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  • Research Article
  • Open Access

A Novel Prostate Cancer Classification Technique Using Intermediate Memory Tabu Search

  • 1Email author,
  • 1,
  • 1 and
  • 1
EURASIP Journal on Advances in Signal Processing20052005:906054

https://doi.org/10.1155/ASP.2005.2241

  • Received: 31 December 2003
  • Published:

Abstract

The introduction of multispectral imaging in pathology problems such as the identification of prostatic cancer is recent. Unlike conventional RGB color space, it allows the acquisition of a large number of spectral bands within the visible spectrum. This results in a feature vector of size greater than 100. For such a high dimensionality, pattern recognition techniques suffer from the well-known curse of dimensionality problem. The two well-known techniques to solve this problem are feature extraction and feature selection. In this paper, a novel feature selection technique using tabu search with an intermediate-term memory is proposed. The cost of a feature subset is measured by leave-one-out correct-classification rate of a nearest-neighbor (1-NN) classifier. The experiments have been carried out on the prostate cancer textured multispectral images and the results have been compared with a reported classical feature extraction technique. The results have indicated a significant boost in the performance both in terms of minimizing features and maximizing classification accuracy.

Keywords and phrases

  • feature selection
  • dimensionality reduction
  • tabu search
  • 1-NN classifier
  • prostate cancer classification

Authors’ Affiliations

(1)
School of Computer Science, Queen's University of Belfast, Northern Ireland, Belfast, BT7 1NN, UK

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