A Test Collection for the Evaluation of Content-Based Image Retrieval Algorithms—A User and Task-Based Approach |
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| Authors: | Marjo Markkula Marius Tico Bemmu Sepponen Katja Nirkkonen Eero Sormunen |
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| Institution: | (1) Department of Information Studies, University of Tampere, Finland;(2) Digital Media Institute, Tampere, University of Technology, Finland;(3) Department of Information Services, University of Tampere, Finland |
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| Abstract: | Content-based image retrieval (CBIR) algorithms have been seen as a promising access method for digital photograph collections. Unfortunately, we have very little evidence of the usefulness of these algorithms in real user needs and contexts. In this paper, we introduce a test collection for the evaluation of CBIR algorithms. In the test collection, the performance testing is based on photograph similarity perceived by end-users in the context of realistic illustration tasks and environment. The building process and the characteristics of the resulting test collection are outlined, including a typology of similarity criteria expressed by the subjects judging the similarity of photographs. A small-scale study on the consistency of similarity assessments is presented. A case evaluation of two CBIR algorithms is reported. The results show clear correlation between the subjects' similarity assessments and the functioning of feature parameters of the tested algorithms. |
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| Keywords: | content-based image retrieval evaluation test collections user needs |
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