• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.12
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• pp.2878-2884
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• 2014

The Smishing attacks are caused using smartphone since 2013. Smishing hacking attacks are increasing due to the approximately 104 million private information leakage incidents by the 3 domestic credit card companies occurred in January 2014. The Smishing attack occurred in conjunction with hacking illegal leakage of personal information and direct financial damage. In this paper, i am analyze real-world case studies in the lab and study accident on Smishing Mobile Forensic analysis. I am study of a real case Smishing hacking attacks. And studying evidence for a Mobile Forensic analysis of the technical principles of Smishing attacks. The study for the Mobile Forensic evidence proved the Smishing hacking attacks using Mobile Forensic technic and create Mobile Forensic reports. Through this paper, the research will be safe for the people living in the smartphone can be used safely and conveniently, with the development of Mobile Forensic technology, to study the extraction of Smishing accident evidences from the court.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.31 no.1
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• pp.163-192
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• 2020

Old maps of Dokdo are records with the physical specificities of a map while also holding historical meanings and evidencial values as ancient writings. Therefore more detail and meaningful descriptions are needed than other general records. However, in comparison to the high interest in these maps, there is a lack of systematic and integrative descriptions. Hence, this study aimed to propose the description elements of the old maps of Dokdo holding evidential values. For this purpose, first, literature reviews and the characteristics of the old maps of Dokdo were analyzed. Next, for determining description elements using institutions that possess old maps of Dokdo, case studies were conducted in 12 domestic and foreign institutions and compared the rules of ISAD(G). The final description elements were suggested by reflecting on the evaluation of five experts in old maps. Fifty description elements in a total of 8 areas - identity areas, context areas, content and structure areas, conditions of access and use areas, allied materials areas, note areas, description control areas, and other areas were proposed.

• International Area Studies Review
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• v.16 no.1
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• pp.275-301
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• 2012

This study analyzes the regional disparity in India between 24 states over the period 1980 to 2009. The traditional regressive and spatial autoregressive models are used that includes measures of spatial effects. The results provide no evidence that convergence is valid in India. However, the results indicate that spatial interaction is an important element of state growth in India. The result of spatial analysis excluded two outliner states reveals more strong relationship between the weighted spatial income level and the state growth rates. Moreover, the results find that the coefficients of spatial lag of initial per capital and error terms are significantly negative. The coefficient of variation measures that the distribution of state income level has diverged over time. Therefore, this study concludes that the growth of regional state income does not have a tendency to converge rater than diverge. The results is rational because as the Indian economy is growing rapidly, some states grow faster than the others while initial poor states become the poorest ones, which increases regional disparity in India.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.30 no.2
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• pp.245-261
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• 2019

The purpose of this study was to investigate factors affecting the use of modern photographic records. Data was collected through a survey of 95 potential users for photographic records in future. Independent variables in this study included evidential value, informational value, usage value, intrinsic value. Dependent variable was selected as use intention for photographic records. The results of analysis of multi-regression analysis showed that evidential value and intrinsic value were found to have a positive impact on use intention for photographic records in modern korea. The results from this study can be used as important basic data for building archives for photographic record or for developing the policy for effective photographic records management.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.6
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• pp.1283-1292
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• 2012

As delivery services market has grown the damage cases are also continuously increased. When using delivery services, Customers would not be compensated in any way. Perhaps worse, losing a cargo would create a great deal of trouble. Because the lack of evidence, they takes a lot of time to clarify who is responsible. To prevent these things, we must create, collect, maintain and confirm. In this paper, we introduce new delivery system with a trusted third party for non-repudiation services. Moreover, in damage case, we show that the proposed system is efficient and provide non-repudiation. Using sending and receiving codes, the proposed system identifies a responsible subject with quickness and clearness.

• Journal of Labour Economics
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• v.34 no.1
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• pp.71-101
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• 2011

Using an establishment-level panel data drawn from the employment insurance administrative DB, this study investigates the relationship between elderly and youth employment in Korea. The primary focus of interest is whether or not the ageing of workforce and an increase in elderly employment have negative impacts on youth employment. In the regression using the full sample, we find the evidence that a movement in elderly employment and ageing workforce are positively related to youth employment. However, we do not find consistent evidence of the positive impact of the elderly employment on youth employment in the estimations using sub-samples divided by various criteria.

• Korea journal of population studies
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• v.22 no.1
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• pp.5-36
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• 1999

본 논문은 우리나라 청소년 인구의 장기적 경제활동참여율 변동추이와 고용(실업)구조에 있어서의 변화에 관한 연구이다. 청소년층의 경제활동참여와 취업은 학교교육의 이수, 군복무, 결혼·출산을 통한 자신의 가족형성 등 일련의 생애전이과정(life-course transitin)과의 긴밀한 연계속에서 이루어지며 따라서 집단적으로는 연령단계에 따라서 큰 변화를 보인다. 본 논문에서는 먼저 지난 20여년간(1980년대-1990대) 청소년층의 연령단계별 경제활동참여 및 취업률이 어떻게 변화해 왔는가를 살펴본다. 청소년기에는 학교에서 노동시장으로의 진입과정(school-to-work transition)을 포함하고 있기 때문에 청소년층의 경제활동참여율 및 취업률은 무엇보다 동 연령집단의 취학률 및 진학률의 변화와 직접적으로 연결되어 있다. 본 논문에서 제시되는 자료에 의하면 지난 20여년간 우리나라 청소년층의 고등학교 및 대학진학률은 지속적이고 급격하게 상승하고 있었던 것으로 나타나고 있으며, 따라서 이러한 변화가 그들의 경제활동참여율 및 고용구조에 있어서의 변화에 미친 영향을 경험적 자료를 통하여 살펴본다. 1980년대 초반이후 우리나라 학교교육체제에 있어서의 변화가 청소년층의 취업구조에 미친 가장 주요한 영향 중의 하나는 높은 대학진학률에 따른 청소년 노동력의 고학력화와 그에 따른 고(高)실업의 문제이다. 본 논문에서는 사회구조적 요인과 고실업을 낳는 노동시장에 있어서의 불평등한 기회구조에 관한 이론적 논의와 경험적 증거들을 제시한다.

• Korean Journal of Cognitive Science
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• v.4 no.1
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• pp.261-294
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• 1993

Most of expert systems,as a rule-based system,should be convenient to modify a rule and to insert a new rule, which is called modularity of rules. When we think correlated evidences in expert systems. conventional systems are too local to recognize the common origin of the information, and they would update the belief of the hypothesis as if it were supposed by independence soureces. In this paper to overcome such drawbacks we propose Fuzzy Belief Network which is based on the Beysian Network which provide the modulartiy between rules. To build Fuzzy Belief Network, we define nodes and links and propose algorithms for data fusion in individual node and for propagation belief value obtained as a result of data fusion.

• Journal of Labour Economics
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• v.43 no.1
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• pp.35-57
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• 2020

Using the Korea Labor and Income Panel Study(KLIPS), this study analyzes the effects of profit sharing on employer-provided training. The estimation results of the fixed effect model that controls for endogeneity show that the workers of profit-sharing firms have a 6.7%-6.8%p higher probability of receiving employer-provided training than the workers of firms without profit sharing. They also show that the workers of profit-sharing firms have a 3.3%p higher likelihood of having employer-provided OJT than their counterparts. The impacts of profit-sharing on employer-provided training appear consistently regardless of the estimation models and in the subsamples. These findings support the hypothesis that profit-sharing promotes employer-provided training.

• The Korean Journal of Financial Management
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• v.16 no.2
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• pp.91-118
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• 1999

본(本) 연구(硏究)는 기업(企業)의 소유구조(所有構造)와 기업가치(企業價値) 사이의 관계를 분석하여 횡단면(橫斷面) 요인(要因)과 시계열(時系列) 요인(要因)을 결합하는 이론적(理論的) 모형(模型)을 제시하며, 또한 제시된 모형(模型)을 한국증권시장(韓國證券市場)의 자료(資料)를 이용하여 실증적(實證的)으로 분석하여 절충가설이 우리나라 기업에 적용될 수 있는지를 검토하였다. 본(本) 연구(硏究)에서는 기업가치(企業價値)를 나타내는 대용변수(代用變數)로 시장가치 대 장부가치비율을, 독립변수(獨立變數)로는 대주주 1인 지분율을 그리고 통제변수(統制變數)로는 광고비 정도, 기업규모, 재무레버리지, 30대 재벌 비재벌의 가변수(假變數)를 사용하였다. 실증분석 결과 본(本) 연구(硏究)에서 제시된 모형이 상당한 의미를 가지나, 모형(模型)의 설명력(說明力)은 비교적 낮아 본(本) 연구(硏究)에서 제시된 설명변수(說明變數)들이 자본구조(資本構造)의 변동(變動)을 8%정도 설명하고 있다. 또한 본(本) 연구(硏究)에서 제시된 독립변수 대주주 1인의 지분율과 이를 제곱한 것은 통계적으로 의미가 있는 변수가 되고 있다. 이는 대주주 1인의 지분율과 기업가치(企業價値) 사이에는 곡선관계(曲線關係)가 존재한다는 절충가설(折衷假說)을 지지하는 강력한 증거이다. 그리고 본(本) 연구(硏究)에서 제시된 통제변수(統制變數)인 광고비 정도, 기업규모, 재무레버리지 그리고 30대 재벌 비재벌 가변수(假變數) 등은 기업가치(機業價値)를 결정하는 통계적인 의미를 갖는 변수로 밝혀졌으며 회귀계수(回歸係數)의 부호도 기대하였던 바와 일치하고 있다.