• Title/Summary/Keyword: Korean Alphabet

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Comparison of Feature Performance in Off-line Hanwritten Korean Alphabet Recognition (오프라인 필기체 한글 자소 인식에 있어서 특징성능의 비교)

  • Ko, Tae-Seog;Kim, Jong-Ryeol;Chung, Kyu-Sik
    • Korean Journal of Cognitive Science
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    • v.7 no.1
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    • pp.57-74
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    • 1996
  • This paper presents a comparison of recognition performance of the features used inthe recent handwritten korean character recognition.This research aims at providing the basis for feature selecion in order to improve not only the recognition rate but also the efficiency of recognition system.For the comparison of feature performace,we analyzed the characteristics of theose features and then,classified them into three rypes:global feature(image transformation)type,statistical feature type,and local/ topological feature type.For each type,we selected four or five features which seem more suitable to represent the characteristics of korean alphabet,and performed recongition experiments for the first consonant,horizontal vowel,and vertical vowel of a korean character, respectively.The classifier used in our experiments is a multi-layered perceptron with one hidden layer which is trained with backpropagation algorithm.The training and test data in the experiment are taken from 30sets of PE92. Experimental results show that 1)local/topological features outperform the other two type features in terms of recognition rates 2)mesh and projection features in statical feature type,walsh and DCT features in global feature type,and gradient and concavity features in local/topological feature type outperform the others in each type, respectively.

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The Effect of Sensory Integrative Intervention Focused on Proprioceptive-Vestibular Stimuli on the Handwriting and Fine Motor Function in Lower Grade Elementary School Children (고유-전정감각 중심의 감각통합 중재가 초등학교 저학년 아동의 글씨쓰기와 소운동에 미치는 영향)

  • Hwang, Ji-Hye;Kim, Hee-Jung;Jung, Hyerim
    • The Journal of Korean Academy of Sensory Integration
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    • v.15 no.1
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    • pp.10-20
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    • 2017
  • Objective : The purpose of this study was to investigate the effect of proprioceptive-vestibular based sensory integrative intervention on handwriting and fine motor function in elementary school students in grades 1 to 3. Methods : In this study, eight students in an elementary school in Busan were enrolled. The intervention was conducted twice a week from May to October, 2016, and a total of 14 intervention sessions were conducted. In order to evaluate the writing ability and the fine-motor exercise ability before and after the intervention, the fine-motor movement items of the Korean alphabet writing test and the Bruininks-Oseretsky Test of Motor Proficiency (BOTMP) evaluation were used. Results : There was a statistically significant difference between the total scores of consonant writing and the Korean alphabet writing assessment after the intervention. In BOTMP-Fine motor, the response speed items showed statistically significant difference. Visual-motor control scores increased during intervention, but the statistical significance was not found. Conclusion : Sensory integration interventions might have positive effects on elementary school students' writing skills and fine motor functions.

EEG based Vowel Feature Extraction for Speech Recognition System using International Phonetic Alphabet (EEG기반 언어 인식 시스템을 위한 국제음성기호를 이용한 모음 특징 추출 연구)

  • Lee, Tae-Ju;Sim, Kwee-Bo
    • Journal of the Korean Institute of Intelligent Systems
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    • v.24 no.1
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    • pp.90-95
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    • 2014
  • The researchs using brain-computer interface, the new interface system which connect human to macine, have been maded to implement the user-assistance devices for control of wheelchairs or input the characters. In recent researches, there are several trials to implement the speech recognitions system based on the brain wave and attempt to silent communication. In this paper, we studied how to extract features of vowel based on international phonetic alphabet (IPA), as a foundation step for implementing of speech recognition system based on electroencephalogram (EEG). We conducted the 2 step experiments with three healthy male subjects, and first step was speaking imagery with single vowel and second step was imagery with successive two vowels. We selected 32 channels, which include frontal lobe related to thinking and temporal lobe related to speech function, among acquired 64 channels. Eigen value of the signal was used for feature vector and support vector machine (SVM) was used for classification. As a result of first step, we should use over than 10th order of feature vector to analyze the EEG signal of speech and if we used 11th order feature vector, the highest average classification rate was 95.63 % in classification between /a/ and /o/, the lowest average classification rate was 86.85 % with /a/ and /u/. In the second step of the experiments, we studied the difference of speech imaginary signals between single and successive two vowels.

A Study of the Identity of Hangul Typography (한글 타이포그라피의 정체성에 관한 연구)

  • 안상수
    • Archives of design research
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    • v.13 no.1
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    • pp.103-110
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    • 2000
  • Hangul came to life as part of the East Asian culture of the Chinese ideograph. Korean letter-culture is starkly different from that of Western letter-culture. In the Orient, letters were sacred and incantory; they were objects of awe, which incorporated elements of the majestic, mysterious, and of ritual. Here we had cultural tradition that acknowledged the intrinsic value of the letters. And it was in this context that Hangul was born as a completely phonetic system of writing. However, the characteristics of Hangul are quite different from those of Chinese ideographs, which are designed to convey a certain meaning. Despite the fact that Hangul is phonetic, its roots lie most definitely in the image of Chinese ideographs. This is something that contrasts with the roots of the Latin alphabet, which have been lost in its long journey of evolution. As a phonetic writing system, a notable characteristic of Hangul is that it has this and the attributes of image. In other words, in that Hangul is a compound, it shares some of the same attributes as Chinese ideographs, but also in that it is a phonetic writing system it is dose to the Latin alphabet. Hangul is definitely a visual writing system that has its origins in the visual culture of Chinese characters as well as being functionally a highly developed phonetic writing system. In short, Hangul has both of these attributes in one writing system. These characteristics of Hangul, for us living in the era of the image, are parts that awaken us to the meaning of existence in our visual culture. Unique among the world's writing systems, the identity of Hangul typography will become none other than the essence of our visual culture.

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A New Hangul Jamo Morse Code According to The Variable Length Coding Theory and Dichotomic Search Method (가변길이부호화이론과 이분검색법을 적용한 새로운 한글자모 모르스 부호)

  • Hong, Wan-Pyo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.13 no.4
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    • pp.803-812
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    • 2018
  • The Morse code was firstly used for a wire telegraph service on May 1884 in USA. After about 10 years Korean researchers developed the Morse code in 1884 and the Morse code was firstly introduced in Korea for the wire telegraph service in September 1885. For about 130 years later, the Hangul Jamo Morse code has been used without any serious modification up to now. The Morse code is the variable length code system which each codes have a different code length. The related reference shows that English alphabet Morse code was applied in the coding theory. However, a result of analysis showed that the Hangul Jamo Morse code was not applied in the coding theory as the english alphabet code system. This paper presents the analysis result of Hangul Jamo Morse code according to the variable length coding theory. As a result of the analysis, when Hangul Jamo are coded with application of the variable length coding theory, the transmission data rate could be increased up to 25% compare to the existing code system. This paper shows a new Hangul Jamo Morse code system based on the analysis result.

The Development of Grapheme-Phoneme Correspondence Rules and Kulja Reading in Korean-Chinese Children (중국 조선족 아동의 한글 자소-음소 대응능력의 발달과 글자읽기와의 관계에 관한 연구)

  • Yoon, Hyekyung;Park, Hyewon
    • Korean Journal of Child Studies
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    • v.26 no.4
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    • pp.145-155
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    • 2005
  • This study was carried out to reveal Hangul acquisition processes in Korean-Chinese children who grow in a horizontal bilingual environment. In this experiment Grapheme substitution/deletion tasks and sensible/non-sensible Kulja reading tasks were administered to 3-, 4-, 5- and 6-year-old Korean-Chinese children growing up in a bilingual environment. Results were that Korean-Chinese children showed similar patterns of Hangul acquisition processes to Korean children but acquired grapheme-phoneme(G-P) correspondence earlier than Korean children. Hangul acquisition rates were 41.7%, 45.7%, 53% and 92.7% at age 3, 4, 5 and 6, respectively. Both Korean-Chinese and Korean children showed higher sensitivity for the final consonant than for the initial and middle consonants. Correlation between phoneme perception and reading was only significant among 6-year-olds in non-sensible Kulja reading tasks. Training in transforming ideographic Chinese to a phonetic system could effect early acquisition of G-P correspondence in Korean-Chinese children.

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Japanese Dictionary Input System in Korean Traditional Reading Rule of Chinese Character (한자음으로 일본어 사전을 검색하는 방법(독음입력법))

  • Jeong, Cheol
    • Annual Conference on Human and Language Technology
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    • 2005.10a
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    • pp.139-144
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    • 2005
  • When a Japanese learner in Korea tries to find Japanese dictionary, he must know the pronunciation of the target word. But it's not easy to know the pronunciation of target word from Japanese sentence. Because most of general Japanese sentence shows only HanJa(Chinese character) instead of Kana(Japanese alphabet). If the Japanese learner knows the Korean traditional pronunciation of the target word, he can input the word to electronic Japanese dictionary with the Korean pronunciation. For this solution, the dictionary service provider must convert the Japanese word to Korean pronunciation, in advance. After setting of the conversions as a additional searching process, we can find the target word through Korean pronunciation of the Japanese HanJa, This process is possible for the three reasons below, 1. Korean, Japanese and Chinese are using the nearly same HanJa. The difference is small. 2. Most Japanese learner in Korea, knows the Korean pronunciation of the HanJa. 3. The Korean pronunciation of the HanJa is nearly unique, a HanJa has a Korean pronunciation, generally.

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Basic Phonetic Problems Encountered by Poles Studying Korean. (폴란드인이 한국어 학습에 나타난 발음상의 음성학적 문제)

  • Paradowska Anna Isabella
    • Proceedings of the KSPS conference
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    • 1996.10a
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    • pp.247-251
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    • 1996
  • This paper is intended as a preliminary study on phonetic and phonological differences between Polish and Korean languages. In this paper an attempt is made to examine the most conspicious difficulties encountered by Polish learners who begin to speak Korean (and in doing so, 1 would hope that it might be of help to future learners of both languages). Since the phoneme inventory and general phonetic rules for both languages are very different, teaching and learning accurate pronunciation is extremely difficult for both the Poles and Koreans without any previous phonetic training. In the case of Polish and Korean we can see how strong and persistent the influences of the mother-tongue are on the target language. As an example I would like to discuss the basic differences between Polish and Korean consonants. The most important consonantal opposition in Polish is voice-/voicelessness (f. ex.; 〔b〕 / 〔p〕, 〔g〕 / 〔k〕) while in Korean, opposition such as voice-/voicelessness is of secondary importance. Therefore Korean speakers do not perceive the difference between Polish voiced and voiceless consonants. On the other hand, Polish speakers can not distinguish Korean lenis / fortis / aspirated consonants (f. ex.; ㅂ 〔b〕 / ㅃ 〔p〕 / ㅍ〔ph〕, ㄱ 〔g〕 / ㄲ 〔k〕 / ㅋ 〔kh〕)) opposition. The other very important factor is palatalization which is of vital importance in Polish and, because of this, Polish speakers are extremely sensitive to it. In Korean palatalization is not important phonetically and Korean speakers do not distinguish between palatalized and non-palatalized consonants. The transcription used here is based on ' The principles of the International Phonetic Association and the Korean Phonetic Alphabet ' (1981) by Hyun Bok Lee.

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An empirical investigation on the information service systems of the theses of Korean medicine (한의학 학위논문 정보서비스 실태에 대한 조사연구)

  • Choi, Hwan-Soo;Nam, Bong-Hyun
    • Korean Journal of Oriental Medicine
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    • v.8 no.1
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    • pp.45-53
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    • 2002
  • Objectives : On the internet, the bibliographic information service systems of the theses for the degree of Korean medicine(KMT) have been builded by the National assembly library, the National library of Korea and the eleven central libraries of eleven colleges of Korean medicine in Korea(KMU). Because there was a lot of information of Korean medicinal research & development(R&D) in those KMT, the MKT are most valuable in the Korean medicinal R&D. This study was carried out to understand and analyze the information service systems of the theses of Korean medicine provided by those libraries. Methods : We collected the bibliographic information of KMT on the internet in the National assembly library, the National Library of Korea, KMU, and some references of KMT, and then made a comparison between the bibliographic information of KMT and those KMU about the simpleness of searching and the accuracy of the contents. Results : Many of the Korean medicinal information service systems of KMU are poor on the simpleness of searching and the accuracy of the contents. On the accuracy of the contents, the bibliographic information service systems of KMT mistakes about 20% because of misusing of a Chinese character, a rule of the initial sound of a syllable of the Korean alphabet, and an erroro of the term day on KMT.

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King Sejong's Invention: Korean Characters and Real-time Korean Information Network (세종대왕의 발명: 한글과 실시간 한민족 정보 네트워크)

  • Kim, Yung-Bok
    • The KIPS Transactions:PartA
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    • v.10A no.5
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    • pp.463-468
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    • 2003
  • The Internet, especially the mobile Internet influences enormously in many areas in human societym espeially in terms of the exchanging speed of knowledge and information. This new society of knowledge and information will introduce many new types of services based on valuable knowlwdge and information. Among many new services in this mobile computing environment, the real-time worldwide korean information networking service using the Korean characters invented by the mobile computing environment, the real-time worldwide Korean information networking service using the Koean characters invented by the King Sejong is possible ubiquitously with wired and mobile Internet. We studied the user interface with Korean characters in the mobile computing environment, and introduce the useful results with new metrics of performance analysis after real implementation for real-time Korean information networking using Korean domain names.