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Information Extraction From Automobile Advertisements PowerPoint PPT Presentation


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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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Information extraction from automobile advertisements l.jpg

Information Extraction From Automobile Advertisements

Nipun Bhatia

Rakshit Kumar

Shashank Senapaty


Problem definition l.jpg

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


Dataset issues l.jpg

Dataset & Issues

  • 350 postings from the cars & trucks section in Craigslist.

  • Manually annotated with the attributes.


System diagram l.jpg

System Diagram


Feature selection l.jpg

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


Results l.jpg

Results

Body Classifier

Title Classifier


Example results l.jpg

Example Results


Thank you l.jpg

Thank You!


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