Welcome to Dimitri Nion's homepage
 
 
  Contact Information

Dimitri Nion, Post-Doctoral Fellow,
K.U. Leuven University, Kortrijk Campus,
Etienne Sabbelaan 53,
8500 Kortrijk, Belgium

Office:   A372
Phone:  +32-56-24-60-92 (Office)
E-mail:  here

Research interests:  Blind Source Separation, Linear and Multilinear Algebra, Tensor Decompositions, Batch and Adaptive Signal Processing, Optimization,  Telecommunications (MIMO, DS-CDMA, Radars).


Publications

PhD. Thesis (in French)
D. Nion, Méthodes PARAFAC généralisées pour l'extraction aveugle de sources. Applications aux systèmes CDMA, Université de Cergy-Pontoise, october 2007. [pdf] [bibtex] [slides]
Journal Papers
[1] D. Nion and L. De Lathauwer,  An Enhanced Line Search Scheme for Complex-Valued Tensor Decompositions. Application in DS-CDMA, Elsevier Signal Processing, Vol. 88, Issue 3, pp. 749-755, March 2008. [pdf] [bibtex]

[2] L. De Lathauwer and D. Nion, Decompositions of a Higher-Order Tensor in Block Terms - Part III: Alternating Least Squares Algorithms, SIAM Journal on Matrix Analysis and Applications (SIMAX), Vol. 30, No. 3, pp. 1067-1083, Sept 2008. [pdf] [bibtex]     Companion papers: Part I [pdf] [bibtex] and Part II [pdf] [bibtex]

[3] D. Nion and L. De Lathauwer, A Block-Component Model Based Blind DS-CDMA Receiver, IEEE Trans. on Signal Processing, Vol. 56, No. 11, pp. 5567-5579, Nov. 2008. [pdf] [bibtex]

[4] D. Nion and N. D. Sidiropoulos, Adaptive Algorithms to Track the PARAFAC decomposition of a Third-Order Tensor, IEEE Trans. on Signal Processing, Vol. 57, No. 6, pp. 2299-2310, June 2009. [pdf] [bibtex]

[5] D. Nion, K. N. Mokios, N. D. Sidiropoulos and A. Potamianos, Batch and Adaptive PARAFAC-based Blind Separation of Convolutive Speech Mixtures, IEEE Trans. on Audio, Speech and Language Processing, 2010, to appear. [Audio Demo]

[6] D. Nion and N. D. Sidiropoulos, Tensor Algebra and Multi-dimensional Harmonic Retrieval in Signal Processing for MIMO Radar, IEEE Trans. on Signal Processing, under review.

International Conferences with Proceedings
[1] D. Nion and L. De Lathauwer,  A Block Factor Analysis based receiver for blind multi-user access in wireless communications, Proc. IEEE International Conference on Acoustics, Speech & Signal Processing (ICASSP), Toulouse, France, May 15-19, 2006. [pdf] [bibtex] [poster]

[2] D. Nion and L. De Lathauwer,  Line Search computation of the Block Factor Model for blind multi-user access in wireless communications, Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Cannes, France, July 2-5, 2006. [pdf] [bibtex] [poster]

[3] D. Nion and L. De Lathauwer,  Levenberg-Marquardt computation of the Block Factor Model for blind multi-user access in wireless communications, Proc. 14th European Signal Processing Conference (EUSIPCO), Florence, Italy, Sept. 4-8, 2006. [pdf] [bibtex] [slides]

[4] D. Nion and L. De Lathauwer,  A Tensor-Based Blind DS-CDMA Receiver Using Simultaneous Matrix Diagonalization, Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Helsinki, Finland, June 17-20, 2007. [pdf] [bibtex] [poster]

[5] D. Nion and L. De Lathauwer,  Blind Receivers based on Tensor Decompositions. Application in DS-CDMA and over-sampled systems, Proc. 41th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, November 4-7, 2007. [pdf] [bibtex] [slides]

[6] D. Nion and N. D. Sidiropoulos, A PARAFAC-Based Technique for Detection and Localization of Multiple Targets in a MIMO Radar System, Proc. IEEE International Conference on Acoustics, Speech & Signal Processing (ICASSP), pp. 2077-2080, Taipei, Taiwan, 2009. [pdf] [bibtex] [slides]

[7] D. Nion and L. De Lathauwer, A link between the decomposition of a third-order tensor in rank-(L,L,1) terms and joint block diagonalization, Proc. CAMSAP 2009, Aruba, Dutch Antilles, 2009. [pdf]

Invited talks - International conferences without proceedings
[1]  D. Nion and L. De Lathauwer, Generalized PARAFAC decompositions for blind multi-user access in wireless communications, Workshop on Tensor Decompositions and Applications (WTDA), Luminy, Marseille, France, Aug. 29th - Sept. 2nd, 2005.

[2] D. Nion, Tensor Decompositions: Models, Applications, Algorithms, Uniqueness, seminar, I3S Laboratory, Sophia-Antipolis, France, December 11th 2008. [slides]

[3] D. Nion and L. De Lathauwer, The Decomposition of a Third-Order Tensor in R Block-Terms of rank-(L,L,1): Model, Algorithms, Uniqueness, Estimation of R and L, Three-way methods in Chemistry and Psychology (TRICAP) meeting, Nurià, Spain, June 14th-19th, 2009. [slides]

[4] D. Nion and L. De Lathauwer, Block Component Decompositions of a Tensor: Definition, Computation and Uniqueness, SIAM annual meeting, Denver, Colorado, USA, July 6th-8th 2009.

[5] D. Nion and L. De Lathauwer, Decomposing a Third-Order Tensor in rank-(L,L,1) terms by Means of Simultaneous Matrix Diagonalization, SIAM Conference on Applied Linear Algebra, Monterey, California, USA, October 26th-29th, 2009. [slides]
National Conferences
[1] D. Nion and L. De Lathauwer, Séparation et Egalisation aveugles de signaux CDMA par la décomposition en blocs d'un tenseur au moyen de l'algorithme de Levenberg-Marquardt, XXIème colloque GRETSI, Troyes, France, September 11-14, 2007. [pdf]


       

Links
[1] PARAFAC. Tutorial and Applications. [here] or [here]. This tutorial is an excellent way to get familiar with the PARAFAC decomposition.

[2] Some useful Matlab code for PARAFAC, from KVL university website.  [here]

[3] The Three-Mode Company. A company devoted to creating three-mode software and promoting three-mode data analysis. [here]