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Last change
on this file since 12332 was
12332,
checked in by gkronber, 10 years ago
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#2261: initial import of gradient boosted trees for regression
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File size:
659 bytes
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| 1 | using System;
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| 2 | using System.Collections.Generic;
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| 3 | using System.Linq;
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| 4 | using System.Text;
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| 5 | using System.Threading.Tasks;
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| 6 | using HeuristicLab.Core;
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| 7 |
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| 8 | namespace GradientBoostedTrees {
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| 9 | public delegate double LineSearchFunc(int[] idx, int startIdx, int endIdx);
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| 10 |
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| 11 | public interface ILossFunction {
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| 12 | double GetLoss(IEnumerable<double> target, IEnumerable<double> pred, IEnumerable<double> weight);
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| 13 | IEnumerable<double> GetLossGradient(IEnumerable<double> target, IEnumerable<double> pred, IEnumerable<double> weight);
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| 14 | LineSearchFunc GetLineSearchFunc(IEnumerable<double> target, IEnumerable<double> pred, IEnumerable<double> weight);
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| 15 | }
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| 16 | }
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