YouEDU Staging Intelligent Interventions in MOOC Discussion Forums Akshay Agrawal Jagadish...

YouEDU

Staging Intelligent Interventionsin MOOC Discussion ForumsAkshay AgrawalJagadish VenkatramanShane LeonardAndreas Paepcke

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An Intelligent Forum

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An Intelligent Forum

• Phase 1: Detect Confusion

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An Intelligent Forum

• Phase 1: Detect Confusion• Phase 2: Intervene Automatically

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Challenges

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Challenges

• Scale:

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Challenges

• Scale:

• Vocabulary of confusion is domain-dependent

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Challenges

• Scale:

• Vocabulary of confusion is domain-dependent

• TA overloaded

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Challenges

• Scale:

• Vocabulary of confusion is domain-dependent

• TA overloaded– lack of forum structure

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• No tagged forum datasets• Availability of large-scale forum data

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Why are forums still dumb?

YouEDU

• Pre-work: Dataset– Stanford MOOCPosts

• Phase 1: Confusion Detection– Classify individual posts w.r.t. confusion

• Phase 2: Intervention–Map confused posts to video snippets

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MOOCPosts Dataset

• 30,000 posts,11 courses– Humanities/Sciences, Medicine,

Education

• Human-coded, 6 dimensions– confusion, sentiment, urgency [1-7]– opinion, question, answer [0/1]

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http://datastage.stanford.edu/StanfordMoocPosts/

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Phase 1: Detecting Confusion

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Classifier Performance

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Recap: Phase 1

Phase 2: Staging Interventions

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Interventions: Evaluation

• 20 confused posts, course in statistics

• Six recommendations for each– randomize order

• 3 human raters– Label each snippet as relevant or

irrelevant

• k-precision– precision of retrieved documents,

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YouEDU Architecture

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Classification Suitehttp://github.com/akshayka/edxclassify

MOOCPosts Datasethttp://datastage.stanford.edu/StanfordMoocPosts/

Contactakshayka@cs.stanford.edu

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