地球信息科学学报 ›› 2020, Vol. 22 ›› Issue (5): 1033-1048.doi: 10.12082/dqxxkx.2020.190661
收稿日期:
2019-11-05
修回日期:
2020-03-17
出版日期:
2020-05-25
发布日期:
2020-07-25
通讯作者:
高长春
E-mail:gcc369@dhu.edu.cn
作者简介:
周 琦(1983— ),男,博士生,主要从事城市创意产业组织管理、城市区域发展研究。E-mail:qiweekend@163.com
基金资助:
Received:
2019-11-05
Revised:
2020-03-17
Online:
2020-05-25
Published:
2020-07-25
Contact:
GAO Changchun
E-mail:gcc369@dhu.edu.cn
Supported by:
摘要:
基于人文地理视角下的城市创意产业图像可视化分析对城市深层次空间综合和区域创新发展具有重大意义。但Swarm群智能动态时空建模难以满足创意产业空间集聚的可视化发展。本文研究目标是,从城市区域创意产业空间聚类影响因素指标出发,创新性地提出区域空间动态集聚轨迹算法(Density-Based Interest Spatial Clustering of Path,DBICP),并与计算机浏览器共建聚类可视化图像,为城市管理提供决策依据。首先,根据影响因素指标体系,利用2014—2018年空间卡口流量数据和产业指标数据进行预处理,构建空间标准聚类算法DBSCAN。然后,对其进行聚类密度分级优化形成全新DBICP算法并得出初步轨迹图像。最后,通过源码转译实现了浏览器界面下空间动态集聚轨迹图像的输出。结果表明:以上海市为例,普陀区、浦东新区、徐汇地区的创意产业空间分布形成了3种不同的聚类模式,并相应提出了分摊、均布、虹吸的管控策略。此方法克服了传统图像的聚类分级和轨迹测量的缺失,可以有效地从指标数据中发现图像轨迹聚类信息,体现了地理信息科学和人文社会学科的交叉融合。也为大数据动态图像的集聚方法提供了全新视角和借鉴价值。
周琦, 高长春. 城市创意产业空间动态集聚演化的计算与可视优化方法[J]. 地球信息科学学报, 2020, 22(5): 1033-1048.DOI:10.12082/dqxxkx.2020.190661
ZHOU Qi, GAO Changchun. The Calculation and Visual Optimization Method of Spatial Dynamic Agglomeration Evolution of Urban Creative Industries[J]. Journal of Geo-information Science, 2020, 22(5): 1033-1048.DOI:10.12082/dqxxkx.2020.190661
表1
基于城市创意产业区空间动态集聚的关键影响因素指标集合"
主范畴与核心范畴关系因素 | 符号属性 | 指标说明 |
---|---|---|
Q1投资需求因素 | Investment | 当前投资环境的总需求量,随企业组织创新行为而改变 |
Q2企业数量因素 | Number of enterprises | 该模型中考虑的各创意产业区内企业的迁徙数目 |
Q3租金水平因素 | Rent | 租赁办公空间需要的资金 |
Q4交通车辆因素 | transportation | 随着创意园核心区域辐射半径车流量变化而变化 |
Q5教育水平因素 | Education | 随着创意园区内企业技术教育水平的变化而变化 |
Q6消费要求因素 | Consumption | 随着创意园区内消费客群水平的变化而变化 |
Q7零售产值因素 | Retail outp value | 随着创意园区内总体财政支持水平的变化而变化 |
表3
交通车流量的指标数据采集(普陀区域交通路段卡口节选)"
卡口类型 | 坐标位置 (选取骨干路网) | 经纬度/ ° (选取骨干路网) | 出行高峰合计/(辆/h) | |
---|---|---|---|---|
交通十字卡口 | 1 | KKID01外环高速与沪嘉高速交叉口 | 121.365°E, 31.293°N | 西向东4705 东向西3225 南向北4641 北向南3927 |
2 | KKID02 真南路与古浪路交叉口 | 121.371°E, 31.290°N | 西向东2886 东向西2140 南向北1414 北向南2954 | |
3 | KKID03 真北路与真南路交叉口 | 121.399°E, 31.274°N | 西向东3970 东向西5288 南向北5905 北向南4444 | |
4 | KKID04 桃浦路与曹杨路交叉口 | 121.410°E, 31.267°N | 西向东4293 东向西2777 南向北3500 北向南6121 | |
5 | KKID05 桃浦路与真北路交叉口 | 121.399°E, 31.265°N | 西向东4473 东向西2940 南向北3803 北向南6484 | |
6 | KKID06 武宁路与真北路交叉口 | 121.398°E, 31.251°N | 西向东5348 东向西4949 南向北5100 北向南6222 | |
7 | KKID07 武宁路与梅岭北路交叉口 | 121.405°E, 31.247°N | 西向东3888 东向西4112 南向北6001 北向南4885 | |
8 | KKID08 武宁路与曹杨路交叉口 | 121.415°E, 31.251°N | 西向东3230 东向西4029 南向北5949 北向南5181 | |
9 | KKID09 武宁路与东新路交叉口 | 121.425°E, 31.247°N | 西向东3511 东向西5390 南向北4717 北向南4481 | |
10 | KKID10 宁夏路与金沙径路交叉口 | 121.419°E, 31.237°N | 西向东2900 东向西4227 南向北5100 北向南4213 | |
11 | KKID11 泸定路与金沙径路交叉口 | 121.261°E, 31.393°N | 西向东4143 东向西4920 南向北5028 北向南4009 | |
12 | KKID12 泸定路与云岭东路交叉口 | 121.393°E, 31.228°N | 西向东4440 东向西3889 南向北4005 北向南3900 | |
13 | KKID13 镇坪路与光复西路交叉口 | 121.438°E, 31.251°N | 西向东4200 东向西3592 南向北5504 北向南3742 | |
14 | KKID14 沪太路与志丹路交叉口 | 121.438°E, 31.278°N | 西向东4760 东向西3300 南向北5800 北向南4172 | |
15 | KKID15 武宁路与中宁路交叉口 | 121.419°E, 31.251°N | 西向东3242 东向西3121 南向北4839 北向南4416 |
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