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Natalia

PROFILE

Natalia

Worked on the ibm-granite/granite-tsfm repository, developing and refining time-series forecasting and anomaly detection tools over five months. Focused on conformal prediction frameworks, probabilistic post-processing, and adaptive weighting, the work emphasized robust calibration, configurability, and real-time adaptability. Leveraged Python, PyTorch, and Jupyter Notebooks to implement features such as horizon-aware aggregation, online updates, and CUDA-enabled processing. Enhanced data preprocessing, model updating, and statistical modeling to improve predictive accuracy and reliability. Addressed edge-case bugs and improved code readability, ensuring maintainability. The contributions provided a reproducible foundation for anomaly detection workflows and strengthened the reliability of time-series forecasting pipelines.

Overall Statistics

Feature vs Bugs

64%Features

Repository Contributions

40Total
Bugs
5
Commits
40
Features
9
Lines of code
7,579
Activity Months5

Your Network

15 people

Shared Repositories

15

Work History

October 2025

2 Commits

Oct 1, 2025

Month: 2025-10 — ibm-granite/granite-tsfm: stability and maintainability focus in forecasting module. Key features delivered: none this month. Major bugs fixed: Forecast Horizon Alignment Bug fixed by looping up to min(H, N) to prevent index errors when N < H; minor style spacing adjustment inside the same loop for readability. Overall impact: increased robustness and reliability of forecasting calculations, reduced risk of incorrect outputs in edge cases, and improved code readability. Technologies/skills demonstrated: TypeScript, algorithm boundary handling, code readability improvements, commit hygiene, and bug-fix discipline.

September 2025

9 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary for ibm-granite/granite-tsfm: Delivered targeted improvements to probabilistic post-processors and conformal prediction, enhancing calibration stability, outlier handling, and performance for time-series forecasting. Achieved robust data handling, CUDA-enabled weighting, and notebook quality improvements, delivering tangible business value through more reliable uncertainty estimates and faster experimentation.

July 2025

5 Commits • 1 Features

Jul 1, 2025

July 2025 monthly summary for ibm-granite/granite-tsfm: Delivered a reproducible Time-Series Transformer (TTM) conformal anomaly detection workflow and notebook-based demonstration on the TSB-UAD dataset, with integrated anomaly visualization. Consolidated five commits into the feature set, focusing on notebook-based experimentation, data preparation calibration, and forecast generation refinements. Enhanced the conformal prediction module with calibrated outlier scoring and improved interpretation of signed errors. Performed notebook hygiene improvements (cleanup, execution reset, and execution-order adjustments) to ensure reliability and smoother onboarding. Overall, this work strengthens proactive anomaly detection capabilities, shortens iteration cycles for data scientists, and provides a solid, production-ready foundation for monitoring and alerting.

June 2025

11 Commits • 3 Features

Jun 1, 2025

June 2025 summary for ibm-granite/granite-tsfm: Delivered horizon-aware improvements to probabilistic scoring and conformal predictions, enhancing accuracy and configurability across forecast horizons. Implemented horizon-aligned aggregation for PostHocProbabilisticProcessor, introduced adaptive weighting in the conformal toolkit, and preserved temporal characteristics in probabilistic scoring to prevent time-smearing. Expanded testing coverage and refreshed documentation to support production reliability and easier validation. These changes strengthen anomaly detection quality, provide flexible aggregation strategies, and solidify the core conformal logic for scalable deployment.

May 2025

13 Commits • 3 Features

May 1, 2025

May 2025: Delivered configurability and accuracy improvements to the granite-tsfm conformal prediction framework, added Gaussian probabilistic methods support, and enabled online updates with advanced metrics for PostHocProbabilisticProcessor. Focused on API clarity, stability, and test coverage to drive business value through higher-confidence predictive calibration and real-time adaptability.

Activity

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Quality Metrics

Correctness87.2%
Maintainability87.0%
Architecture84.4%
Performance75.8%
AI Usage22.0%

Skills & Technologies

Programming Languages

JSONJupyter NotebookPythonSQLTorch

Technical Skills

Algorithm DevelopmentAnomaly DetectionCode FormattingCode RefactoringConformal PredictionData AggregationData PreprocessingData ProcessingData ScienceDebuggingDeep LearningDocumentationJupyter NotebooksMachine LearningMachine Learning Pipelines

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

ibm-granite/granite-tsfm

May 2025 Oct 2025
5 Months active

Languages Used

PythonSQLTorchJSONJupyter Notebook

Technical Skills

Code RefactoringConformal PredictionData ScienceMachine LearningModel UpdatingProbabilistic Forecasting