1. Lab of Artificial NetworksInstitute of Semiconductors, CASBeijingPeople's Republic of China
2. CAS Center for Excellence in Brain Science and Intelligence TechnologyShanghaiPeople's Republic of China
3. University of Chinese Academy of SciencesBeijingPeople's Republic of China
4. Beijing Key Laboratory of Semiconductor Neural Network Intelligent Sensing and Computing TechnologyBeijingPeople's Republic of China