public EvalControlTestForm()
{
InitializeComponent();
seed = Environment.TickCount;
type = EvaluationGraphType.TrigonometricSigmoid;
reverse = false;
evaldata = new EvaluationGraphData
{
data_array = new[]
{
new GameEvaluationData()
{
values = new List <EvalValue>()
},
new GameEvaluationData()
{
values = new List <EvalValue>()
},
},
selectedIndex = -1,
maxIndex = 0,
type = type,
reverse = reverse,
};
}
/// <summary>
/// 評価値から[-1,+1]のy軸値に変換する関数の取得
/// EvalValue.NoValue の時は float.NaN を返す
/// </summary>
public static System.Func <EvalValue, float> MakeEval2VertFunc(EvaluationGraphType type, bool reverse)
{
switch (type)
{
case EvaluationGraphType.Normal:
// 普通の
// reverse == false, 返り値が { -1, -0.5, 0, +0.5, +1 } の場合、それぞれ評価値 { -3000以下, -1500, 0, +1500, +3000以上 } に相当
return((EvalValue v) => v == EvalValue.NoValue ? float.NaN :
(reverse ? -1 : +1) * System.Math.Min(System.Math.Max((float)v / 3000f, -1f), +1f));
case EvaluationGraphType.TrigonometricSigmoid:
// ShogiGUIの非線形
// 途中の定数は ±1000 の入力で ±0.5 を返す値
// reverse == false, 返り値が { -1, -0.5, 0, +0.5, +1 } の場合、それぞれ評価値 { -∞, -1000, 0, +1000, +∞ } に相当
return((EvalValue v) => v == EvalValue.NoValue ? float.NaN :
(reverse ? -1 : +1) * (float)(System.Math.Asin(System.Math.Atan((double)v * 0.00201798867190979486291580478906) * 2 / System.Math.PI) * 2 / System.Math.PI));
case EvaluationGraphType.WinningRate:
// 勝率
// reverse == false, 返り値が { -1, -0.5, 0, +0.5, +1 } の場合、それぞれ勝率 { 0%, 25%, 50%, 75%, 100% } に相当
return((EvalValue v) => v == EvalValue.NoValue ? float.NaN :
(reverse ? -1 : +1) * (float)(System.Math.Tanh((double)v / 1200.0)));
default:
// 未定義
// とりあえず 0 か NaN を返す
return((EvalValue v) => v == EvalValue.NoValue ? float.NaN : 0f);
}
}
private void WinRateUpdate_Click(object sender, EventArgs e)
{
evaldata.type = type = EvaluationGraphType.WinningRate;
EvalUpdate(evaldata);
}
private void NonlinearUpdate_Click(object sender, EventArgs e)
{
evaldata.type = type = EvaluationGraphType.TrigonometricSigmoid;
EvalUpdate(evaldata);
}
private void LinearUpdate_Click(object sender, EventArgs e)
{
evaldata.type = type = EvaluationGraphType.Normal;
EvalUpdate(evaldata);
}
/// <summary>
/// 評価値グラフ用データ生成
/// </summary>
public EvaluationGraphData GetEvaluationGraphDataCommand(EvaluationGraphType evalType = EvaluationGraphType.TrigonometricSigmoid, bool reverse = false)
{
var dataList = new System.Collections.Generic.List <GameEvaluationData>
{
new GameEvaluationData {
values = new System.Collections.Generic.List <EvalValue>()
},
new GameEvaluationData {
values = new System.Collections.Generic.List <EvalValue>()
},
};
var ply = kifuManager.Tree.gamePly - 1;
var n = kifuManager.Tree.currentNode;
var endIndex = -1;
while (true)
{
if (n.evalList != null)
{
while (n.evalList.Count > dataList.Count)
{
dataList.Add(new GameEvaluationData {
values = new System.Collections.Generic.List <EvalValue>()
});
}
for (var p = 0; p < n.evalList.Count; ++p)
{
while (ply >= dataList[p].values.Count)
{
dataList[p].values.Add(EvalValue.NoValue);
}
dataList[p].values[ply] = n.evalList[p].Eval;
endIndex = System.Math.Max(endIndex, ply);
}
}
if (n.prevNode == null)
{
break;
}
n = n.prevNode;
--ply;
}
for (n = kifuManager.Tree.currentNode, ply = kifuManager.Tree.gamePly; n.moves.Count > 0; ++ply)
{
n = n.moves[0].nextNode;
if (n == null)
{
break;
}
if (n.evalList == null)
{
continue;
}
while (n.evalList.Count > dataList.Count)
{
dataList.Add(new GameEvaluationData {
values = new System.Collections.Generic.List <EvalValue>()
});
}
for (var p = 0; p < n.evalList.Count; ++p)
{
while (ply >= dataList[p].values.Count)
{
dataList[p].values.Add(EvalValue.NoValue);
}
dataList[p].values[ply] = n.evalList[p].Eval;
endIndex = System.Math.Max(endIndex, ply);
}
}
foreach (var data in dataList)
{
while (data.values.Count <= endIndex)
{
data.values.Add(EvalValue.NoValue);
}
}
return(new EvaluationGraphData
{
data_array = dataList.ToArray(),
maxIndex = endIndex + 1,
selectedIndex = kifuManager.Tree.gamePly - 1,
type = evalType,
reverse = reverse,
});
}
