ヒッツェル，エクハルト   HITZER, Eckhard   ヒッツェル, エクハルト    所属   国際基督教大学教養学部 アーツ・サイエンス学科    職種   上級准教授
言語種別	英語
発行・発表の年月	2008
形態種別	研究論文（国際会議プロシーディングス）
査読	査読あり
標題	Feature Extractions with Geometric Algebra for Classification of Objects
執筆形態	共著
掲載誌名	Proc. of Int. Joint Conf. on Neural Networks (IJCNN/WCCI2008) Hong Kong, China, 1-4 Jun. 2008
掲載区分	国外
出版社・発行元	IEEE
巻・号・頁	pp.4069-4073
著者・共著者	M. T. Pham, K. Tachibana, HITZER Eckhard, S. Buchholz, T. Yoshikawa, T. Furuhashi
概要	Most conventional methods of feature extraction do not pay much attention to the geometric properties of data, even in cases where the data have spatial features. In this study we introduce geometric algebra to undertake various kinds of feature extraction from spatial data. Geometric algebra is a generalization of complex numbers and of quaternions, and it is able to describe spatial objects and relations between them. This paper proposes to use geometric algebra to systematically extract geometric features from data given in a vector space. We show the results of classification of hand-written digits, which were classified by feature extraction with the proposed method.