internal PatternTree GetPatternAtDepth(string ptPreorderString, Depth depth)
{
if (DepthBasedFrequentPts.ContainsKey(depth) && DepthBasedFrequentPts[depth].ContainsKey(ptPreorderString))
{
return(DepthBasedFrequentPts[depth][ptPreorderString]);
}
return(null);
}
internal void SetDepth(Depth maxDepth)
{
MaxDepth = maxDepth;
for (var i = 0; i < MaxDepth; i++)
{
DepthBasedFrequentPts.Add(i, new Dictionary <string, PatternTree>());
}
}
internal PatternTree[] GetPotentialMaximalAtDepth(Depth depth)
{
if (DepthBasedFrequentPts.ContainsKey(depth))
{
return(DepthBasedFrequentPts[depth].Values.Where(pt => pt.HasSuperFrequentPattern == YesNoUnknown.Unknown).ToArray());
}
return(new PatternTree[] { });
}
internal PatternTree[] GetCombinableAtDepth(Depth depth)
{
var rDi = new List <PatternTree>();
if (DepthBasedFrequentPts.ContainsKey(depth))
{
rDi.AddRange(DepthBasedFrequentPts[depth].Values.Where(pt => pt.AbleToCombine && pt.SingleChild));
}
return(rDi.ToArray());
}
internal PatternTree[] GetClosedAndMaximalUnknownAtDepth(Depth depth)
{
if (DepthBasedFrequentPts.ContainsKey(depth))
{
return(DepthBasedFrequentPts[depth].Values.Where(
pt => pt.IsClosed == YesNoUnknown.Unknown ||
pt.IsMaximal == YesNoUnknown.Unknown).ToArray());
}
return(new PatternTree[] { });
}
/// <summary>
/// Get the set of frequent patterns, in which, everyone has at least one
/// occurrence at the specified depth.
/// </summary>
/// <param name="depth">Specified depth.</param>
/// <returns></returns>
internal List <PatternTree> GetToBeConnectedAtDepth(Depth depth)
{
var cDi = new List <PatternTree>();
if (DepthBasedFrequentPts.ContainsKey(depth))
{
cDi.AddRange(from v in DepthBasedFrequentPts[depth] where v.Value.AbleToBeConnected select v.Value);
}
return(cDi);
}
internal PatternTree[] GetToBeConnectableAtDepth(Depth depth)
{
var fDi = new List <PatternTree>();
if (DepthBasedFrequentPts.ContainsKey(depth))
{
fDi.AddRange(DepthBasedFrequentPts[depth].Values.Where(pt => pt.AbleToBeConnected));
}
return(fDi.ToArray());
}
/// <summary>
/// Get the set of frequent patterns, in which, everyone has at least one
/// occurrence at the specified depth.
/// </summary>
/// <param name="depth">Specified depth.</param>
/// <returns></returns>
internal List <PatternTree> GetFrequentsAtDepth(Depth depth)
{
var fDi = new List <PatternTree>();
if (DepthBasedFrequentPts.ContainsKey(depth))
{
fDi.AddRange(from fpt in DepthBasedFrequentPts[depth] select fpt.Value);
}
return(fDi);
}
/// <summary>
/// Get the set of frequent patterns, in which, everyone has at least one
/// occurrence at the specified depth and has fanout of 1.
/// </summary>
/// <param name="depth">Specified depth.</param>
/// <returns></returns>
internal List <PatternTree> GetFanout1FrequentsAtDepth(Depth depth)
{
var rDi = new List <PatternTree>();
if (DepthBasedFrequentPts.ContainsKey(depth))
{
rDi.AddRange(from fpt in DepthBasedFrequentPts[depth] where fpt.Value.SingleChild select fpt.Value);
}
return(rDi);
}
