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

Retaules catalans del barroc tardà : algunes consideracions

La darrera renovació tipològica del retaule barroc a Catalunya, vers un barroc tardà o classicista, es troba relacionada amb les corrents europees igual que en altres indrets d'Espanya i es produeix també per els mateixos anys, vers 1720. Tractem també la contribució d'alguns escultors catalans en aquest canvi: Jacint Moretó, Pere Costa i Josep Sunyer i descartem que en aquest procés s'hi trobi un sol escultor, Pere Costa, així com la interpretació de les fonts que s'han utilitzat per recolzar-ho.The last renovation in the structure of the baroque altarpiece in Catalonia takes place around 1720. It evolves towards a late baroque or classicist style and it connects with the trends in Europe and elsewhere in Spain around the same date. We also study the contribution of Catalan sculptors such as Jacint Moretó, Pere Costa and Josep Sunyer to this change, because we don't think that Pere Costa is the only sculptor connected to this process. We therefore disagree with the interpretation ot the sources that supports this theory

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

Accesibilidad Web

Muchos sitios Web tienen un importante problema de accesibilidad, ya que su diseño no ha contemplado la gran diversidad funcional que presentan cada uno de los potenciales usuarios. Las directrices de accesibilidad del contenido Web, desarrolladas por el Consorcio de la Web, están compuestas por una serie de recomendaciones para que una página Web pueda utilizarse por cualquier persona. Uno de los principales problemas surge a la hora de comprobar la accesibilidad de una página Web, dado que, a pesar de la existencia de herramientas de revisión, no resulta viable realizar una validación completamente automática; para ello, se presenta la herramienta HERA para la revisión semiautomática de la accesibilidad a la Web