code for "Joint Activity Detection and Channel Estimation for Massive Connectivity: Where Message Passing Meets Score-Based Generative Priors"

arXiv: https://arxiv.org/abs/2506.00581

First-order score network: https://drive.google.com/file/d/1jFgliPvv8Ff58xrV0ErJBK4lVP-pwbzP/view?usp=sharing

Second-order score network: https://drive.google.com/file/d/1WWhMvEOgnYchy8jSwI7X4zlr9eg__vW1/view?usp=sharing

Test dataset: https://drive.google.com/file/d/1jDnB1e9-va3wGKWQ9MbphFDSmkk6B3XK/view?usp=sharing