Information Systems (TOIS)


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ACM Transactions on Information Systems (TOIS), Volume 16 Issue 2, April 1998

The knowledge in multiple human relevance judgments
W. John Wilber
Pages: 101-126
DOI: 10.1145/279339.279340
We show first that the pooling of multiple human judgments of relevance provides predictor of relevance that is superior to that obtained from a single human's relevance judgemts. A learning algorithm applied to a set of relevance judgments...

A hypermedia version control framework
David L. Hicks, John J. Leggett, Peter J. Nürnberg, John L. Schnase
Pages: 127-160
DOI: 10.1145/279339.279341
The areas of application of hypermedia technology, combined with the capabilities that hypermedia provides for manipulating structure, create an environment in which version control is very important. A hypermedia version control framework has...

Self-spacial join selectivity estimation using fractal concepts
Alberto Belussi, Christos Faloutsos
Pages: 161-201
DOI: 10.1145/279339.279342
The problem of selectivity estimation for queries of nontraditional databases is still an open issue. In this article, we examine the problem of selectivity estimation for some types of spatial queries in databases containing real...