Bayesian Integration of Isotope Ratio for Geographic Sourcing of Castor Beans
Joint Authors
Hart, Garret
Ehleringer, James
Kreuzer, Helen
Duckworth, Douglas
Gill, Gary
Webb-Robertson, Bobbie-Jo
West, Jason
Source
Journal of Biomedicine and Biotechnology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-15
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Recent years have seen an increase in the forensic interest associated with the poison ricin, which is extracted from the seeds of the Ricinus communis plant.
Both light element (C, N, O, and H) and strontium (Sr) isotope ratios have previously been used to associate organic material with geographic regions of origin.
We present a Bayesian integration methodology that can more accurately predict the region of origin for a castor bean than individual models developed independently for light element stable isotopes or Sr isotope ratios.
Our results demonstrate a clear improvement in the ability to correctly classify regions based on the integrated model with a class accuracy of 60.9±2.1% versus 55.9±2.1% and 40.2±1.8% for the light element and strontium (Sr) isotope ratios, respectively.
In addition, we show graphically the strengths and weaknesses of each dataset in respect to class prediction and how the integration of these datasets strengthens the overall model.
American Psychological Association (APA)
Webb-Robertson, Bobbie-Jo& Kreuzer, Helen& Hart, Garret& Ehleringer, James& West, Jason& Gill, Gary…[et al.]. 2012. Bayesian Integration of Isotope Ratio for Geographic Sourcing of Castor Beans. Journal of Biomedicine and Biotechnology،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-472589
Modern Language Association (MLA)
Webb-Robertson, Bobbie-Jo…[et al.]. Bayesian Integration of Isotope Ratio for Geographic Sourcing of Castor Beans. Journal of Biomedicine and Biotechnology No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-472589
American Medical Association (AMA)
Webb-Robertson, Bobbie-Jo& Kreuzer, Helen& Hart, Garret& Ehleringer, James& West, Jason& Gill, Gary…[et al.]. Bayesian Integration of Isotope Ratio for Geographic Sourcing of Castor Beans. Journal of Biomedicine and Biotechnology. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-472589
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472589