• Monte Carlo methods for the ferromagnetic potts model using factor graph duality

  Molkaraie, Mehdi; Gómez, Vicenç (Institute of Electrical and Electronics Engineers (IEEE), 2018)

  Normal factor graph duality offers new possibilities for Monte Carlo algorithms in graphical models. Specifically, we consider the problem of estimating the partition function of the ferromagnetic Ising and Potts models ...
• Twitter as a lifeline: human-annotated Twitter corpora for NLP of crisis-related messages

  Imran, Muhammad; Mitra, Prasenjit; Castillo, Carlos (LREC, 2016)

  Microblogging platforms such as Twitter provide active communication channels during mass convergence and emergency events such as earthquakes, typhoons. During the sudden onset of a crisis situation, affected people post ...
• Combining human computing and machine learning to make sense of big (aerial) data for disaster response

  Ofli, Ferda; Meier, Patrick; Imran, Muhammad; Castillo, Carlos; Tuia, Devis; Rey, Nicolas; Briant, Julien; Millet, Pauline; Reinhard, Friedrich; Parkan, Matthew; Joost, Stéphane (Mary Ann Liebert, Inc, 2016)

  Aerial imagery captured via unmanned aerial vehicles (UAVs) is playing an increasingly important role in disaster response. Unlike satellite imagery, aerial imagery can be captured and processed within hours rather than ...
• The role of learning on bilinguals’ lexical architecture: beyond separated vs. integrated lexicons

  Costa, Albert, 1970-; Pickering, Martin J. (Cambridge University Press, 2018)

  How are the two lexicons of a bilingual represented and how do they interact during language processing? These questions are central to bilingualism and have been the topics of a large number of studies. Dijkstra, Wahl, ...
• On the bilingualism effect in task switching

  Branzi, Francesca Martina; Calabria, Marco; Gade, Miriam; Fuentes, Luis J.; Costa, Albert, 1970- (Cambridge University Press, 2018)

  In one task-switching experiment, we compared bilinguals and monolinguals to explore the reliability of the bilingualism effect on the n-2 repetition cost. In a second taskswitching experiment, we tested another group of ...
• Predicting the success of online petitions leveraging multidimensional time-series

  Proskurnia, Julia; Grabowicz, Przemyslaw; Kobayashi, Ryota; Castillo, Carlos; Cudré-Mauroux, Philippe; Aberer, Karl (ACM Association for Computer Machinery, 2017)

  Applying classical time-series analysis techniques to online content is challenging, as web data tends to have data quality issues and is often incomplete, noisy, or poorly aligned. In this paper, we tackle the problem of ...
• FA*IR: a fair top-k ranking algorithm

  Zehlike, Meike; Bonchi, Francesco; Castillo, Carlos; Hajian, Sara; Megahed, Mohamed; Baeza-Yates, Ricardo (ACM Association for Computer Machinery, 2017)

  In this work, we define and solve the Fair Top-k Ranking problem, in which we want to determine a subset of k candidates from a large pool of n>>k candidates, maximizing utility (i.e., select the “best” candidates) subject ...
• Ranking of social media alerts with workload bounds in emergency operation centers

  Purohit, Hemant; Castillo, Carlos; Imran, Muhammad; Pandey, Rahul (Institute of Electrical and Electronics Engineers (IEEE), 2018)

  xtensive research on social media usage during emergencies has shown its value to provide life-saving information, if a mechanism is in place to filter and prioritize messages. Existing ranking systems can provide a ...
• Optimal information transfer in the cortex through synchronization

  Buehlmann, Andres; Deco, Gustavo (Public Library of Science (PLoS), 2010)

  In recent experimental work it has been shown that neuronal interactions are modulated by neuronal synchronization and that this modulation depends on phase shifts in neuronal oscillations. This result suggests that ...
• Functional connectivity dynamics: modeling the switching behavior of the resting state

  Hansen, Enrique C.A.; Battaglia, Demian; Spiegler, Andreas; Deco, Gustavo; Jirsa, Viktor K. (Elsevier, 2015)

  Functional connectivity (FC) sheds light on the interactions between different brain regions. Besides basic research, it is clinically relevant for applications in Alzheimer's disease, schizophrenia, presurgical planning, ...
• Facilitating the manual annotation of sounds when using large taxonomies

  Favory, Xavier; Fonseca, Eduardo; Font, Frederic; Serra, Xavier (FRUCT, 2018)

  Properly annotated multimedia content is crucial for supporting advances in many Information Retrieval applications. It enables, for instance, the development of automatic tools for the annotation of large and diverse ...
• General-purpose tagging of Freesound audio with audioSet labels: task description, dataset, and baseline

  Fonseca, Eduardo; Plakal, Manoj; Font, Frederic; Ellis, Daniel P. W.; Favory, Xavier; Pons, Jordi; Serra, Xavier (Tampere University of Technology, 2018)

  This paper describes Task 2 of the DCASE 2018 Challenge, titled “General-purpose audio tagging of Freesound content with AudioSet labels”. This task was hosted on the Kaggle platform as “Freesound General-Purpose Audio ...
• Overcoming catastrophic forgetting with hard attention to the task

  Serrà, Joan; Surís, Dídac; Miron, Marius; Karatzoglou, Alexandros (Proceedings of Machine Learning Research, 2018)

  Catastrophic forgetting occurs when a neural network loses the information learned in a previous task after training on subsequent tasks. This problem remains a hurdle for artificial intelligence systems with sequential ...
• Automatic assessment of violin performance using dynamic time warping classification

  Giraldo, Sergio; Ortega, Ariadna; Perez, Alfonso; Ramírez, Rafael; Waddell, George; Williamon, Aaron (Institute of Electrical and Electronics Engineers (IEEE), 2018)

  The automatic assessment of music performance has become an area of special interest due to the increasing amount of technology-enhanced music learning systems. However, in most of these systems the assessment of the musical ...
• Characterization of myocardial motion patterns by unsupervised multiple Kernel learning

  Sánchez Martínez, Sergio; Duchateau, Nicolas Guillem; Erdei, Tamas; Fraser, Alan G.; Bijnens, Bart; Piella Fenoy, Gemma (Elsevier, 2017)

  We propose an independent objective method to characterize different patterns of functional responses to stress in the heart failure with preserved ejection fraction (HFPEF) syndrome by combining multiple temporally-aligned ...
• Multimodal image registration using Laplacian commutators

  Zimmer, Veronika Anne; González Ballester, Miguel Ángel, 1973-; Piella Fenoy, Gemma (Elsevier, 2019)

  The fusion and combination of images from multiple modalities is important in many applications. Typically, this process consists of the alignment of the images and the combination of the complementary information. In ...
• A Simple fusion of deep and shallow learning for acoustic scene classification

  Fonseca, Eduardo; Gong, Rong; Serra, Xavier (Cyprus University of Technology, 2018)

  In the past, Acoustic Scene Classification systems havebeen based on hand crafting audio features that are input toa classifier. Nowadays, the common trend is to adopt datadriven techniques, e.g., deep learning, where audio ...
• Makam recognition using extended pitch distribution features and multi-layer perceptrons

  Yesiler, Furkan; Bozkurt, Baris; Serra, Xavier (Cyprus University of Technology, 2018)

  This work focuses on automatic makam recognition taskfor Turkish makam music (TMM) using pitch distributionsthat are widely used in mode recognition tasks for variousmusic traditions. Here, we aim to improve the performanceof ...
• Early risk detection of anorexia on social media

  Ramíırez-Cifuentes, Diana; Mayans Yern, Marc; Freire, Ana (Springer, 2018)

  This paper proposes an approach for the early detection of anorexia nervosa (AN) on social media. We present a machine learning approach that processes the texts written by social media users. This method relies on a set ...
• Early prediction of Alzheimer's disease with non-local patch-based longitudinal descriptors

  Sanromà, Gerard; Andrea, Víctor; Benkarim, Oualid M.; Manjón, José V.; Coupé, Pierrick; Camara, Oscar; Piella Fenoy, Gemma; González Ballester, Miguel Ángel, 1973- (Springer, 2017)

  Alzheimer’s disease (AD) is characterized by a progressive decline in the cognitive functions accompanied by an atrophic process which can already be observed in the early stages using magnetic resonance images (MRI). ...

Mostra'n més