Generating time series reference models based on event analysis

Creating a reference model that represents a given set of time series is a relevant problem as it can be applied to a wide range of tasks like diagnosis, decision support, fraud detection, etc. In some domains, like seismography or medicine, the relevant information contained in the time series is concentrated in short periods of time called events. In this paper, we propose a technique for generating time series reference models based on the analysis of the events they contain. The proposed technique has been applied to time series from two medical domains: Electroencephalography, a neurological procedure to record the electrical activity produced by the brain and Stabilometry, a branch of medicine studying balance-related functions in human beings

Two Different Approaches of Feature Extraction for Classifying the EEG Signals

The electroencephalograph (EEG) signal is one of the most widely used signals in the biomedicine field due to its rich information about human tasks. This research study describes a new approach based on i) build reference models from a set of time series, based on the analysis of the events that they contain, is suitable for domains where the relevant information is concentrated in specific regions of the time series, known as events. In order to deal with events, each event is characterized by a set of attributes. ii) Discrete wavelet transform to the EEG data in order to extract temporal information in the form of changes in the frequency domain over time- that is they are able to extract non-stationary signals embedded in the noisy background of the human brain. The performance of the model was evaluated in terms of training performance and classification accuracies and the results confirmed that the proposed scheme has potential in classifying the EEG signals

Modelling Stabilometric Time Series

Stabilometry is a branch of medicine that studies balance-related human functions. Stabilometric systems generate time series. The analysis of these time series using data mining techniques can be very useful for domain experts. In the field of stabilometry, as in many other domains, the key nuggets of information in a time series are concentrated within definite time periods known as events. In this paper, we propose a technique for creating reference models for stabilometric time series based on event analysis. After testing the technique on time series recorded by top-competition sportspeople, we conclude that stabilometric models can be used to classify individuals by their balance-related abilitie

Spatial spillovers in public expenditure on a municipal level in Spain

A key function of local governments is to provide a wide array of public services. The supply of these services has been found to create spatial spillovers among neighbouring municipalities. Although it is generally agreed that spillovers are present in models that explain government expenditures, their type—whether endogenous, exogenous or residual—and sign—whether positive or negative—remain ambiguous. In most cases, a subjective process is used to select the type of spatial regression model used in analysis, with mixed results. Per capita expenditures of ten subprogrammes (Security, Housing, Welfare, Environment, Social services, Employment promotion, Health, Education, Culture and Sport) are analysed for all Spanish municipalities with more than 5000 inhabitants in the 2010–2012 period. A Spatial Seemingly Unrelated Regression methodology in a panel framework is used to incorporate correlation between different subprogrammes and spatial dependence. Our results show that the three types of spatial effects are present. Furthermore, substantive dependence is positive in most cases, while negative residual dependence is observed in some.We gratefully acknowledge the contribution of three anonymous reviewers in helping us improve the quality of this paper. Prof. Fernando A. López , grateful for the financial support offered by the projects from Programa de Ayudas a Grupos de Excelencia de la Región de Murcia, Fundación Seneca (#19884-GERM-15) and Ministry of Economy and Competiveness (ECO2015-651758)

Legislación y normas técnicas de accesibilidad en tecnologías de la información y las comunicaciones

Dentro de los instrumentos que posee la sociedad para lograrla inclusión de todas las personas destacan la legislación y las normas técnicas. En este capítulo se recopilan actividades legislativas y de normalizaciones, tanto internacionales como nacionales para promover una sociedad de la información inclusiva para todos. Dentro de las acciones legislativas destacan la sección 508 del Acta de Rehabilitación de Estados Unidos, los planes eEuropa de la Unión Europea y las leyes españolas de Servicios de la Sociedad de la Información y de Comercio Electrónico, y de Igualdad de Oportunidades, No Discriminación y Accesibilidad Universal de las Personas con. Discapacidad. En cuanto a las actividades de normalización técnica, destacan las normas internacionales de accesibilidad al software de ISO y de accesibilidad web del Consorcio de la Web, así como las normas españolas de accesibilidad en informática: hardware, software y contenidos web

A Multi-Temporal Object-Based Image Analysis to Detect Long-Lived Shrub Cover Changes in Drylands

Climate change and human actions condition the spatial distribution and structure of vegetation, especially in drylands. In this context, object-based image analysis (OBIA) has been used to monitor changes in vegetation, but only a few studies have related them to anthropic pressure. In this study, we assessed changes in cover, number, and shape of Ziziphus lotus shrub individuals in a coastal groundwater-dependent ecosystem in SE Spain over a period of 60 years and related them to human actions in the area. In particular, we evaluated how sand mining, groundwater extraction, and the protection of the area affect shrubs. To do this, we developed an object-based methodology that allowed us to create accurate maps (overall accuracy up to 98%) of the vegetation patches and compare the cover changes in the individuals identified in them. These changes in shrub size and shape were related to soil loss, seawater intrusion, and legal protection of the area measured by average minimum distance (AMD) and average random distance (ARD) analysis. It was found that both sand mining and seawater intrusion had a negative effect on individuals; on the contrary, the protection of the area had a positive effect on the size of the individuals’ coverage. Our findings support the use of OBIA as a successful methodology for monitoring scattered vegetation patches in drylands, key to any monitoring program aimed at vegetation preservation

El Diablo en "Los Milagros de Nuestra Señora" de Gonzalo de Berceo

El objeto de este articulo es el análisis de la figura del Diablo en la obra cumbre de Berceo; a través de «Los Milagros» podemos conocer rasgos sobre sus características físicas y psíquicas, su forma de intervenir y su papel en la vida cotidiana y en el más allá, o la organización del infierno, con claros paralelismos con las instituciones medievales; asi, podemos estudiar la concepción que se tiene sobre el mismo en sus diferentes variantes popular o más teológica durante el periodo medieval, siendo el Diablo de Berceo un punto intermedio entre ambos. Al estudio de esos rasgos queda consagrado el presente artículo.The purpose of this article is the analysis of the Devil's figure in the masterpiece of Berceo; through «The Miracles» it is possible to know the features about his physical and psychical characteristics, the way he acts, his role in the everyday life and in the beyond, or the organization in Hell, with clear parallelisms with the medieval institutions; thus, we can study the idea about him from the different versions, popular or more theological, during the medieval period, being The Devil of Berceo the intermediate point between both. This article studies these features

Reseña Bibliográfica: "Hernández de Miguel, C. (2015). Los últimos españoles de Mauthausen. Barcelona: S.A. Ediciones B. 576 pp."

Es una reseña al reciente libro de C. Hernández de Miguel