A New Crescent Moon Visibility Criteria using Circular Regression Model: A Case Study of Teluk Kemang, Malaysia
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DOI: 10.17576/jsm-2020-4904-15
Abstract: Many astronomers have studied lunar crescent visibility throughout history. Its importance is unquestionable, especially in determining the local Islamic calendar and the dates of important Islamic events. Different criteria have been used to predict the… read more here.
Keywords: visibility; moon; regression model; crescent moon ... See more keywords
Comparative Study of Clustering-Based Outliers Detection Methods in Circular-Circular Regression Model
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DOI: 10.17576/jsm-2021-5006-24
Abstract: This paper is a comparative study of several algorithms for detecting multiple outliers in circular-circular regression model based on the clustering algorithms. Three measures of similarity based on the circular distance were used to obtain… read more here.
Keywords: regression model; comparative study; circular circular; circular regression ... See more keywords
Detection of Outliers in Circular Regression Model Via DFBETAcIS Statistic
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DOI: 10.17576/jsm-2024-5304-16
Abstract: The outlier issues in circular regression models have recently received much attention. The presence of outliers may cause the sign and magnitude of regression coefficients to vary, resulting in inaccurate model development and incorrect prediction.… read more here.
Keywords: regression model; dfbetacis statistic; regression; circular regression ... See more keywords