hi montse, there are two parts of PET that can in principle take advantage of a PCFG, but i would guess you are here interested in enabling the ‘chart pruning’ facilities (contributed by bart and yi), for better efficiency? from what i recall, the PCFG needs to be declared in the grammar settings, e.g. something like gm := tibidabo.pcfg. one should then see messages about the file being loaded into PET at start-up. to actually activate chart pruning, use the -cp command line option. it takes as an optional argument the limit to impose, where the default is 400 (passive edges per span), i believe. i believe there should even be an cpu definition for the SRG in the LOGON tree, with chart pruning on. please look for :srg/cp (or something similar, i am not fully on-line just now). assuming there is such a cpu, one can then ./parse --binary --srg/cp ... i would be curious to hear more about your experience with chart pruning. i think dan had maybe found that substantial spped-ups are available without much loss in accuracy. but also that chart pruning could make it a little more expensive to maintain treebanks across grammar revisions, owed to an additinal element of fluctuation about what top-500 trees are recorded in each profile. all best, oe On Thursday, October 13, 2011, Montserrat Marimon <<a href="mailto:montserrat.marimon@ub.edu">montserrat.marimon@ub.edu</a>> wrote: > Hola!!! > > does anyone know how to use the "file.pcfg"? I know how to create it, but I don't know how to use it with the "parse" command. > > Thanks, > > -- > Montserrat Marimon > Departament de Lingüística General > Facultat de Filologia - Universitat de Barcelona > Edifici Josep Carner, 5a planta > Gran Via de les Corts Catalanes, 585 > 08007 BARCELONA > tel.: + 34 93 4034695 > > <a href="http://stel.ub.edu/linguistica-ub/">http://stel.ub.edu/linguistica-ub/</a> > > -- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++ Universitetet i Oslo (IFI); Boks 1080 Blindern; 0316 Oslo; (+47) 2284 0125 +++ --- <a href="mailto:oe@ifi.uio.no" target="_blank">oe@ifi.uio.no</a>; <a href="mailto:stephan@oepen.net" target="_blank">stephan@oepen.net</a>; <a href="http://www.emmtee.net/oe/" target="_blank">http://www.emmtee.net/oe/</a> --- +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++