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(he/him) Solar physics PhD turned medicines development postdoc with an interest in how machine learning can accelerate and benefit data processing pipelines. I am also interested in science and data science education and enjoy producing teaching materials.

N.B. Any deep learning mentioned below unless explicitly statred otherwise is construced using the PyTorch framework.

Important repositories:

  • The Seeing AUtoeNcoder (Shaun) 🌤️ 👀 : A method for correcting the effects of the Earth's atmosphere on narrowband optical solar flare observations. This uses a fully-convolutional autoencoder to learn atmospheric seeing corrections based on a model derived from the statistics of turbulent media applied to data with minimal atmospheric distortions.
  • crispy 🌞 🔭 : A Python package for working with imaging spectropolarimetric solar data in fits or zarr format. Designed originally for the Swedish Solar Telescope's CRisp Imaging SpectroPolarimeter (SST/CRISP) instrument, this package will work with any imaging spectropolarimetric data of the Sun.
  • HYPerspectral Image Augmentation (Hypia) 🖼️: A Python package to apply data augmentation to hyperspectral images when training deep neural networks. This builds upon torchvision's transforms but makes it so that the channels dimension does not have to be 3.
  • SoLar Image Classification using convolutional neural networks (Slic) 🌅 🤖 : A deep CNN trained to classify Hα images from Hinode's Solar Optical Telescope (SOT).
  • RADYNVERSION 📈 : An application of an invertible neural network (INN) trained on simulations of solar flares to estimate the parameters of the flaring atmosphere from a set of observations.

Teaching Materials:

  • Teaching: This repository contains a tutorial I gave to fellow PhD students about how unsupervised machine learning works and how to apply it in Python as well as an introduction to machine learning tutorial I presented at the Machine Learning in Heliophysics conference in 2019.
  • Glasgow Machine Learning Course 2019: A course I co-created with a fellow PhD student to teach PhD students and postdocs how machine learning works, about the different kinds of machine learning and how it may be applicable in their research and how to go about implementing it in their research.

John Armstrong's Projects

chianti icon chianti

A simple file to easily find the corresponding ion for a certain wavelength in the CHIANTI database and vice versa.

cmac_coding_ml icon cmac_coding_ml

Course for PhD students on introduction to Python and machine learning.

crispy icon crispy

A Python package for using data from the Swedish 1 m Solar Telescope's CRisp Imaging SpectroPolarimeter instrument.

flare_asymmetries icon flare_asymmetries

This is a repository for the code I am using to analyse asymmetries in optical flare spectral lines.

hypia icon hypia

This is a Python package for hyper-spectral image augmentation for machine learning purposes.

multi_pow icon multi_pow

Deep learning code for the classification of Morphologi G3 images based on their flow function coefficient.

ndcube icon ndcube

A base package for multi-dimensional contiguous and non-contiguous coordinate-aware arrays. Maintainer: @danryanirish

radynversion icon radynversion

Inverting Solar Flare Observations with Invertible Neural Nets (with RADYN physics)

shaun icon shaun

Repository for Deep Neural Network for correcting for seeing in solar flare images.

slic icon slic

A fast tool for solar image classification.

tensorrt icon tensorrt

PyTorch/TorchScript/FX compiler for NVIDIA GPUs using TensorRT

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