de Valk R., Volk A., Holzapfel A., Pikrakis A., Kroher N. and Six J., “MIRchiving: Challenges and opportunities of connecting MIR research and digital music archives”, 4rd International workshop on Digital Libraries for Musicology, 2017, ACM.

Kroher N., Pikrakis A. and Díaz-Báñez J.-M., “Image-Based Singer Identification in Flamenco Videos”, Proceedings of the 7th International Workshop on Folk Music Analysis (FMA-2017), 14-16 June 2017, Malaga, Spain, pp. 88-92.

“Audio-based Distributional Semantic Models for Music Auto-tagging and Similarity Measurement”, Karamanolakis I., Iosif E., Zlatintsi A., Pikrakis A., Potamianos A., Proceedings of the Workshop on Multimodal processing, modeling and learning approaches for human-computer/robot interaction, satellite event of EUSIPCO-2017, Kos, Greece, September 2017.

Paraskevopoulos G., Karamanolakis I., Iosif E., Pikrakis A., Potamianos A., “Sensory-Aware Multimodal Fusion for Word Semantic Similarity Estimation”, Proceedings of the Workshop on Multimodal processing, modeling and learning approaches for human-computer/robot interaction, satellite event of EUSIPCO-2017, Kos, Greece, September 2017.

Pikrakis, A., Kopsinis, Y., Kroher, N. and Diaz-Banez, J. M., “Unsupervised singing voice detection using dictionary learning”, 24th European Signal Processing Conference (EUSIPCO), 2016, Budapest, Hungary, pp. 1212-1216.

Pikrakis A., Kroher N. and Díaz-Báñez J.-M.,, “Detection of Melodic Patterns in Automatic Transcriptions of Flamenco Singing”, Proceedings of the 6th International Workshop on Folk Music Analysis (FMA-2016), 15-17 June 2016, Dublin, Ireland, pp. 14-17.

Karamanolakis, G., Iosif, E., Zlatintsi, A., Pikrakis, A., and Potamianos, A., “Audio-based Distributional Representations of Meaning Using a Fusion of Feature Encodings”, Proc. of Interspeech, 2016, pp. 3658—3662.

Kroher, N., Pikrakis, A., Moreno, J., & Diaz-Banez, J. M. (2015, August). Discovery of repeated vocal patterns in polyphonic audio: A case study on flamenco music. In 23rd European Signal Processing Conference (EUSIPCO), 2015, Nice, France, pp. 41-45.

Pikrakis, A., Kopsinis, Y., Chouvardas, S., and Theodoridis, S., “Pattern Classification Formulated as a Missing Data Task: The Audio Genre Classification Case”, Proceedings of the 40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015, Brisbane, Queensland, Australia.

Pikrakis, A., and Sergios Theodoridis. "Speech-music discrimination: A deep learning perspective." Proceedings of the 22nd European Signal processing Conference (EUSIPCO), pp. 616-620, 2014, Lisbon, Portugal.

Pikrakis, A., “A deep learning approach to rhythm modeling with applications”, 6^th International Workshop on Machine Learning and Music (ΜML 2013,), held in conjunction with the European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML/PKDD 2013), Prague, Czech Republic, September 23, 2013.

Fouloulis, T., Pikrakis, A., and Emilios Cambouropoulos, “Traditional asymmetric rhythms: a refined model of meter induction based on asymmetric meter templates”, Proceedings of the 3^d International Workshop on Folk Music Analysis (FMA 2013), June 6-7, 2013, Amsterdam, Netherlands.

Fouloulis, T., Pikrakis, A., and Emilios Cambouropoulos, “Asymmetric beat/tactus: Investigating the performance of beat-tracking systems on traditional asymmetric rhythms”, Proceedings of the 12^th International Conference of Music Perception and Cognition and the 8^th Triennial Conference of the European Society for the Cognitive Sciences of Music, July 23-28, 2012, Thessaloniki, Greece.

Pikrakis, A., Gómez, F., Oramas, S., Díaz-Báñez, J. M., Mora, J., Escobar-Borrego, F., Gómez, E., Salamon, J., “Tracking Melodic Patterns in Flamenco Singing by Analyzing Polyphonic Music Recordings”, Proceedings of the 13^thInternational Society for Music Information Retrieval Conference (ISMIR), October 8-12, 2012, Porto, Portugal.

Psarakis, M., Pikrakis, A., Dendrinos, G., “FPGA-based Acceleration for Tracking Audio Effects in Movies”, Proceedings of the 20^th IEEE Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), April 29 – May 1, 2012, Toronto, Canda, pp. 85-92.

Pikrakis, A. “Audio thumbnailing in video sharing sites”, Proceedings of the 20th European Signal Processing Conference (EUSIPCO), 2012, 27-31 August, 2012, Bucharest, Romania, pp. 1284-1288.

Gómez, F., Pikrakis, A., Mora, J., Dıaz-Bánez, J. M., Gómez, E., & Escobar, F., “Automatic detection of ornamentation in flamenco”, Proceedings of the Fourth International Workshop on Machine Learning and Music (MML, satellite workshop of the Neural Information Processing Systems conference (NIPS 2011)), December 16-17, 2011, Sierra Nevada, Spain.

Giannakopoulos, T., Pikrakis, A., Theodoridis, S., “A multimodal approach to violence detection in video sharing sites”, Proceedings of the 20^th IAPR International Conference on Pattern Recognition (ICPR), August 23-26, 2010, Istanbul, Turkey, pp. 3244-3247.

Giannakopoulos, T., Pikrakis, A., Theodoridis, S., “A dimensional approach to emotion recognition of speech from movies”, Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP-2009), April 19-24, 2009, Taiwan, Taipei, pp. 65-68, 2009.

A. Pikrakis and S. Theodoridis, “Adaptive Structural Analysis of Music Recordings”, Proceedings of the 17^th European Signal Processing Conference (EUSIPCO), August 24-28, 2009, Glasgow, Scotland.

Giannakopoulos, T., Pikrakis, A., Theodoridis, S., “Music tracking in audio streams from movies”, Proceedings of the 2008 International Workshop on Multimedia Signal Processing Workshop (IEEE MMSP), October 8-10, 2008, Cairns, Queensland, Australia, pp. 950-955.

Giannakopoulos, T., Pikrakis, A., Theodoridis, S., “A novel efficient approach for audio segmentation”, Proceedings of the 19^th IAPR International Conference on Pattern Recognition (ICPR), December 8-11, 2008, Florida, USA.

Pikrakis, A., Giannakopoulos, T., Theodoridis, S., “Gunshot detection in audio streams from movies by means of dynamic programming and Bayesian Networks”, Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing ( ICASSP-2008), March 30 – April 4, Las Vegas, USA.

Giannakopoulos, T., Pikrakis, A., Theodoridis, S., “A multi-class audio classification method with respect to violent content in movies using Bayesian Networks”, Proceedings of the 2007 International Workshop on Multimedia Signal Processing Workshop (IEEE MMSP), October 1-3, 2007, Chania, Greece.

Antonopoulos, I., Pikrakis, A., Theodoridis, S., “Locating rhythmic patterns in music recordings using Hidden Markov Models”, Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Honolulu, Hawaii, USA, April 15-20, 2007.

Pikrakis, A., and Theodoridis, S., “An Application of Empirical Mode Decomposition on Tempo Induction from Music Recordings”, Proceedings of the 2007 International Conference on Music Information Retrieval and Related Activities (ISMIR 2007), September 23-27, 2007, Vienna, Austria, pp. 301-304.

Antonopoulos, I., Pikrakis, A., Theodoridis, S., Cornelis, O., Moelants, D., & Leman, M., “Music retrieval by rhythmic similarity applied on greek and african traditional music”, Proceedings of the 2007 International Conference on Music Information Retrieval and Related Activities (ISMIR 2007), September 23-27, 2007, Vienna, Austria, pp. 297-300.

Pikrakis, A., Giannakopoulos, T., & Theodoridis, S., “A dynamic programming approach to speech/music discrimination of radio recordings”, Proceedings of the 15^th European Signal Processing Conference (EUSIPCO), September 3-7, 2007, Poznan, Poland.

G. Pavlidis, D. Tsiafakis, F. Arnaoutoglou, K. Balla, C. Chamzas , A. Pikrakis, “Musical Universe”, Proceedings of the Third International Conference of Museology & Annual Conference of AVICOM, June 5 – 9, 2006, Mytilene, Greece.

A. Pikrakis, T. Giannakopoulos and S. Theodoridis, “A computationally efficient speech/music discriminator for radio recordings”, Proceedings of the 2006 International Conference on Music Information Retrieval and Related Activities (ISMIR 2006), 8-12 October 2006, Victoria BC, Canada.

A. Pikrakis, T. Giannakopoulos and S. Theodoridis, “Speech/Music Discrimination for radio broadcasts using a hybrid HMM-Bayesian Network architecture”, Proceedings of the 14^th European Signal Processing Conference (EUSIPCO 2006), September 2006, Florence, Italy.

T. Giannakopoulos, A. Pikrakis and S. Theodoridis, “A Speech/music Discriminator for Radio Recordings Using Bayesian Networks”, Proceedings of the 2006 International Conference on Acoustics, Speech and Signal Processing (ICASSP 2006), May 14-19, 2006, Toulouse, France.

A. Pikrakis and S. Theodoridis, “Melody Spotting in Raw Audio Recordings using Variable Duration Hidden Markov Models”, Proceedings of the 13th European Signal Processing Conference (EUSIPCO 2005), September 2005, Antalya, Turkey.

A. Pikrakis and S. Theodoridis, “A novel HMM approach to Melody Spotting in Raw Audio Recordings”, Proceedings of the 6th International Conference on Music Information Retrieval (ISMIR 2005), September 2005, London, UK.

Α. Pikrakis, S. Theodoridis, D. Kamarotos, “Classification of musical patterns using variable duration Hidden Markov Models”, Proceedings of the ΧΙI European Signal Processing Conference (EUSIPCO2004), September 2004, Vienna, Austria.

Α. Pikrakis, J. Antonopoulos, S. Theodoridis, “Music meter and tempo tracking from raw polyphonic audio”, Proceedings of the 5th International Conference on Music Information Retrieval (ISMIR 2004), October 2004, Barcelona, Spain.

A. Pikrakis, S. Theodoridis, D. Kamarotos, “Recognition of Isolated Musical Patterns using Hidden Markov Models”, Lecture Notes in Computer Science and Artificial Intelligence, LNCS/LNAI 2445, Springer Verlag, pp. 133-143, 2002. Πρόκειται για ανατύπωση της ομότιτλης εργασίας από τα πρακτικά του συνεδρίου: Second International Conference on Music and Artificial Intelligence (ICMAI), September 2002, Edinburgh, Scotland, UK.

Α. Pikrakis, S. Theodoridis, D. Kamarotos, “Recognition of Isolated Musical Patterns using Context Dependent Dynamic Time Warping”, Proceedings of the ΧΙ European Signal Processing Conference (EUSIPCO), September 2002, Toulouse, France.

A. Pikrakis, S. Theodoridis, D. Kamarotos, “Recognition of Isolated Musical Patterns using Discrete observation Hidden Markov Models”, Proceedings of the ΙΧ European Signal Processing Conference (EUSIPCO), September 1998, Rhodos, Greece.

D. DeRoure, W. Hall, S. Reich, A. Pikrakis, G. Hill, M. Stairmand, “An open architecture for supporting collaboration on the web”, Proceedings of the WETICE '98-IEEE Seventh International Workshop on Enabling Technologies Infrastructure for Collaborative Enterprises, June 1998, Stanford University, California, USA.

A. Pikrakis, T. Bitsikas, S. Sfakianakis, M. Hatzopoulos, D. DeRoure, W. Hall, S. Reich, G. Hill, M. Stairmand, “MEMOIR - software agents for finding similar users by trails”, Proceedings of the Third International Conference and Exhibition on the Practical Application of Intelligent Agents and Multi-Agents (PAAM98), March 23-25, London, UK. (Mar. 1998), pp. 453-466.

A. Pikrakis, S. Theodoridis, D. Kamarotos, “Recognition of Isolated Musical Patterns in the Context of Greek Traditional Music Using Dynamic Time Warping Techniques”, Proceedings of the International Computer Music Conference (ICMC 97), Thessaloniki, Greece, 1997.

Α. Pikrakis, S. Theodoridis, D. Kamarotos, “Recognition of Isolated Musical Patterns in the Context of Greek Traditional Music”, Proceedings of the IEEE International Conference on Electronics Circuits and Systems (ICECS), Rhodos, Greece, 1996.

S. Sirmakessis, G. Panagopoulou, V. Margioulas, A. Pikrakis, "Compression algorithms for GIS applications", Proceedings of the EGIS/MARI' 94 (Fifth European Conference and Exhibition on Geographical Information Systems), Vol.1, pp.344-351, 1994.