Publications

All research publications produced within the COGNITUS project are released with Open Access via a suitable data repository, as mandated by the Horizon 2020 programme.

Journal papers

  • André Mourão, João Magalhães, “Balancing search space partitions by sparse coding for distributed redundant media indexing and retrieval,” in International Journal of Multimedia Information Retrieval, 2017: 7(1), 57–70. (DOI: 10.1007/s13735-017-0140-0)
  • André Seixas Dias, Shenglan Huang, Saverio G. Blasi, Marta Mrak and Ebroul Izquierdo, “Time-Constrained Video Delivery using Adaptive Coding Parameters,” in IEEE Transactions on Circuits and Systems for Video Technology (TCSVT), July 2018 (DOI: 10.1109/TCSVT.2018.2857212)
  • Ivan Zupancic, Matteo Naccari, Marta Mrak and Ebroul Izquierdo, “Two-Pass Rate Control for Improved Quality of Experience in UHDTV Delivery”, in IEEE Journal of Selected Topics in Signal Processing, Volume: 11, Issue: 1, Feb. 2017 (DOI: 10.1109/JSTSP.2016.2634458)

Conference proceedings

2019

  • Gonçalo Marcelino, David Semedo, André Mourão, Saverio Blasi, Marta Mrak, João Magalhães, “A Benchmark of Visual Storytelling in Social Media,” In Proceedings of the ACM ICMR, June 2019, Ottawa, Canada. (DOI: 10.1145/3323873.3325047)
  • Farzad Toutounchi, Ebroul Izquierdo, “Advanced Super-Resolution using Lossless Pooling Convolutional Networks”, IEEE Winter Conference on Applications of Computer Vision, Waikoloa Village, HI, USA, 2019. (DOI: 10.1109/WACV.2019.00171)
  • Flávio Martins, João Magalhães, and Jamie Callan, “Modeling Temporal Evidence from External Collections,” In Proceedings of the Twelfth ACM International Conference on Web Search and Data Mining (WSDM 19),  ACM, Melbourne, Australia (DOI: 10.1145/3289600.3290966).

2018

  • Maria Santamaria, Ebroul Izquierdo, Saverio Blasi, Marta Mrak, “Estimation of Rate Control Parameters for Video Coding using CNN”, IEEE International Conference on Visual Communications and Image Processing, Taichung, Taiwan, 2018. (DOI: 10.5281/zenodo.2598158)
  • Nikolaos Stefanakis and Athanasios Mouchtaris, “Normalization of Partly Overlapping Audio Recordings from the Same Event Based on Relative Signal Powers,” in Proc. Int. Conf. Audio and Acoust. Sig. Proc. (ICASSP), Calgary, Canada, April 15-20, 2018. (DOI: 10.1109/ICASSP.2018.8461919)
  • Farzad Toutounchi, Ebroul Izquierdo, “Enhancing Digital Zoom in Mobile Phone Cameras by Low Complexity Super-Resolution”, IEEE International Conference on Multimedia & Expo Workshops, San Diego, CA, USA, 2018. (DOI: 10.5281/zenodo.1487891)
  • André Seixas Dias, Saverio Blasi, Marta Mrak, Shenglan Huang and Ebroul Izquierdo, “Adaptive Video Encoding for Time-Constrained Compression and Delivery,” In Proceedings of the European Signal Processing Conference (EUSIPCO) 2018, Rome, Italy, September 2018 (DOI: 10.5281/zenodo.1494905)
  • Saverio Blasi, André Seixas Dias, Marta Mrak, Shenglan Huang and Ebroul Izquierdo, “Complexity-Constrained Video Encoding and Delivery using Configuration Transfer Matrix,” In Proceedings of the Picture Coding Symposium (PCS) 2018, San Francisco, CA, USA, June 2018 (DOI: 10.5281/zenodo.1494921)
  • Andre Seixas Dias, Saverio Blasi, Fiona Rivera, Ebroul Izquierdo and Marta Mrak, “An Overview of Recent Video Coding Developments in MPEG and AOMEDIA,” in Proc. International Broadcasting Convention Conference (IBC 2018), 12-16 September 2018. (DOI: 10.5281/zenodo.1494930 )
  • David Semedo and João Magalhães. 2018, “Temporal Cross-Media Retrieval with Soft-Smoothing,” In Proceedings of the 2018 ACM on Multimedia Conference (MM’18). ACM, New York, NY, USA (DOI: 10.1145/3240508.3240665)
  • Flávio Martins, João Magalhães, and Jamie Callan. 2018. A Vertical PRF Architecture for Microblog Search. In Proceedings of the 2018 ACM SIGIR International Conference on Theory of Information Retrieval (ICTIR ’18). ACM, New York, NY, USA, 107-114. (DOI: 10.1145/3234944.3234960)
  • David Semedo, João Magalhães, and Flávio Martins. 2018, “Inferring User Gender from User Generated Visual Content on a Deep Semantic Space,” In Proceedings of the 26th European Signal Processing Conference (EUSIPCO 2018), Rome, Italy. (DOI: 10.23919/EUSIPCO.2018.8553425)
  • Gonçalo Marcelino, Ricardo Pinto, and João Magalhães. 2018. Ranking News-Quality Multimedia. In Proceedings of the 2018 ACM on International Conference on Multimedia Retrieval (ICMR ’18). ACM, New York, NY, USA, 10-18. (DOI: 10.1145/3206025.3206053)
  • Michael Evans, Olivia Larner, Lianne Kerlin, Rosie Campbell, “Feels Like Being There: Viewers Describe the Quality of Experience of Festival Video Using Their Own Words,” in Proc. ACM CHI 2018, Montreal, Canada, 21-26 April 2018. (DOI: 10.5281/zenodo.1466945)

2017

  • Stefanakis, S. Chonianakis and A. Mouchtaris, “Automatic matching and synchronization of user generated videos from a large scale athletic event,” in Proc. IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP 2017), New Orleans 5-9 March 2017. (DOI: 10.5281/zenodo.268407)
  • Juliette Carter, Saverio Blasi, Marta Mrak, “Complexity-Driven Rate-Control for Parallel HEVC Coding”, in Proc. IEEE Visual Communications and Image Processing 2017 (IEEE VCIP 2017), St Petersburg, USA, 10-13 December 2017. (DOI: 10.5281/zenodo.1040287)
  • Evans, Michael, Kerlin, Lianne, & Jones, Rhianne, “Fair Treatment and Informed Choice for Contributors of User-Generated Video”, in Proc. ACM TVX 2017, Hilversum, The Netherlands, 14-16 June 2017. (DOI: 10.5281/zenodo.1039879)
  • Kerlin, Lianne, Evans, Michael, & Jones, Rhianne, “Professional Use of User-Generated Video – Views of Producers and Contributors”, in Proc. ACM TVX 2017, Hilversum, The Netherlands, 14-16 June 2017. (DOI: 10.5281/zenodo.1040270)
  • Nikolaos Stefanakis, Athanasios Mouchtaris, “Synchronization Ambiguity in Audio Content Generated by Users Attending the Same Public Event,” in Proc. ACM TVX 2017, Hilversum, The Netherlands, 14-16 June 2017. (DOI: 10.5281/zenodo.437157)
  • Stavroula Ntoa, George Margetis, Constantine Stephanidis, “Rewarding Contributions in a User-Generated Video Online Community,” in Proc. ACM TVX 2017, Hilversum, The Netherlands, 14-16 June 2017. (DOI: 10.5281/zenodo.834200)
  • Farzad Toutounchi, Valia Guerra Ones, Ebroul Izquierdo, “An Efficient Video Super-Resolution Approach based on Sparse Representation,” in Proc. IEEE MMSP 2017, Luton, UK, 16-18 October 2017. (DOI: 10.1109/MMSP.2017.8122217)
  • Goncalo Mordido, Joao Magalhaes, Sofia Cavaco, “Automatic Organisation,Segmenation,and Filtering of User-Generated Audio Content,” in Proc. IEEE MMSP 2017, Luton, UK, 16-18 October 2017. (DOI: 10.1109/MMSP.2017.8122276)
  • Nikolaos Stefanakis, Athanasios Mouchtaris, “Maximum Component Elimination in Mixing of User Generated Audio Recordings,” in Proc. IEEE MMSP 2017, Luton, UK, 16-18 October 2017. (DOI: 10.1109/MMSP.2017.8122279)
  • Stefanakis, M. Viskadouros and A. Mouchtaris, “A subjective evaluation on mixtures of crowdsourced audio recordings” in Proc. European Signal Processing Conference (EUSIPCO 2017), Kos, Greece, August 28 – September 2, 2017, pp. 1819-1823. (DOI: 10.5281/zenodo.1159532)
  • Rui Queiros, Nuno Correia, João Magalhães, “Live Collaborative Social-Media Video Timelines,” in Proc. Content-Based Multimedia Indexing 2017. (DOI: 10.475/123_4)
  • Pedro Martins, Nuno Correia, “Semi-automatic Video Assessment System,” in Proc. International Workshop on Content-Based Multimedia Indexing (CBMI) 2017, Article No. 33. (DOI: 10.1145/3095713.3095748)
  • Gonçalo Mordido, João Magalhães, Sofia Cavaco, “Automatic organisation and quality analysis of user-generated content with audio fingerprinting,” in Proc. European Signal Processing Conference (EUSIPCO 2017), Kos, Greece, August 28 – September 2, 2017. (DOI: 10.5281/zenodo.1160238)
  • João Santos, Filipa Peleja, Flávio Martins, João Magalhães, “Improving Cold-Start Recommendations with Social-Media Trends and Reputations,” in Proc. Intelligent Data Analysis 2017. (DOI: 10.1007/978-3-319-68765-0_25)
  • André Mourão, João Magalhães, “Balanced Search Space Partitioning for Distributed Media Redundant Indexing,” in Proc. ACM Intl Conference in Multimedia Retrieval 2017: 142-149. (DOI: 10.1145/3078971.3078999)

2016

  • I. Zupancic, E. Izquierdo, M. Naccari, M. Mrak, “Two-Pass Rate Control for UHDTV Delivery with HEVC,” in Proc. 32nd Picture Coding Symposium (PCS 2016), Nuremberg, Germany, 4-7 December 2016. (DOI: 10.5281/zenodo.164863)
  • N. Stefanakis and A. Mouchtaris, “Capturing and reproduction of a crowded sound scene using a circular microphone array,” in Proc. European Signal Processing Conference (EUSIPCO 2016), Budapest, Hungary, August 29 – September 2, 2016, pp. 1673-1677. (DOI: 10.1109/EUSIPCO.2016.7760533)
  • Saverio Blasi, Matteo Naccari, Rajitha Weerakkody, John Funnell, Marta Mrak, “The open-source Turing codec: towards fast, flexible and parallel HEVC encoding,” in Proc. International Broadcasting Convention Conference (IBC 2016), 8-12 September 2016. (DOI:  10.1049/ibc.2016.0038 )
  • I. Zupancic, M. Naccari, M. Mrak, E. Izquierdo, “Studying Rate Control Methods for UHDTV Delivery Using HEVC,” in Proc. 58th International Symposium (ELMAR-2016), Zadar, Croatia, 12–14 September 2016. (DOI: 10.1109/ELMAR.2016.7731752)
  • Flávio Martins, João Magalhães, Jamie Callan, “Barbara Made the News: Mining the Behavior of Crowds for Time-Aware Learning to Rank,” in Proc. 9th ACM International Conference on Web Search and Data Mining (WSDM) 2016, San Francisco, USA, February 22-25, 2016. (DOI: 10.1145/2835776.2835825)