Information Systems (TOIS)


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ACM Transactions on Information Systems (TOIS), Volume 23 Issue 1, January 2005

Introduction to genomic information retrieval
Hugh E. Williams
Pages: 1-2
DOI: 10.1145/1055709.1055710

An efficient normalized maximum likelihood algorithm for DNA sequence compression
Gergely Korodi, Ioan Tabus
Pages: 3-34
DOI: 10.1145/1055709.1055711
This article presents an efficient algorithm for DNA sequence compression, which achieves the best compression ratios reported over a test set commonly used for evaluating DNA compression programs. The algorithm introduces many refinements to a...

A methodology for analyzing SAGE libraries for cancer profiling
Jörg Sander, Raymond T. Ng, Monica C. Sleumer, Man Saint Yuen, Steven J. Jones
Pages: 35-60
DOI: 10.1145/1055709.1055712
Serial Analysis of Gene Expression (SAGE) has proven to be an important alternative to microarray techniques for global profiling of mRNA populations. We have developed preprocessing methodologies to address problems in analyzing SAGE data due to...

Historical spatio-temporal aggregation
Yufei Tao, Dimitris Papadias
Pages: 61-102
DOI: 10.1145/1055709.1055713
Spatio-temporal databases store information about the positions of individual objects over time. However, in many applications such as traffic supervision or mobile communication systems, only summarized data, like the number of cars in an area for a...

Incorporating contextual information in recommender systems using a multidimensional approach
Gediminas Adomavicius, Ramesh Sankaranarayanan, Shahana Sen, Alexander Tuzhilin
Pages: 103-145
DOI: 10.1145/1055709.1055714
The article presents a multidimensional (MD) approach to recommender systems that can provide recommendations based on additional contextual information besides the typical information on users and items used in most of the current recommender...