• Title/Summary/Keyword: Vocabulary knowledge

Search Result 95, Processing Time 0.024 seconds

Using Small Corpora of Critiques to Set Pedagogical Goals in First Year ESP Business English

  • Wang, Yu-Chi;Davis, Richard Hill
    • Asia Pacific Journal of Corpus Research
    • /
    • v.2 no.2
    • /
    • pp.17-29
    • /
    • 2021
  • The current study explores small corpora of critiques written by Chinese and non-Chinese university students and how strategies used by these writers compare with high-rated L1 students. Data collection includes three small corpora of student writing; 20 student critiques in 2017, 23 student critiques from 2018, and 23 critiques from the online Michigan MICUSP collection at the University of Michigan. The researchers employ Text Inspector and Lexical Complexity to identify university students' vocabulary knowledge and awareness of syntactic complexity. In addition, WMatrix4® is used to identify and support the comparison of lexical and semantic differences among the three corpora. The findings indicate that gaps between Chinese and non-Chinese writers in the same university classes exist in students' knowledge of grammatical features and interactional metadiscourse. In addition, critiques by Chinese writers are more likely to produce shorter clauses and sentences. In addition, the mean value of complex nominal and coordinate phrases is smaller for Chinese students than for non-Chinese and MICUSP writers. Finally, in terms of lexical bundles, Chinese student writers prefer clausal bundles instead of phrasal bundles, which, according to previous studies, are more often found in texts of skilled writers. The current study's findings suggest incorporating implicit and explicit instruction through the implementation of corpora in language classrooms to advance skills and strategies of all, but particularly of Chinese writers of English.

Cross-language Transfer of Phonological Awareness and Its Relations with Reading and Writing in Korean and English (음운인식의 언어 간 전이와 한글 및 영어의 읽기 쓰기와의 관계)

  • Kim, Sangmi;Cho, Jeung-Ryeul;Kim, Ji-Youn
    • Korean Journal of Cognitive Science
    • /
    • v.26 no.2
    • /
    • pp.125-146
    • /
    • 2015
  • This study investigated the contribution of Korean phonological awareness to English phonological awareness and the relations of phonological awareness with reading and writing in Korean Hangul and English among Korean 5th graders. With age and vocabulary knowledge statistically controlled, Korean phonological awareness was transferred to English phonological awareness. Specifically, syllable and phoneme awareness in Korean transferred to syllable awareness in English, and Korean phoneme awareness transferred to English phoneme awareness. In addition, English phoneme awareness independently explained significant variance of reading and writing in Korean and English after controlling for age and vocabulary. Syllable awareness in Korean and English explained Hangul reading and writing, respectively. The results suggest cross-language transfer of phonological awareness that is a metalinguistic skill. Phoneme awareness is important in reading and writing in English whereas both of syllable and phoneme awareness are important in literacy of Korean.

Vocabulary Learning from Storybooks : Effects of a Teacher's Reading Strategy on Korean Preschoolers with Different Prior Word Knowledge (이야기책을 통한 취학 전 아동의 어휘력 발달에 관한 연구 : 개인차에 따른 교사 읽기 방법의 차별적 영향을 중심으로)

  • Han, Eun Hae
    • Korean Journal of Child Studies
    • /
    • v.22 no.1
    • /
    • pp.251-271
    • /
    • 2001
  • 교사가 이야기책을 반복하여 읽어주는 (a multiple reading) 과정에서 아동이 새로운 단어에 해당하는 그림을 보고 그 단어를 명명하게 하는 (a labeling strategy) 읽기 방법이 아동의 어휘획득에 연령과 경험에 따라 차별적인 효과를 가져오는가, 또한 동일한 읽기 방법이 그룹 상황에 적용되었을 때 일대일 상황에서 얻어지는 효과와 같은 효율성을 갖는가의 문제가 각각의 실험에서 다루어졌다. 양 실험에서 각 연령 (4, 5세) 집단은 그림 어휘력 검사의 표준 점수 결과를 기준으로 하여, 상 하 두 어휘력 집단으로 나뉘어졌다. 아동이 설정된 새로운 단어를 획득한 결과는 comprehensive와 productive 어휘력 검사를 통해 측정되었다. 첫 번째 실험에서 4세와 5세 아동들은 각 연령 집단에서 교사가 일 대 일로 이야기책을 읽어줄 때, 수동적으로 듣거나 또는 설정된 단어에 해당하는 그림을 보며 직접 명명할 수 있었다. 두 번째 실험에서는 첫 번째 실험에 참여한 4세 아동들이 같은 읽기 방법으로 그룹 상황에서 읽혀졌다. 첫 번째 실험 결과, 새로운 단어를 comprehend 하고 produce 하는데 5세 아동이 4세 아동 보다 나은 기제를 갖고 있는지는 분명히 밝혀지지 않았다. 결과를 통해 분명하게 밝혀진 것은 이야기책이 읽혀지는 동안 얻어지는 comprehensive 어휘와 productive 어휘에는 차이가 있다는 것이다. 아동들은, 특히 어릴수록, 새로운 단어를 comprehend 하는데 있어서는 labeling strategy의 효과를 보지 못한 반면, 단어를 produce 하는데 있어서는 동일한 방법이 단순한 반복 읽기 보다 효과적이었다. 덧붙여, 어휘력에 있어 상위 집단에 속한 아동이 하위 집단에 속한 아동 보다 더 많은 단어를 comprehend 하고 produce 한다는 점을 확인시켰다. 두 번째 실험 결과는 그룹 상황에서 4세 아동에게 이야기책을 읽어줌으로써 새로운 단어를 획득하게 할 수 있다는 것을 보여 주었다. 사용된 labeling strategy는 특히 productive 어휘 획득에 효과적인 것으로 나타났으며, 따라서 일대일 상황에서 뿐 아니라 그룹 상황에서도 중요한 요소로 보였다. 덧붙여, productive 어휘 획득에 있어서 labeling strategy의 효과는 어휘력에 있어 하위 집단에 속한 아동에게는 상황에 따라 다른 결과를 가져왔다. 즉, labeling strategy의 효과에 있어서 하위 집단의 아동들은 그룹보다 일대일 상황에서 productive 어휘를 더 많이 획득했다. 연구결과, productive 어휘력 발달을 위하여 교사는 일대일 책읽기 뿐 아니라 그룹 책 읽기에서도 labeling strategy를 사용하는 것을 고려해야 하며, 비교적 적은 어휘력을 갖고 있는 아동에게는 일대일 상황에서 labeling strategy를 사용하여 이야기책을 읽어주는 시간을 할당할 것을 제시했다.

  • PDF

Speech Synthesis for the Korean large Vocabulary Through the Waveform Analysis in Time Domains and Evauation of Synthesized Speech Quality (시간영역에서의 파형분석에 의한 무제한 어휘 합성 및 음절 유형별 규칙합성음 음질평가)

  • Kang, Chan-Hee;Chin, Yong-Ohk
    • The Journal of the Acoustical Society of Korea
    • /
    • v.13 no.1
    • /
    • pp.71-83
    • /
    • 1994
  • This paper deals with the improvement of the synthesized speech quality and naturality in the Korean TTS(Text-to-Speech) system. We had extracted the parameters(table2) such as its amplitude, duration and pitch period in a syllable through the analysis of speech waveforms(table1) in the time domain and synthesized syllables using them. To the frequencies of the Korean pronunciation large vocabulary dictionary we had synthesized speeches selected 229 syllables such as V types are 19, CV types are 80. VC types are 30 and CVC types are 100. According to the 4 Korean syllable types from the data format dictionary(table3) we had tested each 15 syllables with the objective MOS(Mean Opinion Score) evaluation method about the 4 items i.e., intelligibility, clearness, loudness, and naturality after selecting random group without the knowledge of them. As the results of experiments the qualities of them are very clear and we can control the prosodic elements such as durations, accents and pitch periods (fig9, 10, 11, 12).

  • PDF

Automatic Generation of Concatenate Morphemes for Korean LVCSR (대어휘 연속음성 인식을 위한 결합형태소 자동생성)

  • 박영희;정민화
    • The Journal of the Acoustical Society of Korea
    • /
    • v.21 no.4
    • /
    • pp.407-414
    • /
    • 2002
  • In this paper, we present a method that automatically generates concatenate morpheme based language models to improve the performance of Korean large vocabulary continuous speech recognition. The focus was brought into improvement against recognition errors of monosyllable morphemes that occupy 54% of the training text corpus and more frequently mis-recognized. Knowledge-based method using POS patterns has disadvantages such as the difficulty in making rules and producing many low frequency concatenate morphemes. Proposed method automatically selects morpheme-pairs from training text data based on measures such as frequency, mutual information, and unigram log likelihood. Experiment was performed using 7M-morpheme text corpus and 20K-morpheme lexicon. The frequency measure with constraint on the number of morphemes used for concatenation produces the best result of reducing monosyllables from 54% to 30%, bigram perplexity from 117.9 to 97.3. and MER from 21.3% to 17.6%.

Development of Online Fashion Thesaurus and Taxonomy for Text Mining (텍스트마이닝을 위한 패션 속성 분류체계 및 말뭉치 웹사전 구축)

  • Seyoon Jang;Ha Youn Kim;Songmee Kim;Woojin Choi;Jin Jeong;Yuri Lee
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.46 no.6
    • /
    • pp.1142-1160
    • /
    • 2022
  • Text data plays a significant role in understanding and analyzing trends in consumer, business, and social sectors. For text analysis, there must be a corpus that reflects specific domain knowledge. However, in the field of fashion, the professional corpus is insufficient. This study aims to develop a taxonomy and thesaurus that considers the specialty of fashion products. To this end, about 100,000 fashion vocabulary terms were collected by crawling text data from WSGN, Pantone, and online platforms; text subsequently was extracted through preprocessing with Python. The taxonomy was composed of items, silhouettes, details, styles, colors, textiles, and patterns/prints, which are seven attributes of clothes. The corpus was completed through processing synonyms of terms from fashion books such as dictionaries. Finally, 10,294 vocabulary words, including 1,956 standard Korean words, were classified in the taxonomy. All data was then developed into a web dictionary system. Quantitative and qualitative performance tests of the results were conducted through expert reviews. The performance of the thesaurus also was verified by comparing the results of text mining analysis through the previously developed corpus. This study contributes to achieving a text data standard and enables meaningful results of text mining analysis in the fashion field.

The Beliefs about Language Learning of Korean College Students and Their Teachers of English

  • Kim, Kyung-Ja
    • English Language & Literature Teaching
    • /
    • v.12 no.3
    • /
    • pp.1-24
    • /
    • 2006
  • This study investigated differences in beliefs about English learning of 286 EFL college students and 52 English teachers in Korea. Data was collected using Horwitz's Beliefs About Language Learning Inventory and compared between students and teachers in beliefs. To address the research questions, the data were analyzed through descriptive statistics including frequencies, factor analysis, MANOVA, ANOVA, t-test, and reliability coefficients. The results showed four factors in student beliefs: Difficulty of learning English, nature of learning English, importance of correctness in learning English, and motivation and perceived importance of learning English. Clear differences were found in students and teachers' beliefs in English learning aptitude and importance of translation, error correction, and grammar rules. A few belief differences were also identified between Koreans and native-speaking English teachers related to the importance of vocabulary learning, pronunciation, and cultural knowledge. The findings of the study indicated that background variables such as gender and major field of study have an effect on student beliefs about L2 learning. The present study also provided pedagogical considerations to reduce mismatch between students and teachers beliefs and to improve the L2 planning and instruction.

  • PDF

Investigating English reading processes of Korean college students through reciprocal reading strategy (상호작용 읽기전략을 통해서 본 한국 대학생들의 독해과정에 관한 연구)

  • Rha, Kyeong-Hee;Lee, Sun
    • English Language & Literature Teaching
    • /
    • v.11 no.4
    • /
    • pp.209-235
    • /
    • 2005
  • The purpose of the present study was to investigate the effectiveness of reciprocal teaching procedure for improving Korean college students' reading comprehension of English text. In particular, this study sought to explore the qualitative features, if any, in students' use of reading comprehension strategies presented in the process of Reciprocal Reading Procedure (RRP). In order to accomplish the goal of the study, transcripts of the students' dialogues, open-ended questionnaires, and researchers' observation notes were examined. The results of the study showed that the participants used different four kinds of reading strategies in the process of RRP (questioning, clarifying, predicting, summarizing). The findings also suggested that the readers with limited knowledge of vocabulary had difficulty in moving on to the next level. Additionally, future research direction and some pedagogical implications are presented for the practical EFL classroom.

  • PDF

대학생들의 3D 가상현실을 이용한 채팅의 영어학습 효과

  • Lee, Seon-Hye;Jeong, Dong-Bin
    • English Language & Literature Teaching
    • /
    • v.16 no.1
    • /
    • pp.233-257
    • /
    • 2009
  • The purpose of the present study was to examine the effect of 3D avatar-based Virtual Reality chatting on college students' English learning achievement. Forty college sophomore students participated at this study and the research lesson continued for 8 weeks. They were administered to take a pretest to evaluate their vocabulary knowledge and writing skills. Their progress was assessed on the basis of midterm. Finally, a post-questionnaire was administered to measure their interest and understanding toward their learning experience in 3D avatar-based Virtual chatting. The results of this study indicated that there was a statistically significant difference between the control group and experimental group with respect to their midterm scores and writing. The result of the post-survey indicated the interest of English was statistically higher than the understanding of English.

  • PDF

A Machine Learning Approach to Korean Language Stemming

  • Cho, Se-hyeong
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.11 no.6
    • /
    • pp.549-557
    • /
    • 2001
  • Morphological analysis and POS tagging require a dictionary for the language at hand . In this fashion though it is impossible to analyze a language a dictionary. We also have difficulty if significant portion of the vocabulary is new or unknown . This paper explores the possibility of learning morphology of an agglutinative language. in particular Korean language, without any prior lexical knowledge of the language. We use unsupervised learning in that there is no instructor to guide the outcome of the learner, nor any tagged corpus. Here are the main characteristics of the approach: First. we use only raw corpus without any tags attached or any dictionary. Second, unlike many heuristics that are theoretically ungrounded, this method is based on statistical methods , which are widely accepted. The method is currently applied only to Korean language but since it is essentially language-neutral it can easily be adapted to other agglutinative languages.

  • PDF