• Title/Summary/Keyword: Multi-Criteria

Search Result 1,081, Processing Time 0.03 seconds

The Case Study of Foreign Scenery Inventory Map and the Applicability of Domestic - focused on macro inventory map - (자연경관 경관도의 국외사례 및 국내 적용가능성 연구 - 거시적 경관관리도를 중심으로 -)

  • Joo, Shin-Ha;Lee, Song-Hee
    • Journal of Korean Society of Rural Planning
    • /
    • v.17 no.3
    • /
    • pp.103-111
    • /
    • 2011
  • The purpose of this study is to review foreign scenic inventory map for the systematic management of natural scenic resources. Several foreign cases were surveyed and analyzed to apply the scenery inventory map in domestic, such as Visual Resource Management(VRM) from United States Bureau of Land Management, Scenery Management System(SMS) from USDA Forest Service and Visual Landscape Inventory(VLI) from British Columbia Ministry of Forest's, that were already established scenery inventory maps. The results are as follows. First, the characteristic of Korean landscape is quite a different from those of north american's, which is much smaller and more complex in topography and land use. So, it would be difficult to apply foreign system directly and we need more researches to our own system. The multi-stepped landscape unit system is highly recommended. Second, scenic quality could be estimated by the pre-built database, such as land forms, vegetation, hydrology and land uses. Historical and cultural attributes should be complemented. Third, existing scenic integrity could be grasped by scenic damage, landscape alteration caused by human activities and land exfoliation. Also, subjective evaluation method should be supplemented by objective criteria through further detailed studies. Finally, about landscape view conditions, landscape control points should be surveyed and established in advance, and viewing distance, viewing frequency, amount of observers and public interests should be considered.

Analysis on Characteristics of Agricultural Heritage in GIAHS sites (세계중요농업유산(GIAHS) 등재지역 농업유산의 특성 분석)

  • Jeong, Myeong-Cheol;Mun, Hyo-Yun;Yoon, Soon-Duck;Kim, Sang-Bum
    • Journal of Korean Society of Rural Planning
    • /
    • v.22 no.4
    • /
    • pp.171-182
    • /
    • 2016
  • Since FAO introduced the Globally Important Agricultural Heritage Systems(GIAHS) in 2002, 36 sites of 15 countries so far have been listed on GIAHS. This study aims to find the important agricultural heritages of Korea and to prepare the methods for them to be selected as GIAHS. We have analyzed the proposals of the 36 GIAHS listed in order to study the characteristics of their components of the agricultural heritage which worked for being selected. To analyze the components of the agricultural heritage first, agricultural heritage was classified into 13 types and 42 components in light of GIAHS criteria. Then central themes were set to analyze the relevant contents in the proposals. They were, the type of GIAHS Site, significant agricultural landscape, the agriculture-forestry-fisheries-livestock linkage systems, the multi-layered, inter-cropping, circulation cultivation systems, the soil and water management systems, the conservation of agrobiological diversity and genetic resources, the history of the agricultural heritage, the succession of traditional farming techniques, the cultural diversity and so on. Most GIAHS are located in mountains, grasslands, rivers and coasts, desert than in plains, through which GIAHS assure us that it is the heritage of human challenge to overcome the harsh geographic environment and maintain a livelihood. In these sites the traditional farming techniques are carried on, such as mountain clearings, terraced rice paddies, and burn fields, and the unique irrigation systems and agricultural landscapes are well maintained, and the eco-friendly traditional farming techniques utilizing abundant forest resources and agriculture are well handed down. The origin or home of crop growing, a variety of genetic crop storage, the world's largest crop producer and preserving cultural diversity are also important factors for the selection.

The Recent Trends of Clinical Research on General Anxiety Disorder in Chinese Herbal Medicine (범불안장애의 중의학 약물 임상시험 최신 동향)

  • No, Dong-Jin;Lee, Sang-Ryong;Jung, In-Chul
    • Journal of Oriental Neuropsychiatry
    • /
    • v.20 no.4
    • /
    • pp.79-89
    • /
    • 2009
  • Objectives : To address suitable method for designing clinical trial intervening Traditional Korean Herbal Medicine on General anxiety disorder through the recent clinical research in Chinese Herbal Medicine. Methods : Randomized, controlled trials(RCTs) of treatment of general anxiety disorder intervening herbal medicine were searched through CNKI databases. We examined several item of studies and evaluated using Jadad scale. We searched articles in CNKI with the key word "General anxiety disorder or 廣範性焦慮症", among them we selected the clinical trial studies related with herbal medicine except for case reports, studies of acupuncture therapy or west medicines. Results : 11 RCT studies of herbal medicine met inclusion criteria. The Studies used CCMD-3, HAMA as inclusion tool and mainly HAMA as a evaluation tool. Studies were progressed for 2-8 weeks, mostly used various positive control. Experiment medicine were mainly 理氣劑, 安神劑. In most studies, experiment group made similar or higher efficacy in comparison with control group. Mean Jadad score of studies was $1.3{\pm}0.67$, and only one study was double-blinded among 11 studies. Conclusions : RCT studies on general anxiety disorder of chinese herbal medicine tend to focus on investigating effect of herbal medicine through setting positive control group with CCMD-3 and HAMA. But, most studies had low quality of trial, for lack of pattern identification, evaluation and inclusion tool of chinese medicine. Clinical trials of general anxiety disorder should provide good quality by randomization, double-blinding, and multi-site trial.

  • PDF

Weights of Attributes in Creating Transit Malls (대중교통전용지구의 조성목적에 따른 계획요소별 중요도 평가)

  • Park, Jong-Il;Chang, Justin S.
    • Journal of Korean Society of Transportation
    • /
    • v.32 no.2
    • /
    • pp.130-138
    • /
    • 2014
  • This paper assessed the weights of attributes in creating transit malls. The aim of the creation was classified as travel demand management and urban revitalization. The attributes were grouped into four aspects, or 4As: attraction, amenity, accessibility, and activity. These dimensions represented land-use, urban design, transport, and socio-cultural characteristics, respectively. The analytical hierarchy process was applied to explore the weights. Accessibility(52.7%), attraction(25.6%), amenity(13.7%), and activity(8.0%) were the order of magnitude in weights for the purpose of travel demand management, while attraction(36.1%), accessibility(30.6%), amenity(17.7%), and activity(15.6%) were that of urban revitalization. The multi criteria analysis also showed different size of weights in the sub planning attributes. These results indicate that the aimin implementingtransit malls should be differentiated and highlight that the combined land-use and transport plan is essential for the successful development. Car accessibility and socio-cultural characteristics are also understood as the important factors.

AHP와 하이브리드 필터링을 이용한 개인화된 추천 시스템 설계 및 구현

  • Kim, Su-Yeon;Lee, Sang Hoon;Hwang, Hyun-Seok
    • Journal of Korea Society of Industrial Information Systems
    • /
    • v.17 no.7
    • /
    • pp.111-118
    • /
    • 2012
  • Recently, most of firms have continuously released new products satisfying various needs of customers in order to increase market share. As a lot of products with various functionalities, prices and designs are released in the market, users have difficulties in choosing an appropriate product, especially for information technology driven devices. In case of digital cameras, inexperienced users spend a lot of time and efforts to find proper model for them. In this study, therefore, we design and implement a personalized recommendation system using analytic hierarchy process, one of the multi-criteria decision making techniques, and hybrid filtering combining content-based filtering and collaborative filtering to recommend a suitable product for inexperienced users of information technology devices.

Evaluating location suitability of Park-and-Ride facilities using GIS (GIS를 이용한 환승시설 입지 적합도 평가)

  • Kim, Kam-Young
    • Journal of the Korean association of regional geographers
    • /
    • v.14 no.6
    • /
    • pp.718-735
    • /
    • 2008
  • Park-and- Rides are intermodal transfer facilities providing a staging location for travellers to transfer between transportation modes. They are an alternative to alleviate transportation problems such as traffic congestion and air pollution in metropolitan areas. Siting Park-and-Ride facilities belongs to a kind of multi-criteria spatial decision making problems being associated with a combination of various location factors. The purpose of this paper is to provide a method and procedure to evaluate the location suitability of Park-and-Ride facilities using GIS(Geographic Information Systems). Using GIS-based suitability analysis, land value, landuse, road accessibility, public transportation accessibility, possibility to intercept automobile trips, distance to activity center and competition with existing facilities were evaluated as location factors. The suitabilities of individual factors were combined to produce a composite map with a specific weight scheme. Then a given number of sites with high suitability score were selected as potential facility locations and their demand were evaluated based on a commutershed with parabolic shape. The suggested method and procedure will provide useful information in determining Park-and-Ride sites and designing their structure.

  • PDF

Environmental Impact Assessments along with Construction of Residential and Commercial Complex (주거단지 건설이 하천에 미치는 생태영향평가)

  • An, Kwang-Guk;Han, Jeong-Ho;Lee, Jae Hoon
    • Journal of Environmental Impact Assessment
    • /
    • v.21 no.5
    • /
    • pp.631-648
    • /
    • 2012
  • The integrative ecological approaches of chemical assessments, physical habitat modelling, and multi-metric biological health modelling were applied to Gwanpyeong Stream within Gap-Stream watersheds to evaluate environmental impacts on the constructions of residential and commercial complex. For the analysis, the surveys conducted from 45 sites of reference streams within the Gap-Stream watershed and 3 regular sites during 2009 - 2010. Physical habitat health, based on the habitat model of Qualitative Habitat Evaluation Index(QHEI) declined from the headwaters(good - fair condition) to the downstream(poor condition). Chemical water quality, based turbidity and electric conductivity(EC), was degraded toward to the downstream, and especially showed abrupt increases, compared to the values of control streams(CS). Also, concentrations of chlorophyll-a in the downstreams were greater compared to the control stream(CS), indicating an eutrophication. Biological health conditions, based on the Index of Biological Integrity(IBI) using fish assemblages, averaged 19.3 which is judged as a fair condition by the biological criteria of the Ministry of Environment, Korea. The comparisons of model metric values in sensitive species and riffle-benthic species on the Maximum Species Richness Line(MSRL) of 45 reference streams indicated a massive disturbances in all sampling locations. Also, tolerance guild and trophic guild analyses suggest that dominances of tolerant species and omnivores were evident, indicating a biological degradation by habitat disturbances and organic matter pollutions. There was no distinct longitudinal variations of IBI model values from the headwater to the downstream in spite of slight chemical and habitat health gradients among the sampling sites. Overall, integrative ecological health(IEH) scores, based on the chemical, physical, and biological parameters, were low compared to the 45 reference streams due to physical and chemical disturbances of massive constructions of the residential and commercial complex. This stream, thus showed a tendency of typical urban streams which are disturbed in the chemical water quality, habitat structures, and biological integrity. Effective stream management plans and restoration strategies are required in this urban stream for improving integrative stream health.

A Study on Quantitative Risk Presentation of LNG Station (LNG충전시설의 위험도 표현에 관한 연구)

  • Ko, Jae-Wook;Yoo, Jin-Hwan;Kim, Bum-Su;Lee, Heon-Seok;Kim, Min-Seop
    • Journal of the Korean Institute of Gas
    • /
    • v.13 no.1
    • /
    • pp.61-67
    • /
    • 2009
  • There are lots of energy facilities using gas(storage facility, compressed gas pipe, station, tank lorry) on the domestic. These major gas facilities cause major accidents associated with fire, explosion, toxic and etc. With the increased interest in reducing air pollution, supply of natural gas for gas vehicles is increasing. Thus, the number of establishments of LNG (Liquefied Natural Gas) and CNG(Compressed Natural Gas) stations is increasing as well. However, due to major gas accidents such as the fire and explosion accident of a Buchen LPG (Liquefied Petroleum Gas) station, it is difficult to establish a new station. In this research, we present quantitative risk assessment for LCNG;LNG multi-station and compare it result against individual risk criteria of HSE.

  • PDF

An Efficient MapReduce-based Skyline Query Processing Method with Two-level Grid Blocks (2-계층 그리드 블록을 이용한 효과적인 맵리듀스 기반 스카이라인 질의 처리 기법)

  • Ryu, Hyeongcheol;Jung, Sungwon
    • Journal of KIISE
    • /
    • v.44 no.6
    • /
    • pp.613-620
    • /
    • 2017
  • Skyline queries are used extensively to solve various problems, such as in decision-making, because they find data that meet a variety of user criteria. Recent research has focused on skyline queries by using the MapReduce framework for large database processing, mainly in terms of applying existing index structures to MapReduce. In a skyline, data closer to the origin dominate more area. However, the existing index structure does not reflect such characteristics of the skyline. In this paper, we propose a grid-block structure that groups grid cells to match the characteristics of a skyline, and a two-level grid-block structure that can be used even when there are no data close to the origin. We also propose an efficient skyline-query algorithm that uses the two-level grid-block structure.

Design of Multimensional Contents Retrieval Browser for IPTV (IPTV를 위한 다차원 콘텐츠 검색 브라우저의 설계)

  • Choi, Yoo-Joo;Oh, Jung-Min;Byeon, Jae-Hee;Moon, Nam-Mee
    • The Journal of the Korea Contents Association
    • /
    • v.10 no.8
    • /
    • pp.138-146
    • /
    • 2010
  • Interest in IPTV content increases, the number of users quickly and easily find the need for an interface that can be consumed as well as the individual's taste is reflected in the menu structure is an emerging demand. Existing IPTV content depending on the browser menu, use the intuitive search criteria are presented differently, this is difficult and not take into account the characteristics of the user by providing an interface for users to interact with the content was limited. In this paper propose According to user requirements in IPTV, regardless of the type of content applicable to the multidimensional contents retrieval browser. This applies equally to the menu category and multidimensional approach based on simple, intuitive and can be used to visualize the content by users without detailed information about the multi-dimensional search to only the desired content will be available for consumption.