Landslide susceptibility assessment by novel hybrid machine learning algorithms by Pham, Binh Thai, Shirzadi, Ataollah, Shahabi, Himan, Omidvar, Ebrahim, Singh, Sushant K., Sahana, Mehebub, Asl, Dawood Talebpour, Ahmad, Baharin, Quoc, Nguyen Kim, Lee, Saro