52 research outputs found
Técnicas de compresión de imágenes hiperespectrales sobre hardware reconfigurable
Tesis de la Universidad Complutense de Madrid, Facultad de Informática, leĂda el 18-12-2020Sensors are nowadays in all aspects of human life. When possible, sensors are used remotely. This is less intrusive, avoids interferces in the measuring process, and more convenient for the scientist. One of the most recurrent concerns in the last decades has been sustainability of the planet, and how the changes it is facing can be monitored. Remote sensing of the earth has seen an explosion in activity, with satellites now being launched on a weekly basis to perform remote analysis of the earth, and planes surveying vast areas for closer analysis...Los sensores aparecen hoy en dĂa en todos los aspectos de nuestra vida. Cuando es posible, de manera remota. Esto es menos intrusivo, evita interferencias en el proceso de medida, y además facilita el trabajo cientĂfico. Una de las preocupaciones recurrentes en las Ăşltimas dĂ©cadas ha sido la sotenibilidad del planeta, y cĂłmo menitoirzar los cambios a los que se enfrenta. Los estudios remotos de la tierra han visto un gran crecimiento, con satĂ©lites lanzados semanalmente para analizar la superficie, y aviones sobrevolando grades áreas para análisis más precisos...Fac. de InformáticaTRUEunpu
Advances in Artificial Intelligence: Models, Optimization, and Machine Learning
The present book contains all the articles accepted and published in the Special Issue “Advances in Artificial Intelligence: Models, Optimization, and Machine Learning” of the MDPI Mathematics journal, which covers a wide range of topics connected to the theory and applications of artificial intelligence and its subfields. These topics include, among others, deep learning and classic machine learning algorithms, neural modelling, architectures and learning algorithms, biologically inspired optimization algorithms, algorithms for autonomous driving, probabilistic models and Bayesian reasoning, intelligent agents and multiagent systems. We hope that the scientific results presented in this book will serve as valuable sources of documentation and inspiration for anyone willing to pursue research in artificial intelligence, machine learning and their widespread applications
A Novel Approach for Implementing Worldwide Interoperability for Microwave Access for Video Surveillance
Video surveillance applications have experienced an increase in demand over the last decade. Surveillance
systems can easily be found in places such as commercial offices, banks and traffic intersections, parks and
recreational areas. Surveillance applications have the potential to be implemented on a WiMAX (Worldwide
Interoperability for Microwave Access) network. Moreover, WiMAX devices have been used widely in the
market and WiMAX-based video surveillance products have also been available. As a radio technology,
WiMAX is a wireless broadband system that offers greater capacity than WiFi networks and wider coverage
than cellular networks.
The acceptance of WiMAX in the market, the availability of WiMAX products and its technology excellence,
contribute to the possibility of implementing it for surveillance application. However, since WiMAX is designed
to accommodate various applications with different quality of service (QoS) requirements, dedicated surveillance
network implementation of WiMAX may not achieve optimum performance, as all Subscriber Stations (SSs)
generate the same QoS requirements.
In the medium access (MAC) layer, this thesis proposes a bandwidth allocation scheme that considers the QoS
uniformity of the traffic sources. The proposed bandwidth allocation scheme comprises a simplified bandwidth
allocation architecture, a packet-aware bandwidth request mechanism and packet-aware scheduling algorithms.
The simplified architecture maximizes resources in the Base Station (BS), deactivates unnecessary services and
minimizes the processing delay. The proposed bandwidth request mechanism reduces bandwidth grant and
transmission delays. The proposed scheduling algorithms prioritize bandwidth granting access to a request that
contains important packet(s). The proposed methods in the MAC layer are designed to be applied to existing
devices in the market, without the necessity to change hardware.
The transport protocol should be able to deliver video with sufficient quality while maintaining low delay
connectivity. The proposed transport layer protocol is therefore designed to improve the existing user datagram
protocol (UDP) performance by retransmitting packet loss selectively to increase the received video quality, and
utilizing MAC support to achieve low delay connectivity.
In order to overcome the limitations of the lower layers, this thesis employs a rateless code instead of transport
layer redundancy in the application layer. Moreover, this thesis proposes post-decoding error concealment
techniques as the last means to overcome packet loss.
To evaluate the performances of the proposed methods, simulations are carried out using NS-2 simulator on
Linux platform. The proposed methods are compared to existing works to measure their effectiveness. To
facilitate the implementation of the transport layer protocols in practical scenarios, UDP packet modification is
applied for each transport layer protocol.Indonesian Directorate General of Higher Education (DGHE/DIKTI
Design Space Exploration and Resource Management of Multi/Many-Core Systems
The increasing demand of processing a higher number of applications and related data on computing platforms has resulted in reliance on multi-/many-core chips as they facilitate parallel processing. However, there is a desire for these platforms to be energy-efficient and reliable, and they need to perform secure computations for the interest of the whole community. This book provides perspectives on the aforementioned aspects from leading researchers in terms of state-of-the-art contributions and upcoming trends
Belle II Technical Design Report
The Belle detector at the KEKB electron-positron collider has collected
almost 1 billion Y(4S) events in its decade of operation. Super-KEKB, an
upgrade of KEKB is under construction, to increase the luminosity by two orders
of magnitude during a three-year shutdown, with an ultimate goal of 8E35 /cm^2
/s luminosity. To exploit the increased luminosity, an upgrade of the Belle
detector has been proposed. A new international collaboration Belle-II, is
being formed. The Technical Design Report presents physics motivation, basic
methods of the accelerator upgrade, as well as key improvements of the
detector.Comment: Edited by: Z. Dole\v{z}al and S. Un
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