Complex sentence: Multilinear Principal Component Analysis (MPCA) is a multilinear extension of principal component analysis (PCA) that is employed in the analysis of n-way arrays, ie a cube or hyper-cube of numbers.
Split into simpler sentences: Multilinear Principal Component Analysis (MPCA) is a multilinear extension of principal component analysis (PCA). MPCA is employed in the analysis of n-way arrays, ie a cube or hyper-cube of numbers.