• 한국항해항만학회지
• /
• 제47권2호
• /
• pp.93-99
• /
• 2023

This study aimed to determine relationships among risk factors influencing container port operation using Bayesian network. Risk factors identified from prior studies were classified into five groups: human error, machinery error, environmental risk, security risk, and natural disasters. P anel experts discussed identified risk factors to fulfil conditional probability tables of the interdependence model. The interdependence model was also validated by sensitivity analysis and provided an interrelation of factors influencing the direction of each other. Results of the interdependence model were partially in line with results from prior studies while practices in the global port industry confirmed interrelationships of risk factors. In addition, the relationship between top-ranked risk factors can provide a schematic drawing of the model. Accordingly, results of this study can expand the prior research in the Korean port industry, which may help port authorities improve risk management and reduce losses from the risk.

• Journal of Information Technology Applications and Management
• /
• 제12권1호
• /
• pp.213-229
• /
• 2005

Cost overrun or schedule delay of the software development project happens frequently despite that software developers continue to make every effort for the effective management of the projects. Previous researches have ascertained that these problems are ascribed to the uncertainty of projects and the improper management of the projects. The purposes of this research are to investigate the impacts of user participation and task interdependence on the performance of the projects and also to find out the appropriate project management method to improve the project performance. Even though the model fitness of the path model is proved to be very high, the verification of the hypotheses showed a variety of results including the four verifications and the one refutation of the hypotheses as well as the suggestion of one alternative hypothesis. The contribution of this research is that the integration model is proposed and verified, comprising the relationship among the user participation, the task interdependence, and the performance of software development projects. A project manager can utilize the implication of this research for an effective management of software development project.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제17권9호
• /
• pp.2419-2435
• /
• 2023

Command and control networks(C2N) exhibit evident multi-network interdependencies owing to their complex hierarchical associations, interleaved communication links, and dynamic network changes. However, the existing command and control networks do not consider the effects of dependent nodes on the load distribution. Thus, we proposed a command and control networks load allocation strategy based on interdependence strength. First, a new measure of interdependence strength was proposed based on the edge betweenness, which was followed by proposing the inter-layer load allocation strategy based on the interdependence strength. Eventually, the simulation experiments of the aforementioned strategy were designed to analyze the network invulnerability with different initial load capacity parameters, allocation model parameters, and allocation strategies. The simulation indicates that the strategy proposed in this study improved the node survival rate of the interdependent command and control networks model and successfully prevented cascade failures.

• 정보처리학회논문지:소프트웨어 및 데이터공학
• /
• 제8권3호
• /
• pp.129-136
• /
• 2019

자연어 표현에는 인물, 조직, 장소, 제품 등의 다양한 개체들이 존재한다. 이러한 개체는 다양한 의미를 가질 수 있다. 이러한 개체가 갖는 중의성 문제는 자연어 처리 분야에 있어 매우 도전적인 과제이다. 개체 링킹(Entity Linking)이란 텍스트에 등장한 개체명을 지식베이스 내의 적절한 개체로 연결해주는 작업이다. 개체 링킹을 위한 대표적인 방법론인 짝 연결 접근법(Pairwise based method)은 한 문장에서 등장한 개체가 두 개 이상일 경우 서로의 연관성을 이용해 개체 링킹을 하는 방법이다. 이 방법은 동일 문장에서 등장하는 개체들 간의 상호의존성(interdependence)만을 고려하고 있어 포괄적인 상호의존성(Global interdependence)이 부족하다는 한계를 갖고 있다. 본 논문에서는 개체 링킹을 위해 RDF 형태의 지식베이스 정보를 바탕으로 Word2vec을 활용한 Entity2vec 모델을 생성하였다. 그리고 생성된 모델을 사용하여 각 개체에 대한 랭킹을 하였다. 본 논문에서는 짝 연결 접근법의 한계점을 보완하기 위해 포괄적인 상호의존성을 바탕으로 짝 연결 접근법을 고안하고 구현 및 실험을 통해 기존의 짝 연결 접근법과 비교하였다.

• 문화기술의 융합
• /
• 제5권3호
• /
• pp.113-118
• /
• 2019

본 연구는 후강퉁 제도의 시행 이후에 중국, 홍콩, 대만 및 싱가폴 증권시장 간의 상호의존성이 어떻게 변화되었는지를 수익률과 변동성을 동시에 분석할 수 있는 EGARCH-GED 모형을 이용하여 분석하였다. 후강퉁 제도의 시행 이후 대만 증권시장의 대중화권 증권시장과의 상호의존성은 크게 약화되었으며, 싱가폴 증권시장의 대중화권 증권시장과의 상호의존성은 존재하지 않는 것으로 나타났다. 반면에 후강퉁 제도의 시행 이후에 중국과 홍콩 증권시장 간의 상호의존성은 크게 강화된 것으로 나타났다. 이는 후강퉁 제도의 시행에 따라 중국과 홍콩 투자자들이 두 증권시장에 투자할 수 있는 여건이 개선됨에 따른 결과로 추정된다. 따라서 대중화권 증권시장에서의 분산투자를 고려할 때에는 대만과 싱가폴 증권시장의 상호의존성 약화와 중국과 홍콩 증권시장의 상호의존성 강화를 고려하여 분산투자전략을 수립할 필요가 있을 것이다.

• 한국IT서비스학회지
• /
• 제13권3호
• /
• pp.93-110
• /
• 2014

With the explosive proliferation of smart devices that may be connected to the fast Internet, virtual desktop interfaces(VDI) are being implemented in enterprises allowing employees to work anywhere anytime in the same technological environment. As this kind of systems are intended to raise the work performance, a research model is constructed from the review of research literature on service quality and work design. The model consists of VDI system service quality (ubiquity, availability, compatibility, security and ease of use), system satisfaction, task performance and job satisfaction. As VDI is designed as a support system for cooperative work, the task interdependence adopted from the work design theory is postulated here as moderating the effect of user satisfaction on task performance and job satisfaction. 147 data points were collected by a survey of VDI users in a global firm and subjected to PLS analysis. Interestingly, ubiquity and compatibility seem to be not statistically significant for user satisfaction while availability, security and ease of use of VDI system are statistically significant. Task interdependence is found to be a relatively strong mediator between system user satisfaction and task performance, however, interestingly, the coefficient come out as negative. This may indicate that the influence of VDI user satisfaction on task performance would not be high in highly interdependent tasks. Considering that VDI is intended for supporting 'interdependence' in cooperative work, this finding is a bit surprising. In-depth discussions are made in the discussion followed by future research directions.

• 유통과학연구
• /
• 제19권5호
• /
• pp.23-34
• /
• 2021

Purpose: This study identifies the critical elements of relationship management required to be studied in distribution sciences to create a relational bond of watch manufacturers with their retailers in India. The offline watch retail market is undergoing a rapid transformation due to technology intervention in the product portfolio and the advent of online retailing. The study identifies the interrelationships amongst the constructs of interdependence, trust, affective commitment, and information exchange to form long-lasting relational bonds in the watch industry. Research design, data and methodology: We used a path analysis to investigate the relationship between interdependence, trust, affective commitment, and information exchange. Data has been collected from 143 watch retailers using judgmental sampling method. Results: The data analysis suggested the establishment of measurement and structural model. The absolute and relative goodness of fit models in the causal analysis are 0.628 and 0.959 suggesting a sufficient fit index. Based on the analysis of direct and indirect effects, the results indicate that trust fully mediates the effect of interdependence and information exchange of retailers with the manufacturer. Conclusions: Trust plays an important role in driving commitment and information exchange between watch manufacturers and retailers. Interdependence in the manufacturer-channel relationships would lead to affective commitment only when trust exists in the relationship. [AMAWATE, Vibhas.] in Web of Science and Scopus).

• 한국소성가공학회:학술대회논문집
• /
• 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
• /
• pp.231-235
• /
• 1999

An integrated finite element-based model is presented for the prediction of the three dimensional, transient thermo-mechanical behavior of the work roll in hot strip rolling. The model is comprised of basic finite element models which are incorporated into an iterative solution procedure to deal with the interdependence between the thermo-mechanical behavior of the strip and that of work roll, which arises from roll-strip contact, as well as with the interdependence between the thermal and mechanical behavior. Demonstrated is the capability of the model to reveal the detailed aspects of the thermo-mechanical behavior and to reflect the effect of various process parameters.

• 여성건강간호학회지
• /
• 제23권3호
• /
• pp.201-209
• /
• 2017

Purpose: The purpose of this study was to investigate actor and partner effects of sexual attitude and marital intimacy on sexual satisfaction in pregnant couples. Methods: Data were collected from 176 pairs of the pregnant couples visiting for prenatal care at hospitals from June 18 to September 24, 2016. The collected data were analyzed by paired t-test and Pearson's correlation coefficients using SPSS 18.0 and interdependent effect (Actor-Partner Interdependence Model analysis) through AMOS 18.0. Results: The sexual attitude and marital intimacy of the pregnant woman did not have a partner effect on the sexual satisfaction of her husband, respectively (${\beta}=.12$, p=.141), (${\beta}=.01$, p=.938). The sexual attitude of the husband had a partner effect on the sexual satisfaction of the pregnant woman (${\beta}=.13$, p=.021), but the marital intimacy of the husband did not show a partner effect (${\beta}=.07$, p=.202). Conclusion: Study suggests that the sexual attitude and marital intimacy of pregnant couples should be considered as factors when developing an intervention to improve sexual satisfaction in couples. Moreover, pregnant couples should participate in intervention together because the sexual satisfaction has conceptual view of interdependence in two-person relationships.

• 지식경영연구
• /
• 제13권2호
• /
• pp.53-72
• /
• 2012

Recently, an effective building and utilization of information system are essential in franchise firms as well as corporate management. Accordingly, this study is to examine the structural relationships among partnership quality of supplier, trust with a supplier and commitment, and franchise information system performance based on Henderson's(1990) information system partnership model and Lee and Kim's(1999) partnership model. For these purposes, the authors developed several hypotheses. The data were collected from 173 franchisors and analyzed with SPSS 18.0 and AMOS 18.0 The results are as following. First, sharing knowledge, interdependence, and mutual benefit influence supplier trust, but do not influence commitment. Second, supplier trust affect commitment and it prove that supplier trust is a full mediating role between partnership quality and commitment of franchise and information system supplier. Third, both supplier trust and commitment have a positive effect on performance of franchise information system. Therefore, it implies that supplier trust is significant factor in an performance of franchise information system. At the end of this paper, managerial and theoretical implications, limitations and future research directions were suggested.