Adaptive fragment designs to reduce the latency of web caching in content aggregation systems 

Guerrero Tomé, Carlos (Date of defense: 2012-05-14)

Mac-Phy Cross-Layer analysis and design of Mimo-Ofdm Wlans based on fast link adaptation 

Martorell Lliteras, Gabriel (Date of defense: 2013-07-10)

The latestWLAN standard, known as IEEE 802.11n, has notably increased the network capacity with respect to its predecessors thanks to the incorporation of the multipleinput multiple-output (MIMO) ...

An adaptive admission control and load balancing algorithm for a QoS-aware Web system 

Gilly de la Sierra-Llamazares, Katja (Date of defense: 2009-11-16)

The main objective of this thesis focuses on the design of an adaptive algorithm for admission control and content-aware load balancing for Web traffic. In order to set the context of this work, several ...

Analytical methods fort he study of color in digital images 

Petro Balaguer, Ana Belén (Date of defense: 2006-05-19)

La descripció qualitativa dels colors que composen una imatge digital és una tasca molt senzilla pel sistema visual humà. Per un ordinador aquesta tasca involucra una gran quantitat de qüestions i de ...

Privacy-protecting Systems for Electronic Commerce on Mobile Devices 

Isern Deyà, Andreu Pere (Date of defense: 2013-10-14)

Avui dia, estam assistint a un increment important en el coneixement i en la introducció de les Tecnologies de la Informació i les Comunicacions (TIC) en la societat. De cada dia més i més gent acull ...

Visualization of Affect in Faces based on Context Appraisal 

Arellano Tavara, Diana Di Lorenza (Date of defense: 2012-05-04)

Virtual Characters are more than avatars capable of expressing emotions and interact with the users. Virtual Characters should be seen as a very reliable representation of a human being, capable of ...

Fair exchange in e-commerce and certified e-mail, new scenarios and protocols 

Draper Gil, Gerard (Date of defense: 2013-07-22)

We are witnessing a steady growth in the use of Internet in the electronic commerce field. This rise is promoting the migration from traditional processes and applications (paper based) to an electronic ...

Scene modelling for vision-based interactive systems in rehabilitation contexts 

Moyà Alcover, Gabriel (Date of defense: 2016-09-22)

The aim of this thesis is to improve vision-based interaction in rehabilitation systems. We defined and evaluated a new method of modelling scenes in the RGBD space in order to generalize the use of ...

Cross-Layer Design for Quality of Service provisioning in AMC/ARQ-based wireless networks 

Ramis Bibiloni, Jaume (Date of defense: 2012-07-10)

In the last years, the explosive development of wireless services and applications has produced an unprecedented revolution in wireless communications systems. The impact of wireless fading channels ...

Appearance-based Loop Closure Detection and its Application to Topological Mapping and Image Mosaicing 

García Fidalgo, Emilio (Date of defense: 2016-09-12)

Mapping and localization are two essential processes in autonomous mobile robotics since they are the basis of other higher level and more complex tasks, such as obstacle avoidance or path planning. ...