P.-A. Absil

Professor
Department of Mathematical Engineering (INMA)
ICTEAM Institute & Louvain School of Engineering
University of Louvain

Publications, software, selected talks, and a picture are available.

Contact information

Access map

Mailing address:
PA Absil
Bâtiment Euler (P13)
Avenue Georges Lemaître 4 bte L4.05.01
1348 Louvain-la-Neuve
Belgium

Phone: +32 10 47 80 36 (department)
Fax: +32-10-472180
E-mail
URL:

Research groups

Biography

Short biography

Teaching

Research areas

Postdocs and long-term visitors

PhD students at UCLouvain

Selected talks

Publications

Book

AMS08 Optimization Algorithms on Matrix Manifolds
P.-A. Absil, R. Mahony, R. Sepulchre
Princeton University Press, 2008

Theses

Journal articles, technical reports, chapters in books, and recent conference papers

The list also includes selected publications where I am acknowledged. See the bottom of the page for conferences papers before 2013.

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Conference papers before 2013

  1. A multibody-based approach to the computation of spine intervertebral motions in scoliotic patients
    Gabriel Abedrabbo, Pierre-Antoine Absil, et al.
    DIAL entry: http://hdl.handle.net/2078.1/112454
    9th National Congress on Theoretical and Applied Mechanics, Brussels, 9-10-11 May 2012
  2. A multibody-based approach to the computation of spine intervertebral motions in scoliotic patients
    Gabriel Abedrabbo, Pierre-Antoine Absil, Philippe Mahaudens, et al
    DIAL entry: http://hdl.handle.net/2078.1/110092
    Second Joint International Conference on Multibody System Dynamics (ISMD2012), Stuttgart, Germany, 29 Mai - 01 June 2012. http://www.itm.uni-stuttgart.de/imsd2012
  3. Range-based non-orthogonal ICA using cross-entropy method
    S. Easter Selvan, A. Chattopadhyay, U. Amato, P.-A. Absil
    DIAL entry: http://hdl.handle.net/2078.1/107993
    Proceedings of the 20th European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning (ESANN 2012), Bruges, Belgium, 25-27 April 2012, pp. 519-524, 2012.
  4. RTRMC: A Riemannian trust-region method for low-rank matrix completion
    Nicolas Boumal, P.-A. Absil
    Technical report UCL-INMA-2011.010
    DIAL entry: http://hdl.handle.net/2078.1/87419
    Proceedings of the Twenty-Fifth Annual Conference on Neural Information Processing Systems (NIPS 2011), Grenada, Spain, 12-17 Dec 2011.
  5. A gradient method for geodesic data fitting on some symmetric Riemannian manifolds
    Quentin Rentmeesters
    DIAL entry: http://hdl.handle.net/2078.1/109182
    Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference (CDC-ECC), Orlando, Florida, 12-15 Dec 2011, pp. 7141 - 7146, 2011. doi:10.1109/CDC.2011.6161280
  6. Community Detection for Hierarchical Image Segmentation
    Arnaud Browet, P.-A. Absil, Paul Van Dooren
    Technical report UCL-INMA-2010.062
    DIAL entry: http://hdl.handle.net/2078.1/80542
    Combinatorial Image Analysis, Lecture Notes in Computer Science, 2011, Volume 6636/2011, 358-371. doi:10.1007/978-3-642-21073-0_32
  7. Algorithm comparison for Karcher mean computation of rotation matrices and diffusion tensors
    Quentin Rentmeesters, P.-A. Absil
    Technical report UCL-INMA-2011.007
    DIAL entry: http://hdl.handle.net/2078.1/93582
    Proceedings of the 19th European Signal Processing Conference (EUSIPCO 2011), Barcelona, Spain, August 29 - September 2, 2011, pp. 2229-2233, 2011.
  8. Discrete regression methods on the cone of positive-definite matrices
    Nicolas Boumal, P.-A. Absil
    Technical report UCL-INMA-2010.060
    DIAL entry: http://hdl.handle.net/2078.1/90662
    Proceedings of the 36th International Conference on Acoustics, Speech and Signal Processing, ICASSP 2011. doi:10.1109/ICASSP.2011.5947287
  9. A discrete regression method on manifolds and its application to data on SO(n)
    Nicolas Boumal, P.-A. Absil
    Technical report UCL-INMA-2010.059
    DIAL entry: http://hdl.handle.net/2078.1/91643
    IFAC World Congress 2011. doi:10.3182/20110828-6-IT-1002.00542
  10. Information inequality for estimation of transfer functions: main results
    Tzvetan Ivanov, Brian D.O. Anderson, P.-A. Absil, Michel Gevers
    Technical report UCL-INMA-2010.058
    DIAL entry: http://hdl.handle.net/2078.1/91834
    IFAC World Congress 2011. doi:10.3182/20110828-6-IT-1002.00806
  11. An Efficient BFGS Algorithm for Riemannian Optimization
    Chunhong Qi, Kyle A. Gallivan, P.-A. Absil
    Technical report UCL-INMA-2010.055
    DIAL entry: http://hdl.handle.net/2078.1/91850
    Proceedings of the 19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010), July 5-9, 2010, Budapest, Hungary, pp. 2221-2227, 2010.
  12. A filtering technique on the Grassmann manifold
    Quentin Rentmeesters, P.-A. Absil, Paul Van Dooren
    Technical report UCL-INMA-2010.035
    DIAL entry: http://hdl.handle.net/2078.1/80546 (pending: affiliations)
    19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010), July 5-9, 2010, Budapest, Hungary, pp. 2427-2430, 2010.
  13. A Unified Framework for Affine Graph Similarity
    T. P. Cason, P.-A. Absil, P. Van Dooren
    Technical report UCL-INMA-2010.036
    DIAL entry: http://hdl.handle.net/2078.1/80544 (pending: affiliations)
    19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010), July 5-9, 2010, Budapest, Hungary, pp. 125-129, 2010.
  14. The Information Inequality on Function Spaces given a Singular Information Matrix
    Tzvetan Ivanov, Brian D.O. Anderson, P.-A. Absil, Michel Gevers
    Technical report UCL-INMA-2010.081
    DIAL entry: http://hdl.handle.net/2078.1/77987 (pending: get full access)
    19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010), July 5-9, 2010, Budapest, Hungary, pp. 43-50, 2010.
  15. Local minima of the best low multilinear rank approximation of tensors
    M. Ishteva, P.-A. Absil, S. Van Huffel, L. De Lathauwer
    Technical report UCL-INMA-2010.028
    DIAL entry: http://hdl.handle.net/2078.1/91866
    19th International Symposium on Mathematical Theory of Networks and Systems (MTNS 2010), July 5-9, 2010, Budapest, Hungary, pp. 2145-2146, 2010.
  16. Géométrie des matrices positives semi-définies de rang fixé : un peu de théorie et beaucoup d'applications
    Rodolphe Sepulchre, Pierre-Antoine Absil, Silvère Bonnabel
    Technical report UCL-INMA-2010.032
    DIAL entry: http://hdl.handle.net/2078.1/91867
    Sixième Conférence Internationale Francophone d'Automatique (CIFA 2010), Nancy, France, 2-4 juin 2010
  17. A Modified Particle Swarm Optimization Algorithm for the Best Low Multilinear Rank Approximation of Higher-Order Tensors
    Pierre B. Borckmans, Mariya Ishteva, P.-A. Absil
    Technical report UCL-INMA-2010.013
    DIAL entry: http://hdl.handle.net/2078.1/91868
    Lecture Notes in Computer Science, Volume 6234/2010, pp. 13-23, 2010. doi:10.1007/978-3-642-15461-4_2
  18. Fast Oriented Bounding Box Computation Using Particle Swarm Optimization
    Pierre B. Borckmans, P.-A. Absil
    Technical report UCL-INMA-2010.020
    DIAL entry: http://hdl.handle.net/2078.1/91872
    Proceedings of the 18th European Symposium on Artificial Neural Networks (ESANN), 2010
  19. An efficient particle filtering technique on the Grassmann manifold
    Quentin Rentmeesters, P.-A. Absil, Paul Van Dooren, Kyle Gallivan, Anuj Srivastava
    Technical report UCL-INMA-2009.066
    DIAL entry: http://hdl.handle.net/2078.1/67329
    Proceedings of the 35th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2010), pp. 3838-3841, 2010. doi:10.1109/ICASSP.2010.5495828
  20. Elastic morphing of 2D and 3D objects on a shape manifold
    C. Samir, P. Van Dooren, D. Laurent, K. A. Gallivan, P.-A. Absil
    Technical report UCL-INMA-2008.228
    DIAL entry: http://hdl.handle.net/2078.1/80562
    Proceedings of the 6th International Conference, ICIAR 2009, Halifax, Canada, July 6-8, 2009
    Lecture Notes in Computer Science, Volume 5627/2009, pp. 563-572, 2009. doi:10.1007/978-3-642-02611-9_56
  21. Iterative Methods for Low Rank Approximation of Graph Similarity Matrices
    T. P. Cason, P.-A. Absil, P. Van Dooren
    Technical report UCL-INMA-2009.087
    DIAL entry: http://hdl.handle.net/2078.1/80558
    7th International Workshop on Mining and Learning with Graphs, Leuven, Belgium, July 2-4, 2009
  22. Fitting Curves on Riemannian Manifolds Using Energy Minimization
    Chafik Samir, P.-A. Absil, Anuj Srivastava, Eric Klassen
    Technical report UCL-INMA-2009.025
    DIAL entry: http://hdl.handle.net/2078.1/104410
    MVA2009 IAPR Conference on Machine Vision Applications, May 20-22, 2009, Yokohama, Japan
    See full paper
  23. Embedded geometry of the set of symmetric positive semidefinite matrices of fixed rank
    Bart Vandereycken, P.-A. Absil, Stefan Vandewalle
    Technical report UCL-INMA-2009.014
    DIAL entry: http://hdl.handle.net/2078.1/104411
    Proceeding of the 15th Workshop on Statistical Signal Processing (SSP '09), pp. 389-392, 2009. doi:10.1109/SSP.2009.5278558
  24. Gene expression data analysis using spatiotemporal blind source separation
    Matthieu Sainlez, P.-A. Absil, Andrew E. Teschendorff
    Technical report UCL-INMA-2008.171
    DIAL entry: http://hdl.handle.net/2078.1/104412
    Proceedings of the 17th European Symposium on Artificial Neural Networks (ESANN), pp. 159-164, 2009.
  25. Soft dimension reduction for ICA by joint diagonalization on the Stiefel manifold
    Fabian J. Theis, Thomas P. Cason, P.-A. Absil
    Technical report UCL-INMA-2008.155
    DIAL entry: http://hdl.handle.net/2078.1/104413
    8th International Conference, ICA 2009, Paraty, Brazil, 15-18 Dec 2009
    Independent Component Analysis and Signal Separation, Lecture Notes in Computer Science, 5441, pp. 354-361, 2009.
  26. Using H2 norm to bound H-infinity norm from above on Real Rational Modules
    Tzvetan Ivanov, Brian D. O. Anderson, P.-A. Absil, Michel Gevers
    Technical report UCL-INMA-2009.031
    DIAL entry: http://hdl.handle.net/2078.1/104414
    Proceedings of the European Control Conference 2009, pp. 2259-2264, 2009.
  27. The best rank-(R1,R2,R3) approximation of tensors by means of a geometric Newton method
    Mariya Ishteva, Lieven De Lathauwer, P.-A. Absil, Sabine Van Huffel
    Technical report UCL-INMA-2008.075
    DIAL entry: http://hdl.handle.net/2078.1/104415
    Internal Report 08-115, ESAT-SISTA, K.U.Leuven (Leuven, Belgium), 2008
    Proceedings of Sixth (6th) International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2008).
  28. Application of real rational modules in system identification
    T. Ivanov, P.-A. Absil, B. D. O. Anderson, M. Gevers
    Technical report UCL-INMA-2008.026
    DIAL entry: http://hdl.handle.net/2078.1/67692
    Proceedings of the 47th IEEE Conference on Decision and Control (CDC 2008), pp. 111-116, 2008
  29. Design of continuous-time flows on intertwined orbit spaces
    P.-A. Absil, C. Lageman, J. H. Manton
    DIAL entry: ttp://hdl.handle.net/2078.1/104417
    Proceedings of the 46th IEEE Conference on Decision and Control (CDC 2007), pp. 6244-6249, 2007.
  30. Optimization on the Orthogonal Group for Independent Component Analysis
    Michel Journée, Pierre-Antoine Absil, Rodolphe Sepulchre
    Technical report UCL-INMA-2007.058
    DIAL entry: http://hdl.handle.net/2078.1/104420
    Independent Component Analysis and Signal Separation
    7th International Conference, ICA 2007, London, UK, September 9-12, 2007. Proceedings
    Lecture Notes in Computer Science, 4666, pp. 57-64, 2007.
  31. Geometric optimization methods for independent component analysis applied on gene expression data
    M. Journée, A. E. Teschendorff, P.-A. Absil, R. Sepulchre
    Technical report UCL-INMA-2008.076
    DIAL entry: http://hdl.handle.net/2078.1/104421
    Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, 2007 (ICASSP 2007), pp. IV 1413-1416, 2007. doi:10.1109/ICASSP.2007.367344
  32. An implicit Riemannian trust-region method for the symmetric generalized eigenproblem
    C. G. Baker, P.-A. Absil, K. A. Gallivan
    Technical report UCL-INMA-2005.159
    DIAL entry: http://hdl.handle.net/2078.1/59994
    Computational Science -- ICCS 2006 -- 6th International Conference, Reading, UK, May 28-31, 2006, Proceedings, Part I
    Lecture Notes in Computer Science, 3991, pp. 210-217, 29 April 2006.
  33. Joint diagonalization on the oblique manifold for independent component analysis
    P.-A. Absil, K. A. Gallivan
    Technical report UCL-INMA-2005.139
    DIAL entry: http://hdl.handle.net/2078.1/104425
    Proceedings of the 2006 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2006), pp. V-945 - V-948, May 2006. doi:10.1109/ICASSP.2006.1661433
  34. Adaptive model trust region methods for generalized eigenvalue problems
    P.-A. Absil, C. G. Baker, K. A. Gallivan, A. Sameh
    DIAL entry: http://hdl.handle.net/2078.1/104428
    Computational Science -- ICCS 2005 -- 5th International Conference, Atlanta, GA, USA, May 22-25, 2005. Proceedings, Part I
    Lecture Notes in Computer Science, 3514, pp. 33-41, 20 April 2005.
  35. Trust-region methods on Riemannian manifolds with applications in numerical linear algebra
    P.-A. Absil, C. G. Baker, K. A. Gallivan
    Proceedings of the Sixteenth International Symposium on Mathematical Theory of Networks and Systems (MTNS), Katholieke Universiteit Leuven, Belgium (2004).
  36. Continuous-time flows on quotient spaces for principal component analysis
    P.-A. Absil
    Proceedings of the Sixteenth International Symposium on Mathematical Theory of Networks and Systems (MTNS), Katholieke Universiteit Leuven, Belgium (2004).
  37. Generalized shifted inverse iterations on Grassmann manifolds
    J. Jordan, P.-A. Absil, R. Sepulchre
    Proceedings of the Sixteenth International Symposium on Mathematical Theory of Networks and Systems (MTNS), Katholieke Universiteit Leuven, Belgium (2004).
  38. A Newton algorithm for invariant subspace computation with large basins of attraction
    P.-A. Absil, R. Sepulchre, P. Van Dooren and R. Mahony
    Proceedings of the 42nd IEEE Conference on Decision and Control, December 9-12, 2003, Hyatt Regency Maui, Hawaii, USA, pp. 2352-2357, December 2003.
  39. The continuous-time Rayleigh quotient flow on the Grassmann manifold
    P.-A. Absil, R. Mahony, R. Sepulchre.
    Proceedings of MTNS, University of Notre Dame, August 12-16 (2002)
  40. A Grassmann-Rayleigh quotient iteration for computing invariant subspaces
    P.-A. Absil, R. Mahony, R. Sepulchre, P. Van Dooren
    Proceedings of the 39th IEEE Conference on Decision and Control (CDC), Sydney (2000).
  41. A hybrid control scheme for swing-up acrobatics
    P.-A. Absil, R. Sepulchre
    Proceedings of the European Conference on Control ECC 2001, Porto, Portugal, September 4-7 (2001).
  42. Gradient flows for discrete optimization on the hypercube
    P.-A. Absil, R. Sepulchre
    Fourteenth International Symposium on Mathematical Theory of Networks and Systems (MTNS), 2000.
  43. Sleep apnea syndrome diagnosis by analysis of the cardiac interbeat RR time series
    P.-A. Absil, R. Sepulchre, A. Bilge, R. Poirrier.
    Proceedings of the International Workshop on Advanced Black-Box Techniques for Nonlinear Modeling, Katholieke Universiteit Leuven, Belgium (1998).

Selected abstracts

  1. Primal-dual interior-point algorithms for linear programs with many inequality constraints
    Luke B. Winternitz, P.-A. Absil
    Technical report UCL-INMA-2010.056
    DIAL entry: http://hdl.handle.net/2078.1/91877
    Book of abstracts of the 2nd IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham, 13-15 September 2010.
  2. Review of Similarity Matrices and Application to Subgraph Matching
    T. P. Cason, P.-A. Absil, P. Van Dooren
    Technical report UCL-INMA-2010.017
    DIAL entry: http://hdl.handle.net/2078.1/91878
    Hans Stigter and Gjerrit Meinsma (eds.), Book of Abstracts of the 29th Benelux Meeting on Systems and Control, Heeze, The Netherlands, ISBN 970-90-8585-672-6, 2010, p 109
  3. Image segmentation and real-time video tracking using graph based techniques
    Arnaud Browet, Paul Van Dooren, P.-A. Absil
    Technical report UCL-INMA-10.018
    DIAL entry: http://hdl.handle.net/2078.1/91879
    Benelux Meeting 2010, p 101
  4. The Information Inequality on Function Spaces
    Tzvetan Ivanov, Michel Gevers, P.-A. Absil, Brian D.O. Anderson
    DIAL entry: http://hdl.handle.net/2078.1/91880
    Benelux Meeting 2010, p 52
  5. Fast Oriented Bounding Box Computation Using Particle Swarm Optimization
    P. Borckmans, P.-A. Absil
    DIAL entry: http://hdl.handle.net/2078.1/91881
    Benelux Meeting 2010, p 34
  6. Tensor- versus matrix-based algorithms in exponential data fitting
    Mariya Ishteva, P.-A. Absil, Sabine Van Huffel, Lieven De Lathauwer
    Technical report UCL-INMA-2010.021
    DIAL entry: http://hdl.handle.net/2078.1/91882
    Benelux Meeting 2010, p 37
  7. A filtering technique on the Grassmann manifold
    Q. Rentmeesters, P.-A. Absil, P. Van Dooren
    Technical report UCL-INMA-2010.022
    DIAL entry: http://hdl.handle.net/2078.1/91883
    Benelux Meeting 2010, p 178
  8. Optimization on manifolds: methods and applications
    P.-A. Absil
    DIAL entry: http://hdl.handle.net/2078.1/105793
    J. De Schutter, M. Diehl, F. Glineur, E. Jarlebring, Q. Louveaux, W. Michiels, I. Smets, J. Suykens, J. Swevers, J. Vandewalle, J. Van Impe, M. Verschuure (eds.), Book of Abstracts of the 14th Belgian-French-German Conference on Optimization (BFG'09), Leuven, ISBN 9789073802001, 2009, p 51
  9. Fitting smooth curves on a Riemannian manifold
    C. Samir, P.-A. Absil, A. Srivastava, E. Klassen
    Technical report UCL-INMA-2009.083
    DIAL entry: http://hdl.handle.net/2078.1/104429
    BFG'09, p 55
  10. The Riemannian BFGS algorithm with applications Chunhong Qi, K. A. Gallivan, P.-A. Absil
    Technical report UCL-INMA-2009.084
    DIAL entry: http://hdl.handle.net/2078.1/104430
    BFG'09, p 57
  11. Optimization on low-rank positive semidefinite matrices
    M. Journée, F. Bach, P.-A. Absil, R. Sepulchre
    Technical report UCL-INMA-2009.085
    DIAL entry: http://hdl.handle.net/2078.1/104431
    BFG'09, p 71
  12. Identification method for time-varying ARX models
    Q. Rentmeesters, P.-A. Absil, P. Van Dooren
    Technical report UCL-INMA-2009.086
    DIAL entry: http://hdl.handle.net/2078.1/80555 (correction to do: abstract only)
    BFG'09, p 114

Software