This Book Presents The State-of-the-art Methodology And Detailed Analytical Models And Methods Used To Assess The Reliability Of Complex Systems And Related Applications In Statistical Reliability Engineering. It Is A Textbook Based Mainly On The Author's Recent Research And Publications As Well As Experience Of Over 30 Years In This Field. The Book Covers A Wide Range Of Methods And Models In Reliability, And Their Applications, Including: Statistical Methods And Model Selection For Machine Learning; Models For Maintenance And Software Reliability; Statistical Reliability Estimation Of Complex Systems; And Statistical Reliability Analysis Of K Out Of N Systems, Standby Systems And Repairable Systems.