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My research work is at the intersection of the broad topics -
Medical Informatics, Data mining, Data Warehousing, Privacy.
Description:
My research started with work on an analytical platform for cancer
informatics as part of
PCABC (Pennsylvania Cancer Alliance for Bioinformatics
Consortium). The system serves as an information-fusion based data
analysis and information visualization platform through a suite of
tools.
- Information Fusion based Data Mining : Implemented a
clustering algorithm that uses multiple information sources
simultaneously to cluster data. The method provides better
clustering results than when compared to traditional clustering
algorithms using one information source at a time.
- Information Visualization : Implemented a multidimensional
cube based information retrieval and visualization system to
enable data exploration. The method allows users to query the data
warehouse based on the multidimensional data model and visualize
the results with respect to information-of-interest.
The initial stage of this work is reported in [8] and
was later extended and reported in [7] and [6]. A comprehensive and
more technical version of this is to be submitted under review for
the Journal of American Medical Informatics (JAMIA) as in [4].
I
have also recently worked on addressing data privacy problems. More
specifically, I concentrate on Healthcare privacy.
- A large section of current anonymization schemes are
vulnerable when an adversary uses auxiliary information to
inflict a privacy breach. Auxiliary information can be gathered
from multiple sources, including 1. Explicit identifying
information present in the anonymized data 2. Independent
anonymized releases from other sources. My recent work [1,2]
shed light on the shortcomings of existing schemes in view of
such auxiliary information and discuss alternative solutions.
- My proposal on privacy policy enforcement in distributed
healthcare setting was accepted for MEDINFO 2007 [3].
My advisors are
My thesis committee members are
-
Ganapati Patil (Distinguished Prof, Dept of Statistics, Penn
State University)
- Robert Collins
(Assoc Prof, Dept of CSE, Penn State University)
Selected publications:
Refereed Conferences/Journals:
Srivatsava Ranjit Ganta, Shiva Kasiviswanathan, Adam Smith, "Composition
Attacks and Auxiliary Information in Data Privacy", In the
proceedings of ACM International Conference on Knowledge Discovery and Data
Mining (SIG-KDD) 2008 (PDF).
Srivatsava Ranjit Ganta,
Raj Acharya, "On Breaching Enterprise Data Privacy Through
Adversarial Information Fusion", In the Workshop
Proceedings of International Conference for Data Engineering (ICDE)
2008 (PDF).
Tyrone Grandison, Srivatsava Ranjit Ganta, Uri Braun, James Kaufman, "Protecting Privacy while Sharing Medical Data Between Regional Healthcare Entities", MEDINFO, Brisbane, 2007 (PDF)
Srivatsava Ranjit Ganta, Jyotsna Kasturi, Raj Acharya, "Fusion
based Analytical
and Visualization Techniques for Bio-medical Informatics", To be submitted to
Journal of American Medical Informatics (JAMIA)
(A Tech Report from which this submission is developed
PDF).
Srivatsava Ranjit Ganta, Eishay Smith, Sarah
Knoop, Sondra Renly, James Kaufman, "The Eclipse Open Health Framework", In
the Proceedings of International Conference for Healthcare
Technology, Chicago 2006. (PDF)
Srivatsava Ranjit Ganta, Anand Sivasubramaniam, Raj Acharya, "A Prototype System for Grid-Based Cancer Biomedical Informatics", In the Proceedings of 1st IEEE Conference on e-science and Grid Computing, 2005.
(PDF)
Srivatsava Ranjit Ganta, Jyotsna Kasturi, Anand Narasimhamurthy, Raj Acharya, "FUZEBASE: A Datawarehouse for Analysis and Information Fusion for Prostate Cancer Data", In the Proceedings of the Intelligent Systems for Molecular Biology ISMB, 2005.
Srivatsava Ranjit Ganta, Jyotsna Kasturi, John Gilbertson, Raj Acharya, "An Online Analysis and Information Fusion Platform for Heterogeneous Biomedical Informatics Data", In the Proceedings of IEEE Conference for Computer Based Medical Systems CBMS, 2005.
(PDF)
Book Chapters:
1. Srivatsava Ranjit Ganta, Jyotsna Kasturi, Anand Narasimhamurthy,
Raj Acharya, "An Exploratory Analysis and Information Fusion
Platform for Biomedical Informatics", Machine Learning in
Bioinformatics, John Wiley and Sons, 2007
Miscellaneous:
1. A Completely Native XML Database Management System - An Undergraduate Thesis, Indian Institute of Technology, Madras, India 2002.
Industrial Research Experience:
1. IBM Almaden Research Center, May'07-Aug'07, Healthcare
Informatics Research Group. Mentor: James Kaufman
2.
IBM Almaden Research Center, May'06-Aug'06, Healthcare Informatics
Research Group. Mentor: James Kaufman
News Articles:
1. http://www.svcn.com/archives/almadenresident/20060608/index.shtml
2. http://www.engr.psu.edu/newsevents/EPS/v22n2_2006spring/cancer.htm
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