In this repo, I'll be experimenting with dimension reduction techniques on the training data used in my project Image-based classification of intense radio bursts from spectrograms: An application to Saturn Kilometric Radiation' published to the Journal of Geophysical Research, the repo is found here.
I'll be applying different dimension reduction techniques on a set of 1533 frequency-time arrays and comparing how their distributions differentiates between the sub-classes of radio burst. These subclasses are described in detail in this paper. The radio bursts we refer to are 'Low Frequency Extensions of Saturn Kilometric Radiation' (LFE). The subclasses of LFE are listed below.
| Type | Count | Description |
|---|---|---|
| LFE | 479 | Standard appearance |
| LFEm | 96 | LFEs longer than a single planetary rotation |
| LFEsp | 99 | LFE with sparse emission |
| LFEsm | 164 | LFE that is of intermediate extension, excursion to > 40kHz but < 100kHz |
| LFEdg | 111 | LFE with a datagap |
| LFEext | 35 | LFE with extinction at high frequencies |