Multi-scale Cluster Hierarchy for Non-stationary Functional Signals of Mutual Fund Returns

Mutual Fund 수익률의 비정상 함수형 시그널을 위한 다해상도 클러스터 계층구조

  • 김대룡 (동국대학교 경영학과) ;
  • 정욱 (동국대학교 경영학과)
  • Published : 2007.11.30

Abstract

Many Applications of scientific research have coupled with functional data signal clustering techniques to discover novel characteristics that can be used for the diagnoses of several issues. In this article we present an interpretable multi-scale cluster hierarchy framework for clustering functional data using its multi-aspect frequency information. The suggested method focuses on how to effectively select transformed features/variables in unsupervised manner so that finally reduce the data dimension and achieve the multi-purposed clustering. Specially, we apply our suggested method to mutual fund returns and make superior-performing funds group based on different aspects such as global patterns, seasonal variations, levels of noise, and their combinations. To promise our method producing a quality cluster hierarchy, we give some empirical results under the simulation study and a set of real life data. This research will contribute to financial market analysis and flexibly fit to other research fields with clustering purposes.

Keywords

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