• Annual Conference of KIPS
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• 2002.11a
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• pp.607-610
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• 2002

패턴에 기반한 자동번역 시스템에 있어서, 번역률을 결정하는 가장 중요한 요소는 패턴의 양과 질이다. 필요한 대량의 패턴을 단기에 구축하기 위해서 패턴 정보 기술상의 잉여성을 줄일 필요가 있다. '하다' 동사는 한국어에서 가장 빈번하게 사용되는 동사 중의 하나로서, 'X를 하다'와 'X하다'의 2가지 구문 구조를 갖는다. 본 논문에서는 동사구 패턴에 기반한 한중 자동 번역 시스템에서 'X를 하다'와 'X하다' 구문간의 상관성을 이용하여 두 구문이 'X하다' 동사에 대한 동사구 패턴을 공유하도록 함으로써 동사구 패턴 구축 시에 정보의 중복 기술을 피하고, 패턴의 적용 범위를 넓힌다. 패턴의 공유로 인해 발생하는 대역문 생성 시의 문제점은, 'X를 하다' 구문에 대응하는 중국어 대역 형태 별로 분류하여 해결함으로써 패턴을 공유하면서도 번역의 질은 유지시킬 수 있는 방법을 제안한다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.451-453
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• 2005

본 논문에서는 한국어에 있어 '에, 로'를 격표지로 하는 부사격에 대한 의미역 결정 모델에 대해 다루고 있다. 의미역 결정은 의미 분석의 핵심 과정 중 하나이고 자연언어처리에서 해결해야 할 중요한 문제이다. 본 논문은 기존 연구와 언어학 논저를 참고해서 의미역 결정에 유용한 자질들을 정리하였고 SVM을 이용하여 의미역 결정 모델을 구축하였다. 또한 기존 연구와 차별적으로 기능동사 구문의 처리와 지배소 개념의 유사도 보정 방법을 사용하여 보다 견고한 모델을 만들 수 있었다. 성능 평가 결과 개념(Concept)만을 사용한 기본 모델에 비해서 평균 $9\%$의 정확률 향상을 보였다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.475-477
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• 2005

본 연구는 신문기사나 백과사전 등의 문서에서 빈번히 발생하는 동사 파생 접미사와 어미가 생략된 형태의 서술성 명사를 동사로 복원하는 방법에 대한 것으로 이러한 복원은 문장구조 분석에 영향을 미친다. 기존 연구는 간단한 규칙만을 사용하지만 규칙을 사용하는 방법은 재현률에서 성능 저하를 보이기 때문에 본 연구에서는 이러한 생략 형태를 구분하여 규칙과 통계 방법을 사용하여 각각 적합한 형태에 적용하였다. 본 연구의 접근 방법은 규칙 기반에 비해 약 $30\%$, 통계 기반에 비해 약 $8\%$의 성능 향상을 보여서 문장 구조 분석에서는 $3.6\%$의 성능 향상을 보였다.

• Language and Information
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• v.6 no.1
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• pp.105-121
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• 2002

This paper investigates the effect of semantic argument structure on the comprehension and production of sentences by observing the prosodic realizations of English secondary predications. Specifically, the goal of this study is to show how the theory of predication, argument structure, and focus semantically interact to account for similarities and differences between English resultative and depictive predications. To address this issue, production and comprehension tests were performed. In the fried focus domain (verb phrase), subjects were asked to utter and to comprehend ambiguous sentences in the context monologues. The experimental results were generally consistent with general linguistic analyses: In the resultative constructions, secondary subject NPs tend to be accented, as in other argument-head constructions, while in the depictive constructions, secondary predicates tend to have accents, as in other adjunct-head constructions.

• Language and Information
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• v.6 no.2
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• pp.57-82
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• 2002

This study explores the lexical-semantic structure of derived causative verbs in Korean based on Pustejovsky(1995)'s Generative Lexicon Theory (GL). Morphological causative verbs are derived from their root stems by affixing ‘-i, -hi, -li, -gi’ in Korean and the meanings of derived predicates are closely related to the meanings of their root verbs. In particular, the change of the ARGUMENT STRUCTURE by morphological derivation leads to the change of the EVENT STRUCTURE. The ARGUMENT STRUCTURES of derived causative verbs include a causer argument, which is added to the ARGUMENT STRUCTURE of their root verbs by means of the causative derivation. Their EVENT STRUCTURE has a headed process related to a causer and its result is the event which their root verbs denote. This approach can also suggest that the (in)directness of causative is dependent on is the semantics of its root verb.

• Language and Information
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• v.2 no.1
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• pp.157-176
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• 1998

This paper claims that beneficiary adjuncts are best analyzed as involving external predication in a version of grammatical framework called Head-driven Phrase Structure Grammar. This paper also claims that verbal catefories need to include the attribute INDEX among their semantic components in order to account for the external predication proposed in this paper. This paper distinguishes between recipient and beneficiary reles and assumes that the former is a semantic argument of a verb-type relation and that the latter is an adjunct which makes a semantic contribution as a modifier. This approach achives a unified analysis of modification phenomena of nominal and verbal categories and it can also accomodate Parson's(1990) idea that a verbal category denotes a set of events, not just an event.

• Language and Information
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• v.3 no.1
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• pp.1-20
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• 1999

The purpose of this paper is to expand Stowell (1993), Stowell (1995), Stowell (1996)'s syntactic analysis of tense in English. Stowell treats Tense as a dyadic predicate of temporal ordering which takes those two time-denoting phrases as its arguments. He further argues that those two morphemes 'resent' and 'past' are polarity-sensitive elements encoding an LF-scope relation with respect to true PAST tense. This paper proposes that English future 'will' should be treated as a true tense and that its future morpheme is an anti-PAST polarity item. It also provides a syntactic interpretation of a peculiar morphological aspect of English that it has no future form of the verb. To this end, Stowell's analysis is incorporated into the Minimalist program of Chomsky(1995). It is proposed that, unlike in other languages like French and Spanish, FUTURE in English is of an affix. This provides an intuitively correct description of why English verbs do not have a future form like other languages. The last but not least point which this paper will discuss is that Ogihara (1995a)'s claim that the referential theory of tensed sentences is inadequate is untenable.

• Language and Information
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• v.11 no.1
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• pp.77-96
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• 2007

This paper investigates syntactic variations in English such as Dative Alternation, Particle Inversion, and Object Postposition (Heavy NP Shift) within the framework of Optimality Theory, and shows that the same set of morphological, informational, and processing constraints affect all these variations. In particular, it shows that the variants that used to be regarded as ungrammatical are in fact used fairly often in reality, especially when processing or informational conditions are met, and therefore, grammatical judgment may not be always categorical but sometimes gradient. It is argued that the notion of distance in constraint ranking in stochastic OT can effectively explain the gradience and variability of grammaticality in the variation phenomena.

• Cross-Cultural Studies
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• v.22
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• pp.377-401
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• 2011

Major news organizations in Korea are often accused of intentionally conspiring to advance conservative agendas under the disguise of unbiased reporting. Critics suspect that headlines are frequently abused for a certain framing effect. The widespread use of direct quotation is cited as one area of the abuse in headlines. The present study is an attempt to determine whether the criticism is based on facts. We conducted two separate surveys. First, the headlines on three major Korean newspapers were compared with those on The New York Times, Washington Post, and The Times. Then, we collected from Korean and English speakers factivity judgements for the sentences containing a direct quotation. The results confirm previous studies that Korean newspapers engage in a heavy use of direct quotation in headlines. Moreover, the results partially confirm the popular perception that the common use of direct quotation is a recent phenomenon in Korea. Finally, the study finds that both groups of speakers consider direct quotations more truthful than factive sentences.

• Cross-Cultural Studies
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• v.37
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• pp.383-400
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• 2014

Synonym means that the conceptual meaning of the word is the same or similar while other meanings or function of language difference may exist. That is two or more identified names correspond with one sense and have the words with minor difference. Words with synonym relation are a set of same meaning but conceptual area or emotional color, language function can be identified. Therefore, the core research of synonym is the difference analysis and in general difference analysis is progress in the three aspects of Meaning, Pragmatic, and Semantic. However, the difference analysis is the most important. In this paper, the set of meaning item of synonym word 'Attack' is 'zheng', 'fa', 'tao', 'qin', 'xi'. We compare the meaning of five verbs and analyze the difference and characteristics.