The CLEAR Dependency


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The CLEAR style constituent to dependency conversion.

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The CLEAR Dependency

  1. 1. The CLEAR Dependency Stages Summer Meeting at ISI Martha Palmer, James Martin Jinho D. Choi, Shumin Wu, Wei-Te Chen University of Colorado Boulder August 2nd, 2012 choijd@colorado.eduThursday, August 2, 2012
  2. 2. CLEAR Dependency Format • Stanford dependency format - Provides rich dependency labels. - Does not consider information such as empty categories, function tags, secondary dependencies, etc. • CLEAR dependency format - Adapts the Stanford dependency format. - Remaps dependencies for empty categories. - Preserves function tags. - Preserves secondary dependencies. 2Thursday, August 2, 2012
  3. 3. Contents • CLEAR dependency labels • Remapping empty categories • Function tags • Secondary dependencies 3Thursday, August 2, 2012
  4. 4. Label Description Label Description ACOMP Adjectival complement NEG Negation modifier ADVCL Adverbial clause modifier NMOD∗ Modifier of nominal ADVMOD Adverbial modifier NN Noun compound modifier AGENT Agent NPADVMOD Noun phrase as ADVMOD AMOD Adjectival modifier NSUBJ Nominal subject APPOS Appositional modifier NSUBJPASS Nominal subject (passive) ATTR Attribute NUM Numeric modifier AUX Auxiliary NUMBER Number compound modifier AUXPASS Auxiliary (passive) OPRD∗ Object predicate CC Coordinating conjunction PARATAXIS Parataxis CCOMP Clausal complement PARTMOD Participial modifier COMPLM Complementizer PCOMP Complement of a preposition CONJ Conjunct POBJ Object of a preposition CSUBJ Clausal subject POSS Possession modifier CSUBJPASS Clausal subject (passive) POSSESSIVE Possessive modifier DEP Unclassified dependent PRECONJ Pre-correlative conjunction DET Determiner PREDET Predeterminer DOBJ Direct object PREP Prepositional modifier EXPL Expletive PRT Particle INFMOD Infinitival modifier PUNCT Punctuation INTJ∗∗ Interjection QUANTMOD Quantifier phrase modifier IOBJ Indirect object RCMOD Relative clause modifier MARK Marker ROOT Root META∗∗ Meta modifier XCOMP Open clausal complement Table 2.3: A list of the Clear reduction labels. Labels followed by ∗ are borrowed from the 93.65% error dependency of ∗∗ unclassified dependencies. CoNLL dependency approach. Labels followed by are newly introduced by the Clear dependency approach. 4Thursday, August 2, 2012
  5. 5. Contents • CLEAR dependency labels • Remapping empty categories - Wh-movement - Topicalization - Discontinuous constituent • Function tags • Secondary dependencies 5Thursday, August 2, 2012
  6. 6. Wh-Movement 6Thursday, August 2, 2012
  7. 7. Topicalization: Non-recursive 7Thursday, August 2, 2012
  8. 8. Topicalization: Recursive 8Thursday, August 2, 2012
  9. 9. Discontinuous Constituent 9Thursday, August 2, 2012
  10. 10. Contents • CLEAR dependency labels • Remapping empty categories • Function tags - Syntactic function tags - Semantic function tags • Secondary dependencies 10Thursday, August 2, 2012
  11. 11. typical Penn Treebank tags but used in some other Treebanks. A.1 Function tags Function Tags Syntactic roles ADV Adverbial PUT Locative complement of put CLF It-cleft PRD Non-VP predicate CLR Closely related constituent RED∗ Reduced auxiliary DTV Dative SBJ Surface subject LGS Logical subject in passive TPC Topicalization NOM Nominalization Semantic roles BNF Benefactive MNR Manner DIR Direction PRP Purpose or reason EXT Extent TMP Temporal LOC Locative VOC Vocative Text and speech categories ETC Et cetera SEZ Direct speech FRM∗ Formula TTL Title HLN Headline UNF Unfinished constituent IMP Imperative Table A.1: A list of function tags for English. 11Thursday, August 2, 2012
  12. 12. Syntactic Function Tags 12Thursday, August 2, 2012
  13. 13. Semantic Function Tags 13Thursday, August 2, 2012
  14. 14. Contents • CLEAR dependency labels • Remapping empty categories • Function tags • Secondary dependencies - Gapping - Referent - Right node raising - Open clausal subject 14Thursday, August 2, 2012
  15. 15. Gapping 15Thursday, August 2, 2012
  16. 16. Referent Referent dependencies are also provided in PropBank as LINK-SLC. 16Thursday, August 2, 2012
  17. 17. Right Node Raising 17Thursday, August 2, 2012
  18. 18. Open Clausal Subject: Raising 18Thursday, August 2, 2012
  19. 19. Open Clausal Subject: Control 19Thursday, August 2, 2012
  20. 20. Open Clausal Subject: ECM 20Thursday, August 2, 2012
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