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F-Deepwalk:一种用于交通网络的社区检测模型。

F-Deepwalk: A Community Detection Model for Transport Networks.

作者信息

Guo Jiaao, Liang Qinghuai, Zhao Jiaqi

机构信息

School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China.

出版信息

Entropy (Basel). 2024 Aug 22;26(8):715. doi: 10.3390/e26080715.

Abstract

The design of transportation networks is generally performed on the basis of the division of a metropolitan region into communities. With the combination of the scale, population density, and travel characteristics of each community, the transportation routes and stations can be more precisely determined to meet the travel demand of residents within each of the communities as well as the transportation links among communities. To accurately divide urban communities, the original word vector sampling method is improved on the classic Deepwalk model, proposing a Random Walk (RW) algorithm in which the sampling is modified with the generalized travel cost and improved logit model. Urban spatial community detection is realized with the K-means algorithm, building the F-Deepwalk model. Using the basic road network as an example, the experimental results show that the Deepwalk model, which considers the generalized travel cost of residents, has a higher profile coefficient, and the performance of the model improves with the reduction of random walk length. At the same time, taking the Shijiazhuang urban rail transit network as an example, the accuracy of the model is further verified.

摘要

交通网络的设计通常是在将大都市地区划分为社区的基础上进行的。结合每个社区的规模、人口密度和出行特征,可以更精确地确定交通路线和站点,以满足每个社区内居民的出行需求以及社区之间的交通联系。为了准确划分城市社区,在经典的Deepwalk模型上改进了原始词向量采样方法,提出了一种随机游走(RW)算法,其中采样通过广义出行成本和改进的logit模型进行修正。利用K均值算法实现城市空间社区检测,构建F-Deepwalk模型。以基本道路网络为例,实验结果表明,考虑居民广义出行成本的Deepwalk模型具有更高的轮廓系数,并且模型性能随着随机游走长度的减小而提高。同时,以石家庄城市轨道交通网络为例,进一步验证了模型的准确性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c538/11353666/401d359fae50/entropy-26-00715-g001.jpg

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