An Engineered LightGBM-SHAP Model for Soil Fertility Classification and Fertiliser Recommendation — KNUST CS Research Proposal 2026
# E-LightGBM: Soil Fertility Classification & Fertiliser Recommendation
**Author:** Odai Joel Nii Afotey
**Student ID:** 21019091
**Institution:** Department of Computer Science, KNUST, Ghana
**Supervisor:** Dr. Eric Osei
**Year:** 2026
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## Project Overview
This repository contains the full source code for the research proposal:
> *"An Engineered LightGBM-SHAP Model for Soil Fertility Classification
> and Fertiliser Recommendation: A Public Dataset Study on Ghanaian
> Smallholder Farms"*
The study develops **E-LightGBM** — an engineered variant of LightGBM
that integrates a SHAP TreeExplainer module and a rule-based fertiliser
recommendation layer — to classify soil fertility levels (Low / Medium /
High) and generate farmer-interpretable fertiliser recommendations.
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## Engineering Contribution
- **Operation:** [F] FABRICATE
- **What was added:** SHAP TreeExplainer module + fertiliser
recommendation output layer
- **Engineered model name:** E-LightGBM
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## Baseline Models
| Model | Role |
|-------|------|
| Standard LightGBM | Scientific control (unengineered) |
| XGBoost | Gradient boosting competitor |
| Random Forest | Non-boosting ensemble benchmark |
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