Dr. Shuochao Yao Profile

Dr. Shuochao Yao

at Univ. of Illinois

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Proceedings Article | 10 May 2019 Presentation + Paper

Dependable machine intelligence at the tactical edge

Archan Misra, Kasthuri Jayarajah, Dulanga Weerakoon, Randy Tandriansyah, Shuochao Yao, Tarek Abdelzaher

Proceedings Volume 11006, 1100608 (2019) https://doi.org/10.1117/12.2522656

KEYWORDS: Cameras, Sensors, Video, Performance modeling, Image processing, Signal to noise ratio, Visual process modeling, Imaging systems, Analytics, Environmental sensing

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The paper describes a vision for dependable application of machine learning-based inferencing on resource-constrained edge devices. The high computational overhead of sophisticated deep learning learning techniques imposes a prohibitive overhead, both in terms of energy consumption and sustainable processing throughput, on such resource-constrained edge devices (e.g., audio or video sensors). To overcome these limitations, we propose a “cognitive edge” paradigm, whereby (a) an edge device first autonomously uses statistical analysis to identify potential collaborative IoT nodes, and (b) the IoT nodes then perform real-time sharing of various intermediate state to improve their individual execution of machine intelligence tasks. We provide an example of such collaborative inferencing for an exemplar network of video sensors, showing how such collaboration can significantly improve accuracy, reduce latency and decrease communication bandwidth compared to non-collaborative baselines. We also identify various challenges in realizing such a cognitive edge, including the need to ensure that the inferencing tasks do not suffer catastrophically in the presence of malfunctioning peer devices. We then introduce the soon-to-be deployed Cognitive IoT testbed at SMU, explaining the various features that enable empirical testing of various novel edge-based ML algorithms.

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