• 디지털산업정보학회논문지
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• 제14권3호
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• pp.55-68
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• 2018

In this paper, we identify and evaluate the information security factors considered in outsourcing development of information systems for defense agency with analytic hierarchy process(AHP). To assess the information security elements, we prepared three groups including the experts of a defense agency, subcontractor managers and subcontractor practitioners who are involved in developing information systems. And the relative importance of security factors were analyzed using questionnaires and responses. As a result of analysis of 27 security factors, factors corresponding to human and physical security as a whole were evaluated as having higher importance. Although there are some differences in the ranking of some importance according to human roles, they can be positive for the implementation of complementary information security. And administrative security and technical security can be relatively insignificant considering that they can be considered as infrastructure of the overall information environment. The result of this paper will be helpful to recognize the difference of perception of information security factors among the persons in the organization where collaboration is activated and to prepare countermeasures against them.

• 정보보호학회논문지
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• 제24권6호
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• pp.1329-1335
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• 2014

국가기관 및 공공기관, 민관기관에서 정보보안의 중요성이 나날이 커지고 있다. 정보시스템이 중단되면 대규모의 혼란이 발생할 가능성이 다분하기에, 정보보안관리체계의 확립이 필요하며, 고도화된 새로운 평가방법이 필요하다. 본 연구에서는 정보보안의 3요소인 기밀성, 무결성, 가용성을 기반으로 새로운 평가 지표인 업무영향도 평가를 도입하였고, 실제 사례를 통해 업무영향도 중요도를 등급별로 분류하여 새로운 정보보안 관리실태 평가가 정보보안 거버넌스의 핵심적인 역할을 수행할 수 있다.

• Journal of the Korean Data and Information Science Society
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• 제20권2호
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• pp.329-338
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• 2009

중요도-실행도 분석은 성취도나 만족도에 관련된 의사결정이 필요한 다양한 분야에서 사용되는 간단하면서 함축적인 분석방법이다. 그 효과와 활용성이 많은 연구에 의하여 증거 되고 있으며, 통계학적인 면에서 연구할 여지가 많이 있다고도 사려 된다. 본 연구는 중요도-실행도 분석에 대한 몇 가지 부가적인 분석 방법을 소개하고 보다 정교한 정보들을 얻어낼 수 있음을 예를 통해 보였다. 중요도-실행도 분석은 산술평균을 기본 통계량으로 사용하고 있으나 중간값, 빈도, 군집 분석을 통한 자료 필터링을 통해 보다 핵심적인 정보에 기반 하는 중요도-실행도 분석을 실시하였다. 추가적으로 계층화 분석을 중요도-실행도 분석과결합하여 보다 적극적인의사결정이 가능함을 보였다.

• 한국컴퓨터정보학회논문지
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• 제22권9호
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• pp.17-24
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• 2017

Core citation recognition is to identify influential ones among the prior articles that a scholarly article cite. Previous approaches have employed citing-text occurrence information, textual similarities between citing and cited article, etc. This study proposes a term-based approach to core citation recognition, which exploits the importance of individual terms appearing in in-text citation to calculate influence-strength for each cited article. Term importance is computed using various frequency information such as term frequency(tf) in in-text citation, tf in the citing article, inverse sentence frequency in the citing article, inverse document frequency in a collection of articles. Experiments using a previous test set consisting of computational linguistics articles show that the term-based approach performs comparably with the previous approaches. The proposed technique could be easily extended by employing other term units such as n-grams and phrases, or by using new term-importance formulae.

• 수산경영론집
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• 제41권2호
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• pp.81-106
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• 2010

This study examines the information exploration characteristic and relative importance evaluation of island tourism web site. The survey items are developed based on the related studies and also implemented particular way so-called 'semi-online' that including both web based material and offline tutorial. The first objective of this study is verifying the characteristics of information exploration on island tourism of university students. The second is examining the peculiar properties of tourism information that exposed one's individual importance evaluation. The result of this study shows that most of the students have no difficulty in using the internet and exploring the island tourism information. And there is no significant difference in using and exploring the internet between male and female students. Based on the result of this study, most popular type of island tourism information is picture type. Personal blog or user created contents(UCC) that containing the other's experience of island tourism is mostly wanted contents. But there is a significant difference in importance of contents within the students. The community based information which including UCC, blog, and other community user's posting is evaluated the most important information for relatively less experienced students. On the other hand more experienced students have a preference on expertise information which created by tourism experts. The difference within the determinant factors that affecting island tourism also significant. With analysis of variance(ANOVA) on determinant factors, the tourism activity and social/culture resource are less important than others(eg. natural environment, accommodation and so on). The result of this study would be practically used for implementing the local government's effective tourism web site and enhancing the current island tourism operation. And also it gives a advantage to facilitate the island tourism for young generations.

• 한국식품조리과학회지
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• 제14권1호
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• pp.124-132
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• 1998

The purpose of this study was to evaluate the performance and importance of dietitians' role in order to provide basic information for an efficient foodservice management. This approach was achieved using a variety of quantitative and qualitative informations including general foodservice management, dietitian's role performance and importance. A survey of 453 office and factory foodservices was undertaken and detailed information was collected. Statistical analysis of data was performed using SAS package program for descriptive analysis, 1-test, $\chi$$^2$ test, and analysis of variance. The general characteristics of the dietitians were that 80.20% were aged between 20∼29 and 66.49 had work experience with less than 5 years. And 61.68% were graduated from college. The Importance-Performance Analysis (IPA) technique was used for obtaining information of dietitian's foodservice management practices. By the results of the IPA technique, foodservice attributes with fair to poor performance and high impotance was service management for customer satisfaction. The average scores of dietitian's role performance and importance were 3.33 and 4.03 out of 5, respectively. Dietitians with work experience more than 10 years and aged more than 30 years old had more work performance than those.

• 품질경영학회지
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• 제48권2호
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• pp.283-296
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• 2020

Purpose: This study examined the importance and satisfaction of consumer's perception of the information delivery format of products and services required and recommended by KS A ISO / IEC Guide 13: 2003 and KS A ISO / IEC Guide 37: 2003. Methods: In this study, the importance and satisfaction of clarity, principles of information transfer, how to use expressions and technical terms, and technical terms, warning signs, and durability were investigated. Results: The t-test analysis of the importance and satisfaction of the Writing Rules of the product user guide showed that all items had statistically significant differences. The importance of the writing rules of the product user guide for the use of the product was in the order of warning signs (4.423), how to use expressions and technical terms (4.215), principles of information transfer (4.163), clarity (3.914), and finally durability (3.851). Conclusion: Among the 'explanation,' 'instruction' and 'warning' functions of the Product User Guide, the consumer uses the manual to identify the inherent dangers and misuse of the product. Besides, since the life of the product is prolonged, the Product User Guide also needs to improve the quality of the cover or paper so that it can use for a long time.

• 통상정보연구
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• 제12권2호
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• pp.59-83
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• 2010

The purposes of the study is to evaluate the discrepancy between user's expectation and satisfaction degree in the service of uTradeHub. In this regard, this study infers general solutions in order to induce the intersection area using IPA technique. Then this paper will present directions to improve the service of uTradeHub. In terms of methodology, this article disclosed that IPA model approach is greatly useful to evaluate user's attribute. First, variables like the link of different works(f1), trust of system(f4), information connection(f7) are located on the first quadrant. This means that importance and satisfaction are all high variables for user. So, this is very important variables that need continuous administration in order to maintain present state. Second, variables such as the speed of information acquisition(f2), improvement of use(f3), stability of system(f5) are located on the second quadrant. This means that user's importance is high but user's satisfaction is low. Therefore, this area needs an active improvement strategy and quick maintenance for e-Trade application. Third, variables like the appropriateness of information usage fees(f8), easy subscription(f9), customer support service(f10) are located on the third quadrant. Because these variables are all low for user's importance and satisfaction, we have to arrange strong and radical remedy for e-Trade service. Finally, variables like information offer(f6) are located on the fourth quadrant. This means that user's satisfaction is high but user's importance is low. The research result suggests that e-Trade service development would be re-organised as much as user feels the importance of process innovation.

• 패션비즈니스
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• 제20권3호
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• pp.89-103
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• 2016

This study examines female new seniors' clothing consumption behaviors, such as their information sources, clothing store selection criteria, and perceived importance of sales associates' attributes, based on their level of clothing involvement. A face-to-face survey was conducted through a market research firm. The subjects of this study were female adults in their 50s and 60s residing in the Seoul metro area (N=197). Significant differences were found in the clothing consuming behaviors of new seniors depending on their clothing involvement(CI). High-CI new seniors tended to place more importance on both personal and non-personal information sources than low-CI new seniors. High-CI new seniors place importance both "merchandise assortment and store atmosphere" and "sales associates and service" when they select stores for clothing than low-CI new seniors. In terms of sales associates' attributes, high-CI new seniors tend to place more importance on customer-orientation than medium- and low-CI groups. Medium- and high-CI new seniors tend to place more importance on appearance than low-CI groups. However, there were no significant statistical differences for professional expertise among the three different CI groups.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권9호
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• pp.3823-3840
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• 2020

Recently, auto-encoder has emerged as the most popular method in convolutional neural network (CNN) based image compression and has achieved impressive performance. In the traditional auto-encoder based image compression model, the encoder simply sends the features of last layer to the decoder, which cannot allocate bits over different spatial regions in an efficient way. Besides, these methods do not fully exploit the contextual information under different receptive fields for better reconstruction performance. In this paper, to solve these issues, a novel auto-encoder model is designed for image compression, which can effectively transmit the hierarchical features of the encoder to the decoder. Specifically, we first propose an adaptive bit-allocation strategy, which can adaptively select an importance channel. Then, we conduct the multiply operation on the generated importance mask and the features of the last layer in our proposed encoder to achieve efficient bit allocation. Moreover, we present an additional novel perceptual loss function for more accurate image details. Extensive experiments demonstrated that the proposed model can achieve significant superiority compared with JPEG and JPEG2000 both in both subjective and objective quality. Besides, our model shows better performance than the state-of-the-art convolutional neural network (CNN)-based image compression methods in terms of PSNR.