Gongrui Nan Fei Chao Frequency Domain Distillation for Data-Free Quantization of Vision Transformer. 205-216 2023 PRCV (8) https://doi.org/10.1007/978-981-99-8543-2_17 conf/prcv/2023-8 db/conf/prcv/prcv2023-8.html#NanC23