• The Role of context in defining play

  Crowell, Ciera; Mora Guiard, Joan; Parés, Narcís, 1966- (ACM Association for Computer Machinery, 2018)

  When players enter into an interactive game setting, they undertake a process of discovery and subsequent distinguishing of the rules and goals which will prevail in the play context. However, this process of forming ...
• Recognizing musical entities in user-generated content

  Porcaro, Lorenzo; Saggion, Horacio (Computing Research Center (CIC-IPN), 2019)

  Recognizing Musical Entities is important for Music Information Retrieval (MIR) since it can improve the performance of several tasks such as music recommendation, genre classification or artist similarity. However, ...
• Variations between perceptions of interpersonal distance in virtual environments for autism

  Crowell, Ciera; Parés, Narcís, 1966- (ACM Association for Computer Machinery, 2018)

  Interpersonal distance is defined as the area which we choose to keep between ourselves and others, revealed through observation and cultural components. Although previous studies have suggested the possibility of alterations ...
• Analysis of spherical isotropic noise fields with an A-Format tetrahedral microphone

  Stefanakis, Nikolaos (Acoustical Society of America, 2019)

  Several applications in spatial audio signal processing benefit from the knowledge of the diffuseness of the sound field. In this paper, several experiments are performed to determine the response of a tetrahedral microphone ...
• Mindful engineers in sustainable engineering

  Basart i Muñoz, Josep M.; Farrús, Mireia; Serra, Montse (Institute of Electrical and Electronics Engineers (IEEE), 2019)

  According to the Encyclopadia Britannica, the establishment of the Royal Society of London for Improving Natural Knowledge (Royal Society), the "oldest national scientific society in the world," was on November 28, 1660. ...
• Transformando lo inmutable: acciones de reforma y salvaguarda en la ópera de Beijing durante el siglo XX y primera década del siglo XXI

  Caro Repetto, Rafael (Universitat Autònoma de Barcelona. Grupo de Investigación Inter Asia. Centro de Estudios e Investigación sobre Asia Oriental, 2012)

  Con el objetivo de evaluar las principales tendencias que afectan a las producciones contemporáneas de ópera de Beijing, el presente artículo estudiará los procesos por los cuales a lo largo del siglo XX y la primera década ...
• Supporting online collaborative design for teacher professional development

  Marín, Victoria I.; Asensio-Pérez, Juan I.; Villagrá-Sobrino, Sara L.; Hernández Leo, Davinia; García-Sastre, Sara (Taylor & Francis, 2018)

  This article describes a study of online collaborative design in the context of teacher professional development. Twenty-five teachers from different Spanish universities participated in the online course. The aim was to ...
• Prosodic phrase alignment for machine dubbing

  Öktem, Alp; Farrús, Mireia; Bonafonte, Antonio (International Speech Communication Association (ISCA), 2019)

  Dubbing is a type of audiovisual translation where dialogues are translated and enacted so that they give the impression that the media is in the target language. It requires a careful alignment of dubbed recordings ...
• Transferring knowledge from discourse to arguments: a case study with scientific abstracts

  Accuosto, Pablo; Saggion, Horacio (ACL (Association for Computational Linguistics), 2019)

  In this work we propose to leverage resources available with discourse-level annotations to facilitate the identification of argumentative components and relations in scientific texts, which has been recognized as a ...
• Concept-level design analytics for blended courses

  Albó, Laia; Barria-Pineda, Jordan; Brusilovsky, Peter; Hernández Leo, Davinia (Springer, 2019)

  Although many efforts are being made to provide educators with dashboards and tools to understand student behaviors within specific technological environments (learning analytics), there is a lack of work in supporting ...
• PyToBI: a toolkit for ToBI labeling under Python

  Domínguez Bajo, Mónica; Rohrer, Patrick Louis; Soler-Company, Juan (International Speech Communication Association (ISCA), 2019)

  PyToBI is introduced as a user-friendly toolkit for the automatic annotation of intonation contours using the Tones and Breaks Indexes convention, known as ToBI. Index Terms: speech prosody, ToBI, automatic annotation, speech ...
• A Model for evaluating popularity and semantic information variations in radio listening sessions

  Porcaro, Lorenzo; Gómez Gutiérrez, Emilia, 1975- (CEUR Workshop Proceedings, 2019)

  Listening to music radios is an activity that since the 20th century is part of the cultural habits for people all over the world. While in the case of analog radios DJs are in charge of selecting the music to be ...
• CCA2-secure threshold broadcast encryption with shorter ciphertexts

  Daza, Vanesa; Herranz, Javier; Morillo, Paz; Ràfols, Carla (Springer, 2007)

  In a threshold broadcast encryption scheme, a sender chooses (ad-hoc) a set of n receivers and a threshold t, and then encrypts a message by using the public keys of all the receivers, in such a way that the original ...
• On dynamic distribution of private keys over MANETs

  Daza, Vanesa; Morillo, Paz; Ràfols, Carla (Elsevier, 2007)

  Identity-Based cryptography has been proposed in mobile ad-hoc networks (MANETs) to provide security. However, the figure of the Private Key Generator (PKG) is not adequate in the MANET setting, since it may not be ...
• 'Ad-hoc' threshold broadcast encryption with shorter ciphertexts

  Daza, Vanesa; Herranz, Javier; Morillo, Paz; Ràfols, Carla (Elsevier, 2008)

  In a threshold broadcast encryption scheme, a sender chooses (ad-hoc) a set of n receivers and a threshold t, and then encrypts a message by using the public keys of all the receivers, in such a way that the original plaintext ...
• The Security of all bits using list decoding

  Morillo, Paz; Ràfols, Carla (Springer, 2009)

  The relation between list decoding and hard-core predicates has provided a clean and easy methodology to prove the hardness of certain predicates. So far this methodology has only been used to prove that the O(log logN) ...
• Constant size ciphertexts in threshold attribute-based encryption

  Herranz, Javier; Laguillaumie, Fabien; Ràfols, Carla (Springer, 2010)

  Attribute-based cryptography has emerged in the last years as a promising primitive for digital security. For instance, it provides good solutions to the problem of anonymous access control. In a ciphertext- policy ...
• Relations between semantic security and anonymity in identity-based encryption

  Herranz, Javier; Laguillaumie, Fabien; Ràfols, Carla (Elsevier, 2011)

  Semantic security and anonymity are the two main properties that an identity-based encryption scheme can satisfy. Such properties can be de ned in either an adaptive or a selective scenario, which di er on the moment ...
• Short attribute-based signatures for threshold predicates

  Herranz, Javier; Laguillaumie, Fabien; Libert, Benoît; Ràfols, Carla (Springer, 2012)

  Attribute-based cryptography is a natural solution for fine- grained access control with respect to security policies. In the case of attribute-based signatures (ABS), users obtain from an authority their secret keys ...
• Attribute-based encryption schemes with constant-size ciphertexts

  Attrapadung, Nuttapong; Herranz, Javier; Laguillaumie, Fabien; Libert, Benoît; De Panafieu, Elie; Ràfols, Carla (Elsevier, 2012)

  Attribute-based encryption (ABE), as introduced by Sahai and Waters, allows for fine- grained access control on encrypted data. In its key-policy flavor (the dual ciphertext-policy scenario proceeds the other way around), ...

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