petek, 20. februar 2009 Seminar MARA

V ponedeljek, 23.2.2009, bosta ob 16. uri v mali predavalnici Fakultete za matematiko, naravoslovje in informacijske tehnologije Univerze na Primorskem, Glagoljaška 8, Koper predavanji v okviru skupnega SEMINARJA ZA MATEMATICNE IN RAČUNALNIŠKE ZNANOSTI Oddelka za matematiko in računalništvo UP FAMNIT, Oddelka za matematiko in računalništvo UP PINT, Oddelka za matematiko in računalništvo UP PEF ter Oddelkov za matematiko in teoretično računalništvo IMFM.

Dnevni red:

16:00 -- 17:00

Predavatelj: Jernej Vičič

Naslov: On the Role of Statistical Methods in Machine Translation

Abstract

Machine translation is mainstream in today's MT research. Nevertheless there are predominantly rule-based MT systems in development, especially for translation between more or less related languages. This paper summarizes recent research in MT among Slavic languages and discusses the role of statistical modules in the system's architecture. The authors argue that statistical methods should be postponed as far as possible in the module chain since once used, they introduce noise into intermediate results which rule-based methods are unable to cope with. On the other hand it is inevitable to use some auxiliary statistical modules to achieve state-of-the-art translation quality, such as a ranker based on a language model of the target language. //Statistical methods are mostly used to cope with ambiguous intermediate results, leaving out such methods can lead to an explosion of intermediate data that cannot be coped with. The authors present a set of possible solutions to this problem.

17:00 -- 18.00

Speaker: Cui Zhang

Title: Tetravalent one-regular graphs of order $4p2$

Abstract: A graph is one-regular if its automorphism group acts regularly on the set of its arcs. In this talk a recent classification of tetravalent one-regular graphs of order $4p2$, where $p$ is a prime, will be presented.