public static class CumulativeTimeWord.IntersectionUnionReduce
Recieve every word-time either from the current time period or from past time periods.
Has this word appeared either in the past and now? intersection == 1
Has this word appeared both in the past and now? union == 1
emit the time period with the length of the union set, the length of the intersection set and the ratio of these two (The Jacard Index)
Sina Samangooei (email@example.com)
Nested Class Summary
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer