• Proceedings of the Korean Information Science Society Conference
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• 2007.10d
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• pp.240-243
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• 2007

Geographic routing has been considered as an efficient simple, and scalable routing protocol for wireless sensor networks since it exploits pure location information instead of global topology information to route data packets. Geographic routing requires the sources nodes to be aware of the location of the sinks. In this paper, we propose a scheme named Sink Location Service for geographic routing in wireless Sensor Networks, in which the source nodes can get and update the location of sinks with low overhead. In this scheme, a source and a sink send data announcement and query messages along two paths respectively by geographic routing. The node located on the crossing point of the two paths informs the source about the location of the sink. Then the source can send data packet to the sink by geographic routing. How to guarantee that these two paths have at least one crossing point in any irregular profile of sensor network is the challenge of this paper.

• Journal of Korea Entertainment Industry Association
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• v.15 no.4
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• pp.279-286
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• 2021

In this study, we looked at the appearance of Edutech, which is being put into the educational field after Corona 19, with the advent of the 4th industrial revolution. In the era of the 4th industrial revolution, the infrastructure, data, and service of Smart Stick that actively utilized ICT became the main pillars of smart education. In particular, smart education is being implemented through e-learning, smart learning, and edutech, and on this basis, it has become possible through the expansion and use of the Internet and computers, the dissemination of smart devices, and a software foundation using big data. Based on this, it was confirmed that Edutech is being implemented through the establishment of a quarantine safety net, a learning safety net, and a care safety net for individual learners and safe life based on artificial intelligence. Lastly, in order for edutech education using big data to become a discourse for everyone, it is necessary to consider artificial intelligence and ethics in the use and application of edutech.

• Journal of Information Technology Services
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• v.12 no.1
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• pp.271-287
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• 2013

The rapid growth and dissemination of touch-based mobile devices such as smart phones and tablet PCs, gives numerous benefits to people using a variety of multimedia contents. Due to its portability, it enables users to watch a soccer game, search video from YouTube, and sometimes tag on contents on the road. However, the limited screen size of mobile devices and touch-based character input methods based on this, are still major problems of searching and tagging multimedia contents. In this paper, we propose WalkieTagging, which provides a much more intuitive way than that of previous one. Just like any other previous video tagging services, WalkieTagging, as a voice-based annotation service, supports inserting detailed annotation data including start time, duration, tags, with little effort of users. To evaluate our methods, we developed the Android-based WalkieTagging application and performed user study via a two-week. Through our experiments by a total of 46 people, we observed that experiment participator think our system is more convenient and useful than that of touch-based one. Consequently, we found out that voice-based annotation methods can provide users with much convenience and satisfaction than that of touch-based methods in the mobile environments.

• Journal of Korea Multimedia Society
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• v.8 no.12
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• pp.1613-1622
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• 2005

Broadcasting is fundamental and effective data dissemination mechanism for route discovery, address resolution, and many other network services in mobile ad hoc networks. Although many approaches for broadcasting have been proposed to minimize the number of retransmissions, none of them guarantee the best-suited bounds of retransmissions. Appropriate use of probabilistic method can lower the chance of contention and collision among neighboring nodes, so that it reduces the number of rebroadcasts. In this paper, we propose a probabilistic approach that dynamically adjusts the rebroadcasting probability according to the distance between the sender and the receiver. While the rebroadcast probabilities of a mobile node close to sender will be set lower, the rebroadcast probabilities of a mobile node far away from sender wi1l be set to higher, The rebroadcast probability of a node wi1l be set according to the distance from sender. We evaluate the performance of proposed approach by comparing it with flooding as well as a fixed probabilistic broadcast approach. Simulation results showed that the performance of proposed scheme outperforms by about $70\%$ than flooding scheme and outperforms by about $20\%$ than fixed probabilistic scheme.

• Journal of the Korean Institute of Rural Architecture
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• v.13 no.4
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• pp.17-24
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• 2011

This research is according to the a future-oriented strategy, low-carbon green growth, and it is a basic research for dissemination of rural housing standard plan. Through the survey of plans use, we look at ways to rural housing standard plan use and then needed to establish measures for this. Looking at the type of used plans, we can find several points. One of them, 19 kinds of rural housing standard plans were used among the 61 total cases. Almost all change the plan, the reasons is different for the condition of the land, such as site conditions, family members, personal preferences, house color or material. A few cases have been constructed as rural housing standard plans, but rural housing standard plans are important data for the rural resident to determine plans, and it has an important role in the rural housing design process. Common features of the many rural houses is concrete structure, two stories, and construction period is two to three months. Land area is $300m^2$ to $600m^2$, building area is $71m^2-110m^2$. Heating system is an oil boiler.

• Proceedings of the Korea Contents Association Conference
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• 2003.05a
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• pp.291-297
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• 2003

With the development of information communication technology, the demands for various, profound and advanced information on science and technology and the necessity for establishing science and technology information infrastructure with the aim of future oriented industry are ever increasing. Advanced countries are providing material property DB as well as bibliographic DB though the Internet. Establishment and dissemination of bibliographic DB at domestic is properly settled but research on material property DB is much to be desired. Accordingly, development and research on material property DB to construct the information infrastructure in science and technology are highly necessary. In this study, we have developed superconducting materials property DB which is highly advanced industry field in future. We provide the thermal and mechanical, and superconducting property data for oxide superconductors, and the database is designed by bibliographic information, material information and material property information section.

• Culinary science and hospitality research
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• v.23 no.8
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• pp.173-183
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• 2017

The purpose of this study is to investigate the causal relationship between new brand awareness and new brand awareness according to type of restaurant menu purchase information. This study will provide basic research data on viral marketing strategy through online marketing of restaurant companies. The purpose of this study is to investigate the effect of information obtained through blog information and SNS advertisement on word effect (information acceptance and information transfer) and to investigate the effect of word of mouth effect on consumers' purchase intention. A total of 206 samples were used for this analysis and regression analysis was performed using SPSS 18.0. The results of the study are as follows. First, experience type, timely relevance and consensus among the characteristics of blog information affect information acceptance. Experience, and accuracy are affecting information delivery. Second, information discomfort among the characteristics of SNS advertising information influences the acceptance of information. Information, entertainment and trust are affecting information dissemination. Third, information acceptance and information diffusion affect purchase intention.

• Journal of Distribution Science
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• v.18 no.11
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• pp.47-59
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• 2020

Purpose: The purpose of this study is to investigate the distribution of ancient Korean books around the world, and to study the process and impact of Myongsimbogam's distribution to East Asia and Europe. Research design, data and methodology: This study conducted literature research as its research method. The scope of research covers Korea, China, Japan, Vietnam, Spain, Germany and Russia. Results: Ancient Korean books were distributed through the Kwanpan and Banggakbon, and leaked overseas in historical circumstances. Myongsimbogam was distributed to Korea, China, Japan, Vietnam, Spain, France, Germany, and Russia. Myongsimbogam was the first ancient book to be translated into Western languages. Conclusions: The distribution of Myongsimbogam promoted the exchange of spiritual civilizations in the East and West, and became the basis for maintaining an individual philosophy, as well as social order. Therefore, the distribution of Myongsimbogam needs to be further expanded. For this, it is necessary to translate Myongsimbogam into English and popularize it through e-books, audio books and various lectures. While previous studies on Myongsimbogam have mainly focused on personality and moral education, this study is significant in that it examines the distribution and dissemination process of Myongsimbogam, its influence and significance.

• Journal of Information Management
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• v.42 no.4
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• pp.1-21
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• 2011

The purpose of this study is to suggest a model for increasing international use of Korean scholarly journals. Recently DOI and open access are remarkable from the standpoint of increasing the opportunity of global exposition and citation of domestic scholarly journal papers. The data used in investigation and analysis were from KAMJE, KISTI, DOAJ and SCIMAGO. The model comprising DOI service and open access is obtained through analyzing DOI and open access utilization models and investigation on both.

• Journal of Information Science Theory and Practice
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• v.4 no.1
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• pp.6-20
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• 2016

Scholarly communication plays a significant role in the development and dissemination of research outputs in library and information science (LIS). This study presents findings from a survey which examines the key attributes that characterize the publishing by Pakistani LIS scholars, i.e. academics and professionals, in national journals. A pilot-tested, electronic questionnaire was used to collect the data from the target population. 104 respondents (or 69.3% of target) provided feedback on areas such as number of articles published, number of citations, and the nature of any collaboration with other authors. The findings of this survey revealed that, among the various designated regions of Pakistan, the Punjab region was the most highly represented. In articles published in national journals, there was a clear preference among all respondents to collaborate with at least one other author. The citation metrics for LIS articles in national journals were relatively low (30.22%), which aligns with Scimago’s Journal and Country Rankings. The uptake of social scholarly networks mirrors international trends. Respondents were asked to score factors which could impact negatively on their ability to undertake research and/or publish the results. The study recommends that concerned stakeholders work together, as appropriate, to address concerns. In addition, it recommends that further research be undertaken to define patterns of Pakistani co-authorship in the social sciences.