private static void GradDown(Game[] games)
{
Game g = games[random.Next(0, games.Length)];
double pred = 0f;
for (int i = 0; i < 5; i++)
{
pred += g.TA[i].Quality;
pred -= g.TB[i].Quality;
}
double diff = g.GoalDiff - pred;
diff = diff / 1000f;
int gameBoundary = 0;
double teamAValids = 0;
double teamBValids = 0;
for (int i = 0; i < 5; i++)
if (g.TA[i].GamesPlayed > gameBoundary)
teamAValids++;
for (int i = 0; i < 5; i++)
if (g.TB[i].GamesPlayed > gameBoundary)
teamBValids++;
for (int i = 0; i < 5; i++)
{
if (g.TA[i].GamesPlayed > gameBoundary)
g.TA[i].Quality += (diff / teamAValids);
if (g.TB[i].GamesPlayed > gameBoundary)
g.TB[i].Quality -= (diff / teamBValids);
}
}
public IEnumerable<Game> LoadWithGamesOmmitted(int gamesToOmit)
{
List<Game> gamesOmmitted = new List<Game>();
List<Game> gs = new List<Game>();
StreamReader sr = new StreamReader(".\\..\\..\\..\\Results.csv");
string contents = sr.ReadToEnd().Replace("\r", "");
sr.Dispose();
string[] x = contents.Split('\n');
for (int i = 1; i < 1011; i++)
{
string name = x[i].Split(',')[0];
if (!ps.ContainsKey(name))
{
ps[name] = new Player(name, 0);
ps[name].GamesPlayed = 1;
}
else
{
ps[name].GamesPlayed++;
}
}
const int GameThreshold = 5;
for (int i = 0; i < 101; i++)
{
Game g = new Game();
g.GoalDiff = double.Parse(x[i * 10 + 1].Split(',')[2]);
for (int a = 0; a < 5; a++)
g.TA[a] = ps[x[(i * 10) + a + 1].Split(',')[0]];
for (int b = 0; b < 5; b++)
g.TB[b] = ps[x[(i * 10) + b + 6].Split(',')[0]];
if (g.TA.All(z => z.GamesPlayed > 5) && g.TB.All(z => z.GamesPlayed > GameThreshold))
gs.Add(g);
}
Shuffle(gs);
for(int i=0; i< gamesToOmit; i++)
{
Game g = gs.Last();
gs.Remove(g);
gamesOmmitted.Add(g);
}
Games = gs.ToArray();
Players = ps.Where(z => z.Value.GamesPlayed > GameThreshold).Select(z => z.Value).ToArray();
return gamesOmmitted;
}
public double Predict(Game g)
{
double pred = 0f;
for (int i = 0; i < 5; i++)
{
pred += g.TA[i].Quality;
pred -= g.TB[i].Quality;
}
return pred;
}
public double Predict(Game g)
{
double[] whoPlayed = new double[m_PlayerCount];
for (int j = 0; j < m_PlayerCount; j++)
{
if (g.TA.Contains(m_Players[j])) whoPlayed[j] = 1;
else if (g.TB.Contains(m_Players[j])) whoPlayed[j] = -1;
else whoPlayed[j] = 0;
}
double predictedResult = CsvParser.RevConv(m_Bnn.ComputeOutputs(whoPlayed)[0]);
return predictedResult;
}
private void BuildGameData(Game[] games, Player[] players)
{
m_PlayerCount = players.Count();
Results = new double[games.Count()];
WhoPlayed = new double[games.Count()][];
for (int i = 0; i < games.Count(); i++)
{
Game g = games[i];
Results[i] = CsvParser.Conv(g.GoalDiff);
WhoPlayed[i] = new double[m_PlayerCount];
for (int j = 0; j < m_PlayerCount; j++)
{
if (g.TA.Contains(players[j])) WhoPlayed[i][j] = 1;
else if (g.TB.Contains(players[j])) WhoPlayed[i][j] = -1;
else WhoPlayed[i][j] = 0;
}
}
}
