Yun Cheng Olga Saukh Lothar Thiele SensorFormer: Efficient Many-to-Many Sensor Calibration With Learnable Input Subsampling. 20577-20589 2022 9 IEEE Internet Things J. 20 https://doi.org/10.1109/JIOT.2022.3177948 db/journals/iotj/iotj9.html#ChengST22