/// <summary>
/// Obtain all the sliding window sub seqences given a time series and a length w
/// </summary>
/// <param name="TimeSeries"></param>
/// <param name="w"></param>
/// <returns></returns>
private List<SubTimeSeries> SlidingWindowSampling(SubTimeSeries TimeSeries, int w)
{
List<SubTimeSeries> SlidingTimeSeriesSet = new List<SubTimeSeries>();
for (int i = 0; i < TimeSeries.TimeSeries.Count; i++)
{
if (i + w < TimeSeries.TimeSeries.Count)
{
SubTimeSeries subSequence = new SubTimeSeries();
for (int j = 0; j < w; j++)
{
subSequence.TimeSeries.Add(TimeSeries.TimeSeries[i + j]);
}
subSequence.index = i + TimeSeries.index;
SlidingTimeSeriesSet.Add(subSequence);
}
}
return SlidingTimeSeriesSet;
}
/// <summary>
/// Samping the Noise Set
/// </summary>
/// <param name="TimeSeries"></param>
/// <param name="WMax"></param>
/// <param name="WMin"></param>
/// <returns></returns>
private List<SubTimeSeries> SamplingNoiseSet(List<double> TimeSeries, int WMax, int WMin)
{
List<SubTimeSeries> SubSet = new List<SubTimeSeries>();
Random rand = new Random();
SubTimeSeries SubSequence = new SubTimeSeries();
for (int i = 0; i < WMax; i++)
{
int index = rand.Next(TimeSeries.Count);
SubSequence.TimeSeries.Add(TimeSeries[index]);
}
List<SubTimeSeries> SlidingWindowSet = SlidingWindowSampling(SubSequence, WMin);
foreach (SubTimeSeries SlidingSeries in SlidingWindowSet)
{
SubSet.Add(SlidingSeries);
}
return SubSet;
}
/// <summary>
/// Sample one sub sequence give a length w
/// </summary>
/// <param name="TimeSeries"></param>
/// <param name="w"></param>
/// <returns></returns>
private SubTimeSeries SamplingSubSequence(List<double> TimeSeries, int w)
{
Random rand = new Random();
int index = rand.Next(TimeSeries.Count);
while (index + w - 1 >= 1000)
index = rand.Next(TimeSeries.Count);
SubTimeSeries SubSequence = new SubTimeSeries();
for (int i = index; i < index + w - 1; i++)
{
SubSequence.TimeSeries.Add(TimeSeries[i]);
}
SubSequence.index = index;
return SubSequence;
}
/// <summary>
/// A tool method used for insert sorting.
/// </summary>
/// <param name="CandidateSet"></param>
/// <param name="CandidateSequence"></param>
private void InsertInto(ref List<SubTimeSeries> CandidateSet, SubTimeSeries CandidateSequence)
{
for (int i =0; i < CandidateSet.Count; i++)
{
if (CandidateSequence.dist < CandidateSet[i].dist)
{
for (int j = CandidateSet.Count - 1; j > i; j--)
{
CandidateSet[j] = CandidateSet[j - 1];
}
CandidateSet[i] = CandidateSequence;
}
}
}
