Statistical Foundations for a Google Play User-Review Sentiment Index: Signal Fusion, Shrinkage, Distributional Validation, and Dynamic Smoothing
A statistical specification for whether valence among the users who write reviews of an app has changed enough to warrant investigation of a release, outage, or support issue is proposed, applied to written Google Play reviews collected under a declared locale, language, sort order, retrieval cap, and window rule.
Marco C. Mandap
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