Angélica González

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This paper presents an algorithm to detect and recognize the information contained in road panels. The aim of this work is to complement the functionality of a traffic signposting inspection system based on computer vision, which is able to collect data related to the maintenance state of traffic signs and panels automatically. In this context, not only a(More)
Species interactions play key roles in linking the responses of populations, communities, and ecosystems to environmental change. For instance, species interactions are an important determinant of the complexity of changes in trophic biomass with variation in resources. Water resources are a major driver of terrestrial ecology and climate change is expected(More)
Clustering is a branch of multivariate analysis that is used to create groups of data. While there are currently a variety of techniques that are used for creating clusters, many require defining additional information, including the actual number of clusters, before they can be carried out. The case study of this research presents a novel neural network(More)
This work presents a system for automatically evaluating the interaction that exists between the atmosphere and the ocean’s surface. Monitoring and evaluating the ocean’s carbon exchange process is a function that requires working with a great amount of data: satellite images and in situ vessel’s data. The system presented in this study focuses on(More)
Ecological processes that determine the abundance of species within ecological communities vary across space and time. These scale-dependent processes are especially important when they affect key members of a community, such as ecosystem engineers that create shelter and food resources for other species. Yet, few studies have examined the suite of(More)
Computer vision systems used on road maintenance, either related to signs or to the road itself, are playing a major role in many countries because of the higher investment on public works of this kind. These systems are able to collect a wide range of information automatically and quickly, with the aim of improving road safety. In this context, the(More)
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This paper investigates the large and diverse discounts in UK open offers and placings. Large discounts are a substantial cost to shareholders who do not buy new shares. The existing literature mainly examines US firm-commitment offers and private placements, but UK open offers and placings differ from both types of US offer. The paper presents evidence(More)