dependencies

Course Schedule reduces to one question: is the prerequisite graph a DAG? The signal is spotting the graph framing and using topological sort or DFS to detect a cycle. Here is the answer.

'Works on my machine' is a dependency and environment problem, and for ML it includes CUDA versions and exact library pins that change numerical results. Here is how to make the production environment match training.

Every third-party model, dataset, and library is an attack surface: backdoors, poisoning, arbitrary code on load, license landmines. The signal is treating models and data as supply-chain artifacts that need provenance and vetting. Here is the answer.