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README.md
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---
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tags:
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- raman-spectroscopy
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- biotechnology
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- benchtop-spectroscopy
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- pls-regression
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- tabular-regression
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license: cc-by-4.0
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language: en
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pretty_name: Raman Spectra of Bioprocess Analytes Anton 532
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task_categories:
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- tabular-regression
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configs:
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- config_name: default
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data_files:
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- split: train
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path: "train.parquet"
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- split: validation
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path: "val.parquet"
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- split: test
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path: "test.parquet"
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size_categories:
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- n<1K
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---
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## Dataset Overview
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This dataset contains Raman spectra of mixtures of glucose, sodium acetate, and magnesium sulfate. It is part of a series of 8 datasets that use eight different spectrometers that measure nearly the same samples. Some datasets have a bit more samples than others. Each spectrum is paired with ground truth concentration labels verified by enzymatic assays, reflecting the concentration ranges typically found in E. coli fermentation processes.
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## Target Parameters and Concentration Ranges
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The dataset contains measured Raman spectra of samples with different parameters from the following substances:
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* **Glucose**
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* **Acetate**
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* **Magnesium Sulfate**
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Reference values for the samples were measured using an HT analyzer (Cedex BioHT, Roche Diagnostics GmbH, Mannheim, Germany).
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## Data Acquisition
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Raman spectra were recorded using the follwing settings:
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* **Instrument:** Timegate Pico-Raman M2
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* **Laser Wavelength:** 532 nm
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* **Exposure Time:** 90 s (Pulsed/Timegated)
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* **Laser Power:** Not specified (–)
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* **Scans per Sample:** 5
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* **Number of Samples:** 133
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* **Container Material:** Aluminum
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## Citation
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Users should cite the original publication when using this dataset (Lange et. al. https://doi.org/10.1016/j.saa.2025.125861)
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or **BibTex:**
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```
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@article{
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LANGE2025125861,
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title = {Comparing machine learning methods on Raman spectra from eight different spectrometers},
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journal = {Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy},
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volume = {334},
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pages = {125861},
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year = {2025},
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issn = {1386-1425},
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doi = {https://doi.org/10.1016/j.saa.2025.125861},
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url = {https://www.sciencedirect.com/science/article/pii/S1386142525001672},
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author = {Christoph Lange and Maxim Borisyak and Martin Kögler and Stefan Born and Andreas Ziehe and Peter Neubauer and M. Nicolas Cruz Bournazou},
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keywords = {Raman spectroscopy, Machine learning, Partial least squares, Convolutional neural network},
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}
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```
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