Reliable measures of speaker positions are needed for computational perception of human activities taking place in a smart-room environment. In this work, we investigate the effect of talkers head orientation on the accuracy of acoustical source localization techniques and its relation with the talker directivity pattern and room reverberation. Two different representative speaker localization ...

Creating a software product line from a legacy application is a difficult task. We propose a tool that helps automating tedious tasks of refactoring legacy applications into features and frees the developer from the burden of performing laborious routine implementations.

A description of complete normal varieties with lower dimensional torus action has been given in [AHS08], generalizing the theory of toric varieties. Considering the case where the acting torus T has codimension one, we describe T -invariant Weil and Cartier divisors and provide formulae for calculating global sections, intersection numbers, and Euler characteristics. As an application, we use ...

This PhD dissertation was written by Ibon Saratxaga and supervised by Inma Hernáez. It was defended at the University of the Basque Country the 5 of March 2012. The committee members were Prof. José Manuel Pardo (UPM), Prof. Asunción Moreno (UPC), Dr..Eduardo Rodríguez Banga (UVigo), Dr. Eva Navas (UPV/EHU) and Dr. Daniel Erro (UPV/EHU).The dissertation was awarded an “apto cum laude” qualif...

Many software engineers try very hard not to use the word “reuse” because many methods and tools intended to promote reuse have failed to meet expectations. As soon as they learn that a software product line involves reuse they turn away quickly. The “attached process” that accompanies every core asset in a product line makes software reuse effective instead of frustrating. In this issue of Str...

Caisse des Dépôts et Consignations, CDC, France Institut National de Recherche en Informatique et Automatique, INRIA, France University of Twente, UT, The Netherlands Imperial College, IC, UK International University Bremen, IUB, Germany KTH Royal Institute of Technology, KTH, Sweden Oslo University College, HIO, Norway Universidat Politecnica de Catalunya, UPC, Spain University of Federal Arme...

The enormous popularity of mobile devices in the society has motivated the development of mobile learning applications. In spite of the benefits with regard to teaching and training, the existing learning applications still have to address issues and challenges related to the development, reuse and architectural standardization. On the other hand, researches have been carried out to employ the ...

In this paper, the Acoustic Event Detection (AED) system developed at the UPC is described, and its results in the CLEAR evaluations carried out in March 2007 are reported. The system uses a set of features composed of frequency-filtered band energies and perceptual features, and it is based on SVM classifiers and multi-microphone decision fusion. Also, the current evaluation setup and, in part...

The advent of cheap and ubiquitous wireless access has introduced a number of new connectivity paradigms. This paper investigates one of them, user-provided connectivity or UPC. In contrast to traditional infrastructure-based connectivity, e.g., connectivity through the up-front build-out of expensive base-stations, UPC realizes connectivity organically as users join and expand its coverage. Th...