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N.Bassiou and C.Kotropoulos, “Word clustering using PLSA enhanced with long distance bigrams” in Proc. 2010 Int. Conf. Pattern Recognition, Istanbul, Turkey, pp. 4226-4229, August, 2010.
D.Bolis, A.Maronidis, A.Tefas and I.Pitas, “Improving the Robustness of Subspace Learning Techniques for Facial Expression Recognition” in 20th International Conference on Artificial Neural Networks, Thessaloniki, Greece, September 15-18, 2010.
D.Bouzas, N.Arvanitopoulos and A.Tefas, “Optimizing subclass discriminant Error Correcting Output Codes using particle swarm optimization” in research International Joint Conference on Neural Networks (IJCNN), Barcelona, Spain, July 18-23, 2010.
C.Cotsaces, I.Marras, N.Tsapanos, N.Nikolaidis and I.Pitas, “Human-centered Video Analysis for Multimedia Postproduction” in International Symposium on Electronics and Telecommunications (ISETC) 2010, Timisoara, Romania, November, 2010.
A.Iosifidis, N.Nikolaidis and I.Pitas, “Movement recognition exploiting multi-view information” in research International Workshop on Multimedia Signal Processing, Saint Malo, France, October, 2010.
C.Kotropoulos, G.R.Arce and Y.Panagakis, “Ensemble discriminant sparse projections applied to music genre classification” in Proc. 2010 Int. Conf. Pattern Recognition, Istanbul, Turkey, pp. 823-825, August, 2010.
M.Kotti, F.Patterno and C.Kotropoulos, “Speaker-independent negative emotion recognition” in Proc. 2nd Int. Workshop Cognitive Information Processing, Elba Island, Italy, pp. 417-422, June, 2010.
E.Marami and A.Tefas, “Face Detection using Particle Swarm Optimization and Support Vector Machines” in 6th Hellenic Conference on Artificial Intelligence, Athens, Greece, May 4 7, 2010.
E.Marami and A.Tefas, “Using Particle Swarm Optimization for Scaling and Rotation invariant Face Detection” in 2010 research congress on Evolutionary Computation, Barcelona, Spain, July 18 23, 2010.
A.Maronidis, A.Tefas and I.Pitas, “Frontal view recognition using Spectral Clustering and Subspace Learning methods” in 20th International Conference on Artificial Neural Networks, Thessaloniki, Greece, September 15-18, 2010.
S.Nikitidis, N.Nikolaidis and I.Pitas, “Incremental Training of Multiclass Support Vector Machines” in International Conference on Pattern Recognition (ICPR 2010), Istanbul, Turkey, August 23-26, 2010.
Y.Panagakis and C.Kotropoulos, “Music genre classification via topology preserving non-negative tensor factorization and sparse representations” in Proc. 2010 research Int. Conf. Acoustics, Speech, and Signal Processing, Dallas, Texas, pp. 249-252, 2010.
Y.Panagakis, C.Kotropoulos and G.R.Arce, “Sparse Multi-label Linear Embedding Within Nonnegative Tensor Factorization Applied to Music Tagging” in Proc. 2010 Int. Symposium Music Information Retrieval, Utrecht, The Netherlands, pp. 393-398, August, 2010.
Y.Panagakis, C.Kotropoulos and G.R.Arce, “Sparse multi-label linear embedding nonnegative tensor factorization for automatic music tagging” in Proc. 2010 European Signal Processing Conf., Aalborg, Denmark, pp. 492-496, August, 2010.
S.Petrakis and A.Tefas, “Neural Networks Training for Weapon Selection in First-Person Shooter Games” in 20th International Conference on Artificial Neural Networks, Thessaloniki, Greece, September 15-18, 2010.
I.Pitas and N.Nikolaidis, “Anthropocentric Video Analysis For Film And Games Postproduction” in CompSysTech 2010, Sofia, Bulgaria, 17-18 May, 2010.
G.Sfyris, N.Nikolaidis and I.Pitas, “Multi-view Object and Human Body Part Detection Utilizing 3D Scene Information” in research ICIP 2010, Singapore, July, 2010.
N.Tsapanos, A.Tefas and I.Pitas, “Dynamic Shape Learning and Forgetting” in ICANN, 333 338, 2010.
N.Tsapanos, N.Nikolaidis and I.Pitas, “Studying the Effectiveness of Using Linear Subspace Techniques to Improve SVM Classifiers in Facial Image Classifcation” in International Symposium on Electronics and Telecommunications (ISETC), Timisoara, Romania, November, 2010.
E.Zarogianni, I.Marras and N.Nikolaidis, “Using Haptic-based Trajectory Following in 3D Space to Distinguish Between Men and Women” in EuroHaptics 2010, Amsterdam, The Netherlands, 225-230, July, 2010.
D.Zotos, N.Nikolaidis and I.Pitas, “Video Replica Detection Utilizing R-Trees And Frame-Based Voting” in research International Conference on Multimedia and Expo (ICME 2010), Singapore, July, 2010.
2009

N.Gkalelis, N.Nikolaidis and I.Pitas, “View independent human movement recognition from multi-view video exploiting a circular invariant posture representation” in Proc. research International Conference on Multimedia and Expo (ICME 2009), New York, USA, June July, 2009.
N.Gkalelis, A.Tefas and I.Pitas, “Fusion of movement specific human identification experts” in Proc Joint COST 2101 & COST 2102 International Conference on Biometric ID Management and Multimodal Communication, Madrid, Spain, September, 2009.
N.Gkalelis, A.Tefas and I.Pitas, “Human identification from human movements” in research International Conference on Image Processing (ICIP 2009), Cairo, Egypt, November, 2009.
N.Gkalelis, H.Kim, A.Hilton, N.Nikolaidis and I.Pitas, “The i3DPost multi-view and 3D human action/interaction database” in 6th Conference on Visual Media Production (CVMP 2009), London, UK, Nov, 2009.
G.Goudelis, A.Tefas and I.Pitas, “Using Mutual Information to Indicate Facial Poses in Video Sequences” in ACM International Conference on Image and Video Retrieval, July 8 10, 2009.
I.Kotsia, N.Nikolaidis and I.Pitas, “Frontal Facial View Recognition in Video Sequences using DNMF and SVMs” in Proc. of 2009 research International Conference on Multimedia and Expo, New York, New York, USA, 28 June-3 July, 2009.
M.Krinidis, N.Nikolaidis and I.Pitas, “3D Head Pose Estimation in Monocular Video Sequences Using Deformable Surfaces and Radial Basis Functions” in research Transactions on Circuits and Systems for Video TechnologyRetrieval of Multimedia)Technologies, vol. 19, no. 2, pp. 261-272, February, 2009.
M.Kyperountas and I.Pitas, “Facial Expression Recognition Using Two-Class Discriminant Features” in Biometric ID Management and Multimodal Communication, Berlin, 89-96, September, 2009.
M.Kyperountas, A.Tefas and I.Pitas, “Pairwise Facial Expression Classification” in MMSP 2009, Brazil, 1-4, OCTOBER, 2009.
N.Nikolaidis and I.Pitas, “Still Image and Video Fingerprinting” in 7th International Conference on Advances in Pattern Recognition (ICAPR 2009), Kolkata, India, invited paper – keynote speech of I. Pitas, February, 2009.
Y.Panagakis, C.Kotropoulos and G.R.Arce, “Music genre classification via sparse representations of auditory temporal modulations” in Proc. 17th European Signal Processing Conf., Glasgow, pp. 1-5, August, 2009.
Y.Panagakis, C.Kotropoulos and G.R.Arce, “Music genre classification using locality preserving non-negative tensor factorization and sparse representations” in Proc. 2009 Int. Symposium Music Information Retrieval, Kobe, Japan, pp. 249-254, October, 2009.
N.Vretos, N.Nikolaidis and I.Pitas, “A Model Based Facial Expression Recognition Algorithm using the Eigendecomposition of the Gram Matrix” in Proc. of Int. Conf. on Image Processing (ICIP 2009), Cairo, Egypt, 7-11 November, 2009.
N.Vretos, N.Nikolaidis and I.Pitas, “A Perceptual Hashing Algorithm Using Latent Dirichlet Allocation” in Proc. of Int. Conf. on Multimedia and Expo (ICME 2009), New York, New York, USA, June 28 July 3, 2009.
2008

N.Barbalios, N.Nikolaidis and I.Pitas, “3D Human Face Modelling >From Uncalibrated Images Using Spline Based Deformation” in 3rd International Conference on Computer Vision Theory and Applications (VISAPP 2008), Funchal Madeira, Portugal, January, 2008.
E.Benetos and C.Kotropoulos, “A tensor-based approach for automatic music genre classification” in Proc. 16th European Signal Processing Conf., Lausanne, Switzerland, August, 2008.
I.Buciu, I.Pitas and I.Nafornita, “Holistic and Local Image Representations for Human Face Analysis” in research International Conference on Communications, Bucharest, Romania, pp. 137 144, June 05-07, 2008.
I.Buciu, I.Pitas and I.Nafornita, “Global Gabor features for rotation invariant object classification” in Proc. research Fourth International Conference on Intelligent Computer Communications and Processing (ICCP), Cluj-Napoca, Romania, pp. 41 46, August 28-30, 2008.
I.Buciu, I.Nafornita and I.Pitas, “Facial Expression Recognition under Noisy Environment Using Gabor Filters” in Proc. research International Symposium on Electronics and Telecommunications (ETC), Timisoara, Romania, September 25-26, 2008.
N.Gkalelis, A.Tefas and I.Pitas, “Human movement recognition using fuzzy clustering and discriminant analysis” in Proc. 16th European Signal Processing Conference (EUSIPCO 2008), Lausanne, Switzerland, August, 2008.
N.Gkalelis, A.Tefas and I.Pitas, “Sparse human movement representation and recognition” in Proc. research 2008 International Workshop on Multimedia Signal Processing (MMSP 2008), Cairns, Australia, October, 2008.
G.Goudelis, S.Zafeiriou, A.Tefas and I.Pitas, “Motivating class-specific nonlinear projections for face verification” in 2008 research International Conference on Image Processing, San Diego, California, U.S.A., Octomber 12 15, 2008.
I.Kotsia, S.Zafeiriou, N.Nikolaidis and I.Pitas, “Texture and Shape Information Fusion for Facial Action Unit Recognition” in Proc. of The First International Conference on Advances in Computer-Human Interaction (ACHI 08), Sainte Luce, Martinique, 10-15 February, 2008.
I.Kotsia, S.Zafeiriou and I.Pitas, “Discriminant Non-negative Matrix Factorization and Projected Gradients for Frontal Face Verification” in Proc. of The First COST 2101 Workshop on Biometrics and Identity Management (BIOID 2008), Roskilde University, Denmark, 7-9 May, 2008.
M.Kotti and C.Kotropoulos, “Gender Classification In Two Emotional Speech Databases” in Proc. Int. Conf. Pattern Recognition, Florida, U.S.A, December, 2008.
M.Kyperountas, A.Tefas and I.Pitas, “Face recognition via adaptive discriminant clustering” in Image Processing, 2008. ICIP 2008. 15th research International Conference on, San Diego,CA, 2744-2747, October, 2008.
P.Moschonas and C.Kotropoulos, “Multimodal Speaker Identification based on Text and Speech” in Proc. COST 2101 Workshop Biometrics and Identity Management BioID’2008, Rosklide University, Denmark, vol. LNCS 5372, pp. 100-106, May 7-9, 2008.
S.Nikitidis, S.Zafeiriou and I.Pitas, “Camera Motion Estimation Using Particle Filters” in Proc. of 3rd International Conference on Computer Vision Theory and Applications (VISAPP 2008), Funchal Madeira, Portugal, January, 2008.
Y.Panagakis, E.Benetos and C.Kotropoulos, “Music genre classification: A multilinear approach” in Proc. Int. Symposium Music Information Retrieval, Philadelphia, U.S.A, pp. 583-588, September, 2008.
D.Spachos, A.Zlantintsi, V.Moschou, P.Antonopoulos, K.Tzimouli, E.Benetos, M.Kotti, C.Kotropoulos, N.Nikolaidis, P.Maragos and I.Pitas, “MUSCLE movie-database: A multimodal corpus with rich annotation for dialogue and Saliency Detection” in Proc. LREC 2008 Workshop on Multimodal Corpora, Marrakech, Morocco, May 26-27, 2008.
N.Tsapanos, A.Tefas and I.Pitas, “An Online Self-Balancing Binary Search Tree for Hierarchical Shape Matching” in 3rd International Conference on Computer Vision Theory and Applications (VISAPP 2008), Funchal Madeira, Portugal, January, 2008.
D.Ververidis, I.Kotsia, C.Kotropoulos and I.Pitas, “Multi-modal emotion-related data collection within a virtual earthquake emulator” in Proc. Of 6th Language Resources and Evaluation Conference, Marrakech, Morocco, 28-30 May, 2008.
N.Vretos, V.Solachidis, P.Somol and I.Pitas, “Facial Expression Recognition Using Angle-related Information From Facial Meshes” in Proc. EUSIPCO 2008, Lausanne, Switzerland, August 25-29, 2008.
S.Zafeiriou, A.Tefas and I.Pitas, “Gender Determination Using a Support Vector Machine Variant” in Proc. 16th European Signal Processing Conference (EUSIPCO 2008), Lausanne, Switzerland, August, 2008.
2007

G.Almpanidis and C.Kotropoulos, “Automatic phonemic segmentation using the Bayesian information criterion with generalised Gamma priors” in Proc. XV European Signal Processing Conf., Poznan, Poland, pp. 2055-2059, September, 2007.
P.Antonopoulos, N.Maglaveras and I.Pitas, “Hierarchical face clustering using SIFT image features” in research Symposium on Computational Intelligence for Image and Signal Processing (CIISP 2007), Honolulu, Hawaii, USA, 5 pages, 2007.
S.Asteriadis, N.Nikolaidis, I.Pitas and M.Pardas, “Detection of facial characteristics based on edge information” in International Conference on Computer Vision Theory and Applications (VISAPP 2007), Barcelona, Spain, 2007.
E.Benetos, M.Kotti and C.Kotropoulos, “Large scale musical instrument identification” in Proc. 4th Sound and Music Computing Conference, Lefkada, pp. 283-286, July, 2007.
R.Cardenes, M.Bach, Y.Chi, I.Marras, R.Luis, P.Cashman, M.Anderson and M.Bultelle, “Multimodal Evaluation for Medical Image Segmentation” in Proc. of 12th International Conference on Computer Analysis of Images and Patterns (CAIP?07), Vienna, Austria, August, 2007.
Z.Cernekova, N.Nikolaidis and I.Pitas, “Single Camera Pointing Gesture Recognition Using Spatial Features and Support Vector Machines” in Proc. of 15th European Signal Processing Conference (EUSIPCO-2007), Poznan, Poland, September, 2007.
I.Cherif, V.Solachidis and I.Pitas, “Shot Type Identification Of Movie Content” in Proc. of Int. Symposium Signal Processing and its Applications (ISSPA 2007), Sharjah, United Arab Emirates, February, 2007.
A.Digka, K.Lyroudia, L.Kubinova, I.Marras, N.Nikolaidis and I.Pitas, “3-D Reconstruction Of Pulpal Blood Vessels By Using Confocal Microscopy” in 2nd annual meeting of IADR-Continental European and Israeli Divisions, Thessaloniki, Greece, September, 2007.
G.Goudelis, S.Zafeiriou, A.Tefas and I.Pitas, “A Novel Kernel Discriminant Analysis For Face Verification” in Proc.of 2007 research International Conference on Image Processing, September, 2007.
A.Hajdu and I.Pitas, “Tracing on heterogeneous grids to improve concavity performance of snake algorithms” in Proc. of Int.Symposium Signal Processing and its Applications (ISSPA 2007), Sharjah, United Arab Emirates, 12 15 February, 2007.
A.Hajdu, C.Giamas and I.Pitas, “Object simplification using a skeleton-based weight function” in Proc. of Int. Symposium Signals, Circuits, and Systems (ISSCS 2007), Iasi, Romania, 12-13 July, 2007.
A.Hajdu, C.Giamas, N.Vretos and I.Pitas, “Metadata description of thermal videos for rescue operations” in Proc. of Int. Symposium Signals, Circuits, and Systems (ISSCS 2007), Iasi, Romania, 12-13 July, 2007.
A.Hajdu and I.Pitas, “Compression optimized tracing of digital curves using graph theory” in Proc. of Int. Conf. on Image Processing (ICIP 2007), San Antonio, Texas, 16-19 September, 2007.
A.Hajdu and I.Pitas, “Content adaptive heterogeneous snakes” in Proc. of Int. Conf. on Image Processing (ICIP 2007), San Antonio, Texas, 16-19 September, 2007.
E.Horness, N.Nikolaidis and I.Pitas, “Blind City Maps Watermarking Utilizing Road Width Information” in 2007 EURASIP European Signal Processing Conference (EUSIPCO 2007), Poznan, Poland, 2007.
I.Kasampalidis, I.Pitas, G.Karagianopoulou, I.Kostopoulos, P.Aretini, G.Bevilacqua, A.Cavazzana, M.Menicagli, A.Starita and K.Lyroudia, “FISH Image Analysis Using a Modified Radial Basis Function Network” in ISSCS 2007, Iasi, Romania, July 12-13, 2007.
I.Kasampalidis, I.Pitas, G.Karagianopoulou, I.Kostopoulos, P.Aretini, G.Bevilacqua, A.Cavazzana, M.Menicagli, A.Starita and K.Lyroudia, “FISH Image analysis using a modified radial basis function Network.” in ISSCS 2007, Iasi, Romania, July 12-13, 2007.
I.Kotsia, N.Nikolaidis and I.Pitas, “Facial Expression Recognition In Videos Using A Novel Multi-class Support Vector Machines Variant” in Proc. of Int. Conf. Acoustics, Speech and Signal Processing (ICASSP 2007), Honolulu, Hawai, USA, 15-20 April, 2007.
I.Kotsia, S.Zafeiriou, N.Nikolaidis and I.Pitas, “Multiclass Support Vector Machines And Metric Multidimensional Scaling For Facial Expression Recognition” in Proc. of research Workshop on Neural Networks for Signal Processing( MLSP 2007), Thessaloniki, Greece, 27-29 August, 2007.
M.Kotti, E.Benetos and C.Kotropoulos, “Neural network-based movie dialogue detection” in Proc. 2007research Engineering Applications of Neural Networks, Thessaloniki, Hellas, pp. 380-386, 29-31 August, 2007.
M.Krinidis, N.Nikolaidis and I.Pitas, “3D Head Pose Estimation Using Support Vector Machines and Physics-Based Deformable Surfaces” in Proc. of Int. Symposium Signal Processing and its Applications (ISSPA 2007), Sharaj, United Emirates, 12-15 February, 2007.
M.Krinidis, N.Nikolaidis and I.Pitas, “Using Deformable Surface Models to Derive a DCT-Like 2D Transform” in Proc. of Int. Conf. Multimedia & Expo (ICME 2007), Beijing, China, July 2-5, 2007.
M.Kyperountas, A.Tefas and I.Pitas, “Face verification using locally linear discriminant models” in Proc. of Int. Conf. on Image Processing (ICIP 2007), San Antonio, 16-19 Sep., 2007.
V.Moschou, M.Kotti, E.Benetos and C.Kotropoulos, “Systematic comparison of BIC-based speaker segmentation systems” in Proc. 2007 research Multimedia Signal Processing Conf., Crete, Greece, pp. 66-69, October 1-3, 2007.
M.Sedaaghi, D.Ververidis and C.Kotropoulos, “Improving speech emotion recognition using adaptive genetic algorithms” in Proc. XV European Signal Processing Conf., Poznan, Poland, pp. 2209-2213, 2007.
M.Sedaaghi, C.Kotropoulos and D.Ververidis, “Using adaptive genetic algorithms to improve speech emotion recognition” in Proc. 2007 research Multimedia Signal Processing Conf., Chania, Greece, pp. 461-464, October 1-3, 2007.
D.Ververidis and C.Kotropoulos, “Accurate estimate of the cross-validated prediction error variance in Bayes classifiers” in Proc. of Machine Learning for Signal Processing (MLSP), Thessaloniki, pp. 354-359, August 27-29, 2007.
N.Vretos, V.Solachidis and I.Pitas, “A Robust Face Clustering Algorithm Based on Mutual Information Using Tracking Information” in Proc. of 11th Panhellenic Conference on Informatics (PCI’2007), Patra, Greece, 18-20 May, 2007.
N.Vretos, V.Solachidis and I.Pitas, “A Face Tracker Trajectories Clustering Using Mutual Information” in Proc. of Int. Workshop Multimedia Signal Processing (MMSP 2007), Chania-Crete, Greece, 1-3 October, 2007.



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