On Sat, 2015-02-28 at 17:11 +0000, Matthias Huck wrote: > On Sat, 2015-02-28 at 16:45 +0000, Hieu Hoang wrote: > > i've never seen the phrase-based n-best extraction explicitly > > described. There was a paper on directed graph enumeration (I forget > > which) that was helpful t me when I was implementing it. > > > Maybe this? > > Hart, P., Nilsson, N., and Raphael, B., "A Formal Basis for the > Heuristic Determination of Minimum Cost Paths," IEEE Trans. Syst. > Science and Cybernetics, SSC-4(2):100-107, 1968. > > http://ai.stanford.edu/~nilsson/OnlinePubs-Nils/PublishedPapers/astar.pdf
And here's a paper from 2002 that describes the application of A* for n-best list extraction from word graphs in statistical machine translation (Section 4.3 & Table 1): N. Ueffing, F. J. Och, and H. Ney. Generation of Word Graphs in Statistical Machine Translation. In Proc. of the Conference on Empirical Methods for Natural Language Processing, pages 156-163, Philadelphia, PA, USA, July 2002. https://www-i6.informatik.rwth-aachen.de/publications/download/443/UeffingN.OchF.J.NeyH.--GenerationofWordGraphsinStatisticalMachineTranslation--2002.ps > > > > > However, it's a fairly simple dynamic programming algorithm > > > > > > The scfg-based extraction is different. I think it's based on 1 of > > Liang Huang's paper, however, Phil can tell you more. > > > > > > It was formerly based on the same algorithm as pb, but it was found > > out to be incorrect and missing some paths > > > > Hieu Hoang > > Research Associate (until March 2015) > > > > ** searching for interesting commercial MT position ** > > > > University of Edinburgh > > http://www.hoang.co.uk/hieu > > > > > > > > On 25 February 2015 at 13:08, Lane Schwartz <dowob...@gmail.com> > > wrote: > > Is there a particular paper that describes the current > > technique(s) > > used for n-best list extraction within Moses? > > > > Thanks, > > Lane > > _______________________________________________ > > Moses-support mailing list > > Moses-support@mit.edu > > http://mailman.mit.edu/mailman/listinfo/moses-support > > > > > > _______________________________________________ > > Moses-support mailing list > > Moses-support@mit.edu > > http://mailman.mit.edu/mailman/listinfo/moses-support > > The University of Edinburgh is a charitable body, registered in > > Scotland, with registration number SC005336. > > > -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. _______________________________________________ Moses-support mailing list Moses-support@mit.edu http://mailman.mit.edu/mailman/listinfo/moses-support
