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Visually impaired people are often confronted with new environments and they find themselves face to face with an innumerous amount of difficulties when facing these environments. Having to surpass and deal with these difficulties that…

Human-Computer Interaction · Computer Science 2014-02-07 Ivo Rafael

Trust plays an important role in making collaborative decisions about service evaluation and service selection in pervasive computing. Context is a fundamental concept in pervasive systems, which is based on the interpretation of…

Cryptography and Security · Computer Science 2009-11-04 Negin Razavi , Amir Masoud Rahmani , Mehran Mohsenzadeh

Contextual utility theory integrates context-sensitive factors into utility-based decision-making models. It stresses the importance of understanding individual decision-makers' preferences, values, and beliefs and the situational factors…

Human-Computer Interaction · Computer Science 2023-03-27 Minal Suresh Patil , Kary Främling

An important approach for efficient inference in probabilistic graphical models exploits symmetries among objects in the domain. Symmetric variables (states) are collapsed into meta-variables (meta-states) and inference algorithms are run…

Artificial Intelligence · Computer Science 2016-07-01 Ankit Anand , Aditya Grover , Mausam , Parag Singla

We study question answering over a dynamic textual environment. Although neural network models achieve impressive accuracy via learning from input-output examples, they rarely leverage various types of knowledge and are generally not…

Computation and Language · Computer Science 2020-04-28 Wanjun Zhong , Duyu Tang , Nan Duan , Ming Zhou , Jiahai Wang , Jian Yin

Graphs are widely used in various fields of computer science. They have also found application in unrelated areas, leading to a diverse range of problems. These problems can be modeled as relationships between entities in various contexts,…

Data Structures and Algorithms · Computer Science 2024-05-20 Davide Rucci

Runtime uncertainty such as unpredictable resource unavailability, changing environmental conditions and user needs, as well as system intrusions or faults represents one of the main current challenges of self-adaptive systems. Moreover,…

Software Engineering · Computer Science 2018-03-07 Edith Zavala , Xavier Franch , Jordi Marco , Alessia Knauss , Daniela Damian

People's social relationships are often manifested through their surroundings, with certain objects or interactions acting as symbols for specific relationships, e.g., wedding rings, roses, hugs, or holding hands. This brings unique…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Shiwei Wu , Chao Zhang , Joya Chen , Tong Xu , Likang Wu , Yao Hu , Enhong Chen

Large language models (LLMs) have become phenomenally surging, since 2018--two decades after introducing context-awareness into computing systems. Through taking into account the situations of ubiquitous devices, users and the societies,…

Computation and Language · Computer Science 2023-12-27 Haoyi Xiong , Jiang Bian , Sijia Yang , Xiaofei Zhang , Linghe Kong , Daqing Zhang

We present ConXsense, the first framework for context-aware access control on mobile devices based on context classification. Previous context-aware access control systems often require users to laboriously specify detailed policies or they…

Cryptography and Security · Computer Science 2014-06-06 Markus Miettinen , Stephan Heuser , Wiebke Kronz , Ahmad-Reza Sadeghi , N. Asokan

We discuss the process of building semantic maps, how to interactively label entities in them, and how to use them to enable context-aware navigation behaviors in human environments. We utilize planar surfaces, such as walls and tables, and…

Robotics · Computer Science 2018-08-15 Akansel Cosgun , Henrik Christensen

Recent studies on knowledge graph embedding focus on mapping entities and relations into low-dimensional vector spaces. While most existing models primarily exploit structural information, knowledge graphs also contain rich contextual and…

Computation and Language · Computer Science 2025-09-03 Qisong Li , Ji Lin , Sijia Wei , Neng Liu

To uncover the city's fundamental functioning mechanisms, it is important to acquire a deep understanding of complicated relationships among citizens, location, and mobility behaviors. Previous research studies have applied direct…

Artificial Intelligence · Computer Science 2025-03-11 Tao Feng , Yunke Zhang , Xiaochen Fan , Huandong Wang , Yong Li

Learning to cooperate is crucially important in multi-agent environments. The key is to understand the mutual interplay between agents. However, multi-agent environments are highly dynamic, where agents keep moving and their neighbors…

Machine Learning · Computer Science 2020-02-12 Jiechuan Jiang , Chen Dun , Tiejun Huang , Zongqing Lu

Search-based recommendation is one of the most critical application scenarios in e-commerce platforms. Users' complex search contexts--such as spatiotemporal factors, historical interactions, and current query's information--constitute an…

Information Retrieval · Computer Science 2026-02-16 Zhiding Liu , Ben Chen , Mingyue Cheng , Enhong Chen , Li Li , Chenyi Lei , Wenwu Ou , Han Li , Kun Gai

We present a context-aware neural ranking model to exploit users' on-task search activities and enhance retrieval performance. In particular, a two-level hierarchical recurrent neural network is introduced to learn search context…

Information Retrieval · Computer Science 2019-06-07 Wasi Uddin Ahmad , Kai-Wei Chang , Hongning Wang

Learning personalization has proven its effectiveness in enhancing learner performance. Therefore, modern digital learning platforms have been increasingly depending on recommendation systems to offer learners personalized suggestions of…

Human-Computer Interaction · Computer Science 2023-12-19 Hasan Abu-Rasheed , Christian Weber , Madjid Fathi

Pervasive services may be defined as services that are available "to any client (anytime, anywhere)". Here we focus on the software and network infrastructure required to support pervasive contextual services operating over a wide area. One…

Distributed, Parallel, and Cluster Computing · Computer Science 2010-06-25 Graham Kirby , Alan Dearle , Ron Morrison , Mark Dunlop , Richard Connor , Paddy Nixon

Personalized messaging plays an essential role in improving communication in areas such as healthcare, education, and professional engagement. This paper introduces a framework that uses the Knowledge Graph (KG) to dynamically rephrase…

Artificial Intelligence · Computer Science 2025-03-19 Rajeev Kumar , Harishankar Kumar , Kumari Shalini

With the tremendous growth in the number of scientific papers being published, searching for references while writing a scientific paper is a time-consuming process. A technique that could add a reference citation at the appropriate place…

Computation and Language · Computer Science 2019-03-18 Chanwoo Jeong , Sion Jang , Hyuna Shin , Eunjeong Park , Sungchul Choi