Update README with Project 8 metadata
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README.md
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## Project 8
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### Project 8 Dataset Field Description
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## Project 8
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The Project 8 dataset is broken into training, validation, and test datasets which are identically constructed.
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All contain a set of electron events with randomized energy, pitch angle, and radius parameters.
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The data are divided into hdf5 files with ~5000 electrons per file; each file is about 5 GB, with the exception of one, which has fewer electrons and is smaller.
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There are about 50,000 electrons total in the dataset. The total dataset size is about 50 GB.
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The train dataset contains 8 hdf5 files, the validation dataset has 1 hdf5 file, and the test dataset has 2 (including the smaller file).
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The experiments presented in the publication use `output_ts_I + output_ts_I_cav_noise` and `output_ts_Q + output_ts_Q_cav_noise` as inputs (noisy in-phase and quadrature time series).
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The target for regression is `energy_eV` (truth value for energy of the electron, in eV).
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This data in each hdf5 file includes the following
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### Project 8 Dataset Field Description
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| Parameter | Type / Size | Description |
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|-----------|-------------|-------------|
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| `output_ts_I` | size=(24576,1), dtype=float32 | In-phase signal time series |
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| `output_ts_Q` | size=(24576,1), dtype=float32 | Quadrature signal time series |
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| `output_ts_I_cav_noise` | size=(24576,1), dtype=float32 | In-phase cavity (frequency-dependent) noise time series |
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| `output_ts_Q_cav_noise` | size=(24576,1), dtype=float32 | Quadrature cavity (frequency-dependent) noise time series |
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| `output_ts_I_gauss_noise` | size=(24576,1), dtype=float32 | In-phase Gaussian noise time series |
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| `output_ts_Q_gauss_noise` | size=(24576,1), dtype=float32 | Quadrature Gaussian noise time series |
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| `energy_eV` | dtype=float32 | Truth value for energy of the electron (target for regression), in eV |
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| `avg_carrier_frequency_Hz` | dtype=float32 | Truth value for average cyclotron frequency of the electron, in Hz |
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| `start_carrier_frequency_Hz` | dtype=float32 | Truth value for starting cyclotron frequency of the electron, in Hz |
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| `avg_axial_frequency_Hz` | dtype=float32 | Truth value for average axial frequency of the electron, in Hz |
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| `pitch_angle_deg` | dtype=float32 | Truth value for pitch angle (direction of the electron’s momentum with respect to the magnetic field) of the electron, in degrees |
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| `radius_input_m` | dtype=float32 | Truth value for starting radius of the electron before one trajectory step (input value), in meters |
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| `radius_m` | dtype=float32 | Truth value for starting radius of the electron after one trajectory step, in meters |
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| `radius_phase` | dtype=float32 | Truth value for instantaneous polar angle in the X-Y plane of the electron’s starting position, in meters |
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| `slope_Hz` | dtype=float32 | Truth value for slope of the track in spectrogram space, in Hz/s |
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