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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Internet Computing and Services
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Korean Society for Internet Information
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Volume & Issues
Volume 16, Issue 6 - Dec 2015
Volume 16, Issue 5 - Oct 2015
Volume 16, Issue 4 - Aug 2015
Volume 16, Issue 3 - Jun 2015
Volume 16, Issue 2 - Apr 2015
Volume 16, Issue 1 - Feb 2015
Selecting the target year
Estimating Willingness to Switch to MVNO for Activation of Mobile Data Services
Lee, Sang Woo ; Ko, Chang Youl ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 1~11
DOI : 10.7472/jksii.2015.16.4.01
This study uses the contingent valuation method to estimate the switching cost for adopting the MVNO service. The findings are as follows.: First, Willingness To Switch(WTS) increases as users' using pattern and perceived degree of MVNO service, but satisfaction with current service provider does not play a significant role in predicting Switching Cost. This means that as amount of money users can save exceeds a certain level, users decide to willingly change their service provider to MVNO regardless of their level of satisfaction with current service provider. Second, there are differences in WTS among service subscribers in SKT, KT and LGU+. It means that there will be a difference in the tendency to switch to MVNO among subscribers of service providers. This study suggest the following mangerial perspective to effectively promote the MVNO and boost the MVNO market for activation of mobile data services.: First, MVNOs are better off applying differentiated pricing scheme at attractive rates than using a differentiation of service product and quality. Second, regulators should consider how to implement an MVNO regulatory policy when there is an asymmetric customer loyalty among MNOs. This research will be used to set the MVNO's pricing strategy and to build up a successful regulatory policies.
Findings from the Survey Responses by Cambodian Doctors and Patients for Telemedicine
Yoo, Sun-gil ; Oh, Dongik ; Min, Sedong ; Shin, Wonhan ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 13~23
DOI : 10.7472/jksii.2015.16.4.13
In order to reduce public medical expenses as well as to provide effective medical services, telemedicine between doctors and patients is considered as an alternative to the conventional hospital visit. But the medical community has been protesting the introduction of telemedicine for the efficacy and safety reasons. Korean government has been conducting a number of pilot projects to demonstrate the efficacy and safety of telemedicine for more than 10 years. However, still the system is not yet legalized. In this study, we have conducted a telemedicine pilot project in Cambodia for one year, where telemedicine can be more freely exercised. After the project, we conducted a survey based on the 'Rogers diffusion' theory. Survey results show that both physicians and patients are positive about the relative advantage of the telemedicine. However, the complexity and high cost of the equipment used in telemedicine has been found to be a possible obstacle. In addition, we found that there is no problem for providing telemedicine services under challenged environment, such as in Cambodia.
Design and Implementation of Interactive Authoring Tool for Mobile Augmented Reality Content
Jeon, Ji-Young ; Chun, JiYoon ; Hong, Min ; Yum, Hyo-Sub ; Choi, Young-Hwan ; Choi, Yoo-Joo ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 25~37
DOI : 10.7472/jksii.2015.16.4.25
This study has developed a mobile AR contents Builder (MARB) featuring the augmentation of virtual objects, e. g. 2D images, 3D models and videos on user-preferred markers in mobile environment and with connected interaction events. The developed MARB is capable of augmenting multiple virtual objects on markers preferred by users, and selectively supporting many marker-specific interaction events. The MARB is also developed as a mobile App for convenience of use in the mobile environment. This makes users to implement AR contents by a GUI-based authoring procedure on the mobile device. The developed MARB allows App developers and general users to author mobile contents easily and can be applied to various field by those who wish to use diverse mobile AR contents. Moreover, the MARB will provide solutions for the expansion of mobile AR market, by overcoming the difficulties of mobile AR content development.
A Proposal of Methods for Extracting Temporal Information of History-related Web Document based on Historical Objects Using Machine Learning Techniques
Lee, Jun ; KWON, YongJin ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 39~50
DOI : 10.7472/jksii.2015.16.4.39
In information retrieval process through search engine, some users want to retrieve several documents that are corresponding with specific time period situation. For example, if user wants to search a document that contains the situation before 'Japanese invasions of Korea era', he may use the keyword 'Japanese invasions of Korea' by using searching query. Then, search engine gives all of documents about 'Japanese invasions of Korea' disregarding time period in order. It makes user to do an additional work. In addition, a large percentage of cases which is related to historical documents have different time period between generation date of a document and record time of contents. If time period in document contents can be extracted, it may facilitate effective information for retrieval and various applications. Consequently, we pursue a research extracting time period of Joseon era's historical documents by using historic literature for Joseon era in order to deduct the time period corresponding with document content in this paper. We define historical objects based on historic literature that was collected from web and confirm a possibility of extracting time period of web document by machine learning techniques. In addition to the machine learning techniques, we propose and apply the similarity filtering based on the comparison between the historical objects. Finally, we'll evaluate the result of temporal indexing accuracy and improvement.
Choo, Hyun-Lock ; Jung, Jong-Hun ; Kim, Hwan-Kuk ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 51~59
DOI : 10.7472/jksii.2015.16.4.51
Design of a Web-based Java Applet for Conceptual Learning in Digital Logic Circuits and its Student Satisfaction Survey
Kim, Dong-Sik ; Choi, Kwan-Sun ; Lee, Sun-Heum ; Chung, Hye-Kyung ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 61~70
DOI : 10.7472/jksii.2015.16.4.61
This paper presents a web-based Java applet for understanding the concepts in digital logic circuits and student satisfaction survey was carried out in order to show its educational validity. Through our educational Java applet, the learners will be capable of learning the concepts and principles related to digital logic circuit experiments and how to operate virtual experimental equipments and virtual bread board. The proposed educational Java applet is composed of five important components: Principle Classroom to explain the concepts and principles for digital logic circuit operations, Simulation Classroom to provide a web-based simulator to the learners, Virtual Experiment Classroom to provide interactive Java applet about the syllabus of off-line laboratory class, Assessment Classroom, and Management System. With the aid of the Management System every classroom is organically tied together collaborating to achieve maximum learning efficiency. Finally, we have obtained several affirmative effects such as high learning standard, reducing the total experimental hours and the damage rate for experimental equipments.
A Content Analysis for Website Usefulness Evaluation: Utilizing Text Mining Technique
Kwon, Do Young ; Jeong, Seung Ryul ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 71~81
DOI : 10.7472/jksii.2015.16.4.71
With the increasing influence of online media, company websites have become important communication channels between companies and customers. Companies use their websites as a marketing tool for a variety of purposes, including enhancing their image and selling products or services. Many researchers have examined the criteria, methods, and tools for website evaluation, but most have focused on usability. Prior content analyses have focused not on text content but on website components, an approach likely to produce subjective evaluations. This study attempts to objectively evaluate company websites by utilizing text mining. We analyze the usefulness of company websites by presenting visualized outputs from a business perspective, allowing practitioners to easily understand the results of the website evaluation and use them in decision making. To demonstrate our method empirically, we selected a company with a number of affiliates in Korea and analyzed the text content of their websites to assess their usefulness using natural language processing and graphics packages in R. Practitioners can easily employ our objective evaluation method, and researchers can use it to gain a new perspective on website evaluation.
Effect of Trust Toward Digital Risk Management Organization on Risk Perception and Cognition of Risk Management: Focused on Expert Survey
Kim, Won-je ; Kim, Chan-won ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 83~91
DOI : 10.7472/jksii.2015.16.4.83
The purpose of this study was to examine the effect of trust toward digital risk management organization on risk perception and cognition of risk management focused on expert survey. The results were as follows. First, Trust toward digital risk management organization influenced negatively on risk perception. Second, Trust toward digital risk management organization influenced positively on cognition of risk management organization. Third, risk perception on digital risk influenced not significantly on cognition of risk management organization. Findings of this study requires an effort to increase trust of digital risk management organization and to develop trust-based decision-making on digital risk.
Awareness of the Others on Facebook: Empirical Analysis of Social Presence
Hwang, Ha Sung ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 93~99
DOI : 10.7472/jksii.2015.16.4.93
The purpose of this study was to explore the reasons why college students use Facebook and the ways in which they feel of social presence while using Facebook. In fact, the study aimed to specify the links between motivations for using SNS and a sense of 'being together'. The findings of this study suggest that major motivations of SNS use were social interaction, entertainment, self-presentation, and information-seeking. Specifically, results from a survey of 280 respondents revealed that college students used Facebook to seek maintenance and connection with friends, to express themselves, to get information about school activities, and to be entertained. These findings are consistent with the existing literature regarding SNS as a primary channel to maintain the existing social relationships among college students. The study also found that all motivation factors, except information-seeking factor, were positively and significantly related to social presence. The strongest correlations were between social presence and Facebook use for social interaction and entertainment needs. It seemed that users who seek social interaction and entertainment needs are more likely to feel a sense of being with others while users who seek to get information are less likely to feel a sense of social presence. These findings implied that to some extent, a sense of social presence occurs in the context of Facebook and that the experience of social presence depends on what college students seek from Facebook use. In addition, the results showed a positive relationship between Facebook use and social presence; the more college students use Facebook, the more they are likely to experience sense of social presence. Given that Facebook provides college students with a place where they can share thought and feelings among friends, it can be concluded that Facebook contributes to the sense of belonging among users. And such feeling may enhance a sense of presence with others while using Facebook. These findings suggest that uses and gratifications researchers should consider the concept of social presence as an important variable in explaining what audience members do with media.
An Exploratory Study on the Usage of Internet Technologies and Tools in Educational Working Environment of Developing Countries: A Case of Pokhara University in Nepal
Shrestha, Deepanjal ; Jeong, Seung Ryul ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 101~110
DOI : 10.7472/jksii.2015.16.4.101
century has seen a tremendous advancement in the field of Information and Communication Technology. The commercial utilization of Internet tools and technologies has brought change in the traditional working environment. The functioning in an electronic environment is far more complicated than working in traditional environment and this brings many challenges, threats and potential problems. In this paper we analyze the challenges, threats and potential problems in the working environment of Pokhara University due to application of Internet tools and technology. We have chosen four basic areas on the basis of use that include web resources, electronic mails, social sites and P2P technologies. The main focus is to analyze the impact on work place productivity, social interaction, use and abuse of technology and legal issues associated with them. We, finally summarize the findings and offer solutions and recommendations from the observed data based on direct survey conducted in Pokhara University, Nepal.
Internet Governance from the Perspective of Global Information Society
Kim, Daeho ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 111~120
DOI : 10.7472/jksii.2015.16.4.111
Internet has changed global information society in many ways. Among others, combination of internet's technological characteristics and internet ecosystem has altered global information governance. This paper argues that internet governance is rooted in the multistakeholder model in which diversified actors including government, private sector, and civil society are connected closely. Players have increased a lot in the global information governance. In particular, civil society have more involved in the decision making process. In the international politics arena, power shift from intergovernmental organizations to civil international organizations has increased. ICANN and IGF(Internet Governance Forum) have played critical roles in internet governance. Internet governance shows new phenomena of global information governance.
A study on the policy about regulation improvement for vitalization of technology based startup
Sim, Yong-ho ; Gil, Wun-gyu ; Kim, Seo-kyun ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 121~130
DOI : 10.7472/jksii.2015.16.4.121
Technology based start-up is actively encouraged for job creation and economic performance in Korea. The Korean government has implemented a variety of policy for regulatory improvement to vitalize technology based start-up. In order to maximize the effectiveness of the policy for regulatory improvement should be actively reflect the opinions of policy beneficiaries. In this study, The importance of "The progress plan for regulation improvement about vitalization of start-up(25 contents)" published by the government was analyzed using AHP method. The object of study is the beneficiary of the policy(CEO of ICT sector). Analysis showed that the 25 contents were classified into four(1 - expectation of effect, 2 - urgency of system enforcement, 3 - complement of deficiencies, 4 - after careful consideration). This study has a academic significance to quantitative analysis about importance of policy for regulatory improvement. Also, It can be utilized when policy making and practice about technology based start-up.
A Study on the Plans for Effective Use of Public Data: From the Perspectives of Benefit, Opportunity, Cost, and Risk
Song, In Kuk ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 131~139
DOI : 10.7472/jksii.2015.16.4.131
With the request for the advent of new engine toward economic growth, the issue regarding public-owned data disclosure has been increasing. The Korean governments are forced to open public-owned data and to utilize them in solving the various social problems and in promoting the welfare for the people. In contrast, due to the distrust of the effectiveness for the policy, many public owned organizations hesitate to open the public-owned data. However, in spite of communication gap between the government and public organizations, Ministry of Government Administration and National Information Society Agency recently planned to accelerate the information disclosure. The study aims to analyze the perception of the public organization for public data utilization and to provide proper recommendations. This research identified mutual weights that the organization recognize in opening and sharing the public data, based on benefit, opportunity, cost, and risk. ANP decision making tool and BOCR model were applied to the analyses. The results show that there are significant differences in perceiving risk and opportunity elements between the government and public organizations. Finally, the study proposed the ideal alternatives based on four elements. The study will hopefully provide the guideline to the public organizations, and assist the related authorities with the information disclosure policy in coming up with the relevant regulations.
Overview of Personal Information Protection Act in Korea
Kim, Ilhwan ; Sung, Jaeho ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 141~148
DOI : 10.7472/jksii.2015.16.4.141
The Personal Information Protection Act enacted in March 2011 stated that the application target of this law includes all personal information processors in the public and private sector, and established the protection standard by phase such as collection, use and provision of personal information. There was an introduction of the Privacy Impact Assessment system that enables personal information processors to perform impact assessment autonomously if there are great concerns over the fact that making and expanding personal information files will influence the protection of personal information, while also making impact assessment compulsory for public institutions in specific reasons with great concerns for violating the rights of the subjects of information. This Act still has the problem that it is generally difficult to understand. This paper deals with the Korean legal practices about the personal information protection with regard to ambiguity and promotional system.
A Study on the Organization and Authority of the Personal Information Protection Commission
Kim, Ilhwan ; Kim, Jaehyoun ;
Journal of Internet Computing and Services, volume 16, issue 4, 2015, Pages 149~156
DOI : 10.7472/jksii.2015.16.4.149
The Personal Information Protection Commission shall be established under the direct jurisdiction of the President and shall independently perform affairs under its authority. It shall be comprised of total 15 members (5 members designated by the President, 5 members elected at the National Assembly and 5 members designated by the Chief Justice of the Supreme Court), including one minister-level Chairperson and one vice-minister-level standing member. Main functions of the Personal Information Protection Commission include deliberation and resolution of major policies and improvement of ordinances and systems related to personal information protection, coordination of opinions among public institutions in regards to the management of personal information, recommendation of improvement such as suspension of infringement by a central administrative agency, a local government and a constitutional institution, and submission of annual reports on personal information protection to the National Assembly. The function and role of the Personal Information Protection Commission regulated by the current law are insufficient in terms of independence and authorities of protection agencies compared to the international standard or level of discussion. The Commission thus cannot play a sufficient role as an independent agency for efficient protection of personal information. Therefore, there is a need for law revision that revives the purpose of the establishment of the Personal Information Protection Commission.