Example #1
0
        public MCTSSolver(Domain dom, Heuristic h)
        {
            this.dom        = dom;
            this.h          = h;
            this.root       = TreeNode.createRoot(dom.initialState);
            TreeNode.dom    = dom;
            TreeNode.solver = this;
            //TODO only 1 MCTS solver may run at the same time!!

            bestPlan  = null;
            bestValue = int.MaxValue;
            //this.perfoHeuristic = new BestPerformancePolicy(dom);

            this.maxSimulationLength = 50;

            //Heuristic simulationHeuristic = new WeightedHeuristic(new NotAccomplishedGoalCount(dom), 10);
            Heuristic simulationHeuristic = new WeightedHeuristic(new FFHeuristic(dom), 10);

            //this.simulationPolicy = new RandomSimulationPolicy(dom, maxSimulationLength);
            //this.simulationPolicy = new HeuristicGreedySearch(new NotAccomplishedGoalCount(dom), dom, maxSimulationLength);
            //this.simulationPolicy = new HeuristicGreedySearch(new FFHeuristic(dom), dom, maxSimulationLength);
            //this.simulationPolicy = new AStarSimulationPolicy(simulationHeuristic, dom, maxSimulationLength);
            //this.simulationPolicy = new F_LimitedAStarSimulationPolicy(simulationHeuristic, dom, maxSimulationLength, 2 * maxSimulationLength);
            //this.simulationPolicy = new BeamSearchPolicy(simulationHeuristic, dom, 2);

            CompositeSimulationPolicy policy = new CompositeSimulationPolicy();

            policy.addPolicy(new RandomSimulationPolicy(dom, maxSimulationLength));
            policy.addPolicy(new HeuristicGreedySearch(new FFHeuristic(dom), dom, maxSimulationLength));
            policy.addPolicy(new AStarSimulationPolicy(simulationHeuristic, dom, maxSimulationLength));
            policy.addPolicy(new BeamSearchPolicy(simulationHeuristic, dom, 2));

            this.simulationPolicy = policy;

            this.ev = new HeuristicPlanEvaluator(dom, h, maxSimulationLength);
        }
Example #2
0
 public Plan(Domain d, PlanEvaluator ev)
 {
     this.actions = new List <int>();
     this.dom     = d;
     this.ev      = ev;
 }