spatial analysis in gis
The yield gap of global grain production-A spatial analysis
... reaching markets. Ac-cess can therefore not explain the variance in efficiency of Chinesewheat production. Market in uence (market), as a proxy for landrent indicating the investments in machinery, ... these interact with local constraints. The results of our analysis have confirmed that the factors explaining inefficiencies in production widely vary by region. Furthermore, factors explain-ing ... 2010Available online 26 March 2010Keywords:Grain productionYield gapLand managementIntensificationInefficiencyFrontier analysis abstractGlobal grain production has increased dramatically during the...
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Tài liệu Spatial analysis of elderly access to primary care services docx
... correlated. Spatial regressionThe descriptive analysis in Figure 3 is univariate. The aimof the spatial regression analysis is to combine multiplefactors in a model which explains these spatial ... beneficiaries in 2000 CMS Geographic Service Area File, countyCINCREASE Binary indicator of an increase in competition among the MMC plans available, between 1998–2000, from inverse Herfindahl indexCMS ... reside in rural areas. We interact the pro-portion of elderly in poverty with the proportion in ruralareas to include in the model.We also expect that elderly living among elderly in ruralareas...
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Tài liệu Scaling and Uncertainty Analysis in Ecology: Methods and Applications pdf
... extents, coarse-graining transferring information with increasing grain size, and fine-graining transferring information with decreasing grain size. Sometimes, upscaling and downscaling refer specifically ... downscaling, the two steps are disaggregating information and singling out (Figure 2.1). Disaggregating coarse-grained information is to derive the detailed pattern within a spatial domain (fine-graining) ... studies in scaling and uncertainty analysis that are relevant to ecology. The series of case studies included here illustrate how scaling and uncertainty analysis are being conducted in ecology...
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Tài liệu Risk Analysis in Investment Appraisalby doc
... should be incorporated into the test. Uncertainty analysis is the attainment of some understanding of the type and magnitude of uncertainty encompassing the variables to be tested, and using it ... uncertainty should not be included in the probabilistic analysis unless its impact on the project result, within the expected margins of uncertainty, is significant. The reason for including ... scenarios generated in the analysis. Decision criteria By using a discount rate that allows for risk, investment decision criteria normally used in deterministic analysis maintain their validity...
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Tài liệu Building a Spatial Database in PostgreSQL pptx
... Discussion• Spatial data and spatial databases• Adding spatial extensions to PostgreSQL• OpenGIS and standards Spatial RelationshipsContainment: Rivers inside watersheds and land (islands) inside ... election.• Want to predict voting in 2001 by looking at voting in 1996.• Intersect the 2001 district polygon with the voting areas polygons.• Outside will have zero area• Inside will have 100% area• ... size– GiST index / Index extensions– Easy to add custom functionsThe OpenGIS Consortium From the OpenGIS Consortium guide“Much geospatial data is available on the web and in off-line archives,...
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Tài liệu RISK ANALYSIS IN FINANCE AND INSURANCE pdf
... an insurance company and investment portfolios 3.3.1 Mathematical appendix 53.4 Risks in traditional and innovative methods in life insurance3.5 Reinsurance risks 3.6 Extended analysis of insurance ... of optimal investment. In the previous sections we studied investment strategies (portfolios) from thepoint of view of hedging contingent claims. Another criterion for comparing invest-ment ... dollars) and invests the obtained 46.8 dollars in a bankaccount.Note that in both examples the ‘minimal hedging’ price coincides with the ‘risk-neutral’ price and they differ from the intuitive...
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ON CONSISTENCY CHECKING OF SPATIAL RELATIONSHIPS IN CONTENT-BASED IMAGE DATABASE SYSTEMS potx
... point in p(B).• p satisfies the relationship A behind B, stating that A is behind B in thepicture p, iff the z-coordinate of each point in p(A) is greater than the z-coordinate of each point in ... Mechanism in the Spatial Reasoning component will also be invokedto generate the compact/minimal image index at the Image Indexing stage. Ouriconic indexing approach will generate the 2D string representation ... Otherwise, continue (and we know Ginsideis acyclic).Suppose, for example, SRinside={A inside B, B inside C, C inside A}. ThenGTinsidecontains all nine spatial relationships Y inside Z, w...
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“Financial analysis in PetroVietnam Energy Technology Corporation (PVEIC)”
... effective financial analysis. Financial analysis means examining the overall financial situation of the business in a certain time.The financial analysis is particularly important in the management ... business as a basis for decision- making. The indicators reflecting corporate financial analysis quality are:- The quality of the input information.- The methods applying in appropriate analysis. - ... (operated in areas such as: manufacturing, tourism, travel, training, consulting ), the difference between business financial analysis of financial and non-financial enterprises is that the analysis...
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Innovations in GIS 4 ppt
... terrain for an ever-increasing range of GIS applications. At the same time, GIS users are becoming increasingly aware of the effects of error in their applications. In the digital terrainmodelling ... error-directed point insertion. For the purpose of insertingconstraining linear features into the pyramid, the method of classifying vertices by means of the verticalerror criterion is inadequate, since ... ofresearchers working in such disciplines as photogrammetry, surveying, cartography, civil and miningengineering, geology, geography and hydrology. The uncoordinated and independent nature...
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