Naive Bayes (DataSet) OutlookTempHumidityWindyClass sunnyhothighfalseDon't Play sunnyhothightrueDon't Play overcasthothighfalsePlay rainymildhighfalsePlay.

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Presentation transcript:

Naive Bayes (DataSet) OutlookTempHumidityWindyClass sunnyhothighfalseDon't Play sunnyhothightrueDon't Play overcasthothighfalsePlay rainymildhighfalsePlay rainycoolnormalfalsePlay rainycoolnormaltrueDon’t Play overcastcoolnormaltruePlay sunnymildhighfalseDon’t Play sunnycoolnormalfalsePlay rainymildnormalfalsePlay sunnymildnormaltruePlay overcastmildhightruePlay overcasthotnormalfalsePlay rainymildhightrueDon’t Play

Naive Bayes (Disc-Naive-Bayes) Outlooktemperaturehumiditywindyplay yesnoyesnoyesnoyesnoyesno sunny23hot22High34False6295 overcast40mild42normal61true33 rainy32cool31 sunny2/93/5hot2/92/5high3/94/5false6/92/59/145/14 overcast4/90/5mild4/92/5normal6/95/5true3/93/5 rainy3/92/5cool3/91/5

Naive Bayes (Test) OutlookTempHumidityWindyClass sunnycoolhightrue? yes P(Class = yes | Outlook = sunny  Temp = cool  Humidity = high  Windy = true) no P(Class = no | Outlook = sunny  Temp = cool  Humidity = high  Windy = true) Teorema de Bayes

Naive Bayes (Test)

(Test)

(Test)

(Test)

(DataSet) OutlookTemp(ºF)HumidityWindyClass sunny85 falseDon't Play sunny8090trueDon't Play overcast8386falsePlay rainy7096falsePlay rainy6880falsePlay rainy6570trueDon’t Play overcast6465truePlay sunny7295falseDon’t Play sunny6970falsePlay rainy7580falsePlay sunny7570truePlay overcast7290truePlay overcast8175falsePlay rainy7191trueDon’t Play

Naive Bayes (Naive-Bayes) Outlooktemperaturehumiditywindyplay yesnoyesnoyesnoyesnoyesno sunny false6295 overcast true33 rainy

Outlooktemperaturehumiditywindyplay yesnoyesnoyesnoyesnoyesno sunny2/93/5  7374,6  79,186,2false6/92/59/145/14 overcast4/90/5  6,27,9  10,29,7true3/93/5 rainy3/92/5 Naive Bayes (Naive-Bayes)

(Test) OutlookTempHumidityWindyClass sunny6690true? yes P(Class = yes | Outlook = sunny  Temp = 66  Humidity = 90  Windy = true) no P(Class = no | Outlook = sunny  Temp = 66  Humidity = 90  Windy = true) Distribución Normal

Naive Bayes (Test)

(Test)