#data-visualization
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Test Campaign Boosts Profit but Needs Funnel Fixes
Test campaign delivers higher revenue ($781,850 vs $758,050) and profit ($704,958 vs $691,232) with stat sig (p~0), higher CTR (10.2% vs 5.1%), but lower ROI (9.3 vs 10.6) and CAC ($4.92 vs $4.41). Scale it while targeting mid-funnel drop-offs.
Momentum Dampens GD Zigzags via Gradient Averaging
On anisotropic loss surfaces (condition number 100), vanilla GD zigzags and takes 185 steps to converge (loss <0.001); momentum with β=0.9 converges in 159 steps by canceling steep-direction oscillations while accelerating flat directions—but β=0.99 diverges.
Stream Parse TaskTrove Dataset for AI Task Insights
Stream multi-GB TaskTrove dataset without full download; parse gzip-compressed tar/zip/JSON binaries to analyze sources, sizes (median p50 KB compressed), filenames, and detect verifiers for RL-ready tasks via multi-signal heuristics.
Parse, Analyze, Visualize Hermes Agent Traces for Fine-Tuning
Extract thoughts/tool calls from Hermes agent dataset with regex parsers; compute stats like avg turns per trajectory, tool frequencies, error rates; visualize patterns; tokenize with assistant-only labels for SFT on Qwen models.
ETL Pipeline Turns Messy HR Data into Star Schema Insights
Build a scalable ETL pipeline to restructure flat HR data into a star schema fact/dimension tables, enabling analysis of manager performance, diversity (60% White, 56.6% female), recruitment channels, and 71% accurate attrition prediction where tenure drives 47% of decisions.