• Journal of Digital Contents Society
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• v.14 no.2
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• pp.275-282
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• 2013

In medical image processing field, object recognition is usually carried out by computerized processing of various input information such as brightness, shape, and pattern. If the information mentioned does not make sense, however, many limitations could occur with object recognition during computer processing. Therefore, this paper suggests effective object recognition method based on the magnetic resonance (MR) theory to resolve the basic limitations in computer processing. We propose the efficient method of robust gray-white matter segmentation by texture analysis through the Susceptibility Weighted Imaging (SWI) for contrast enhancement. As a result, an average area difference of 5.2%, which was higher than the accuracy of conventional region segmentation algorithm, was obtained.

• Journal of Digital Contents Society
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• v.18 no.8
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• pp.1561-1566
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• 2017

Due to the advances in machine learning and artificial intelligence technologies, many new services have become available. Among such services, recommendation systems have already been successfully applied to commercial services and made profits as in online shopping malls. Most recommendation algorithms in commercial services are based on content analysis or explicit feedback rates as in movie recommendations. However, many online shopping malls have difficulties in content analysis or are lacking explicit feedbacks on their items, which results in no recommendation system for their items. Even for such service systems, user log data is easily available, and if recommendations are possible with such log data, the quality of their service can be improved. In this paper, we extract implicit feedback like click information for items from log data and provide a recommendation system based on the implicit feedback. The proposed system is applied to a real in-service online shopping mall.

• Journal of Digital Contents Society
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• v.18 no.5
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• pp.923-932
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• 2017

Based on the metadata of BIGkids, a news big data system, this study analyzed the trends of news coverage by the major fields and topics related to Deoksugung Doldam-gil in mass media. In addition, we tried to interpret the space discourse of Deoksugung Doldam-gil which has been formed in contemporary period through the analysis of data related to BIGKinds, the contents of related reports and context. As a result of the analysis, the coverage of Deoksugung Doldam-gil was mostly reported in the field of 'Culture', and the news related to 'Cooking_Travel', 'Exhibition_Performance' and 'Broadcasting Entertainment.' Deoksugung Doldam-gil was categorized as the pedestrian freindly street, the cultural and artistic street, and the historical street, and interpreted the spatial discourse with related news contents.

• Journal of Digital Contents Society
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• v.18 no.3
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• pp.551-558
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• 2017

The growth of blogs has two aspect of providing various information and marketing. This study collected the rankings of blog posts of large portal using OpenAPI and investigated the features of blogs ranked through the exploratory data analysis technique. As a result of the analysis, it was found that the influence of the blogger and the recent creation date of the post were highly influential factors in the top rank. Due to the weakness of these evaluation algorithms, there was a problem of showing the search results which is concentrated to the power blogger's post. In this study, we propose an algorithm that improves the reliability of content by adding the reliability DB information which is verified by the experts and reflects the fairness of the application of the ranking score through the trend index indicating various public interests. Improved algorithms have made it possible to provide more reliable information in the search results of the relevant field and have an effect of making it difficult to manipulate ranking by illegal applications that increase the number of visitors.

• Journal of Digital Contents Society
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• v.19 no.2
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• pp.301-307
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• 2018

Generally, search engine summarizes the main contents of the search results so that user can click the site providing the information of the contents to search first. In this study, we demonstrated whether the user clicks on the search results based on the summary content provided by the search engine or on the order of the search result placement through empirical studies through the presentation of search results. By using the API provided by the search engine company, a search site that presents the search results in a regular and inverse order is created, and the click action of each user's search result is displayed in the order of actual click order, click position, and the user's search type such as the route of movement. As a result of the analysis, most users account for more than 60% of users who click on the first and second exposed search results regardless of the search results. It is confirmed that the search priority of users is determined according to the order of search results regardless of the summary of search results.

• Journal of Digital Contents Society
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• v.19 no.2
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• pp.351-362
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• 2018

This study investigated how Schwartz' value system(1992) would interfere with SNS users' motivations and behavioral responses. The study result shows that values are characterized in terms of openness, mutual reciprocity, self enhancement, normative compliance, and security. Each of them exerted differential impact on SNS usage motives, social capital, ad response, and word-of-mouth, among others. The five values were used as an input for segmenting SNS users and clustering method produced four value segments; experience seeker, interdependent sympathizer, self enhancer, and norm-bound. Each value group not only influenced SNS perceptions and behavioral responses differently, but also showed a systematic relationship with SNS service types. The study findings demonstrate that Schwartz's value system provides a very useful theoretical basis for understanding the psychological mechanism underlying SNS usage.

• Journal of Digital Contents Society
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• v.19 no.2
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• pp.221-228
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• 2018

This study mainly focused on horror movies and horror games. Camera angles of horror movies and compositions of horror games are main factors that can cause fear in people's minds. Through analyzing four kinds of factors, including sensual, expectant, restrictive and executive fear elements, in horror games, and combining with the patterns of camera angles and film techniques that Alfred Hitchcock applied in his horror movies, this research investigated certain types of compositions and concluded ones that were more effective on growing fear in players' minds and enhancing their involvement. In conclusion, only the combination of factors in horror-game compositions, like diagonal composition, dual-diagonal composition and inverse triangle-line composition, with visual elements enables player's growing sense of fear and the increase in involvement. Therefore, future works should apply more of these fear-inducing compositions.

• The Journal of the Korea Contents Association
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• v.17 no.9
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• pp.159-172
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• 2017

This study examined the predisposing, enabling and need factors, based on Andersen's behavioral model, affecting intention to use community organizing services at a community welfare center. 725 people aged 20 and older who lived in Gwang-jin-gu participated in this study and multiple linear regression analyses were utilized to analyze the deputation. The results demonstrate that intention to use is primarily affected by predisposing factors, age and duration of education. Female and more educated people were significantly associated with the intention to use community organizing services. Enabling factors, reputation and image of the community welfare center significantly affect intention to use community organizing services. People are more likely to use community organizing services when there is higher reputation of the community welfare center and better image of the community welfare center. Finally, intention to use is primarily affected by welfare consciousness, a need factor. People who have liberal welfare consciousness are more likely to use community organizing services. These findings provide implications and suggestions for increasing intention to use community organizing services at a community welfare center.

• The Journal of the Korea Contents Association
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• v.17 no.5
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• pp.100-113
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• 2017

The purpose of this study was to examine the impact of activity engagement on life satisfaction and ego integration in late adulthood and to investigate the mediating effect of life meaning between activity engagement and life satisfaction and ego integration. 700 elderly(359 male, 350 female) who retired and over 55 years old completed questionnaires. Structural equation model analysis using AMOS showed that the suggested model is appropriate. Results showed that activity engagement was positively associated with life satisfaction and ego integration. and results also showed that life meaning mediated the relationship between activity engagement and life satisfaction and ego integration. Lastly, We discussed the implications of the roles of activity engagement and life meaning on life satisfaction and ego integration for elderly and limitations of this study and suggestions for future research.

• The Journal of the Korea Contents Association
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• v.9 no.9
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• pp.163-170
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• 2009

This paper is an analysis of the newly invented RED ONE camera and its various advantages, and also a comparison of the results with already existing digital cameras. As film production systems have been converting to digital systems, Arri Camera, one of the existing film camera companies, has invented and developed the Arri D21.Sony, the leader of the high definition digital camera industry, is also securing its role as the leader of digital filmmaking by introducing the CineAlta F-900 series. With these advances in digital filmmaking, the advent of the RED ONE camera opens doors to new possibilities to digital filmmakers. The development of digital cameras with thoughtful consideration for its users has Influenced the filmmaking environment immensely and has become the reason why it is playing a major role in digital filmmaking.