Milena Gateva Ivanova* In November 2005 I completed my Ph.D. studies at
Uppsala DataBase Laboratory, Department of
University, Sweden, under the supervision of Prof. Tore
I defended my thesis
"Scalable Scientific Stream Query Processing" on the 7th of
November 2005. My opponent was Prof. Elke Rundensteiner from the
Computer Science Department at Worcester Polytechnic Institute,
You can have a look at the thesis presentation
and how a public defence looks like in Sweden.
This page describes my work as a PhD student. Currently, I am a researcher at the Centre for Mathematics and Computer Science (CWI) in Amsterdam, The Netherlands.
Extensible Distributed Stream Data Management System for
This project is a part of
LOIS project in cooperation with Swedish Institute of Space
Physics. LOIS project is the LOFAR
Outrigger in Scandinavia. The purpose of LOFAR is to develop and
build distributed software space telescope and radar utilizing the
GRID. Extremely large raw data streams are produced by sensor networks
receiving signals from space. Various numerical selection and
transformation algorithms are applied on these streams before the
data to be delivered to the client workstations for visualization and
further analysis in form of streams with rates of several gigabits per
We are developing a prototype of an extensible stream
database manager system for scientific applications, called GSDM
(GRID Stream Data Manager).
Users analyze streams of numerical data to detect interesting events
by specifying high-level continuous queries containing
computationally expensive user-defined functions. The system provides
also tools for specification of user-defined stream partitioning
strategies to achieve scalable execution through partitioned
parallelism. The prototype is intended to utilize the evolving GRID
infrastructure for distributed computations on large data streams.
More details about the design, implementation and evaluation of GSDM system are presented in the thesis.
- Milena Ivanova and Tore Risch: . 31st International
Conference on Very Large Databases, VLDB2005, Trondheim, Norway,
- Milena Ivanova and Tore Risch: Customizable
Parallel Execution of Scientific Stream Queries, Technical Report
2005-012, Dept. of Information Technology, Uppsala University, ISSN
1404-3203, April, 2005. An early version of the VLDB paper above.
- M.G. Koparanova and T. Risch: High-performance
Stream-oriented GRID Database Manager for Scientific Data,
European Across Grids Conference, Universidad de
Compostela, Spain, Feb. 13-14, 2003.
M.Koparanova, and B.Thide: High-performance GRID
Database Manager for
Scientific Data, Workshop on Distributed
Data & Structures -
WDAS-2002, University Paris 9 Dauphine,
March 20-23, 2002
* Name change from Milena Koparanova to Milena
On VLDB Conference, Trondheim, 2005.
Last modified: Sun Sept 2006