• Unsupervised learning of well drilling operations : fuzzy rule-based approachRiid, Andri; Saadallah, NejmProceedings : INES 2012 : IEEE 16th International Conference on Intelligent Engineering Systems : June 13-15, 2012 Lisbon, Portugal2012 / p. 375-380 : ill https://www.researchgate.net/publication/258568174_Unsupervised_Learning_of_Well_Drilling_Operations_Fuzzy_Rule-Based_Approach