Statistical Foundations for a Google Play User-Review Sentiment Index: Signal Fusion, Shrinkage, Distributional Validation, and Dynamic Smoothing

arXiv:2609.31513 · stat.ME, cs.CL, stat.AP · Submitted 2026-09-25 · Read on arXiv

stat.ME, cs.CL, stat.AP

Submitted: 2026-09-25

Updated: 2026-10-04

Code: https://github.com/JoMingyu/google-play-scraper

Terminology

• Aggregation — 4× in this paper · explained in 1 episode
• Selection Bias — 2× in this paper · explained in 4 episodes
• Benchmark — 1× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Fisher Information — 1× in this paper · explained in 3 episodes

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