public byte[] Hash(string text)
{
var words = text.Split();
var result = new int[_byteCount * 8];
foreach (var grams in words.GetNGrams(_gramCount))
{
var gram = string.Join(' ', grams);
var hash = new BitArray(HashTools.GetByteHash(gram, _byteCount));
for (var i = 0; i < hash.Length; i++)
{
if (hash[i])
{
result[i]++;
}
else
{
result[i]--;
}
}
}
var bits = result
.Select(x => x > 0)
.ToArray();
var bytes = new byte[_byteCount];
new BitArray(bits).CopyTo(bytes, 0);
return(bytes);
}