Opinion Mining Exercises Feiyu Xu DFKI December 14, 2011 12/20/11 - - PowerPoint PPT Presentation

opinion mining
SMART_READER_LITE
LIVE PREVIEW

Opinion Mining Exercises Feiyu Xu DFKI December 14, 2011 12/20/11 - - PowerPoint PPT Presentation

Opinion Mining Exercises Feiyu Xu DFKI December 14, 2011 12/20/11 Language Technology I 1 Interesting Web sites for OM Epinions http://www.epinions.com/ 12/20/11 Language Technology I 3 Digimind


slide-1
SLIDE 1

12/20/11 Language Technology I 1

Opinion Mining

Exercises

Feiyu Xu

DFKI December 14, 2011

slide-2
SLIDE 2

Interesting Web sites for OM

slide-3
SLIDE 3

Epinions

  • http://www.epinions.com/

12/20/11 Language Technology I 3

slide-4
SLIDE 4

Digimind

  • http://www.digimind.com/watch-digimind-in-action

12/20/11 Language Technology I 4

slide-5
SLIDE 5

What the trend: Trend monitoring

  • http://whatthetrend.com/
slide-6
SLIDE 6

Reviews on “Das Leben der Anderen” @ imdb

slide-7
SLIDE 7

Reviews on “Das Leben der Anderen” @ imdb

slide-8
SLIDE 8

Top 250 movies voted by imdb users

slide-9
SLIDE 9

QUESTIONS

12/20/11 Language Technology I 9

slide-10
SLIDE 10

What are the components of an Opinion

  • Opinion holder (source)

– The person or organization that holds a specific opinion

  • n a particular object/target
  • Opinion target

– A product, person, event, organization, topic or even an

  • pinion
  • Opinion content

– A view, attitude, or appraisal on an object from an opinion holder.

  • Polarity

– Orientations of sentiments expressed in an opinion, e.g., positive, negative or neutral

12/20/11 Language Technology I 10

slide-11
SLIDE 11

What are the subtasks of Opinion Mining

  • Subjectivity classification
  • Polarity classification
  • Opinion extraction

12/20/11 Language Technology I 11

slide-12
SLIDE 12

Please show at least two methods for acquisition

  • f sentiment word lexicons
  • conjunctions
  • semantic orientation via PIM
  • similar glossary description

12/20/11 Language Technology I 12

slide-13
SLIDE 13

12/20/11 Language Technology I 13