I[o[bvWiOverlap coefficientj^Vv\WiSzymkiewicz-Simpson coefficientjƂ́HFAIE@BwK̗pꎫT
puI[o[bvWvɂĐBWԂ̗ގ]ړxŁAu2̏W̋ʕAꂩ̏Ŵ̏W̑傫ƔׂāAǂꂾ傫v𑪒肷邽߂ɎgpBl1ɋ߂قǁuĂvA0ɋ߂قǁuĂȂvӖBIȈvdvʂŗpĂB
p
@w^vw^@BwKɂI[o[bvWiOverlap coefficientjƂ́A2̏WŁűʕAꂩ̏Ŵ̏W̑傫ƔׂāAǂꂾ傫v̌vZlŗގ\ړxłB̓Iɂ́Au2̏W̋ʕiϏWFjvɊ܂܂vfAu2̏ŴA菬̏Wv̗vfŊ邱ƂŌvZi}1jB
@̃I[o[bvW̒ĺA0`1͈̔͂ɐKA1́uSɈvĂiĂjvA0́uSʓ_ȂiĂȂjvƂӖBI[o[bvẂȀWɗގx]邽߁Aގx̎ړxłWbJ[hW_CXWł͌\̂uIȈvvꍇɗLłBႦAK͂ȕf[^̒ũgsbNɊ֘A镶viIȈvjoۂȂǂŗLpłB
@I[o[bvẂAVv\WiSimpson coefficientAmɂ́uSzymkiewicz-Simpson coefficientFVLGB`EVv\WvjƂĂ邱ƂB{ꌗł́uVv\WvƂĂі̕ʂ肪悢Apꌗł́uOverlap coefficientvƂĂіʓIłBȂAwɂ́uSimpson's Diversity IndexiVv\̑lwjvƂpꂪ̂ŁAƍȂ悤ɒӂĂقi炭h߁Apꌗł́uOverlap coefficientvƂĂі̕ʓIȂ̂ł͂Ȃ낤jB
`Ɛ
@łɐ}1Ɩ`̉ŌvZ@ɌyĂ邪A炽߂ĐƂĂ܂Ƃ߁AvZĂB
@2̏W̃I[o[bvWAȂ킿u2̏W̋ʕiʂ̗vfjAꂼ̏Ŵ̏W̑傫ȉW̗vfjƔׂāAǂꂾ傫ijv߂鐔́Aȉ̂悤ɕ\BȂAƂwĹuW̋ʕviϏWFuvƓӖj\A|cc|͏W̗vf\B
@܂A|A B|́uWAƏWB̋ʕvɊ܂܂vf\Amin(|A|, |B|)2̏Ŵ̏W̗vf\B̐ɂČvZI[o[bvW̒ĺAقǂʂ0`1͈̔͂Ɏ܂B
@ႦAWA{1, 2}Ƃ2̗vf܂݁AWB{2, 3, 4}Ƃ3̗vf܂ޏꍇAA B{2}1̗vfƂȂAmin(|A|, |B|)͏Ȃ2̗vfłB̏ꍇ̃I[o[bvẂAȉ̂悤ɌvZA0.5ƂȂB
@̌ʂ́AuWAƏWBxAĂvƂӖB܂A2̏ẂuĂvƂuĂȂvƂȂԓIȏԂɂB
@OqʂAI[o[bvẂAl1ɋ߂قǗގĂA0ɋ߂قǗގĂȂƂBԓIȒlɂẮAɂẲ߂قȂ邽߁AړIɉď_ɔf邱ƂdvłB
@Of̐}1̗lɐƁAȉ̂悤ɂȂB
- WA{, L}2vfAWB{, n}2vfłꍇAAB͋Wi{@}j0vfłAmin(|A|, |B|)2vfƂȂ̂ŁAI[o[bvW020.0łB
- WA{, L}2vfAWB{L, , n}3vfłꍇAAB{L}1vfłAmin(|A|, |B|)2vfƂȂ̂ŁAI[o[bvW120.5łB
- WA{, , L, n}4vfAWB{, , L, n}4vfłꍇAAB{, , L, n}4vfłAmin(|A|, |B|)4vfƂȂ̂ŁAI[o[bvW441.0łB
pr
@I[o[bvWɂ́A`ł悤ɁȕWɊÂėގ]鐫v邽߁AiɁAقȂTCY̏WrꍇɂājIȈvP[XɗLłBɁAK͂ȃf[^Zbg̒̃p^[vfoہAIȈvdvƂȂ镪͂ɓKĂBႦAʂ̃eLXgf[^̒֘Â镶𒊏o鎩Rꏈ^XNłAI[o[bvWp邱ƂB
@܂AI[o[bvẂAf[^WƂĈlȕŗpĂBႦANX^OiF}1̂悤ȁũO[vvjɂāAقȂNX^Ԃł̕IȈvdꍇɗLłB܂A摜Fp^[FɂĂAI[o[bvWgāAIȈvdvȕ͂╪ރ^XNɖ𗧂Ă邱ƂB
@ɁA@BwKƂ͊WȂAW̕IȈv鐫AoCICtH}eBNX`wȂǁÄ`qz̈v]ۂɂp邱ƂB
3́uW̗ގxvwW̎gwj
@I[o[bvWiVv\Wj́AWbJ[hWiWbJ[hގxj_CXWƔɎwWł邽߁A̎gwjĂB
@3̌vZrƁA}1́uIɎĂv̗ƓeŌvZƁA
- WbJ[hWF 140.25ivZFʕ̗vfWŜ̗vfj
- _CXWF i2~1ji2{3j0.4ivZF2~ʕ̗vfW̗vf̍vj
- I[o[bvWF 120.5ivZFʕ̗vf̏W̗vfj
ƂȂB̗ႪʂAf[^ɑĂꂼ̗ގxvZꍇAʏ́A
@@WbJ[hW _CXW I[o[bvW
Ƃ召WɂȂB̊W܂āAg̎wjȉɂ܂Ƃ߂iApP[X蓾jB
- WbJ[hWiJaccard coefficientjF iIȈv⏭̈vdjS̓IȈvŗގxɕ]ʂŗLpBɈʓIȃNX^O╶ȂǁB
- _CXWiDice coefficientjF ̈vłmdvʁiʂvfȂĂÄv𗼏W̕ϓIȑ傫ɋʁjŗLpBႦAmȔ߂É摜̃ZOe[V^XNȂǁB
- I[o[bvWiOverlap coefficientjF IȈvdvʁiŜƂĈقȂvfŁAʕ̏Wɕ]ʁjŗLpBႦÃ̕gsbNL[[hɊ֘A镶To^XNȂǁB
@_CXWƃI[o[bvẄႢ͕Â炢Ȃ̂ŁAJԂɂȂ邪A⑫ĂB
@_CXẂüvvł́Auʂvf̐vɒڂ̂|CgBႦ{, L}{L, , n}ƂWꍇAʂvfȂĂA{L}1vĂ邱ƂɒڂB̏̈vގ̕]ɂđ傫ȈӖʂɁA_CXW͓KĂB
@ŁAI[o[bvẂuIȈvvł́AuʕWɂǂꂾ߂Ă邩vɒڂ̂|CgBႦ{, L}{L, , n}ƂWꍇAŜƂĈقȂvfŁA{L}ƂʕȕWɑāAǂꂾ傫Ȋ߂Ă邩vɒڂBʕe͂̑傫i߂銄jގ̕]ɔfʂɁAI[o[bvW͓KĂB
Copyright© Digital Advantage Corp. All Rights Reserved.
ڂ̃e[}
ITmedia̓ACeBfBAЂ̓o^WłB