Anaphora Resolution: Theory and Practice

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Spoken Dialogue is Messy!B.57:A.58:B.59:-- what are they actually telling us, and after,you know, what happened the other day with that,uh, C I A guy, you know --Uh-huh.-- how much is, what all the wars we’re gettinginto and all the, you know, the messes we’re --A.60: That we really don’t --B.61: -- we’re bombing us, ourselves with --A.62: -- that we don’t know about,B.63: -- right, is that true, or, you know, is it,A.64: How much,B.65: is (( )),A.66: of it’s true, and how much --B.67: really a threat,A.68: -- and how much of it is propaganda --B.69: Right.(sw3241)
Anaphora Resolution in Spoken Dialogue: Problems• center of attention in multi-party discourse;• utterances with no discourse entities;• abandoned or partial utterances (disfluencies, hesitations, interruptions,corrections);• determination of utterance units (no punctuation in spoken dialogue!);• low frequency of individual anaphora (NP-antecedents: 45.1%), but highfrequency of discourse-deictic (non-NP-antecedents: 22.6%) and vague(no antecedents: 32.3%) anaphora (data based on only three Switchboarddialogues).
Page 1 and 2: Anaphora Resolution:Theory and Prac
Page 3 and 4: Anaphora Resolution:orTheory and Pr
Page 5 and 6: A Few Questions• How do insights
Page 7 and 8: Never Look Back: An Alternative to
Page 9 and 10: NLB: The Algorithm1. If a referring
Page 11 and 12: NLB: Results• results obtained by
Page 13: Application: Anaphora Resolution in
Page 17 and 18: Types of Anaphora II: Discourse-Dei
Page 19 and 20: Types of Anaphora IV: Inferrable-Ev
Page 21 and 22: Proposal for Pronoun Resolution in
Page 23 and 24: I-Incompatible (*I)x is an anaphor
Page 25 and 26: The Algorithm: Switchboard sw311728
Page 27 and 28: Problems with These Approaches• o
Page 29 and 30: Application: Anaphora Resolution in
Page 31 and 32: NP-level FeaturesDocument level fea
Page 33 and 34: Different Results for Different Typ
Page 35 and 36: Low Amount of Training Data for Pro
Page 37 and 38: Application: Pronoun Resolution for
Page 39 and 40: Data: Corpus• 20 randomly chosen
Page 41 and 42: Data: Distribution of Agreement Fea
Page 43 and 44: Features• NP-level features;• c
Page 45 and 46: Coreference-level Features11. agree
Page 47 and 48: Experimental SetupAnnotated CorpusC
Page 49 and 50: Iterative Procedure(similar to wrap
Page 51 and 52: Results: 3ncorrect found total foun
Page 53 and 54: Results: Combinedcorrect found tota
Page 55 and 56: Conclusions: ML for Pronoun Resolut
Page 57 and 58: Conclusions IIHowever,• I used di
Page 59: Further Information (Papers, Annota

Anaphora Resolution: Theory and Practice

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