Extension of HVS semantic parser by allowing left-right branching

Result code in IS VaVaI
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Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Extension of HVS semantic parser by allowing left-right branching
Original language description
The hidden vector state (HVS) parser is a popular method for semantic parsing. It is used in the language understanding module of the statistical based spoken dialog system. This paper presents an extension of the HVS semantic parser. It enables the parser to generate broader class of semantic trees. This modication can be used to improve the performance of the parser by generating not only the right-branching trees (like original HVS parser) but also limited left-branching trees and their combinations.The extension retains simplicity and properties of the original HVS parser. We tested the method on Czech human-human train timetable corpus. The modied HVS parser yields statistically signicant improvement. The accuracy of the system increased from 50.4% to 58.3% absolutely.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
2008 IEEE International Conference on Acoustics, Speech, and Signal Processing
ISBN
978-1-4244-1483-3
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
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Publisher name
IEEE
Place of publication
New York
Event location
Las Vegas, Nevada, U.S.A.
Event date
Apr 4, 2008
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000257456703232

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