http://hdl.handle.net/10016/2480 2013-05-23T23:03:49Z 2013-05-23T23:03:49Z Jiménez, Javier Revuelta, Pablo Moreno, Lourdes Iglesias, Ana http://hdl.handle.net/10016/16325 2013-03-05T08:09:26Z 2009-12-31T23:00:00Z

Title: Evaluating the use of speech technologies in the classroom: The APEINTA Project Author(s): Jiménez, Javier; Revuelta, Pablo; Moreno, Lourdes; Iglesias, Ana Abstract: APEINTA (Spanish acronym for Proposal Aiming for an Inclusive Education based on Assistive Technology) is a Spanish educational project that aims for inclusive education for every student of all abilities in and outside the classroom. The APEINTA project is focused in two main inclusive proposals: One In the classroom and the other one Outside the classroom. This paper is focused on a subjective evaluation of the In the classroom proposal, where Automatic Speech Recognition (ASR) and Text to Speech (TTS) technologies have been used in order to avoid communication barriers among teacher and students. The project has been evaluated during different classes in 3rd course of Computer Science degree at the Carlos III University of Madrid, and during a talk in the ACAPPS (Federation of Families and Deaf People of Catalonia) Congress. Description: Proceeding of: World Conference on Educational Multimedia, Hypermedia & Telecommunications, ED-MEDIA 2010

2009-12-31T23:00:00Z Iglesias, Ana Moreno, Lourdes Jiménez, Javier Revuelta, Pablo http://hdl.handle.net/10016/16311 2013-03-05T08:09:51Z 2010-07-13T22:00:00Z

Title: Evaluating the users' satisfaction using inclusive initiatives in two different environments: the university and a research conference Author(s): Iglesias, Ana; Moreno, Lourdes; Jiménez, Javier; Revuelta, Pablo Abstract: This paper presents evaluation results of the user’s satisfaction using the APEINTA project which main aim is to provide accessibility in education, in and out of the classroom. APEINTA is the Spanish acronym for “Aiming for an Inclusive Education based on Assistive Technology”. The APEINTA project is focused in two main inclusive proposals: first, it deals with eliminating hard of hearing students’ communication barriers in the classroom, providing them automatic real-time captioning and other mechanisms for making easy the communication with the teacher and others students; and second, it deals also in providing an accessible Web learning platform with accessible digital resources, so every student can access them in and out of the classroom.

2010-07-13T22:00:00Z Cuevas, Rubén Kryczka, Michal Cuevas, Ángel Kaune, Sebastian Guerrero, Carmen Rejaie, Reza http://hdl.handle.net/10016/10116 2011-07-13T22:53:46Z 2010-11-30T23:00:00Z

Title: Is Content Publishing in BitTorrent Altruistic or Profit-Driven? Author(s): Cuevas, Rubén; Kryczka, Michal; Cuevas, Ángel; Kaune, Sebastian; Guerrero, Carmen; Rejaie, Reza Abstract: BitTorrent is the most popular P2P content delivery application where individual users share various type of content with tens of thousands of other users. The growing popularity of BitTorrent is primarily due to the availability of valuable content without any cost for the consumers. However, apart from required resources, publishing (sharing) valuable (and often copyrighted) content has serious legal implications for user who publish the material (or publishers). This raises a question that whether (at least major) content publishers behave in an altruistic fashion or have other incentives such as financial. In this study, we identify the content publishers of more than 55k torrents in 2 major BitTorrent portals and examine their behavior. We demonstrate that a small fraction of publishers are responsible for 66% of published content and 75% of the downloads. Our investigations reveal that these major publishers respond to two different profiles. On one hand, antipiracy agencies and malicious publishers publish a large amount of fake files to protect copyrighted content and spread malware respectively. On the other hand, content publishing in BitTorrent is largely driven by companies with financial incentive. Therefore, if these companies lose their interest or are unable to publish content, BitTorrent traffic/portals may disappear or at least their associated traffic will significantly reduce. Description: 13 pages, 5 figures.-- ArXiv pre-print version available at: http://arxiv.org/abs/1007.2327; Contributed to: The 6th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT 2010, Philadelphia, PA, US, Nov 30th-Dec 3rd, 2010).; A talk on this paper was held at IMDEA Institute Madrid on Nov 23rd, 2010, http://bit.ly/f4epai

2010-11-30T23:00:00Z Vázquez, Carmen Montalvo, Julio Sánchez Montero, David Contreras Lallana, Pedro http://hdl.handle.net/10016/5896 2009-12-02T08:50:42Z 2007-06-11T22:00:00Z

Title: Self-referencing techniques in photonics sensors and multiplexing Author(s): Vázquez, Carmen; Montalvo, Julio; Sánchez Montero, David; Contreras Lallana, Pedro Abstract: A short review of self-reference techniques for remote fiber-optic intensity sensors and possible integration in multiplexing sensor networks is reported. Special focus is given to developments on radio-frequency (RF) source modulation techniques in interferometric configurations operating under incoherent regime. Experimental results on ring resonator (RR) configurations in transmission and reflection modes are included. Sensitivity, optimum insertion losses and robustness to intensity error fluctuations are reported. Sensors are interrogated at two sub carrier frequencies having a high rejection of interference from laser source intensity fluctuations and loss in the fiber lead. Dependence on source coherence is also analysed.Scalable self-referencing sensor networks with low insertion losses implemented in Coarse Wavelength Division Multiplexing (CWDM) technology are reported. The possibility of remote self-referenced measurements using a full-duplex fiber down-lead tenths of kilometers long with no need for optical amplification is also described. Fiber Bragg gratings (FBG) are used in the reflection configuration, thus increasing the sensitivity of the optical transducers. Low-cost off-the-shelf devices in CWDM and DWDM technology can be used to implement and scale the network.; Applications to specific photonic sensors are also envisaged and these techniques can be used in networks of microfiber loop resonators, being the microfiber loop the sensing element itself. Description: 11 pages, 8 figures.-- Contributed to: "Photonic Materials, Devices, and Applications II", ed. by Serpengüzel, Ali; Badenes, Gonçal; Righini, Giancarlo C. (Maspalomas, Spain, May 2, 2007).

2007-06-11T22:00:00Z