Ryoichi Kojima Satoshi Ito Tatsuya Nagao Masato Taya Sparse-Guided RadioUNet with Adaptive Sampling for the MLSP 2025 Sampling-Assisted Pathloss Radio Map Prediction Data Competition. 1-6 2025 MLSP https://doi.org/10.1109/MLSP62443.2025.11204292 conf/mlsp/2025 db/conf/mlsp/mlsp2025.html#KojimaINT25 streams/conf/mlsp