• The Journal of Korean Association of Computer Education
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• v.23 no.4
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• pp.23-33
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• 2020

Online judge provides compilation, execution, and immediate feedback on the source submitted by the learner, and ensures the accuracy and reliability of the evaluation, but it's difficult to select the language according to the level of the learner because most of them provide only textual language. In this study, a block language for online judge was developed and applied to high school classes, and the difference in self-efficacy between the block language and the textual language group was confirmed. It was found that Block language group have more ability expectation to overcome disgust experience than textual language group and Textual language group have significant decrease in ability expectation to start activity and to continue activity. It implies that Block language has an effect on self-efficacy for afterward programming activities, and methods of teaching, learning and evaluation should be devised in the case of textual language so that student's self-efficacy does not deteriorate at the initial and ongoing stage of activity. The results of this study are meaningful in that it provide various implications of methods for enhancing self-efficacy in high school class of programming.

• KIPS Transactions on Software and Data Engineering
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• v.8 no.8
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• pp.317-322
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• 2019

Programming judge systems for programming training support are typically built on the Web, where the examiners uploads a programming problem, which the student reads and submits an answer to the problem. The judge system executes the submitted answer of source code to provide feedback such as pass, failure, and error messages. Students who receive the feedback except for the pass continues debugging the source code until they are judged to pass. We developed an online judge system to support programming training and analyzed answers submitted by the students and found that many of the students who were not judged to pass that test did not know exactly where they were wrong but continued to solve the problem. The current judge system generally feeds runtime error messages back to students. However, with only runtime error message, it is difficult for student who train to find the wrong part of the answer. Therefore, in this paper, we propose a system that provides the feedback of programming failure by analyzing the control flow of the test cases used in the source code submitted by the student. The proposed system helps students find the wrong parts more quickly by feeding back the paths where faults in the control flow may exist. In addition, we show that this system is applicable to the answer source code that the actual student submitted.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.9 no.4
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• pp.23-36
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• 1999

As the blind signature(10) does not reveal any information about the message or its signature it has been used for preventing the information leakage and for providing the anonymity in secure electronic payment systems. Unfortunately this perfect anonymity could be misused by criminals as blind signatures prevent linking the withdrawal of money nd the payment made 표 the same customer. Therefore we should provide publicly verifiable mechanism if it is required for the judge to trace the blackmailed messages. In this paper we propose a modified blind signature scheme which additionally provides the role of message recovery after analyzing the existing meta-ELGamal scheme(12) suggested by Horster. And we suggest a new fair blind multi-signature scheme based on the oblivious transfer protocol with which a judge can publicly verify its fairness and correctness if needed. Proposed scheme can also applicable to the diverse electronic payment applications.

• The Journal of the Korean dental association
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• v.39 no.4 s.383
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• pp.316-323
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• 2001

• The Korean Journal of Applied Statistics
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• v.12 no.1
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• pp.191-202
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• 1999

본 논문에서는 n명의 judge들이 k개의 object들에 대해 순위를 부여하는 경우 얻어질수 있는 불완전 순위자료에서 object효과들이 같은지에 대한 검정법을 제안하고 컴퓨터 프로그램없이 쉽게 구현할수 있는 효과적인 알고리즘을 개발하였다. 그리고 기존의 평균순위법과 Monte Carlo 연구를 통하여 검정력을 비교하였다.

• The Journal of the Korean dental association
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• v.39 no.3 s.382
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• pp.215-228
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• 2001

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.10b
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• pp.129-134
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• 2000

In this paper, we proposed a simulator for reconstructing and analyzing vessel collision accidents happened at sea and we verified validity of the system by applying it to some collision accidents. This system will offer us to advantage of time and human power by contributing to automation of judge's decision.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.2
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• pp.233-241
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• 2012

The object of the project management is to succeed in the project. However, could you definitely judge that the result of project performance is a success? In addition, do both customer and developer agree with the result of your judgement? There are a lot of definitions and measure for the success and failure of the software development suggested, but there is no definite standard for the classification. This paper examines the measures in order to decide the development success and re-defines the success and the failure of the project. We suggest the measure and the standard that judge the project achievement based on these definitions. Applying the suggested measure and standard, it is possible to reduce arguments between the customer and the developer on the classification of the success and the failure.

• The Korean Society of Law and Medicine
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• v.9 no.1
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• pp.57-127
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• 2008

In medical malpractice lawsuits, negligence is generally defined as conduct that is culpable because it falls short of what a reasonable person would do to protect another individual from a foreseeable risks of harm. Thus, the essence of negligence is a breach of obligations to be attentive, and the breach of obligations to be is negligence. However, whether negligence is or not depends on time, place, litigation forms and the judge since the meaning of negligence is wavering on the basis of abstract and normative judgment. In this thesis, what is medical negligence, a breach of obligations of attention for a doctor in medical malpractice lawsuits, would be it further enacted that doctors have the responsibility to protect the patients as a subordinate duty due to a principle of faith and sincerity besides the main duty for medical contract-performance since the suit is a litigation form to be based on responsibilities of experts, especially doctors, though having factors that are non-contractual as a trait for medical treatment. Further on the concept, when the plaintiff asserts and proves a specific fact from the recent moderation of the burden of proof about medical malpractices, whether the court should find a true bill in medical malpractice actually or not has been discussed.

• Korean Journal of Logic
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• v.13 no.2
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• pp.61-82
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• 2010

The argument from ignorance that knowledge conclusion is derived from ignorance premises is claimed to be fallacious by many logicians such as I. Copi. According to them, some arguments from ignorance which seem to be acceptable are not really the arguments from ignorance. They say that such arguments have implicitly conditional knowledge premise. Against them, I argue that every argument from ignorance can be interpreted as having a hidden conditional premise, and that every argument from ignorance is not fallacious. I propose the criterion to judge which argument from ignorance is fallacious and which is persuasive. In particular, I argue that social contexts play a crucial role to judge whether a practical argument is fallacious or not.