%0 Journal Article
%T Optimal Projective Plane of Fisher-Recognition<br>Fisher识别的最佳投影平面
%A Wang Jingfang
%A <br>王景芳
%J 自动化学报
%D 1993
%I 
%X 一、引理引理。F(u)=sum from i=1 to m(b_i~2/λ_i-u),b_i(?)0,i=1,2,…,m;若λ_1,λ_2,…,λ_m中有(r(r>1)个互导,即λ_(i_1)>λ_(i_2)>…>λ_(i_r),那么F(u)=0在(λ_(i_(k+1)),λ_(i_k)),k=1,2,…,r-1内有唯一解,最大解u_0满足λ_(i_2)0, ∴u→λ_(i_k)-0,F(u)→+∞,u→λ_(i_k)+0, F(u)→-∞,(k=1,2,…,r), u→±∞,F(u)→0。 F(u)的导函数大于0,表明它在每个连续区间内为增函数,且每个区间(λ_(i_(k+1)),λ_(i_k)),
%K Pattern recognition
%K information extraction
%K projective plane
%K discriminant vertor<br>模式识别
%K 投影平面
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=E76622685B64B2AA896A7F777B64EB3A&aid=F79153DBD55AEE8F9279613F703F76EC&yid=D418FDC97F7C2EBA&vid=2A8D03AD8076A2E3&iid=E158A972A605785F&sid=8566B4AE2A8832E3&eid=9296A146D1D94BC4&journal_id=0254-4156&journal_name=自动化学报&referenced_num=1&reference_num=3