id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ital-3169	Morales-del-Castillo, J. M.; Pedraza-Jiménez, R.; Peis, E.; Herrera-Viedma, E.	A Semantic Model of Selective Dissemination of Information for Digital Libraries	2009-03-01	10	.pdf	application/pdf	7275	279	43	Elements of the model There are four basic elements that make up the system: 24 INFORMATION TECHNOLOGY AND LIBRARIES | MARCH 2009 the thesaurus, user profiles, RSS feeds, and recommenda- tion log files. User profiles are meant to store long-term prefer- ences, but the system must be able to detect any subtle change in these preferences over time to offer accurate recommendations.	cache/ital-3169.pdf	txt/ital-3169.txt