| Presentation | 2016-07-24 Computational modeling of hierarchical morphological structures Yohei Oseki, Alec Marantz, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Chomsky (1956, 1957) famously showed that sentences are organized as hierarchical structures, not linear strings, of words, concluding that syntax is (at least) "Context-Free Grammar (CFG)", not "Finite-State Grammar (FSG)". However, the question whether words are hierarchical structures of morphemes is controversial. In fact, not only has psycholinguistics, sentence processing in particular, assumed that words are axiomatic units, but also computational linguistics has claimed that morphology is FSG (Karttunen, 1983; Beesley & Karttunen, 2003; Roark & Sproat, 2007). In this paper, taking theoretical linguistics seriously, especially anti-lexicalist theories such as Distributed Morphology (Halle & Marantz, 1993) that morphemes are axiomatic units, we design the computational simulation experiment and ask whether morphology is CFG or FSG. The results of computational simulation strongly indicate that words are organized as hierarchical structures of morphemes and thus morphology is CFG (O'Donnel, 2011). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Morphology / Hierarchical structures / Computational modeling / Probabilistic Context-Free Grammar / n-gram |
| Paper # | TL2016-24 |
| Date of Issue | 2016-07-16 (TL) |
| Conference Information | |
| Committee | TL |
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| Conference Date | 2016/7/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Waseda Univ. (Nishi-Waseda Campus) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Human Language Processing and Learning |
| Chair | Masami Suzuki(KDDI R&D Labs.) |
| Vice Chair | Chiaki Kubomura(Yamano College of Aesthetics) |
| Secretary | Chiaki Kubomura(Ehime Univ.) |
| Assistant | Yasushi Tsubota(Kyoto Univ.) / Nobuyuki Jincho(Waseda Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Thought and Language |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Computational modeling of hierarchical morphological structures |
| Sub Title (in English) | |
| Keyword(1) | Morphology |
| Keyword(2) | Hierarchical structures |
| Keyword(3) | Computational modeling |
| Keyword(4) | Probabilistic Context-Free Grammar |
| Keyword(5) | n-gram |
| 1st Author's Name | Yohei Oseki |
| 1st Author's Affiliation | New York University(NYU) |
| 2nd Author's Name | Alec Marantz |
| 2nd Author's Affiliation | New York University(NYU) |
| Date | 2016-07-24 |
| Paper # | TL2016-24 |
| Volume (vol) | vol.116 |
| Number (no) | TL-159 |
| Page | pp.pp.65-69(TL), |
| #Pages | 5 |
| Date of Issue | 2016-07-16 (TL) |