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VARUN RATNAKAR
***** ******** **** *****, *** A129
Playa Vista, CA 90094
Email: ******@***.***
phone: 310-***-****
Summary of Skills
Operating Systems : Comprehensive knowledge of Linux, OS-X and Windows.
Programming Languages : Java, C/C++, Perl, Lisp, DHTML/Javascript.
Web Development : HTML, CSS, XML/XSLT, Javascript, SOAP/WSDL and Perl-CGI.
Semantic Web Development : RDF/RDFS, OWL, Protege, Jena
Professional Experience
Jan 2002-PresentResearch Programmer
Marina Del Rey, California 90292
Projects: Wings is a workflow system that assists scientists with the design of large-scale computational experiments. It reasons about dataset and component constraints to create and validate workflows and to generate metadata for new data products.: This project aims to assist users by mapping to-dos into capabilities of agents or services that could carry out the task that the user intends. As a part of this project, we have also created two Facebook ToDo-List applications to collect user data in a social environment.
Older Projects : Projects in which I am not actively involved due to their completion include,,,, (Perl-CGI), (Lisp/XSL), (XML/XSL) and (Perl-CGI, SOAP/WSDL).
of the IKCAP Group at ISI
PublicationsExpressive Reusable Workflow Templates, Yolanda Gil, Paul Groth, Varun Ratnakar, Christian Fritz. In To appear in Proceedings of the Fifth IEEE International Conference on e-Science, 2009Workflow Matching Using Semantic Metadata, Yolanda Gil, Jihie Kim, Yolanda Gil, Gonzalo Florez, Varun Ratnakar, Pedro A. Gonzalez Calero. In Proceedings of the Fifth International Conference on Knowledge Capture (K-CAP), 2009Automating To-Do Lists for Users: Interpretation of To-Dos for Selecting and Tasking Agents, Yolanda Vil, Varun Ratnakar. AAAI 2008: 765-771Provenance Trails in the Wings/Pegasus Workflow System, Jihie Kim, Ewa Deelman, Yolanda Gil, Gaurang Mehta, Varun Ratnakar. In Concurrency and Computation: Practice and Experience, Special Issue on the First Provenance Challenge, Vol 20, Issue 5, April 2008User Interfaces with Semi-Formal Representations: a Study of Designing Argumentation Structures, Timothy Chklovski, Varun Ratnakar, Yolanda Gil. In Proceedings of Conference on Intelligent User Interfaces (IUI05). 2005, San DiegoTrusting Information Sources One Citizen at a Time, Yolanda Gil, Varun Ratnakar. In Proceedings of the First International Semantic Web Conference (ISWC), Sardinia, Italy, June 2002 : 162-176Comparison of (Semantic) Markup Languages, Varun Ratnakar, Yolanda Gil. In Proceedings of the 15th International FLAIRS Conference, Special Track on Semantic Web, Pensacola, FL, May 2002.List of Publications @ DBLP
Professional Education
Aug 2000-Dec 2001Masters (M.S) in EE (Computer Networks)
Coursework
Computer Communications, Operating Systems, Advanced Operating Systems,
Queuing Theory, Real Time Computing Systems, Broadband Networks Architecture,
Computer Systems Architecture, Database Systems, Digital Image Processing.
GPA: 4.0
ProjectsDeveloped OS modules for Nachos, an Educational Operating system (C++)
Developed a DBMS from scratch (C++) for the Database Systems course
Real-Time scheduling Algorithms implementation (VC++)
Image Processing algorithms implementation (C++)
Aug 1995-Jun 1999Bachelors (B.E) in Electronics and Communications
Aggregate Score - 78.5%
ProjectsSpeech Quality Analyser using Neural networks (VC++)