A new paper published on arXiv demonstrates that determining the minimum number of neurons required for a two-hidden-layer ReLU neural network to approximate a target function is an NP-hard problem. This finding holds true for various approximation constraints and even for simplified network architectures. The research suggests that heuristic methods are likely necessary for optimizing ReLU neural networks, as achieving an optimal configuration in polynomial time is computationally infeasible. AI
IMPACT Theoretical findings suggest heuristic approaches are necessary for optimizing neural network architectures, impacting future research in efficient model design.
RANK_REASON Academic paper detailing theoretical computational complexity of neural network architecture. [lever_c_demoted from research: ic=1 ai=1.0]
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