Ramani Duraiswami

Professor
3361 A.V. Williams Building
(301) 405-6710
Education: 
Ph.D., Johns Hopkins University (Mechanical Engineering)
Biography: 

Ramani Duraiswami is a professor in the Department of Computer Science.

He is the director of the Perceptual Interfaces and Reality Laboratory and has broad research interests in a number of areas, including scientific computing, spatial audio, and machine learning and computer vision.

Duraiswami's work in computer audition is inspired by the way humans effortlessly use spatial sound for making sense of the environment. The focus is on understanding the physical mechanisms, and providing machines with the same capabilities, and the use of computing, mathematical physics and experiments have characterized this work. In scientific computing, the focus is on solving very large problems using approximation algorithms and parallel computing. This work has been driven by applications in audio, speaker ID, computer vision, physics, and machine learning. A particular focus here has been in developing and improving algorithms based on the fast-multipole method, and in the use of heterogeneous multicore architectures to achieve orders of magnitude speed-ups.

Duraiswami received his doctorate in mechanical engineering from Johns Hopkins University in 1991.

Publications

2012

2011


Zhou X, Garcia-Romero D, Duraiswami R, Espy-Wilson C, Shamma S.  2011.  Linear versus Mel Frequency Cepstral Coefficients for Speaker Recognition. IEEE Automatic Speech Recognition and Understanding Workshop.

Srinivasan BV, Garcia-Romero D, Zotkin DN, Duraiswami R.  2011.  Kernel partial least squares for speaker recognition. Twelfth Annual Conference of the International Speech Communication Association.

Luo Y, Duraiswami R.  2011.  EFFICIENT PARALLEL NON-NEGATIVE LEAST SQUARES ON MULTI-CORE ARCHITECTURES. SIAM Journal on Scientific Computing. 33(5):2848-2863.

Hu Q, Syal M, Gumerov NA, Duraiswami R, Leishman JG.  2011.  Toward improved aeromechanics simulations using recent advancements in scientific computing. Proceedings 67th Annual Forum of the American Helicopter Society.
:3-5.

Hu Q, Gumerov NA, Duraiswami R.  2011.  Scalable fast multipole methods on distributed heterogeneous architectures. High Performance Computing, Networking, Storage and Analysis (SC), 2011 International Conference for.
:1-12.

Srinivasan B V, Duraiswami R.  2011.  Kernelized Renyi distance for subset selection and similarity scoring. Technical Reports of the Computer Science Department.

Srinivasan BV, Zotkin DN, Duraiswami R.  2011.  A partial least squares framework for speaker recognition. Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on.
:5276-5279.

2010


O'donovan A, Duraiswami R, Zotkin DN, Gumerov NA.  2010.  Audio visual scene analysis using spherical arrays and cameras.. The Journal of the Acoustical Society of America. 127(3):1979-1979.

Srinivasan B V, Schwartz W R, Duraiswami R, Davis LS.  2010.  Partial least squares on graphical processor for efficient pattern recognition. Technical Reports of the Computer Science Department.

Srinivasan B V, Duraiswami R.  2010.  Random sampling for estimating the performance of fast summations. Technical Reports of the Computer Science Department.

Vasan Srinivasan B, Duraiswami R, Zotkin DN.  2010.  Kernelized Rényi distance for speaker recognition. Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on.
:4506-4509.

O'Donovan AE, Duraiswami R, Zotkin DN.  2010.  Automatic matched filter recovery via the audio camera. Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on.
:2826-2829.

Zotkin DN, Duraiswami R.  2010.  Signal Processing for Audio HCI. Handbook of Signal Processing Systems.
:243-265.

Zhang W, Abhayapala TD, Kennedy RA, Duraiswami R.  2010.  Insights into head-related transfer function: Spatial dimensionality and continuous representation. The Journal of the Acoustical Society of America. 127(4):2347-2357.

Srinivasan BV, Hu Q, Duraiswami R.  2010.  GPUML: Graphical processors for speeding up kernel machines. Workshop on High Performance Analytics-Algorithms, Implementations, and Applications.

Srinivasan BV, Duraiswami R, Murtugudde R.  2010.  Efficient kriging for real-time spatio-temporal interpolation. Proceedings of the 20 th Conference on Probability and Statistics in the Atmospheric Sciences.
:228-235.

Srinivasan BV, Duraiswami R, Gumerov NA.  2010.  Fast matrix-vector product based fgmres for kernel machines. Copper Mountain Conference on Iterative Methods. 2

Raykar VC, Duraiswami R, Zhao LH.  2010.  Fast Computation of Kernel Estimators. Journal of Computational and Graphical Statistics. 19(1):205-220.

2009


Zotkin DN, Duraiswami R, Gumerov NA.  2009.  Regularized HRTF fitting using spherical harmonics. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2009. WASPAA '09.
:257-260.

Zotkin DN, Duraiswami R.  2009.  Plane-wave decomposition of a sound scene using a cylindrical microphone array. Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on.
:85-88.

Zhang W, Abhayapala TD, Kennedy RA, Duraiswami R.  2009.  Modal expansion of HRTFs: Continuous representation in frequency-range-angle. Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on.
:285-288.

Srinivasan BV, Duraiswami R.  2009.  Efficient subset selection via the kernelized Rényi distance. Computer Vision, 2009 IEEE 12th International Conference on.
:1081-1088.

O'donovan A, Duraiswami R, Gumerov NA, Zotkin DN.  2009.  Imaging room acoustics with the audio camera.. The Journal of the Acoustical Society of America. 125(4):2544-2544.

2008


Duraiswami R, Gumerov NA, O'Donovan A.  2008.  Spherical Arrays Near Boundaries. Hands-Free Speech Communication and Microphone Arrays, 2008. HSCMA 2008.
:1-1.

Kembhavi A, Farrell R, Luo Y, Jacobs DW, Duraiswami R, Davis LS.  2008.  Tracking Down Under: Following the Satin Bowerbird. Applications of Computer Vision, 2008. WACV 2008. IEEE Workshop on.
:1-7.

Memarsadeghi N, Raykar VC, Duraiswami R, Mount D.  2008.  Efficient Kriging via Fast Matrix-Vector Products. Aerospace Conference, 2008 IEEE.
:1-7.

Morariu V, Srinivasan BV, Raykar VC, Duraiswami R, Davis LS.  2008.  Automatic online tuning for fast Gaussian summation. Advances in Neural Information Processing Systems.

O'Donovan A, Duraiswami R, Zotkin DN.  2008.  Imaging concert hall acoustics using visual and audio cameras. IEEE International Conference on Acoustics, Speech and Signal Processing, 2008. ICASSP 2008.
:5284-5287.

Zotkin DN, Duraiswami R, Gumerov NA.  2008.  Sound field decomposition using spherical microphone arrays. IEEE International Conference on Acoustics, Speech and Signal Processing, 2008. ICASSP 2008.
:277-280.

Gumerov NA, Duraiswami R.  2008.  Fast multipole methods on graphics processors. Journal of Computational Physics. 227(18):8290-8313.

Raykar VC, Duraiswami R, Krishnapuram B.  2008.  A Fast Algorithm for Learning a Ranking Function from Large-Scale Data Sets. Pattern Analysis and Machine Intelligence, IEEE Transactions on. 30(7):1158-1170.

Luo Y, Duraiswami R.  2008.  Canny edge detection on NVIDIA CUDA. Computer Vision and Pattern Recognition Workshops, 2008. CVPRW '08. IEEE Computer Society Conference on.
:1-8.

Memarsadeghi N, Raykar VC, Duraiswami R, Mount D.  2008.  Efficient Kriging via Fast Matrix-Vector Products. Aerospace Conference, 2008 IEEE.
:1-7.

2007


Zotkin DN, Duraiswami R, Gumerov NA.  2007.  Efficient Conversion of X.Y Surround Sound Content to Binaural Head-Tracked Form for HRTF-Enabled Playback. IEEE International Conference on Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. 1:I-21-I-24-I-21-I-24.

Zotkin DN, Raykar VC, Duraiswami R, Davis LS.  2007.  Multimodal Tracking for Smart Videoconferencing and Video Surveillance. Computer Vision and Pattern Recognition, 2007. CVPR '07. IEEE Conference on.
:1-2.

O'donovan A, Duraiswami R, Gumerov NA.  2007.  Real Time Capture of Audio Images and their Use with Video. Applications of Signal Processing to Audio and Acoustics, 2007 IEEE Workshop on.
:10-13.

Li Z, Duraiswami R.  2007.  Fast Time-Domain Spherical Microphone Array Beamforming. Applications of Signal Processing to Audio and Acoustics, 2007 IEEE Workshop on.
:155-158.

Gumerov NA, Duraiswami R, Zotkin DN.  2007.  Fast Multipole Accelerated Boundary Elements for Numerical Computation of the Head Related Transfer Function. IEEE International Conference on Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. 1:I-165-I-168-I-165-I-168.

O'Donovan A, Duraiswami R, Neumann J.  2007.  Microphone Arrays as Generalized Cameras for Integrated Audio Visual Processing. Computer Vision and Pattern Recognition, 2007. CVPR '07. IEEE Conference on.
:1-8.

Li Z, Duraiswami R.  2007.  Flexible and Optimal Design of Spherical Microphone Arrays for Beamforming. Audio, Speech, and Language Processing, IEEE Transactions on. 15(2):702-714.

Duraiswami R, Zotkin DN, Gumerov NA.  2007.  Fast Evaluation of the Room Transfer Function Using Multipole Expansion. Audio, Speech, and Language Processing, IEEE Transactions on. 15(2):565-576.

Raykar VC, Duraiswami R, Krishnapuram B.  2007.  Fast weighted summation of erfc functions. Technical Reports from UMIACS UMIACS-TR-2007-03.

Raykar VC, Duraiswami R, Krishnapuram B.  2007.  A fast algorithm for learning large scale preference relations. Proceedings of the Eleventh International Conference on Artificial Intelligence and Statistics (AISTATS 2007). 2:388-395.

Raykar VC, Duraiswami R, Gumerov NA.  2007.  Fast computation of sums of Gaussians. Journal of Machine Learning Research (submitted). 4

Pages