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SUMMARY:Generating appropriate referring expressions in news summaries - A
 dvaith Siddharthan\, University of Cambridge
DTSTART:20061201T120000Z
DTEND:20061201T130000Z
UID:TALK5576@talks.cam.ac.uk
CONTACT:NLIP Seminars
DESCRIPTION:I formalise the trade-off between describing entities and even
 ts within \nthe space constraints of a summary. Summarising ten 400-500 wo
 rd news \nreports in 100 words involves heavy information compression. Imp
 ortant \nevents need to be summarised\, while at the same time\, enough ba
 ckground \ninformation needs to be provided about the protagonists to ensu
 re that the \nreader can relate them to the story. I present a theory of h
 ow much \ndescriptions can be compressed based on a theory of cognitive st
 atus that \nclassifies references and referents as discourse new/discourse
  old\, hearer \nnew/hearer old and major character/minor character.\n\n(Jo
 int work with Ani Nenkova and Kathleen McKeown)
LOCATION:SW01 Computer Laboratory
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