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CS583, UIC

CS583, UIC

Identify opinion orientation on feature

For each feature, we identify the sentiment or opinion orientation expressed by a reviewer.

We work based on sentences, but also consider,

A sentence can contain multiple features.

Different features may have different opinions.

E.g., The battery life and picture quality are great (+), but the view founder is small (-).  

Almost all approaches make use of opinion words and phrases. But notice again:

Some opinion words have context independent orientations, e.g., “great”.

Some other opinion words have context dependent orientations, e.g., “small”

Many ways to use them.

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