Publications

Journals

G. Tavares, A. Mourão, J. Magalhães, “Crowdsourcing facial expressions for affective-interaction”, Computer Vision and Image Understanding 2016.

P. Borges, A. Mourão, J. Magalhães, “Large-scale high-dimensional indexing by sparse hashing with l0 approximation”, Multimedia Tools and Applications 2016.

A. Mourão, F. Martins, J. Magalhães, “Multimodal medical information retrieval with unsupervised rank fusion”, Computerized Medical Imaging and Graphics 2015.

F Peleja, P Dias, F Martins, J Magalhães, “A recommender system for the TV on the web: integrating unrated reviews and movie ratings,” Multimedia Systems, 1-16, 2013.

J. Magalhães, S. Rüger, “Using manual and auttomated annotations to search images by semantic similarity,” Multimedia Tools and Applications, January 2012.

J. Magalhães, S. Rüger, “An information-theoretic framework for semantic-multimedia indexing,” ACM Transactions on Information Systems, vol. 28, issue 4, November 2010.

A.-S. Dadzie, A. Chakravarthy, S. Chapman, J. Iria, V. Lanfranchi, J. Magalhães, D. Petrelli, F. Ciravegna, “Applying semantic Web technologies to knowledge sharing to aerospace engineering,” Journal of Intelligent Manufacturing, vol. 20, no. 5, pp. 611-623, October 2009.

J. Magalhães, F. Pereira, “Using MPEG standards for multimedia customization,” Signal Processing: Image Communication, vol. 19, no. 5, pp. 437 – 456, May 2004.

International conferences

2017

G. Mordido, J. Magalhães, S. Cavaco, “Automatic Organisation and Quality Analysis of User-Generated Content with Audio Fingerprinting”, EUSIPCO 2017

G. Mordido, J. Magalhães, S. Cavaco, “Automatic Organisation, Segmentation, and Filtering of User-Generated Audio Content”, MMSP 2017

R. Queiros, N. Correia, J. Magalhães, “Live Collaborative Social-Media Video Timelines”, CBMI 2017

A. Mourão, J. Magalhães, “Balanced Search Space Partitioning for Distributed Media Redundant Indexing”, ICMR 2017

R. Carrapiço, I. Guimarães, M. Grilo, S. Cavaco, J. Magalhães, “3D Facial Video Retrieval and Management for Decision Support in Speech and Language Therapy”, ICMR 2017

2016

M. Lopes, J. Magalhães, S. Cavaco, “A voice-controlled serious game for the sustained vowel exercise”, ACE 2016

M. Diogo, M. Eskenazi, J. Magalhães, S. Cavaco “Robust scoring of voice exercises in computer-based speech therapy systems” EUSIPCO 2016

A. Grossinho, I. Guimarães, J. Magalhães, S. Cavaco, “Robust phoneme recognition for a speech therapy environment” SeGAH 2016

F. Martins, J. Magalhães, J. Callan, “Jitter Search: A News-Based Real-Time Twitter Search Interface” ECIR 2016

F. Martins, J. Magalhães, J. Callan, “Barbara made the news: mining the behavior of crowds for time-aware learning to rank”, WSDM 2016

I. Arapakis, F. Peleja, B.B. Cambazoglu, J. Magalhães “Linguistic Benchmarks of Online News Article Quality”, ACL 2016

2015

F. Peleja, J. Magalhães “Learning text patterns to detect opinion targets”, IC3K 2015

F. Peleja, I. Arapakis, J. Magalhães, “Explanatory opinions: to whom or what is all the fuss about?”, ESSIR 2015

R. Carrapiço, A. Mourão, J. Magalhães, S. Cavaco, “A comparison of thermal image descriptors for face analysis”, EUSIPCO 2015

A. Mourão, J. Magalhães, “Scalable multimodal search with distributed indexing by sparse hashing”. ICMR 2015

P. Borges, A. Mourão, J. Magalhães, “High-dimensional indexing by sparse approximation”. ICMR 2015

F. Peleja, J. Magalhães, “Learning Sentiment Based Ranked-Lexicons for Opinion Retrieval”, ECIR 2015

2014

A. Grossinho, S. Cavaco, J. Magalhães. “An interactive toolset for speech therapy”. ACE 2014

P. Dias, J. Magalhães, “Multi-user Diverse Recommendations through Greedy Vertex-Angle Maximization”, IDA 2014

A. Mourão, P. Borges, N. Correia, J. Magalhães, “Sparse reconstruction of facial expressions with localized gabor moments”. EUSIPCO 2014

F. Peleja, J. Santos, J. Magalhães, “Ranking Linked-Entities in a Sentiment Graph”, IEEE/WIC/ACM Joint Conferences on WI/IAT 2014

F. Peleja, J. Santos, J. Magalhães, “Reputation analysis with a ranked sentiment-lexicon”, ACM SIGIR 2014

A. Mourão, F. Martins, J. Magalhães, “Inverse square rank fusion for multimodal search”, CBMI 2014.

2013

P. Dias, J. Magalhães, “Music recommendations for groups of users”, ACM ImmersiveMe Workshop, 2013

G. Tavares, A. Mourão, J. Magalhães, “Crowdsourcing for affective-interaction in computer games,” CrowdMM Workshop at ACM Conference on Multimedia, Barcelona, Spain, October 2013.

A. Mourão, J. Magalhães, “Competitive affective gaming: winning with a smile”. ACM Conference on Multimedia, Barcelona, Spain, October 2013.

A. Mourão, P. Borges, N. Correia, J. Magalhães, “Facial Expression Recognition by Sparse Reconstruction with Robust Features”. ICIAR 2013

B. Haslhofer, F. Martins, J. Magalhães: “Using SKOS vocabularies for improving web search” WWW 2013

F Martins, B Haslhofer, J Magalhães, “Query expansion using open web-based skos vocabularies” ACM SIGIR Workshop on Health Search and Discovery, 2013

2012

F. Peleja, P. Dias, J. Magalhães: “A Regularized Recommendation Algorithm with Probabilistic Sentiment-Ratings”. ICDM Workshops 2012: 701-708

F. Martins, F. Peleja, J. Magalhães, “SentiTVchat: sensing the mood of social-TV viewers,” EuroITV 2012: 161-164

J. Magalhães, S. Strover, T. Chambel, P. Viana, T. Andrade, L. Francisco-Revilla, F. Martins, N. Correia, “ImTV: Towards an Immersive TV experience,” 3rd International Workshop on Future Television at EuroITV 2012.

F. Martins, F. Peleja and J. Magalhães, “SentiTVChat: Real-time monitoring of Social-TV feedback,” EuroITV 2012, demo.

2011

B. Cardoso, J. Magalhães, “Google, Bing and a new perspective on ranking similarity,” ACM Conference on Information and Knowledge Management, Glasgow, UK, October 2011.

M. Teixeira, J. Magalhães, “Efficient indexing structures for fast media search and browsing,” International Workshop in Content-based Multimedia Indexing, Madrid, Spain, June 2011.

2010

D. Delgado, J. Magalhães, N. Correia, “Assisted news reading with story illustrations,” ACM Conference on Multimedia, Florence, Italy, October 2010.

D. Delgado, J. Magalhães, N. Correia, “Automated illustration of news stories,” IEEE Conference on Semantic Computing, Pittsburg, US, September 2010.

2009

J. Iria, J. Magalhães, “Exploiting cross-media correlations in the categorization of multimedia Web documents,” Int’l Joint Conference on Artificial Intelligence, Workshop on Cross-Media Information Access and Mining, Pasadena, CA, July 2009.

J. Magalhães, F. Ciravegna, J. Iria, “Web news indexing with a cross-media document-graph,” ACM Conference on Image and Video Retrieval, Santorini, Greece, July 2009.

2008

J. Magalhães, F. Ciravegna, S. Rüger, “Exploring multimedia in a keyword space,” ACM Multimedia, Vancouver, Canada, November 2008.

J. Magalhães, A. Chakravarthy, A.-S. Dadzie, L. Xia, J. Iria, M. Greenwood, D. Petrelli, F. Ciravegna “Large scale cross-media knowledge sharing and reuse,” Intl Conference on Content based multimedia indexing, London, UK, June 2008.

2007

J. Magalhães. S. Overell, S. Rüger, “Exploring image, text and geographic evidences in ImageCLEF2007,” ImageCLEF Workshop 2007, Budapest, Hungary, November 2007.

J. Iria, V. Uren, A. Lavelli, S. Blohm, A.-s. Dadzie, T. Franz, J. Magalhães, S. Nikolopoulos, C. Preisach, P. Slavazza, “Enhancing enterprise knowledge processes via cross-media extraction,” Knowledge capture conference, Whistler, BC, Canada, October 2007.

S. Overell, J. Magalhães, S. Rüger, “GIR experiments with Forostar at GeoCLEF2007,” GeoCLEF Workshop 2007, Budapest, Hungary, September 2007.

J. Magalhães, S. Overell, S. Rüger, “A semantic vector space for query by image example,” ACM SIGIR conference on research and development in information retrieval, Multimedia Information Retrieval Workshop, Amsterdam, The Netherlands, July 2007.

J. Magalhães, S. Rüger, “High-dimensional visual vocabularies for image retrieval,” ACM SIGIR conference on research and development in information retrieval, The Netherlands, July 2007.

J. Magalhães, S. Rüger, “Information-theoretic semantic multimedia indexing,” ACM Conference on Image and Video Retrieval, best-paper award, Amsterdam, The Netherlands, July 2007.

2006

S. Overell, J. Magalhães, A. Yavlinsky, S. Rüger, “Imperial College at TRECVID,” TRECVID Workshop 2006, Gaithersburg, USA, November 2006.

S. Overell, J. Magalhães, S. Rüger, “Place disambiguation with co-occurrence models,” GeoCLEF Workshop 2006, Alicante, Spain, September 2006.

J. Magalhães, S. Rüger, “Logistic regression of generic codebooks for semantic image retrieval,” International Conference on Image and Video Retrieval, Phoenix, AZ, USA, July 2006.

2005 and earlier

R. Jesus, J. Magalhães, A. Yavlinsky, S. Rüger, “Imperial College at TRECVID,” TRECVID Workshop 2005, Gaithersburg, USA, November 2005.

J. Magalhães, S. Rüger, “Mining multimedia salient concepts for incremental information extraction,” ACM SIGIR conference on research and development in information retrieval, Salvador, Brasil, August 2005.

D. Heesch, P. Howarth, J. Magalhães, A. May, M. Pickering, A. Yavlinsky, S. Rüger, “Video retrieval using search and browsing,” TRECVID Workshop 2004, pp 92-101, Gaithersburg, USA, November 2004.

J. Magalhães, A. David, “An end-to-end framework for mobile multimedia applications,” World Telecommunications Conference 2002, Paris, France, September 2002.

National conferences

F. Peleja, J. Magalhães “Opinions in User Reviews: An Evaluation of Sentiment Analysis Techniques”, EPIA 2013

N. Graça, J. Magalhães, “Descobrir os Flickr Diamonds Escondidos,” Conferência da Associação Nacional de Sistemas de Informação, Viseu, Portugal, Outubro 2009.

J. Magalhães, F. Pereira, “MPEG-7 based color temperature customization,” ConfTele2003, Aveiro, Portugal, July 2003.

J. Magalhães, F. Pereira, “A system for universal access to multimedia content based on the MPEG-7 standard,” ConfTele2003, Aveiro, Portugal, July 2003.

Technical reports

D. Semedo, J. Magalhães, “NovaSearch at ImageCLEFmed 2016 Subfigure Classification Task”, CLEF (Working Notes). 2016.

A. Mourão, F. Martins, J. Magalhães, “NovaSearch at TREC 2014 Clinical Decision Support Track”, TREC (Working Notes). 2014.

F. Martins, J. Magalhães, “NovaSearch at TREC 2014 Microblog Track: Reranking with Wikipedia Page Views”, TREC (Working Notes). 2014.

F. Martins, A. Mourão, J. Magalhães, “NovaSearch at TREC 2013 Microblog Track: Experiments with reranking using Wikipedia”, TREC (Working Notes). 2013.

A. Mourão, F. Martins, J. Magalhães, “NovaSearch at TREC 2013 Federated Web Search Track: Experiments with rank fusion”, TREC (Working Notes). 2013.

A. Mourão, F. Martins, J. Magalhães, “NovaSearch on Medical ImageCLEF 2013”, CLEF (Working Notes). 2013.

J. Magalhães, “Semantic multimedia information: mining, fusion and extraction,” MPhil to PhD transfer report, Imperial College London, May 2006.

Contributions to MPEG Standards

J. Magalhães, F. Pereira, on behalf of the Portuguese National Body, “Corrections and extensions to MPEG-7 coding formats,” 57th MPEG Meeting, Sydney, Australia, July 2001.

J. Magalhães, F. Pereira, “Enhacing user interaction in UMA applications,” 57th MPEG Meeting, Sydney, Australia, July 2001.

J. Magalhães, F. Pereira, “User environment characterization in UMA applications,” 55th MPEG Meeting, Pisa, Italy, January 2001.