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1. brianketchens.github.io brianketchens.github.io Public

   Portfolio Projects Repo

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2. ercot-predictive-modelling ercot-predictive-modelling Public

   The project runs in two phases. Phase 1 establishes a high-accuracy baseline using autoregressive load lags. Phase 2 deliberately removes those lags and rebuilds the model as a weather-structural f…

   Python

3. ecommerce-bottleneck-sql ecommerce-bottleneck-sql Public

   An enterprise-scale SQL logistics audit diagnosing spatial and temporal fulfillment friction across 32M+ transaction rows to optimize warehouse routing and labor utilization.

   Python

4. CI-defect-reduction CI-defect-reduction Public

   The gap between the plant's current performance and its own best observed performance is the opportunity. The analytical question is which controllable conditions move a run from one band to the ot…

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5. instrumented-job-search instrumented-job-search Public

   An instrumented job search. Scores postings against a resume using semantic embeddings and skill-equivalency matching, then logs real application outcomes to test whether qualification fit actually…

   Python

6. olist_star olist_star Public

   A dbt + Snowflake star schema modeling the Olist Brazilian e-commerce dataset, with tested referential integrity.

   Python