• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권5호
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• pp.1666-1689
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• 2021

The red line of Permanent Basic Farmland is the most important part in the "three-line" demarcation of China's national territorial development plan. The scientific and reasonable delineation of the red line is a major strategic measure being taken by China to improve its ability to safeguard the practical interests of farmers and guarantee national food security. The delineation of Permanent Basic Farmland zoning (DPBFZ) is essentially a multi-objective optimization problem. However, the traditional method of demarcation does not take into account the synergistic development goals of conservation of cultivated land utilization, ecological conservation, or urban expansion. Therefore, this research introduces the idea of artificial immune optimization and proposes a multi-objective model of DPBFZ red line delineation based on a clone selection algorithm. This research proposes an objective functional system consisting of these three sub-objectives: optimal quality of cropland, spatially concentrated distribution, and stability of cropland. It also takes into consideration constraints such as the red line of ecological protection, topography, and space for major development projects. The mathematical formal expressions for the objectives and constraints are given in the paper, and a multi-objective optimal decision model with multiple constraints for the DPBFZ problem is constructed based on the clone selection algorithm. An antibody coding scheme was designed according to the spatial pattern of DPBFZ zoning. In addition, the antibody-antigen affinity function, the clone mechanism, and mutation strategy were constructed and improved to solve the DPBFZ problem with a spatial optimization feature. Finally, Tongxu County in Henan province was selected as the study area, and a controlled experiment was set up according to different target preferences. The results show that the model proposed in this paper is operational in the work of delineating DPBFZ. It not only avoids the adverse effects of subjective factors in the delineation process but also provides multiple scenarios DPBFZ layouts for decision makers by adjusting the weighting of the objective function.

• Agribusiness and Information Management
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• 제9권1호
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• pp.7-17
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• 2017

Agricultural water management has gained enormous attention in the developing world to alleviate poverty, reduce hunger and conserve ecosystems in small-scale production systems of resource-poor farmers. The story of food security in the $21^{st}$ century in India is likely t o be closely linked to the story of water security. Today, the water resource is under severe threat. The past experiences in India in general and in Andhra Pradesh in particular, indicated inappropriate management of irrigation has led to severe problems like excessive water depletion, reduction in water quality, water logging, salinization, marked reduction in the annual discharge of some of the rivers, lowering of ground water tables due to pumping at unsustainable rates, intrusion of salt water in some coastal areas etc. Considering the importance of irrigation water resource efficiency, Krishna Western Delta (KWD) of Andhra Pradesh was purposively selected for this in depth study, as the farming community in this area are severely affected due to severe soil salinity and water logging problems and hence, adoption of different water saving crop production technologies deserve special mention. It is quite disappointing that, canals, tube wells and filter points and other wells could not contribute much to the irrigated area in KWD. Due to less contribution from these sources, the net area irrigated also showed declining growth at a rate of -6.15 per cent. Regarding paddy production, both SRI and semi-dry cultivation technologies involves less irrigation cost (Rs. 2475.21/ha and Rs. 3248.15/ha respectively) when compared to transplanted technology (Rs. 4321.58/ha). The share of irrigation cost in Total Operational Cost (TOC) was highest for transplanted technology of paddy (11.06%) followed by semi-dry technology (10.85%) and SRI technology (6.21%). The increased yield and declined cost of cultivation of paddy in SRI and semi-dry production technologies respectively were mainly responsible for the low cost of production of paddy in SRI (Rs. 495.22/qtl) and semi-dry (Rs. 532.81/qtl) technologies over transplanted technology (Rs. 574.93/qtl). This clearly indicates that, by less water usage, paddy returns can be boosted by adopting SRI and semi-dry production technologies. Both the system-level and field-level interventions should be addressed to solve the issues/problems of water management. The enabling environment, institutional roles and functions and management instruments are posing favourable picture for executing the water management interventions in the State of Andhra Pradesh in general and in KWD in particular. This facilitates the farming community to harvest good crop per unit of water resource used in the production programme. To achieve better results, the Farmers' Organizations, Water Users Associations, Department of Irrigation etc., will have to aim at improving productivity per unit of water drop used and this must be supported through system-wide enhancement of water delivery systems and decision support tools to assist farmers in optimizing the allocation of limited water among crops, selection of crops based on farming situations, and adoption of appropriate alternative crops in drought years.

• 한국인터넷방송통신학회논문지
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• 제18권1호
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• pp.185-194
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• 2018

본 연구는 블록체인 기반 서비스의 확산을 위한 방안 연구로서 블록체인 기술에 대한 한계요인과 이를 개선하는 방안에 대해 전문가의 의견을 수렴하는 델파이 기법으로 연구하였다. 한계요인과 개선방안을 기술, 서비스, 법 제도 측면으로 분류하였다. 첫째, 기술측면에서 기술 관련 표준화 부재, 통합성 미비, 확장성 미비, 취소, 정정 정책 부재, 거래 검증비용 과다발생, 보안미비를 한계요인으로 제시했다. 이를 개선하기 위해 각 관련 기관이 협력하여 표준화 확보, 시스템의 통합성 확보 및 확장성 확보, 각 적용되는 데이터에 대한 취소, 정정 정책 수립, 검증비용 효율화와 보안 대비 방안으로 모색하여야 한다. 둘째, 서비스 측면에서 한계요인은 초기단계로 활용성 미비, 보안위협 대응 미비, 전문 인력 부족을 제시하였다. 이에 대한 개선방안으로 다양한 서비스에 적용할 수 있는 지속적인 활용방안에 대한 연구가 이루어져야 하며 서비스에 대한 철저한 보안대응 방안을 준비하고 전문 인력 양성을 통해 시장에서 필요로 하는 인재를 확보할 수 있어야 한다. 셋째, 법제도 측면은 법적대응 미비, 규제의 불확실성 및 관련 규정미비의 한계점이 있다. 서비스 활성화를 위한 가장 중요한 영역인 법 제도는 정부의 관련 부처에서 법적대응 안 마련, 규제의 명확성 및 대응 방안 수립이 필수적으로 동반되어야 한다. 본 연구는 블록체인 기술 관련 연구에 도움이 될 것으로 기대된다.

• 융합정보논문지
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• 제8권3호
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• pp.99-105
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• 2018

이 연구는 인터넷전문은행에 대한 신뢰 주체자인 금융소비자를 남녀 그룹으로 분류하여 소비자 성별에 따라 신뢰 결정요인에 차이가 나는지를 자세히 살펴보는 데 목적이 있다. 특히, 남녀 금융소비자 간 신뢰 결정요인의 차이가 어느 정도인지 그리고 어떤 경로에서 차이가 벌어지는지를 분석하고자 하였다. 실증 분석은 남녀 그룹 간 잠재평균 비교와 다집단 경로 분석을 통해 잠재변수 간 경로계수 차이의 유의미성을 찾아보는 방법으로 실시하였다. 그 결과, 인터넷전문은행의 신뢰 결정요인 중 금융비용의 합리성과 금융보안 요인에서 남녀 간 차이가 발생함을 보였다. 아울러 남녀 소비자 모두 신뢰 형성이 추후 관계몰입으로 강하게 연결됨도 확인되었다. 그리고 이러한 연구 결과는 앞으로 인터넷전문은행의 소비자 신뢰 구축이 무엇보다 긴요함을 시사한다.

• Asian Journal of Innovation and Policy
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• 제10권1호
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• pp.108-131
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• 2021

The increase of international trade across countries and borders results in increased risks associated with the inflow of new pests and diseases. These risks are likely to be increased more rapidly due to climate change. Some countries implement strict regulations on imports to prevent these risks and protect biosecurity, food safety, and public health. However, the problems arise when the diseases and pests are found in a country where their economic structure largely depends on agricultural exports and cause ripple effects on other industries and ecosystems. Therefore, establishing an effective quarantine system is essential to protect and recover from the damage caused by non-native diseases and pests. This study's objectives are 1) analyzing the agricultural policies relate to the quarantine system on diseases and pests in Korea, 2) evaluating the Korea plant quarantine system's value, and 3) simulating plant quarantine policy strategies. We estimated the Korean quarantine system's benefits on diseases and pests to reach these objectives. The benefits are measured with a willingness to pay from respondents surveyed by the contingent valuation method (CVM). The CVM approach directly asks people how much they would willingly pay for food security. Finally, the Korean quarantine system's values are simulated with several policy scenarios and different scales of infection at the regional level. The results of this study can deliver policy implications on the quarantine system innovation in developing countries including Asia.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2020년도 학술발표회
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• pp.168-168
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• 2020

This study is to evaluate the drought-related bigdata characteristics published from South Korean by developing crawler. The 5 years (2013 ~ 2017) drought-related posted articles were collected from Korean internet search engine 'NAVER' which contains 13 main and 81 local daily newspapers. During the 5 years period, total 40,219 news articles including 'drought' word were found using crawler. To filter the homonyms liken drought to soccer goal drought in sports, money drought economics, and policy drought in politics often used in South Korea, the quality control was processed and 47.8 % articles were filtered. After, the 20,999 (52.2 %) drought news articles of this study were classified into four categories of water deficit (WD), water security and support (WSS), economic damage and impact (EDI), and environmental and sanitation impact (ESI) with 27, 15, 13, and 18 drought-related keywords in each category. The WD, WSS, EDI, and ESI occupied 41.4 %, 34.5 %, 14.8 %, and 9.3 % respectively. The drought articles were mostly posted in June 2015 and June 2017 with 22.7 % (15,097) and 15.9 % (10,619) respectively. The drought news articles were spatiotemporally compared with SPI (Standardized Precipitation Index) and RDI (Reservoir Drought Index) were calculated. They were classified into administration boundaries of 8 main cities and 9 provinces in South Korea because the drought response works based on local government unit. The space-time clustering between news articles (WD, WSS, EDI, and ESI) and indices (SPI and RDI) were tried how much they have correlation each other. The spatiotemporal clusters detection was applied using SaTScan software (Kulldorff, 2015). The retrospective and prospective cluster analyses were conducted for past and present time to understand how much they are intensive in clusters. The news articles of WD, WSS and EDI had strong clusters in provinces, and ESI in cities.

• 디지털융복합연구
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• 제17권8호
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• pp.123-130
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• 2019

본격적인 사물인터넷(IoT) 시대의 도래는 다양한 형태의 정보를 사물인터넷 기기를 통해 수집하게 되고, 수집된 방대한 정보는 분석과정에 의해 새로운 정보로 탄생한다. 이렇게 생성된 정보를 효과적으로 저장하기 위해서는 유연성과 확장성이 뛰어난 클라우드 컴퓨팅 시스템이 유리하다. 따라서 본 연구에서는 효과적인 클라이언트 시스템 수용을 위한 주요 결정요인을 동기요인(경제성, 효율성 등)과 저해요인(전환비용, 보안문제 등)으로 보고, 저해요인을 중심으로 새로운 시스템 수용결정을 함에 있어서 어떤 세부요인이 주요하게 작용하는지에 대한 순위 파악에 연구목적을 두고 있다. 주요우선순위 결정에 필요한 요인은 문헌고찰을 통해 확보된 기술 관점의 시스템 수용결정 요인으로 정하고, 도출된 요인을 중심으로 설문지를 작성한 후, 관련 전문가를 대상으로 설문을 실시하고자 한다. 그리고 AHP분석을 통해 의사결정단위 측정을 위한 요소들 간의 쌍대비교를 수행하여 최종 우선순위를 도출하고자 한다. 나아가 본 연구 결과는 기술 수용(활성화)에 따른 의사결정을 함에 있어서 중요한 판단 근거가 될 것이다.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.459-462
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• 2021

The article examines the main problems of land market formation in Ukraine. The article is devoted to the study of problems and prospects of land market introduction after the abolition of the ban on alienation. The advantages and disadvantages of lifting the moratorium on the purchase and sale of agricultural land are highlighted. The experience of such European countries as France, Germany, Latvia, Romania and Poland in regulating the market of agricultural lands is analyzed. The historical stages of market formation, features of state policy in this area are considered. The authors found that in these countries the market for agricultural land is well developed and works effectively, which has positive consequences for the economy of these countries. After analyzing the experience, we identified common elements of an effective mechanism for regulating the land market in European countries, which can be implemented in Ukraine. It is emphasized that after the opening of the land market it is necessary to prevent the concentration of a large number of agricultural lands in the hands of one person or close persons and it is necessary to create an effective supervisory body, whose main functions will be supervising sales prevention of speculation in the land market. Emphasis is placed on the need to improve legislation in the field of land, organizational and informational conditions for land reform. The Law of Ukraine "On Amendments to Certain Legislative Acts of Ukraine Concerning the Circulation of Agricultural Land" was analyzed, the adoption of which put an end to the systematic extension of the moratorium on the sale of agricultural land. The positive aspects of such reservations are noted, such as the gradual introduction of the land market, quantitative restrictions, the lower limit of the value equivalent, which can not be less than the normative monetary value. At the same time, the problem is that the lack of an imperative norm on termination of the lease agreement in case of refusal of the lessee to purchase such land at a price not lower than expert assessment, will negatively affect its price formation and actually make the landlord hostage.

• 경영정보학연구
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• 제20권4호
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• pp.43-57
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• 2018

본 연구는 클라우드에 기반한 ERP 투자 결정에 있어서 네트워크 효과가 어떠한 영향을 미치는지에 초점을 맞추어 분석하였다. 구체적으로 국내 82개 중소기업에서 수집된 설문데이터를 사용하여 정보기술 담당자들이 클라우드에 기반한 ERP 투자 의사결정과 관련된 위험을 관리하기 위한 수단으로써 실물옵션을 채택하고자 하는 의도가 있는지, 그리고 동시에 실물옵션 채택 의도에 네트워크 효과가 어떻게 영향을 미치는지를 실증분석하였다. 선행연구를 바탕으로 연구모형과 4개의 가설을 설정하였다. 실증분석 결과, 클라우드 ERP 관련 기술적 위험은 연기 옵션의 채택에 양의 영향을 주고 도입 기업의 공급자와의 관계적 위험 및 클라우드 ERP 투자 관련 경제적 위험은 연기, 축소 및 포기 옵션의 채택에 모두 양의 영향을 주는 것으로 분석되었다. 반면 보안 및 정보유출에 관련된 안전성 위험은 어떠한 옵션의 채택에도 유의적인 영향을 미치지 않았다. 클라우드 ERP 도입 기업이 많을수록 증가되는 네트워크 효과의 경우 연기, 축소 및 포기 옵션 채택에 유의적인 양의 영향을 미치는 것으로 분석되었다. 본 연구는 국내 중소기업의 클라우드 ERP 투자와 관련하여 정보기술 담당자들은 기술, 관계, 경제적 위험이 있을 경우 그리고 네트워크 효과가 기대될 때 실물옵션을 채택할 의도가 존재한다는 것을 실증적으로 보여주었다.

• 한국컴퓨터정보학회논문지
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• 제22권3호
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• pp.147-153
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• 2017

The main subject of year 2016 Davos forum was "The 4th Industrial Revolution." Recently, interests and investment in drone market, so called industrial revolution in the sky is growing in many countries around the world. Before, drone was used for military purpose such as reconnaissance or attacking but today, it is used in various private sectors such as unmanned delivery service, agriculture, leisure activities, etc. Presently, many major countries in the world are already involved in the 'war without gunfire' to be dominant in this drone industry. Korean government also has announced an extreme relaxation of regulations for growing drone industry by opening a conference with Ministers related to economics. During the conference, business scope of drone which was limited to agriculture, photographing, and observation was expanded to all the fields except for cases hindering national safety and security. In terms of shooting purpose drone its process of receiving approval for flight and shooting is simplified to online registration. What is more, drone delivery service will be allowed in island areas such as Goheung, Yeongwol, etc from first term of year 2017. Finding the way to apply drone in criminal investigation is also speeding up. Recently, Public Safety Policy Research Center in Korean National Police University has inquired for research service and its result will be out around November. Likewise, although more and stronger foundation for supporting drone industry is made but there are still, some opinions saying that we should take a careful approach in consideration to the side effect such as abuse in crime. One may also try terror by placing a dangerous substance. If drone falls, it may hurt any civilians. Moreover, if shopping purpose drone is hacked, it may result in violation of privacy. Compared to America, Europe, and China, we are at the very beginning stage of drone industry and it is necessary to reorganize legal issues to grow this industry. This can be thought from two perspectives; first, the growth of drone industry is blocked by difficult regulations on Aviation Law and Radio Regulation Law. The second issue is the safety and privacy that are required for operating drone. For the advanced technologies to make human life more profitable, more active and proactive actions are required by criminal law side. In preparation to the second mechanical era where man and machines should go together, I hope that responsible preparation is required in all fields including the criminal law.