Research: Data Engineering
My research work involves spatial data warehousing and OLAP, managing complex structured application-objects in databases and moving objects database implementation.
Major Projects:
iBLOB: We developed a novel way to store and efficiently query large, structured objects in databases using a concept called "Intelligent Binary Large Objects" or iBLOBs. Read our paper on iBLOBs here.
OIM: Our "Objects Interaction Matrix" (OIM) helps to capture the interaction of two complex spatial objects (points, lines, or regions) and helps to interpret and evaluate the cardinal direction relations between them. Read our paper on OIM here.
Read my papers on the "BigCube" approach to provide a unified, user-centric view for multidimensional (spatial) data in data warehouses here & here; get an introduction to "Cube Analysis Language" (CAL) here.
I am part of NASA's Advanced Information System Technologies (AIST) project on the development of Moving Objects Database (MOD) infrastructure to enable querying of dynamic atmospheric events for Earth science research. Read our reports on this here
& here (PDF),
and query tropical storm trajectories here.
Relevant Publications:
-
Cardinal Directions between Complex Regions
[pdf]
ACM Transactions on Database Systems (TODS), In Press, 2012
Markus Schneider, Tao Chen, Ganesh Viswanathan & Wenjie Yuan -
OLAP Formulations for Supporting Complex Spatial Objects in Data Warehouses
[pdf]
13th International Conference on Data Warehousing and Knowledge Discovery (DaWaK), Toulouse, France 2011
Ganesh Viswanathan & Markus Schneider -
CAL: A Generic Query and Analysis Language for Data Warehouses
[pdf]
20th Intl. Conference on Software Engineering and Data Engineering (SEDE), Las Vegas 2011
Ganesh Viswanathan & Markus Schneider -
A Moving Objects Database Infrastructure
for Hurricane Research:
Data Integration and Complex Object Management
[pdf]
NASA Earth Science Technology Forum (ESTF), Pasadena, CA 2011
Markus Schneider, Shen-Shyang Ho, Malvika Agarwal, Tao Chen, Hechen Liu, Ganesh Viswanathan -
User-Centric Spatial Data Warehousing: Requirements and Approaches. Submitted to Journal
Ganesh Viswanathan & Markus Schneider -
On the requirements for User-Centric Spatial Data Warehousing and SOLAP
[pdf]
1st Intl. Workshop on Spatial Information Modeling, Management and Mining (SIM3), DASFAA, Hong Kong 2011
Ganesh Viswanathan & Markus Schneider -
iBLOB: Complex Object Management in Databases Through Intelligent Binary Large Objects
[pdf]
3rd Intl. Conference on Objects and Databases (ICOODB), Frankfurt, Germany 2010
Tao Chen, Arif Khan, Markus Schneider & Ganesh Viswanathan -
The Objects Interaction Graticule for Cardinal Direction Querying in Moving Objects Data Warehouses
[pdf]
14th East-European Conference on Advances in Databases and Information Systems (ADBIS), Novi Sad 2010
Ganesh Viswanathan & Markus Schneider -
Moving Objects Database Technology for Ad-Hoc Querying and Satellite Data Retrieval of Dynamic Atmospheric Events
[pdf]
NASA Earth Science Technology Forum (ESTF), Arlington, VA 2010
Markus Schneider, Shen-Shyang Ho, Tao Chen, Arif Khan, Ganesh Viswanathan, Wenqing Tang & W. Timothy Liu -
BigCube: A Metamodel for Managing Multidimensional Data
[pdf]
19th Intl. Conference on Software Engineering and Data Engineering (SEDE), San Francisco 2010
Ganesh Viswanathan & Markus Schneider -
The Objects Interaction Matrix for Modeling Cardinal Directions in Spatial Databases
[pdf]
15th Intl. Conference on Database Systems for Advanced Applications (DASFAA), Tsukuba, Japan 2010
Tao Chen, Markus Schneider, Ganesh Viswanathan & Wenjie Yuan
Interesting articles:
http://www.daniel-lemire.com/OLAP/
Microsoft MDX Reference
Datawarehousing & Analytics @ IBM
Datawarehousing @ Oracle
