This thesis demonstrates how the use of a global context can improve the power of a local character recognizer. The global context considered is a computer tutor of high school algebra that observes a student working algebra problems on a…

Obtaining exact depth from binocular disparities is hard if camera calibration is needed. We will show that qualitative depth information can be obtained from stereo disparities with almost no computations and with no prior knowledge (or computation) of camera parameters.…

Morphological analysis requires knowledge of the stems, affixes, combnatory patterns, and spelling-change processes of a language. The computational difficulty of the task can be clarified by investigating the computational characteristics of specific models of morphologial processing. The use of finite-state…

The specific knowledge that can be found in web sites provides a source of information which should be used by language teachers and content teachers to teach students both subject matter and language at the same time. In this paper,…

Entre el método clásico y simbólico de desambiguación de sentidos (WSD) que utiliza representaciones semánticas profundas de oraciones y textos, y el método estadístico que utiliza información relativa a la co-ocurrencia de palabras, existe una tendencia reciente a usar métodos…

This is an electronic version of an article published in Mental Health and Substance Use, 1(2), pp.104-117. Mental Health and Substance Use is available online at: http://www.informaworld.com/smpp/title~db=all~content=t777186830., Background: Mutuality is a feature of many ‘self-help groups’ for people with mental…

This thesis investigates the use of Carrier-phase Differential GPS (CDGPS) in relative navigation filters for formation flying spacecraft. This work analyzes the relationship between the Extended Kalman Filter (EKF) design parameters and the resulting estimation accuracies, and in particular, the…

Recent advances in biology have afforded scientists with the knowledge that polysaccharides play an active role in modulating cellular activities. Glycosaminoglycans (GAGs) are one such family of polysaccharides that play a very important role in regulating the functions of numerous…

En el desarrollo de sistemas basados en la interacción, es necesario transcribir y analizar una gran cantidad de corpus. Este análisis es desarrollado a través de distintos niveles lingüísticos, entre los que se encuentra el nivel pragmático. Este trabajo presenta…

Integrate and fire processes are fundamental mechanisms causing excitable and oscillatory behavior. Van der Pol [Philos. Mag. (7) 2 (11) (1926) 978] studied oscillations caused by these processes, which he called,relaxation oscillations' and pointed out their relevance, not only to…