• Proceedings of The KACE
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• 2017.08a
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• pp.47-49
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• 2017

인공 신경망 기반 자연어 처리 시스템들에서 단어를 벡터로 변환할 때, 크게 색인 및 순람표를 이용하는 방법과 합성곱 신경망이나 회귀 신경망을 이용하는 방법이 있다. 이 때, 전자의 방법을 사용하려면 시스템이 수용 가능한 어휘집이 정의되어 있어야 하며 새로운 단어를 어휘집에 추가하기 어렵다. 반면 후자의 방법을 사용하면 단어를 구성하는 문자들을 바탕으로 벡터 표현을 생성하기 때문에 어휘집이 필요하지 않지만, 추가적인 인공 신경망 구조가 필요하기 때문에 모델의 복잡도와 파라미터의 수가 증가한다는 단점이 있다. 본 연구에서는 위 두 방법의 한계를 극복하고자 Bag of Characters를 응용하여 단어를 구성하는 문자들의 집합을 바탕으로 벡터 표현을 생성하는 방법을 제안한다. 제안된 방법은 문자를 기반으로 동작하기 때문에 어휘집을 정의할 필요가 없으며, 인공 신경망 구조가 사용되지 않기 때문에 시스템의 복잡도도 증가시키지 않는다. 또한, 단어의 벡터 표현에 단어를 구성하는 문자들의 정보가 반영되기 때문에 Out-Of-Vocabulary 단어에 대한 성능도 어휘집을 사용하는 방법보다 우수할 것으로 기대된다.

• Journal of The Korean Association of Information Education
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• v.7 no.2
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• pp.141-151
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• 2003

The purpose of this study was to design and develop a multimedia program for elementary school students' emergent literacy teaching. The program aims at helping students improve their reading ability and enhance their letter decoding ability through drill-and-practice as well as tutorial instructional strategies. To that end, the instructional materials were reorganized so as to provide a basic syllable table and writing examples with standard pronunciation. The multimedia program is composed of three sections: basic literacy teaching, advanced literacy teaching, and evaluation sections. The implications of the study were discussed.

• Journal of Korean Ophthalmic Optics Society
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• v.5 no.2
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• pp.49-53
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• 2000

Comparing to an Image test chart which printed from computer. Hahn's standard test chart and Chart project test chart propose to make the program of an image test chart in computer. Test type of the test chart should be programed by difference size which was examined Hangul program of Hangul & Computer Co. An image test of visual acuity most decreased among 3 kinds of testing. Testing of Fixation disparity was same between Diplopia test and chart project test chart, so that. Design of test chart could be programed diverse by Hangul program of Hangul & Computer Co.

• Annual Conference on Human and Language Technology
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• 2018.10a
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• pp.559-560
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• 2018

순환 신경망(RNN) 기반의 Long Short-Term Memory(LSTM)는 자연어처리 분야에서 우수한 성능을 보이는 모델이다. 음성을 문자로 변환해주는 Speech to Text (STT)를 이용해 자막을 생성하고, 생성된 자막을 다른 언어로 동시에 번역을 해주는 서비스가 활발히 진행되고 있다. STT를 사용하여 자막을 추출하는 경우에는 마침표가 없이 전부 연결된 문장이 생성되기 때문에 정확한 번역이 불가능하다. 본 논문에서는 영어자막의 자동 번역 시, 정확도를 높이기 위해 텍스트를 문장으로 분할하여 마침표를 생성해주는 방법을 제안한다. 이 때, LSTM을 이용하여 데이터를 학습시킨 후 테스트한 결과 62.3%의 정확도로 마침표의 위치를 예측했다.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.10 no.3
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• pp.215-220
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• 2016

Music braille is made up of more systematic and various symbols compared with text braille. Therefore, the translation of braille music requires extensive knowledge of the music and the braille symbols. Because currently the computer program for the text braille has already developed, we don't need any help from the braille translator. However, the translation of music braille is hard without the help of a professional music braille translator, because the translation computer program is not perfect. The current situation is that the music braille translator reads the music score and translates it into the braille himself. In this paper, we designed and implemented the "Braille Music Converter", you can implement a person does not understand the braille translation into music braille well. It includes translation into text braille for the lyrics processing and rest, octave, key signature, time signature, tie, slur, repeat mark was confirmed that the successful conversion to the actual music score.

• Archives of design research
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• v.17 no.3
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• pp.209-220
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• 2004

Folk painting was prevalent among working classes in the cultural territory of chinese characters including Korea, Japan, and Vietnam. Other than Gilsangmunja-do(lucky and vulgar illustrated Chinese Character), the most popular of its kind, there are various types of different Munja-do(illustrated Chinese Character) which is more shaped/modeled. Chinese Nianhua style was popular in various parts of China from late Ming Dynasty to early Qing Dynasty, and they were conveyed to neighboring countries after the 17th century, where they adopted unique tradition of each country. Acquiring theme from Chinese characters, these Chinese Nianhua or Munja-do are designed by making images into characters or characters into images. They express the invisible 'Cosmological Taoism' as a visible shape and line. This kind of symbol system, using character as a subject matter, can only be witnessed in the cultural territory of chinese characters by the use of ideograms. It is worth of paying attention today because the uniqueness of each country's style reflects diverse life styles of the contemporary civilization. Specifically, values of Munja-do as a traditional culture may not be underestimated in today's society where culture has become the center of concern. Munja-do in Korea should be carefully examined since Korea has had a very unique Munja-do culture that cannot be found from other countries. Therefore, by comparing Munja-do styles of today's the cultural territory of chinese characters countries, we may enlighten ourselves on our tradition and flourish our cultural contents.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.18 no.9
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• pp.1358-1367
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• 1993

In this paper, OMR system based on image processing is developed which improve the performance of conventional OMR system based on line-scan method. Based on this OMR system, real-time OCR system which recognizes alphanumerics is also developed. We propose the OMCR system which recognize the mark and numerals at the same time. Besides, we improve the input system using constrained 7-segment type handwritten numeral instead of mark to solve the problem caused by miswriting the mark. In summary, we verified the reai-time recognition performance of developed OMCR system using application form for admission, answer sheet for college entrance examination and receipt sheet.

• Korean Journal of Remote Sensing
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• v.39 no.5_2
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• pp.799-810
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• 2023

This paper analyzed changes in population mobility characteristics based on emergency disaster messages related to wildfires that occurred in 2022, using mobile data. The primary wildfires under analysis are the ones that occurred in Donghae City and Miryang City. Donghae City sent a total of six evacuation messages in response to the wildfire incidents, and all of the message contents specified particular evacuation locations. As a result, it was analyzed that there was a significant impact on changes in population mobility characteristics. On the other hand, in the case of Miryang City, a total of five evacuation messages were sent during the wildfire period, but not all messages specified a clear evacuation location,such as "A safe place". As a result, it was observed that there was minimal change in population mobility due to the lack of clear evacuation locations specified in the messages. These analysis results suggest the need for institutional improvements such as the standardization and specification of emergency alert message content when wildfires or similar disasters occur in different regions.

• 전기의세계
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• v.43 no.12
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• pp.24-31
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• 1994

선진 외국에서 제공하는 각종 무선 데이타 서비스를 살펴보면 유럽에서는 이동 데이타 통신 및 서비스가 이미 상용화 단계에 있고, 이동 통신을 이용한 교통제어 시스템이 실용화되고 있으며 무선 데이타 통신망을 전국적으로 구축하여 행정, 사법, 공공사업등의 각종 서비스를 제공하고 있다. 또한, 이동통신 기술을 보유한 영국, 스웨덴, 미국, 일본 등에서는 음성 뿐만 아니라 비음성 통신 서비스에 필요한 기술등을 개발하여 이를 mobitex, mobifax, 문자표시행 pager등을 개발하는데 활용하고 있으며, 위성을 이용한 이동 데이타 서비스도 계획하고 있다. 따라서, 여기서는 이러한 무선 데이터 통신 기술의 주요 특징 및 동작원리에 대해 다루고자 한다.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.3
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• pp.249-265
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• 2016

The objective of this study is to analyze the characteristics of Cutter's Expansive Classification. The four elements about classification evaluation were applied to analyze it. Results show that first, from philosophy and religion class to literature class, the order of main classes is logical and evolutionary. Second, the notation is a pure notation including author mark. Third, the classification is expansive from first classification to seventh classification. Science classes were expanded in the second classification comparing to the first classification. From the third classification, all classes were expanded. Fourth, it was applied by the local list to indicate places emphasizing connection of geographical space.