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Rosa I. Arriaga

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PARQR: Automatic Post Suggestion in the Piazza Online Forum to Support Online StudentsLearning at Scale 20202020-08-12
PARQR augments Piazza with a real‑time recommender that parses a draft post, shows similar threads with metadata (follow-ups, age, week), and adds a TA…
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Facebook in Venezuela: Understanding Solidarity Economies in Low-Trust EnvironmentsCHI 20182018-04-21
Study of 21 interviewees from three Facebook bartering groups (≈45,000, 8,000, 1,500 members) shows Venezuelans appropriating Facebook to barter diapers and…
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