Non-extensive diffusion entropy analysis: non-stationarity in teen birth phenomena Metadata
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- Main Title Non-extensive diffusion entropy analysis: non-stationarity in teen birth phenomena
Author: Scafetta, NicolaCreator Type: PersonalCreator Info: Duke University
Author: Grigolini, PaoloCreator Type: PersonalCreator Info: University of North Texas; Università di Pisa
Author: Hamilton, P.Creator Type: PersonalCreator Info: Texas Woman's University
Author: West, Bruce J.Creator Type: PersonalCreator Info: Duke University; United States. Army Research Office
- Creation: 2008-02-06
- Physical Description: 10 p.: ill.
- Content Description: Paper discussing non-extensive diffusion entropy analysis and non-stationarity in teen birth phenomena.
- Keyword: diffusion entropy analysis
- Keyword: Tsallis
- Keyword: q-entropy
- Keyword: teen birth
- Website: arXiv: cond-mat/0205524
Name: UNT Scholarly WorksCode: UNTSW
Name: UNT College of Arts and SciencesCode: UNTCAS
- Rights Access: public
- Archival Resource Key: ark:/67531/metadc174685
- Academic Department: Physics
- Display Note: This is the pre-print version of the paper.
- Display Note: Abstract: A complex process is often a balance between non-stationary and stationary components. We show how the non-extensive Tsallis q-entropy indicator may be interpreted as a measure of non-stationarity in time series. This is done by applying the non-extensive entropy formalism to the Diffusion Entropy Analysis (DEA). We apply the analysis to the study of the teen birth phenomenon. We find that the unmarried teen births are strongly influenced by social processes with memory. This memory is related to the strength of the non-stationary component of the signal and is more intense than that in the married teen time series. By using the wavelet multiresolution analysis we attempt to give a social interpretation of this effect.