• Asia pacific journal of information systems
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• v.12 no.3
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• pp.89-113
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• 2002

As Mobile Internet users grow rapidly, Mobile Internet Companies will be in a fierce race to catch a new customer. In this situation, companies want to identify of what factors make peoples use Mobile Internet in order to develop the effective Mobile Internet services and to supply the higher service quality. However, prior researches on Mobile Internet focused on technical area such as higher data delivery, efficient compression of images, so they do not have given companies beneficial materials for making fascinating Mobile Internet service. To offer the service development materials, this research investigated important factors to use Mobile Internet from the viewpoint of customer. Moreover, the study was progressed how much these factors influenced Mobile Internet actual usage. After being surveyed service adopting model and significant factors in Marketing and in MIS(Management Information System), this study was suggested Mobile Internet Adopting Model reflected in Mobile Internet characteristics. To collect the effective data, Internet survey had been done for two weeks. The respondents were identified if they were real Mobile Internet users and how much they had used Mobile Internet for a month. The results were that important factors of Mobile Internet usage were Usefulness, Usability, System Quality and Instant Connectivity. Perceived Value of Mobile Internet influenced Mobile Internet Behavioral Intention significantly and Behavioral Intention had a significant effect on Mobile Intent usage by results. This paper concludes with discussion of these results and their implications for researcher and Mobile Internet company managers.

• Asia pacific journal of information systems
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• v.25 no.2
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• pp.306-328
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• 2015

A recent trend in innovation paradigm is the shift from closed innovation to open innovation principles. This trend is characterized by the use of purposive inflows and outflows of knowledge not only to accelerate internal innovation, but also to expand the markets for external use of innovation. However, the Not-Invented-Here (NIH), and Not-Sold-Here (NSH) or Only-Use-Here (OUH) syndromes are the most common challenges encountered in open innovation processes. Therefore, this study has the following main aims: 1) propose a research model that explains the factors that influence NIH and NSH/OUH attitudes based on motivation theory with perceived organizational fairness and commitment, 2) investigate their impacts on NIH and NSH/OUH attitudes, and 3) provide useful theoretical and practical insights. The proposed research model was empirically tested using survey data collected from information technology (IT) professionals in Korea. One of the major findings indicates that IT professionals' perceived organizational fairness has a negative effect on NIH attitudes in open innovation process. Theoretical and practical contributions of this study are also discussed.

• Journal of Korea Society of Industrial Information Systems
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• v.17 no.3
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• pp.1-7
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• 2012

As personal information is utilized as an important user authentication means, a trustable certification means is being required. Recently, a research on the biometrics system using a part of the human body like a password is being attempted a lot. The face recognition technology using characteristics of the personal face among several biometrics technologies is easy in extracting features. In this paper, we implement a face recognition system for unattended reception interface. Our method is performed by two steps. Firstly the face is extracted using Haar-like feature method. Secondly the method combining PCA and LDA for face recognition was used. To assess the effectiveness of the proposed system, it was tested and experimental results show that the proposed method is applicable for unattended reception interface.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.31 no.1
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• pp.11-20
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• 2008

The purpose of this study is to identify the factors determining users' acceptance of individualized virtual community. While there has been considerable research on the Technology Acceptance Model (TAM) that has predicted whether individuals will accept and voluntarily use information systems, limitations of the TAM include the omission of an important characteristics of individual construct in the context of individualized community. Based on literature relating to the theory of reasoned action (TRA), the theory of planned behavior (TPB) and the TAM, this study extends the applicability of the TAM in a individualized community context, by adding characteristics of individual-based construct ("subjective norm", "self-efficacy", "self-presentation" and "sharing information to exchange various information") to the model. Analysis was conducted on using the structural equation modeling approach. The result supports the extended TAM in predicting users' intentions to using personalized community. Several implications for IT/IS acceptance research and individualized community service management practices are discussed.

• Journal of Institute of Control, Robotics and Systems
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• v.19 no.6
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• pp.547-554
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• 2013

This paper proposes a novel formation algorithm of identical robots based on object tracking method using omni-directional images obtained through fisheye lenses which are mounted on the robots. Conventional formation methods of multi-robots often use stereo vision system or vision system with reflector instead of general purpose camera which has small angle of view to enlarge view angle of camera. In addition, to make up the lack of image information on the environment, robots share the information on their positions through communication. The proposed system estimates the region of robots using SURF in fisheye images that have $360^{\circ}$ of image information without merging images. The whole system controls formation of robots based on moving directions and velocities of robots which can be obtained by applying Lucas-Kanade Optical Flow Estimation for the estimated region of robots. We confirmed the reliability of the proposed formation control strategy for multi-robots through both simulation and experiment.

• The Journal of Information Systems
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• v.23 no.4
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• pp.1-24
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• 2014

This study is intended to examine two issues related with social media messages. At first, the authors investigate that how they can categorize messages in the social media and how corporate twitters and brand twitters communicate with consumers. Secondly, after dividing messages in the social media into several groups, the authors investigate how each type of messages differ one another in terms of the consumer response. For examining these research issues, the authors gather twitter message data of global top 100 brands and categorize messages into 5 types (i.e., interactivity, diversion, information sharing, promotional, content) based on the motivation of communication and the format of the messages. Especially, the authors use content analysis methodology, which is normally used as the qualitative approach, in order to identify the type of messages. Furthermore, the authors present interactivity type of messages can communicate better with consumers and induce more favorable responses from consumers in the social media than any other type of messages. This research can provide implications in terms of theoretical, methodological, and managerial perspective.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.5
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• pp.225-235
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• 2006

Not a few nations have tried to copy the success of Silicon Valley since 1980's. Research of information communication industry cluster has emerged in Korea since 1990. In this background this paper thoroughly reviewed scholarly literature related to industry cluster with an attempt to extract dominant factors for cluster formation, and designed a survey instrument to measure the status-quo of cluster formation of software industry in Chungbuk Province Korea, as an example. Based on the results from statistical analysis a strategic scheme was proposed to propel software industry cluster formation in the region.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.5
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• pp.207-215
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• 2006

In this paper, we attempt to investigate the factors influencing usage and acceptance of ubiquitous services in campus, based on the Technology Acceptance Model(TAM). This study conceptualizes and develops three dimensions of u-Services, such as real time service, information security, customization service, and tests the relationship among u-Services, perceived usefulness and perceived ease of use, and intention to use. Data were collected from 162 respondents in K-University and research model was tested using multiple regression analysis. As a consequence, this study found that customization service is an important factor which is influenced to perceived usefulness and perceived ease of use.

• Journal of Korea Society of Industrial Information Systems
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• v.6 no.4
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• pp.68-74
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• 2001

This study presents the useful information for manufacturing industry-based development strategies at which Kangwondo province should aim, using the existing survey materials, interviews, and questionnaires. To analyze the technological competitive level of major eight enterprises in Kangwondo province, a synthetic evaluation has been conducted for areas such as new technology development, product development, production technology, and technological competitiveness. The study reveals that, among the technological competitiveness related factors, the managing status of business results, comparing analysis of business results, the applications of industrial property right, the registration of industrial property right, and the domestic and foreign certification show lower level than the other factors.

• Journal of Digital Convergence
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• v.10 no.4
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• pp.79-93
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• 2012

Despite growing interest and attention from researchers and practitioners in management studies, empirical research has been limited on how factors that influence an organization's business performance are affected by certain characteristics of enterprise information systems (IS), such as maturity and infrastructure. This study reports on an empirical analysis of survey data to identify relationships among the informatization level, the business environment, and IS maturity and infrastructure related to business performance-based on financial and non-financial performance measurements-from the perspective of 136 Taiwan firms. The survey questionnaire respondents were drawn from individuals in each of these firms who were typically working in divisions related to business performance functions. Structural equation modeling was used to test the hypotheses that came from the research model in this study.