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Treatment of Outliers via Interpolation Method with Neural Network Forecast Performances
| Content Provider | Scilit |
|---|---|
| Author | Wahir, N. A. Nor, M. E. Rusiman, M. S. Gopal, K. |
| Copyright Year | 2018 |
| Description | Journal: Journal of Physics: Conference Series Outliers often lurk in many datasets, especially in real data. Such anomalous data can negatively affect statistical analyses, primarily normality, variance, and estimation aspects. Hence, handling the occurrences of outliers require special attention. Therefore, it is important to determine the suitable ways in treating outliers so as to ensure that the quality of the analyzed data is indeed high. As such, this paper discusses an alternative method to treat outliers via linear interpolation method. In fact, assuming outlier as a missing value in the dataset allows the application of the interpolation method to interpolate the outliers thus, enabling the comparison of data series using forecast accuracy before and after outlier treatment. With that, the monthly time series of Malaysian tourist arrivals from January 1998 until December 2015 had been used to interpolate the new series. The results indicated that the linear interpolation method, which was comprised of improved time series data, displayed better results, when compared to the original time series data in forecasting from both Box-Jenkins and neural network approaches. |
| Related Links | https://iopscience.iop.org/article/10.1088/1742-6596/995/1/012025/pdf http://iopscience.iop.org/article/10.1088/1742-6596/995/1/012025/pdf |
| ISSN | 17426588 |
| e-ISSN | 17426596 |
| DOI | 10.1088/1742-6596/995/1/012025 |
| Journal | Journal of Physics: Conference Series |
| Issue Number | 1 |
| Volume Number | 995 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2018-04-10 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics: Conference Series Tourism, Leisure, Sport and Hospitality Interpolation Method Treatment of Outliers Neural Network Treating Outliers Linear Interpolation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
