城市元胞自动机扩展邻域效应的测量与校准研究
Measuring and calibrating extended neighborhood effect of urban cellular automata model based on particle swarm optimization
查看参考文献31篇
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文摘
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城市元胞模型由于在定量分析与预测城市动态的潜力而受到众多研究者的持续关注。邻域规则是主导城市元胞模型模拟过程的关键组件。研究表明,不同土地利用组合间存在显著的邻域效应,且邻域效应具有惯性、排斥和吸引等影响。然而,传统城市元胞模型主要考虑的是特定分辨率下较小窗口的邻域范围。本文尝试刻画更大窗口的邻域效应及其对元胞模型的影响。基于测量的扩展邻域因子,应用粒子群优化算法校准大窗口邻域规则,并创建了考虑扩展邻域效应的城市元胞模型。为验证模型有效性,将其应用于模拟厦门市1995-2010年期间的城市扩张动态。与3×3摩尔邻域的逻辑回归模型相比较,1995-2010年期间的建设用地模拟精度从80.7%提高到83.9%,总体精度从87.8%提高到89.6%,Kappa系数从70.0%提高到74.5%,表明考虑扩展邻域效应的城市模型取得了更好的模拟效果。 |
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其他语种文摘
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Simulation and quantitative analysis of urban land-use change dynamics are an effective way to understand the evolution of spatial structure in urban systems. Cellular automata (CA) has drawn continuous and increasing interest of researchers in the field of land use and land cover change simulation. Neighborhood rules are a core component of the urban CA model, with varied neighborhood effects among different land use combinations. Most urban CA models constructed with neighborhood rules consider only a small neighborhood scope under a specific spatial resolution. However, the extended enrichment factor indicates that there are still obvious neighborhood effects in large neighborhoods with a particularly long distance to the central cell. Based on a measured extended enrichment factor for a large neighborhood, we applied particle swarm optimization (PSO) to obtain the parameter settings of neighborhood rules, including various sub- neighborhoods at different distances within the large neighborhood. The extracted neighborhood rules were integrated into a widely used logistic regression urban CA model, Logistic-CA (LNCA), and a large neighborhood urban land use model, PSO-LNCA, was developed. Using Xiamen City as a study case, the PSO-LNCA model was implemented to simulate urban growth during the period between 1995 and 2010. The accuracy of simulated results by the model was evaluated with confusion matrix and Kappa coefficient. Accuracies for built-up land and non-built land and overall accuracy for 2010 are 83.9%, 91.7%, and 89.6%, respectively, and the Kappa coefficient for 2010 is 74.5%. The results show that the PSO-LNCA model achieved significantly higher simulation accuracy for built-up land and Kappa coefficient than the traditional urban CA model with a 3×3 kernel neighborhood (3.2% higher accuracy for builtup land and 4.5% higher for Kappa coefficient, respectively), and also generated relatively higher overall accuracy (1.8% higher). By integrating the extended neighborhood module, the simulation result generated by the PSOLNCA model is closer to the actual space morphology and structure, compared with the traditional 3×3 kernel Logistic-CA model. |
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来源
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地理科学进展
,2014,33(12):1624-1633 【核心库】
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关键词
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城市扩张
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元胞自动机
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扩展邻域效应
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粒子群智能
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厦门市
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地址
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1.
中国科学院城市环境研究所, 中国科学院城市环境与健康重点实验室, 福建, 厦门, 361021
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集美大学理学院, 福建, 厦门, 361021
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-6301 |
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学科
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测绘学 |
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基金
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国家自然科学基金项目
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集美大学陈秋明学科建设基金项目
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文献收藏号
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CSCD:5317549
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