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ACM Transactions on Information Systems (TOIS), Volume 23 Issue 3, July 2005

A market-based approach to recommender systems
Yan Zheng Wei, Luc Moreau, Nicholas R. Jennings
Pages: 227-266
DOI: 10.1145/1080343.1080344
Recommender systems have been widely advocated as a way of coping with the problem of information overload for knowledge workers. Given this, multiple recommendation methods have been developed. However, it has been shown that no one technique is...

A novel document retrieval method using the discrete wavelet transform
Laurence A. F. Park, Kotagiri Ramamohanarao, Marimuthu Palaniswami
Pages: 267-298
DOI: 10.1145/1080343.1080345
Current information retrieval methods either ignore the term positions or deal with exact term positions; the former can be seen as coarse document resolution, the latter as fine document resolution. We propose a new spectral-based information...

Trustworthy 100-year digital objects: durable encoding for when it's too late to ask
H. M. Gladney, R. A. Lorie
Pages: 299-324
DOI: 10.1145/1080343.1080346
How can an author store digital information so that it will be reliably intelligible, even years later when he or she is no longer available to answer questions? Methods that might work are not good enough; what is preserved today should be...

Evaluating implicit feedback models using searcher simulations
Ryen W. White, Ian Ruthven, Joemon M. Jose, C. J. Van Rijsbergen
Pages: 325-361
DOI: 10.1145/1080343.1080347
In this article we describe an evaluation of relevance feedback (RF) algorithms using searcher simulations. Since these algorithms select additional terms for query modification based on inferences made from searcher interaction, not on relevance...