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Information Extraction From Automobile Advertisements

Information Extraction From Automobile Advertisements. Nipun Bhatia Rakshit Kumar Shashank Senapaty. Problem Definition. Craigslist - Rudimentary keyword search. Not a natural way to search for cars. Difficult to efficiently find ads with particular attributes.

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Information Extraction From Automobile Advertisements

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  1. Information Extraction From Automobile Advertisements Nipun Bhatia Rakshit Kumar Shashank Senapaty

  2. Problem Definition • Craigslist - Rudimentary keyword search. • Not a natural way to search for cars. • Difficult to efficiently find ads with particular attributes. • Want structured search over attributes. • Attributes : Make, Model, Price, Year, Mileage, Transmission, PostedBy, Location, Contact

  3. Dataset & Issues • 350 postings from the cars & trucks section in Craigslist. • Manually annotated with the attributes.

  4. System Diagram

  5. Feature Selection • Features: • Title : isPresentLexicon, hasDollar_hasDigit, hasParanthesis, hasDigit, hasApostrophe_hasDigit, PrevLabel, Word • Body :isPresentTrLexicon, isPresentOwLexicon, hasDigit_ hasDash, hasDigit_hasDot, hasDigit_ hasParanthesis, Word_Representation, Neighbor

  6. Results Body Classifier Title Classifier

  7. Example Results

  8. Thank You!

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