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c ○ SAIt 2008 Memorie della

We present constraints on the values of Ωm, n, σ8, obtained from measurements of the Xray luminosity function of galaxy clusters as compiled in EMSS, RDCS and BCS galaxy cluster samples. The values obtained Ωm = 0.25+0.15 −0.05, n = −1 +0.05 −0.05, and σ8 = 0.8 +0.1 −0.1 are in agreement with WMAP data. We then put constraints on the quoted parameters and the dark-energy equation-of-state param...

NUL System at QALab Tasks

This paper describes the submitted strategy and the methods of NUL team on NTCIR-11 QALab Center examination tasks. Our purpose of joining this task is to evaluate the entailment recognition systems which we made for RITE-VAL tasks. Our strategy is very primitive which directly convert the question to the entailment problem by simply matching the type of question answer pairs. Then, we solve th...

NUL System at NTCIR RITE-VAL Tasks

This paper describes the submitted strategy and the methods of NUL team on NTCIR-11 RITE-VAL[1] fact validation (FV) and system validation (SV) tasks. We started to follow the shallow approach by Tian et al[3]. Then, we improved the named entity recognition accuracy and transformed some variables by the cross validation score of training sets. Especially, in the FV tasks, we used Apache Solr as...

NUL System at QA Lab-2 Task

This paper describes our strategies and the methods of NUL team on NTCIR-12 QA Lab-2 Japanese National Center Test tasks. We mainly use three strategies with four solvers. First strategy, we use Pointwise Mutual Information (PMI) and search results ranking to calculate the score of choices. Second, we convert True-or-False question to virtual factoid question by removing named entity. Third, we...

Informatique et linguistique Extraits du cours de Jean Véronis