Results

Current research & experimental status

Proposed, implemented, verified and experimentally observed are kept distinct. Nothing is presented as a finished finding unless it is one.

Proposed

The research design, questions, hypotheses, datasets and methodology defined in Research_Proposal.md v2.0.

Implemented

The Python pipeline is scaffolded and running: forecasting model hierarchy, evaluation metrics, inventory simulator (lost sales) and a Streamlit prototype, with an automated test suite.

Verified

Software behavior is verified: the test suite passes and the pipeline is deterministic. This verifies the engine, not the research findings.

Experimentally observed

No final experimental results exist yet. Findings will appear here only after the M5 and Favorita experiments complete.

Research status

Where the project actually stands.

What is proposed, what is implemented and verified, and what experiments are still to be run — from the real repository state.

Proposal

  • Research question defined
  • Research objectives defined
  • Dataset strategy defined
  • Methodology defined (v2.0)

Implementation

  • Forecasting pipeline scaffolded
  • Inventory simulator implemented (lost sales)
  • Evaluation metrics implemented
  • Streamlit prototype implemented
  • Automated tests implemented

Experiment

  • M5 full experiment
  • Favorita replication
  • Cost-sensitivity sweep
  • LLM evaluation
  • Final statistical testing

The Experiment items are not yet complete. The website reports them as planned — nothing is presented as finished research.

Verified synthetic sanity check

A first, honest illustration — not final evidence.

Label: Verified synthetic-data sanity check — not final research evidence.

On the synthetic run, SARIMA had the lowest MAE, but XGBoost produced the lowest total inventory cost — a first illustration that the most accurate forecast is not automatically the most operationally valuable one.
Source: results/experiment_results.csv · 4 synthetic demand series × 7 models, 7-day horizon

SARIMA — lowest MAE

7.199

XGBoost — lowest inventory cost

1881.5

Results will appear here after the final M5 and Favorita experiments. The values above come from a synthetic-data run used only to sanity-check the pipeline — they illustrate the research thesis but are not evidence.