[Dmbu-l] Data Seminar

Harshal Chaudhari harshal at bu.edu
Thu Oct 6 16:49:58 EDT 2016

*Data Seminar*
*Modeling the Dynamics of Online Learning Activity*
*Charalampos Mavroforakis, BU*

*Friday, October 7, 2016 at 10:30am in Hariri Fishbowl Conference Room*

*Speaker: *Charalampos Mavroforakis, BU http://cs-people.bu.edu/cmav/

*Title: *Modeling the Dynamics of Online Learning Activity

*Abstract: *People are increasingly relying on social media and the Web to
find solutions to their problems in a wide range of domains. Closely
related problems often lead people to the same characteristic learning
pattern, which is expressed by visiting related pieces of information,
performing almost identical sequences of queries or, more generally, taking
a series of similar actions.

In this talk, we introduce a novel modeling framework for clustering
continuous-time grouped streaming data, the Hierarchical Dirichlet Hawkes
process (HDHP). This model allows us to automatically uncover a wide
variety of learning patterns from detailed traces of online learning
activity. Experiments on real data gathered from Stack Overflow reveal that
our framework can recover meaningful learning patterns in terms of both
content and temporal dynamics, as well as track users' interests and goals
over time.

Harshal Chaudhari
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