Providing an imputation algorithm for missing values of longitudinal data using Cuckoo search algorithm: A case study on cervical dystonia
Background: Missing values in data are found in a large number of studies in the field of medical sciences, especially longitudinal ones, in which repeated measurements are taken from each person during the study. In this regard, several statistical endeavors have been performed on the concepts, i...
| Published in: | Electronic Physician |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Electronic Physician
2017-06-01
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| Subjects: | |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5557148/ |
| Summary: | Background: Missing values in data are found in a large number of studies in the field of medical sciences,
especially longitudinal ones, in which repeated measurements are taken from each person during the study. In this
regard, several statistical endeavors have been performed on the concepts, issues, and theoretical methods during
the past few decades.
Methods: Herein, we focused on the missing data related to patients excluded from longitudinal studies. To this
end, two statistical parameters of similarity and correlation coefficient were employed. In addition, metaheuristic
algorithms were applied to achieve an optimal solution. The selected metaheuristic algorithm, which has a great
search functionality, was the Cuckoo search algorithm.
Results: Profiles of subjects with cervical dystonia (CD) were used to evaluate the proposed model after applying
missingness. It was concluded that the algorithm used in this study had a higher accuracy (98.48%), compared with
similar approaches.
Conclusion: Concomitant use of similar parameters and correlation coefficients led to a significant increase in
accuracy of missing data imputation. |
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| ISSN: | 2008-5842 2008-5842 |