public static void Decode_ThreeStrings()
{
var input = new string[] { "a", "b","c" };
var coder = new NetworkOutputCoder(input);
var decoded = coder.Decode(new double[] { 0,1,0 });
Assert.True(decoded == "b");
}
public static void Encode_ThreeString()
{
var input = new string[] {"a", "b", "c"};
var coder = new NetworkOutputCoder(input);
var endcoded = coder.Encode("b");
Assert.True(endcoded.SequenceEqual(new double[]{0,1,0}));
}
public static void Decode_OneString()
{
var input = new string[] { "a" };
var coder = new NetworkOutputCoder(input);
var decoded = coder.Decode(new double[] {1});
Assert.True(decoded=="a");
}
public static WrappedKohonenNetwork Get(IEnumerable<TeachingSet> teachingSets)
{
var inputsCount = teachingSets.First().Inputs.First().Length;
var coder = new NetworkOutputCoder(teachingSets);
var network = KohonenNetworkFactory.Get(inputsCount , coder.CodingTableCount);
return new WrappedKohonenNetwork(network, coder);
}
private static void Teach(string teachingSamplesFolder, string fileToSaveNetwork, string fileToSaveCoder = null, double teachingSpeed = 0.5)
{
var teachingSets = (new FolderTeachingSetsLoader()).Load(teachingSamplesFolder);
var coder = new NetworkOutputCoder(teachingSets);
var samples = TeachingSamplesFactory.GetSamples(teachingSets, coder);
var network = KohonenNetworkFactory.Get(samples.First().Input.Length, coder.CodingTableCount);
var teacher = new KohonenNetworkTeacher(samples, teachingSpeed);
teacher.Teach(network);
(new KohonenNetworkSaver()).Save(fileToSaveNetwork, network);
if (fileToSaveCoder != null)
{
(new NetworkOutputCoderSaver()).Save(fileToSaveCoder, coder);
}
}
/// <summary>
///
/// </summary>
/// <param name="args">
/// 1: path to folder with teaching samples files
/// 2: teaching speed
/// 3: path to file to save network
/// </param>
static void Main(string[] args)
{
try
{
var teachingSets = (new FolderTeachingSetsLoader()).Load(args[0]);
var coder = new NetworkOutputCoder(teachingSets);
var samples = TeachingSamplesFactory.GetSamples(teachingSets, coder);
//TODO: var network = KohonenNetworkFactory.Get(coder.EncodedArrayLength, coder.CodingTableCount);
var teachingSpeed = double.Parse(args[1]);
var teacher = new KohonenNetworkTeacher(samples, teachingSpeed);
//teacher.Teach(network);
//(new KohonenNetworkSaver()).Save(args[2],network);
}
catch (Exception e)
{
Console.WriteLine("Exceptiond occured: \n"+ e.Message +"\n");
}
}
public static KohonenNetworkTeacher Get(IEnumerable<TeachingSet> set, NetworkOutputCoder coder, double teachingSpeed)
{
return new KohonenNetworkTeacher(TeachingSamplesFactory.GetSamples(set,coder), teachingSpeed);
}
public static void EmptyInput()
{
var input = new string[] {};
var coder = new NetworkOutputCoder(input);
}
public static IEnumerable<TeachingSample> GetSamples(IEnumerable<TeachingSet> set,
NetworkOutputCoder coder)
{
return set.SelectMany(x => x.Inputs.Select(y => new TeachingSample(y, coder.Encode(x.Output)))).Mix();
}