• Title/Summary/Keyword: Anaphora

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Centering Theory and Argument Deletion in Spoken Korean (센터링 이론과 대화체에서의 논항 생략 현상)

  • 홍민표
    • Korean Journal of Cognitive Science
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    • v.11 no.1
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    • pp.9-24
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    • 2000
  • This paper analyzes the distribution and classification of unrealized arguments of a predicate often called zero pronouns. in spoken Korean. Based on the transcript of a one-hour-Iong dialogue. recorded from public radio stations. I present the statistical data on argument ellipsis in Korean with respect to the frequency of zero ronouns as well as the nature of their antecedents. I go further to review some of the previous efforts to identify the discourse- theoretic functions of zero-pronouns in the framework of Centering Theory. and propose that the zero-pronouns in spoken Korean be divided into center-insensitive vs. center-sensitive classes. I also point out a couple of language-particular idiosyncrasies found in Korean, such as morpho-syntactic elements and encyclopaedic knowledge. that interact with center management in on-going discourse and often lead to difficulties in applying the centering rules and constraints to Korean.

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Distinguishing Referential Expression 'Geot' Using Decision Tree (결정 트리를 이용한 지시 표현 '것'의 구별)

  • Jo, Eun-Kyoung;Kim, Hark-Soo;Seo, Jung-Yun
    • Journal of KIISE:Software and Applications
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    • v.34 no.9
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    • pp.880-888
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    • 2007
  • Referential expression 'Geot' is often occurred in Korean dialogues. However, it has not been properly dealt with by the previous researchers of reference resolution, since it is not by itself the referential expression like pronoun and definite noun phrases, and it has never been discriminated from non-referring 'geot'. To resolve this problem, we establish a feature set which is based on the linguistic property of 'geot' and the discourse property of its text, and propose a method to identify referential 'geot' from non-referring 'geot' using decision tree. In the experiment, our system achieved the F-measures of 92.3% for non-referring geot and of 82.2% for referential geot and the total classification performance of 89.27%, and outperformed the classification system based on pattern rules.

A Resolution of Text Anaphora using Unidirection Chart Parsing in HPSG (중심어 주도 단방향 차트 파싱을 이용한 문맥 대용어 해결)

  • Kim, Jung-Hae;Jo, Jun-Mo;Lee, Sang-Kook;Lee, Sang-Jo
    • Annual Conference on Human and Language Technology
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    • 1996.10a
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    • pp.386-392
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    • 1996
  • 대용어(anaphor)는 한 문장이나 문장과 문장간에 같은 요소가 되풀이될 때 언어 사용의 경제성(language economy)을 위하여 잉여적 표현을 제거하는 방법으로, 좀 더 간략한 언어 표현으로 대치하여 쓰는 현상이다. 따라서 본 논문에서는 중심어 주도의 단방향 활성 차트 파싱을 이용하여 한국어 문장내에서 야기되는 문맥 대용어의 해결 방안에 대해 제안한다. 이는 자연어를 입력으로 하는 실용목적의 자연어처리 시스템 구축에 있어 필수적으로 요구되는 부분이다. 대용어 해결을 위해 먼저 전산학적인 대용어 정의를 내리고, 대용어와 선행어사이의 의미 분류 및 대용어 해결 과정에 필요한 처리 조건등을 설정하였다 또한 파서내에 대용어 처리를 위해 사전내 자질구조로 ANAPMAJ, ANAPMIN, PERSON, NUM, INDEX자질을 추가하였고, 대용어 해결을 위한 알고리즘을 제안하였으며, 기존에 개발된 HPSG 파서가 처리하는 모든 문장에서 야기된 문맥 대용을 해결하여 파서이후의 응용 시스템에서 이용할 수 있는 내적 표현을 보다 분명하게 형식화하였다.

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A Study on Optimal Design of Polymer Extruder Dies by CFD (CFD를 이용한 고분자 압출기 Dies 최적설계에 관한 연구)

  • Kim, Jea-Yoel;Choi, Jin-Ho
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.18 no.6
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    • pp.585-589
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    • 2009
  • Extruder is divided to greatly three part at extrusion process. First, by hopper(Hopper) second, barrel(Barrel) with Screw that is point of extruder and third that is raw material supply wealth extrusion into dies(DIES) Part that decide shape of do product greatly divide. Hopper is role that distribute in raw material supply wealth (Feeding zone) of Screw preserving raw material in state of high quality how at extrusion process, and make distributed raw material as Screw in barrel rotates and 3 stage and inflicting heat and pressure raw material melting(Melting) state. And raw material of melting state Screw's measuring stoker(Metering zone) whereabouts anaphora do and product is completed through pipe channel of dies. Dies that is the most important as Screw in extrusion is part that is last part of melting state process of raw material and causes huge effect in quality of product. If more than design of dies happens, manufacture itself of dies is hard, but there are a lot of amount of losses accordingly. In this research, make pipe channel that raw material of melting state flows in dies can present dies basic design method through flow analysis of ideal pipe channel using CFdesign.

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Pronoun Resolution in French Discourse by Korean-learners of French (한국인 프랑스어 학습자의 프랑스어 담화 이해와 대명사 해석 연구)

  • Ahn, Eui-Jeen;Song, Hyun-Joo;Kim, Min-Ju;Leem, Jai-Ho
    • Korean Journal of Cognitive Science
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    • v.25 no.4
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    • pp.417-433
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    • 2014
  • This research examined whether Korean-learners of French were sensitive to discourse structure in anaphoric pronoun resolution. In the experiments, participants read three-sentenced stories and made judgements about how the last sentence of each story makes sense in relation to previous two sentences on a 7-point Likert scale. The stories differed in whether the subject of the last sentence continued the subject of the preceding sentence, and whether the subject of the last sentence was mentioned with a pronoun or a proper noun. The results from French participants replicated the patterns shown in previous studies. In contrast, Koreans exhibited greater difficulty in interpreting pronoun-subject sentences than noun-subject sentences regardless of subject continuity. These findings are discussed within the context of developmental perspective, which suggests the processing of co-referential interpretation may interact with language proficiency.

Difference between Deixis and Anaphora in Aphasics (대명사의 화시적 기능과 조응적 기능: 실어증 환자를 중심으로)

  • 황유미;남기춘;강명윤
    • Proceedings of the Korean Society for Cognitive Science Conference
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    • 2000.05a
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    • pp.297-302
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    • 2000
  • 본 연구는 실어증 환자를 대상으로 화시적(deictic)인 대명사와 조응적(anaphoric)인 대명사의 처리를 살펴보기 위하여 실시되었다. 인칭 대명사와 지시대명사는 기능적인 측면에서 각각 화시적인 대명사와 조응적인 대명사로 구분될 수 있다. 화시적인 대명사란 발화상황에서 직접 가리킬 수 있는 대명사를 지칭하며 언어적 표현에 의존하기보다는 상황 의존적 대명사를 말하고 조응적인 대명사란 앞선 문맥에서 제시된 언어표현을 선행사로 되받는 대명사를 말한다. 인칭 대명사 가운데 1인칭('나')과 2인칭('너')은 화시적인 대명사로, 3인칭 '그'는 조응적인 대명사로, 3인칭 재귀대명사 '자기'는 화시와 조응의 혼합된 것으로 보았다. 지시 대명사의 경우 '이-/저-'는 화시적인 용법이 지배적인 것으로 분류하였고, '그-'는 조응의 '그-'와 화시의 '그-'l로 나누었다. 실험 1은 화시적인 1,2인칭 대명사 처리를 알아보기 위해서 실시되었다. 실험 1의 결과 3명의 브로카 환자와 qdua의 실명증 환자는 1,2인칭 대명사를 비교적 잘 처리하였다. 실험 2는 인칭대명사 가운데 화시적인 요소와 조응적 요소를 모두 가지고 있는 3인칭 재귀대명사 '자기'와 조응적 성격의 3인칭 대명사 '그'의 처리를 알아보기 위하여 실시되었다. 실험 2의 결과 3인칭 재귀사 '자기'의 경우 실험 1보다는 처리에 어려움을 보였으나 3인칭 대명사 '그'보다는 잘 처리하는 결과를 보였다. 실험 3은 지시 대명사 관련 실험으로서 화시적 용법의 '이-/그-/저-'와 조응적 용법의 '그-'의 처리를 살펴보기 위해 실시되었다. 실험 3의 결과 지시 대명사의 처리에 있어서 화시적 용법의 '이-/그-/저-'는 비교적 잘 처리하였으나 조응적 용법의 '그-'를 처리하는 데에는 어려움을 보였다. 실험 1,2,3에서 실어증 환자들은 화시적 대명사를 조응적 대명사보다 더 잘 처리하는 동일한 결과를 보였다. 이러한 실험 결과들은 실어증 환자들이 뇌손상으로 인해 문법적 언어처리에는 어려움을 보이지만 비언어적인, 세상 지식과 관련된 화시적 대명사의 처리는 가능할 것이라는 가설을 뒷받침 해준다. 또한 이러한 실험 결과를 통해 대명사의 기능적인 측면에서 화시와 조응의 처리가 구분되어 있음을 보여준다.

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Topic Continuity in Korea Narrative (한국 설화문에서의 화제표현의 연속성)

  • Hi-JaChong
    • Korean Journal of Cognitive Science
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    • v.2 no.2
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    • pp.405-428
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    • 1990
  • Language has a social function to communicate information. Linguists have gradually paid their attention to the function of language since the nineteen sixties, especially to the relationship of form, meaning and the function. The relationship could be more clearly grasped through disciyrse-based analysis than through sentence-based analysis. Many researches were centered on the discourse functional notion of topic. In the early 1970's the subject was defined as the grammatiocalized topic the topic as a discrete single constituent of the clause. In the late 1970's several lingusts including Givon suggerted that the topic was not an atomic, disctete entity, and that the clause could have more than one topic. The purpose of the present study is, following Givon, to study grammatical coding devices of topic and to measure the relative topic continuity/discontinuity of participant argu, ents in Korean narratives. By so doing, I would like to shed some light on effective ways of communicating information. The grammatical coding devices analyzed are the following eight structures: zero-anaphora, personal pronous, demonstrative pronouns, names, noun phrases following demonstratives, noun phrases following possessives, definite noun phrases and indefinite referentials. The narrative studied for the count was taken from the KoreanCIA chief's Testiomny:Revolution and Idol by Hyung Wook Kim. It was chosen because it was assumed that Kim's purpose in the novel was to tell a true story, which would not distort the natural use of language for literary effect. The measures taken in the analysis wre those of 'lookback', 'persistence', ambiguity'. The first of these, 'lookback', is a measure of the size of gap between the previous occurrence of a referent and its current occurence in the clause. The meausure of persistence, which is a measure of the speaker's topocal intent, reflects the topic's importance in the discourse. The third measure is a measure of ambiguity. This is necessary for assessing the disruptive effects that other topics within five previous clauses may have on topic identification. The more other topics are present within five previous clauses, the more difficult is the task of correct identification of a topic. The results of the present study show that the humanness of entities is the most powerful factior in topic continutiy in narrative discourse. The semantic roles of human arguments in narrative discourse tend to be agents or experiences. Since agents and experiences have high topicality in discourse, human entities clearly become clausal or discoursal topics. The results also show that the grammatical devices signal varying degrees of topic continuity discontinuity in continuous discourse. The more continuous a topic argument is, the less it is coded. For example, personal pronouns have the most continutiy and indefinite referentials have the least continutiy. The study strongly shows that topic continuity discontinutiy is controlled not only by grammatical devices available in the language but by socio-cultural factors and writer's intentions.