• Journal of applied mathematics & informatics
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• v.2 no.2
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• pp.47-52
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• 1995

in this paper we reduce the trading strategy of discounted security model to trading strategy of original model

• Journal of applied mathematics & informatics
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• v.3 no.1
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• pp.79-88
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• 1996

In this paper we define a new short exact sequence of automata and we investigate module-like properties on projective and injective automata

• The Journal of Korean Association of Computer Education
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• v.20 no.4
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• pp.37-46
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• 2017

Since 2018, the level of informatics education that is mandatory in junior high schools depends on the subject matter expertise of Informatics & Computer teachers. The purpose of this study is to analyze whether secondary teacher training institutes provide curriculum that guarantees the subjectivity of Informatics & Computer teachers. In order to achieve the goal, this study first compares curriculum courses for educating Informatics & Computer teachers of Korea secondary teacher training institutes with subjects based on the content system of J07-CS, the informatics education in Japan. Second, we compare the basic subjects offered by the Ministry of Education with the vocational subjects. Third, we analyzed the basic subjects of each university. As a result of the study, the number of informatics-related courses opened by Korean secondary teacher training institutions was insufficient compared to the number of subjects in J07-CS. Even though the standard of comparison was limited to basic subjects, the content elements were insufficient, and the ratio of the basic subjects of each university was low. In order to achieve the goal of informatics education from 2018, it is urgent to improve the curriculum of secondary education teachers.

• The Journal of Korean Association of Computer Education
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• v.23 no.3
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• pp.1-8
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• 2020

Korean 8-grade-students who participated in the ICILS 2018 were educated in the 2009 revised curriculum, where the 'Informatics' subject was an optional course in the regular curriculum. In order to closely analyze the ICILS 2018 results, it was necessary to take into account the situation in Korea that related educational experiences may differ among students. This study surveyed the students' educational experiences related to Informatics subject in the context of individual and schools. The average scores of computer and information literacy (CIL) and computational thinking (CT) of the ICILS 2018 were analyzed and compared by students' educational experiences. As a result, the average CT score of students who experienced the coding and programming education was higher than those who did not. Also, the more time students took the Informatics subject, the higher the average CT scores were. Based on these results, this study discussed implications in terms of expanding computational thinking education for elementary and secondary education.

• Journal of Engineering Education Research
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• v.15 no.5
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• pp.31-35
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• 2012

A new obligatory subject, Computer Programming IV, is organized in the Department of Informatics, Faculty of Engineering, Yamagata University. The purposes of the subject are as follows: (1) Attachment to each laboratory for bachelor thesis was usually at the initial stage of the student's fourth academic year. This subject actually moves up the attachment because students are tentatively attached to a laboratory for this subject. The interval to complete their bachelor thesis is extended by half a year. (2) In each laboratory, students cooperate with each other to complete their project. The project becomes capstone design which JABEE (Japan Accreditation Board for Engineering Education) is recently emphasizing. We not only explain the introduction of this subject, but also report some case studies.

• Journal of applied mathematics & informatics
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• v.1 no.1
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• pp.1-12
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• 1994

We consider a single channel CSMA/CD system with D homogeneous stations and impeded buffer of infinite size. We find a sufficient condition for the model to be stable under the threshold control policy and derive the limiting distri-bution of the number of messages in the system at the moment of service completion. We also derive the limiting distributing of the number of messages in the system size at arbitrary time by using Markov regenerative processes. Some numerical examples and special cases are also treated.

• Genomics & Informatics
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• v.17 no.2
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• pp.16.1-16.4
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• 2019

Medical Subject Headings (MeSH), a medical thesaurus created by the National Library of Medicine (NLM), is a useful resource for natural language processing (NLP). In this article, the current status of the Japanese version of Medical Subject Headings (MeSH) is reviewed. Online investigation found that Japanese-English dictionaries, which assign MeSH information to applicable terms, but use them for NLP, were found to be difficult to access, due to license restrictions. Here, we investigate an open-source Japanese-English glossary as an alternative method for assigning MeSH IDs to Japanese terms, to obtain preliminary data for NLP proof-of-concept.

• The Journal of Korean Association of Computer Education
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• v.19 no.5
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• pp.27-40
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• 2016

Changes in education or curriculum are based on the needs of the times and needs to address changes in knowledge. The purpose of this study was to provide implications regarding the general guidelines of the national curriculum by analyzing changes made in the high school informatics curriculum in which both needs are inherent. The study involved an analysis of the general guidelines to the national curriculum that involved the revision years 2007 and 2009, the composition of the 2015 revised curriculum, change in the status of the informatics curriculum, and the size of the informatics subject. As a result of the analysis it was found that several improvements are necessary, namely (1) the units need to be better clarified, (2) career electives need to be more appropriately composed, and (3) definitions of terms need to be better clarified. The significance of this study lies in the fact that it considered the viewpoint of software education emphasized in various countries around the world, and the general guidelines to the national curriculum were examined to learn what kind of organization and operation should be proposed for high school informatics.

• The Journal of Korean Association of Computer Education
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• v.20 no.5
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• pp.1-14
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• 2017

The informatics in the 2015 revised national curriculum has established the identity as the core subject for the intelligent information society. However, while the nature, objective, scopes and contents, and achievement standards of the curriculum are systematic, there is a lack of research on effective teaching and learning, and assessment methods. This study analyzed the applicability of Bebras Challenge, which began in Lithuania in 2004 and has been attracting attention as a new informatics education model with 1.3 million students as participants in 2015 around the world. Furthermore this research presented related issues for the indigenization of Bebras Challenge. This study will be a basis for the research of teaching and learning, and assessment models as well as the spread of Bebras Challenge.

• Journal of applied mathematics & informatics
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• v.2 no.1
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• pp.17-24
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• 1995

In this paper we shall prove a new fuzzy continuous selec-tion theorem in a compact convex set and next a fixed point theorem for fuzzy mappings is established.