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Witold Litwin
Researcher at Paris Dauphine University
Publications - 119
Citations - 5684
Witold Litwin is an academic researcher from Paris Dauphine University. The author has contributed to research in topics: Relational database & Hash function. The author has an hindex of 33, co-authored 117 publications receiving 5626 citations. Previous affiliations of Witold Litwin include University of Kentucky & French Institute for Research in Computer Science and Automation.
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Proceedings Article
Linear hashing: a new tool for file and table addressing
TL;DR: In this paper, a record in the file is, in general, found in one access, while the load may stay practically constant up to 90 %. No other algorithms attaining such a performance are known.
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Interoperability of multiple autonomous databases
TL;DR: It is argued for a new approach to solving data management system problems, called multidatabase or federated systems, which make databases interoperable, that is, usable without a globally integrated schema.
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Mariposa: a wide-area distributed database system
Michael Stonebraker,Paul M. Aoki,Witold Litwin,Avi Pfeffer,Adam Sah,Jeff Sidell,Carl Staelin,Andrew Yu +7 more
TL;DR: Mariposa as discussed by the authors is a distributed DBMS for wide-area networks, which uses an economic paradigm to solve the problems of cost-based optimizers in a WAN environment.
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The Pegasus heterogeneous multidatabase system
TL;DR: Data abstraction and encapsulation facilities in the Pegasus object model provide an extensible framework for dealing with various kinds of heterogeneities in the traditional database systems and nontraditional data sources.
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LH*—a scalable, distributed data structure
TL;DR: It is shown that LH* files can efficiently scale to files that are orders of magnitude larger in size than single-site files, and can be more efficient than any distributed file with a centralized directory, or a static parallel or distributed hash file.