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Title: Information-based processing of Korean dialogue with reference to English
Author: Lee, Dong-Young
Awarding Body: University of Edinburgh
Current Institution: University of Edinburgh
Date of Award: 1998
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This thesis shows that making use of contextual information coming from an utterance and keeping track of information flow between utterances in dialogue are indispensable to the processing of dialogue. In English, the phenomenon of honorification does not occur, an honorific pronoun does not exist, and a pronoun is used instead of omitting a whole constituent. On the other hand, in Korean dialogue, every utterance indicates whether or not honorification occurs. In addition, an honorific pronoun may be used and a constituent such as the subject NP or the object NP is omitted when it can be recovered by context. We claim that in order to process Korean dialogue properly, we must systematically use contextual information such as the social status information about all the individuals involved in dialogue and information about dialogue participants (that is, the speaker and the addressee of utterances). It is possible to incorporate contextual information in the framework of Head-Driven Phrase Structure Grammar (HPSG) and thus we use that framework to deal with utterances occurring in dialogue. We construct the representation structure of dialogue by extending and modifying Discourse Representation Theory (DRT) and contextual information is included in the representation structure. We show that the occurrence of honorification is constrained by the relative order to the social status of the speaker, the addressee and the individuals mentioned in an utterance. We also show how to recover a missing constituent in an utterance, using both structural information and contextual information related to the utterance. When an honorific pronoun is used in a dialogue, we resolve it based on the information about social status obtained from the dialogue. We implement dialogue processing using Prolog. The utterances of a dialogue are processed by utilizing the Attribute Logic Engine (ALE) and grammar rules relevant to Korean. After an utterance is processed, the representation structure of the utterance is constructed on the basis of the pieces of information extracted from the processing result.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available