• The Journal of Korean Association of Computer Education
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• v.11 no.1
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• pp.65-74
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• 2008

In this paper, we introduce an analysis system for answer dataset by using a data mining method. We analyze students' answer data collected from a test including multiple choice question items, and find associations between the items. Analysis of evaluation results based on our system will not only provide correct information on students' achievement levels but also provides a basis for modifying weaknesses of the evaluation procedures, question items, or teaching/learning procedures. Furthermore, it will enable us to improve the quality of question items for future use so that we can secure itemsets of high quality.

• Journal of the Korea Computer Industry Society
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• v.9 no.5
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• pp.191-196
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• 2008

The purpose of this study is to investigate the effect of number representation activities using computer software on young children's ability in mathematics. The effect of the number representation activities using computer software will be shown differently according to the age. The effect of the number representation activities using computer software will be shown differently according to the genders. The result of this study has shown that it gives a positive influence to the young children's mathematical ability.

• The monthly packaging world
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• s.242
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• pp.100-109
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• 2013

해양수산부(장관 윤진숙)는 위험물의 분류기준을 국제기준과 동일하게 적용하고 위험물질 운송에 따른 안전성 제고를 위해 "위험물 선박운송 기준"을 개정하여 시행한다고 밝혔다. 개정된 기준은 국제적으로 적용되는 "국제해상위험물규칙"(IMDG Code)의 최근 개정내용을 반영하고, 위험물 및 화물구역의 종류별 방화장치 요건을 강화하여 위험화물로 인한 선박의 화재 및 폭발 사고가 감소될 것으로 기대된다. 특히, 위험물 운송 용기를 용기의 종류, 재료 및 형태별로 구분하고 외관, 구조 및 성능검사로 세분하여 위험물 용기 검사체계를 효율화함으로써 민원인의 편의를 도모하였으며, 또한, 국제기준에 따라 자동차를 일반선박이나 컨테이너에 수납하여 운반하는 경우 위험물로 분류되어 위험물수납 검사대상이 된다. 본 고에서는 "위험물 선박운송 기준" 일부 개정(안)에 대해 살펴보도록 한다.

• Proceedings of the KOSOMBE Conference
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• v.1993 no.05
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• pp.94-97
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• 1993

퍼지규칙에 기반을 둔 간기능검사 자동 분석 시스템을 제안하였다. 전문의의 지식과 경험을 수리화한 소속함수를 설정한 후 4가지의 간질환이 있는 118명의 환자를 대상으로 측정된 6종목의 간기능검사 결과에 적용하여 80%의 높은 적중율을 얻었다. 질환별 적중향상은 전문의가 판정한 때 예상되는 것과 일치하였다. 본 연구에서 제안하는 시스템은 유사한 상황의 모든 진단시스템에 동일하게 적용할 수 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.163-165
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• 2004

HTML의 ＜TABLE＞ 태그는 연관된 정보를 기술하기 위한 테이블은 물론이고 웹 문서의 레이아웃을 표현하기 위하여 사용된다 본 논문에서는 웹으로부터 유용한 정보를 추출하기 위한 목적의 일환으로 HTML 문서로부터 테이블을 식별하는 효율적인 방법을 제안한다. 제안된 방법은 전처리와 속성-값 연관관계에 추출의 두 단계로 구성된다. 전처리 단계에서는 진짜 테이블 또는 레이아웃용으로 사용된 ＜TABLE＞ 태그의 일반적인 특징을 반영한 규칙을 적용하여 진짜 또는 가짜로 명확히 식별이 가능한 ＜TABLE＞ 태그를 추출한다. 속성-값 연관관계 추출 단계에서는 테이블 영역을 속성 및 값 영역으로 구분한 후. 값 영역에 대하여 구문적 일관성 검사를 수행한다 또한 값 영역의 크기가 작아서 구문적 일관성 검사를 수행할 수 없는 경우, 속성-칸 영역의 의미적 일관성을 검사한다. 제안된 방법의 성능을 명가하기 위하여 1,393개의 HTML 문서로부터 추출한 11,477개의 ＜TABLE＞ 태그를 대상으로 실험한 결과. 평균적으로 97.54%의 정확률과 99.22%의 재현률을 보여 기존 연구보다 우수하였다.

• Journal of KIISE:Software and Applications
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• v.32 no.12
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• pp.1283-1291
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• 2005

One of the problems in boosting Java performance using a Just-in-Time (JIT) compiler is removing redundant array bound checks. In conventional static compilers, many powerful algorithms have been developed, yet they are not directly applicable to JIT compilation where the compilation time is part of the whole running time. In the current JIT compilers, we tan use either a naive algorithm that is not powerful enough or an aggressive algorithm which requires the transformation into a static single assignment (SSA) form of programs (and back to the original form after optimization), thus causing too much overhead not appropriate for JIT compilation This paper proposes a new algorithm based on an inequality graph which can eliminate array bounds check codes aggressively without resorting to the SSA form. When we actually perform this type of optimization, there are many constraints in code motion caused by the precise exception rule in Java specification, which would cause the algorithm to miss many opportunities for eliminating away bound checks. We also propose a new method to overcome these constraints.

• Therapeutic Science for Rehabilitation
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• v.9 no.1
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• pp.91-99
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• 2020

Objective : The purpose of this study was to investigate the effects of the IOPI articulator strength training program on articulator(tongue and lip) muscle strength, numbers of /l, s, ʨ/ articulation accuracy, articulatory numbers, articulation regularity and accuracy in the alternate motion rates, and sequential motion rate changes in patients with spastic dysarthria. Methods : Three cases of patients with spastic dysarthria living in Jeju, Korea, were included in this study. A single subject design was selected to study changes in articulator(tongue and lip) muscle strength, numbers of /ㄹ, ㅅ, ㅈ/ articulation accuracy, articulatory numbers, articulation regularity and accuracy in the alternate motion rates and sequential motion rates. Results : After the articulator strength training program was conducted on patients with spastic dysarthria, there were positive changes in articulator(tongue and lip) muscle strength, numbers of /ㄹ, ㅅ, ㅈ/ articulation accuracy, articulatory numbers, articulation regularity and accuracy on the alternate motion rates and sequential motion rates. Conclusion : Our findings suggest that IOPI articulator strength training program could be very useful for the most representative childeren with cerebral palsy if conducted in various subtypes of dysarthric patients and linked with articulatory function training with IOPI at home.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.4
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• pp.783-787
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• 2012

It is not easy to find out syntactic error in a spelling checker systems of Korean, because the spelling checker is generally to correct each phrase and it cannot check the errors of contextual ill-matched words. Spelling checker system tests errors based on a words. Disambiguation of lexical ambiguities is important in natural language processing. Its outputs is used in syntactic analysis. For accurate analysis of a sentence, syntactic analysis system must find out the ambiguity of morphemes in a word. In this paper, we suggest several rules to resolve the ambiguities of morphemes in a word. Using these methods, we can reduce many lexical ambiguities in Korean.

• The KIPS Transactions:PartB
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• v.10B no.4
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• pp.389-396
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• 2003

In this paper, we present a Korean partial parser based on rules, which is used for running applications such as a grammar checker and a machine translation. Basically partial parsers construct one or more morphemes and/or words into one syntactical unit, but not complete syntactic trees, and accomplish some additional operations for syntactical parsing. The system described in this paper adopts a set of about 140 manually-written rules for partial parsing. Each rule consists of conditional statements and action statement that defines which one is head node and also describes an additional action to do if necessary. To observe that this approach can improve the efficiency of overall processing, we make simple experiments. The experimental results have shown that the average number of edges generated in processing without the partial parser is about 2 times more than that with the partial parser.

• The Journal of the Korea Contents Association
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• v.7 no.7
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• pp.114-123
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• 2007

The increasing use of computed tomography (CT) as a diagnostic tool creates the need from and efficient means of evaluating the performance of the CT scanner now in use. Accordingly, acceptance testing and quality assurance of CT is of great importance. The aim of this study is to analyze of AAPM CT performance phantom in the CT accreditation program. The modular phantom offers the CT system with which to measure eight performance parameters. The parameters are listed of CT attenuation coefficient of water, noise, uniformity, spatial resolution, contrast resolution, slice thickness (5 and 10 mm), artifacts and alignment. The phantom evaluation was done by two radiologists. The acceptance testing protocol described here in demonstrates the successful of the guidelines for the quality assurance using AAPM CT performance phantom. We need to be upgraded for the CT image quality and make the standard reference of the quality assurance in the CT.