Lei Zhang

US Patent:

20130103385, Apr 25, 2013

Filed:

Oct 24, 2011

Appl. No.:

13/280031

Inventors:

Riddhiman Ghosh - Sunnyvale CA, US
Lei Zhang - Chicago IL, US
Mohamed E. Dekhil - Santa Clara CA, US

International Classification:

G06F 17/27

US Classification:

704 9

Abstract:

There is provided a computer-implemented method of performing sentiment analysis. An exemplary method comprises performing a first sentiment analysis on microblogging data based on a method using an opinion lexicon. The method also includes training a classifier using training data from the first sentiment analysis. Additionally, the method includes identifying a new opinion term in the microblogging data by performing a statistical test. The new opinion terms are not in the opinion lexicon. The method also includes identifying new microblogging data based on the new opinion term. Further, the method includes performing a second sentiment analysis on the new microblogging data using the classifier.

US Patent:

20130103386, Apr 25, 2013

Filed:

Oct 24, 2011

Appl. No.:

13/280040

Inventors:

Lei Zhang - Chicago IL, US
Riddhiman Ghosh - Sunnyvale CA, US
Mohamed E. Dekhil - Santa Clara CA, US

International Classification:

G06F 17/27

US Classification:

704 9

Abstract:

There is provided a computer-implemented method of performing sentiment analysis. An exemplary method comprises identifying one or more sentences in a microblog. The microblog comprises an entity. The method further includes identifying one or more opinion words in the sentences based on an opinion lexicon. Additionally, the method includes determining, for each of the sentences, an opinion value for the entity. The opinion value is determined based on an opinion value for each of the opinion words in an opinion lexicon.

US Patent:

20160307114, Oct 20, 2016

Filed:

Feb 16, 2016

Appl. No.:

15/044351

Inventors:

- Houston TX, US
Mohamed E. Dekhil - Santa Clara CA, US
Lei Zhang - Chicago IL, US

International Classification:

G06N 99/00
G06F 17/27
G06F 17/30

Abstract:

There is provided a computer-implemented method of performing sentiment analysis. An exemplary method comprises performing a first sentiment analysis on microblogging data based on a method using an opinion lexicon. The method also includes training a classifier using training data from the first sentiment analysis. Additionally, the method includes identifying a new opinion term in the microblogging data by performing a statistical test. The new opinion terms are not in the opinion lexicon. The method also includes identifying new microblogging data based on the new opinion term. Further, the method includes performing a second sentiment analysis on the new microblogging data using the classifier.