• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.415-418
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• 2004

기업간 전자상거래를 위한 국제표준인 ebXML 은 ebBPSS(ebXML Business Process Specification Schema)와 CPA(Collaboration Protocol Profile)에 기반하여 거래 당사자들이 협업 형태의 업무 처리 절차에 따라 문서 및 데이터를 주고 받을 수 있도록 해 준다. 거래 당사자들의 내부 업무처리 시스템에 연동되어 B2B 업무를 처리할 수 있도록 해주는 시스템을 BSI(Business Service Interface)라 하며, 이는 트랜잭션 관리, 업무 프로세스의 코레오그래피(Choreography), 문서 관리, 보안 관리 등 협업과 관련된 대부분의 역할을 수행하게 된다. 기업간 협업에 있어 가장 중요한 사항 중 하나는 어떤 상황에서도 양쪽의 협업상태 정보는 일관성을 유지해야 한다는 것이다. 이는 거래의 신뢰도를 확보하기 위한 필수사항이라 할 수 있다. 본 논문에서는 ebXML 프로토콜에 따라 거래행위시 협업상태 정보가 양측 거래파트너에서 각기 다르게 나타날 수 있는 상황을 살펴 보고 이에 따른 BSI 시스템의 대처방안에 대해 살펴보고자 한다.

• Journal of Korea Port Economic Association
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• v.35 no.4
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• pp.107-120
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• 2019

Crude oil is a resource that is being used as a raw material in major industries, representing the price of the raw material market. It is also an important element that affects the shipping market in terms of fuel costs for freight vessels. As a result, crude oil and freight rates are closely related. Therefore, from January 2009 to June 2019, this study analyzed the dependency structure between oil price (WTI) and freight rates (BDI, BCI, BPI, BSI, and BHI) using daily data. The main results are summarized as follows. First, according to the copula results, survival Gumbel copula in WTI-BDI, Clayton copula in WTI-BCI, Survival Joe copula in WTI-BPI, Joe copula in WTI-BSI, and survival Gumbel copula in WTI-BHI were selected as the best-fitted model. Second, looking at Kendall's tau correlation, there is a positive correlation between BDI and oil price. Furthermore, freight rate index (BCI, BPI, BSI) and oil price show positive dependencies. In particular, the strongest dependence was found in BCI and oil price returns. However, BHI and oil price show a negative dependency. Third, looking at the tail-dependency structure, a pair between oil price and BDI, BCI showed a lower tail-dependency. The pair between oil price and BSI showed the upper tail-dependency.

• Digital Contents
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• no.11 s.126
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• pp.58-60
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• 2003

3분기 DB산업 기업경기 실적 최저 장기적인 국내 경기 침체가 지속되고 있는 가운데, 물류 대란 파동과 태풍‘매미’로 인한 엄청난 피해가 한반도를 급습한 3분기는 국내 산업기반을 흔들 정도의 메가톤급 충격이 연속으로 나타났다.이러한 충격은 DB 산업에도 고스란히 전해져, 3분기 실적 DB-BSI는 39로 올해 최저를 기록했으며, 4분기 전망 DBBSI 또한 71로 낮아져 경기회복에 부정적 전망이 늘어난 것으로 나타났다

• The Korean Journal of Applied Statistics
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• v.24 no.5
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• pp.745-758
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• 2011

An Economic Sentiment Indicator(ESI) is a composite indicator of business survey indices(BSI) and consumer survey indices(CSI). The ESI designed to reflect economic agents' (this includes producers and consumers) overall perceptions of economic activity in a one-dimensional index. The European Commission has published an ESI since 1985. This paper demonstrates the construction of an ESI for the Korean economy. The BSI and CSI components (having a high correlation and a leading feature with respect to GDP) are selected to construct the ESI and they are aggregated using a weighted average and then scaled to have a long-term average of 100 and a standard deviation of 10. Thus values greater than 100 indicate an above-average economic sentiment and vice versa. The newly constructed Korean ESI that extends to January 2003 shows a good tracking performance of GDP and adequately reflects the overall perception of economic activity.

• Sleep Medicine and Psychophysiology
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• v.16 no.2
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• pp.85-90
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• 2009

Introduction: There has been an increasing interest in the relationship between sleep and suicidality. In addition, suicidal patients habitually report their sleep problems. Although sleep-related complaints and electroencephalographic changes are generally encountered in psychiatric disorders, sleep complaints such as insomnia, hypersomnia and nightmares are more common in suicidal patients. In current study, we aimed at investigating the relationship between self-reported sleep duration and suicidality in general population. Methods: One thousand general population (male:female=500:500, mean age=$39.6{\pm}11.6$ years, ranged age=20-77 years) completed Center for Epidemiologic Study-Depression (CES-D), Beck Suicide Intent scale (BSI), Spielberger State-Trait Anger Expression Inventory (STAXI), Barratt Impulsiveness Scale (BIS), Morningness-Eveningness Scale (MES) and brief questionnaire of sleep habits. Results: After controlling for age and sex, score of BSI was correlated positively with the score of CES-D, STAXI and BIS on partial correlation analysis ($r_p$=0.251; p<0.001, $r_p$=0.352; p<0.001, and $r_p$=0.175; p<0.001, respectively). In addition, score of BSI was inversely correlated with the score of MES (rp=-0.066; p=0.037). However, score of BSI showed no significant correlation with sleep duration. However, regression analysis revealed that short (<6 hrs) or long (>10 hrs) sleep duration, the family history of psychiatric illness, the score of CES-D, and the score of STAXI predicted higher score of BSI significantly in total subjects (F=17.837, adjusted $R^2$=0.166; p=0.003, p=0.003, p<0.001, and p=0.003, respectively). This model was explained better in depressed subjects with 16 or higher score of CES-D (F=9.920, adjusted $R^2$=0.298). Conclusion: Current result suggested that not only short sleep duration (<6 hrs) but also long sleep duration (>10 hrs) might be related to suicidality.

• The Korean Journal of Applied Statistics
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• v.23 no.1
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• pp.63-71
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• 2010

Business entrepreneurs reflect their views of domestic and foreign economic activities on their operation for the growth of their business. The decision, forecasting, and planning based on their economic sentiment affect business operation such as production, investment, and hiring and consequently affect condition of national economy. Business survey index(BSI) is compiled to get the information of business entrepreneurs' economic sentiment for the analysis of business condition. BSI has been used as an important variable in the short-term forecasting models for business cycle analysis, especially during the the period of extreme business fluctuations. Recent financial crisis has arised extreme business fluctuations similar to those caused by currency crisis at the end of 1997, and brought back the importance of BSI as a variable for the economic forecasting. In this paper, the meaning of BSI as an economic sentiment index is reviewed and a GUIDE regression tree is constructed to find out the factors which affect on BSI. The result shows that the variables related to the stability of financial market such as kospi index(Korea composite stock price index) and exchange rate as well as manufacturing operation ratio and consumer goods sales are main factors which affect business entrepreneurs' economic sentiment.

• 프린팅코리아
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• s.20
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• pp.78-81
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• 2004

올 1/4분기에도 기업들이 현장에서 느끼는 체감경기 위축이 지속될 것으로 나타나, 본격적인 경기 회복에는 다소 시일이 걸릴 것으로 전망됐다. 대한상공회의소가 최근 설문조사를 통해 집계, 발표한 자료에 따르면 1/4분기의 BSI 전망지수는 전분기(90)보다 낮은 '89'로 기준치를 밑돌아 기업들이 여전히 향후 경기를 어둡게 보고 있는 것으로 나타났다. BSI 추이를 보면 작년 2/4분기에 정점(133)을 형성한 이후 3분기 연속 하락을 거쳐 올해 2/4분기(97)에는 상승세로 반전되었으나, 다시 3/4분기부터 3분기를 연속해 기준치를 크게 밑도는 횡보세(3분기 '89', 4분기 '90', 1분기 '89')를 보이고 있다.

• 정보화사회
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• s.187
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• pp.50-53
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• 2007

• 정보화사회
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• s.186
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• pp.60-63
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• 2007

• 정보화사회
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• s.190
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• pp.34-35
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• 2008