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Robust hashing aims at representing the perceptual essence of media data in a compact manner, and it has been widely applied in content identification, copyright protection, content authentication, etc. In this paper, a robust hashing algorithm is proposed by incorporating the polar harmonic transforms and feature selection. The proposed hashing algorithm starts by preprocessing, where morphological...
Key-Phrase should not only reflect the main content of a document, but also reflect the specialty of this document. Key-Phrase extraction is an important technique in the field of text information processing. With the advent of the Internet age, on-line file shows an astonishing increase in geometry and information explosion has became the main character of this age. Searching and making use of network...
Feature selection only using wrapper method in high-dimensional data space is always time-consuming. A new feature selection method, named fast static particle swarm optimization, is proposed for tackling this problem. It treats the whole initial feature set as a static particle swarm in which no new particle would be generated in high dimensional space, and the proposed method takes filter and wrapper...
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