AI fun matters

Across: 1) Well recovered after effort. 7) Covered with water. 12) Small room extension. 13) ___ Artois, Belgian beer. 14) Identical copies (e.g., of a git repo). 15) Harry ___, the fictional wizard. 16) Country next to UK, in the local language. 17) Hastily prepare for an exam. 19) Object-oriented language. 20) John ___, British mathematician, Whitehead Prize recipient. 21) Being in the past. 22) Oil platforms. 23) Body twists? 25) Buenos ___, host of IJCAI 2015. 28) Theorem for conditional probabilities, popular in AI. 31) Modified. 35) Ways to utilize. 36) Pinot ___, a type of wine. 37) ___, Longoria, American actress. 38) Greek letter, symbol of Pearson's correlation. 39) ___ Ginsberg, AI scientist. 40) The termination of a person in their teens. 41) Painted in pessimistic shades. 43) A type of a function defined on the fly. 45) International agreement. 46) Tighter as a deadline. 47) Dispatches to a destination. 48) Tire patterns.