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ej188/README.md

Hi there! Welcome to my GitHub 👋

I’m interested in machine learning, statistics, mathematics, and the software systems that turn data into useful applications. My projects explore time-series forecasting, equipment-health modeling, anomaly detection, and applied AI.

Outside of studying and coding, I enjoy Brazilian Jiu-Jitsu (BJJ), Muay Thai, watching UFC, and weightlifting (I am in the 1000lbs club!).

Selected work

From my latest work to earlier projects:

Project Focus
Anomaly Analysis An ongoing independent study of anomaly-detection calibration and LLM-assisted verification: precision–recall tradeoffs, decision thresholds, false-alarm analysis, and scenario-based evaluation.
Predictive Maintenance of Rotating Equipments An internship proof of concept connecting sensor and maintenance data with temporal feature engineering, Random Forest regression, and remaining-useful-life modeling. Covers operating-cycle segmentation, near-failure error analysis, target validity, and presentation to executive and global engineering stakeholders.
Demand Forecasting Multivariate shipment-demand forecasting with Temporal Fusion Transformers and PyTorch Forecasting: hierarchical features, leakage-aware feature engineering, temporal holdout validation, real-unit error metrics, and SARIMAX baseline context.
Predictive Maintenance of CNC Machine Industrial telemetry integration with MTConnect, IO-Link, MySQL, and Python, alongside coolant-conductivity forecasting. Includes SQL ingestion, residual diagnostics, autocorrelation analysis, and prediction-interval validation.

Technical focus

  • ML engineering & forecasting: Python, Random Forest regression, Temporal Fusion Transformers, PyTorch Forecasting, Prophet, and SARIMAX; feature engineering, training workflows, and temporal model validation.
  • Data science & statistics: time-series analysis, regression, residual diagnostics, autocorrelation, prediction intervals, MAE/RMSE/WAPE, and error analysis across operating conditions.
  • Data systems & software: Python and SQL data pipelines, sensor/event-data integration, cloud-warehouse analytics, MTConnect and IO-Link interfaces, and modular forecasting and evaluation scripts.
  • Applied AI & evaluation: LLM classification prompts and an ongoing study of LLM-assisted anomaly verification, threshold calibration, precision–recall tradeoffs, and scenario-based testing.

Company-related projects are documented through curated public summaries. Private data and internal artifacts are excluded; the rotating-equipment example uses synthetic values.

Pinned Loading

  1. Anomaly-Analysis Anomaly-Analysis Public

    An independent, ongoing study of anomaly-detection calibration and LLM verification. Evaluation design, threshold tradeoffs, and scenario-based analysis.

    Python

  2. Demand-Forecasting Demand-Forecasting Public

    Shipment-demand forecasting with Temporal Fusion Transformers and PyTorch Forecasting. Temporal validation, hierarchical features, error analysis, and SARIMAX baseline context.

    Python

  3. Predictive-Maintenance-of-CNC-Machine Predictive-Maintenance-of-CNC-Machine Public

    CNC machine telemetry and coolant-conductivity forecasting with MTConnect, IO-Link, MySQL, and Python. Industrial data integration, residual analysis, and prediction-interval validation.

    Python

  4. Predictive-Maintenance-of-Rotating-Equipments Predictive-Maintenance-of-Rotating-Equipments Public

    An anonymized internship proof of concept in rotating-equipment health and RUL modeling, presented to executive and global engineering leaders. Data integration, Random Forest strategies, and evalu…

    Python