#74 -- add some fuzzy rules

build.gradle

@@ -35,6 +35,9 @@ compileJava {
 repositories {
     mavenLocal()
     mavenCentral()
+    maven {
+        url="https://repository.ow2.org/nexus/content/repositories/public"
+    }
 }
 
 configurations {
@@ -65,6 +68,7 @@ dependencies {
 
     implementation group: 'com.ibm.icu', name: 'icu4j', version: '63.1'
     implementation group: 'org.eclipse.jgit', name: 'org.eclipse.jgit',  version: '5.9.0.202009080501-r'
+    implementation group: 'net.sourceforge.jFuzzyLogic', name: 'jFuzzyLogic', version: '1.2.1'
 
     implementation group: 'org.webjars', name: 'jquery', version: '3.6.0'
     implementation group: 'org.webjars', name: 'bootstrap', version: '4.6.0'

src/main/java/ru/ulstu/extractor/GitExtractorApplication.java

@@ -3,11 +3,14 @@ package ru.ulstu.extractor;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.scheduling.annotation.EnableScheduling;
+import ru.ulstu.extractor.rule.service.FuzzyInference;
 
 @SpringBootApplication
 @EnableScheduling
 public class GitExtractorApplication {
     public static void main(String[] args) {
+
+        new FuzzyInference().run();
         SpringApplication.run(GitExtractorApplication.class, args);
     }
 }

src/main/java/ru/ulstu/extractor/rule/service/FuzzyInference.java

@@ -0,0 +1,70 @@
+package ru.ulstu.extractor.rule.service;
+
+import net.sourceforge.jFuzzyLogic.defuzzifier.DefuzzifierCenterOfArea;
+import net.sourceforge.jFuzzyLogic.membership.MembershipFunctionTriangular;
+import net.sourceforge.jFuzzyLogic.rule.FuzzyRule;
+import net.sourceforge.jFuzzyLogic.rule.FuzzyRuleExpression;
+import net.sourceforge.jFuzzyLogic.rule.FuzzyRuleSet;
+import net.sourceforge.jFuzzyLogic.rule.FuzzyRuleTerm;
+import net.sourceforge.jFuzzyLogic.rule.LinguisticTerm;
+import net.sourceforge.jFuzzyLogic.rule.Variable;
+import net.sourceforge.jFuzzyLogic.ruleConnection.RuleConnectionMethodAndMin;
+import net.sourceforge.jFuzzyLogic.ruleImplication.RuleImplicationMethodMin;
+
+import java.util.Collections;
+import java.util.LinkedList;
+
+public class FuzzyInference {
+    public void run() {
+        FuzzyRule fuzzyRule = new FuzzyRule("rule 1");
+
+        Variable weather = new Variable("Погода");
+        weather.getLinguisticTerms().put("солнечно",
+                new LinguisticTerm("солнечно", new MembershipFunctionTriangular(10, 20, 30)));
+        weather.getLinguisticTerms().put("мороз",
+                new LinguisticTerm("мороз", new MembershipFunctionTriangular(-50, 0, 10)));
+        weather.setDefuzzifier(new DefuzzifierCenterOfArea(weather));
+
+
+        Variable suit = new Variable("Одежда");
+        suit.getLinguisticTerms().put("легко одет",
+                new LinguisticTerm("легко одет", new MembershipFunctionTriangular(0, 5, 10)));
+        suit.getLinguisticTerms().put("тепло одет",
+                new LinguisticTerm("тепло одет", new MembershipFunctionTriangular(5, 10, 20)));
+        suit.setDefuzzifier(new DefuzzifierCenterOfArea(suit));
+
+
+        Variable feel = new Variable("Ощущение");
+        feel.getLinguisticTerms().put("Холодно",
+                new LinguisticTerm("Холодно", new MembershipFunctionTriangular(0, 5, 10)));
+        feel.getLinguisticTerms().put("Жарко",
+                new LinguisticTerm("Жарко", new MembershipFunctionTriangular(5, 10, 20)));
+        feel.setDefuzzifier(new DefuzzifierCenterOfArea(feel));
+
+        FuzzyRuleTerm weatherTerm1 = new FuzzyRuleTerm(weather, "солнечно", false);
+        //FuzzyRuleTerm weatherTerm2 = new FuzzyRuleTerm(weather, "мороз", false);
+        //FuzzyRuleTerm weatherTerm3 = new FuzzyRuleTerm(weather, "дождливо", false);
+
+        //FuzzyRuleTerm suitTerm1 = new FuzzyRuleTerm(suit, "легко одет", false);
+        FuzzyRuleTerm suitTerm2 = new FuzzyRuleTerm(suit, "тепло одет", false);
+        //FuzzyRuleTerm suitTerm3 = new FuzzyRuleTerm(suit, "промокающая", false);
+
+        //FuzzyRuleTerm feelCold = new FuzzyRuleTerm(feel, "Холодно", false);
+        FuzzyRuleTerm feelWarm = new FuzzyRuleTerm(feel, "Жарко", false);
+        //FuzzyRuleTerm feelBad = new FuzzyRuleTerm(feel, "Сыро", false);
+
+
+        FuzzyRuleExpression expression1 = new FuzzyRuleExpression(weatherTerm1, suitTerm2, new RuleConnectionMethodAndMin());
+        //FuzzyRuleExpression expression2 = new FuzzyRuleExpression(weatherTerm2, suitTerm1, new RuleConnectionMethodAndMin());
+        fuzzyRule.setAntecedents(expression1);
+        fuzzyRule.setConsequents(new LinkedList<>(Collections.singleton(feelWarm)));
+
+        fuzzyRule.evaluate(new RuleImplicationMethodMin());
+
+        FuzzyRuleSet set = new FuzzyRuleSet();
+        set.add(fuzzyRule);
+        set.evaluate();
+
+        System.out.println(fuzzyRule.toString());
+    }
+}