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The objectives of the study were to conduct a series of observations and experiments under as real-life situation as possible related to: (1) user context of questions in information retrieval; (2) the structure and classification of questions; (3) cognitive traits and decision making of searchers; and (4) different searches of the same question. The study(More)
We report on two studies in the TREC-2 program which investigated the effect on retrieval performance of combination of multiple representations of TREC topics. In one of the projects, five separate Boolean queries for each of the 50 TREC routing topics and 25 of the TREC ad hoc topics were generated by 75 experienced online searchers. Using the INQUERY(More)
A known-item search is a particular information retrieval task in which the system is asked to nd a single target document in a large document set. The TREC-5 confusion track used a set of 49 known-item tasks to study the impact of data corruption on retrieval system performance. Two corrupted versions of a 55,600 document corpus whose true content was(More)
omy itself, and the results of testing the Taxonomy. We Of everything which we posses there are two uses. Both believe that the Taxonomy covers most dimensions of belong to the thing as such, but not in the same manner value related to use of library and information services.. .. . For example, a shoe is used for wear, and is used In the second part we also(More)
We present a 3D matching framework based on a many-to-many matching algorithm that works with skeletal representations of 3D volumetric objects. We demonstrate the performance of this approach on a large database of 3D objects containing more than 1000 exem-plars. The method is especially suited to matching objects with distinct part structure and is(More)
The objectives of the study were to conduct a series of observations and experiments under as real-life a situation as possible related to: (1) user context of questions in information retrieval; (2) the structure and classification of questions; (3) cognitive traits and decision making of searchers; and (4) different searches of the same question. The(More)
This report describes DIMACS work on the text categoriza-tion task of the TREC 2005 Genomics track. Our approach to this task was similar to the triage subtask studied in the TREC 2004 Genomics track. We applied Bayesian logistic regression and achieved good effectiveness on all categories. The Mouse Genome Informatics (MGI) project of the Jackson(More)