Optim.jlã¨ããJuliaã®é¢æ°æé©åããã±ã¼ã¸ã®åºåãæ°ã«ãªã£ãã®ã§ãã«ãªã¯ã¨ã¹ããæããããã¡ãã£ã¨è°è«ã«ãªãè²ã Nelder-Meadã¢ã«ã´ãªãºã ã調ã¹ãäºã«ãªã£ã¦ãã¾ãããã®å¯ä½ç¨ã§å°ã詳ãããªã£ãã®ã§Juliaã§å®è£ ãæ¸ãã¦ã¿ã¾ãããOptim.jlã®å®è£ ããé«éã ã¨æãã¾ãããã®ããã±ã¼ã¸ããã¡ãã§ã: ANMS - Adaptive Nelder-Mead Simplex Optimization Nelder-Meadæ³ã¨ããã®ã¯ããåãã®æ¹ã¯ãåç¥ã®ããã«ãnå¤æ°ã®é¢æ°ã®æé©åãããéã«n+1ç¹ãããªãsimplex(åä½)ãå¤å½¢ãããªããæå°å¤ãgreedyã«æ¢ç´¢ããã¢ã«ã´ãªãºã ã§ãã ã¢ã«ã´ãªãºã èªä½ã¯1960年代ãããå¤ãå¤ãæ¹æ³ã§ãæ°ã ã®äºç¨®ãåå¨ãã¾ãã ä»åå®è£ ããã®ã¯ãã®ãã¡ã®æ¯è¼çæ°ãã Adaptive Nelder-Mead Simplex (A
Rã§ãLPç¨åº¦ãªããä¸çå¼å¶ç´ä»ãæé©ååé¡ãã§ãã£ã¦ã æ°å¤è¨ç®ã§æ±ãããããã¨ããããã¾ããã ç¨ããé¢æ°ã¯ãoptim()ã®ã©ããã¼é¢æ°ã§ããconstrOptim()ã使ãã¾ãã ä¾ãã°ã以ä¸ã®ãããª(æ大å)LPãèãã¾ãã ç®çé¢æ°: å¶ç´æ¡ä»¶: (解çã¯, ã®ã¨ã, æé©å¤12) ããããããã®ããã«ã¾ããconstrOptim()ã®å¼æ°ã®ããã«ç®çé¢æ°fãå¶ç´æ¡ä»¶uiã¨ciãå®ç¾©ãã¦ããã¾ããfã«é¢ãã¦ã¯ãoptim()ã¨åæ§ã«æ±ãã¾ãã > # ç®çé¢æ° > f <- function(par) { + return(3*par[1] + 2*par[2]) + } uiã¨ciã«é¢ãã¦ã¯ãã %*% ããæºããããã«æ§æãã¾ãã parã¯æ¨å®ãããã©ã¡ã¼ã¿ã§ãã > # å¶ç´æ¡ä»¶ãã®1 > (ui <- matrix(c(-3, -1, -2.5, -2, -1, -2,
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ã©ã³ãã³ã°
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}