12-23 October 2020
GMT timezone

Diagnostic data integration using deep neural networks for real-time plasma analysis

12 Oct 2020, 16:44
1m
Mini Oral and Poster Deep Learning and Machine Learning Poster session A-01

Speaker

RIGONI GAROLA, Andrea (Consorzio RFX)

Description

Recent advances in acquisition equipment is providing experiments with growing amounts of precise yet affordable sensors. At the same time an improved computational power, coming from new hardware resources (GPU, FPGA, TPU), has been made available at relatively low costs. This led us to explore the possibility of completely renewing the chain of acquisition for a fusion experiment, where many high-rate sources of data, coming from different diagnostics, can be combined in a wide framework of algorithms.
If on one side adding new data sources with different diagnostics enrich our knowledge about physical aspects, on the other hand, the dimensions of the overall model grow making relations among variables more and more opaque. A new approach for the integration of such heterogeneous diagnostics, based on deep learning techniques, could ease this problem, performing operations such as feature extraction, compression, denoising, corrupted or missing data recovery and even diagnostic to diagnostic mapping.
However to ensure a real-time signal analysis for fusion experiments, those algorithmic techniques must be adapted to run in well suited hardware. In particular it is shown that, attempting a quantization of neurons transfer functions, such models can be modified to create an embedded firmware. Those firmware, approximating the deep generative model to a set of simple operations, fit well with the simple logic units that are largely abundant in FPGAs. This is the key factor that permits the use of affordable hardware with complex deep neural topology and operates them in real-time.

Are you a student? No
Minioral Yes
IEEE Member Yes

Primary authors

RIGONI GAROLA, Andrea (Consorzio RFX) CAVAZZANA, Roberto (Consorzio RFX) Dr GOBBIN, Marco (Consorzio RFX) DELOGU, Rita Sabrina (Consorzio RFX) MANDUCHI, Gabriele (Consorzio RFX) TALIERCIO, Cesare (Consorzio RFX) LUCHETTA, Adriano Francesco (Consorzio RFX)

Presentation materials