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cs.DB2010
A New Framework for Join Product Skew
Foto Afrati, Victor Kyritsis, Paraskevas V. Lekeas +1
Different types of data skew can result in load imbalance in the context of parallel joins under the shared nothing architecture. We study one important type of skew, join product…
cs.DB2010★ 2 cited
Managing Semantic Loss during Query Reformulation in Peer Data Management Systems
Yannis Delveroudis, Paraskevas V. Lekeas
In this paper we deal with the notion of semantic loss in Peer Data Management Systems (PDMS) queries. We define such a notion and we give a mechanism that discovers semantic loss…