Article Abstract

	Title:	Persistent queries over dynamic text streams
	Author:	Javed Aslam, Ekaterina Pelekhov, Daniela Rus
	Address:	College of Computer Science, Northeastern University, Boston, MA, USA. ' Department of Computer Science, Dartmouth College, Hanover, NH, USA. ' Department of EECS, MIT and Dartmouth, Boston, MA, USA
	Journal:	International Journal of Electronic Business 2005 - Vol. 3, No.3/4  pp. 288 - 299
	Abstract:	We wish to develop automated tools for information organisation that support information processing in the age of information overload. We present a filtering-based approach to persistent queries that uses clustering. We use the online version of the star algorithm developed in our previous work as our clustering tool because this algorithm computes, with high precision, naturally occurring topics in a collection and it admits an efficient online solution for dynamic streams of text. We describe the principle behind the filtering algorithms and show experimental data. We then discuss a system that uses these algorithms in support of information push by allowing users to submit persistent queries. Finally, we evaluate the persistent query system using TREC data.
	Keywords:	information retrieval; filtering; persistent queries; information processing; clustering; e-business; electronic business; dynamic text streams; digital collections; browsable hierarchies; star algorithm.
	DOI:	10.1504/IJEB.2005.007273
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