1,601 research outputs found
Atmospheric Profile Imprint in Firewall Ablation Coefficient
A general formula which expresses the distance along the meteoric fireball trajectory 1 as a function of t is discussed. Differential equations which include the motion and ablation of a single nonfragmenting meteor body are presented. The importance of the atmospheric density profile in the meteor formula is emphasized
An augmented three-pass system combination framework: DCU combination system for WMT 2010
This paper describes the augmented threepass
system combination framework of
the Dublin City University (DCU) MT
group for the WMT 2010 system combination
task. The basic three-pass framework
includes building individual confusion
networks (CNs), a super network, and
a modified Minimum Bayes-risk (mCon-
MBR) decoder. The augmented parts for
WMT2010 tasks include 1) a rescoring
component which is used to re-rank the
N-best lists generated from the individual
CNs and the super network, 2) a new hypothesis
alignment metric â TERp â that
is used to carry out English-targeted hypothesis
alignment, and 3) more different
backbone-based CNs which are employed
to increase the diversity of the
mConMBR decoding phase. We took
part in the combination tasks of Englishto-
Czech and French-to-English. Experimental
results show that our proposed
combination framework achieved 2.17 absolute
points (13.36 relative points) and
1.52 absolute points (5.37 relative points)
in terms of BLEU score on English-to-
Czech and French-to-English tasks respectively
than the best single system. We
also achieved better performance on human
evaluation
Towards a user-friendly webservice architecture for statistical machine translation in the PANACEA project
This paper presents a webservice architecture for Statistical Machine Translation aimed at non-technical users. A workďŹow editor allows a user to combine different
webservices using a graphical user interface. In the current state of this project, the webservices have been implemented
for a range of sentential and sub-sentential aligners. The advantage of a common interface and a common data format allows the user to build workďŹows exchanging different aligners
An extensive empirical study of collocation extraction methods
This paper presents a status quo of an ongoing research study of collocations â an essential linguistic phenomenon having a wide spectrum of applications in the field of natural language processing. The core of the work is an empirical evaluation of a comprehensive list of automatic collocation extraction methods using precision-recall measures and a proposal of a new approach integrating multiple basic methods and statistical classification. We demonstrate that combining multiple independent techniques leads to a significant performance improvement in comparisonwith individualbasic methods. 1 Introduction an
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