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- W3190134129 abstract "Hyperdimensional computing (HDC) is a brain-inspired computing paradigm-based on high-dimensional holistic representations of vectors. It recently gained attention for embedded smart sensing due to its inherent error-resiliency and suitability to highly parallel hardware implementations. In this work, we propose a programmable all-digital CMOS implementation of a fully autonomous HDC accelerator for always-on classification in energy-constrained sensor nodes. By using energy-efficient standard cell memory (SCM), the design is easily cross-technology mappable. It achieves extremely low power, 5 <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$mu text{W}$ </tex-math></inline-formula> in typical applications, and an energy efficiency improvement over the state-of-the-art (SoA) digital architectures of up to <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$3times $ </tex-math></inline-formula> in post-layout simulations for always-on wearable tasks such as Electromyography (EMG) hand gesture recognition. As part of the accelerator’s architecture, we introduce novel hardware-friendly embodiments of common HDC-algorithmic primitives, which results in <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$3.3times $ </tex-math></inline-formula> technology scaled area reduction over the SoA, achieving the same accuracy levels in all examined targets. The proposed architecture also has a fully configurable datapath using microcode optimized for HDC stored on an integrated SCM-based configuration memory, making the design “general-purpose” in terms of HDC algorithm flexibility. This flexibility allows usage of the accelerator across novel HDC tasks, for instance, a newly designed HDC-algorithm for the task of ball bearing fault detection." @default.
- W3190134129 created "2021-08-16" @default.
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- W3190134129 date "2021-10-01" @default.
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- W3190134129 title "A 5 <i>μ</i>W Standard Cell Memory-Based Configurable Hyperdimensional Computing Accelerator for Always-on Smart Sensing" @default.
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- W3190134129 doi "https://doi.org/10.1109/tcsi.2021.3100266" @default.
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