O recoñecemento de patróns máis alá da clasificación: Un marco abdutivo para a interpretación de series temporais

TítuloO recoñecemento de patróns máis alá da clasificación: Un marco abdutivo para a interpretación de series temporais
Autor/aTomás Teijeiro Campo
DirectoresPaulo Félix Lamas, Jesús María Rodríguez Presedo
TipoTese doutoral
Data de lectura28/04/2017
Lugar de lecturaUniversidade de Santiago de Compostela
Doutorado Doutorado europeo
AbstractTime series interpretation aims to provide an explanation of what is observed in terms of its underlying processes. The present work is based on the assumption that the common classification-based approaches to time series interpretation suffer from a set of inherent weaknesses, whose ultimate cause lies in the monotonic nature of the deductive reasoning paradigm. In this thesis we propose a new approach to this problem, based on the initial hypothesis that abductive reasoning properly accounts for the human ability to identify and characterize the patterns appearing in a time series. The result of this interpretation is a set of conjectures in the form of observations, organized into an abstraction hierarchy and explaining what has been observed. A knowledge-based framework and a set of algorithms for the interpretation task are provided, implementing a hypothesize-and-test cycle guided by an attentional mechanism. As a representative application domain, interpretation of the electrocardiogram allows us to highlight the strengths of the present approach in comparison with traditional classification-based approaches.