BEGIN:VCALENDAR VERSION:2.0 PRODID:ILLC Website X-WR-TIMEZONE:Europe/Amsterdam BEGIN:VTIMEZONE TZID:Europe/Amsterdam X-LIC-LOCATION:Europe/Amsterdam BEGIN:DAYLIGHT TZOFFSETFROM:+0100 TZOFFSETTO:+0200 TZNAME:CEST DTSTART:19700329T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0200 TZOFFSETTO:+0100 TZNAME:CET DTSTART:19701025T030000 RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:/NewsandEvents/Archives/2008/newsitem/2428/13- August-2008-Computational-Linguistics-Seminar-Reut -Tsarfaty DTSTAMP:20080717T000000 SUMMARY:Computational Linguistics Seminar, Reut Ts arfaty ATTENDEE;ROLE=Speaker:Reut Tsarfaty DTSTART;TZID=Europe/Amsterdam:20080813T153000 DTEND;TZID=Europe/Amsterdam:20080813T000000 LOCATION:P3.27 DESCRIPTION:State-of-the-art statistical parsing m odels applied to free word-order languages tend to underperform compared to, e.g., parsing English. Constituency-based models often fail to capture ge neralizations that cannot be stated in structural terms, and dependency-based models employ a ~singl e-head~ assumption that often breaks in the face o f multiple exponence. In this paper we suggest tha t the position of a constituent is a form manifest ation of its grammatical function, one among vario us possible means of realization. We develop the R elational-Realizational approach to parsing in whi ch we untangle the projection of grammatical funct ions and their means of realization to allow for p hrase-structure variability and morphological-synt actic interaction. We empirically demonstrate the application of our approach to parsing Modern Hebr ew, obtaining 7% error reduction from previously r eported results. For more information, see http ://www.illc.uva.nl/LaCo/CLS/ or http://staff.scien ce.uva.nl/~rtsarfat/coling08.pdf X-ALT-DESC;FMTTYPE=text/html:\n
\n State-of-the-art statistical parsing models applie d to free word-order languages tend to underperfor m compared to, e.g., parsing English. Constituency -based models often fail to capture generalization s that cannot be stated in structural terms, and d ependency-based models employ a ~single-head~ assu mption that often breaks in the face of multiple e xponence. In this paper we suggest that the positi on of a constituent is a form manifestation of its grammatical function, one among various possible means of realization. We develop the Relational-Re alizational approach to parsing in which we untang le the projection of grammatical functions and the ir means of realization to allow for phrase-struct ure variability and morphological-syntactic intera ction. We empirically demonstrate the application of our approach to parsing Modern Hebrew, obtainin g 7% error reduction from previously reported resu lts.\n
\n \n\n For mor e information, see http://www.illc.uva.nl /LaCo/CLS/ or\n http://staff.science.uva.nl/~rtsarfat/coling08 .pdf\n
URL:/NewsandEvents/Archives/2008/newsitem/2428/13- August-2008-Computational-Linguistics-Seminar-Reut -Tsarfaty END:VEVENT END:VCALENDAR