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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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EL
| URI | http://purl.tuc.gr/dl/dias/218602D8-36D9-49B1-AD72-F229295EDB93 | - |
| Identifier | http://www.intelligence.tuc.gr/~petrakis/publications/InterSpeech14.pdf | - |
| Language | en | - |
| Extent | 5 pages | en |
| Title | Fusion of knowledge-based and data-driven approaches to grammar induction | en |
| Creator | Petrakis Evripidis | en |
| Creator | Πετρακης Ευριπιδης | el |
| Creator | Potamianos Alexandros | en |
| Creator | Ποταμιανος Αλεξανδρος | el |
| Creator | Cimiano, Philipp 1977- | en |
| Creator | Walter Sebastian | en |
| Creator | Iosif Ilias | en |
| Creator | Ιωσηφ Ηλιας | el |
| Creator | Unger Christina | en |
| Creator | Georgiladakis Spyridon | en |
| Creator | Γεωργιλαδακης Σπυριδων | el |
| Publisher | Chinese and Oriental Languages Information Processing Society | en |
| Content Summary | Using different sources of information for grammar induction results in grammars that vary in coverage and precision. Fusing such grammars with a strategy that exploits their strengths while minimizing their weaknesses is expected to produce grammars with superior performance. We focus on the fusion of grammars produced using a knowledge-based approach using lexicalized ontologies and a data-driven approach using semantic similarity clustering. We propose various algorithms for finding the mapping between the (non-terminal) rules generated by each grammar induction algorithm, followed by rule fusion. Three fusion approaches are investigated: early, mid and late fusion. Results show that late fusion provides the best relative F-measure performance improvement by 20%. | en |
| Type of Item | Πλήρης Δημοσίευση σε Συνέδριο | el |
| Type of Item | Conference Full Paper | en |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-10-28 | - |
| Date of Publication | 2014 | - |
| Subject | Spoken dialogue systems | en |
| Subject | Corpus-based grammar induction | en |
| Subject | Ontology-based grammar induction | en |
| Subject | Grammar fusion | en |
| Bibliographic Citation | S. Georgiladakis, Ch. Unger, E. Iosif, S. Walter, Ph. Cimiano, E. Petrakis and A. Potamianos, "Fusion of knowledge-based and data-driven approaches to grammar induction," presented at 15th Annual Conference of the International Speech Communication Association, Singapore, 2014. | en |
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