sentiment

Data polarity data 20

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: source, or complex aftude types Dan Jurafsky Sen%ment Analysis •  Simplest task: •  Is the aftude of this text posi+ve or nega+ve? •  More complex: •  Rank the aftude of this text from 1 to 5 •  Advanced: •  Detect the target, source, or complex aftude types Sentiment Analysis What is Sen+ment Analysis? Sentiment Analysis A Baseline Algorithm Dan Jurafsky Sentiment Classification in Movie Reviews Bo Pang, Lillian Lee, and Shivakumar Vaithyanathan. 2002. Thumbs up? Sen+ment Classifica+on using Machine Learning Techniques. EMNLP ­2002, 79—86. Bo Pang and Lillian Lee. 2004. A Sen+mental Educa+on: Sen+ment Analysis Using Subjec+vity Summariza+on Based on Minimum Cuts. ACL, 271 ­278 •  Polarity detec+on: •  Is an IMDB movie review posi+ve or nega+ve? •  Data: Polarity Data 2.0: •  hXp://www.cs.cornell.edu/people/pabo/movie ­review ­data Dan Jurafsky IMDB data in the Pang and Lee database ✓ when _star wars_ came out some twenty years ago , the image of traveling throughout the stars has become a commonplace image . […] when han solo goes light speed , the stars change to bright lines , going towards the viewer in lines that converge at an invisible point . cool . _october sky_ offers a much simpler image–that of a single white dot , traveling horizontally across the night sky . [. . . ] ✗ “ snake eyes ” is the most aggrava+ng kind of movie : the kind that shows so much poten+al then becomes unbelievably disappoin+ng . it’s not just because this is a brian depalma film , and since he’s a great director and one who’s films are always greeted with at least some fanfare . and it’s not even because this was a film starring nicolas cage and since he giv...
View Full Document

This document was uploaded on 02/14/2014.

Ask a homework question - tutors are online