Abstract

패턴 인식 분야에는 지수적 탐색 공간을 가진 최적화 문제가 많이 있다. 이를 해결하기 위해 부 최적해를 구하는 순차 탐색 알고리즘이 사용되어 왔고, 이들 알고리즘은 국부 최적점에 빠지는 문제점을 안고 있다. 최근 이를 극복하기 위해 유전 알고리즘을 사용하는 사례가 많아졌다. 이 논문은 특징 선택, 분류기 앙상블 선택, 신경망 가지치기, 군집화 문제의 지수적 탐색 공간 특성을 설명하고 이를 해결하기 위한 유전 알고리즘을 살펴본다. 또한 향후 연구로서 가치가 높은 주제들에 대해 소개한다. In pattern recognition field, there are many optimization problems having exponential search spaces. To solve of sequential search algorithms seeking sub-optimal solutions have been used. The algorithms have limitations of stopping at local optimums. Recently lots of researches attempt to solve the problems using genetic algorithms. This paper explains the huge search spaces of typical problems such as feature selection, classifier ensemble selection, neural network pruning, and clustering, and it reviews the genetic algorithms for solving them. Additionally we present several subjects worthy of noting as future researches.

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