Can you explain how Duolingo implements spaced repetition algorithms for vocabulary retention versus a manual flashcard system?
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The searches the AI actually ran for this prompt.
SEED QUERY
Can you explain how Duolingo implements spaced repetition algorithms for vocabulary retention versus a manual flashcard system?
1 real search · 1 real-search pass
Duolingo spaced repetition algorithm vocabulary review official blog Explain My Answer practice hub smart scheduling 2024 2025Google ↗
OBSERVED
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
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Searches and sources
ChatGPT1 real searches · gpt-6
Duolingo spaced repetition algorithm vocabulary review official blog Explain My Answer practice hub smart scheduling 2024 2025 Google ↗
- Duolingo Blog · blog.duolingo.com
- A Trainable Spaced Repetition Model for Language Learning · research.duolingo.com
- What Is Spaced Repetition, and Why Is It Good for Learning? · blog.duolingo.com