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NLP Final Project

NLP Final Project. Information Extraction of Automobile A dvertisements from “craigslist”. Baishun Wu WUBS@UMICH.EDU. Agenda. Motivation Implementation Result & Summary. Motivation.

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NLP Final Project

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  1. NLP Final Project Information Extraction of Automobile Advertisements from “craigslist” Baishun Wu WUBS@UMICH.EDU

  2. Agenda • Motivation • Implementation • Result & Summary

  3. Motivation “Craigslist” is an awesome resource for car advertisements, but it is really tough to search when compare to other websites.

  4. Search Engine From “Autotrader.com”

  5. Search Engine From “Craigslist”

  6. Implementation • Built data base for make, model, etc • Key word searching • Processed numbers

  7. Email • wwalxxx@gmail DOT com • call Kim @ 901-xxx-xxxx • Dunyxxxx@gmail.com

  8. Phone Numbers • 734-four-7-five 2-nine -5-one • 313-443-6696

  9. Price & Mileage • $25500 • 25,xxx • $25k • $25 k

  10. When Numbers Are Mixed in an Ad… “2003chevrolet Corvette Z0650th anniversary. - $24900 (Downriver) This is great American muscle car; I have owned this car for past three years. For you all you Corvette lovers I don't have to explain what this machine can do on the road. Year 2003 Color: Yellow Transmission: Manual Interior: Black Miles: 31xxx If you have any questions, I can be reached at 734 six two four 0 seven 3 seven.\n”

  11. Result & Summary • Conducted “IE” on 100 ADs • Some of the ADs do not have mileage info • Accuracy rate is 82% • If ONLY used ADs with mileages info, accuracy rate is 90%

  12. ADs that are confusing to program 2000 Isuzu rodeo ls 4x4 v6 -­‐ $3700 (Dearborn heights) Great SUV for winter 110k , I owned this Vehicle for 11 years , oil change Always on time Everything runs perfectly New tires New brakes new battery new exhaust , Engine was rebuilt at the dealer at 65K miles so technically engine has 45k only , Very clean car none smoker Power doors power windows moonroof ,Remote starter, Vehicle need nothing, please call 313-443-6696

  13. ADs that are confusing to program 2007 gmcyukon xl - $19995 (detroit mi) you do not need credit or necessarily have to have a job to finance a vehicle from us. we accept all types of provable income financing available please contact us 313-499-8335 for further information leagcy motors 16850 e 8 mile rddetroit mi 48205

  14. ADs that are confusing to program bentleyarnage r - 2007 9,600 miles - $104900 (saginaw, michigan) powered by leaflet — terms gratiot at center beautiful, low miles, serviced, window sticker of $276,942, numerous options. virtually new for a fraction of the original price. please, serious inquiries only. asking $104,900 or make offer.

  15. ADs that are confusing to program 2005 chevy corvette under 12,000 miles - $300000 (birmingham) this corvette is very clean and only has 11,082 miles on it. it is lemans blue with black interior. 6 speed trans, optional polished wheels and z51 (brake, trans & susppkg) the only mods done are a corsa sport exhaust and airraid air intake please email me with any questions

  16. Thank You! The End

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