• Convergence Security Journal
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• v.19 no.5
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• pp.75-84
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• 2019

Recently, the value of video as an important data of medical information technology is increasing due to the feature of rich clinical information. On the other hand, video is also required to be de-identified as a medical image, but the existing methods are mainly specialized in the stereotyped data and still images, which makes it difficult to apply the existing methods to the video data. In this paper, we propose an automated system to index candidate elements of personal identification information on a frame basis to solve this problem. The proposed system performs indexing process using text and person detection after preprocessing by scene segmentation and color knowledge based method. The generated index information is provided as metadata according to the purpose of use. In order to verify the effectiveness of the proposed system, the indexing speed was measured using prototype implementation and real surgical video. As a result, the work speed was more than twice as fast as the playing time of the input video, and it was confirmed that the decision making was possible through the case of the production of surgical education contents.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.4
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• pp.387-399
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• 2014

This study proposes strategies for economic development through mobile in Africa where mobile emerges as an infra to solve socioeconomic problems. It analyzes economy and ICT industry in Africa and studies several cases that are utilized in agriculture, finance, education, and healthcare. It also examines economic development theory and the impact of broadband on economic growth and development. It is necessary to leapfrog to mobile to achieve an information society and a compact industrialization based on ICT because fixed-line is very poor and expensive in Africa. Building a mobile broadband infra, supporting a dissemination of low-end smartphones and a government's support for mobile contents are necessary to achieve a leapfrogging development through mobile in Africa. The findings of this study provide additional insights for Korean ICT companies to consider a business in Africa.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.47 no.5
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• pp.89-99
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• 2010

A unified method for separating musical sources, singing voice for example, from stereophonic mixtures is provided. We usually have two observed signals in stereophonic music contents, where more than two instruments are played together. If we regard each instrument as source, this problem becomes an underdetermined source separation problem and cannot be solved by conventional methods, which infers the spatial environment of the downmixing process happens. Instead, source-specific information has been exploited to recover a particular instrumental source. This paper provides a unifying structure consists of heterogenious ad-hoc separate algorithms, which are designed for separating vocal sources using stereophonic channel information and dominant pitch information of the sources, respectively. Experiments on real world music contents show that the proposed unification can neutralize the drawbacks of the two ad-hoc separation algorithms and finally enhance the separation results.

• Journal of the Institute of Electronics and Information Engineers
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• v.51 no.3
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• pp.147-155
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• 2014

While variety of content on the internet has increased with the development of IT and person's needs about suitable information are increasing rapidly, studies for personalized service have been actively performed. In the study, we proposed the Hypertension and Diabetes risk analysis system according to personal food intake preference using the analysis method of buying preferences in product recommendation system. For the analysis of food intake preference, the Pearson correlation coefficient is used to calculate similarity weights between each reference analysis data and sample data and then reference data should be grouping into the similarity weights and calculating risk of hypertension and diabetes each group. To evaluate the significance of this system, 1,021 subjects are applied the system. Hypertension and diabetes groups' risk is significant higher than normal group statistically so, it is confirmed that food intake preference and the diseases were relevant. In this paper, we verify the validity of hypertension and diabetes risk analysis system using a personal food intake preference.

• Journal of Korea Game Society
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• v.11 no.3
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• pp.43-53
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• 2011

The purpose of this study was to enhance the factors of the purchase intention of a mobile game for applying existing. For this study, an exploratory analysis was conducted on 40 ordinary peoples to survey through open-ended questionnaires. After that, the factors was examined by 30 experts. finally, closed-ended survey was conducted to confirm the validity and Reliability Verification. As a result, the factors have been identified with 9. From among these, 2 factors were a Newly derived -The factors of a innovation service and device- Through this study, This research will be useful to provide The basis for extended studies of Marketing, Game-development, Market analysis, etc

• Journal of Digital Convergence
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• v.15 no.8
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• pp.341-349
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• 2017

CCN proposes that intermediate network nodes on a network path for a transmitted data-packet cache the data-packet. If the nodes receive request packets for the cached data, the nodes can directly respond to the request-packets using the cached data. Since a request-packet can be responded by one of the intermediate nodes on a path of the request-packet, both faster response time and decreased data transmission amount are expected comparing to the existing host centric networking. However, CCN is vulnerable against forgery attacks because data-packet receivers cannot identify a data provider. Hence, a data authentication scheme is essentially needed to make CCN more secure. But such a data authentication process is one of the main causes of CCN-based service delays. This paper first analyzes the problems of a CCN data authentication scheme, then proposes an improved authentication operation scheme for efficiently authenticating data, and finally evaluates its performance.

• Journal of Digital Convergence
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• v.18 no.5
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• pp.473-484
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• 2020

The purpose of the research is to propose ways to activate package tours through active promotion by verifying the motives and constraints pursued by customers of package tours, highlighting the advantages of content development and package tours that are revived in their needs. This study verified empirical analysis using SPSS 25.0 for 481 adults aged 19 or older who experienced package tours. The results of the research analysis are as follows. First, the daily escape, external activities, and service appeal of the tourist motivation were all verified with a positive impact on attitude. Second, it was found that the inherent constraints of tourism constraints had a negative effect on the relationship with attitudes, but the structural constraints were not significantly affected. Third, attitudes have shown to have a positive effect on satisfaction. Based on these results, I have described what factors tourists feel important when participating in package tour products, and hope that The factors will be useful in exploring the development of customized products required by tourists. It will need to be expanded to realistic comparative studies needed to revitalize package tours in the future.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.23 no.4
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• pp.457-477
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• 2012

As the cases of merging and cooperation of archives and libraries increase abroad, research and discussions about integration of complex information services among information centers, such as archives, libraries and museums started to emerge. In a similar vein, the need for integrated cultural information centers are suggested in Korea as the museums encounter the need for expansion of contents, and libraries try to diversify their functions, yet regional public archives has not been established. In this context, the concept of 'Larchiveum(libraries + archives + museums)' was proposed as an alternative that integrates and provides various information functions and resources, and research related to this started to emerge. At present, however, the Larchiveum has not been realized, the specific pathway to realize this kind of institution need to be discussed. This study analyzes the functional characteristics and elements of archives, libraries and museums, and based on these, the functional requirements of the larchiveum are drawn, and are reflected on the Larchiveum's functional planning for space planning in this study.

• Journal of Korea Game Society
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• v.18 no.4
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• pp.43-52
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• 2018

This study was developed as a mobile serious game app (Roly Poly 160 App) based on a prototype model and then used in a public health center for diabetes patients. The mobile serious game application upgraded the mobile version of Roly Poly 160, which is a content for diabetes self-management of the existing PC version, by requesting to charge service of G city. The study period was from February 19, 2018 to May 11, 2018, and users were allowed to access the Roly Poly 160 app at least once a day for a total of 8 to 12 weeks after the preliminary investigation. As a result, HbA1C was significantly decreased(p=0.04), and diabetic knowledge was significantly higher than that before the follow-up(p=0.01). After applying Roly Poly 160 App, Satisfaction score was 3.74 out of 5 points

• Journal of Korean Library and Information Science Society
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• v.51 no.1
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• pp.43-70
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• 2020

In the context of accelerating the establishment of specialized libraries, this study aims to reestablish the entire system of specialized libraries scattered by Gimpo City as the Gimpo City Library has been in operation for 20 years. It aims to establish a specialized vision and strategy. In this study, the operational problems of the Gimpo library were discussed from three perspectives. First, there is a problem in selecting a special theme. Next is the problem of using specialized materials. Lastly, it is a matter of not operating the actual specialized program. Based on this analysis, three directions for the development of specialized topics were proposed. First, the selection of specialized topics based on local content and user needs. Second, it is necessary to prepare a plan to activate specialized services. Third, local specialty networks should be strengthened.