There may be more than one definition for the acronym, but I know SNLP as statistical natural language processing, which is a statistical technique for the automatic analysis of natural (human) language data. It's often included in discussions aorund machine learning, AI and advanced analytics.
Hope that helps!
I assume it stands for Supply Network Logistic Planning - In a nutshell, it is an integrated and an optimized '7R' approach of procuring, transporting and delivering goods within a complex supply network ( suppliers supplier to customers customer)
7R - Right Product, Right Quantity, Right Quality, Right Time, Right Place, Right Customer and Right Condition
Hope this helps