TY - EJOU AU - Oliva, Alberto Fernández AU - Pérez, Francisco Maciá AU - Berná-Martinez, José Vicente AU - Ortega, Miguel Abreu TI - Non-Deterministic Outlier Detection Method Based on the Variable Precision Rough Set Model T2 - Computer Systems Science and Engineering PY - 2019 VL - 34 IS - 3 SN - AB - This study presents a method for the detection of outliers based on the Variable Precision Rough Set Model (VPRSM). The basis of this model is the generalisation of the standard concept of a set inclusion relation on which the Rough Set Basic Model (RSBM) is based. The primary contribution of this study is the improvement in detection quality, which is achieved due to the generalisation allowed by the classification system that allows a certain degree of uncertainty. From this method, a computationally efficient algorithm is proposed. The experiments performed with a real scenario and a comparison of the results with the RSBM-based method demonstrate the effectiveness of the method as well as the algorithm’s efficiency in diverse contexts, which also involve large amounts of data. KW - Outliers KW - Rough Sets (RS) KW - RS Basic Model (RSBM) KW - Variable Precision Rough Set Model (VPRSM) KW - data set KW - Data Mining DO - 10.32604/csse.2019.34.131