrates user location data obtained through UWB tags and…

Computation and Language · Computer Science 2025-02-21 Aurora Polo-Rodríguez , Laura Fiorini , Erika Rovini , Filippo Cavallo , Javier Medina-Quero

How to predict precise user preference and how to make efficient retrieval from a big corpus are two major challenges of large-scale industrial recommender systems. In tree-based methods, a tree structure T is adopted as index and each item…

Information Retrieval · Computer Science 2021-09-23 Daqing Chang , Jintao Liu , Ziru Xu , Han Li , Han Zhu , Xiaoqiang Zhu

Session-based recommender systems aim to improve recommendations in short-term sessions that can be found across many platforms. A critical challenge is to accurately model user intent with only limited evidence in these short sessions. For…

Information Retrieval · Computer Science 2021-12-30 Jianling Wang , Kaize Ding , Ziwei Zhu , James Caverlee

A significant part of CO2 emissions is due to high electricity consumption in residential buildings. Using load shifting can help to improve the households' energy efficiency. To nudge changes in energy consumption behavior, simple but…

Multiagent Systems · Computer Science 2022-05-06 Valentyna Riabchuk , Leon Hagel , Felix Germaine , Alona Zharova

Recommender systems help users deal with information overload by providing tailored item suggestions to them. The recommendation of news is often considered to be challenging, since the relevance of an article for a user can depend on a…

Information Retrieval · Computer Science 2019-12-10 Gabriel de Souza Pereira Moreira , Dietmar Jannach , Adilson Marques da Cunha

Context and context-awareness provides computing environments with the ability to usefully adapt the services or information they provide. It is the ability to implicitly sense and automatically derive the user needs that separates…

Information Retrieval · Computer Science 2007-05-23 Paul Prekop , Mark Burnett

Recommender systems (RSs) are essential for e-commerce platforms to help meet the enormous needs of users. How to capture user interests and make accurate recommendations for users in heterogeneous e-commerce scenarios is still a continuous…

Information Retrieval · Computer Science 2020-12-17 Yuting Chen , Yanshi Wang , Yabo Ni , An-Xiang Zeng , Lanfen Lin

Applications like personal assistants need to be aware ofthe user's context, e.g., where they are, what they are doing, and with whom. Context information is usually inferred from sensor data, like GPS sensors and accelerometers on the…

Artificial Intelligence · Computer Science 2020-11-20 Qiang Shen , Stefano Teso , Wanyi Zhang , Hao Xu , Fausto Giunchiglia

Detecting mixed-critical events through computer vision is challenging due to the need for contextual understanding to assess event criticality accurately. Mixed critical events, such as fires of varying severity or traffic incidents,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Filza Akhlaq , Alina Arshad , Muhammad Yehya Hayati , Jawwad A. Shamsi , Muhammad Burhan Khan