id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_jt4hkqjjjvf6rll3zjt3z4qbwi	Jong-yi Hong	Context-aware systems: A literature review and classification	2009	14	.pdf	application/pdf	15085	1667	56	Nowadays, numerous journals and conferences have published articles related to context-aware systems, This paper is based on a literature review of context-aware systems from 2000 to 2007 using a keyword index and article title search. developed based on the architecture of context-aware systems, which consists of the following five layers: concept and research layer, network layer, middleware layer, application layer and user infrastructure layer. systems and introduced various existent middleware and serverbased approaches to ease the development of context-aware applications, where each layer is explained based on various research. context information; (3) based below layers, application layer provides users with appropriate service; and (4) to offer suitable interFig. 3. The classification framework is developed for classifying the literatures related with context-aware systems, based on the abstract layer involves overview, algorithm, development guideline, framework, context data management, evaluation and privacy and security categories. Context-aware systems can provide users with better service based on analyzing	./cache/work_jt4hkqjjjvf6rll3zjt3z4qbwi.pdf	./txt/work_jt4hkqjjjvf6rll3zjt3z4qbwi.txt