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ACM Transactions on Information Systems (TOIS), Volume 26 Issue 1, November 2007

Repeatable evaluation of search services in dynamic environments
Eric C. Jensen, Steven M. Beitzel, Abdur Chowdhury, Ophir Frieder
Article No.: 1
DOI: 10.1145/1292591.1292592

In dynamic environments, such as the World Wide Web, a changing document collection, query population, and set of search services demands frequent repetition of search effectiveness (relevance) evaluations. Reconstructing static test collections,...

Frequency-based identification of correct translation equivalents (FITE) obtained through transformation rules
Ari Pirkola, Jarmo Toivonen, Heikki Keskustalo, Kalervo Järvelin
Article No.: 2
DOI: 10.1145/1292591.1292593

We devised a novel statistical technique for the identification of the translation equivalents of source words obtained by transformation rule based translation (TRT). The effectiveness of the technique called frequency-based identification of...

A formal model of annotations of digital content
Maristella Agosti, Nicola Ferro
Article No.: 3
DOI: 10.1145/1292591.1292594

This article is a study of the themes and issues concerning the annotation of digital contents, such as textual documents, images, and multimedia documents in general. These digital contents are automatically managed by different kinds of digital...

Does a one-size recommendation system fit all? the effectiveness of collaborative filtering based recommendation systems across different domains and search modes
Il Im, Alexander Hars
Article No.: 4
DOI: 10.1145/1292591.1292595

Collaborative filtering (CF) is a personalization technology that generates recommendations for users based on others' evaluations. CF is used by numerous e-commerce Web sites for providing personalized recommendations. Although much research has...

Error correction vs. query garbling for Arabic OCR document retrieval
Kareem Darwish, Walid Magdy
Article No.: 5
DOI: 10.1145/1292591.1292596

Due to the existence of large numbers of legacy documents (such as old books and newspapers), improving retrieval effectiveness for OCR'ed documents continues to be an important problem. This article compares the effect of OCR error correction...