• Title/Summary/Keyword: syntactic structures

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Representing Topic-Comment Structures in Chinese

  • Pan, Haihua;Hu, Jianhua
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2002.02a
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    • pp.382-390
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    • 2002
  • Shi (2000) claims that topics must be related to a syntactic position in the comment, thus denying the existence of dangling topics in Chinese. Under Shi's analysis, the dangling topic sentences in Chinese are not topic-comment but subject-predicate sentences. However, Shi's arguments are not without problems. In this paper we argue that topics in Chinese can be licensed not only by a syntactic gap but also by a semantic gap/variable without syntactic realization. Under our analysis, all the dangling topics discussed in Shi (2000) are, in fact, not subjects but topics licensed by a semantic gap/variable that can turn the relevant comment into an open predicate, thus licensing dangling topics and deriving well-formed topic-comment constructions. Our analysis fares better than Shi's in not only unifying the licensing mechanism of a topic to an open predicate without considering how the open predicate is derived, but also unifying the treatment of normal and dangling topics in Chinese,

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Syntactic Analysis and Keyword Expansion for Performance Enhancement of Information Retrieval System (정보 검색 시스템의 성능 향상을 위한 구문 분석과 검색어 확장)

  • 윤성희
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.5 no.4
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    • pp.303-308
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    • 2004
  • Natural language query is the best user interface for the users of information retrieval systems. This paper Proposes a retrieval system with expanded keyword from syntactically-analyzed structures of user's natural language query based on natural language processing technique. Through the steps combining or splitting the compound nouns based on syntactic tree traversal, and expanding the other-formed or shorten-formed keyword into multiple keyword, the system performance was enhanced up to 11.3% precision and 4.7% correctness.

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The Phonetic Realization of intermediate phrase in French Intonation (프랑스어 억양구조에서 중간구의 음성적 실현 양상)

  • Yuh, Hea-Oak;Lee, Eun-Yung
    • Speech Sciences
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    • v.9 no.3
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    • pp.185-200
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    • 2002
  • The current study confirmed the existence of an ip prosodic level in French intonation structure, as previously proposed by Sun-Ah Jun & $C\acute{e}cile$cile Fougeron (2000). However, in contrast to the previous suggestion of the plateau realized in an ip in several syntactic structures, the current study supposed that the plateau doesn't come from the different type of syntactic structures but arise from the unspecified syllables without any PA in an ip. Because if we limited ip phrasal tone to the syntactic structure, it would be difficult to find the more general reasons of ip level. Besides /Hi/ and /$H^*$/ we also used /$Hi^*$/ for the focused syllable in the current study. In emphasized sentences, in general, /$Hi^*$/ appeared in the first or second syllable of a leftward AP in an ip and /$H^*$/ in the final syllable of a rightmost AP of an ip, In contrast to these PAs, /$Hi^*$/ might appear in any syllable in an ip, but not to far from /$H^*$/ because the duration time and length t of plateau realized between /$Hi^*$/ and /$H^*$/ or /Hi/ and /$H^*$/ would make an essential harmonious rhythmic unit, Therefore, the current study determined the duration time and the number of syllables realized in each plateau in an ip level composed of more than one AP. As a phrase constituent structure, there is a practical need for intermediate prosodic units to allow for generalization over the many possible combinations of prosodic patterns that can occur. Further evidence is still needed to analyze and relate the different pitch ranges of the plateau of an ip according to the syntactic structure, to identify the considerable character in the French prosodic hierarchy.

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A Simple Syntax for Complex Semantics

  • Lee, Kiyong
    • Proceedings of the Korean Society for Language and Information Conference
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    • 2002.02a
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    • pp.2-27
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    • 2002
  • As pact of a long-ranged project that aims at establishing database-theoretic semantics as a model of computational semantics, this presentation focuses on the development of a syntactic component for processing strings of words or sentences to construct semantic data structures. For design arid modeling purposes, the present treatment will be restricted to the analysis of some problematic constructions of Korean involving semi-free word order, conjunction arid temporal anchoring, and adnominal modification and antecedent binding. The present work heavily relies on Hausser's (1999, 2000) SLIM theory for language that is based on surface compositionality, time-linearity arid two other conditions on natural language processing. Time-linear syntax for natural language has been shown to be conceptually simple and computationally efficient. The associated semantics is complex, however, because it must deal with situated language involving interactive multi-agents. Nevertheless, by processing input word strings in a time-linear mode, the syntax cart incrementally construct the necessary semantic structures for relevant queries and valid inferences. The fragment of Korean syntax will be implemented in Malaga, a C-type implementation language that was enriched for both programming and debugging purposes arid that was particluarly made suitable for implementing in Left-Associative Grammar. This presentation will show how the system of syntactic rules with constraining subrules processes Korean sentences in a step-by-step time-linear manner to incrementally construct semantic data structures that mainly specify relations with their argument, temporal, and binding structures.

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The Relationship between Syntactic Complexity Indices and Scores on Language Use in the Analytic Rating Scale (통사적 복잡성과 분석적 척도의 언어 사용 점수간의 관계 탐색)

  • Young-Ju Lee
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.5
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    • pp.229-235
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    • 2023
  • This study investigates the relationship between syntactic complexity indices and scores on language use in Jacobs et al.(1981)' analytic rating scale. Syntactic complexity indices obtained from TAASSC program and 440 essays written by EFL students from the ICNALE corpus were analyzed. Specifically, this study explores the relationship between scores on language use and Lu(2011)'s traditional syntactic complexity indices, phrasal complexity indices, and clausal complexity indices, respectively. Results of the stepwise regression analysis showed that phrasal complexity indices turned out to be the best predictor of scores on language use, although the variance in scores on language use was relatively small, compared with the previous study. Implications of the findings of the current study for writing instruction (i.e., syntactic structures at the phrase level) were also discussed.

'Because of Doing' and 'Because of Happening': A Corpus-based Analysis of Korean Causal Conjunctives, -nula(ko) and -nun palamey

  • Oh, Sang-Suk
    • Language and Information
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    • v.8 no.2
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    • pp.131-147
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    • 2004
  • the two Korean causal conjunctive suffixes, -nula(ko) and -nun palamey, based on corpus linguistic analysis. Many of the linguistic accounts available, both in pedagogical reference and in the literature on linguistics, provide incomplete analyses of these suffixes, based on fabricated linguistic data. Using naturally occurring, real linguistic data, this paper examines the syntactic and semantic structures of the two causal suffixes through a consideration of three areas of corpus linguistic analysis: token frequencies, collocations, and semantic prosody. An analysis based on concordance data reveals that the two causal connectives, -nula(ko) and -nun palamey, have more differences than similarities in terms of syntactic and semantic constraints. The idiosyncratic structures of the two suffixes are discussed in terms of same subject condition, verb selection, same agent condition, synchronicity condition, and negative semantic prosody.

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Characteristics of Narrative Writing in Normal Aging: Story Grammar and Syntactic Structure (노년층의 글쓰기 특성 -이야기문법과 구문구조)

  • Kim, Hyeon Ah;Won, Sae Rom;Lee, Bo Eun;Yoon, Ji Hye
    • 재활복지
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    • v.21 no.1
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    • pp.193-212
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    • 2017
  • The elderly often produce irrelevant speech and get off-topic more easily than the young; the former also has difficulty generating fewer syntactic structures and makes errors of grammatical morphemes. In particular, the elderly might have more difficulty writing since it requires more complex cognitive processes than storytelling. The participants in this study were 32 young people and 32 older people. They were asked to write a short story of Korean fairy tale('Heungbu Nolbu'). The data was analyzed in narrative composition and syntactic structures. The study revealed the following: First, in composition aspects, the elderly group showed significantly lower total number of story grammar and episodes. In addition, the elderly produced more off topic statements. Second, in syntactic aspects, although there was no significant difference in the number of producing complex sentences between two groups, the elderly group generated more inadequate cohesive devices and used fewer relative and adverbial clauses. These findings suggest that the elderly have a tendency to perform tasks by producing more off-topic statements and shows decreasing coherence by using lower number of relative and adverbial clauses. However, this study also uncovers that the elderly were able to write more complex and longer sentences using visual feedback.

Korean Parser Using Segmentation Based on Dependency Grammar (의존문법 기반의 구간 분할법을 활용한 한국어 구문 분석기)

  • Park, Yong-Uk
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.13 no.8
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    • pp.1705-1712
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    • 2009
  • Recently, most Korean syntactic analysis systems use Dependency Grammar, because it is quite good to analysis of Korean language structures. But Dependency Grammar makes many ambiguities during syntax analysis of Korean. We implement a system which decreases many ambiguities in syntax analysis. To decrease ambiguities we suggest several methods. First, we use about 200 dependency rules, second, we suggest a new segmentation method and third, one predicate can not have more than one subject or object. Using these methods, we can reduce many ambiguities in Korean syntactic analysis.

Probing Sentence Embeddings in L2 Learners' LSTM Neural Language Models Using Adaptation Learning

  • Kim, Euhee
    • Journal of the Korea Society of Computer and Information
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    • v.27 no.3
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    • pp.13-23
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    • 2022
  • In this study we leveraged a probing method to evaluate how a pre-trained L2 LSTM language model represents sentences with relative and coordinate clauses. The probing experiment employed adapted models based on the pre-trained L2 language models to trace the syntactic properties of sentence embedding vector representations. The dataset for probing was automatically generated using several templates related to different sentence structures. To classify the syntactic properties of sentences for each probing task, we measured the adaptation effects of the language models using syntactic priming. We performed linear mixed-effects model analyses to analyze the relation between adaptation effects in a complex statistical manner and reveal how the L2 language models represent syntactic features for English sentences. When the L2 language models were compared with the baseline L1 Gulordava language models, the analogous results were found for each probing task. In addition, it was confirmed that the L2 language models contain syntactic features of relative and coordinate clauses hierarchically in the sentence embedding representations.

Combinatory Categorial Grammar for the Syntactic, Semantic, and Discourse Analyses of Coordinate Constructions in Korean (한국어 병렬문의 통사, 의미, 문맥 분석을 위한 결합범주문법)

  • Cho, Hyung-Joon;Park, Jong-Cheol
    • Journal of KIISE:Software and Applications
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    • v.27 no.4
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    • pp.448-462
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    • 2000
  • Coordinate constructions in natural language pose a number of difficulties to natural language processing units, due to the increased complexity of syntactic analysis, the syntactic ambiguity of the involved lexical items, and the apparent deletion of predicates in various places. In this paper, we address the syntactic characteristics of the coordinate constructions in Korean from the viewpoint of constructing a competence grammar, and present a version of combinatory categorial grammar for the analysis of coordinate constructions in Korean. We also show how to utilize a unified lexicon in the proposed grammar formalism in deriving the sentential semantics and associated information structures as well, in order to capture the discourse functions of coordinate constructions in Korean. The presented analysis conforms to the common wisdom that coordinate constructions are utilized in language not simply to reduce multiple sentences to a single sentence, but also to convey the information of contrast. Finally, we provide an analysis of sample corpora for the frequency of coordinate constructions in Korean and discuss some problematic cases.

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