ImREAL WP4 Augmented User Model Service.
A suite of machine learning-based services to derive profiles of user groups from YouTube comments on videos in order to help the identification of learning needs and augment learner models.
Polkadot JAM Slides - Token2049 - By Dr. Gavin Wood
You tube Group Profiling Services
1. ImREAL WP4 Augmenting User Models YouTube Services Deriving Social Group Profiles from YouTube for Learner Modelling Presented By: Ahmad Ammari User and Community Modelling School of Computing, University of Leeds, UK [email_address]
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5. Methodology Semantically Enriched Machine Learning Framework Social Media Source: YouTube www.youtube.com Social Content: Public Comments on Uploaded Videos Activity Domain: Job Interviews Objective: Derive Profiles of YouTube User Groups that can help in: 1. Identification of Learning Needs 2. Augmenting Learner Models
9. Deriving the Individual & Group User Profiles TFIDF Weights Of Domain Concepts Demographic Features retrieved from YouTube User Profiles Text Clustering Statistical Destribution C1 C2 C3 … C n Age Gender Location 0.3 0.6 0.9 … 0.4 30 M US 0.8 0.2 0.3 … 0.6 25 M GB 0.4 0.5 0.2 … 0.1 15 F IN
10. Pilot Experiment Data Property Value Number of Job Interview-related YouTube Videos 17 Number of Comments Retrieved 1465 Number of Remaining Comments after Noise Filtration 471 (32%) Number of Unique Comment Authors 393 Comment to Author Ratio 1.20
11. Example Usage 1 Using the Cluster-based Group Profiles to Identify Learning Needs for Similar Learners URL for all Derived Cluster-based Group Profiles: http://wis.ewi.tudelft.nl/imreal/u-sem/YouTubeServices/YouTubeGroupProfiles_files/Clustering_Based_Groups.html
13. Example Usage 2 Using the Demographics-based Group Profiles to Augment Models of Similar Learners URL for Example Demographics-based Group Profiles to augment Models of Four Fictitious Learners: http://wis.ewi.tudelft.nl/imreal/u-sem/YouTubeServices/YouTubeGroupProfiles_files/Demographic_Based_Groups.html
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17. YouTube Services Webpage: http://wis.ewi.tudelft.nl/imreal/u-sem/YouTubeServices/ ImREAL Project: http://imreal-project.eu/ Presented By: Ahmad Ammari User and Community Modelling School of Computing, University of Leeds, UK [email_address] Thank You