Information Systems (TOIS)


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ACM Transactions on Information Systems (TOIS), Volume 19 Issue 1, Jan. 2001

An information-theoretic approach to automatic query expansion
Claudio Carpineto, Renato de Mori, Giovanni Romano, Brigitte Bigi
Pages: 1-27
DOI: 10.1145/366836.366860
Techniques for automatic query expansion from top retrieved documents have shown promise for improving retrieval effectiveness on large collections; however, they often rely on an empirical ground, and there is a shortage of cross-system...

A statechart-based model for hypermedia applications
Maria Cristina Ferreira de Oliveira, Marcelo Augusto Santos Turine, Paulo Cesar Masiero
Pages: 28-52
DOI: 10.1145/366836.366869
This paper presents a formal definition for HMBS (Hypermedia Model Based on Statecharts). HMBS uses the structure and execution semantics of statecharts to specify both the structural organization and the browsing semantics of hypermedia...

Approximate spatio-temporal retrieval
Dimitris Papadias, Nikos Mamoulis, Vasilis Delis
Pages: 53-96
DOI: 10.1145/366836.366874
This paper proposes a framework for the handling of spatio-temporal queries with inexact matches, using the concept of relation similarity. We initially describe a binary string encoding for 1D relations that permits the automatic derivation of...