• Journal of Venture Innovation
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• v.6 no.2
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• pp.1-19
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• 2023

This study was conducted to empirically analyze the impact of issue leadership and learning agility on the innovation behavior of startup employees. Issue leadership was subdivided into issue creation, audience engagement, and issue execution. Learning agility was subdivided into five factors: feedback seeking, information orientation, reflection, experimentation, and agility. The survey was conducted among employees working in startups. In this study, 300 valid surveys were analyzed. Hierarchical regression was used to test the hypotheses. The results of the empirical analysis were as follows Among the sub-factors of issue leadership, issue creation, audience engagement, and the sub-factors of learning agility, information orientation, reflection, experimentation, and agility had a significant positive effect on startup employees' innovation behavior. On the other hand, issue execution, a subcomponent of issue leadership, and feedback seeking, a subcomponent of learning agility, did not have a significant effect on innovative behavior. In addition, the magnitude of the effect on innovative behavior was in the order of experimentation, agility, issue creation, information orientation, audience engagement, and reflection. Therefore, this study on the effect of issue leadership and learning agility on innovative behavior concludes that issue creation, audience engagement, information orientation, reflection, experimentation, and agility play an important role.

• The Korean Nurse
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• v.25 no.2 s.135
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• pp.20-27
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• 1986

• The Journal of the Korea Contents Association
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• v.15 no.7
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• pp.460-476
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• 2015

The purpose of this study is to provide practical implications on government crisis management strategies and on the use of SNS in crisis management. Specifically, this study analyzed Ministry of Drug and Food Safety's responses to paraben toothpaste issue, media coverage of paraben toothpaste issue, and public responses to paraben toothpaste issue. Through textual analysis and the network analysis of 45 news articles and 645 tweets, this study found that Ministry used one-way communication strategy and mostly negative issues regarding Ministry's crisis response strategies were diffused via the media and Twitter. This study was meaningful in that it highlighted the importance of media relations and use of SNS in crisis management. The findings of this study provide useful implications for government officials and PR practitioners in their crisis management and communication strategy.

• Journal of the Korean Data and Information Science Society
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• v.26 no.2
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• pp.409-418
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• 2015

With the development of mobile devices and Internet, information exchange has actively been made through SNS and Blogs. Blogs are widely used as a space where people share their experience after their visit to tourist attractions. We propose a method of recommending associated tourist attractions based on tourists' opinions using issue analysis, association analysis, and sentimental analysis for various online reviews including news in order to help to develop tour products and policies. The result shows that north area of Chungbuk province has been selected as issue attractions, and associated attractions/keywards have been identified for given well-known attraction. Positive/negative opinion for review texts has been analyzed and user can grasp the reason for the sentiments. Multidimensional analysis technique has been integrated to derive additional sophisticated insights and various policy proposal for smart tourism.

• Journal of the Korean Society for information Management
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• v.35 no.2
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• pp.115-139
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• 2018

Due to the value and the importance of preservation of disaster web records, to build disaster archives is globally becoming a national challenge. This study proposes a acquisition methods based on the issue life cycle model for collecting disaster web records. We firstly analyzed web records acquisition status, methods and period of domestic and foreign disaster archives. In addition, the issue life cycle model was derived by collecting and analyzing the disaster issues in the last 10 years. As the results of the analysis, the issue life cycle model was divided into the sudden type and periodic type according to the characteristics of the disaster. In conclusion, this study propose a method to collect web records according to each model and verify its applicability.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.392-395
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• 2015

This study analyzes critical factors that affect issues of resolving time in BIM-based coordination using a case study. According to recent buildings that are meant to be more complex, BIM-based design coordination is regarded as an essential stage of the project delivery process. In the design coordination phase, a relocation of architectural, structural, mechanical, and electrical elements is conducted to avoid interference. In addition, the procedure of the development of each element in detail for the actual construction is carried out. Delays in coordination can affect delays in the entire delivery schedule of the project, and therefore many researches have focused on efficient coordination methods and how to shorten the period. In this study, we conducted a detailed analysis of the issue-resolving process using a case study, and found out that the participation of decision-makers for issue-resolving and the physical combination of trades affect delays in coordination time. In particular, we proposed the concept of organizational relation, indicating the level of decision-makers for issue-resolving, and the concept of physical relation, indicating the physical complexity of the issue, and we analyzed the effects of coordination delays.

• Special Issue of the Society of Naval Architects of Korea
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• 2017.10a
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• pp.73-79
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• 2017

IACS enacted Harmonized CSR(CSR-H) to meet the IMO GBS applied from 1 July 2016. CSR-H is clearly complement and integrate than present CSR-BC & CSR-OT. One of the biggest issue in new rule is structural analysis. In CSR-H, structural analysis must carried out entire each cargo area including the aft bulkhead of the aftermost cargo hold and the collision bulkhead. Accordingly, new load and boundary conditions are present, an additional structural reinforcement is required by the structural analysis result for each cargo hold. In this study, we applied CSR-H to existing 158K DWT CLASS CRUDE OIL TANKER in order to compare and analyze the hull changes. It is useful for the application of the CSR-H to the similar vessel and helpful in finding the optimized structural design.

• Journal of Communications and Networks
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• v.14 no.5
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• pp.533-539
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• 2012

The performance analysis of wireless geolocation in a non-line-of-sight (NLOS) environment is a very important issue. Since Cramer-Rao lower bound (CRLB) determines the physical impossibility of the variance of an unbiased estimator being less than the bound, many studies presented the performance analysis in terms of CRLB. Several CRLBs for time-of-arrival (TOA), pseudo-range TOA, angle-of-arrival (AOA), and signal strength (SS) based positioning methods have been derived for NLOS environment. However, the performance analysis of time difference of arrival (TDOA) and TDOA/SS based geolocation techniques in a NLOS environment is still an opening issue. This paper derives the CRLBs of TDOA and TDOA/SS based positioning methods for NLOS environment. In addition, theoretical analysis proves that the derived CRLB for TDOA is the same as that of pseudo-range TOA and the TDOA/SS scheme has a lower CRLB than the TDOA (or SS) scheme.

• Analyses & Alternatives
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• v.2 no.1
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• pp.107-125
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• 2018

This paper aims to elucidate the historical significance and issues about DPRK-Japan relations in terms of the Korean Peninsula-Japan relations. The first issue is the 'Treaty on Basic Relations between Japan and the Republic of Korea', and DPRK-Japan relations during the Cold War. The Relations Order between the Korean Peninsula and Japan, of 1965 ("65 Order), was closely linked with inter-Korean relations. The second issue is a critical re-interpretation of previous studies on the Stockholm agreement. Previous studies have focused on analyzing the question "Why did North Korea and Japan agree to Stockholm?", In other words, what was the intention of North Korea and Japan in Stockholm? This paper adds to raise the question of "How Did the Stockholm can be agreed?", to critically review the analysis performed by the previous studies. Through the analysis of this question, this paper reveals that the relationship between North Korea and Japan is on the qualitative change. And, based on this analysis, this paper argue that the South Korean government should attempt more active engagement and deploy more comprehensive approach to improve the relationship between North Korea and Japan.

• The Journal of the Korea Contents Association
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• v.20 no.6
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• pp.556-578
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• 2020

There are many different researches about how to analyze issues based on real-time news streams. But, there are few researches which analyze issues hierarchically from news articles and even a previous research of hierarchical issue analysis make clustering speed slower as the increment of news articles. In this paper, we propose a hierarchical and incremental clustering for semi real-time issue analysis on news articles. We trained siamese neural network based weighted cosine similarity model, applied this model to k-means algorithm which is used to make word clusters and converted news articles to document vectors by using these word clusters. Finally, we initialized an issue cluster tree from document vectors, updated this tree whenever news articles happen, and analyzed issues in semi real-time. Through the experiment and evaluation, we showed that up to about 0.26 performance has been improved in terms of NMI. Also, in terms of speed of incremental clustering, we also showed about 10 times faster than before.