Julie Letchner Christopher Ré Magdalena Balazinska Matthai Philipose Lahar Demonstration: Warehousing Markovian Streams. 1610-1613 2009 2 PVLDB 2 http://www.vldb.org/pvldb/2/vldb09-62.pdf db/journals/pvldb/pvldb2.html#LetchnerRBP09