Bayesian model selection for complex dynamic systems.
Bayesian model selection for complex dynamic systems.
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DOI:
10.1038/s41467-018-04241-5
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发表时间:
2018-05-04
影响因子:
16.6
通讯作者:
Fabry B
中科院分区:
文献类型:
--
作者:
Mark C;Metzner C;Lautscham L;Strissel PL;Strick R;Fabry B
Time series generated by complex systems like financial markets and the earth’s atmosphere often represent superstatistical random walks: on short time scales, the data follow a simple low-level model, but the model parameters are not constant and can fluctuate on longer time scales according to a high-level model. While the low-level model is often dictated by the type of the data, the high-level model, which describes how the parameters change, is unknown in most cases. Here we present a computationally efficient method to infer the time course of the parameter variations from time-series with short-range correlations. Importantly, this method evaluates the model evidence to objectively select between competing high-level models. We apply this method to detect anomalous price movements in financial markets, characterize cancer cell invasiveness, identify historical policies relevant for working safety in coal mines, and compare different climate change scenarios to forecast global warming. Systematic changes in stock market prices or in the migration behaviour of cancer cells may be hidden behind random fluctuations. Here, Mark et al. describe an empirical approach to identify when and how such real-world systems undergo systematic changes.
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DOI:
10.1016/s0378-4371(03)00019-0
发表时间:
2003-05-01
影响因子:
3.3
作者:
Beck, C;Cohen, EGD
通讯作者:
Cohen, EGD
影响因子:
4.6
作者:
Bogachev MI;Markelov OA;Kayumov AR;Bunde A
通讯作者:
Bunde A
DOI:
10.1083/jcb.200810041
发表时间:
2009-02-23
期刊:
The Journal of cell biology
影响因子:
--
作者:
Doyle AD;Wang FW;Matsumoto K;Yamada KM
通讯作者:
Yamada KM
影响因子:
21.3
作者:
Fraley, Stephanie I.;Feng, Yunfeng;Krishnamurthy, Ranjini;Kim, Dong-Hwee;Celedon, Alfredo;Longmore, Gregory D.;Wirtz, Denis
通讯作者:
Wirtz, Denis
影响因子:
2.1
作者:
Clark, Todd E.;Ravazzolo, Francesco
通讯作者:
Ravazzolo, Francesco