• 제목/요약/키워드: Corpus analysis

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In My Opinion: Modality in Japanese EFL Learners' Argumentative Essays

  • Pemberton, Christine
    • 아시아태평양코퍼스연구
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    • 제1권2호
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    • pp.57-72
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    • 2020
  • This study seeks to add to the current understanding of learners' use of modality in argumentative writing. A learner corpus of argumentative essays on four topics was created and compared to native English speaker data from the International Corpus Network of Asian Learners of English (ICNALE). The relationship between learners' use of modal devices (MDs) and the devices' appearance in the school's curriculum was also examined. The results showed that learners relied on a very narrow range of MDs compared to those in previous studies. The frequency of use of MDs varied based on the topic and did not seem to be driven by cultural factors as has been previously suggested. Learners used more hedges than boosters on all topics, contradicting most previous studies. Curriculum was determined to have a direct correlation with MD use, and other important factors may include perception of topic and overreliance on certain MDs over others (the One-to-One principal). This research implies that learners' perception of topic should be explored further as a variable affecting MD use. Curricula should be designed based on frequency of MD use by English native speakers, and learners should receive instruction that teaches the norms of MD use in academic writing. The methodology used in the study to determine correlations between MD use and the curriculum has a wide range of potential applications in the field of Contrastive Interlanguage Analysis.

A Corpus-Based Analysis of Crosslinguistic Influence on the Acquisition of Concessive Conditionals in L2 English

  • Newbery-Payton, Laurence
    • 아시아태평양코퍼스연구
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    • 제3권1호
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    • pp.35-49
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    • 2022
  • This study examines crosslinguistic influence on the use of concessive conditionals by Japanese EFL learners. Contrastive analysis suggests that Japanese native speakers may overuse the concessive conditional even if due to partial similarities to Japanese concessive conditionals, whose formal and semantic restrictions are fewer than those of English concessive conditionals. This hypothesis is tested using data from the written module of the International Corpus Network of Asian Learners of English (ICNALE). Comparison of Japanese native speakers with English native speakers and Chinese native speakers reveals the following trends. First, Japanese native speakers tend to overuse concessive conditionals compared to native speakers, while similar overuse is not observed in Chinese native speaker data. Second, non-nativelike uses of even if appear in contexts allowing the use of concessive conditionals in Japanese. Third, while overuse and infelicitous use of even if is observed at all proficiency levels, formal errors are restricted to learners at lower proficiency levels. These findings suggest that crosslinguistic influence does occur in the use of concessive conditionals, and that its particular realization is affected by L2 proficiency, with formal crosslinguistic influence mediated at an earlier stage than semantic cross-linguistic influence.

키워드 분석에 대한 최신 접근법 비교 연구: 성경 코퍼스를 중심으로 (A Comparative Study of a New Approach to Keyword Analysis: Focusing on NBC)

  • 하명호
    • 디지털융복합연구
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    • 제19권7호
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    • pp.33-39
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    • 2021
  • 본 연구는 구약 성경 코퍼스와 신약 성경 코퍼스, 그리고 구약과 신약 성경을 통합한 코퍼스에서 추출된 키워드 목록의 어휘적 특징을 분석하고, 또 사용빈도 기반의 키워드 분석보다 분포도 기반 키워드 분석이 더 우수한 분석 방식임을 밝히고자 하였다. 이를 위해 Bible Hub의 NLT 웹사이트에서 성경 파일을 다운받아 약 57만 어절의 구약 성경 코퍼스와 약 20만 어절의 신약 성경 코퍼스를 구축하였다. 목표 코퍼스와 참조 코퍼스의 비교를 통한 키워드 목록을 추출하기 위해서 Scott(2020)의 WordSmith 8.0 프로그램을 사용하였다. 그 결과, 분포도 기반 키워드 분석이 사용빈도 기반의 키워드 분석보다 키워드 목록의 어휘적 특징을 보다 더 잘 나타낼 수 있었고, 또 코퍼스 내용의 대표성과 변별성을 충분히 충족시킬 수 있는 최적의 키워드 목록을 추출하기 위해서는 분포도 기반 키워드 분석이 더 우수한 방식임을 밝혔다.

비정형 텍스트 데이터 정제를 위한 불용어 코퍼스의 활용에 관한 연구 (A Study on the Use of Stopword Corpus for Cleansing Unstructured Text Data)

  • 이원조
    • 문화기술의 융합
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    • 제8권6호
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    • pp.891-897
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    • 2022
  • 빅데이터 분석에서 원시 텍스트 데이터는 대부분 다양한 비정형 데이터 형태로 존재하기 때문에 휴리스틱 전처리 정제와 컴퓨터를 이용한 후처리 정제과정을 거쳐야 분석이 가능한 정형 데이터 형태가 된다. 따라서 본 연구에서는 텍스트 데이터 분석 기법의 하나인 R 프로그램의 워드클라우드를 적용하기 위해서 수집된 원시 데이터 전처리를 통해 불필요한 요소들을 정제하고 후처리 과정에서 불용어를 제거한다. 그리고 단어들의 출현 빈도수를 계산하고 출현빈도가 높은 단어들을 핵심 이슈들로 표현해 주는 워드클라우드 분석의 사례 연구를 하였다. 이번 연구는 R의워드클라우드 기법으로 기존의 불용어 처리 방법인 "내포된 불용어 소스코드" 방법의 문제점을 개선하기 위하여 "일반적인 불용어 코퍼스"와 "사용자 정의 불용어 코퍼스"의 활용 방안을 제안하고 사례 분석을 통해서 제안된 "비정형 데이터 정제과정 모델"의 장단점을 비교 검증하여 제시하고 "제안된 외부 코퍼스 정제기법"을 이용한 워드클라우드 시각화 분석의 실무적용에 대한 효용성을 제시한다.

Corpus-based analysis of the usage of Korean markers -(n)un and -i/ka in editorial texts

  • Kim, Kyoung-Young
    • 한국언어정보학회지:언어와정보
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    • 제19권2호
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    • pp.19-36
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    • 2015
  • The aim of this paper is to investigate the usage of Korean markers -(n)un and -i/ka in editorial texts focusing on information structure. Noun phrases ending with the markers -(n)un and -i/ka were annotated semi-automatically using a corpus obtained from an online newspaper. Two important factors to determine the choice of markers were examined with the annotated data: referential givenness/newness and position in a sentence. Referential givenness and newness were adopted as indicators of information structure, topic and focus respectively. In addition to quantitative analysis, qualitative analysis was conducted on the selected data. The results suggest that both the marker -(n)un and -i/ka could carry a topic and a focus reading. Sentence position also played a crucial role in determining the marker, and the marker -i/ka was used more frequently in a later position of a sentence than the marker -(n)un.

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Phonological processes of consonants from orthographic to pronounced words in the Buckeye Corpus

  • Yang, Byunggon
    • 말소리와 음성과학
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    • 제11권4호
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    • pp.55-62
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    • 2019
  • This paper investigates the phonological processes of consonants in pronounced words in the Buckeye Corpus and compares the frequency distribution of these processes to provide a clearer understanding of conversational English for linguists and teachers. Both orthographic and pronounced words were extracted from the transcribed label scripts of the Buckeye Corpus. Next, the phonological processes of consonants in the orthographic and pronounced labels were tabulated separately by onsets and codas, and a frequency distribution by consonant process types was examined. The results showed that the majority of the onset clusters were pronounced as the same sounds in the Buckeye Corpus. The participants in the corpus were presumed to speak semiformally. In addition, the onsets have fewer deletions than the codas, which might be related to the information weight of the syllable components. Moreover, there is a significant association and strong positive correlation between the phonological processes of the onsets and codas in men and women. This paper concludes that an analysis of phonological processes in spontaneous speech corpora can contribute to a practical understanding of spoken English. Further studies comparing the current phonological process data with those of other languages would be desirable to establish universal patterns in phonological processes.

Clustering Keywords to Define Cybersecurity: An Analysis of Malaysian and ASEAN Countries' Cyber Laws

  • Joharry, Siti Aeisha;Turiman, Syamimi;Nor, Nor Fariza Mohd
    • 아시아태평양코퍼스연구
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    • 제3권2호
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    • pp.17-33
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    • 2022
  • While the term is nothing new, 'cybersecurity' still seems to be defined quite loosely and subjectively depending on context. This is problematic especially to legal writers for prosecuting cybercrimes that do not fit a particular clause/act. In fact, what is more difficult is the non-existent single 'cybersecurity law' in Malaysia, rather than the current implementation of 10-related cyber security acts. In this paper, the 10 acts are compiled into a corpus to analyse the language used in these acts via a corpus linguistics approach. A list of frequent words is firstly investigated to see whether the so-called related laws do talk about cybersecurity followed by close inspection of the concordance lines and habitually associated phrases (clusters) to explore use of these words in context. The 'compare 2 wordlist' feature is used to identify similarities or differences between the 10 Malaysian cybersecurity related laws against a corpus of cyber laws from other ASEAN countries. Findings revealed that ASEAN cyber laws refer mostly to three cybersecurity dominant themes identified in the literature: technological solutions, events, and strategies, processes, and methods, whereas Malaysian cybersecurity-related laws revolved around themes like human engagement, and referent objects (of security). Although these so-called cyber related policies and laws in Malaysia are highlighted in the National Cyber Security Agency (NACSA), their practical applications to combat cybercrimes remain uncertain.

CiteSeer 말뭉치를 이용한 과학기술 문헌의 주제 분석 (Topic Analysis of Science and Technology Articles using CiteSeer Corpus)

  • 정한민;강인수;성원경
    • 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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    • 제14권5호
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    • pp.507-511
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    • 2008
  • 과학기술 분야는 매우 빠른 발전 속도를 보이며 세부 분야 간 융 복합 현상이 빈번하게 일어나는 특징을 가지고 있다. 과학기술정보 말뭉치로부터 상기 특성을 분석해 내는 작업은 연구 주제 추이를 분석하고 주제 간 연관 관계를 파악하기 위해 필요하다. 본 연구는 과학기술 분야 - 특히 정보기술(Information Technology) 분야 - 에서 광범위하게 활용되고 있는 Citeseer 말뭉치로부터 추출된 주제를 이용하여 다양한 주제 분석을 수행하는 방안을 보이는 것을 목표로 한다. 특히, 연구개발 전주기 지원 시스템인 OntoFrame에서 주제가 어떠한 역할을 할 수 있는지 사례를 통해 실증하고자 한다.

A Corpus-Based Study of the Use of HEART and HEAD in English

  • Oh, Sang-suk
    • 한국언어정보학회지:언어와정보
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    • 제18권2호
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    • pp.81-102
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    • 2014
  • The purpose of this paper is to provide corpus-based quantitative analyses of HEART and HEAD in order to examine their actual usage status and to consider some cognitive linguistic aspects associated with their use. The two corpora COCA and COHA are used for analysis in this study. The analysis of COCA corpus reveals that the total frequency of HEAD is much higher than that of HEART, and that the figurative use of HEART (60%) is two times higher than its literal use (32%); by contrast, the figurative use of HEAD (41%) is a bit higher than its literal use (38%). Among all four genres, both lexemes occur most frequently in fictions and then in magazines. Over the past two centuries, the use of HEART has been steadily decreasing; by contrast, that the use of HEAD has been steadily increasing. It is assumed that the decreasing use of HEART has partially to do with the decrease in its figurative use and that the increasing use of HEAD is attributable to its diverse meanings, the increase of its lexical use, and the partial increase in its figurative use. The analysis of the collocation of verbs and adjectives preceding HEART and HEAD, as well the modifying and predicating forms of HEART and HEAD also provides some relevant information of the usage of the two lexemes. This paper showcases that the quantitative information helps understanding not only of the actual usage of the two lexemes but also of the cognitive forces working behind it.

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On the Analysis of Natural Language Processing Morphology for the Specialized Corpus in the Railway Domain

  • Won, Jong Un;Jeon, Hong Kyu;Kim, Min Joong;Kim, Beak Hyun;Kim, Young Min
    • International Journal of Internet, Broadcasting and Communication
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    • 제14권4호
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    • pp.189-197
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    • 2022
  • Today, we are exposed to various text-based media such as newspapers, Internet articles, and SNS, and the amount of text data we encounter has increased exponentially due to the recent availability of Internet access using mobile devices such as smartphones. Collecting useful information from a lot of text information is called text analysis, and in order to extract information, it is performed using technologies such as Natural Language Processing (NLP) for processing natural language with the recent development of artificial intelligence. For this purpose, a morpheme analyzer based on everyday language has been disclosed and is being used. Pre-learning language models, which can acquire natural language knowledge through unsupervised learning based on large numbers of corpus, are a very common factor in natural language processing recently, but conventional morpheme analysts are limited in their use in specialized fields. In this paper, as a preliminary work to develop a natural language analysis language model specialized in the railway field, the procedure for construction a corpus specialized in the railway field is presented.