private static List <DataFuzzy> MF_JlhData(int jlhData)
{
List <DataFuzzy> hasilMembershipFunction = new List <DataFuzzy>();
DataFuzzy sedikit = new DataFuzzy(); sedikit.kategori = "Sedikit";
DataFuzzy banyak = new DataFuzzy(); banyak.kategori = "Banyak";
if (jlhData <= 10)
{
sedikit.nilai = 1;
banyak.nilai = 0;
}
else if (jlhData > 10 && jlhData < 50)
{
sedikit.nilai = (50 - jlhData) / (50 - 10);
banyak.nilai = (jlhData - 10) / (50 - 10);
}
else
{
sedikit.nilai = 0;
banyak.nilai = 1;
}
hasilMembershipFunction.Add(sedikit);
hasilMembershipFunction.Add(banyak);
return(hasilMembershipFunction);
}
private static List <DataFuzzy> MF_JlhSource(int jlhSource)
{
List <DataFuzzy> hasilMembershipFunction = new List <DataFuzzy>();
DataFuzzy single = new DataFuzzy(); single.kategori = "Single";
DataFuzzy multi = new DataFuzzy(); multi.kategori = "Multi";
if (jlhSource <= 1)
{
single.nilai = 1;
multi.nilai = 0;
}
else if (jlhSource > 1 && jlhSource < 2)
{
single.nilai = (2 - jlhSource) / (2 - 1);
multi.nilai = (jlhSource - 1) / (2 - 1);
}
else
{
single.nilai = 0;
multi.nilai = 1;
}
hasilMembershipFunction.Add(single);
hasilMembershipFunction.Add(multi);
return(hasilMembershipFunction);
}
private static List <DataFuzzy> MF_JlhLength(int jlhLength)
{
List <DataFuzzy> hasilMembershipFunction = new List <DataFuzzy>();
DataFuzzy pendek = new DataFuzzy(); pendek.kategori = "Pendek";
DataFuzzy normal = new DataFuzzy(); normal.kategori = "Normal";
DataFuzzy panjang = new DataFuzzy(); panjang.kategori = "Panjang";
if (jlhLength <= 60)
{
pendek.nilai = 1;
normal.nilai = 0;
panjang.nilai = 0;
}
else if (jlhLength > 60 && jlhLength < 90)
{
pendek.nilai = (90 - jlhLength) / (90 - 60);
normal.nilai = (jlhLength - 60) / (90 - 60);
panjang.nilai = 0;
}
else if (jlhLength >= 90 && jlhLength < 120)
{
pendek.nilai = 0;
normal.nilai = (120 - jlhLength) / (120 - 90);
panjang.nilai = (jlhLength - 90) / (120 - 90);
}
else
{
pendek.nilai = 0;
normal.nilai = 0;
panjang.nilai = 1;
}
hasilMembershipFunction.Add(pendek);
hasilMembershipFunction.Add(normal);
hasilMembershipFunction.Add(panjang);
return(hasilMembershipFunction);
}
private static DataFuzzy InferenceProcess(DataFuzzy dt_JlhData, DataFuzzy dt_jlhSource, DataFuzzy dt_JlhLength)
{
DataFuzzy dataInference = new DataFuzzy();
if (dt_JlhData.kategori.ToUpper() == "Sedikit".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Single".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Pendek".ToUpper())
{
dataInference.kategori = "Rendah";
}
else if (dt_JlhData.kategori.ToUpper() == "Sedikit".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Single".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Normal".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Sedikit".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Single".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Panjang".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Sedikit".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Multi".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Pendek".ToUpper())
{
dataInference.kategori = "Rendah";
}
else if (dt_JlhData.kategori.ToUpper() == "Sedikit".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Multi".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Normal".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Sedikit".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Multi".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Panjang".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Banyak".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Single".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Pendek".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Banyak".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Single".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Normal".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Banyak".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Single".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Panjang".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Banyak".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Multi".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Pendek".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Banyak".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Multi".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Normal".ToUpper())
{
dataInference.kategori = "Tinggi";
}
else if (dt_JlhData.kategori.ToUpper() == "Banyak".ToUpper() &&
dt_jlhSource.kategori.ToUpper() == "Multi".ToUpper() &&
dt_JlhLength.kategori.ToUpper() == "Panjang".ToUpper())
{
dataInference.kategori = "Tinggi";
}
dataInference.nilai = Math.Min(dt_JlhData.nilai, Math.Min(dt_jlhSource.nilai, dt_JlhLength.nilai));
return(dataInference);
}
private static decimal DDosDetectorUsingFuzzyLogic(DataForFuzzy dataForFuzzy)
{
decimal nilaiPrediksi = 0M;
#region Fuzzifikasi
List <DataFuzzy> f_jlhData = MF_JlhData(dataForFuzzy.jlhData);
List <DataFuzzy> f_jlhSource = MF_JlhSource(dataForFuzzy.jlhSource);
List <DataFuzzy> f_jlhLength = MF_JlhLength(dataForFuzzy.jlhLength);
#endregion
#region Inference : Conjunction-Disjunction (Min-Max)
//Conjunction (Min)
List <DataFuzzy> hasilConjunction = new List <DataFuzzy>();
foreach (DataFuzzy dt_JlhData in f_jlhData)
{
foreach (DataFuzzy dt_jlhSource in f_jlhSource)
{
foreach (DataFuzzy dt_JlhLength in f_jlhLength)
{
DataFuzzy dataInference = InferenceProcess(dt_JlhData, dt_jlhSource, dt_JlhLength);
hasilConjunction.Add(dataInference);
}
}
}
//Disjunction (Max)
List <DataFuzzy> hasilDisjuntion = new List <DataFuzzy>();
DataFuzzy rendah = new DataFuzzy();
rendah.kategori = "Rendah";
rendah.nilai = hasilConjunction.Where(x => x.kategori.ToUpper() == rendah.kategori.ToUpper()).Select(y => y.nilai).ToList().Max();
hasilDisjuntion.Add(rendah);
DataFuzzy tinggi = new DataFuzzy();
tinggi.kategori = "Tinggi";
tinggi.nilai = hasilConjunction.Where(x => x.kategori.ToUpper() == tinggi.kategori.ToUpper()).Select(y => y.nilai).ToList().Max();
hasilDisjuntion.Add(tinggi);
#endregion
#region Defuzzifikasi : Weighted Average
foreach (DataFuzzy dataDefuzzy in hasilDisjuntion)
{
if (dataDefuzzy.kategori.ToUpper() == "Rendah".ToUpper())
{
nilaiPrediksi += dataDefuzzy.nilai * 0;
}
else if (dataDefuzzy.kategori.ToUpper() == "Tinggi".ToUpper())
{
nilaiPrediksi += dataDefuzzy.nilai * 1;
}
}
decimal totalValue = hasilDisjuntion.Select(x => x.nilai).Sum();
if (totalValue == 0)
{
nilaiPrediksi = 0;
}
else
{
nilaiPrediksi /= totalValue;
}
#endregion
return(nilaiPrediksi);
}
