• Journal of the Korean Institute of Intelligent Systems
• /
• v.22 no.1
• /
• pp.75-80
• /
• 2012

Abnormal navigating ships affact the ships navigating normal routes seriously. So VTS centers and Korean Coast Guard co-work(cooperate) closely to trace the ships which break the regulations and make accidents. But it is evident that there is limitations to indetify the risk factors caused by men. Unfortunately there is very few of the researches on the identificaton of risk elements by men. This paper is to implement the intelligent system for identifying abnormal navigating ships by using fuzzy inference.

• Journal of the Society of Disaster Information
• /
• v.7 no.4
• /
• pp.305-315
• /
• 2011

The purpose of this study is to strive people from expert and to make efforts to prevent the recurrence of government after su-chel, kim case. it is put out school strengthened safety measures continuously however external danger has increased. It is necessary to prevent revaluation of safety measures and improvement go through take the most basic safety measures, changing awareness to the external danger and reduce the loss to a minimum. There are some resolution to be effective management of guard and way to expand, application of CPTED technique and installation of school fence, liaison between increasing CCTV and equipment, improvement on operational school safety management.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2014.11a
• /
• pp.482-485
• /
• 2014

온라인 중고물품 거래의 장점은 인터넷을 사용하는 모든 사용자에게 자신이 팔고자 하는 물건을 쉽게 알릴수 있다는것이다. 하지만 온라인에서 중고물품 거래 시에 개인의 정보를 노출할 경우가 많아지게 되는데 이는 프라이버시를 침해할 수 있다. 온라인 중고물품거래시에 사용자들은 자신이 판매하는 물건과 함께 이메일 주소나 핸드폰 번호를 노출하게 되는데 이 정보를 소셜네트워크서비스에 연결하면 특정인에 정보를 획득할 수 있게 된다. 공격자는 온라인 중고물품거래가 진행되는 곳에서 특정인에 대한 정보를 획득한뒤 소셜네트워크서비스와 정보를 연결하여 특정인에 대한 스토킹이나 피싱, 금융사기같은 범죄를 할 가능성이 있다. 본 논문에서는 개인정보노출에 대한 위험성을 알아보기 위해 중고물품 사이트에서 획득한 개인정보를 소셜네트워크서비스에 연결하여 개인 식별가능성을 실험해 보았으며 이를 막기 위한 방법을 제안하였다.

• Korean Journal of Forensic Psychology
• /
• v.12 no.1
• /
• pp.15-33
• /
• 2021

In this study, we analyzed the difference in survival rates of those subject to electronic supervision of sex crimes based on the tracking of the period of recidivism and whether they were recidivism, and wanted to confirm the ability of the criminal record to predict recidivism. The criteria for recidivism were defined as cases where a conviction was confirmed due to a criminal case that occurred during the execution of electronic monitoring, and the date of recidivism was the date of occurrence of a case that was confirmed guilty. A total of 122 re-offenders were used in the analysis, and all of them were charged with electronic supervision for committing sex crimes. Studies have confirmed that the subjects commit the most recidivism within three years. In addition, in this study, the difference in survival rate between groups was analyzed after classifying mixed and sex recidivism cases. The number of members was 88 for the mixed recidivism group and 34 for the sex recidivism group. The analysis confirmed that both groups had the most recidivism within three years. There was a slight difference between the survival rate of the mixed recidivism group and the survival rate of the sex recidivism group. So the Log Rank Test and the Generalized Wilcoxon Test were conducted, but no statistically significant differences were identified(Wilcoxon statistic = 2.326, df = 1, p = .13, Log Rank = 1.345, df = 1, p = .25). Next, a Cox Regression analysis was performed to confirm the ability of the criminal record to predict recidivism. As a result, the number of criminal records(sex offense, violent crime) have been confirmed to be a good predictor of recidivism(X²=27.33, df=1, p< .001). As a result, the recidivism rate is gradually decreasing due to the implementation of the electronic monitoring. However, the duration of recidivism required by sex offenders in high-risk groups was found to be rather short. Currently, security measures against felons are being strengthened, so it is necessary to select high-risk groups. Therefore, based on the related studies, the characteristics of high-risk groups and the results of recidivism studies will be used as a basis for disposal within the criminal justice system, which will play a major role in granting objectivity.

• Korean Journal of Forensic Psychology
• /
• v.13 no.2
• /
• pp.99-119
• /
• 2022

Research on sex offense has shown that sex offenders are very heterogeneous. Sex offenders are heterogeneous in their probability of risk of recidivism. Some sex offenders are known to be much higher in their tendencies to reactivate than others. The study examined the predictive and explanatory power of static and dynamic risk factors in STATIC-99 and HAGSOR-Dynamic which have been used in Korean correctional facilities since 2014. STATIC-99 and HAGSOR-Dynamic showed moderate predictive accuracy for all crimes(AUC = .737, AUC = .597, respectively, ps < .001). However, when examining sex crime alone, only STATIC-99 predicted recidivism significantly(AUC = .743, p < .001). The incremental predictive power of HAGSOR-Dynamic was confirmed; the explanatory power of Model 2 comprising both static and dynamic risk factors were significant beyond Model 1 comprising only static factors(∆χ²= 12.721, p < .001), but this tendency was only applied to the model of all crimes. These findings were discussed with implications of practicing the sex offender assessment and treatment.

• Journal of Korea Port Economic Association
• /
• v.25 no.2
• /
• pp.57-72
• /
• 2009

The purpose of this paper is to show the empirical measurement way of operation risk evaluation in domestic seaports for overcoming the limitations which the traditional DEA method has by using 13 Korean ports in 2003 for 4 inputs(birthing capacity, cargo handling capacity, number of coastal guard vessel, number o f coastal special guard vessel ) and 5 outputs(Export and Import Quantity, Number of Ship Calls, number of coastal accident, number of coastal crime, number of coastal pollution). Because traditional DEA method has produced the limited set of information, negative DEA mixed with tier, stratification and layering methods should be adopted. The goal of negative DEA is to set up DEA models that will place the poor operating ports on or close to the empirical frontier. The core empirical results of this paper are as follows. First, Donghae ports should benchmark the operation way of Yeasu, Busan, Woolsan ports in terms of the middle and longterm base. Second, 5 ports(ports of Taean, Yeasu, Tongyoung, Busan, Sokcho) which were revealed as the poor operating ports in Negative DEA analysis should benchmark Incheon, Woolsan, Pohan, and Donhae ports. The policy implication to the Korean seaports and planners is that Korean seaports should introduce the new methods like Negative DEA of this paper for predicting the poor operating in the ports.

• 한국정보교육학회:학술대회논문집
• /
• 2004.08a
• /
• pp.587-594
• /
• 2004

21세기는 지식 정보화 시대라고 말하며 정보 통신혁명은 모든 매체에서 인터넷을 연결시키면서 우리의 생활 및 사고에 대한 패러다임의 변화를 가져 왔다고 할 수 있다. 따라서 본 연구에서는 미래사회를 대비해야 할 우리 어린이들에게 정보화의 발전과 주5일제 수업으로 더욱 활발해진 개별학습 기회가 혹시나 의미 없는 시간소비를 통해 사이버 폭력 및 사이버범죄 등 정보화(인터넷)의 역기능에 노출 될 위험성이 있다고 볼 수 있다. 이에 정보통신 윤리교육을 강화하여 인터넷의 역기능을 차단하고 창의적이고 탐구적인 학습활동에 흥미를 가지고 적극적으로 참여 할 수 있도록 다음과 같이 운영한다. 첫째, 학생 중심의 자치적인 온라인 커뮤니티 활동을 통해 학생중심의 게시판을 개발 적용한 후 게시판별 분석자료를 통해 학생 이해 및 소질과 적성을 발굴 지도한다. 둘째, 분석자료 내용을 누가 기록하고 그 내용을 가공, 적용하여 또래집단의 원활한 교우관계 조성과 성장발달을 도모하고 여가시간을 효율적으로 활용하는 능력을 길러 궁극적으로 자아실현과 새로운 가치창조의 기호가 되도록 지도하는데 연구의 목적을 두고자 한다.

• Asia pacific journal of information systems
• /
• v.5 no.1
• /
• pp.112-128
• /
• 1995

The information system control includes organizational structure, control mechanism, and management tools which contribute to accomplish the goals of information system: asset safeguarding, data integrity, effectiveness, and efficiency. Information system audit is the process to evaluate whether the information system accomplishs the goals. Information system auditor examine the reliability of information system control and suggest recommendations to improve the information system control. Both information system control and information system audit activities contribute to prevent and detect the computer crime for the organization. This paper proposes a causal model of information system control/audit and the perceived risk of computer crime, and tests the model using a survey on 38 financial institutions in Korea. Statistical results show that information system control and audit significantly reduce the computer crime risk perceived by the user group. The general control has a stronger impact than the application control. In addition, it turns out that the greater the deviation between the importance and the actual level of information system control is, the higher the perceived risk of computer crime is.

• Proceedings of the Korean Information Science Society Conference
• /
• 2011.06d
• /
• pp.58-60
• /
• 2011

최근 택시를 이용한 범죄가 늘어남에 따라 대부분의 여성 탑승자들은 긴장과 불안감을 느끼면서 택시를 이용한다. 탑승자들의 불안감은 택시 영업을 하고 있는 사람에게도 불쾌한 일이며, 이로 인해 탑승자와 택시 영업을 하고 있는 사람 간에 마찰이 생긴다. 이러한 문제점을 해결하기 위해 택시 기사와 택시에 대한 정보, 현재 위치에 대한 정보, 알람 기능을 이용한 방법을 제안한다. 이 방법으로 인해 탑승자의 안전은 회사로부터 실시간 보호받고 있으므로 탑승자는 이전보다 택시를 이용하는 것에 대해 안전함을 느끼면서 택시를 이용할 수 있다.

• Korean System Dynamics Review
• /
• v.16 no.3
• /
• pp.31-48
• /
• 2015

The purpose of this paper is to simulate drinking population, an alcoholic abuser and an alcoholic through therapy programs and system dynamic model. Then we try to research relationship between an alcoholic crime and related therapy programs. The results of the model simulation were consistently increased drinking population and 3 types drinkers until 2020 years. Specially the growth rate of drinking abusers will be passing that of a drinking population. Second, It showed clearly the decreasing effects of drinking crime on therapy programs(clinical treatment, preventive displine and counseling treatment). Finally, it will be positvely necessary the long-term and various alcoholic therapy program for reducing the ratio of drinking abusers and an alcoholic. In the second place, government and medical centers must be established a concrete information systems for collecting alcoholic datum.