• International Journal of Contents
• /
• 제6권4호
• /
• pp.57-61
• /
• 2010

This paper designed and developed internet based competency developing system for small IT (Information & Technology) companies. The purpose of this system was to provide career development opportunities to small IT business workers for their longstanding employment and self-improvement job skills. This study analyzed job competencies based on job descriptions from two IT companies. The survey was conducted to analyze employees' self-assessed current job competency level and effective ways of improving their current level of competencies. From the results of survey, most of subjects indicated their job competencies were in between mid-level to low level, and they required the need of training programs to improve their job knowledge and experience. Based on the interview from field experts about job competency development, this study designed and developed the internet based competency development system to provide effective and efficient way of improving job competencies and needed training programs for small IT business employees.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제12권10호
• /
• pp.5079-5099
• /
• 2018

Regarding to the huge number of connections and the large flow of data on the Internet, Intrusion Detection System (IDS) has a difficulty to detect attacks. Moreover, irrelevant and redundant features influence on the quality of IDS precisely on the detection rate and processing cost. Feature Selection (FS) is the important technique, which gives the issue for enhancing the performance of detection. There are different works have been proposed, but a map for understanding and constructing a state of the FS in IDS is still need more investigation. In this paper, we introduce a survey of feature selection algorithms for intrusion detection system. We describe the well-known approaches that have been proposed in FS for IDS. Furthermore, we provide a classification with a comparative study between different contribution according to their techniques and results. We identify a new taxonomy for future trends and existing challenges.

• 한국조사연구학회지:조사연구
• /
• 제1권1호
• /
• pp.125-134
• /
• 2000

인터넷 리서치의 과학성을 담보하기 위해서는 과학적 원칙과 절차를 지켜야 한다. 그 핵심은 표본추출에 있으며, 특히 자기선택오류를 범하지 않기 위한 방안이 모색되어야 한다. 먼저 인터넷센서스를 통해 네티즌의 분포와 변화상황를 주기적으로 체크하고 그에 준한 표본추출을 실시하여 패널을 구축한다. 구축된 패널에 PcMeter 를 장착케 하여 전송된 로그를 분석하여 제시하는 이를 인터넷 인덱스라한다.

• 응용통계연구
• /
• 제18권3호
• /
• pp.713-727
• /
• 2005

인터넷 조사는 전통적인 방법에 비해 자료수집이 신속하고, 조사비용이 저렴하며, 양질의 자료를 얻을 수 있으며 멀티미디어를 활용한 고도화된 설문을 설계할 수 있다. 그러나 조사대상자의 신원 파악이 어려우며 구체적인 고객만족도에 대한 분석이 어려운 상황이다. 따라서 인터넷을 이용한 설문조사뿐만 아니라 고객만족도 조사까지의 확장이 가능한 시스템을 개발하였다. 이 시스템은 조사계획 과정에서 미리 조사 대상자에 대한 기본 정보를 취합하여 E-mail을 통해 조사 대상자의 특성을 파악할 수 있다. 또한 시스템을 통한 계획의 입력과 진행의 현황을 확인할 수 있다.

• 한국지진공학회:학술대회논문집
• /
• 한국지진공학회 2003년도 춘계 학술발표회논문집
• /
• pp.23-29
• /
• 2003

We have developed a Web-based intensity map generation system. We describe here briefly our system that is automatically generating seismic intensity map using the informations afforded by Internet users who actually experience recent earthquake. Whenever internet survey questionnaires, reported from the citizens using the form available through our Web site, are received, the associated ZIP code region is color-coded according to the Modified Mercalli Intensity Scale. As the number of questionnaires is increased, the intensity value of each region divided by ZIP code is averaged and updated automatically. The coverage of acceleration stations is insufficient to map the accurate extent of ground shaking in Korea. So our system will serve as an alternative for much more rapid generation of intensity map than conventional method, such as mailing intensity survey or elaborate manual processing.

• Journal of Information Technology Applications and Management
• /
• 제21권1호
• /
• pp.17-34
• /
• 2014

As the numbers of Internet users have grown dramatically in recent years due to increased use of mobile devices, businesses using internet are also expanding rapidly. Internet marketing has the advantage of expanding business without any constraint of time and space using the global network which connects tens of thousands of world's computers and mobile devices. In a way of utilizing internet marketing, the present study examines the applicability of Customer Relationship Management (CRM) to the domestic professional baseball industry in Korea. The study focuses on the issue of whether the intangible value of customer satisfaction can create higher profits. We combine both inductive and conductive methods for this study. First, we carry out a random survey of baseball spectators and find that customers are willing to pay more when their satisfaction level is improved. Next, we recognize satisfaction factors that are considered as important by customers through literature survey. Then we use Decision Tree to find which satisfaction factors are most important to each clustered customer group. Finally we estimate how much they would pay more when the most important satisfaction factor improves by each customer group. Therefore, this study demonstrates that CRM implementation to one-to-one internet marketing can improve the profitability of baseball industry. The major contribution of the present study is to show that the introduction of CRM can be used as a profit-generating strategy in various industries for future internet marketing.

• 대한지역사회영양학회지
• /
• 제4권4호
• /
• pp.546-553
• /
• 1999

This study was undertaken to develop and evaluate a nutrition education program with internet for students. A survey was conducted to find out needs for nutrition education program with 430 college or high school student in October, 1997. Eighty four point eight percent of female and 36.0% of male students had a plan to reduce their weight in a near future. Forty four point four percent of subjects obtained information about weight control from mass media, 28.6% of subjects obtained from their neighbor's recommendation. The information wanted to know were high-calorie foods, answered by 42.1% of females, and calorie expenditure of exercise, answered by 31.9% of males. The obese group showed higher preferrence to sweet foods, salty foods, hot foods, convenience foods, processed foods, animal foods, fried and oily foods, and eating-out than normal group(p<0.05). The obese group also showed a tendency of bad food habits, low intake of seaweeds, high intakes of animal fat, cholesterol-rich foods and salty foods. Amount of food intakes was inappropriate in obese group. An internet program for nutrition education was developed using the results of the survey and juvenile nutrition programs. The program consisted of 6 steps ; step 1 was to check one's physical status, step 2 was explanation about good food habits, step 3 was about food management, step 4 was methods of exercise for health, step 5 included how to maintain ideal weight, and step 6 was related-internet site. Pre-education test and post-education test was conducted to evaluate the nutrition education through internet. The score of nutrition knowledge increased from $74.2{\pm}7.4$ to $77.2{\pm}9.6.$ The score of food attitude did not change. The subjects wanted more information about nutrition from internet. Therefore, internet program of nutrition education with specific and interesting topics should be developed more.

• Journal of the Korean Data and Information Science Society
• /
• 제24권1호
• /
• pp.41-51
• /
• 2013

정보화시대에 인터넷 중독의 심각성은 정보화 사회의 큰 이슈로 부각되고 있다. 인터넷사용이 급증함에 따라 정보화의 역기능도 증가하고 있어 인터넷 중독은 사회적문제로 대두되고 있다. 초고속 무선인터넷 서비스 보급 및 넷북, 스마트 폰 등의 인터넷 접속기기가 더욱 다양화됨에 따라 인터넷 중독 자가진단 검사 척도인 K-척도의 진단기준도 시대변화에 따라 변화가 요구되었으며 2012년 3월에 K-척도의 진단기준이 변경되었다. 본 논문에서는 2012년 변경된 K-척도의 기준으로 경북지역 대학생들의 인터넷 중독 실태와 K-척도 특징들을 살펴보고자 한다. K-척도에서 중독 진단을 위한 조사방식은 응답자가 직접 자신의 중독증상을 주관적 판단에 의해 응답하는 설문방식이므로 응답자의 고의적인 사실 숨김으로 인해 응답오차가 발생할 수 있다. 본 논문에서는 응답오차를 줄이기 위해 변경된 K-척도에 응답자에게 설문 응답에 대한 신뢰할 수 있는 신뢰도 값을 추가적으로 입력하여 분석의 신뢰도를 높이고자 한다.

• 대한가정학회지
• /
• 제45권5호
• /
• pp.95-119
• /
• 2007

The purpose of this study was to investigate the shopping values(utilitarian and hedonic values) sought and the risks(economic, functional, socio-psychological, and privacy) perceived by consumers who participate in Internet auctions by determining the factors that affect their shopping values and risk perceptions. Empirical data were collected by an Internet survey of netizens who were interested in and had experience in Internet auctions. Questionnaires were distributed to the subjects through an Internet survey site and at an Internet auction cafe. A total of 300 questionnaires were analyzed. The results showed that consumers showed a slightly greater pursuit of a utilitarian value than a hedonic outcome in their Internet auction practices; however the outcomes pursued by consumers in their teens and twenties tended to be more hedonic than utilitarian. Consumers with a higher level of innovation, self-confidence in purchase, and need for information searching showed a greater pursuit of utilitarian and hedonic outcomes. The group of consumers with a higher expectation for legal protection pursued a more utilitarian outcome, whereas the group of consumers with higher influence from the reference group pursued a more hedonic outcome. The consumers showed that they perceived functional risk as boing most serious, followed by privacy risk, economic risk, and socio-psychological risk. Subjects with higher degrees of innovation, self-confidence in purchase and self-control perceived economic risk as critical. Functional risk was perceived to be highest in the group of consumers with self-control and a need for information searching, whereas socio-psychological risk was perceived to be highest in the group of consumers showing more self-control. Privacy risk was perceived to be highest in the group of consumers with a higher degree of innovation and lowest in both groups of higher and lower affection. Both economic and privacy risks were perceived to be lower in the group of lower pursuit of a hedonic outcome.

• 응용통계연구
• /
• 제23권3호
• /
• pp.545-558
• /
• 2010

OECD 국가 중 자살률 1위라는 불명예와 함께 우리나라의 자살 관련 연구는 크게 증가하였다. 그 중 청소년과 노인을 대상으로 하는 자살 원인과 특성 그리고 예방법 등에 대한 연구는 많은 연구자들에 의해 매우 활발하게 이루어지고 있다. 이에 반해 성인 특히 청년층(2 30대)의 자살 관련 연구는 청년층의 자살 증가 추세와 그 파급효과를 고려했을 때 매우 미약한 수준이라고 할 수 있다. 이에 본 연구에서는 자원자 표본을 대상으로 이루어진 2009년 인터넷 사회조사의 결과를 바탕으로 청년층의 자살충동경험과 관련된 요인을 살펴보고, 이들 요인이 자살충동경험에 미치는 영향을 살펴보았다.