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Question Classification Don Metzler. What is the proper name for a female walrus? (animal) What is Nicholas Cage's profession? (bio) What is the population.

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Presentation on theme: "Question Classification Don Metzler. What is the proper name for a female walrus? (animal) What is Nicholas Cage's profession? (bio) What is the population."— Presentation transcript:

1 Question Classification Don Metzler

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4 What is the proper name for a female walrus? (animal) What is Nicholas Cage's profession? (bio) What is the population of Seattle? (cardinal) What caused the Lynmouth floods? (cause-effect-influence) What is the telephone number for the University of Kentucky? (contact info) What time of year do most people fly? (date) What is the name of the art of growing miniature trees? (definition) What is another name for nearsightedness? (disease) What was the name of the famous battle in 1836 between Texas and Mexico? (event) What is the name of a golf course in Myrtle Beach? (facility) What was the most popular toy in 1957? (game) What is the capital of Uruguay? (geo-political entity) What language is mostly spoken in Brazil? (language) What is the tallest mountain? (location) What debts did Qintex group leave? (money) What is the cultural origin of the ceremony of potlatch? (nationality) What is the name of the chocolate company in San Francisco? (organization) What is done with worn or outdated flags? (other) What is the name of Neil Armstrong's wife? (person) What is the most heavily caffeinated soft drink? (product) What is the average weight of a Yellow Labrador? (quantity) What metal has the highest melting point? (substance) What did Shostakovich write for Rostropovich? (work of art)

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6 Overview of Results MethodAccuracy Naïve Bayes 70.33% Support Vector Machine 80.89% Maximum Entropy 81.40%

7 Question Features Syntactic Features –What about length of question? Semantic Features –What other WordNet might be useful? Word/POS Sequences –What about HMMs? OTHER class –What about the clarity score as a feature?

8 Labeled + Unlabeled Data Hand labeling Clustering Web Mining –What queries are likely to retrieve questions? –What can we do to target questions from a specific class?

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