/// <summary>
/// Add an item to the estimator.
/// </summary>
/// <param name="item">The entity to add</param>
/// <remarks>based upon the strata, the value is either added to an IBF or to the b-bit minwise estimator.</remarks>
public void Add(TEntity item)
{
var idHash = _configuration.IdHash(_configuration.GetId(item));
var entityHash = _configuration.EntityHash(item);
if (!_strataEstimator.ConditionalAdd(idHash, entityHash))
{
if (_minwiseEstimator == null)
{
_minwiseReplacementCount++;
}
else
{
_minwiseEstimator.Add(new KeyValuePair <int, int>(idHash, entityHash));
}
}
}
