Now showing items 91-110 of 358

    Design, monitoring and performance evaluation of high capacity optical networks 

    Shariati, Mohammad Behnam (Date of defense: 2019-02-22)

    Internet traffic is expected to keep increasing exponentially due to the emergence of a vast number of innovative online services and applications. Optical networks, which are the cornerstone of the underlying Internet ...

    Designs for increasing reliability while reducing energy and increasing lifetime 

    Yalcin, Gulay (Date of defense: 2014-12-12)

    In the last decades, the computing technology experienced tremendous developments. For instance, transistors' feature size shrank to half at every two years as consistently from the first time Moore stated his law. ...

    Development and certification of mixed-criticality embedded systems based on probabilistic timing analysis 

    Agirre Troncoso, Irune (Date of defense: 2018-07-02)

    An increasing variety of emerging systems relentlessly replaces or augments the functionality of mechanical subsystems with embedded electronics. For quantity, complexity, and use, the safety of such subsystems is an ...

    Development and management of collective network and cloud computing infrastructures 

    Baig Viñas, Roger (Date of defense: 2019-11-18)

    In the search and development of more participatory models for infrastructure development and management, in this dissertation, we investigate models for the financing, deployment, and operation of network and cloud computing ...

    Development of cognitive workload models to detect driving impairment 

    Becerra Sánchez, Enriqueta Patricia (Date of defense: 2021-09-20)

    Driving a vehicle is a complex activity exposed to continuous changes such as speed limits and vehicular traffic. Drivers require a high degree of concentration when performing this activity, increasing the amount of mental ...

    Direct lookup and hash-based metadata placement : impact on architecture, performance and scalability of local and distributed file systems 

    Lensing, Paul Hermann (Date of defense: 2019-04-29)

    New challenges to file systems’ metadata performance are imposed by the continuously growing average number of files existing in file systems. The traditional component based lookup approach can become a performance ...

    Dissecting HTTP/2 and QUIC : measurement, evaluation and optimization 

    Manzoor, Jawad (Date of defense: 2019-06-13)

    The Internet is evolving from the perspective of both usage and connectivity. The meteoric rise of smartphones has not only facilitated connectivity for the masses, it has also increased their appetite for more responsive ...

    Distributed cloud-edge analytics and machine learning for transportation emissions estimation 

    Gutiérrez Torre, Alberto (Date of defense: 2022-11-22)

    (English) In recent years IoT and Smart Cities have become a popular paradigm of computing that is based on network-enabled devices connected providing different functionalities, from sensor measures to domotic actions. ...

    Distributed collaborative knowledge management for optical network 

    Tabatabaeimehr, Fatemehsadat (Date of defense: 2022-06-02)

    Network automation has been long time envisioned. In fact, the Telecommunications Management Network (TMN), defined by the International Telecommunication Union (ITU), is a hierarchy of management layers (network element, ...

    Distributed detection of anomalous internet sessions 

    García-Cervigon Gutiérrez, Manuel (Date of defense: 2012-11-02)

    Financial service providers are moving many services online reducing their costs and facilitating customers¿ interaction. Unfortunately criminals have quickly found several ways to avoid most security measures applied to ...

    DVFS power management in HPC systems 

    Etinski, Maja (Date of defense: 2012-06-01)

    Recent increase in performance of High Performance Computing (HPC) systems has been followed by even higher increase in power consumption. Power draw of modern supercomputers leads to very high operating costs and ...

    Dynamic load balancing for hybrid applications 

    Garcia Gasulla, Marta (Date of defense: 2017-04-18)

    It is well known that load imbalance is a major source of efficiency loss in HPC (High Performance Computing) environments. The load imbalance problem has very different sources, from static ones related to the data ...

    Dynamic Scheduling of Parallel Applications on Shared-Memory Multiprocessors 

    Martorell Bofill, Xavier (Date of defense: 1999-07-09)

    E-EON : Energy-Efficient and Optimized Networks for Hadoop 

    Fischer e Silva, Renan (Date of defense: 2018-05-03)

    Energy efficiency and performance improvements have been two of the major concerns of current Data Centers. With the advent of Big Data, more information is generated year after year, and even the most aggressive predictions ...

    Economic regulation for multi tenant infrastructures 

    León Gutiérrez, Xavier (Date of defense: 2013-07-05)

    Large scale computing infrastructures need scalable and effi cient resource allocation mechanisms to ful l the requirements of its participants and applications while the whole system is regulated to work e ciently. ...

    Edge-elements formulation of 3D CSEM in geophysics : a parallel approach 

    Castillo Reyes, Octavio (Date of defense: 2017-10-23)

    Electromagnetic methods (EM) are an invaluable research tool in geophysics whose relevance has increased rapidly in recent years due to its wide industrial adoption. In particular, the forward modelling of three-dimensional ...

    Efficient algorithms for passive network measurement 

    Sanjuàs Cuxart, Josep (Date of defense: 2012-03-23)

    Network monitoring has become a necessity to aid in the management and operation of large networks. Passive network monitoring consists of extracting metrics (or any information of interest) by analyzing the traffic that ...

    Efficient hardware acceleration of deep neural networks via arithmetic complexity reduction 

    Reggiani, Enrico (Date of defense: 2023-10-26)

    (English) Over the past decade, significant progresses in the field of artificial intelligence have led to remarkable advancements in a wide range of technologies. Deep learning, a subfield of machine learning centered ...

    Efficient hardware/software co-designed schemes for low-power processors 

    López Muñoz, Pedro (Date of defense: 2014-03-17)

    Nowadays, we are reaching a point where further improving single thread performance can only be done at the expenses of significantly increasing power consumption. Thus, multi-core chips have been adopted by the industry ...

    Efficient openMP over sequentially consistent distributed shared memory systems 

    Costa Prats, Juan José (Date of defense: 2011-07-20)

    Nowadays clusters are one of the most used platforms in High Performance Computing and most programmers use the Message Passing Interface (MPI) library to program their applications in these distributed platforms getting ...