• Journal of the Korean Professional Engineers Association
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• v.34 no.5
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• pp.69-72
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• 2001

The national 2G-3G roaming is emerging as one of essential and important issues In Korea in connection with the recent granting of 3G licenses. Accustomed to the current seamless coverage and superb quality of 2G networks, many subscribers have very high expectations of an equal or better service provisioning by 3G networks. However, it is very unlikely for 3G operators to successfully build their networks as comprehensive as the current 2G networks in the beginning of network implementation and commercial launch. Therefore,3G operators are seriously considering the national 2G-3G roaming in Korea. In this paper. 1 would like to discuss and present a technical implementation scheme and problems that need to be solved fer successfully realizing the national 2G-3G roaming.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.467-467
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• 2012

As the features of recent flood are spatially concentrated, loss of life and property increase by the impact of climate change. In addition to this the public interest in water control information is increased and socially reasonable justification of water control policy is needed. It is necessary to estimate the flood risk in order to let people know the status of flood control and establish flood control policy. For accurate flood risk analysis, we should consider inter-relation between causal factors of flood damage. Hence, flood risk analysis should be applied to interdependence of the factors selected. The Bayesian networks are ideally suited to assist decision-making in situations where there is uncertainty in the data and where the variables are highly interlinked. In this research, to provide more proper water control information the flood risk analysis is performed using the Bayesian networks to handle uncertainty and dependency among 13 specific proxy variables.

• The Journal of the Korea Contents Association
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• v.11 no.11
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• pp.137-144
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• 2011

This study explored the risk sharing mechanism in the US TV drama industry. The hollywood system of TV production and distribution can be understood to be the result of the efforts to reduce the uncertainty and the risk of investment. Since the 1990s, the vertical integration of major studios and networks has been one of the core strategies for risk sharing. In the strategy, the most important role of networks is to schedule new series that the affiliated studios produce. Networks also provide the new series their brand value. On the other hand, the most important role of studios in the vertical integrated environment is to provide the affiliated networks the infrastructures for production and distribution, financial management, and product management. In addition, networks keep the right on the series in the secondary markets, and attempt to increase the aggressive investment on new series on the base of the rights. However, such a risky investment can be the potential burden and risk for the networks in the future. This paper shows the importance of the reasonable risk sharing in the television drama industry to the Korean TV drama industry that has experienced the conflict between networks and independent production companies.

• The Journal of Information Systems
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• v.9 no.1
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• pp.27-44
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• 2000

The structure of neural networks is represented by a weighted directed graph with nodes representing units and links representing connections. Each link is assigned a numerical value representing the weight of the connection. In learning process, the values of weights are adjusted by errors. Following experiment results, the interval of adjusting weights, that is, epoch size influenced neural networks＇ performance. As epoch size is larger than a certain size, neural networks＇performance decreased drastically. And the number of hidden layer＇s node also influenced neural networks＇performance. The networks＇performance decreased as hidden layers have more nodes and then increased at some number of hidden layer＇s node. So, in implementing of neural networks the epoch size and the number of hidden layer＇s node should be decided by systematic methods, not empirical or heuristic methods.

• Korean Journal of Child Studies
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• v.17 no.2
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• pp.61-78
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• 1996

The purpose of this study was to describe maternal social networks and to examine their relationships to maternal perceptions of parenting task difficulty. One hundred and thirty-three mothers of preschool children responded to a questionnaire indicating individuals in their networks, support functions, and perceptions of task difficulty. Mothers reported an average of 6.5 persons in their networks, including primarily with her own mother, the husband, mother-in-law, and sisters. While support was provided mainly by her husband and her own family members, the kinds of support varied depending on the person in networks. It was also found that support functions were different in terms of maternal job status, sex of the child, and the child's previous experience in day care or early childhood education settings. Emotional support from networks was significantly related to parenting task difficulty, especially in daily routine care. Mothers who perceived more emotional support from networks reported parenting to be less difficult.

• Journal of Families and Better Life
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• v.17 no.2
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• pp.43-54
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• 1999

This study examined the impact of attachment styles on the size and the level of functions of social networks. 270 mothers of school children responded to the questionnaire and were classified into secure avoidant and anxious attachment groups. Findings indicated that three continuous attachment indexes security avoidance anxiousness and the size and the level of functions of social networks were not affected by mother's age educational level and employment status. However singnificant attachment style effects were obtained for the size and the level of functions of social networks. Secure subjects perceived their husbands closer and more important and listed more nonkin members in their netoworks than anxious subjects. important and listed more nonkin members in their networks than anxious subjects Also secure people perceived receiving more assistance from network members including household tasks money information and advice Secure and anxious subjects reported more emotio al support from networks than avoidant people.

• Korean Linguistics
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• v.48
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• pp.223-268
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• 2010

The purpose of this paper is to build a semantic networks of the 'cooking class' verb (based on 'CoreNet' of KAIST). This proceedings needs to adjust the concept classification. Then sub-categories of [Cooking] and [Foodstuff] hierarchy of CoreNet was adjusted for the construction of verb semantic networks. For the building a semantic networks, each meaning of 'Cooking verbs' of Korean has to be analyzed. This paper focused on the Korean 'heating' verbs and 'non-heating'verbs. Case frame structure and argument information were inserted for the describing verb information. This paper use a Propege 3.3 as a tool for building "cooking verb" semantic networks. Each verb and noun was inserted into it's class, and connected by property relation marker 'HasThemeAs', 'IsMaterialOf'.

• Journal of Contemporary Eastern Asia
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• v.13 no.1
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• pp.1-4
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• 2014

• Journal of Families and Better Life
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• v.31 no.4
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• pp.47-64
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• 2013

This study aimed to explore the social networks which married immigrant women have in Korea. Special attention was paid to factors such as individual, family, and migrant characteristics contributing to the different patterns of social networks. I drew upon the nationally representative data on 60,719 immigrant women married to Korean men from the '2009 Survey on Korean National Survey on Multicultural Families.' Results showed that the foreign wives tended to maintain a connection with our society through contact with their neighbors and participation in social gatherings. Findings also showed that the types of social networks by the number of trusted neighbors and meetings were diverse among the immigrant women. In addition, the factors differentiating the types were mostly associated with socioeconomic resources or Korean proficiency. More interestingly, the immigrant women's contacts with their family members in their homeland contributed to their maintenance of more active social networks. These results provided a useful outlook on the relationship between patterns of social networks and the characteristics of the married immigrant women, which eventually showed a heterogeneous nature among them. At the societal level, supportive systems for enriching immigrant women's social networks should be developed particularly in terms of not their dependency, but their potential contributions to our society.

• International Commerce and Information Review
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• v.9 no.3
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• pp.305-320
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• 2007

With expanded use of B2B(between enterprises), B2G(between enterprises and government) and EDI(Electronic Data Interchange), and increased amount of available network information and information protection threat, as it was judged that security can not be perfectly assured only with security technology such as electronic signature/authorization and access control, Bayesian networks have been developed for protection of information. Therefore, this study speculates Bayesian networks system, centering on ERP(Enterprise Resource Planning). The Bayesian networks system is one of the methods to resolve uncertainty in electronic data interchange and is applied to overcome uncertainty of abnormal invasion detection in ERP. Bayesian networks are applied to construct profiling for system call and network data, and simulate against abnormal invasion detection. The host-based abnormal invasion detection system in electronic trade analyses system call, applies Bayesian probability values, and constructs normal behavior profile to detect abnormal behaviors. This study assumes before and after of delivery behavior of the electronic document through Bayesian probability value and expresses before and after of the delivery behavior or events based on Bayesian networks. Therefore, profiling process using Bayesian networks can be applied for abnormal invasion detection based on host and network. In respect to transmission and reception of electronic documents, we need further studies on standards that classify abnormal invasion of various patterns in ERP and evaluate them by Bayesian probability values, and on classification of B2B invasion pattern genealogy to effectively detect deformed abnormal invasion patterns.