Multivariate Spatiotemporal Hawkes Processes and Network Reconstruction
Multivariate Spatiotemporal Hawkes Processes and Network Reconstruction
复制标题
多元时空霍克斯过程与网络重建
DOI:
10.1137/18m1226993
复制
发表时间:
2019
影响因子:
3.6
通讯作者:
Porter, Mason A.
中科院分区:
文献类型:
--
作者:
Yuan, Baichuan;Li, Hao;Bertozzi, Andrea L.;Brantingham, P. Jeffrey;Porter, Mason A.
There is often latent network structure in spatial and temporal data, and the tools of network analysis can yield fascinating insights into such data. In this paper, we develop a nonparametric method for network reconstruction from spatiotemporal data sets using multivariate Hawkes processes. In contrast to prior work on network reconstruction with point-process models, which has often focused on exclusively temporal information, our approach uses both temporal and spatial information and does not assume a specific parametric form of network dynamics. This leads to an effective way of recovering an underlying network. We illustrate our approach using both synthetic networks and networks that we construct from real-world data sets (a location-based social-media network, a narrative of crime events, and violent gang crimes). Our results demonstrate that, in comparison to using only temporal data, our spatiotemporal approach yields improved network reconstruction, providing a basis for meaningful subsequent analysis---such as examinations of community structure and motifs---of the reconstructed networks.
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影响因子:
7.9
作者:
Mohler, George
通讯作者:
Mohler, George
影响因子:
3.7
作者:
Davies T;Marchione E
通讯作者:
Marchione E
DOI:
10.1023/a:1003403601725
发表时间:
1998-06-01
影响因子:
1
作者:
Ogata, Y
通讯作者:
Ogata, Y
影响因子:
2.5
作者:
Benjamin Mark;Garvesh Raskutti;R. Willett
通讯作者:
Benjamin Mark;Garvesh Raskutti;R. Willett
影响因子:
6.1
作者:
Kuang, Da;Brantingham, P. Jeffrey;Bertozzi, Andrea L.
通讯作者:
Bertozzi, Andrea L.