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琚堣鐐圭偣鐤戞ū鐡o紝鍗婃槸鑴傜棔鍗婃唱鐥曪紱娓呴緇嗛洦綰㈡償瀵猴紝涓嶈鍍у綊瑙佺嚂褰掞紱閫㈠悰鍒湁浼ゅ績(jī)鍦紝涓旂湅瀵掓鏈惤鑺憋紱鎴戞湰灝嗗績(jī)鍚戞槑鏈堬紝璋佺煡鏄庢湀鐓ф矡娓?lt;br>
瀹犺頸涓嶆儕錛岄潤(rùn)瑙傚爞鍓嶈姳寮鑺辮惤錛涘幓鐣欐棤鎰忥紝婕湅澶╄竟浜戝嵎浜戣垝
</font>zh-cnFri, 24 Aug 2007 20:04:58 GMTFri, 24 Aug 2007 20:04:58 GMT60- 閬椾紶綆楁硶浠嬬粛(杞?http://www.tkk7.com/coundy/articles/109616.htmlCoundyCoundyTue, 10 Apr 2007 05:57:00 GMThttp://www.tkk7.com/coundy/articles/109616.htmlhttp://www.tkk7.com/coundy/comments/109616.htmlhttp://www.tkk7.com/coundy/articles/109616.html#Feedback0http://www.tkk7.com/coundy/comments/commentRss/109616.htmlhttp://www.tkk7.com/coundy/services/trackbacks/109616.html(杞嚜)http://www.cnblogs.com/waterflier/archive/2006/12/04/153545.html
鐜頒唬鐢熺墿閬椾紶瀛︿腑鎻忚堪鐨勭敓鐗╄繘鍖栫悊璁?
閬椾紶鐗╄川鐨勪富瑕佽澆浣撴槸鏌撹壊浣?chromsome),鏌撹壊浣撲富瑕佺敱DNA鍜岃泲鐧借川緇勬垚銆傚叾涓璂NA涓烘渶涓昏鐨勯仐浼犵墿璐ㄣ?
鍩哄洜(gene)鏄湁閬椾紶鏁堝簲鐨勭墖鏂?瀹冨瓨鍌ㄧ潃閬椾紶淇℃伅,鍙互鍑嗙‘鍦板鍒?涔熻兘鍙戠敓紿佸彉,騫跺彲閫氳繃鎺у埗铔嬬櫧璐ㄧ殑鍚堟垚鑰屾帶鍒剁敓鐗╃殑鐘舵?鐢熺墿鑷韓閫氳繃瀵瑰熀鍥犵殑澶嶅埗(reproduction)鍜屼氦鍙?crossover,鍗沖熀鍥犲垎紱?鍩哄洜緇勫悎鍜屽熀鍥犺繛閿佷簰鎹?鐨勬搷浣滄椂鍏舵х姸鐨勯仐浼犲緱鍒伴夋嫨鍜屾帶鍒躲傜敓鐗╃殑閬椾紶鐗規(guī)?浣跨敓鐗╃晫鐨勭墿縐嶈兘淇濇寔鐩稿鐨勭ǔ瀹?鐢熺墿鐨勫彉寮傜壒鎬?浣跨敓鐗╀釜浣撲駭鐢熸柊鐨勬х姸,浠ヨ嚦浜庡艦鎴愪簡(jiǎn)鏂扮殑鐗╃(閲忓彉縐瘡涓鴻川鍙?,鎺ㄥ姩浜?jiǎn)鐢熺墿鐨剺q涘寲鍜屽彂灞曘?
閬椾紶瀛︾畻娉曞拰閬椾紶瀛︿腑鐨勫熀紜鏈姣旇緝
鏌撹壊浣?chromosome) |
鏁版嵁,鏁扮粍,搴忓垪 |
鍩哄洜(gene) |
鍗曚釜鍏冪礌,浣?/td>
|
絳変綅鍩哄洜(allele) |
鏁版嵁鍊?灞炴?鍊?/td>
|
鍩哄洜搴?locus) |
浣嶇疆,iterator浣嶇疆 |
琛ㄧ幇鍨?phenotype) |
鍙傛暟闆?瑙g爜緇撴瀯,鍊欓夎В |
閬椾紶闅愬尶(epistasis) |
闈炵嚎鎬?/td>
|
鏌撹壊浣撳張鍙互鍙仛鍩哄洜鍨嬩釜浣?individuals),涓瀹氭暟閲忕殑涓綋緇勬垚浜?jiǎn)缇や?population),緹や綋涓釜浣撶殑鏁伴噺鍙仛緹や綋澶у皬銆傚悇涓釜浣撳鐜鐨勯傚簲紼嬪害鍙仛閫傚簲搴?fitness)
閬椾紶綆楁硶鐨勫噯澶囧伐浣?
1)鏁版嵁杞崲鎿嶄綔,鍖呮嫭琛ㄧ幇鍨嬪埌鍩哄洜鍨嬬殑杞崲鍜屽熀鍥犲瀷鍒拌〃鐜板瀷鐨勮漿鎹€傚墠鑰呮槸鎶婃眰瑙g┖闂翠腑鐨勫弬鏁拌漿鍖栨垚閬椾紶絀洪棿涓殑鏌撹壊浣撴垨鑰呬釜浣?encoding),鍚庤呮槸瀹冪殑閫嗘搷浣?decoding)
2)紜畾閫傚簲搴﹁綆楀嚱鏁?鍙互灝嗕釜浣撳肩粡榪囪鍑芥暟杞崲涓鴻涓綋鐨勯傚簲搴?璇ラ傚簲搴︾殑楂樹綆瑕佽兘鍏呭垎鍙嶆槧璇ヤ釜浣撳浜庤В寰椾紭縐紼嬪害銆傞潪甯擱噸瑕佺殑榪囩▼錛?
閬椾紶綆楁硶鐨勫熀鏈楠?/strong>
閬椾紶綆楁硶鏄叿鏈?鐢熸垚+媯(gè)嫻?(generate-and-test)鐨勮凱浠h繃紼嬬殑鎼滅儲(chǔ)綆楁硶銆?
鍩烘湰榪囩▼涓?
1)緙栫爜,鍒涘緩鍒濆闆嗗洟
2)闆嗗洟涓釜浣撻傚簲搴﹁綆?
3)璇勪及閫傚簲搴?
4)鏍規(guī)嵁閫傚簲搴﹂夋嫨涓綋
5)琚夋嫨涓綋榪涜浜ゅ弶綣佹畺,
6)鍦ㄧ箒孌栫殑榪囩▼涓紩鍏ュ彉寮傛満鍒?
7)綣佹畺鍑烘柊鐨勯泦鍥?鍥炲埌絎簩姝?
涓涓畝鍗曠殑閬椾紶綆楁硶鐨勪緥瀛?姹?[0,31]鑼冨洿鍐呯殑y=(x-10)^2鐨勬渶灝忓?/strong>
1)緙栫爜綆楁硶閫夋嫨涓?灝唜杞寲涓?榪涘埗鐨勪覆",涓茬殑闀垮害涓?浣嶃?絳変綅鍩哄洜鐨勫間負(fù)0 or 1)
2)璁$畻閫傚簲搴︾殑鏂規(guī)硶鏄?鍏堝皢涓綋涓茶繘琛岃В鐮?杞寲涓篿nt鍨嬬殑x鍊?鐒跺悗浣跨敤y=(x-10)^2浣滀負(fù)鍏墮傚簲搴﹁綆楀悎閫?鐢變簬鏄渶灝忓?鎵浠ョ粨鏋滆秺灝?閫傚簲搴︿篃瓚婂ソ)
3)姝e紡寮濮?鍏堣緗兢浣撳ぇ灝忎負(fù)4,鐒跺悗鍒濆鍖栫兢浣?=> (鍦╗0,31]鑼冨洿鍐呴殢鏈洪夊彇4涓暣鏁板氨鍙互,緙栫爜)
4)璁$畻閫傚簲搴i(鐢變簬鏄渶灝忓?鍙互閫夊彇涓涓ぇ鐨勫熀鍑嗙嚎1000,Fi = 1000 - (x-10)^2)
5)璁$畻姣忎釜涓綋鐨勯夋嫨姒傜巼.閫夋嫨姒傜巼瑕佽兘澶熷弽鏄犱釜浣撶殑浼樼紼嬪害.榪欓噷鐢ㄤ竴涓緢綆鍗曠殑鏂規(guī)硶鏉ョ‘瀹氶夋嫨姒傜巼
P=Fi / TOTAL(Fi).
6)閫夋嫨.
鏍規(guī)嵁鎵鏈変釜浣撶殑閫夋嫨姒傜巼榪涜娣樻卑閫夋嫨.榪欓噷浣跨敤鐨勬槸涓涓祵杞殑鏂瑰紡榪涜娣樻卑閫夋嫨.鍏堟寜鐓ф瘡涓釜浣撶殑閫夋嫨姒傜巼鍒涘緩涓涓祵杞?鐒跺悗閫夊彇4嬈?姣忔鍏堜駭鐢熶竴涓?-1鐨勯殢鏈哄皬鏁?鐒跺悗鍒ゆ柇璇ラ殢鏈烘暟钀藉湪閭d釜孌靛唴灝遍夊彇鐩稿搴旂殑涓綋.榪欎釜榪囩▼涓?閫夊彇姒傜巼P楂樼殑涓綋灝嗗彲鑳借澶氭閫夋嫨,鑰屾鐜囦綆鐨勫氨鍙兘琚窐姹?
涓嬮潰鏄竴涓畝鍗曠殑璧岃疆鐨勪緥瀛?
13% 35% 15% 37%
----------|----------------------------|------------|-*-------------------------|
涓綋1 涓綋2 涓綋3 ^0.67 涓綋4
闅忔満鏁頒負(fù)0.67钀藉湪浜?jiǎn)涓?鐨勭鍐?鏈閫夋嫨浜?jiǎn)涓?.
琚変腑鐨勪釜浣撳皢榪涘叆閰嶅搴?mating pool,閰嶅闆嗗洟)鍑嗗寮濮嬬箒孌?
7)綆鍗曚氦鍙?
鍏堝閰嶅搴撲腑鐨勪釜浣撹繘琛岄殢鏈洪厤瀵?鐒跺悗鍦ㄩ厤瀵圭殑2涓釜浣撲腑璁劇疆浜ゅ弶鐐?浜ゆ崲2涓釜浣撶殑淇℃伅鍚庝駭鐢熶笅涓浠?
姣斿( | 浠h〃綆鍗曚覆鐨勪氦鍙変綅緗?
( 0110|1, 1100|0 ) --浜ゅ弶--> (01100,11001)
( 01|000, 11|011 ) --浜ゅ弶--> (01011,11000)
2涓埗浠g殑涓綋鍦ㄤ氦鍙夊悗綣佹畺鍑轟簡(jiǎn)涓嬩竴浠g殑鍚屾牱鏁伴噺鐨勪釜浣?
澶嶆潅鐨勪氦鍙夊湪浜ゅ弶鐨勪綅緗?浜ゅ弶鐨勬柟娉?鍙屼翰鐨勬暟閲忎笂閮藉彲浠ラ夋嫨.鍏剁洰鐨勯兘鍦ㄤ簬灝藉彲鑳界殑鍩硅偛鍑烘洿浼樼鐨勫悗
浠?
8)鍙樺紓
鍙樺紓鎿嶄綔鏃舵寜鐓у熀鍥犲駭鏉ョ殑.姣斿璇存病璁$畻2涓囦釜鍩哄洜搴у氨鍙戠敓涓涓彉寮?鎴戜滑鐜板湪鐨勬瘡涓釜浣撴湁5涓熀鍥犲駭.涔熷氨鏄瑕佽繘鍖?000浠e悗鎵嶄細(xì)鍦ㄥ叾涓殑鏌愪釜鍩哄洜搴у彂鐢熶竴嬈″彉寮?)鍙樺紓鐨勭粨鏋滄槸鍩哄洜搴т笂鐨勭瓑浣嶅熀鍥犲彂鐢熶簡(jiǎn)鍙樺寲.鎴戜滑榪欓噷鐨勪緥瀛愬氨鏄妸0鍙樻垚1鎴栧垯1鍙樻垚0.
鑷蟲,鎴戜滑宸茬粡浜х敓浜?jiǎn)涓涓柊鐨?涓嬩竴浠?闆嗗洟.鐒跺悗鍥炲埌絎?姝?鍛ㄨ屽濮?鐢熺敓涓嶆伅涓嬪幓:)
浼唬鐮佸疄渚?閫傚悎鐖辯湅浠g爜鐨勬湅鍙媬):
//Init population
foreach individual in population
{
individual = Encode(Random(0,31));
}
while (App.IsRun)
{
//璁$畻涓綋閫傚簲搴?
int TotalF = 0;
foreach individual in population
{
individual.F = 1000 - (Decode(individual)-10)^2;
TotalF += individual.F;
}
//------閫夋嫨榪囩▼,璁$畻涓綋閫夋嫨姒傜巼-----------
foreach individual in population
{
individual.P = individual.F / TotalF;
}
//閫夋嫨
for(int i=0;i<4;i++)
{
//SelectIndividual(float p)鏄牴鎹殢鏈烘暟钀藉湪孌佃惤璁$畻閫夊彇鍝釜涓綋鐨勫嚱鏁?
MatingPool[i] = population[SelectIndividual(Random(0,1))];
}
//-------綆鍗曚氦鍙?--------------------------
//鐢變簬鍙湁4涓釜浣?閰嶅2嬈?
for(int i=0;i<2;i++)
{
MatingPool.Parents[i].Mother = MatingPool.RandomPop();
MatingPool.Parents[i].Father = MatingPool.RandomPop();
}
//浜ゅ弶鍚庡垱寤烘柊鐨勯泦鍥?
population.Clean();
foreach Parent in MatingPool.Parents
{
//娉ㄦ剰鍦╟opy 鍙屼翰鐨勬煋鑹蹭綋鏃跺湪鏌愪釜鍩哄洜搴т笂鍙戠敓鐨勫彉寮傛湭琛ㄧ幇.
child1 = Parent.Mother.DivHeader + Parent.Father.DivEnd;
child2 = Parent.Father.DivHeader + Parent.Mother.DivEnd;
population.push(child1);
population.push(child2);
}
}
灝忕粨:
閬椾紶綆楁硶涓渶閲嶈鐨勮繃紼嬪氨鏄夋嫨鍜屼氦鍙夈?
閫夋嫨瑕佽兘澶熷悎鐞嗙殑鍙嶆槧"閫傝呯敓瀛?鐨勮嚜鐒舵硶鍒欙紝鑰屼氦鍙夊繀欏誨皢鐢卞埄鐨勫熀鍥犲敖閲忛仐浼犵粰涓嬩竴浠?榪欎釜綆楁硶寰堝叧閿紒)
榪樻湁灝辨槸緙栫爜鐨勮繃紼嬭鑳藉浣跨紪鐮佸悗鐨勬煋鑹蹭綋鑳藉厖鍒嗗弽鏄犱釜浣撶殑鐗瑰緛騫朵笖鑳藉鏂逛究璁$畻銆?

]]>- 鍔熻兘涓板瘜鐨?Perl: 閬椾紶綆楁硶浠跨湡澶氱粏鑳?yōu)鏈轰?/title>http://www.tkk7.com/coundy/articles/109178.htmlCoundyCoundySat, 07 Apr 2007 15:51:00 GMThttp://www.tkk7.com/coundy/articles/109178.htmlhttp://www.tkk7.com/coundy/comments/109178.htmlhttp://www.tkk7.com/coundy/articles/109178.html#Feedback0http://www.tkk7.com/coundy/comments/commentRss/109178.htmlhttp://www.tkk7.com/coundy/services/trackbacks/109178.html鏉ユ簮:ChinaITLab
鎴戠殑鍓嶄袱綃囧叧浜庝嬌鐢?Perl 瀹炵幇閬椾紶綆楁硶錛圙A錛夌殑鏂囩珷錛堝弬闃?鍙傝冭祫鏂欙級(jí)璁茶堪鐨勬槸涓綋緇嗚優(yōu)鐨勫彉寮備笌鐢熷懡鍛ㄦ湡錛屽畠鐨勯傚悎搴︼紙fitness錛夊畬鍏ㄤ緷璧栦簬瀹冧滑鑷繁鐨?DNA銆傛湰鏂囧皢浠嬬粛濡備綍浠跨湡涓涓緇嗚優(yōu)鏈轟綋銆傚叿浣撶殑搴旂敤紼嬪簭灝嗕細(xì)鐢熸垚鐢卞叾澶嶆潅鎬у拰姝g‘鎬у喅瀹氱殑瀛楄皽錛坙etter puzzles錛夈傝鑾峰緱 GA 鐨勮儗鏅煡璇嗭紝鎮(zhèn)ㄥ簲璇ュ幓鍙傝冨厛鍓嶇殑涓ょ瘒鏂囩珷銆?br>銆銆
銆銆涓綋緇嗚優(yōu)鏄瓧璋滀腑鐨勫瓧姣嶅潡錛坙etter tiles錛夈傚畠浠殑閫傚悎搴﹀皢鍙栧喅浜庡畠浠笌鎵鏈夊叾浠栫粏鑳?yōu)鐨劸l勫悎錛屾墍浠ワ紝鍦ㄥ簲鐢ㄤ簬涓婁笅鏂囦箣鍓嶏紝緇嗚優(yōu) DNA 鏈韓娌℃湁鎰忎箟銆傝屼笖錛?DNA 蹇呴』杈冮暱錛屼絾騫朵笉澶嶆潅銆傚畠鍙槸瑕佸憡璇夋垜浠換鎰忎竴涓壒瀹氱粏鑳?yōu)鍙兘浼?xì)榪炴帴鍒板摢浜涘瓧姣嶏紝褰撶劧錛屽畠涔熶細(xì)鍛婅瘔鎴戜滑榪欎釜鐗瑰畾緇嗚優(yōu)鐨勫瓧姣嶏紙涔熷彲鑳芥槸涓涓┖鍧楋級(jí)銆?br>銆銆
銆銆閭d箞錛岃鎴戜滑鏉ュ紑濮嬭璁?
銆銆
銆銆浠跨湡璁捐
銆銆鏈変袱鏂歸潰鍩烘湰璁捐銆傞鍏堟槸涓綋緇嗚優(yōu)鐨勮璁★紝鍏舵鏄粏鑳?yōu)闂翠氦浜掔殑璁捐銆傛垜灝嗕粠涓綋緇嗚優(yōu)寮濮嬭璧楓?br>銆銆
銆銆鏈川涓婏紝姣忎釜緇嗚優(yōu)閮芥槸綰墊í鎷煎瓧璋滐紙crossword puzzle錛変腑鐨勪竴涓瓧姣嶃傞偅灝嗘槸 DNA 鐨勪竴涓墖孌點(diǎn)傝屼笖錛?DNA 灝嗗喅瀹氫竴涓粏鑳?yōu)涓庡叾浠栧瓧姣嶇殑閫傚悎紼嬪害銆傝繖鏍鳳紝瀵硅嫳鏂囩旱妯瓧璋滄潵璇達(dá)紝“an”鍜?#8220;he”灝嗘槸鍚堥傜殑緇勫悎錛岃?#8220;xz”灝嗕笉鏄傝繖騫朵笉鏄“xz”涓嶅彲鑳藉嚭鐜幫紝鑰屽彧鏄浣跨敤瀹冪敓鎴愮殑綰墊í瀛楄皽娌℃湁澶氶珮鐨勪環(huán)鍊箋傛垜灝嗕嬌鐢ㄤ竴涓瘝鍏革紝榪欎釜璇嶅吀榛樿浣嶄簬 GNU/Linux 緋葷粺鐨?/usr/share/dict/words 涓紙鑷沖皯鍦ㄦ垜鐨?Debian 緋葷粺涓槸榪欐牱 鈥斺?鍚﹀垯錛屽彲浠ヤ嬌鐢?whereis 鎴?locate 鍛戒護(hù)鏉ユ壘鍒板畠錛屽茍鐩稿簲鍦頒慨鏀?$words_file錛夈?br>銆銆
銆銆緇嗚優(yōu)涔嬮棿鐨勪氦浜掑皢鍙戠敓鍦ㄤ竴涓?N 涔?N 鐨勫瓧璋滀腑錛屽叾涓?N 鍦ㄥ懡浠よ涓粰瀹氾紝榛樿涓?10銆傚湪浠諱綍鏃跺埢閮戒細(xì)鏈?N^2 涓粏鑳?yōu)琚変腑錛岀暀涓?N*2 涓粏鑳?yōu)锛堟墍浠ワ紝鍦ㄤ竴涓?10x10 瀛楄皽鐨勫驚鐜懆鏈熶腑錛屾誨叡鏈?120 涓粏鑳?yōu)锛?jí)銆傝繖浜涙暟瀛楁槸浠繪剰鐨勶紝涓嶅お閲嶈錛屽彧涓嶈繃錛屼竴涓ぇ鐨?#8220;鏃犻檺鍒?#8221;鐨勬睜灝嗕嬌緇嗚優(yōu)閫夋嫨鐨勫肩殑閫傚悎搴﹂檷浣庯紝鑰屼竴涓皬鐨勬睜灝嗛檺鍒跺厓绱犵殑鏈轟細(xì)銆?br>銆銆
銆銆鎮(zhèn)ㄥ簲璇ヨ浣忥紝榪欓噷鐨勭洰鏍囦笉鏄敓鎴?#8220;姝g‘”鐨勮В鍐蟲柟妗?鈥斺?娌℃湁榪欐牱鐨勮В鍐蟲柟妗堛傜洰鏍囨槸浠跨湡緇嗚優(yōu)涔嬮棿鐨勪氦浜掞紝鐗瑰埆瑕佹敞鎰忓鉤琛″瓧姣嶇粏鑳?yōu)鎵闇瑕佺殑絀哄潡緇嗚優(yōu)銆?br>銆銆
銆銆浠庡垵濮嬬粏鑳?yōu)姹犱腑瀵咕l嗚優(yōu)鐨勯夋嫨鐢卞瓧姣嶅叧鑱旀ф潵瀹屾垚銆傚鏋滃湪瀛楄皽鏉匡紙puzzle board錛変笂娌℃湁鍏朵粬緇嗚優(yōu)錛岄偅涔堜換浣曠粏鑳?yōu)閮芥槸鍙互鐨勩備笉榪囷紝濡傛灉紼嬪簭姝e湪涓轟竴涓笌“A”鍜?#8220;Q”鐩擱偦鐨勫潡鏉ラ夋嫨緇嗚優(yōu)錛岄偅涔?#8220;A”鍜?#8220;Q”鐨勭粏鑳?yōu)鍏宠仈鎬у氨鏈夊叧緋諱簡(jiǎn)銆傚洜姝わ紝緇嗚優(yōu)鍏寵仈鎬ф槸 DNA 鐨勪竴涓熀鏈儴鍒嗭紝鍜岀粏鑳?yōu)鐨勫瓧姣嶄竴鏍峰彈鍒板彉寮傜殑褰卞搷銆傜粏鑳?yōu)鍏宠仈鎬х殑鑼冨洿鏄?0 鍒?255錛屾墍浠ュ彲浠ユ柟渚垮湴鐢?DNA 鐨勪竴涓瓧鑺傛潵鎻忚堪瀹冦?br>銆銆
銆銆鏈鍚庯紝鎴戝皢緙撳瓨緇嗚優(yōu)鎵鏋勬垚鐨勮瘝銆傛垜涓嶄細(xì)閲囩敤榪欑綆鍗曠殑鏂規(guī)硶錛氶夊嚭姣忎釜鍧楀茍鎸囧嚭瀹冩瀯鎴愬摢浜涜瘝銆傛?zhèn)ㄦ兂鐭ラ亾湄?fù)浠涔堝悧錛熷洜涓烘垜璇曡繃閭g鏂規(guī)硶錛屼負(fù)浜?jiǎn)寰楀埌姝<嫯鐨勬栆?guī)硶錛屾氮璐逛簡(jiǎn)濂藉涓皬鏃剁殑鏃墮棿錛岃屼笖瀹冨茍涓嶅揩!
銆銆
銆銆鎴戠殑鏂規(guī)硶鏄紝浠庡乏鍒板彸錛屼粠涓婂埌涓嬪璋滄澘榪涜鎵弿錛堜袱閬嶏紝榪欐槸涓轟簡(jiǎn)寰楀埌鍨傜洿鏂瑰悜鍜屾按騫蟲柟鍚戠殑璇嶏級(jí)銆傚綋鎵懼埌涓涓瘝鍚庯紝鎴戜細(xì)璁頒綇鏋勬垚閭d釜璇嶇殑緇嗚優(yōu)錛岀劧鍚庡皢閭d釜璇嶆坊鍔犲埌鎵鏈夐偅浜涚粏鑳?yōu)鐨勮瘝缂撳瓨涓傝瘝緙撳瓨鏄竴涓暟緇勶紝涓嶆槸鏁e垪琛紝鍙嶆槧鍑轟簨瀹炰笂鍚屼竴涓瘝鍙互鍑虹幇鍦ㄦ按騫蟲柟鍚戜笂錛屼篃鍙互鍑虹幇鍦ㄥ瀭鐩存柟鍚戜笂錛屼絾緇嗚優(yōu)鍙兘褰掍簬涓涓繖鏍風(fēng)殑璇嶃傚浜庡井涓嶈凍閬撶殑緇嗚優(yōu)鏉ヨ錛岄偅灝嗘槸鏋佸叾涓嶅叕騫崇殑銆?br>銆銆
銆銆瀵逛簬璋滄澘鑰岃█錛屽畠鏄竴涓畝鍗曠殑鏁e垪琛ㄣ傛垜灝濊瘯榪囦嬌鐢ㄥ祵濂楁暟緇勬潵浠跨湡涓涓煩闃碉紝涓嶈繃娌℃湁蹇呰閭d箞楹葷儲(chǔ)銆傛垜鍙渶瑕佷嬌鐢ㄤ竴涓叿鏈?x y 閿殑綆鍗曟暎鍒楄〃灝卞彲浠ュ畬鎴愪豢鐪熴傚敮涓鎵闇瑕佺殑鏄犲皠鏄?xy2index() 鍑芥暟錛涙垜緙栧啓浜?jiǎn)涓涓悕涓?index2xy() 鐨勫弽鍚戞槧灝勫嚱鏁幫紝浣嗘槸娌″繀瑕佷嬌鐢ㄥ畠銆?br>銆銆
銆銆涓庡厛鍓嶆枃绔犵殑涓嶅悓涔嬪
銆銆鏈枃涓殑紼嬪簭鏄垜鍏堝墠鎾板啓鐨勪袱綃囬仐浼犵畻娉曟枃绔犱腑 GA 浠跨湡紼嬪簭鐨勬敼榪涚増鏈傚熀浜庤鑰?Matt Neuberg 鐨勫緩璁紝浠ュ強(qiáng)鎴戞湰浜虹殑緇忛獙錛屾垜鍋氫簡(jiǎn)涓浜涗慨鏀廣?br>銆銆
銆銆select_parents() 鏄笉涓ユ牸鐨勶紝鍥犱負(fù)瀹冨皢涓嶉傚悎鐨勪翰鏈紙parents錛夌暀鍦ㄧ緹わ紙population錛変腑錛屽嵆浣垮畠浠殑閫傚悎搴︿負(fù) 0錛屼笉鍙兘琚夋嫨銆備負(fù)浜?jiǎn)绾犳閭d竴鐐癸紝鎴戞坊鍔犱簡(jiǎn)涓涓澶栫殑 grep() 璋冪敤銆?br>銆銆
銆銆recombine() 鍑芥暟
銆銆鎴戝簲璇ユ彁閱掓?zhèn)ㄥQ屽熀浜庝翰鏈殑閫傚悎搴︼紝浜叉湰縐嶇兢鍖呭惈鏈夊浜叉湰鐨勫涓紩鐢ㄣ備翰鏈秺閫傚悎錛屽湪浜叉湰縐嶇兢涓嚭鐜扮殑嬈℃暟灝變細(xì)澶氾紝鍥犺屽氨浼?xì)鏈夋洿澶氭溵Z細(xì)綣佹畺涓嬪幓銆?br>銆銆
銆銆recombine() 浣跨敤 List::Util shuffle() 鍑芥暟鏉ラ殢鏈虹粍鍚堜翰鏈緹ゃ傝繖鏍峰仛鐨勬晥鏋滃ソ浜庨夋嫨闅忔満浜叉湰騫朵繚鎸佸鍝簺宸茬粡鏄翰鏈殑榪借釜銆傚彟澶栵紝浠ュ墠絎簩涓翰鏈槸闅忔満閫夋嫨鍑烘潵鐨勶紝鑰屼笖鎴戣涓鴻繖鏍鋒槸瀵規(guī)紨鍖栫殑鐩稿綋鍑嗙‘鐨勬弿榪幫紝浣嗘槸鎴戞敼鍙樹簡(jiǎn)閭g鏂規(guī)硶錛岄氳繃灝嗗畠浠粠浜叉湰縐嶇兢涓夋嫨鍑烘潵鐒跺悗鍐嶆彃鍏ュ洖鍘葷殑鏂瑰紡錛屽熀浜庡畠浠殑閫傚悎搴︽潵閫夋嫨絎簩涓翰鏈?br>銆銆
銆銆娓呭崟 1. recombine() 鍑芥暟
銆銆
銆銆sub recombine
銆銆{
銆銆my $population = shift @_;
銆銆my $pop_size = scalar @$population; # population size
銆銆my @parent_population;
銆銆my @new_population;
銆銆
銆銆my $total_parent_slots = 0;
銆銆
銆銆$total_parent_slots += $_->{parent}
銆銆foreach @$population;
銆銆
銆銆my $position = 0;
銆銆
銆銆foreach my $individual (@$population)
銆銆{
銆銆foreach my $parenting_opportunity (1 .. $individual->{parent})
銆銆{
銆銆push @parent_population, $individual;
銆銆}
銆銆$individual->{parent} = 0;
銆銆}
銆銆
銆銆@parent_population = shuffle @parent_population;
銆銆
銆銆while (1)
銆銆{
銆銆# this could result in a parent breeding with itself, which is not a big deal
銆銆my $parent = shift @parent_population;
銆銆my $parent2 = shift @parent_population;
銆銆my $out_of_parents = 0;
銆銆
銆銆# when we're out of parents...
銆銆unless (defined $parent2)
銆銆{
銆銆$parent2 = $parent;
銆銆$out_of_parents = 1;
銆銆}
銆銆
銆銆my $child = { survived => 1, parent => 0, fitness => 0, dna => 0 };
銆銆
銆銆# this is breeding!
銆銆my $dna1 = $parent->{dna};
銆銆my $dna2 = $parent2->{dna};
銆銆
銆銆# note we do operations on BYTES, not BITS.銆This is because bytes
銆銆# are the unit of information (and preserving them is the faster
銆銆# breeding method)
銆銆foreach my $byte (1 .. $dna_byte_length)
銆銆{
銆銆# get one byte from either parent (the parent choice is random) and add it to the child
銆銆vec($child->{dna}, $byte-1, 8) = vec(((rand() < 0.5) ? $dna1 : $dna2), $byte-1, 8);
銆銆}
銆銆
銆銆push @new_population, $child; # the child is now a part of the new generation
銆銆push @parent_population, $parent2; # use the second parent again, but at the tail end
銆銆last if $out_of_parents;
銆銆}
銆銆
銆銆return \@new_population;
銆銆}
銆銆
銆銆娉ㄦ剰錛屽鏋滄渶鍚庝竴涓翰鏈伆濂芥槸鑷翰鏈緹や腑鑾峰緱鐨勶紝搴旇濡備綍鍘昏緗?$out_of_parents錛涢偅鏄煩鍑轟翰鏈夋嫨寰幆鐨勫敮涓閫斿緞銆?br>銆銆
銆銆鏋勫緩瀛楄皽
銆銆瀛楄皽緗戞牸鐢辯浉搴旂殑鍚嶄負(fù) build_puzzle() 鐨勫嚱鏁版潵鏋勫緩銆傜緹や腑鐨勬瘡涓涓釜浣撶粏鑳?yōu)閮藉湪鍐呴儴瀛樺偍浜?jiǎn)涓涓綉鏍間綅緗紝鎵浠ワ紝褰撴垜鎯寵鎵懼埌鏌愪釜緇嗚優(yōu)鐨勭綉鏍間綅緗椂錛屼笉蹇呮悳绱㈢綉鏍兼垨鑰呯淮鎸佷竴涓閮ㄦ暎鍒楄〃銆傛瘡涓涓釜浣撹繕鎷ユ湁涓涓?#8220;鍗曡瘝”鏁扮粍寮曠敤錛屽湪榪欎釜鏁扮粍涓繚鎸佹湁鍦ㄨ鐢熻繃紼嬩腑閭d釜涓綋鐢熸垚鐨勫崟璇嶃?br>銆銆
銆銆鍙﹀錛屾垜涓烘瘡涓粏鑳?yōu)璧嬩簣浜?jiǎn)涓涓?ID 灞炴э紝涓嶈繃鍙槸浣跨敤瀹冩潵媯(gè)鏌ョ畻娉曠殑姝g‘鎬с?br>銆銆
銆銆鍦?build_puzzle() 涓紝鎵鏈夌殑涓綋閮藉畨緗簬 @puzzle_population銆傛垜鍋氫簡(jiǎn)涓涓?@puzzle_population 鐨勬嫹璐濓紝榪欐牱鎴戝彲浠ヤ粠瀹冮噷闈㈠幓鍒犻櫎涓綋錛屼互浣垮緱瀵逛釜浣撶殑鏀瑰彉涓嶄細(xì)鏄案涔呯殑 鈥斺?瀹冩槸涓涓祬鎷瘋礉錛坰hallow copy錛夈傞夋嫨鍧楃殑欏哄簭鏄殢鏈虹殑錛屽啀嬈′嬌鐢ㄤ簡(jiǎn) List::Util::shuffle()銆傛敞鎰忥紝鎵鏈夌殑浣嶇疆閮藉瓨鍌ㄥ湪涓涓?[x,y] 鏁扮粍涓傞偅鏍鳳紝鏁版嵁鍙互鍍忓崟涓鐨勫弬鏁頒竴鏍蜂紶閫掞紝鑰屼笉鏄涓弬鏁般?br>銆銆
銆銆娓呭崟 2. build_puzzle() 鍑芥暟
銆銆
銆銆sub build_puzzle
銆銆{
銆銆my $population = shift @_;
銆銆
銆銆my @puzzle_population = @$population; # make a local copy we can alter
銆銆
銆銆my $i = 0;
銆銆foreach (@puzzle_population)
銆銆{
銆銆$_->{id} = $i++;
銆銆$_->{position} = undef;
銆銆$_->{words} = [];
銆銆}
銆銆
銆銆my $puzzle = {};
銆銆
銆銆my @positions;
銆銆
銆銆foreach my $row (0 .. $size-1)
銆銆{
銆銆foreach my $column (0 .. $size-1)
銆銆{
銆銆push @positions, [$row, $column];
銆銆}
銆銆}
銆銆
銆銆foreach my $p (shuffle @positions)
銆銆{
銆銆my $row銆銆= $p->[0];
銆銆my $column = $p->[1];
銆銆
銆銆my $cell =銆choose_tile(\@puzzle_population, $puzzle, $p);
銆銆$cell->{position} = $p;
銆銆$puzzle->{xy2index($p)} = $cell;
銆銆}
銆銆
銆銆return $puzzle;
銆銆}
銆銆
銆銆娉ㄦ剰錛屼笂闈㈢殑 recombine() 鍜?build_puzzle()涓紝浠ュ強(qiáng)紼嬪簭鎵鏈夊叾浠栦綅緗紝閮芥病鏈夌被浼間簬 $i 鐨勮鏁板櫒銆傜敱浜?Perl 娌℃湁鍐呭瓨鍒嗛厤闂錛屾墍浠ュ鎴戞潵璇寸己闄風(fēng)殑鏈涓昏鏉ユ簮灝辨槸榪借釜璁℃暟鍣ㄥ彉閲忕殑閿欒錛堥敊璇殑鍒濆鍖栵紝閿欒鐨勫閲忥紝鎴栬呴敊璇殑杈圭晫錛夈傝繖騫朵笉鏄鎴戝湪緙栧啓 Perl 紼嬪簭鐨勬椂鍊欏嚭鐜頒簡(jiǎn)寰堝緙洪櫡錛屽彧鏄垜鍙戠幇璁℃暟鍣ㄥ彉閲忎細(xì)澧炲姞浣跨敤鏃跺嚭鐜扮己闄風(fēng)殑鍙兘鎬с?br>銆銆
銆銆鐜板湪鐧誨満鐨勬槸 choose_tile()銆傚瓧璋滀腑鐨勬瘡涓涓綉鏍間綅緗兘浼?xì)璋冪敤瀹冩潵閫夋嫨涓涓皢鎴愪負(fù)瀛楄皽鍧楃殑緇嗚優(yōu)銆傚湪涓虹綉鏍?

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