S. Lakshmivarahan

Professor Emeritus

Email: varahan@ou.edu
Office: Devon Energy Hall Room 210

Website: cs.ou.edu/~shangqing

Education
Ph.D., Electrical Engineering
Indian Institute of Science
M.S.,Applied Electronics and Servos
indian Institute of Science
B.E., Electrical Technology
Indian Institute of Science
B.S., Physics
University of Madras

Research Focus

Computational Science, Computational Finance, Dynamic Data Assimilation, Data Mining, Interdependent Security Analysis and Parallel Processing.

Experience and Awards

George Lynn Cross Research Professor, University of Oklahoma
Associate Professor, University of Oklahoma
Visiting Assistant Professor, Brown University
Visiting Assistant Professor, Yale University
Assistant Professor, Indian Institute of Tehnology, Madras, India

Awards, Honors, and Professional Activities

Inducted into the Oklahoma Higher Education hall of Fame-2014
IEEE Life Fellow-2013
NAA best paper Award for the book on Dynamic Data Assimilation-2007
OU Alumni Teaching Award-2007, 2008
George Lynn Cross Research Professorship-1995; Fellow of ACM-1995; Fellow of IEEE-1993
OU Regents Award for Superior Teaching-1991
OU College of Engineering Distinguished Lecturer-1987-1992
OU Associate Distinguished Lecturer-1986-1987
Halliburton Distinguished Lecturer-1984-1986
OU Regents Award for Superior Accomplishment in Research and Creative Activities-1982

Biography

Dr. Lakshmivarahan (Varahan for short) joined the University of Oklahoma in the fall of 1978 where he is currently a George Lynn Cross Research Professor at the School of Computer Science. From 1973-1978 he held postdoctoral and faculty positions at Brown University, Yale University and Indian Institute of Technology, Madras, India. He obtained his PhD in 1973 from the Indian Institute of Science in Bangalore, India. He is the author/coauthor of 5 books, over 72 journal papers and over 110 papers at the international/ national conferences. He has supervised 22 PhD dissertations as the principal advisor and 6 PhD dissertations as co-principal advisor, and 39 MS theses as the principal advisor. He is Fellow of the IEEE and a Fellow of the ACM and has won numerous awards for both research and teaching. He has held short-term visiting appointments at leading academic centers in Canada, USA, Mexico, England, Germany, India, China and Taiwan.

Selected Projects

EPSCoR RII Track 2 Oklahoma-Kansas, “A Cyber Commons for Ecological Forecasting,” $300K, 2009- 2012.
NSF, “Real Time Data Mining of Integrated Weather Data,” with T. Trafalis, Mike Richman and A. White, $950K, 2002-2005.

Selected Publications

S. Lakshmivarahan, J. M. Lewis, and R. Jabrzemski (2016) Forecast Error Correction using Dynamic Data Assimilation, Springer, New York (Monograph)
S. Lakshmivarahan, L. Sivakumar and S. K. Dhall (2016)"Cayley Graphs" in the Handbook of Graph Theory, Combinatorial Optimization, and Algorithms, (Chapter 25)Edited by K. Thulasiraman, S. Arumugam, A. Brandstadt and T. Nishizeki, CRC Press, New York.
S. Lakshmivarahan (2016) "Convergence of a class of weak solutions to the strong solution of a linear equality constrained quadratic minimization problem: a direct proof using matrix identities, in Data Assimilation for Atmospheric, Oceanic and Hydrologic Applications, Vol II Edited by S. Park and L. Liang, Springer Verlag
Junjun Hu, S. Lakshmivarahan and J. M. Lewis (2016) "Quantification of uncertainty and data assimilation using Wiener's polynomial chaos expansion" in Data Assimilation for Atmospheric,Oceanic and Hydrologic Applications, VOL III, Edited by S. Park, and L. Liang, Springer Verlag
S. Qian, S. Lakshmivarahan and D. Stock (2016) A Structural Model for Optimal Selection of Maturity and Timing of Callable Bond Issuance: Help in Incorporating the Impact of Federal Reserve Policy and other Factors, Journal of Fixed Income (To appear)