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Arko007/walnut-rancidity-predictor

Walnut Storage Timeseries Dataset (Indian Conditions) Synthetic time-series dataset for training walnut rancidity prediction models. Generated using Arrhenius-based lipid oxidation kinetics simulating real Indian storage scenarios. Dataset Details Property Value Total rows 5,392,174 Total sequences 90,000 Sequence length 30–90 days Storage duration 0–180 days Generation method Arrhenius kinetics + noise Storage Scenarios… See the full description on the dataset page: https://huggingface.co/datasets/Arko007/walnut-rancidity-predictor.

sourceHugging Facemitupdated 7mo agoView on Hugging Face
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Dataset Card

Walnut Storage Timeseries Dataset (Indian Conditions)

Synthetic time-series dataset for training walnut rancidity prediction models. Generated using Arrhenius-based lipid oxidation kinetics simulating real Indian storage scenarios.

Dataset Details

PropertyValue
Total rows5,392,174
Total sequences90,000
Sequence length30–90 days
Storage duration0–180 days
Generation methodArrhenius kinetics + noise

Storage Scenarios

ScenarioTemperatureHumidityWeight
Cold storage warehouse2–8 °C40–60 %20 %
Hill region (Kashmir / Himachal Pradesh)5–20 °C35–65 %25 %
Ambient warehouse18–32 °C50–75 %30 %
Hot transport (Indian summer)28–40 °C55–85 %25 %

Chemistry Model

Oxidation simulated via Arrhenius kinetics:

k  = A · exp(-Ea / (R · T))       A=1.5e12, Ea=80000 J/mol, R=8.314
PV(t) = PV₀ · exp(k · t)

Rancidity threshold: PV > 5 meq/kg

Columns

ColumnUnitDescription
sequence_id—Unique storage sequence identifier
daydaysStorage day index
temperature°CDaily ambient temperature
humidity% RHRelative humidity
moisture%Walnut moisture content
oxygenfractionOxygen level (0.18–0.23)
peroxide_valuemeq/kgPrimary oxidation marker
free_fatty_acids%FFA content
hexanal_levelppmVolatile oxidation byproduct
oxidation_index—Composite oxidation score
rancidity_probability[0,1]sigmoid(PV − 5)
shelf_life_remaining_daysdaysDays until PV exceeds 5 meq/kg
decay_curve_value[0,1]Normalised PV (PV/10, capped at 1)

Associated Model

Trained model: Arko007/walnut-rancidity-predictor

License

MIT