Section 01

Training Infrastructure

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Shrinking a 46-Hour Training Run

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GPU Utilization Bottlenecked by Data Loading

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Multiple Teams Competing for GPUs

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Checkpoint and Resume After Failure

Section 02

Experiment Tracking & Reproducibility

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Same Code, Different Results

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Untraceable Hyperparameters

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Hundreds of Untraceable Experiments

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Reproducing a Six-Month-Old Model

Section 03

Model Evaluation & Validation

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Aggregate Accuracy Hides a Segment Regression

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Undeployable Despite Good Offline Metrics

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Release Without a Champion Comparison

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Data Leakage Inflates the Eval Score