Journal ArticleDOI
Similarity measures
Simone Santini,Ramesh Jain +1 more
TLDR
A similarity measure is developed, based on fuzzy logic, that exhibits several features that match experimental findings in humans and is an extension to a more general domain of the feature contrast model due to Tversky (1977).Abstract:
With complex multimedia data, we see the emergence of database systems in which the fundamental operation is similarity assessment. Before database issues can be addressed, it is necessary to give a definition of similarity as an operation. We develop a similarity measure, based on fuzzy logic, that exhibits several features that match experimental findings in humans. The model is dubbed fuzzy feature contrast (FFC) and is an extension to a more general domain of the feature contrast model due to Tversky (1977). We show how the FFC model can be used to model similarity assessment from fuzzy judgment of properties, and we address the use of fuzzy measures to deal with dependencies among the properties.read more
Citations
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Journal ArticleDOI
Content-based image retrieval at the end of the early years
TL;DR: The working conditions of content-based retrieval: patterns of use, types of pictures, the role of semantics, and the sensory gap are discussed, as well as aspects of system engineering: databases, system architecture, and evaluation.
Journal ArticleDOI
Reduction Techniques for Instance-BasedLearning Algorithms
D. Randall Wilson,Tony Martinez +1 more
TL;DR: Of those algorithms that provide substantial storage reduction, the DROP algorithms have the highest average generalization accuracy in these experiments, especially in the presence of uniform class noise.
Journal ArticleDOI
Inverted files for text search engines
Justin Zobel,Alistair Moffat +1 more
TL;DR: This tutorial introduces the key techniques in the area of text indexing, describing both a core implementation and how the core can be enhanced through a range of extensions.
Journal ArticleDOI
Mapping the backbone of science
TL;DR: A new map representing the structure of all of science, based on journal articles, is presented, including both the natural and social sciences, including biochemistry, which appears as the most interdisciplinary discipline in science.
Mapping the backbone of science.
TL;DR: In this article, the authors presented a new map representing the structure of all of science, based on journal articles, including both the natural and social sciences, which provides a bird's eye view of today's scientific landscape.
References
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Journal ArticleDOI
An Ordination of the Upland Forest Communities of Southern Wisconsin
Roger H. Bray,John T. Curtis +1 more
TL;DR: It is shown that nature of unit variation is a naajor problenl in systematies, and that whether this variation is diserete, continuous, or in some other form, there is a need for appliGation of (uantitative and statistical methods.
Journal ArticleDOI
Features of Similarity
TL;DR: The metric and dimensional assumptions that underlie the geometric representation of similarity are questioned on both theoretical and empirical grounds and a set of qualitative assumptions are shown to imply the contrast model, which expresses the similarity between objects as a linear combination of the measures of their common and distinctive features.
Journal ArticleDOI
Color indexing
Michael J. Swain,Dana H. Ballard +1 more
TL;DR: In this paper, color histograms of multicolored objects provide a robust, efficient cue for indexing into a large database of models, and they can differentiate among a large number of objects.