/// <summary>
/// Converts sequence database to the vertical format.
/// </summary>
public VerticalSequenceDatabase ConvertToVerticalFormat(IDictionary <uint, int> frequentItems)
{
var verticalDb = new VerticalSequenceDatabase();
SeqBitmap seqBitmap;
foreach (Sequence seq in this)
{
foreach (var item in frequentItems)
{
if (!verticalDb.TryGetValue(item.Key, out seqBitmap))
{
seqBitmap = new SeqBitmap {
Support = item.Value
};
verticalDb.Add(item.Key, seqBitmap);
}
seqBitmap.AddSequence(seq.Size);
}
for (int tid = 0; tid < seq.Size; tid++)
{
foreach (uint item in seq[tid])
{
verticalDb[item].SetTransaction(tid);
}
}
}
return(verticalDb);
}
public SpamAlgorithm(VerticalSequenceDatabase sequenceDatabase, ILogger logger, IItemsManager itemsManager, IStop stopper)
: base(logger, itemsManager, stopper)
{
_sequenceDatabase = sequenceDatabase;
}
public LapinSpamAlgorithm(VerticalSequenceDatabase verticalSequenceDatabase, ILogger logger, IItemsManager itemsManager, IStop stopper)
: base(logger, itemsManager, stopper)
{
_sequenceSequenceDatabase = verticalSequenceDatabase;
}
