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  "documentTitle": "GSX Techedu (GSX)",
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  "notes": "This slide provides empirical evidence to support the classification of 'Type 0' users as students.",
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      "text": "We therefore are highly confident that a Type 0 user is a student.",
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      "text": "We could not discover profiles for Students in the same way that Teachers have profiles. Instead, we turned to reviews that we collected from Genshuixue.com to assist in validating that a Type 0 user is a Student. We collected 948,158 reviews, and from those reviews we discovered 5,789 unique users making reviews in our user activity database that had written 29,245 reviews. Of these a total of 5,787 (99.9%) were student (Type 0) unique reviewers, with just 2 (0.03%) coming from teacher (Type 1) accounts. There were no reviews discovered that were written by a tutor (Type 2) account. We therefore are highly confident that a Type 0 user is a student.",
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