id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_n7zhtbswl5eszhdm2xnqmlykym	Juha Puustjarvi	Information Retrieval in Virtual Universities	2005	13	.pdf	application/pdf	6904	625	61	as it provides similarity measure (i.e., the learning object having the best match is presented Keywords: algorithms; case study; distance learning; information retrieval; Web-based building virtual universities, whilst facing competition from the commercial continuing education providers in the form of e-learning. Educational metadata is needed for improving the retrieval of learning objects, for learning objects, and for supporting the decision process of the learners looking for educaJournal of Distance Education Technologies, 4(3), 36-47, July-September 2006 41 Now, if a learner presents the query "D and (B or H.1)" (i.e., learning objects having the keyword "Software" and Using the vector model in a virtual university requires that the course provider assign the metadata items and their weights into The gain of attaching metadata description for learning objects is that we can use mathematical distance measures in computing learners' queries. compute the distance measures of learning objects and learners' queries.	./cache/work_n7zhtbswl5eszhdm2xnqmlykym.pdf	./txt/work_n7zhtbswl5eszhdm2xnqmlykym.txt