Package aima.core.search.framework

Examples of aima.core.search.framework.DefaultGoalTest

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    map.addBidirectionalLink("c", "e", 1.0);
    map.addBidirectionalLink("d", "goal", 1.0);
    map.addBidirectionalLink("e", "goal", 5.0);
    Problem problem = new Problem("start",
        MapFunctionFactory.getActionsFunction(map),
        MapFunctionFactory.getResultFunction(), new DefaultGoalTest(
            "goal"), new MapStepCostFunction(map));

    HeuristicFunction hf = new HeuristicFunction() {
      public double h(Object state) {
        return 0; // Don't have one for this test
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  @Test
  public void testAlreadyAtGoal() {
    MapEnvironment me = new MapEnvironment(aMap);
    LRTAStarAgent agent = new LRTAStarAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("A"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction(), hf);
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
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  @Test
  public void testNormalSearch() {
    MapEnvironment me = new MapEnvironment(aMap);
    LRTAStarAgent agent = new LRTAStarAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("F"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction(), hf);
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
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  @Test
  public void testNoPath() {
    MapEnvironment me = new MapEnvironment(aMap);
    LRTAStarAgent agent = new LRTAStarAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("G"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction(), hf);
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    // Note: Will search forever if no path is possible,
    // Therefore restrict the number of steps to something
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  @Test
  public void testAIMA3eFigure3_23() throws Exception {
    Map romaniaMap = new SimplifiedRoadMapOfPartOfRomania();
    Problem problem = new Problem(SimplifiedRoadMapOfPartOfRomania.ARAD,
        MapFunctionFactory.getActionsFunction(romaniaMap),
        MapFunctionFactory.getResultFunction(), new DefaultGoalTest(
            SimplifiedRoadMapOfPartOfRomania.BUCHAREST),
        new MapStepCostFunction(romaniaMap));

    Search search = new GreedyBestFirstSearch(new TreeSearch(),
        new StraightLineDistanceHeuristicFunction(
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  @Test
  public void testAIMA3eFigure3_23_using_GraphSearch() throws Exception {
    Map romaniaMap = new SimplifiedRoadMapOfPartOfRomania();
    Problem problem = new Problem(SimplifiedRoadMapOfPartOfRomania.ARAD,
        MapFunctionFactory.getActionsFunction(romaniaMap),
        MapFunctionFactory.getResultFunction(), new DefaultGoalTest(
            SimplifiedRoadMapOfPartOfRomania.BUCHAREST),
        new MapStepCostFunction(romaniaMap));

    Search search = new GreedyBestFirstSearch(new GraphSearch(),
        new StraightLineDistanceHeuristicFunction(
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  @Test
  public void testAlreadyAtGoal() {
    MapEnvironment me = new MapEnvironment(aMap);
    OnlineDFSAgent agent = new OnlineDFSAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("A"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction());
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
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  @Test
  public void testNormalSearch() {
    MapEnvironment me = new MapEnvironment(aMap);
    OnlineDFSAgent agent = new OnlineDFSAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("G"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction());
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
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    aMap = new ExtendableMap();
    aMap.addBidirectionalLink("A", "B", 1.0);
    MapEnvironment me = new MapEnvironment(aMap);
    OnlineDFSAgent agent = new OnlineDFSAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("X"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction());
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());

    me.stepUntilDone();
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    aMap.addBidirectionalLink("2,3", "1,3", 1.0);

    MapEnvironment me = new MapEnvironment(aMap);
    OnlineDFSAgent agent = new OnlineDFSAgent(new OnlineSearchProblem(
        MapFunctionFactory.getActionsFunction(aMap),
        new DefaultGoalTest("3,3"), new MapStepCostFunction(aMap)),
        MapFunctionFactory.getPerceptToStateFunction());
    me.addAgent(agent, "1,1");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
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Related Classes of aima.core.search.framework.DefaultGoalTest

  • aima.core.environment.map.BidirectionalMapProblem
  • aima.test.core.unit.search.informed.AStarSearchTest
  • aima.test.core.unit.search.informed.GreedyBestFirstSearchTest
  • aima.test.core.unit.search.online.LRTAStarAgentTest
  • aima.test.core.unit.search.online.OnlineDFSAgentTest
  • aima.test.core.unit.search.uninformed.UniformCostSearchTest
  • aimax.osm.applications.SearchDemoOsmAgentApp$SDMapAgent
  • aimax.osm.routing.RouteFindingProblem
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