Dependency parsing is an important NLP task. A popular approach for dependency parsing is structured perceptron. Still, graph-based dependency parsing has the time complexity of O(n 3), and it suffers from slow training. To deal with this problem, we propose a parallel algorithm called parallel perceptron. The parallel algorithm can make full use of a multi-core computer which saves a lot of tr...

We present an e cient method for segmenting colour images which may be utilised in several robotic vision tasks It categorises pixels according to their percep tual colour by exploiting the chromaticity contained in the signal of a standard colour camera as an in dex into a pre clustered chromaticity plane A tech nique called perceptual colour grouping is introduced to prevent oversegmentation ...

Cette thèse aborde de façon générale les algorithmes d'apprentissage, avec un intérêt tout particulier pour les grandes bases de données. Après avoir for-mulé leprobì eme de l'apprentissage demanì ere mathématique, nous présentons plusieurs algorithmes d'apprentissage importants, en particulier les Multi Layer Perceptrons, les Mixture d'Experts ainsi que les Support Vector Machines. Nous consid...

În zilele noastre războiul se caracterizează printr-o intensitate uriașă a luptei, investiții mari în tehnologie militară care conduc la noi moduri de luptă și cresc vizibilitatea acestuia. Schimbarea strategică, socială culturală acestui mediu forțat guvernele armatele să adauge strategii luptă, inclusiv diplomația publică. Pe altă parte, publică însăși s-a schimbat într-un plină schimbare. Pr...

In this paper we report about the application of multilayer percep-trons to three important tasks in the control of rotary blood pumps, namely the estimation of left atrium pressure, and the indication of suction, as well as danger of suction, in the left atrium. Special focus is laid on the value of traditional techniques for statistical data analysis such as principal component analysis (PCA)...

Research on visuospatial attention indicates that a peripheral abrupt-onset cue at target position (valid condition) facilitates processing of the target, whereas a cue at another position interferes. This validity effect seems to be contingent on a similarity of the cue's color to the set of target colors (cf. J. Exp. Psychol.: Human Percep. Perform. 18 (1992) 1030). In Experiments 1-3, we con...