发明授权
US5796921A Mapping determination methods and data discrimination methods using the
same
失效
映射确定方法和使用该方法的数据鉴别方法
- 专利标题： Mapping determination methods and data discrimination methods using the same
- 专利标题（中）： 映射确定方法和使用该方法的数据鉴别方法
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申请号： US540948申请日： 1995-10-11
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公开(公告)号： US5796921A公开(公告)日： 1998-08-18
- 发明人: Katsuki Minamino , Masao Watari , Miyuki Tanaka , Kazuo Ishii , Yasuhiko Kato , Hiroaki Ogawa , Masanori Omote , Kazuo Watanabe , Hitoshi Honda
- 申请人： Katsuki Minamino , Masao Watari , Miyuki Tanaka , Kazuo Ishii , Yasuhiko Kato , Hiroaki Ogawa , Masanori Omote , Kazuo Watanabe , Hitoshi Honda
- 申请人地址： JPX Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX6-264948 19941028
- 主分类号： G06K9/62
- IPC分类号： G06K9/62 ; G06F15/18
摘要：
A mapping determination method for obtaining mapping F from an N-dimensional metric vector space .OMEGA..sub.N to an M-dimensional metric vector space .OMEGA..sub.M has the following steps to get the optimal mapping quickly and positively. In the first step, complete, periodic, L.sub.m basic functions g.sub.m (X) according to the distribution of samples classified into Q categories on the N-dimensional metric vector space .OMEGA..sub.N are set. In the second step, a function f.sub.m (X) indicating the m-th component of the mapping F is expressed with the linear sum of the functions g.sub.m (X) and L.sub.m coefficients c.sub.m. The third step provides Q teacher vectors T.sub.q =(t.sub.q.1, t.sub.q.2, t.sub.q.3, . . . , t.sub.q.M) (where q=1, 2, . . . , Q) for the categories on the M-dimensional metric vector space .OMEGA..sub.M, calculates the specified estimation function J, and obtains the coefficients c.sub.m which minimize the estimation function J. In the fourth step, the coefficients c.sub.m obtained in the third step are stored in memory.