a computational approach to politeness with application to social factors (mizil, jurafsky,...
TRANSCRIPT
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A COMPUTATIONAL APPROACH TO POLITENESS
WITH APPLICATION TO SOCIAL FACTORS
( M i z i l , J u r a f s k y, L e s k o v e c , P o t t s )
Natural Language Processing
By:Sakaar Khurana
Department of Computer Science and Engineering,Indian Institute of Technology, Kanpur
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Abstract
• Computational framework for identifying linguistic aspects of politeness.
• Starting point: A corpus of requests annotated for politeness – evaluate various aspects of politeness theory
• Develop a computational framework for identifying and characterizing politeness marking in REQUESTS (because they involve speaker imposing on addressee – negative politeness – minimizing imposition)
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Politeness Data
• Requests in online communities• Wikipedia community of editors• Stack-exchange community.
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Annotating Data
• Data labelled using AMTs.• Context – Requests with 2 sentences.• Each annotator – 13 requests.• Each request – 5 annotators• Rate between very impolite to very
polite(slider was presented)• Z-score normalization on each annotator
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Data Distribution
• Requests have average of 0 (interesting)• Standard deviation – 0.7• Binary perception – 1st and 4th quartile
have maximum binary consensus among annotators
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Politeness Markers
• Requests exhibiting politeness markers are extracted using regular expression matching on dependency parse by Stanford dependency parser with specialized lexicons
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Predicting Politeness
• Wikipedia – Training set• Stack exchange – Test set• BOW model – SVM with unigram feature
representation• Linguistically informed classifier (Ling.) –
SVM using features in previous table in addition to unigram features.
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Results
• Ling. Model performed 3-4 % better.• Results are within 3% from human
performance
• Hence the theory inspired features are effective and generalize well to new domains.
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Relation to social factors
• Relation to social outcome:
• Politeness and Power:
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Other Work
• Other researches have identified politeness marking across • different text and media types(Herring)• Between social groups(Burke and
Kraut)• This paper had more data which allowed
a fuller survey of different strategies.