Vijayshankar Raman  Vijayshankar  Raman photo         

contact information

Principal RSM, Master Inventor. Compression, Query Processing, Query Optimization, Transaction Processing.
IBM-Research, Almaden Research Center, San Jose, CA, USA


Professional Associations

Professional Associations:  ACM

more information

More information:  List of Publications at DBLP


I work in the database group at IBM Almaden on high performance data management.

Currently I am looking at hybrid transaction and analytic processing (HTAP) on loosely-coupled ("AP") systems. Previously I started the Blink (now BLU) research project on query processing over compressed data, that has now been productized as DB2 with BLU Acceleration, and also the Informix Warehouse Accelerator. Long ago, I worked on adaptive and interactive query processing and on data cleansing.

Before joining IBM, I studied under Prof. Joseph M. Hellerstein at University of California, Berkeley for my Ph.D, and before that at IIT Madras.


WildFire paper 

WildFire slides