Paper
17 December 1998 Combining indexing and learning in iterative refinement
Chung-Sheng Li, Vittorio Castelli, John R. Smith, Lawrence D. Bergman
Author Affiliations +
Abstract
Similarity measure has been one of the critical issues for successful content-based retrieval. Simple Euclidean or quadratic forms of distance are often inadequate, as they do not correspond to perceived similarity, nor adapt to different applications. Relevance feedback and/or iterative refinement techniques, based on the user feedback, have been proposed to adjust the similarity metric or the feature space. However, this learning process potentially renders those indices for facilitating high dimensional indexing, such as R-tree useless, as those indexing techniques usually assume a predetermined similarity measure. In this paper, we propose a simultaneous learning and indexing technique, for efficient content-based retrieval of images, that can be described by feature vectors. This technique builds a compact high-dimensional index, while taking into account that the raw feature space needs to be adjusted for each new application. Consequently, much better efficiency can be achieved, as compared to those techniques which do not make provisions for efficient indexing.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chung-Sheng Li, Vittorio Castelli, John R. Smith, and Lawrence D. Bergman "Combining indexing and learning in iterative refinement", Proc. SPIE 3656, Storage and Retrieval for Image and Video Databases VII, (17 December 1998); https://doi.org/10.1117/12.333858
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KEYWORDS
Feature extraction

Image retrieval

Databases

Dimension reduction

Detection and tracking algorithms

Information visualization

Matrices

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