3135083 documents found, page 313185 of 313509

A framework to develop meta web interfaces

Web interfaces are used nowadays for virtually every kind of computer application. The proliferation of web interfaces created the need to collect and analyze data on how users interact with them. Many web applications used for this purpose rely on what can be called a meta web interface. Meta web interfaces are used for different purposes but they share a set of common features: a web interface based on the su...

Advanced experiments with an Erbium doped fiber laser

This communication describes an optical hands-on fiber laser experiment aimed at advanced college courses. Optical amplifiers and laser sources represent very important optical devices in numerous applications ranging from telecommunications to medicine. The study of advanced photonics experiments is particularly relevant at undergraduate and master level. This paper discusses the implementation of an optical f...

Optimization of Electrical Distribution Network Operation based on EPSO

This paper presents a new and efficient methodology for voltage control and network reconfiguration of distribution networks using fuzzy rules, EPSO and graph theory. A simpler representation of the network is built through a graph, were all the network loops are identified, both closed and open loops. This information is incorporated into the EPSO operators to create feasible solutions for the topological prob...

Compressive Sensing Based Face Detection without Explicit Image Reconstruction ...

The novel theory of compressive sensing takes advantage of the sparsity or compressibility of a signal in a specific domain allowing the assessment of its full representation from fewer measurements. In this work we tailored the concept of compressive sensing to assess the intrinsic discriminative capability of this method to distinguish human faces from objects. Afterwards we enrolled through a feature selecti...

A Binary Translation Framework for Automated Hardware Generation

Crime Prediction Using Regression and Resources Optimization

Violent crime is a well known social problem affecting both the quality of life and the economical development of a society. Its prediction is therefore an important asset for law enforcement agencies, since due to budget constraints, the optimization of resources is of extreme importance. In this work, we tackle both aspects: prediction and optimization. We propose to predict violent crime using regression and...

Cascaded change detection for foreground segmentation

The extraction of relevant objects (foreground) from a background is an important first step in many applications. We propose a technique that tackles this problem using a cascade of change detection tests, including noise-induced, illumination variation and structural changes. An objective comparison of pixel-wise modellingmethods is first presented. Given its best relation performance/complexity, the mixture ...

FEUP at TREC 2017 OpenSearch Track Graph-Based Models for Entity-Oriented

On Understanding Contextual Changes of Failures

Modelo de apoio à gestão da pescaria de bivalves com ganchorra no Algarve basea...