Computer Science

Title	Computer Science
Alternative	S&T - CS
Faculty	Faculty of Science and Technology

Latest research outputs

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3D CBIR with sparse coding for image-guided neurosurgery

Qian, Y., Hui, R. and Gao, X. 2013. 3D CBIR with sparse coding for image-guided neurosurgery. Signal Processing. 93 (6), pp. 1673-1683. https://doi.org/10.1016/j.sigpro.2012.10.020

Article

Optimal measures and Markov transition kernels

Belavkin, R. 2013. Optimal measures and Markov transition kernels. Journal of Global Optimization. 55 (2), pp. 387-416. https://doi.org/10.1007/s10898-012-9851-1

Article

Three tools for the real-time simulation of embodied spiking neural networks using GPUs

Fidjeland, A., Gamez, D., Shanahan, M. and Lazdins, E. 2013. Three tools for the real-time simulation of embodied spiking neural networks using GPUs. Neuroinformatics. 11 (3), pp. 267-290. https://doi.org/10.1007/s12021-012-9174-x

Article

The eNTERFACE'05 audio-visual emotion database

Martin, O., Kotsia, I., Macq, B. and Pitas, I. 2006. The eNTERFACE'05 audio-visual emotion database. 22nd International Conference on Data Engineering Workshops (ICDEW 2006). Atlanta, USA 03 - 07 Apr 2006

Conference paper

Facial expression recognition using shape and texture information

Kotsia, I. and Pitas, I. 2006. Facial expression recognition using shape and texture information. IFIP TC12 and WG12.5: Conference and Symposium on Artificial Intelligence. Santiago, Chile 21 - 24 Aug 2006

Conference paper

Fusion of geometrical and texture information for facial expression recognition

Kotsia, I., Nikolaidis, N. and Pitas, I. 2006. Fusion of geometrical and texture information for facial expression recognition. IEEE International Conference on Image Processing (ICIP 2006). Atlanta, USA 08 - 11 Oct 2006

Conference paper

Affective gaming: beyond using sensors

Kotsia, I., Patras, I. and Fotopoulos, S. 2012. Affective gaming: beyond using sensors. 5th International Symposium on Communications Control and Signal Processing (ISCCSP 2012). Rome, Italy 02 - 04 May 2012

Conference paper

Higher rank support tensor machines

Kotsia, I., Guo, W. and Patras, I. 2012. Higher rank support tensor machines. 8th International Symposium on Visual Computing (ISVC 2012). Crete, Greece 16 - 18 Jul 2012

Conference paper

Tensor learning for regression

Guo, W., Kotsia, I. and Patras, I. 2012. Tensor learning for regression. IEEE Transactions on Image Processing. 21 (2), pp. 816-827.

Article

Constraint satisfaction with counting quantifiers

Madelaine, F., Martin, B. and Stacho, J. 2012. Constraint satisfaction with counting quantifiers. The 7th International Computer Science Symposium (CSR 2012). Nizhny Novgorod, Russia 03 - 07 Jul 2012 Springer. pp. 253-265 https://doi.org/10.1007/978-3-642-30642-6_24

Conference paper

Finding vertex-surjective graph homomorphisms

Golovach, P., Lidický, B., Martin, B. and Paulusma, D. 2012. Finding vertex-surjective graph homomorphisms. 7th International Computer Science Symposium (CSR 2012). Nizhny Novgorod, Russia 03 - 07 Jul 2012 Springer. pp. 160-171 https://doi.org/10.1007/978-3-642-30642-6_16

Conference paper

The limits of tractability in resolution-based propositional proof systems

Dantchev, S. and Martin, B. 2011. The limits of tractability in resolution-based propositional proof systems. Annals of Pure and Applied Logic. 163 (6), pp. 656-668. https://doi.org/10.1016/j.apal.2011.11.001

Article

Low-level dichotomy for quantified constraint satisfaction problems

Martin, B. 2011. Low-level dichotomy for quantified constraint satisfaction problems. Information Processing Letters. 111 (20), pp. 999-1003. https://doi.org/10.1016/j.ipl.2011.07.010

Article

Cutting planes and the parameter cutwidth

Dantchev, S. and Martin, B. 2011. Cutting planes and the parameter cutwidth. Theory of Computing Systems. 51 (1), pp. 50-64. https://doi.org/10.1007/s00224-011-9373-0

Article

Parameterized proof complexity

Dantchev, S., Martin, B. and Szeider, S. 2011. Parameterized proof complexity. Computational Complexity. 20 (1), pp. 51-85. https://doi.org/10.1007/s00037-010-0001-1

Article

Tight rank lower bounds for the Sherali–Adams proof system

Dantchev, S., Martin, B. and Rhodes, M. 2009. Tight rank lower bounds for the Sherali–Adams proof system. Theoretical Computer Science. 410 (21-23), pp. 2054-2063. https://doi.org/10.1016/j.tcs.2009.01.002

Article

Max-margin non-negative matrix factorization

Kumar, B., Kotsia, I. and Patras, I. 2012. Max-margin non-negative matrix factorization. Image and Vision Computing. 30 (4-5), pp. 279-291.

Article

Higher rank support tensor machines for visual recognition

Kotsia, I., Guo, W. and Patras, I. 2012. Higher rank support tensor machines for visual recognition. Pattern Recognition. 45 (12), pp. 4192-4203.

Article

Advances in new technologies, interactive interfaces and communicability

Cipolla Ficarra, F., Veltman, K., Verber, D., Cipolla-Ficarra, M. and Kammueller, F. (ed.) 2012. Advances in new technologies, interactive interfaces and communicability. Springer Verlag.

Book

The complexity of surjective homomorphism problems - a survey

Bodirsky, M., Kara, J. and Martin, B. 2012. The complexity of surjective homomorphism problems - a survey. Discrete Applied Mathematics. 160 (12), pp. 1680-1690.

Article

Facial expression recognition in videos using a novel multi-class support vector machines variant

Kotsia, I., Nikolaidis, N. and Pitas, I. 2007. Facial expression recognition in videos using a novel multi-class support vector machines variant. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2007). Honolulu, Hawai, USA 15 - 20 Apr 2007

Conference paper

Multiclass support vector machines and metric multidimensional scaling for facial expression recognition

Kotsia, I., Zafeiriou, S., Nikolaidis, N. and Pitas, I. 2007. Multiclass support vector machines and metric multidimensional scaling for facial expression recognition. IEEE Workshop on Machine Learning for Signal Processing (MLSP 2007). Thessaloniki, Greece 27 - 29 Aug 2007

Conference paper

A semi-lattice model for multi-lateral security

Kammueller, F. 2013. A semi-lattice model for multi-lateral security. in: Data privacy management and autonomous spontaneous security Berlin, Germany Springer.

Book chapter

Texture and shape information fusion for facial action unit recognition

Kotsia, I., Zafeiriou, S., Nikolaidis, N. and Pitas, I. 2008. Texture and shape information fusion for facial action unit recognition. The First International Conference on Advances in Computer-Human Interaction (ACHI 2008). Sainte Luce, Martinique 10 - 15 Feb 2008

Conference paper

Discriminant Non-negative Matrix Factorization and projected gradients for frontal face verification

Kotsia, I., Zafeiriou, S. and Pitas, I. 2008. Discriminant Non-negative Matrix Factorization and projected gradients for frontal face verification. The First COST 2101 Workshop on Biometrics and Identity Management (BIOID 2008). Roskilde University, Denmark 07 - 09 May 2008

Conference paper

Multi-modal emotion-related data collection within a virtual earthquake emulator

Ververidis, D., Kotsia, I., Kotropoulos, C. and Pitas, I. 2008. Multi-modal emotion-related data collection within a virtual earthquake emulator. 6th Language Resources and Evaluation Conference (LREC 2008). Marrakech, Morocco

Conference paper

Frontal view recognition in multiview video sequences

Kotsia, I., Nikolaidis, N. and Pitas, I. 2009. Frontal view recognition in multiview video sequences. IEEE International Conference on Multimedia and Expo (ICME 2009). Cancun, Mexico 28 Jun - 03 Jul 2009

Conference paper

Multiplicative update rules for Multilinear Support Tensor Machines

Kotsia, I. and Patras, I. 2010. Multiplicative update rules for Multilinear Support Tensor Machines. 20th International Conference on Pattern Recognition (ICPR 2010). Istanbul, Turkey 23 - 26 Aug 2010

Conference paper

Relative Margin Support Tensor Machines for gait and action recognition

Kotsia, I. and Patras, I. 2010. Relative Margin Support Tensor Machines for gait and action recognition. ACM International Conference on Image and Video Retrieval (CIVR 10). Xidian, China 05 - 07 Jul 2010

Conference paper

Higher order support tensor regression for head pose estimation

Guo, W., Kotsia, I. and Patras, I. 2011. Higher order support tensor regression for head pose estimation. 12th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2011). Delft, The Netherlands 13 - 15 Apr 2011

Conference paper

Support tucker machines

Kotsia, I. and Patras, I. 2011. Support tucker machines. IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2011). Providence, RI 20 - 25 Jun 2011

Conference paper

Action spotting exploiting the frequency domain

Kotsia, I. and Argyriou, V. 2011. Action spotting exploiting the frequency domain. IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops (CVPRW 2011). Colorado Springs, USA 20 - 25 Jun 2011

Conference paper

Max-margin semi-NMF

Kumar, B., Kotsia, I. and Patras, I. 2011. Max-margin semi-NMF. The 22nd British Machine Vision Conference (BMVC 2011). University of Dundee 29 Aug - 02 Sep 2011

Conference paper

A novel discriminant non-negative matrix factorization algorithm with applications to facial image characterization problems

Kotsia, I., Zafeiriou, S. and Pitas, I. 2007. A novel discriminant non-negative matrix factorization algorithm with applications to facial image characterization problems. IEEE Transactions on Information Forensics and Security. 2 (3), pp. 588-595.

Article