Detection of Calendar-Based Periodicities of Interval-Based Temporal Patterns
Mala Dutta · International Journal of Data Mining & Knowledge Management Process · 2012
We present a novel technique to identify calendar-based (annual, monthly and daily) periodicities of an interval-based temporal pattern.An interval-based temporal pattern is a pattern that occurs across a time-interval, then disappears for some time, again recurs across another time-interval and so on and so forth.Given the sequence of time-intervals in which an interval-based temporal pattern has occurred, we propose a method for identifying the extent to which the pattern is periodic with respect to a calendar cycle.In comparison to previous work, our method is asymptotically faster.We also show an interesting relationship between periodicities across different levels of any hierarchical timestamp (year/month/day, hour/minute/second etc.).