• The Journal of Korean Institute of Next Generation Computing
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• v.13 no.2
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• pp.49-61
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• 2017

Transactional Memory (TM) has greatly changed the parallel programming paradigm for transaction processing and is classified into STM, HTM, HyTM according to hardware or software frameworks. However, the existing studies have a problem that they provide static retry policy for all workloads. To solve the problems, we propose an hybrid transactional memory scheme using sampling-based adaptive retry policy in multi-core environment. First, the proposed scheme determines whether to use STM or HTM according to the characteristic of a transaction. Otherwise, it executes HTM and STM concurrently by using a bloom filter. Second, the proposed scheme provides adaptive retry policy for HTM according to the characteristic of transactions in each workload. Finally, through the experimental performance evaluation using STAMP, the proposed scheme shows 10~20% better performance than the existing schemes.

• Science & Technology Policy
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• v.6 no.3 s.84
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• pp.4-6
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• 1996

• Korean Public Administration Review
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• v.48 no.3
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• pp.413-436
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• 2014

본 논문은 청주·청원과 전주·완주의 행정구역 통합과정을 비교·분석하였다. 2009년 두 지역의 통합은 모두 무산되었다. 그러나 2010년부터 이루어진 재시도에서 청주·청원은 통합에 성공한 반면 전주·완주의 통합은 또다시 무산되었다. 행정구역 통합을 설명하는 기존의 연구들은 구조 및 환경 등 외생적 요인에 초점을 두고 있어 역사적 배경, 지리적 조건, 통합의 시기 등에서 여러 유사점이 있는 두 지역의 비교연구에는 적합하지 않다. 본 논문은 특히 전주·완주와 청주·청원의 행정구역 통합 결과의 차이가 나타난 이유로 정책중개자의 역할에 초점을 맞추었다. 구체적인 통합 결과의 차이를 살펴보기 위해 통합절차를 5단계로 나누어 그 충족 정도를 분석하였다. 정책중개자는 그 정책선호와 지위를 기준으로 (1) 민-관 선호 정책중개자, (2) 관단독 선호 정책중개자, (3) 민단독 선호 정책중개자, (4) 선호 없음의 네 가지 역할로 구분하였다. 본 논문의 분석 결과에 따르면, 제1기(2009년~2010년)에는 두 지역 모두 민단독 선호 정책중개자가 나타났다. 그 결과 전주·완주에서는 여론조사에서, 청주·청원에서는 의회의결단계에서 그 통합시도가 무산되었다. 제2기(2010년~2013년)에는 전주·완주에서는 정책중개자 유형이 관단독 선호 정책중개자 유형으로 바뀌어 주민투표단계까지 도달하는 데 그쳤으나, 청주·청원에서는 민-관 선호 정책중개자로 바뀌어 최종 통합시 설치법 단계까지 도달해 통합이 완성되었다.

• Review of KIISC
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• v.28 no.6
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• pp.39-44
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• 2018

우리나라 방위산업은 고등훈련기, 잠수함 등을 수출할 정도로 발전했으며, 방산 기술력은 선진국 대비 80% 수준으로 평가받고 있다. 이렇게 방위산업이 발전함에 따라 국가 안보상 중요한 정보를 유출하려는 시도도 증가하고 있다. 이러한 상황에서 정부는 방산업체에서 보유한 중요 정보를 보호하기 위한 정책들을 시행하고 있으나 방산업체별 다양한 특성을 고려하지 않은 채 획일화된 정책을 추진함으로써 투자 대비 효과성이 떨어지는 것이 현실이다. 따라서, 본 논문에서는 보안에 대한 투자 대비 효과성을 높이기 위해 방산업체 특성을 고려한 차등화 된 보안정책 개발에 활용할 수 있도록 핵심 평가 요소를 도출하고 요소별 가중치를 산출하는데 목적이 있다.

• The Journal of the Korea Contents Association
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• v.14 no.7
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• pp.386-394
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• 2014

Entertainment Industry, with high productivity of added value, is noticed as a major industry leading global economy. Thus the government has been constantly attempting to devise various plans for developing entertainment industry, but the plans are mostly come out according to currently faced issues rather than considering the whole industry interior interaction. We are mainly objective to find a ground for estimating the current entertainment industry status. For this, we borrowed the concept of 'maturity' from various capacity maturity estimation tools. We also analyzed Korean film industry as a representative entertainment industry case to find what and how government intervention has affected on the industry.

• 한국노년학
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• v.29 no.4
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• pp.1427-1444
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• 2009

The purpose of this study was to examine the prevalence of the suicide ideation, plan and attempt and to examine factors affecting the suicide attempt of the elderly. For these purposes, 1,110 elderly in Chonbuk province were interviewed using structured questionaire. Logistic regression analyses were used to test the association among factors. Major finding of this study are as follow : First, the prevalence of the suicide ideation, plan and attempt was 20.2%, 5.7%, 3.6%. Second, factors for suicide attempt were male sex, the living alone aged, loss of role as a worker, emotional abuse and neglect from family. On the basis of these results, implications for policy and practice are suggested for prevention the suicide of the elderly.

• KIISE Transactions on Computing Practices
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• v.23 no.8
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• pp.466-472
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• 2017

Hardware Transactional Memory (HTM) has greatly changed the parallel programming paradigm for transaction processing. Since Intel has recently proposed Transactional Synchronization Extension (TSX), a number of studies based on HTM have been conducted. However, the existing studies support conflict prediction for a single cause of the transaction processing and provide a standardized TSX environment for all workloads. To solve the problems, we propose an efficient hardware transactional memory scheme for processing transactions in multi-core in-memory environment. First, the proposed scheme determines whether to use Software Transactional Memory (STM) or the serial execution as a fallback path of HTM by using a prediction matrix to collect the information of previously executed transactions. Second, the proposed scheme performs efficient transaction processing according to the characteristic of a given workload by providing a retry policy based on machine learning algorithms. Finally, through the experimental performance evaluation using Stanford transactional applications for multi-processing (STAMP), the proposed scheme shows 10~20% better performance than the existing schemes.

• Information and Communications Magazine
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• v.29 no.11
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• pp.3-10
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• 2012

정보통신기술의 급속한 발전으로 인해 인터넷은 사회 전분야를 변화시키고 있으며 다양하고 폭넓은 이용 행태에 따라 지금 이 순간에도 엄청난 데이터를 생산해 내고 있다. 대부분의 인터넷 데이터는 제한적인 활용 이외 단순 생성과 소멸을 반복해 왔으나 최근 들어 빅데이터(Big Data)라는 핵심 키워드의 부상으로 인터넷 데이터에 대한 관심이 고조되고 있다. 과거에도 데이터 마이닝(Data Mining), 비즈니스 인텔리전스(Business Intelligence), 라이프 로그(Life Log) 등을 통해 데이터 기반의 부가가치를 창출하려는 노력은 시도되어 왔다. 그렇다면 왜 다시 빅데이터라는 이름으로 재부상 하고 있는 것일까? 이는 정보통신기술의 진화와 맞물려 새롭게 부상하고 있는 인터넷 글로벌 기업들이 지속적으로 생성되는 다양한 데이터들을 확보하고 그 속에서 숨겨진 가치를 찾고 인사이트(Insight)를 도출하려는 시도를 통해 데이터 보유와 활용이 새로운 경쟁력이 될 수 있음을 입증하고 있기 때문이다. 이러한 시도들은 빅데이터를 다양한 분야에서 중요한 이슈로 자리매김하게 하고 있다. 이러한 상황에서 과연 우리는 빅데이터 시대를 어떻게 리드하고 무엇에 집중하여야 할 것인가? 본 연구는 현재 뜨거운 감자로 부상한 빅데이터를 정의하고 빅데이터 시장분석, 사례분석, 정책분석을 통해 시사점을 도출하여 향후 다가올 빅데이터 시대의 국가경쟁력 확보를 위한 빅데이터 이니셔티브(Initiative)의 필요성과 중점 방향 등을 제언하고자 한다.

• The Korean Society of Law and Medicine
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• v.20 no.2
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• pp.261-285
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• 2019

The essential policy of suicide prevention is to continuously manage and treat suicide attempted people through data base related to suicide retry rate and follow-up study report. In Korea, only few people are allowed to follow-up by the Personal Information Protection Act. As a result, the research participation rate and the service participation rate are rather low, so that the research participants is limited to a part of the suicide attempted people. Therefore, the policy proposals to be improved in the Ministry of Health and Welfare Act were examined comparatively in order to increase the practical utilization of the suicide prevention about Article 14 and Article 20 of the Suicide Prevention Act. As a criterion for policy improvement, measures for non-discrimination of information to be considered in terms of technical and ethical dimensions and non-profit research and medical information for medical purposes were suggested. In addition to the severity of the suicide, the suicide risk was assessed and the criteria for the objective assessment of the follow-up observation were considered in consideration of the severity of the suicide.

• Korean Journal of Heritage: History & Science
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• v.48 no.3
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• pp.154-165
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• 2015

Common issues in research and policy on cultural heritage can be extracted among Eurasian countries although countries in the region show different colors of policies and studies. Among them one thing peculiar to Central Asian countries is that in general they do not have well delineated laws and regulations on the protection of cultural heritage. It may be because they had no enough time and experience to legislate and implement relevant laws and regulations ever since they got independence. Research on cultural heritage in Central Asian countries is often made in cooperation with foreign institutions. As shown in archaeological excavation projects in Central Asian countries, cooperative projects exceed noncooperative ones in terms of size and longevity. UNESCO, through its projects on the Serial and Transboundary World Heritage Nomination of the Silk Roads in Central Asia, also supports countries in Central Asia and others along the Silk Road in order to facilitate inclusion of their cultural heritages in the Tentative List of the World Heritage. With regard to activities on the protection of cultural heritage, while respective countries in Central Asia have made good efforts, they could not produce effective outcomes due to short of budget and specialized manpower. They have rich resources of cultural and documentary heritage but their registered heritages on the UNESCO's World Heritage List and Memory of the World are under-represented because of short of technology and experience among other things. A new trend in cultural heritage studies that combined cultural heritage with tourism has merged in recent years. While some critics have raised some negative questions, this new fashion became popular and will continue with the support of governments of Silk Road countries. In conclusion, Korean institutions are further encouraged to organize cooperative networks for research and policy with respective Eurasian countries.