Lecture 12-More Recursion - CS1110 lec 12: Analysis of lies...

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1 CS1110 lec 12: Analysis of lies using recursion 07 Oct 2010 Prelim, 7:30-9pm today Last name A-K: go to Olin 155 Last name L-Z: go to Olin 255 A4 due Saturday Oct. 16 No labs next week (Tue-Wed Oct 11-12), due to fall break No office/consulting hours Friday through Tuesday inclusive (Oct 8-12), due to fall break Reading for next lecture (casting about): Secs 4.2 & 4.3 Have your iClickers out. Today: recursion in an interdisciplinary application: computer science/computational linguistics, psychology, history/politics
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2 Lies, damned lies, and statistics James Pennebaker et al., “Lying words: predicting deception from linguistic styles”, 2003: Claim: deceptive communication is characterized by (among others): fewer 1 st -person singular and 3rd-person pronouns (“I”, “they”) more negative emotion words (“hate”, “enemy”) fewer “complex/exclusive” words (“but”, “except”, “without”) Research question (1): What really are the best cues? (or models) Sub-question: is there a more realistic, convenient source of “lies”? The “Iraq War Card False Statements Database” http://projects.publicintegrity.org/WarCard/Search/Default.aspx
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3 Where we are, and why [besides automatic lie detection being inherently cool] Research question 1: What are the best linguistic lie cues (or models)?
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Lecture 12-More Recursion - CS1110 lec 12: Analysis of lies...

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