This paper relates an experimentation of a collaborative e-learning system. In this kind of system, tracks arising from communication tools allow to build useful indicators for all system actors. We show how tracks are analyzed and how this analysis is useful for reengineering purposes.

We study the annotation of the Prague Dependency Treebank 2.0 (PDT 2.0) and assemble a list of requirements on a query language that would allow searching for and studying all linguistic phenomena annotated in the treebank. We propose an extension to the query language of an existing search tool Netgraph 1.0 and show that the extended query language satisfies the list of requirements. We demons...

1Department of Chemistry, Rutgers University, Camden, NJ, USA; Center for Computational and Integrative Biology, Rutgers University, Camden, NJ, USA 2Johns Hopkins Bloomberg School of Public Health, Center for Alternatives to Animal Testing (CAAT), Baltimore, MD, USA 3National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of En...

The chewing of betel nut is prevalent throughout the Asia-Pacific region, especially in the Pacific subregion. Consumed for its stimulant properties, there is concern over this habit’s association with negative health consequences. The present study examines the case of Honiara in Solomon Islands where the prevalence of betel nut consumption has increased in recent years, especially among schoo...

A semi-automatic syntactic annotation of a part of the Czech National Corpus in the Prague Dependency Treebank (PDT) has among its aims the possibility to check the theoretical approach chosen (Functional Generative Description, see [2]). While the first phases of the annotation of PDT, i.e. the morphemic representations and the dependency trees on an intermediate analytic level, i.e. analytic ...

“They are like old soldiers,” said Leo and once again I marvelled at his knack for distilling the essence in just a few words. We were sitting high up in the stadium, Leo Khachiyan, my wife Markéta, and I. Three people with a university education and not one of us had the sense to bring along a hip flask. So now we were shivering in the cold October evening while down below Mick and Keith swagg...

Recognition of second language speech is still a challenging task even for state-of-the-art automatic speech recognition (ASR) systems. Considering that second language speech usually includes less fluent pronunciation and mispronunciation even when it is grammatically correct, we propose a novel phonetic decision tree (PDT) method considering integrated acoustic and linguistic features to deri...