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Events for May 09, 2014

• May

  09

  NL Seminar-

  Fri, May 09, 2014 @ 03:00 PM - 04:00 PM

  Information Sciences Institute

  Conferences, Lectures, & Seminars

  
  

  Speaker: Aram Galstyan, USC/ISI
  
  Talk Title: Deciphering Social Interactions from Text
  
  Series: Natural Language Seminar
  
  Abstract: Studies of social systems have traditionally focused on analyzing various structural properties of networks induced by social communication, while ignoring the content of communication. Despite recent advances, language-based analysis of social processes is still a challenging problem due to the lack of sound mathematical frameworks and adequate computational methods for extracting and analyzing useful social signals from unstructured text. Here I will describe our recent work on content-based analysis of social interactions, which involves two main steps: (a) Embedding communication content in an abstract content space, so that a sequence of textual exchanges is represented as trajectories in this space; and (b) Applying tools from information theory and dynamical systems to discover and characterize directional correlations among those trajectories. I will briefly describe the main elements of the technical approach, and demonstrate the usefulness of the proposed framework on two case studies: content-based characterization of social influence, and stylistic coordination in dialogues.
  
  
  
  Biography: Aram Galstyan is a Project Leader at the USC Information Sciences Institute and a Research Assistant Professor at the USC Computer Science Department. His current research focuses on characterizing and predicting behavior of dynamic networks using information–theoretic concepts. His other research interests include developing statistical–physics based approaches for understanding fundamental limits of various inference algorithms and characterizing the performance of those algorithms with respect to stability and robustness
  
  Host: Aliya Deri and Kevin Knight
  
  More Info: http://nlg.isi.edu/nl-seminar/
  
  

  Location: Information Science Institute (ISI) - 11th Flr Conf Rm # 1135, Marina Del Rey

  Audiences: Everyone Is Invited

  Contact: Peter Zamar

  Event Link: http://nlg.isi.edu/nl-seminar/