Contribution au vocabulaire

Ajout de nouveaux noms propres au vocabulaire d'un système de transcription en utilisant un corpus diachronique

Proper names are usually keys to understand the information contained in a document. Our work focuses on increasing the vocabulary size of a speech transcription system by automatically retrieving proper names from contemporary diachronic text corpus. We assume that some proper names appear in documents relating to the same time period and in similar lexical contexts. We proposed methods that d...

Contribution au test des circuits intégrés logiques

Identify bottom contribution in non-photonic electron spectra and v2 from Au+Au collisions at RHIC

We present a study on the spectra and elliptic flow v2 for heavy flavor (charm and bottom) decayed electrons provided the relative contributions of charm and bottom hadrons from the PYTHIA calculations. We made a simultaneous fit to both measured non-photonic electron spectra and v2 distributions. The results suggest that the bottom contribution is not dominant for electron pT < 5 GeV/c in the ...

Contribution au calcul sur GPU: considérations arithmétiques et architecturales

Optimization of computation goes through joint management of hardware and software.This fact is reinforced when addressing the area of multicore architectures where the parametersto be considered are more numerous than on a conventional superscalar architecture. Thesearchitectures offer a wide variety of computational unit, representation format, memory hierarchyand data transfe...

Observation of Au + Au → Au + Au + ρ 0 and Au + Au → Au ∗ + Au ∗ + ρ 0 with STAR

We report the first observation of the reactions + ρ 0 with the STAR detector. The ρ are produced at small perpendicular momentum, as expected if they couple coherently to both nuclei. We discuss models of vector meson production and the correlation with nuclear breakup, and present a fundamental test of quantum mechanics that is possible with the system.