o02Weight (1)=0.9VerymodemNot very expensive Su, =0.7=0.6SomewhatcuteSomewhat cute S,,=0.5Very modern Sμz = 0.3.MeetsallofthedesiresTotalscore =1.5Total score =1.6S, = 0.1 Not very expensive.The lowest score among the attribute evaluation values is the evaluation value of the object(s". ≥s'm, ≥s"m.Em=μ×sm+μ,×sm2+u,×sm3H2Consider onlythe smallestμ =0.0, μ2 = 0.0, μ =1.0attribute value..Then,theobject withthehighestscoreamongtheaboveevaluationscores is selected.Intheexampleabove:O,isselectedbecauseE, =0.3, E, =0.1Max-minstrategy:Astrategyusuallyusedinriskmanagement,asolidstrategy
Weight (1) • Meets all of the desires • The lowest score among the attribute evaluation values is the evaluation value of the object • Then, the object with the highest score among the above evaluation scores is selected. In the example above: is selected because • Max-min strategy : A strategy usually used in risk management, a solid strategy µ1 = 0.0, µ2 = 0.0, µ3 =1.0 ( ) 1 1 2 2 3 3 1 2 3 m m m m m m m E = µ × s ′ + µ × s ′ + µ × s ′ s ′ ≥ s ′ ≥ s ′ E1 = 0.3, E2 = 0.1 o1 6 Consider only the smallest attribute value
o0.Weight (2),=0.9VerymodemNot very expensive Su, =0.7=0.6SomewhatcuteSomewhat cute S,,=0.5Very modern Sμz = 0.3.MeetsatleastonedesireTotalscore =1.5Total score =1.6S,, = 0.1 Not very expensive.The highest score among the attribute evaluation values is the overall evaluation value(s". ≥s', ≥s".Em=μ×sm+μ,×sm2+u,×sm32Consideronlythelargestμ =1.0, μz = 0.0, μ, = 0.0attribute value..Then,the object with thehighestscoreamong theabove evaluation scores is selected.Intheexampleabove:O,isselectedbecauseE, =0.7, E, =0.9Max-maxstrategy:Riskisbig,butifyouhititwell yougetabigreturn
Weight (2) • Meets at least one desire • The highest score among the attribute evaluation values is the overall evaluation value • Then, the object with the highest score among the above evaluation scores is selected. In the example above: is selected because • Max-max strategy: Risk is big, but if you hit it well you get a big return. µ1 =1.0, µ2 = 0.0, µ3 = 0.0 ( ) 1 1 2 2 3 3 1 2 3 m m m m m m m E = µ × s ′ + µ × s ′ + µ × s ′ s ′ ≥ s ′ ≥ s ′ E1 = 0.7, E2 = 0.9 o2 7 Consider only the largest attribute value
Weight (3)0102S22=0.9VerymodernEvaluationvalueNotveryexpensiveSi,=0.7S2,=0.6 Somewhat cuteSomewhat cuteS.=0.5Verymodern S,=0.3Total score=1.5Total score =1.6S23 =0.1 Not very expensive21.11E.x0.5x0.3.Meets the desires as many as possible.0133320.8E,×0.6+x0.1:μj= 0.0, μ2 =1/3, μ3 =2 /3333211.9.Meetsal leasthalfof thedesires.02E,x0.5x0.7333212.4μ= 2 /3, μ2 =1/3, 3 = 0.0×0.6=E, =0.9+333
Weight (3) • Meets the desires as many as possible. • Meets al least half of the desires. µ1 = 0.0, µ 2 = 1/ 3, µ3 = 2 / 3 2 / 3, 1/ 3, 0.0 µ1 = µ 2 = µ3 = 1 o o2 8 3 0.8 0.1 3 2 0.6 3 1 3 1.1 0.3 3 2 0.5 3 1 2 1 = × + × = = × + × = E E Somewhat cute Very modern Not very expensive Somewhat cute Very modern Not very expensive Evaluation value Total score =1.5 Total score =1.6 o1 o2 0.5 s11 = s12 = 0.3 s13 = 0.7 s21 = 0.6 s22 = 0.9 0.1 s23 = 3 2.4 0.6 3 1 0.9 3 2 3 1.9 0.5 3 1 0.7 3 2 2 1 = × + × = = × + × = E E
Another examplePleaseshowmesomeceramiccoffeecups, which are somewhat cute,verymodern,butnotveryexpensiveCupO3Cup OsCup 02Cup 04Cup O1
Another example 9 Cup o2 Cup Cup o4 o3 Cup Cup o1 o5 Please show me some ceramic coffee cups, which are somewhat cute, very modern, but not very expensive
Evaluation of coffee cups·HerdesiresareSomewhatcute,Verymodern'andNotveryexpensive'(say,3,oooYen).·SheevaluatedthesefivecupsusingherKansei,andtheopinionof theshopowner.TastefulCuteTraditional←→ModernExpensive←→CheapWiW2 (Opinion of the owner)W3 (Objective value)(Her Kansei)Cup (o))SomewhattastefulorNeutralModern￥6,000Cup (02)Cute￥5,500NeutralorSomewhatmodernCup (03)￥1,500TastefulorSomewhattastefulSomewhatmodernCup (04)VerycuteSomewhattraditionalorNeutral￥3,500Cup (os)￥6,000TastefulorSomewhattastefulModernorVerymodern10
Evaluation of coffee cups • Her desires are ‘Somewhat cute’, ‘Very modern’ and ‘Not very expensive’ (say, 3,000 Yen). • She evaluated these five cups using her Kansei, and the opinion of the shop owner. Tasteful Cute (Her Kansei) Traditional Modern (Opinion of the owner) Expensive Cheap (Objective value) Cup ( ) Somewhat tasteful or Neutral Modern ¥6,000 Cup ( ) Cute Neutral or Somewhat modern ¥5,500 Cup ( ) Tasteful or Somewhat tasteful Somewhat modern ¥1,500 Cup ( ) Very cute Somewhat traditional or Neutral ¥3,500 Cup ( ) Tasteful or Somewhat tasteful Modern or Very modern ¥6,000 10 o1 o2 3 o o4 5 o w1 w2 w3