public static double Distance(this Model model, string word1, string word2)
{
var vector1 = model.GetByWord(word1);
var vector2 = model.GetByWord(word2);
if (vector1 == null)
{
throw new ArgumentException(string.Format("cannot find word1 '{0}'", word1));
}
if (vector2 == null)
{
throw new ArgumentException(string.Format("cannot find word2 '{0}'", word2));
}
return(vector1.Vector.Distance(vector2.Vector));
}
public static IEnumerable <WordDistance> Nearest(this Model model, string word)
{
var vector = model.GetByWord(word);
if (vector == null)
{
throw new ArgumentException(string.Format("cannot find word '{0}'", word));
}
return(model.Vectors.Select(x => new WordDistance(x.Word, x.Vector.Distance(vector.Vector))).OrderBy(x => x.Distance).Where(x => x.Word != word));
}