112 lines
3.5 KiB
Plaintext
112 lines
3.5 KiB
Plaintext
FUNCTION_BLOCK qualify
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VAR_INPUT
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scoring : REAL; // Account owner's scoring
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sel : REAL; // Social economic level
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occupation_type: REAL; // enum_occupation_type.rid
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city: REAL; // City (actually Zip code)
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scoring_partner : REAL; // Partner's scoring
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END_VAR
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VAR_OUTPUT
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qualify : REAL; // Qualify
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credLimMul : REAL; // Credit limit multiplier
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END_VAR
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// Scoring : [0,1000]
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FUZZIFY scoring
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TERM veryHigh := TRAPE 850 900 1000 1000;
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TERM high := TRAPE 650 700 900 1000;
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TERM midHigh := TRAPE 500 550 700 900;
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TERM midLow := TRAPE 380 420 550 700;
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TERM low := TRAPE 0 0 420 550;
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END_FUZZIFY
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// Social economic level: {A,B,C1,C2,C3,D1,D2,E}
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FUZZIFY sel
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TERM a := SIGM 0.01 4500; // Use sigm
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TERM b := TRAPE 2000 3000 5000 10000;
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TERM c1 := TRAPE 1300 2000 3000 5000;
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TERM c2 := TRAPE 900 1300 2000 3000;
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TERM c3 := TRAPE 600 900 1300 2000;
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TERM d1 := TRAPE 400 600 900 1300;
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TERM low := TRAPE -100 0 600 900;
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END_FUZZIFY
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// City (zip code < 1900 => BsAs)
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FUZZIFY city
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TERM bsas := TRAPE 0 0 1899 1900;
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TERM other := TRAPE 1900 1900 10000 10000;
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END_FUZZIFY
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// Occupation type rid
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// Good ones: { Hired State Employee, Hired Private company Employee, Contractor State Employee}
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// Rids: { 9, 10 ,11 }
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FUZZIFY occupation_type
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TERM good := TRAPE 8.5 9 11 11.5;
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TERM other_1 := TRAPE 0 0 8 8.5;
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TERM other_2 := TRAPE 11.5 12 20 20;
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END_FUZZIFY
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// Partner's Scoring : [0,1000]
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FUZZIFY scoring_partner
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TERM midLow := TRAPE 0 420 550 700;
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TERM low := TRIAN 0 0 420;
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TERM noPartner := TRAPE -100 -50 -1 0; // No partner
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TERM fakeRange := (0,0) (1000,0); // Fake term: it's always 0. Used to simulate 'range' (0..1000)
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END_FUZZIFY
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// Qualify : {accept,manual_accept,manual_reject,reject}
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DEFUZZIFY qualify
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METHOD : COG;
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DEFAULT := 0;
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TERM accept := TRIAN 3 4 5; // Center in 4
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TERM manual_accept := TRIAN 2 3 4; // Center in 3
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TERM manual_reject := TRIAN 1 2 3; // Center in 2
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TERM reject := TRIAN 0 1 2; // Center in 1
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END_DEFUZZIFY
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// Credit limit multiplier
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DEFUZZIFY credLimMul
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METHOD : COG;
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DEFAULT := 0;
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TERM veryHigh := TRIAN 3 3.5 4;
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TERM high := TRIAN 2 3 3.5;
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TERM midHigh := TRIAN 1 2 3;
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TERM midLow := TRIAN 0 0.5 1;
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TERM low := TRIAN -2 -1 0;
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END_DEFUZZIFY
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RULEBLOCK No1
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ACCU : MAX;
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AND : MIN;
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ACT : MIN;
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// Scoring rules
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RULE 1 : IF scoring IS veryHigh THEN qualify IS accept , credLimMul IS veryHigh;
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RULE 2 : IF scoring IS high THEN qualify IS accept , credLimMul IS high;
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RULE 3 : IF scoring IS midHigh THEN qualify IS manual_accept , credLimMul IS midHigh;
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RULE 4 : IF scoring IS midLow THEN qualify IS manual_reject , credLimMul IS midLow;
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RULE 5 : IF scoring IS low THEN qualify IS reject , credLimMul IS low;
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// Social economic level
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RULE 6 : IF sel IS a OR sel IS b THEN qualify IS accept , credLimMul IS veryHigh;
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RULE 7 : IF sel IS c1 THEN qualify IS accept , credLimMul IS high;
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RULE 8 : IF sel IS c2 THEN qualify IS manual_accept , credLimMul IS midHigh;
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RULE 9 : IF sel IS c3 THEN qualify IS manual_reject , credLimMul IS midLow;
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RULE 10 : IF sel IS d1 OR sel IS low THEN qualify IS reject , credLimMul IS low;
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// Ocupation type
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RULE 11 : IF NOT occupation_type IS good THEN qualify IS reject , credLimMul IS low;
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// City
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RULE 12 : IF city IS other AND (scoring IS midLow OR scoring IS low) THEN qualify IS reject , credLimMul IS low;
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// Partner's scoring
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RULE 12 : IF scoring_partner IS midLow THEN qualify IS manual_reject , credLimMul IS midLow;
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RULE 13 : IF scoring_partner IS low THEN qualify IS reject , credLimMul IS low;
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END_RULEBLOCK
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END_FUNCTION_BLOCK
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