J
Joseph M. Hellerstein
Researcher at University of California, Berkeley
Publications - 313
Citations - 39413
Joseph M. Hellerstein is an academic researcher from University of California, Berkeley. The author has contributed to research in topics: Query optimization & Query language. The author has an hindex of 91, co-authored 300 publications receiving 37800 citations. Previous affiliations of Joseph M. Hellerstein include Carnegie Mellon University & IBM.
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Proceedings ArticleDOI
High-performance sorting on networks of workstations
Andrea C. Arpaci-Dusseau,Remzi H. Arpaci-Dusseau,David E. Culler,Joseph M. Hellerstein,David A. Patterson +4 more
TL;DR: The performance of NOW-Sort, a collection of sorting implementations on a Network of Workstations (NOW), finds that parallel sorting on a NOW is competitive to sorting on the large-scale SMPs that have traditionally held the performance records.
Journal ArticleDOI
Optimization techniques for queries with expensive methods
TL;DR: A query cost framework that incorporates both selectivity and cost estimates for selections is carefully defined, and an algorithm called Predicate Migration is developed, and it is proved that it produces optimal plans for queries with expensive methods.
Journal ArticleDOI
Static analysis techniques for predicting the behavior of active database rules
TL;DR: Methods for statically analyzing sets of active database rules to determine if the rules are guaranteed to terminate, guaranteed to produce a unique final database state, and guaranteed toproduce a unique stream of observable actions are given.
Proceedings ArticleDOI
On the analysis of indexing schemes
TL;DR: A framework for measuring the efficiency of an indexing scheme for a workload based on two characterizations: storage redundancy and access overhead is defined.
Proceedings ArticleDOI
FATE and DESTINI: a framework for cloud recovery testing
Haryadi S. Gunawi,Thanh Do,Pallavi Joshi,Peter Alvaro,Joseph M. Hellerstein,Andrea C. Arpaci-Dusseau,Remzi H. Arpaci-Dusseau,Koushik Sen,Dhruba Borthakur +8 more
TL;DR: A new testing framework for cloud recovery is proposed: FATE (Failure Testing Service) and DESTINI (Declarative Testing Specifications).