• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2008년도 정보통신설비 학술대회
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• pp.150-154
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• 2008

통신기술과 컴퓨터기술의 발전으로 새로운 전기통신 서비스가 개발 보급되고, 그 예로 도난, 화재, 가스 유출 등 가정 안에서 일어나는 각종 위급상황을 해당관서에 자동으로 알려주는 원격 안전관리시스템의 중요성과 인력 검침에 따른 노동력 확보문제나 효율적이고 경제적인 검침에 따른 운용방안이 요구되는 시점에서 원격검침 시스템(AMRS)의 필요성이 더욱 대두되고 있다. 본 논문에서는 각각의 원격 검침 시스템의 사용된 통신 방식을 비교하고 원격 검침시스템의 국내 외 기술 개발 동향 및 앞으로의 발전방향을 모색하였다. 이에 고유가시대의 검침비용을 절감하고 고객 서비스 향상 방안에 도움이 되고자 한다.

• 전기학회논문지
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• 제58권11호
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• pp.2269-2274
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• 2009

Customer clustering method is used to make a TDLP (typical daily load profile) to estimate the quater hourly load profile of non-AMR (Automatic Meter Reading) customer. In this paper, repeated small-sized clustering method is supposed to improve the classifying ability of TDLP. K-means algorithm is well-known clustering technology of data mining. To reduce the local maxima of k-means algorithm, proposed method clusters average load profiles to small-sized clusters and selects the highest error rated cluster and clusters this to small-sized clusters repeatedly to minimize the local maxima.

• 한국어교육
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• 제23권1호
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• pp.77-100
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• 2012

This study investigates issues in relation to text segmenting, in particular, line breaks in Korean language textbooks. Research on L1 and L2 reading has shown that readers process texts by chunking (grouping words into phrases or meaningful syntactic units) and, therefore, phrase-cued texts are helpful for readers whose syntactic knowledge has not yet been fully developed. In other words, it would be important for language textbooks to avoid awkward syntactic divisions at the end of a line, in particular, those textbooks for beginners and intermediate level learners. According to our analysis of a number of major Korean language textbooks for beginner-level learners, however, many textbooks were found to display line-breaks of awkward syntactic division. Moreover, some textbooks displayed frequent instances where a single word (or eojeol in the case of Korean) is split between different lines. This can hamper not only learners' learning of the rules of spaces between eojeols in Korean, but also learners' development in automatic word recognition, which is an essential part of reading processes. Based on the findings of our textbook analysis and of existing research on reading, this study suggests ways to overcome awkward line-breaks in Korean language textbooks.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(5)
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• pp.103-106
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• 2002

This paper has studied a remote AMR(Automatic Meter Reading) system using the power line and the telephone line as a communication media and the digital power meter. In the developed system, because we have used the power line and telephone, the facility is very easy and then its cost is not expensive. The system includes following elements: a digital power meter, an indoor communication system using a power line modem and a telephone line interface system for sending data to the utility company.

• 한국컴퓨터산업학회논문지
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• 제9권1호
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• pp.21-28
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• 2008

본 논문에서는 입술 주위 영상만으로 독화를 위한 에지 파라미터를 추출하였고, 한국어 5모음 'ㅏ/ㅔ/ㅣ/ㅗ/ㅜ'를 인식하는데 효과적임을 보였다. 발화하는 입주위의 이미지를 $5{\times}5$로 나누고, 각 영역에 소벨 연산자를 적용하여 디지털 에지 수를 구한 후, 이 값들의 관찰 오차를 정규화를 통하여 수정하고, 정규화 된 값을 파라미터로 사용하였다. 파라미터의 견인성을 확인하기 위하여, 자동 독화 시스템을 구축하였다. 인식 실험에 정상인 50명이 동원되었고, 10명의 이미지로 분석하고, 다른 40명의 이미지로 인식 실험을 하였다. 500개의 데이터를 분석하고, 이 분석을 바탕으로 신경망 시스템을 구축하였으며, 400개의 데이터로 인식 실험하였다. 신경망 시스템의 최고 인식 결과는 91.1%였다.

• Advances in nano research
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• 제12권2호
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• pp.197-212
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• 2022

The purpose of this study is to develop an automatic software system for bone age evaluation and to evaluate its accuracy in testing and feasibility in clinical practice. 20394 left-hand radiographs of healthy children (2-18 years old) were collected from China Skeletal Development Survey data of 1998 and China Skeletal Development Survey data of 2005. Three experienced radiologists and China-05 standard maker jointly evaluate the stages of bone development and the reference bone age was determined by consensus. 1020 from 20394 radiographs were picked randomly as test set and the remaining 19374 radiographs as training set and validation set. Accuracy of the automatic software system for bone age assessment is evaluated in test set and two clinical test sets. Compared with the reference standard, the automatic software system based on RUS-CHN for bone age assessment has a 0.04 years old mean difference, ±0.40 years old in 95% confidence interval by single reading, a 85.6% percentage agreement of ratings, a 93.7% bone age accuracy rate, 0.17 years old of MAD, 0.29 years old of RMS; Compared with the reference standard, the automatic software system based on TW3-C RUS has a 0.04 years old mean difference, a ±0.38 years old in 95% confidence interval by single reading, a 90.9% percentage agreement of ratings, a 93.2% bone age accuracy rate, a 0.16 years of MAD, and a 0.28 years of RMS. Automatic software system, AI-China-05 showed reliably accuracy in bone age estimation and steady determination in different clinical test sets.

• 한국정보통신학회논문지
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• 제11권10호
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• pp.1886-1893
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• 2007

국내에서는 아직 보편화 되고 있지 않은 AMR(Automatic Meter Reading)시스템과 수동검침에서 검침한 데이터에 대한 효율적인 운영과 관리를 위해서 더욱 많은 노력이 요구되고 있으며 커져가는 고객의 불만에 대해서 가장 적절한 불만해소 방법으로 정확한 데이터 검침으로 고객의 불만을 만족으로 극대화할 수 있어 야 한다. 이를 위해서 고객의 불만해소와 신뢰성 있는 검침을 해야 할 것이다. 본 논문에서는 수동검침에 대한 검침 데이터의 신뢰성 추천을 위한 데이터마이닝기법(사례기반추론)과 고객관계관리(CRM : Customer Relationship Management)를 확충한 기반으로 한 mCRM(Mobile CRM)시스템을 설계하였다. 제안한 시스템은 mCRM시스템을 통해 고객의 사용 데이터 패턴을 비교하여 유사값(최대값과 최소값)에 벗어나는 검침데이터가 발생했을 때 각 고객에게 이 사실을 모바일로 관리하여 검침 데이터에 대한 신뢰성을 높여 주고 관련 기업에서 추가비용의 부담으로 원격 검침시스템을 구축하지 못할 때 고객에 게 신뢰성과 효율성을 줄 수 있는 mCRM시스템을 설계하고자 한다.

• 한국생산제조학회지
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• 제5권3호
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• pp.22-30
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• 1996

In order to compensate for out-of-straightness of shafts, an automatic straightening process composed of an automatic measuring module, an automatic control unit and operating softwares was developed with a hydraulic press. The out-of-sraightness of each shaft was measured automatically in the measuring stage. An optimal pressure point was determined to minimize TIR value of the shaft according to press count of 3-points bending process. In the geometric adaptive control procedure, punch stroke and springback of the shaft were predicted by an observer using on-line measured values of press force and deflection amount I each press count. An automatic straightening machine was realized with the measuring module, the GAC module, PLD, IBM-PC and the operating software on the hydraulic press. the validity of the proposed straightening process was confirmed through a series of experiments with cam shafts.

• 한국멀티미디어학회논문지
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• 제20권2호
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• pp.330-335
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• 2017

We have heard about several keywords of the fourth industrial revolution such as automation, artificial intelligence and connectivity. And electronic publishing systems and ebooks will enable us to experience a new industrial revolution without discrimination. On that level, it is necessary to study a method of automatic accessibility tool for electronic publishing. There are some studies on accessibility standard specifications, accessibility guidelines, and accessibility certificate criteria. but there is little research about automatic inspection tools in electronic publishing area. This paper proposed a library for accessibility inspector of EPUB and its components based on IDPF EPUB accessiblity guidelines and TTA accessibility certificate criteria for reading disabled people. After implementing the library that can be connected to SIGIL, which is the most widely used in Korea, we verified its functionality and its coverage with Korean commercial EPUB files.

• 대한교통학회:학술대회논문집
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• 대한교통학회 1998년도 Proceedings The 4th International Transport Symposium
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• pp.100-107
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• 1998

With the rapid development of Urban Mass Transit in China, the Intelligent Transport System becomes inevitable. Based on the brief introduction of the blueprint of Urban Mass Transit in Shanghai, this paper analyses in detail the components and functions of Automatic Train Control (ATC) system applied in Shanghai Metro, presents the key technology of the main three subsystems of the ATC system : Automatic Train Supervision (ATS) subsystem, Automatic Train Protection (ATP) subsystem, Automatic Train Operation (ATO) subsystem. After reading this paper, you will have an general grasp of ATC system. At the end of the paper, it suggests a good resolution about the ATC system equipment to be made in China. If you are interested in the resolution, we'd like to exchange our thought.