Hongyang Jia: I received my B.Eng. in Microelectronics and Bachelor in Economics as second major from Tsinghua University in 2014. My research interests are SoC design and system integration for ultra-low energy applications. More specifically, I am exploring approximation techniques, in both algorithmic and circuitry level, to relax the bottleneck of energy efficiency vs programmability trade-off in machine-learning hardware platforms. The work covers a range of algorithms, architecture and circuits design, as well as platform demonstration. Website: https://scholar.princeton.edu/hongyangjia/.