• Proceedings of the Korean Information Science Society Conference
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• 2003.04d
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• pp.623-625
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• 2003

유무선 통합의 인터넷 환경을 지원하는 모바일 응용 서버는 휴대폰, PDA, PC 등 다양한 단말 종류를 타겟으로 한번 저작된 동일한 컨텐츠를 단말기 종류에 상관없이 지원할 수 있다. 모바일 응용 서버로 구축된 비즈니스 업무를 이용하는 사용자는 무선 인터넷의 간헐적 단절성, 업무의 긴급성, 표현 장치 및 입력 장치의 적절성, 업무의 이동성 등을 고려하여 적절한 단말 장치를 임의로 선택하여 비즈니스 업무를 수행할 수 있다. 또한, 이러한 비즈니스 업무들은 단말기 종류가 변하더라도 이전의 단말기에서 처리하였던 내용을 계속 이어 받아 업무를 진행시켜야 한다. 단일 단말기를 이용할 때에 페이지 간의 작업 내용을 저장하는 방식으로 세션 객체를 이용하는 방식이 널리 사용된다. 그러나 세션 객체는 유선 인터넷상의 단일 단말기만을 대상으로 만들어진 것이기 때문에 단말기를 변경하는 경우에는 세션을 이용할 수 없는 단점을 갖고 있다. 본 논문에서는 다중 단발기간에 세션 전이를 가능하게 하여 세션 객체에 저장되어 있는 정보를 다중 단말기간에 공유하는 방법에 대한 설계 내용 및 구현 상황에 대해 논하겠다.

• Proceedings of the Korean Society for Language and Information Conference
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• 2002.06a
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• pp.10-38
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• 2002

본고는 한국어 영형 대명사의 적절한 해석을 위해 개념적으로 전혀 새로운 이론을 제안한다. 일련의 다양한 제약들이 서로 연관되어 있음을 보인 후, 그러한 규칙의 다양성을 적절히 포착하기 위해 적절성 이론 (Optimality Theory)을 도입할 것을 제안하고, 그 토대 위에 다양한 제약들을 형식화한 후, 그 규칙들의 위계관계를 설정한다. 가장 우선순위를 갖는 제약으로 인접 요소간 어휘의미자질들이 일치해야 한다는 어휘의미제약(*Feature Mismatch)과 통사적 결속규칙을 의미론적으로 재해석한 결속원리 B(Principle B)를 선정한다. 그 다음 순위를 갖는 제약으로, 가능한 한 선행명사를 지칭하도록 요구하는 대용존중제약(DOAP: Don't Overlook Anaphoric Possibilities)과, 센터링 이론의 전이방식 개념을 도입하여 정의한 계속선호제약 (CONTINUE)을 제안한다

• Proceedings of the KIPE Conference
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• 2018.07a
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• pp.486-488
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• 2018

본 연구에서는 3상 EES(전기에너지저장시스템: Electrical Energy Storage) 시스템의 성능시험에 관한 내용을 소개 및 분석하고, 시험데이터를 통한 시험방법의 적절성에 관한 의견을 제시한다. EES 시스템의 단체표준 규격을 검토하기 전에, 전력변환장치의 단체표준규격 (SPS-SGSF-025-4-1972 : 2016)과 EES 시스템의 일반사항 및 시험방법을 제시하는 단체표준 규격 (SGSF-025-5-1, SGSF-025-5-2)에 각각 명시된 형식시험 항목을 상호 비교 및 분석하고, EES 시스템의 형식시험 항목 중 특정 항목은 시험을 수행하여 결과 데이터를 분석하고 규격내의 평가기준 및 시험방법의 적절성 여부를 고찰하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.591-592
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• 2020

본 연구에서는 코로나19 사태로 인해 대학교육에서 전면적으로 실시되고 있는 온라인 강의 환경에서 플립러닝의 학습효과를 규명하였다. 실시간 온라인 프로그래밍 수업에서 85명의 학습자를 대상으로 설문을 분석한 결과, 학습내용이해도에 대해서는 학습활동의 적절성이, 만족도에 대해서는 교수자지원과 학습내용의 적절성이, 역량향상도에 대해서는 교수자지원이 유의한 영향을 미치는 것으로 나타났다. 연구결과를 바탕으로 프로그래밍교육을 위한 실시간 온라인 강의에서 플립러닝 설계 및 운영 전략에 대한 시사점을 제언하였다.

• Journal of Food Hygiene and Safety
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• v.34 no.5
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• pp.489-494
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• 2019

The appropriateness of introducing blockchain technology into food safety management systems was evaluated by conducting a survey of experts on the effectiveness and constraint evaluation indicators, and a portfolio analysis was conducted to set the priorities of blockchain application. The food safety management activities considered in this study were issuing documents on food import/export, food hygiene rating scheme, civil complaint management in the food sector, food- related certification, risk information management, and food traceability systems. The sectors that can be expected to be effective in the introduction of blockchain technology were food- related certification, food hygiene rating scheme, risk information management, and issuing documents on food import/export. In the case of food traceability systems and civil complaint management, the introduction of blockchain technology was not recommended due to ineffectiveness. From the evaluation of the constraints (e.g., technical limits, cost, legal amendment, personal information disclosure, timeliness, and ease of connection) to be overcome when introducing blockchain into food safety management, it was found that there are more than average constraints in all six areas. In particular, the food traceability system was evaluated to have the most constraints. Issuing documents on food import/export is very effective with the introduction of blockchain technology, but due to high cost and legal restrictions, it is necessary to improve the institutional system in order to introduce blockchain. Among the evaluation sectors, food- related certification, food hygiene rating scheme, and risk information management on foods were suitable for preferentially adopting blockchain technology since these areas might experience greatly improved reliability and transparency through the introduction of blockchain, with relatively low constraints.

• The Korean Journal of Applied Statistics
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• v.26 no.1
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• pp.163-185
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• 2013

In this paper, we investigate the need to employ long-memory volatility models in terms of Value-at-Risk(VaR) estimation. We estimate the VaR of the KOSPI returns using long-memory volatility models such as FIGARCH and FIEGARCH; in addition, via back-testing we compare the performance of the obtained VaR with short memory processes such as GARCH and EGARCH. Back-testing says that there exists a long-memory property in the volatility process of KOSPI returns and that it is essential to employ long-memory volatility models for the right estimation of VaR.

• Journal of Korea Water Resources Association
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• v.54 no.7
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• pp.485-493
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• 2021

Groundwater is an important water resource that can be used along with surface water. In particular, in the case of island regions, research on groundwater level variability is essential for stable groundwater use because the ratio of groundwater use is relatively high. Researches using artificial intelligence models (AIs) for the prediction and analysis of groundwater level variability are continuously increasing. However, there are insufficient studies presenting evaluation criteria to judge the appropriateness of groundwater level prediction. This study comprehensively analyzed the research results that predicted the groundwater level using AIs for various regions around the world over the past 20 years to present the range of allowable groundwater level prediction errors. As a result, the groundwater level prediction error increased as the observed groundwater level variability increased. Therefore, the criteria for evaluating the adequacy of the groundwater level prediction by an AI is presented as follows: less than or equal to the root mean square error or maximum error calculated using the linear regression equations presented in this study, or NSE ≥ 0.849 or R² ≥ 0.880. This allowable prediction error range can be used as a reference for determining the appropriateness of the groundwater level prediction using an AI.

• Journal of The Korean Association of Information Education
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• v.20 no.6
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• pp.575-584
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• 2016

We compared domestic computer science curriculum with foreign curriculums in order to develop content for algorithm and programming education in elementary and secondary schools. The results show that the levels and ranges of information included in the practical arts and information subjects of the 2015 Revised Curriculum are insufficient when compared with those of England, India, and America. In this paper, we surveyed experts about the importance of content and the age-appropriate time to begin teaching algorithm and programming in schools. The surveys were conducted using questionnaires used in KAIE's software standard model. Except for algorithm evaluation, the experts largely believe all content areas of algorithm education are important. However, they had differing opinions about the best time to begin teaching this subject matter.

• Journal of the Korea Convergence Society
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• v.9 no.2
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• pp.125-136
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• 2018

The purpose of the study is to investigate dental health insurance coverage the awareness and dental health insurance coverage extension to scaling in service consumers. There were significant differences according to education level, age on the appropriateness of the age of yearly scaling benefit, and to married, regions, self-oral health of the frequency of yearly scaling benefit, who their teeth brushed frequence a day on the appropriateness of the fee of yearly scaling benefit. It implies that should be added to the coverage list national health insurance every age group after increasing periodontal disease. It is to be more extension as to age, frequency and fee health insurance coverage of scaling, the effort to improve dental health insurance coverage policy must be continue for oral health in the future.

• Korean Journal of Construction Engineering and Management
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• v.13 no.5
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• pp.76-83
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• 2012

The purposes of this study are both to identify suggestions regarding the evaluation framework of construction policy performance based on the analysis of the 4th Master Plan for Improvement of Construction Technology and to provide recommendations that can be used for developing the 5th Master Plan for Improvement of Construction Technology. In order to achieve this purpose, a questionnaire was distributed to construction industry-related professionals and makes them evaluate the performance of the 4th Master Plan for Improvement of Construction Technology by performance index appropriacy, measurement appropriacy, and target level. In addition, comprehensive literature review was implemented to extract important points, which are related to policy evaluation, that can be considered factors in developing the 5th Master Plan for Improvement of Construction Technology.