• Journal of Educational Research in Mathematics
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• v.25 no.3
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• pp.303-321
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• 2015

This research purposes to find out the mathematical cognitive characteristics of Korean students and compare it with that of TIMSS 2011 high-achieving countries based on the Cognitive Diagnostic Theory. Based on framework and questions of TIMSS 2011, we select cognitive attributes. Using the data of 8th grade students' mathematical achievement in TIMSS 2011, we compare and analyze the top 15-countries students' cognitive traits. As a result, cognition domain of TIMSS 2011 is reclassified as 9 cognitive attributes. we could distinguish between easy attributes and difficult attributes that students in each country relatively think. Especially, Students of Korea relatively think Recall/Recognize, Compute, Classify/Measure and Represent are easy. On the other hand, relatively they have difficulties in Retrieve, Implement, and Generalize. Based on this research result, It is necessary to establish an educational measures for each attributes which students have difficulties.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.119-127
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• 2014

As the disclosure of privacy information has grown steadily, concerns about mobile services based on the personal information also increased. We aspired to reveal factors influencing the use of Location-Based services(LBS) App and analyse how the perceived risk affected between these factors and the use of LBS App. Results showed that usefulness and social influence influenced on the use of LBS App. We also found that the group who highly recognized the perceived risk was highly affected by usefulness and the group who lowly recognized the perceived risk was highly affected by social influence. Findings show that the company's strategy should be different depending on the level of consumers' perceived risk.

• Korean Journal of Cognitive Science
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• v.3 no.2
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• pp.271-289
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• 1992

In this paper,a cursive on-line Hangul recognition system which permits cursive writing between graphemes is presented.In general,the recognition of cursive Hangul writing has a difficulty of graheme segmentation and a complexity in matching procedure due to the increasing number of character candidates.To manage efficiently these problems,we propose a double segmentation method.Based on this segmentation,a recognition algorithm based on the line segment matching is proposed.Through the experimental result,it is show that the proposed recognition method is suitable for the cursive Hangul writings.

• Journal of Korean Society of Transportation
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• v.25 no.5
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• pp.7-14
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• 2007

The purpose of this study is to investigate the differences between the service providers and the users of 3PL services, in their perceptions about the qualities. The results of analysis identified five elements of the quality of 3PL services: reliability, efficiency, tangibility, responsiveness, and timeliness. The perceived importance and satisfaction showed the significant differences between 3PL service providers and the clients for all of the five elements. With respect to importance, efficiency showed the largest cognitive difference. Timeliness appeared to be the most important element perceived by both the service providers and the users. In terms of satisfaction, responsiveness indicated the biggest cognitive difference. In addition, it was noticed that the clients' satisfaction levels were particularly low, with respect to responsiveness and efficiency. It must be a strategic task of the 3PL service provider to improve customer satisfaction by reducing those cognitive differences.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.254-255
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• 2015

지금까지 해양사고 예방을 위해 선박설비 개선, 운항요건 강화 등 하드웨어적인 측면 개선에 주력하였지만, 선박을 운항하는 인적요인에 의해 발생하는 문제점을 최소화하는 것이 필수적이다. 선박조종시뮬레이션은 수행 횟수가 많을수록 조종성능에 익숙해짐에 따라 통계적 유의성의 문제가 발생한다. 본 연구는 인지 시뮬레이터의 개념도에 대해 소개하고자 한다. 고정된 항로가 아닌 랜덤하게 변하는 항로 조건에서 해기사가 어떻게 대응하는지 상황인식에 대한 여러 요소들은 항해 수행에 근저하는 인간 요인의 규명에 중요한 기초자료를 제공할 것으로 판단된다.

• Journal of the Korean Chemical Society
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• v.43 no.1
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• pp.110-118
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• 1999

In this study, the instructional influences of the conceptual change model based on the cognitive conflict and the conceptual change model emphasizing the social consensus were investigated. The subjects were 109 7th-graders in a boys' middle school in Seoul, and were taught about the changes of states, density, and dissolution for 8 class periods. The hypotheses provided in the instructions were constructed from the results of a pilot test. Prior to the instructions, three tests regarding the perceptions of discussion, the attitudes toward science instructions, and the perceptions of participation were administered. Two types of the conceptual change instructions and the traditional instruction were used in the treatment groups and the control group, respectively. After the instructions, the students' achievement, the conceptions, the perceptions of discussion, the attitudes toward science instructions, and the perceptions of participation were investigated. ANCOVA results revealed that the scores of the treatment groups were significantly higher than those of the control group in the achievement test. Although the score of the treatment group using the conceptual change model emphasizing social consensus were higher than those of other groups in the conceptions test, the differences were not statistically significant. The perceptions of discussion were significantly more positive in the treatment group using the conceptual change model emphasizing social consensus than in the control group. However, there were no significant differences in the scores of the attitudes toward science class and the perceptions of participation among the three groups. Educational implications are discussed.

• 한국IT서비스학회:학술대회논문집
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• 2007.05a
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• pp.506-506
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• 2007

유비쿼터스 환경 하에서 새로운 첨단 핵심기술 및 서비스가 하나의 제품 안에 집중되어가는 시대적 요구가 대두되고 있다. 이에 부응하여 탄생한 컨버전스 제품인 텔레매틱스의 전망 역시 두드러지고 있다. 본 연구는 Davis[14]가 제안한 기술수용모델(Technology Acceptance Model:TAM)을 통하여 텔레매틱스 사용의도에 관한 수용모형을 제시하였다. 기술수용모델의 내부 요인인 사용의도, 인지된 유용성과 인지된 이용용이성 외에도 업체 신뢰도, 정황 인식성, 자기 효능감의 외부 요인으로 확장하여 요인 간의 구조적 관계를 위한 모형을 개발하였다. 실증분석을 한 결과 정황 인식성, 자기 효능감이 각각 인지된 유용성과 이용용이성에 영향을 미치는 것으로 나타났다. 이러한 결과를 토대로 텔레매틱스의 이용자에게 중요시 되는 특성에 대해 논의하였다.

• Korean Journal of Cognitive Science
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• v.23 no.4
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• pp.457-485
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• 2012

The current study explores how media modality and message frame interact to form individuals' affective risk perception and behavioral intention. Specifically, participants were exposed to positive and negative messages on irradiated foods in text, audio, and audio/video formats and their affective risk perception and purchase intention were measured. Results indicate that individuals' affective risk perception and purchase intention were influenced by media modality and message frame. The significant interaction effects between the two variables were also observed. The results indicate that the appropriate media modality should be carefully selected based on the message content for effective risk communication.

• Information Systems Review
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• v.18 no.3
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• pp.185-207
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• 2016

This study investigated the relationship between privacy policy awareness and willingness to provide personal information. Online privacy policies published on the Internet aim to build the trust of consumers and reduce their concerns about the provision of providing personal information. This study uses FIP(FIP; Fair Information Practices) principles to measure awareness of privacy policy. The result of the survey indicates significant relationships among awareness of privacy policy of e-commerce websites, privacy trust, and privacy risk. Privacy policy aims to improve transparency of collection and use of personal information. A high level of privacy trust is related to a high level of willingness to provide personal information on an e-commerce website. A low level of privacy risk is related to a high level of willingness to provide personal information on an e-commerce website. This study found that disposition to trust moderates the relationship between privacy policy awareness and privacy trust. This study contributes to further research on the relationships among privacy policy awareness, privacy trust, and privacy risk. The result of this study can be used by companies that aim to build privacy trust and reduce privacy risk.

• The Journal of the Korea Contents Association
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• v.14 no.12
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• pp.1058-1068
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• 2014

The purpose of this study is to analyze the role of physical education to solve school violence. In order to do this, we took a sample size of 590 middle school students from city D by using the simple random sampling, allowed them to answer open questions recognizing the relationship between physical education and school violence, and then conducted an inductive category analysis of the data. As a result, it was found that there are both positive and negative reponses towards physical education and school violence. First, the positive responses were classified into 8 subcategories and 4 major categories(the social factors, psychological factors, physical factors, and environmental factors). On the contrary, the negative responses were classified into 6 subcategories and 4 major categories(personal experience, structural elements, cognitive factors, and environmental factors).