Temporal and spatio-temporal aggregations over data streams using multiple time granularities.

Donghui Zhang Dimitrios Gunopulos Vassilis J. Tsotras Bernhard Seeger Temporal and spatio-temporal aggregations over data streams using multiple time granularities. 61-84 2003 28 Inf. Syst. 1-2 http://dx.doi.org/10.1016/S0306-4379(02)00049-2 db/journals/is/is28.html#ZhangGTS03