Context awareness

About: Context awareness is a research topic. Over the lifetime, 5790 publications have been published within this topic receiving 119944 citations.

A Short Survey on Decision Making for Task Migrations in Mobile Cloud Environments

Abstract: Mobile cloud computing (MCC) is a new converged computing paradigm. The central idea of MCC is to use powerful backend computing nodes to enhance capabilities of small devices. An effective approach to realize this is to use task migrations. There are already a number of research efforts to MCC helping to make decisions for task migrations. In this paper, we make a short survey on decision making for task migrations in MCC. From the survey we found that there are still some challenges such as comprehensive context-awareness, migration standards, and large scale experiments and good algorithms are needed to support task migration. The objective of this paper is to highlight these issues and challenges to attract more efforts to these questions.

Context-Awareness in mobile web services

Abstract: Context-aware computing is a computing paradigm in which applications can take advantage of contextual information. Quality of network connection is a very important factor for mobile web services. However, the conditions of mobile networks may change frequently and dynamically. Thus, providing support for context-aware applications is especially important in mobile web services. Recently, a number of architectures supporting context-aware applications have been developed, but little attention is paid to the special requirements of mobile devices which particularly have many constraints. This paper discusses a client-proxy-server architecture that supports context-awareness by considering types of device, network and application characteristics. The contribution of this paper mainly lies in the division of labor between proxy and server. Application specific proxy is used to tailor the original resource based on the mobile user's context information. To prove the feasibility, a context-aware image management system is designed and realized.

Describing and Recognizing Patterns of Events in Smart Environments With Description Logic

Abstract: This paper describes a system for context awareness in smart environments, which is based on an ontology expressed in description logic and implemented in OWL 2 EL, which is a subset of the Web Ontology Language that allows for reasoning in polynomial time. The approach is different from all other works in the literature since the proposed system requires only the basic reasoning mechanisms of description logic, i.e., subsumption and instance checking, without any additional external reasoning engine. Experiments performed with data collected in three different scenarios are described, i.e., the CASAS Project at Washington State University, the assisted living facility Villa Basilea in Genoa, and the Merry Porter mobile robot at the Polyclinic of Modena.

Potentials and Challenges of Context-Awareness for Learning Solutions.

Abstract: Current e-learning systems fail to take into account the situation of the learner appropriately although there is a big potential for improving those systems. This paper tries to summarize the potentials and highlight the key challenges of context-aware learning systems. It also presents some steps towards mastering the challenges.