• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.5
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• pp.1129-1140
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• 2018

In accordance with the spread of the Internet and the development of various digital devices, the amount of electronic information is rapidly increasing. Selection of electronic information seizure searches continues to increase for third parties, such as portal sites e-mails that persons do not possess directly from the electronic information, and it is also used as evidence in court. However, the current method of searching for houses has many problems such as the absence of notice of seizure search result, seizure searches are proceeded indiscriminately against whole e-mail after calculating only during the seizure period, and seizure search procedure And presented the improvement points.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.305-308
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• 2015

건설공사 사후평가는 공공건설사업 수행성과를 평가하고 차후 유사사업 추진 시 이를 활용하여 공공건설사업 효율화에 기여하기 위한 제도이다. 국토교통부에서는 발주청별로 실시하고 있는 건설공사 사후평가의 결과정보를 체계적으로 통합 관리하고, 이를 활용할 수 있도록 건설공사 사후평가 시행지침을 기초로 한 건설공사 사후평가시스템을 구축하여 운영 중에 있다. 하지만 사후평가 시행지침의 개정에 따라 입력양식 및 관리항목이 변경되고, 축적된 사후평가 결과정보의 분석기능 등의 부족으로 유사 건설사업 수행시 활용 체계가 미흡한 실정이다. 본 연구에서는 건설공사 사후평가 시행지침의 개정과 분석 및 통계기능 강화를 위해 따라 건설공사 사후평가시스템의 개선방안을 제시하고자 한다. 이를 통해 사후평가시스템의 활용도를 제고하고 유사 공공건설사업 수행시 시행의 효율성을 도모할 수 있으리라 예상된다.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06c
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• pp.53-57
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• 2010

현재 많은 포털 사이트에서는 인기가 있거나 중요도가 높은 키워드에 대해 정보를 제공해주는 태그 클라우드나 연관 검색어 등의 기능이 제공되고 있다. 하지만 대부분의 뉴스기사 페이지들은 날짜와 분야별로 기사들이 나열되어 있으며 사용자는 카테고리별로 나누어진 기사를 읽을 수만 있을 뿐 그 기사와 연관된 다른 기사의 정보에 대해서 한눈에 알아 볼 수 있는 방법은 미흡한 실정이다. 또한 연관 검색어 서비스도 사용자가 검색한 입력 내용을 기반으로 연관성 정도를 분석하여 객관성을 보장하지 못하고 있다. 본 논문에서는 기존의 태그 클라우드 방식에서 좀 더 나아가 축적된 뉴스 기사로 부터 검색 키워드와 밀접히 연관된 키워드를 추출하여 제공하는 기사 검색 시스템을 소개한다. 이 시스템은 사용자가 기사 검색을 하였을 때, 키워드와 가장 밀접한 기사를 검색해 주는 것뿐만 아니라 검색어와 관련된 연관 키워드들을 보여주고 연관된 키워드간의 관계성을 보여줌으로써 뉴스 기사들 속에 숨겨진 연관정보의 탐색을 가능하게 한다.

• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.269-279
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• 2018

The purpose of this research is to investigate how an elementary English class is presented in terms of communicative properties using COLT and TALOS because previous studies mainly used COLT. A lack of TALOS has shown on the previous studies. Also, this study takes a close look into whether the English class is communicative or not communicative since previous studies criticized in that elementary English classes are not communicative. For the purposes of this research, COLT part B and TALOS low-inference were used to analyze one elementary English class which had won the grand prize at English class contest. The result of this study revealed that the class is communicative in terms of high quantity and quality of students utterances, high ratio of students' discourse initiation, students' unpredictable information giving utterances and extension of utterances. Findings from this study revealed the good elementary English class characteristics of this class: students' participation, focus on affective atmosphere, students-directed activities, and unconscious internalization of target expressions through repetition.

• Information Systems Review
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• v.7 no.1
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• pp.115-136
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• 2005

Recently Internet portals contend with each other to expand their customer base by providing customers with a much amount of e-mail storage. But This strategy may not be successful because of customers' switching cost following site moving. Therefore, in order to reveal whether their strategy makes sense, this study investigates the direct and contingency factors affecting customer switching intension of e-mail services in portal sites. The research results show that attractiveness of alternatives, switching cost, and customer satisfaction have a significantly direct impact on customer switching intension of e-mail services. Also, attractiveness of alternatives alone has an moderated effect on customer switching intension but switching cost does not. Thus, Internet portals may reap the harvest from their recent aggressive action.

• The Journal of the Korea Contents Association
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• v.18 no.1
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• pp.305-313
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• 2018

Public open data is a database or electronic file produced by a public agency or government. The government is opening public data through the open data portals and individual agency websites. However, it is a reality that there is a limit to search and utilize desired public data from the perspective of data users. In particular, it takes a great deal of effort and time to understand the characteristics of data sets and to combine different data sets. This study suggests the possibility of interlinking between data sets by analyzing the common relationship of item names held by public data. The data sets are collected from the open data portal, and item names included in the data sets are extracted. The extracted item names consist of formal context and formal concept through formal concept analysis. The format concept has a list of data sets and a set of item name as extent and intent, respectively, and analyzes the common items of intent end to determine the possibility of data connection. The results derived from the formal concept analysis can be effectively applied to the semantic connection of the public data, and can be applied to data standard and quality improvement for public data release.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.550-559
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• 2015

Despite of the long history of comic industry in Korea, self-motivated sound ecosystem is not determinded due to the pirated contents. The file-sharing literature has focused mainly on how pirated contents could be eradicated, with less attention to the effective strategy. This research is focusing more on pirate comic market within the framework of users. The target user is people who pay for using file sharing site. The research methods are a online survey and a written interview. The goal of this research is to analyze the correlation between morality and websites uses, the user convenience of file-sharing site and the main factors for attracting user to legal portal site. According to our results, legal portal sites needs to improve purchasing factors such as diversity of contents, improvement of payment system and offer of a detailed information.

• Journal of the Korean Data and Information Science Society
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• v.24 no.1
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• pp.23-32
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• 2013

The object of study is to compare the response times between WiBro and wired internet in terms of users. We conducted experiments using six portal sites such as Naver, Daum, Google, Paran, Nate, and Yahoo. Because we could not receive all signal levels of WiBro at the same palace, we compared WiBro levels 1~3 and wired internet. We verified wired internet is significantly the fastest among wired internet and than WiBro levels 1~3. We could not find which level is the fastest among WiBro levels 1~3. On average, wired internet is faster than WiBro level 1, 2 and 3 about 5.05, 4.20, and 4.14 times, respectively. In addition to comparing WiBro levels 4~5 and wired internet, more researches on accelerating the response times are needed.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.319-325
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• 2019

The importance of social responsibility is growing, and as a result of social awareness, many universities and institutions are carrying out community service activities. Although the volunteer portal site has excellent performance and good accessibility, the overall service performance of a specific organization cannot be managed because of personal information. Almost community service managers of a organization manually manage their community service activities without the support of a community service management program. In this study, have been feature analysis of existing portal site for volunteer coordination, then a prototype was designed and developed as a model of social contribution management system so that universities and organizations can systematically support and manage the social service activities of members based on the questionnaire about social contribution management system.

• Journal of Industrial Convergence
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• v.20 no.4
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• pp.31-37
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• 2022

Research on what factors affect the success of the movie market is very important for reducing risks in related industries and developing the movie industry. In this study, in order to find out the degree of correlation of independent variables that affect movie performance, a survey was conducted on film experts using the AHP method and the importance of each measurement factor was evaluated. In addition, we hypothesized that factors derived from big data related to search portals and SNS will affect the success of movies due to the increase in the spread and use of smart phones. And a prediction model that reflects both the expert survey information and big data mentioned above was proposed. In order to check the accuracy of the prediction of the proposed model, it was confirmed that it was improved (10.5%) compared to the existing model as a result of verification with real data.Therefore, it is judged that the proposed model will be helpful in decision-making of film production companies and distributors.