{"id":681,"date":"2013-12-07T11:57:30","date_gmt":"2013-12-07T08:27:30","guid":{"rendered":"http:\/\/vua.nadiran.com\/?p=681"},"modified":"2013-12-07T12:03:28","modified_gmt":"2013-12-07T08:33:28","slug":"%d8%ae%d9%84%d8%a7%d8%b5%d9%87-%d8%af%d8%b1%d8%b3-%d8%aa%d8%af%d8%b1%db%8c%d8%b3-%db%8c%d8%a7%d8%b1-%d8%ae%d9%88%d8%b4%d9%87-%d8%a8%d9%86%d8%af%db%8c-920916","status":"publish","type":"post","link":"https:\/\/vua.nadiran.com\/?p=681","title":{"rendered":"\u062e\u0644\u0627\u0635\u0647 \u062f\u0631\u0633 \u062a\u062f\u0631\u06cc\u0633 \u06cc\u0627\u0631 \u062e\u0648\u0634\u0647 \u0628\u0646\u062f\u06cc – \u06f9\u06f2\/\u06f0\u06f9\/\u06f1\u06f6"},"content":{"rendered":"

\u062e\u0644\u0627\u0635\u0647 \u062f\u0631\u0633 \u062a\u062f\u0631\u06cc\u0633 \u06cc\u0627\u0631 \u062e\u0648\u0634\u0647 \u0628\u0646\u062f\u06cc – \u06f9\u06f2\/\u06f0\u06f9\/\u06f1\u06f6
\n\u0641\u06cc\u0634\u0631 \u062f\u0648 \u06a9\u0644\u0627\u0633\u0647 \u0631\u0627 \u062c\u0644\u0633\u0647 \u0642\u0628\u0644 \u06af\u0641\u062a\u06cc\u0645<\/p>\n

\u0647\u0645 \u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u0628\u06cc\u0646 \u06a9\u0644\u0627\u0633\u06cc \u0648 \u0647\u0645 \u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u062f\u0631\u0648\u0646 \u06a9\u0644\u0627\u0633\u06cc \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u06a9\u0631\u062f\u06cc\u0645<\/p>\n

\u0627\u0632 \u0644\u0627\u06af\u0631\u0627\u0646\u0698 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u06a9\u0631\u062f\u06cc\u0645 \u0648 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0645\u0634\u062a\u0642 \u06af\u0631\u0641\u062a\u06cc\u0645 ( \u0686\u0648\u0646 \u0635\u0648\u0631\u062a \u0648 \u0645\u062e\u0631\u062c \u0628\u0627 \u0647\u0645 \u0633\u0627\u062f\u0647 \u0645\u06cc \u0634\u062f)
\n\u06a9\u0647 \u0631\u0627\u0628\u0637\u0647 \u06f4\u066b\u06f2\u06f9 \u0628\u062f\u0633\u062a \u0622\u0645\u062f<\/p>\n

\u0628\u0631\u0627\u06cc \u062e\u0648\u0634\u0647 \u0628\u0646\u062f\u06cc \u06a9\u0627\u0641\u06cc\u0633\u062a \u0631\u0648\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627 \u06cc\u06a9 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0647\u0627\u06cc \u062a\u0635\u0648\u06cc\u0631 \u0634\u062f\u0647 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u0645
\n\u0645\u062a\u0648\u0633\u0637 \u0645\u06cc\u0627\u0646\u06af\u06cc\u0646 \u0647\u0627\u06cc \u062a\u0635\u0648\u06cc\u0631 \u0634\u062f\u0647<\/p>\n

——————————————
\n\u0641\u06cc\u0634\u0631 \u0686\u0646\u062f \u06a9\u0644\u0627\u0633\u0647 :<\/p>\n

\u0645\u062b\u0644\u0627 \u0631\u0648\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc IRIS \u06a9\u0647 \u0686\u0647\u0627\u0631 \u0628\u0639\u062f\u06cc \u0647\u0633\u062a \u06a9\u0647 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u0628\u0647 \u062f\u0648 \u06cc\u0627 \u0633\u0647 \u0628\u0639\u062f \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u06cc\u0645<\/p>\n

\u0641\u06cc\u0634\u0631 \u062d\u0627\u0644\u062a \u0686\u0646\u062f \u06a9\u0644\u0627\u0633\u0647 – \u062a\u0639\u062f\u0627\u062f \u0627\u0628\u0639\u0627\u062f \u0627\u0632 D \u0628\u0639\u062f \u0628\u0647 \u0628\u0647 \u0628\u06cc\u0634\u062a\u0631 \u0627\u0632 \u06cc\u06a9 \u0628\u0639\u062f \u0648 \u06a9\u0645\u062a\u0631 \u0627\u0632 D \u0628\u0639\u062f \u0647\u0633\u062a<\/p>\n

\u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 ‘D \u0648\u06cc\u0698\u06af\u06cc \u062e\u0637\u06cc \u0628\u062f\u0633\u062a \u0628\u06cc\u0627\u0648\u0631\u06cc\u0645<\/p>\n

\u0627\u06af\u0631 \u06f4 \u0628\u0639\u062f \u062f\u0627\u0631\u06cc\u0645 \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u0628\u0647 \u062f\u0648 \u0628\u0639\u062f \u06a9\u0627\u0647\u0634 \u0628\u062f\u0647\u06cc\u0645 \u06cc\u0639\u0646\u06cc ‘D \u0645\u0633\u0627\u0648\u06cc \u06f2 \u0647\u0633\u062a \u062f\u0648\u0628\u0631\u062f\u0627\u0631 \u0628\u0627\u06cc\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u0645 w1 \u0648 w2 \u062f\u0627\u0631\u06cc\u0645<\/p>\n

\u0631\u0627\u0628\u0637\u0647 \u06f4\u066b\u06f3\u06f9<\/p>\n

\"clustering-fisher-multi\"<\/a><\/p>\n


\n<\/a>
\n<\/a>
\n<\/a>
\n<\/a><\/p>\n

S Within \u062c\u0645\u0639 \u0631\u0648\u06cc k \u06a9\u0644\u0627\u0633 \u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u062f\u0631\u0648\u0646 \u06a9\u0644\u0627\u0633\u06cc<\/p>\n

\"clustering-fisher-multi-solution\"<\/a><\/p>\n

\u06cc\u06a9 \u0645\u0627\u062a\u0631\u06cc\u0633 \u0646\u0633\u0628\u062a \u0628\u0647 \u062f\u0648 \u06a9\u0644\u0627\u0633\u0647 \u0628\u06cc\u0634\u062a\u0631 \u062f\u0627\u0631\u06cc\u0645 \u0628\u0647 \u0627\u0633\u0645 :
\nS total \u0645\u0627\u062a\u0631\u06cc\u0633 \u06a9\u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u06a9\u0644 \u0646\u0645\u0648\u0646\u0647 \u0647\u0627 ( \u067e\u0631\u0627\u06a9\u0646\u062f\u06af\u06cc \u06a9\u0644 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0635\u0631\u0641 \u0646\u0638\u0631 \u0627\u0632 \u06a9\u0644\u0627\u0633\u0634\u0648\u0646 )<\/p>\n

\u0645\u0627\u062a\u0631\u06cc\u0633 \u06a9\u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u06a9\u0644 \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u0635\u0648\u0631\u062a \u062c\u0645\u0639 \u0645\u0627\u062a\u0631\u06cc\u0633 \u062f\u0631\u0648\u0646 \u06a9\u0644\u0627\u0633\u06cc \u0648 \u0645\u0627\u062a\u0631\u06cc\u0633 \u0628\u06cc\u0646 \u06a9\u0644\u0627\u0633\u06cc \u0646\u0648\u0634\u062a<\/p>\n

\u0645\u062a\u0648\u0633\u0637 \u0647\u0631 \u06a9\u0644\u0627\u0633 \u0628\u0627 \u0645\u062a\u0648\u0633\u0637 \u0647\u0645\u0647 \u06a9\u0644\u0627\u0633 \u0647\u0627 S Bitween<\/p>\n

Trace : \u0627\u0639\u0636\u0627\u06cc \u0642\u0637\u0631 \u0627\u0635\u0644\u06cc \u0631\u0627 \u0628\u0627 \u0647\u0645 \u062c\u0645\u0639 \u06a9\u0646\u06cc\u0645<\/p>\n

\u0628\u0631\u0627\u06cc \u0627\u06cc\u0646\u06a9\u0647 \u0645\u0633\u0627\u0644\u0647 \u0641\u06cc\u0634\u0631 \u0631\u0627 \u062d\u0644 \u06a9\u0646\u06cc\u0645 Sw , Sb \u0631\u0627 \u0628\u0627\u06cc\u062f \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u0645
\nS^-1w*Sb<\/p>\n

y1 , y2 \u062f\u0631 \u06a9\u0646\u0627\u0631 \u0647\u0645 \u0628\u0631\u062f\u0627\u0631 \u062f\u0648 \u0628\u0639\u062f\u06cc \u06a9\u0627\u0647\u0634 \u06cc\u0627\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f<\/p>\n

\"clustering-fisher-multi2\"<\/a><\/p>\n

\u0646\u06a9\u062a\u0647 : Rank \u0645\u0627\u062a\u0631\u06cc\u0633 ( \u062f\u0631\u062c\u0647 \u0645\u0627\u062a\u0631\u06cc\u0633 )
\n\u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u0628\u0628\u06cc\u0646\u06cc\u0645 \u06a9\u0647 \u062d\u062f\u0627\u06a9\u062b\u0631 \u0628\u0647 \u0686\u0646\u062f \u0628\u0639\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u06a9\u0627\u0647\u0634 \u0628\u062f\u0647\u06cc\u0645<\/p>\n

\u0647\u0631 \u0645\u0627\u062a\u0631\u06cc\u0633 \u062f\u0631\u0648\u0646 \u06a9\u0644\u0627\u0633\u06cc Rank \u0622\u0646 \u06f1 \u0627\u0633\u062a
\n\u0648 k \u062a\u0627 \u0645\u0627\u062a\u0631\u06cc\u0633 \u0631\u0627 \u06a9\u0647 \u0628\u0627 \u0647\u0645 \u062c\u0645\u0639 \u0645\u06cc \u06a9\u0646\u06cc\u0645 Rank \u0622\u0646 K \u0645\u06cc \u0634\u0648\u062f<\/p>\n

\u0686\u0648\u0646 \u062a\u0645\u0627\u0645 \u0645\u062a\u0648\u0633\u0637 \u0647\u0627 \u0628\u0647 m \u0631\u0628\u0637 \u067e\u0628\u062f\u0627 \u06a9\u0631\u062f\u0646\u062f Rank k-1 \u0645\u06cc \u0634\u0648\u062f<\/p>\n

\u067e\u0633 \u0628\u0631\u0627\u06cc IRIS \u0628\u0647 \u062f\u0648 \u0628\u0639\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u0645 \u06a9\u0627\u0647\u0634 \u062f\u0647\u06cc\u0645 \u0686\u0648\u0646 \u06f3 \u062a\u0627 \u06a9\u0644\u0627\u0633 \u062f\u0627\u0631\u062f<\/p>\n

\"clustering-fisher-multi-note\"<\/a><\/p>\n

——————————–
\n\u062a\u0645\u0631\u06cc\u0646 : \u0641\u06cc\u0634\u0631 \u06f3 \u06a9\u0644\u0627\u0633\u0647 IRIS \u0631\u0627 \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f
\n——————————–<\/p>\n

\u062a\u0645\u0631\u06cc\u0646 \u0645\u0647\u0645 :
\n\u0645\u0648\u0636\u0648\u0639 \u0627\u0648\u0644 : K-means
\nSearch \u06a9\u0646\u06cc\u062f \u062f\u0631 \u0645\u0648\u0636\u0648\u0639\u0627\u062a k-means \u06a9\u0647 \u0628\u0647 \u0622\u0646 VQ \u06cc\u0627 LBG \u0647\u0645 \u0645\u06cc \u06af\u0648\u06cc\u0646\u062f
\n\u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u0645 \u0627\u0646\u0648\u0627\u0639 \u062d\u0627\u0644\u062a \u0647\u0627\u06cc \u0622\u0646\u0631\u0627 \u0628\u06af\u0648\u06cc\u06cc\u062f ( weighted VQ )
\n\u0645\u0642\u0627\u0644\u0647 \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f
\n\u06f1- \u0627\u0646\u0648\u0627\u0639 \u0631\u0648\u0634 \u0647\u0627\u06cc VQ \u0631\u0627 \u0628\u06af\u0648\u06cc\u0646\u062f
\n\u06f2- \u0631\u0648\u0634 \u062f\u0648\u0645 VQ \u0631\u0627 \u0628\u0647\u0628\u0648\u062f \u062f\u0627\u062f\u0646\u062f
\n\u06f3- \u0631\u0648\u0634\u0647\u0627\u06cc VQ \u0631\u0627 Weighted \u0631\u0627 \u06af\u0641\u062a\u0647 \u0627\u0646\u062f
\nWave Distance – \u0686\u0647 \u062a\u0627\u0628\u0639 \u0647\u0627\u06cc\u06cc \u0631\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646 \u0628\u0647 \u062c\u0627\u06cc Distance \u0627\u0642\u0644\u06cc\u062f\u0633\u06cc \u060c \u0645\u0639\u06cc\u0627\u0631 \u0641\u0627\u0635\u0644\u0647 \u062c\u062f\u06cc\u062f \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0631\u062f\u0647<\/p>\n

\u0628\u0647 \u062c\u0627\u06cc \u062a\u0627\u0628\u0639 \u0646\u0631\u0645 \u0627\u0642\u0644\u06cc\u062f\u0633\u06cc \u0686\u0647 \u062a\u0627\u0628\u0639 \u0647\u0627\u06cc \u062f\u06cc\u06af\u0631\u06cc \u0631\u0627 \u06af\u0630\u0627\u0634\u062a\u0647 \u0627\u0633\u062a
\n\u062a\u0631\u062c\u06cc\u062d\u0627 \u0645\u0642\u0627\u0644\u0627\u062a\u06cc \u0631\u0627 \u067e\u06cc\u062f\u0627 \u06a9\u0646\u06cc\u062f \u06a9\u0647 Cost Function \u0647\u0627\u06cc \u062c\u062f\u06cc\u062f \u0627\u0631\u0627\u0626\u0647 \u06a9\u0631\u062f\u0647 \u0627\u0646\u062f<\/p>\n

————————————
\n\u0645\u0648\u0636\u0648\u0639 GMM<\/p>\n

————————————
\n\u0645\u0648\u0636\u0648\u0639 Kernel<\/p>\n

————————————
\n\u0645\u0648\u0636\u0648\u0639 Fisher<\/p>\n","protected":false},"excerpt":{"rendered":"

\u062e\u0644\u0627\u0635\u0647 \u062f\u0631\u0633 \u062a\u062f\u0631\u06cc\u0633 \u06cc\u0627\u0631 \u062e\u0648\u0634\u0647 \u0628\u0646\u062f\u06cc – \u06f9\u06f2\/\u06f0\u06f9\/\u06f1\u06f6 \u0641\u06cc\u0634\u0631 \u062f\u0648 \u06a9\u0644\u0627\u0633\u0647 \u0631\u0627 \u062c\u0644\u0633\u0647 \u0642\u0628\u0644 \u06af\u0641\u062a\u06cc\u0645 \u0647\u0645 \u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u0628\u06cc\u0646 \u06a9\u0644\u0627\u0633\u06cc \u0648 \u0647\u0645 \u0648\u0627\u0631\u06cc\u0627\u0646\u0633 \u062f\u0631\u0648\u0646 \u06a9\u0644\u0627\u0633\u06cc \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u0645\u06cc \u06a9\u0631\u062f\u06cc\u0645 \u0627\u0632 \u0644\u0627\u06af\u0631\u0627\u0646\u0698 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0646\u06a9\u0631\u062f\u06cc\u0645 \u0648 \u0645\u0633\u062a\u0642\u06cc\u0645 \u0645\u0634\u062a\u0642 \u06af\u0631\u0641\u062a\u06cc\u0645 ( \u0686\u0648\u0646 \u0635\u0648\u0631\u062a \u0648 \u0645\u062e\u0631\u062c \u0628\u0627 \u0647\u0645 \u0633\u0627\u062f\u0647 \u0645\u06cc \u0634\u062f) \u06a9\u0647 \u0631\u0627\u0628\u0637\u0647 \u06f4\u066b\u06f2\u06f9 \u0628\u062f\u0633\u062a \u0622\u0645\u062f \u0628\u0631\u0627\u06cc \u062e\u0648\u0634\u0647 \u0628\u0646\u062f\u06cc \u06a9\u0627\u0641\u06cc\u0633\u062a […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-681","post","type-post","status-publish","format-standard","hentry","category-clustering","category-21-id","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=\/wp\/v2\/posts\/681"}],"collection":[{"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=681"}],"version-history":[{"count":3,"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=\/wp\/v2\/posts\/681\/revisions"}],"predecessor-version":[{"id":683,"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=\/wp\/v2\/posts\/681\/revisions\/683"}],"wp:attachment":[{"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vua.nadiran.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}