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source: branches/CEDMA-Exporter-715/sources/HeuristicLab.Modeling/3.2/VariableQualityImpactCalculator.cs @ 3215

Last change on this file since 3215 was 2043, checked in by gkronber, 16 years ago

Added variable impact calculation operators for support vector machines. #644 (Variable impact of CEDMA models should be calculated and stored in the result DB)

File size: 2.0 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Text;
25using System.Xml;
26using HeuristicLab.Core;
27using HeuristicLab.Data;
28using HeuristicLab.DataAnalysis;
29using System.Linq;
30
31namespace HeuristicLab.Modeling {
32  public abstract class VariableQualityImpactCalculator : VariableImpactCalculatorBase<double> {
33    public override string Description {
34      get { return @"Calculates the impact of all allowed input variables on the quality of the model using evaluator supplied as suboperator."; }
35    }
36
37    public override string OutputVariableName {
38      get { return "VariableQualityImpacts"; }
39    }
40
41    protected override double CalculateImpact(double referenceValue, double newValue) {
42      return newValue / referenceValue;
43    }
44
45    protected override double CalculateValue(IScope scope, Dataset dataset, int targetVariable, ItemList<IntData> allowedFeatures, int start, int end) {
46      return CalculateQuality(scope, dataset, targetVariable, allowedFeatures, start, end);
47    }
48
49    protected abstract double CalculateQuality(IScope scope, Dataset dataset, int targetVariable, ItemList<IntData> allowedFeatures, int start, int end);
50  }
51}
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