Praveen Seshadri
Assistant Professor
praveen@cs.cornell.edu
http://www.cs.cornell.edu/home/praveen/praveen.html
PhD Univ. of Wisconsin, Madison, 1996
I am interested in investigating new directions in dbms
architectures. Four large research projects are being
explored by the Cornell Database Systems group.
The Cornell Predator project
(http://www.cs.cornell.edu/database/predator) has built a
full-fledged object-relational database system. The system
demonstrates the use of Enhanced Abstract Data Types |
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(E-ADTs), resulting in order-of-magnitude performance improvements. Many commercial database vendors
have added object support recently, and this research develops a
mechanism to make these systems efficient as well. The
codebase is freely available as a research vehicle and is
being widely used at other universities.
The Cornell Jaguar project (http://www.cs.cornell.edu/database/jaguar) is extending
Predator with mobile query processing. The motivation is to eliminate traditional
client-server barriers that are obstacles to
high-performance query processing. There are two
aspects to Jaguar: migrating client functionality to the
database server, and vice versa. We use Java to specify portable representations of query
components.
The COUGAR project (http://www.cs.cornell.edu/database/cougar) is the
Cornell University Gadget Archive. The motivation is
simple: "data moves and so should the database
engine". This project focuses on mobile devices and
gadgets and is developing a comprehensive
infrastructure in which millions of gadgets can be
organized into mobile databases.
QuO (http://www.cs.cornell.edu/database/quo): This
is a new project exploring non-traditional directions
in database query optimization. As an initial focus,
we are developing optimization techniques that
account for variations in run-time execution
environments.
Professional Activities
-
Program committee: VLDB Conference,
Edinburgh, Scotland, Sept. 1999; IEEE
Mobicom Workshop on Mobile Database
Systems, Seattle, WA, Aug 1999
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Panel chair: Panel on Mobile Databases at
ACM SIGMOD, Philadelphia, PA, June
1999
Lectures
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Enhancing Complex Data Types: Invited
Lecture. OCATE Seminar (OGI and PSU),
Portland, OR, March 1999.
Publications
- Client-site query extensions. Proc. ACM
SIGMOD (June 1999) (with S. Mayr).
- Least expected cost query optimization: An
exercise in utility. Proc. ACM PODS (June
1999) (with F. Chu and J. Halpern).
Software
- The Cornell Predator database system (http://www.cs.cornell.edu/database/predator)
The Cornell Jaguar project demonstration at
ACM SIGMOD, Philadelphia, PA, June
1999
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