• Journal of the Korea Institute of Military Science and Technology
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• v.25 no.1
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• pp.65-71
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• 2022

In this paper, we propose an opportunistic data relay scheme in narrowband multihop combat radio networks. Narrowband networks have physical restrictions on high-speed transmission. Furthermore, the topology changes dynamically due to the jamming of the enemy, signal interference between friendly forces, and movement of network entities. Therefore, the traditional relay scheme that collects topology information and calculates a relay path before transmission is unsuitable for such networks. Our proposed scheme does not collect topology information and transmits data opportunistically. The scheme can cause unnecessary data relaying that is not related to data delivery to the destination node. However, for small networks, the effect of increasing network throughput by not gathering topology information is much greater than the effect of reducing throughput by unnecessary data relays. We demonstrate the performance superiority of the proposed scheme through simulation in the worst case of network topology.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.1
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• pp.5-28
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• 2010

This study analyzed the characteristics of library service users' information seeking behavior based on the grounded theory methodology. After interviewing twelve undergraduate students, the researcher coded the data based on the grounded theory methodology. As a result of the entire coding processes, this study constructed the library service users' information seeking behavior model. According to the model, the following ten factors are important when explaining library service users' information seeking behavior: the information users' environment, other people, users' experiences, recognition of information sources, information provided, memory, a need-creating environment, information gathering, information use, and satisfaction and/or dissatisfaction.

• Journal of Korean Library and Information Science Society
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• v.39 no.1
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• pp.33-50
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• 2008

The purpose of this study is to provide for efficient health information service which doctors may use for their better medical practice and scientific research. 177 doctors were surveyed from December 3 to December 21th in 2007. This study mentioned activities of information need and use that were evaluated by information gathering methods used, information source, frequency of use, and degree of satisfaction toward library services. Doctors showed that they need information mainly to know the recent research results in their interesting subject field and to treat a patient. Doctors trended to obtain information through internet search because easy access and easy use, accuracy and up to dateness of information use. Doctors trended to seek information mainly through library, but they showed relatively low frequency of library use because they do not know how to use it.

• Journal of Information Management
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• v.26 no.2
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• pp.37-60
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• 1995

Company needs information management activities for establishing the R&D plans and for working out countermeasures against changes of environment which threaten the management. Nowadays the quantity of information to be gathered is increasing and uncertainties in decision making are also increasing, so the importance of the systematic activities for information are highly recogniyed In this paper, information management method that can be useful for some companies are suggested. Most of information management division in small & medium sized organizations have problems with respect to information analysis. In this study solutions for those problems ane also suggested.

• Korean Journal of Oriental Medicine
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• v.14 no.3
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• pp.127-135
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• 2008

The Korean Medicine Information has recently started due to lack of understanding and budgets. In this paper, the active region of Korean Medicine Information from outstanding cases in Korea and the trends of other nations was surveyed. As a results we found the problems that the available data is insufficient, the quality of data is not good and the unification of data is not easy from the analysis of information status and suggested the new directions. we suggest that Korea Medicine Information Center should be established to unify the information from Korea Medicine Organizations and to build information gathering network. we also suggest that well-organized information projects must be carried out in leadership of it from unified point of view. we mentioned the effects of Korea Medicine Information Center establishment.

• Journal of Korea Spatial Information System Society
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• v.6 no.2 s.12
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• pp.85-95
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• 2004

Nowadays, the interests in travel are increasing with the changes into the ubiquitous computing environments, hence, our location-based travel information service system would be potentially invaluable to graft the Internet business models. Most of existing travel information services are provided in a one-way push manner from the contents providers to users, and they have drawbacks of enforcing users to search their needed information with the general Web surfing. Therefore, this paper propose the travel information system for gathering user information and for providing services that satisfy user requirements by filtering based on these information.

• Journal of Korea Society of Digital Industry and Information Management
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• v.5 no.4
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• pp.39-49
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• 2009

Nowadays, according to rapid development of computing environments, information processing and analysis system are very interesting research area. As a viewpoint of data preparation-processing-analysis in knowledge technology, the goal of automated information system is to satisfy high reliability and confidence and to minimize of human-administrator intervention. In addition, we expect the system which can deal with problem and abnormal error effectively as a fault detection and fault tolerance. In this paper, we design a monitoring system as follows. A productive monitoring information from various systems has unstructured forms and characteristics and crawls informative data by conditions and gathering rules. For representing of monitering information which requested by administrator, running-status can be able to check dynamically and systematic like connection/closed status in real-time. Our proposed system can easily correct and processing for monitoring information from various type of server and support to make objective judgement and analysis of administrator under operative target of information system. We implement semi-realtime monitering system using AJAX technology for dynamic browsing of web information and information processing using XML and XPATH. We apply our system to SMS server for checking running status and the system shows that has high utility and reliability.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.34 no.3
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• pp.231-242
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• 2016

As of late, air quality information has been actively gathered and investigated in order to find possible environmental risk factors that may affect the onset of cardiovascular disease. Nevertheless, existing studies are limited in the detailed analysis because they take advantage of the air quality information of the macro statistics divided into administrative districts. This paper proposes the construction of distance-based air quality dataset using a domestic hospital’s geographical location information as a reliable data gathering step for a more detailed analysis of environmental risk factors. For the construction of the dataset, air quality information was obtained by utilizing the geographical location of a hospital—in which a patient with cardiovascular disease had been admitted—and then matching the hospital with a meteorological and air pollution station in its vicinity. An air quality acquisition system based on GMap.net was devised for the purpose of data gathering and visualization. The reliability of the experiment was confirmed by evaluating the matching rate and error of air quality values between the acquired dataset with existing area-based air quality datasets from matched distances. Therefore, this dataset, which considers geographical information, can be utilized in multidisciplinary research for the discovery of environmental risk factors that can affect not only cardiovascular diseases but also potentially other epidemic diseases.

• Journal of Korea Society of Industrial Information Systems
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• v.23 no.3
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• pp.97-116
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• 2018

Individuals depend considerably on gathering information from personal social networks rather than from commercial network channels or the mass media. Most academic journals that have examined this topic concentrate on online users' information-searching behaviours; however, this paper discusses online users' information-providing behaviour in the online community. The aim of this study is to investigate that online users' motivation to write reviews on Facebook and how the motivations affect users' information-providing behaviour. This study focusses on Facebook members' motivations that affect their review-writing behaviour. The fundamental theory for examining this topic is Vogt and Fesenmaier's (1998) 'information need'. This study modifies Vogt and Fesenmaier's (1998) theory for virtual communities through the development of each concept's measurement items, selecting the information need of four variables: functional, hedonic, innovation, and sign need. Among the four variables, sign need is the most important factor for Facebook users in the virtual environment. Through sign need, people indicate their status, personality form, and position, which significantly affects members' review-writing behaviour on Facebook.

• The Journal of the Korea Contents Association
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• v.6 no.8
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• pp.105-113
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• 2006

For reasonable planning and decisions, spatial Planners should gather and analyse land use information which includes lots, zoning, population, households, buildings, usage, and etc. This study aims to define the demands of land use information for spatial planning. From literature reviews, case studies, and survey, this study shows those findings as following. First most spatial planners suffer from the difficulty of gathering land use information. Second, the priority order of the information could be shown by survey. Third, the unit and renewal period of the spatial information could be defined. Those findings could be a base of information systems for spatial planning.