کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7381664 1480173 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Autocorrelation and cross-correlation in time series of homicide and attempted homicide
ترجمه فارسی عنوان
همبستگی خودکار و همبستگی متقابل در سری زمانی قتل و تلاش برای قتل
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی
We propose in this paper to establish the relationship between homicides and attempted homicides by a non-stationary time-series analysis. This analysis will be carried out by Detrended Fluctuation Analysis (DFA), Detrended Cross-Correlation Analysis (DCCA), and DCCA cross-correlation coefficient, ρDCCA(n). Through this analysis we can identify a positive cross-correlation between homicides and attempted homicides. At the same time, looked at from the point of view of autocorrelation (DFA), this analysis can be more informative depending on time scale. For short scale (days), we cannot identify auto-correlations, on the scale of weeks DFA presents anti-persistent behavior, and for long time scales (n>90 days) DFA presents a persistent behavior. Finally, the application of this new type of statistical analysis proved to be efficient and, in this sense, this paper can contribute to a more accurate descriptive statistics of crime.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 400, 15 April 2014, Pages 12-19
نویسندگان
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