public GenericItemSimilarity(ItemSimilarity otherSimilarity, DataModel dataModel, int maxToKeep)
{
this.similarityMaps = new FastByIDMap <FastByIDMap <double?> >();
this.similarItemIDsIndex = new FastByIDMap <FastIDSet>();
long[] itemIDs = GenericUserSimilarity.longIteratorToList(dataModel.getItemIDs());
DataModelSimilaritiesIterator allSimilarities = new DataModelSimilaritiesIterator(otherSimilarity, itemIDs);
this.initSimilarityMaps(TopItems.getTopItemItemSimilarities(maxToKeep, allSimilarities).GetEnumerator());
}
public GenericItemSimilarity(IEnumerable <ItemItemSimilarity> similarities, int maxToKeep)
{
this.similarityMaps = new FastByIDMap <FastByIDMap <double?> >();
this.similarItemIDsIndex = new FastByIDMap <FastIDSet>();
this.initSimilarityMaps(TopItems.getTopItemItemSimilarities(maxToKeep, similarities.GetEnumerator()).GetEnumerator());
}