_CXWiDice coefficientjƂ́HFAIE@BwK̗pꎫT
pu_CXWvɂĐBWԂ̗ގ]ړxŁAu2̏W̋ʕAꂼ̏W̑傫ƔׂāAǂꂾ傫v𑪒肷邽߂ɎgpBl1ɋ߂قǁuĂvA0ɋ߂قǁuĂȂvӖB̈vł̐mdvʂŗpĂB
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@w^vw^@BwKɂ_CXWiDice coefficientjƂ́A2̏WŁűʕAꂼ̏W̑傫ƔׂAǂꂾ傫v̌vZlŗގ\ړxłB̓Iɂ́Au2̏W̋ʕiϏWFjvɊ܂܂vf2{Au2̏Wꂼ̗vf̍vi2̏WɊ܂܂vf̕ς2{lɑjv邱ŌvZi}1jB
@̃_CXW̒ĺA0`1͈̔͂ɐKA1́uSɈvĂiĂjvA0́uSʓ_ȂiĂȂjvƂӖB_CXẂAʕ邽߁AdvfłƁAꂪėގxȂXB
@_CXẂA\[ZE_CXWiSørensen-Dice coefficientjƂĂ邱ƂB
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@łɐ}1Ɩ`̉ŌvZ@ɌyĂ邪A炽߂ĐƂĂ܂Ƃ߁AvZĂB
@2̏W̃_CXWAȂ킿u2̏W̋ʕi2̏Wɋʂ̗vf2{jAꂼ̏W̑傫i2̏WɊ܂܂vf̍vjƔׂāAǂꂾ傫ijv߂鐔́Aȉ̂悤ɕ\BȂAƂwĹuW̋ʕviϏWFuvƓӖj\A|cc|͏W̗vf\B
@܂A|A B|́uWAƏWB̋ʕvɊ܂܂vf\A|A||B|͂ꂼ̏W̗vf\B
@̃_CXW̐́Au2̏Wɋʂ̗vfA2̏WɊ܂܂vf̕ϒlŊvvZƓӖB̐ɂČvZ_CXW̒ĺAقǂʂ0`1͈̔͂Ɏ܂B
@ႦAWA{1, 2}Ƃ2̗vf܂݁AWB{2, 3}Ƃ2̗vf܂ޏꍇAA B{2}1̗vfƂȂA|A|{|B|2{24̗vfłB̏ꍇ̃_CXẂAȉ̂悤ɌvZA0.5ƂȂB
@̌ʂ́AuWAƏWBxAĂvƂӖB܂A2̏ẂuĂvƂuĂȂvƂȂԓIȏԂɂB
@OqʂA_CXẂAl1ɋ߂قǗގĂA0ɋ߂قǗގĂȂƂBԓIȒlɂẮAɂẲ߂قȂ邽߁AړIɉď_ɔf邱ƂdvłB
@Of̐}1̗lɐƁAȉ̂悤ɂȂB
- WA{, L}2vfAWB{, n}2vfłꍇAAB{@}0vfłA|A|{|B|2{24vfƂȂ̂ŁA_CXWi2~0j40.0łB
- WA{, L}2vfAWB{L, n}2vfłꍇAAB{L}1vfłA|A|{|B|2{24vfƂȂ̂ŁA_CXWi2~1j40.5łB
- WA{, , L, n}4vfAWB{, , L, n}4vfłꍇAAB{, , L, n}4vfłA|A|{|B|4{48vfƂȂ̂ŁA_CXWi2~4j81.0łB
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@_CXẂAWbJ[hގxƔɎwWł邪Aɂ镪̕qɂ鋤ʕiA Bj苭ĕ]BႦA}1́uIɎĂv̗ł́A_CXW0.5ƌvZĂ邪AeŃWbJ[hWvZ0.333...ƂȂB̂悤ɁAʕ荂]B
@̐邽߁A2̏WɏłvꍇɁÄv]P[XɗLłBɁA\̈vdvȓlރ^XNł́Ävł̐mdv邽߁A_CXW悭pBႦAaϕʂ̌oȂǁAmȔ߂É摜́iɃZOe[V^XNjłA_CXW͍LpĂB
@ɁAf[^WƂĈ܂܂ȕŃ_CXW͗pĂBႦANX^OiF}1̂悤ȁũO[vvjł́ANX^Ԃŏ̈vdꍇɗLłB܂ARꏈɂĂAeLXg̗ގx]邽߂Ɏgp邱ƂB
@Ȃ݂ɁAlރ^XN̕]wWłF1XRAiF1-scoreǰvŹA_CXW̌vZƓӖ߁Au_CXWiDice coefficientjvƌĂ邱ƂBF1XRAAʕiśuTPFTrue PositivevA܂zƂĐނꂽjĕ]wWłBF1XRA͕ރ^XN̐\]ɂāA_CXW͏W̗ގ]ɂāAꂼꊈpĂB
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@_CXẂAiM҂ׂł́j̃CuŌvZ蓮ŋLqKvB
@ȂASciPyCuɂdice邪A͖{eŐʓIȁu_CXWvł͂ȂA_CXuvގxiDice gdishsimilarityjvẐł邽߁AӂKvBA1|_CXގxi1_CXގxjƂvZ邱ƂŁAʓIȁu_CXWv߂邱ƂłB
@܂APyTorch̊{Cuɂ͊܂܂ȂAPyTorch LightningCuɂDiceNXAPyTorch IgniteCuɂDiceCoefficientNX܂܂ĂB̃NX́AieAPIhLg̐M҂ǂł́jɂ͕ރ^XN̕]ɍsgF1XRAiʖF_CXWjvZ邽߂̂̂ł邽߁AӂKvBPyTorch LightningDiceNX́AiM҂ł́jʓIȁu_CXWv̌vZɂpłB
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