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Semantic Annotation in SALSA

SALSA The Sa arbrücken L exical S emantics A nnotation & Acquisition Project Aljoscha Burchardt, Katrin Erk, Anette Frank, Andrea Kowalski, Sebastian Pado, Manfred Pinkal. Semantic Annotation in SALSA. Manual semantic annotation of

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Semantic Annotation in SALSA

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  1. SALSAThe Saarbrücken Lexical Semantics Annotation & Acquisition Project Aljoscha Burchardt, Katrin Erk, Anette Frank, Andrea Kowalski, Sebastian Pado,Manfred Pinkal

  2. Semantic Annotation in SALSA • Manual semantic annotation of • 0.8 million words of syntactically annotated German newspaper text (TIGER Corpus, Releases 1, 2) • with frames and frame elements (Berkeley FrameNet Database), staying as close as possible to the Berkeley FrameNet database

  3. SALSA: What's special? • SALSA is about German • Cross-lingual divergencies?

  4. Cross-lingual Divergencies • Convincing cross-lingual portability results (ED) in general • Adaptation necessary because of • Inappropriate granularity of distinctions between FEs • Missing FEs • (Rare cases of) inappropriate granularity of frames

  5. SALSA: What's special? • SALSA is about German • Cross-lingual divergencies? • Corpus-driven lexicon development through exhaustive full-text annotation • Difficult cases • Incompleteness of Berkeley FrameNet

  6. Difficult cases • Metaphors • Support Verb Constructions • Idioms

  7. Difficult phenomena: Some Figures

  8. SALSA corpus: Release I • Total size of 20.000 annotated instances • Consistent annotation through different verification steps • All occurrences/readings of > 400 German verbal predicates (different frequency bands) • Scheduled for Summer 2006

  9. The SALTO Annotation Tool

  10. SALSA II: Automatic Annotation and Acquisition • Fred, Rosy, and Shalmaneser: A tool-chain for shallow semantic analysis  Talk by Katrin and Sebastian

  11. SALSA II: Automation • Fred, Rosy, and Shalmaneser: A tool-chain for shallow semantic analysis  Talk by Katrin and Sebastian • The Detour System (through WordNet to FrameNet)  Talk by Anette and Al

  12. Fred & Rosy Fred, Detour & Rosy

  13. SALSAII: Automation • Fred, Rosy, and Shalmaneser: A tool-chain for shallow semantic analysis  Talk by Katrin and Sebastian • The Detour System (through WordNet to FrameNet)  Talk by Anette and Al • Cross-lingual projection of frame-semantic information  Katrin and Sebastian

  14. Cross-lingual Projection

  15. SALSAII: Automation & Application • Fred, Rosy, and Shalmaneser: A tool-chain for shallow semantic analysis  Talk by Katrin and Sebastian • The Detour System (through WordNet to FrameNet)  Talk by Anette and Al • Cross-lingual projection of frame-semantic information  Katrin and Sebastian • Textual Entailment (RTE)  Anette and Al

  16. h: Aki Kaurismäki directed a film. t: In 1983, Aki Kaurismäki directed his first full-time feature.

  17. Grammatically related h: Aki Kaurismäki directed a film. WordNet related t: In 1983, Aki Kaurismäki directed his first full-time feature.

  18. SALSA: Future Work • Bottstrapping frame information by data expansion techniques • Linking lexical semantic resourcs with upper-model ontologies • Analysis of non-compositional phenomena • A worked-out semantic lexicon • Application to textual entailment

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