In my previous post about sentiment polarity, I talked about results from Pang et al (2002). One of the conclusions in that paper was that the presence of sentiment words led to better classification results than the frequency of words. In my experiment in that post, I used tf-idf, a frequency-based measure. I ran some [...]
Archive for 30 September 2008
Is presence really better than frequency?
Posted: 30 September 2008 in UncategorizedTags: computational linguistics, machine learning, opinion mining, reproducibility, sentiment analysis, svms
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Smiley Pareidolia
Posted: 30 September 2008 in UncategorizedTags: condensation, ice water, pareidolia, smiley
Pareidolia is the psychological phenomenon where people think they see some significant pattern or image in something random. This may be the face of Elvis in pork chop grease or the face of the Virgin Mary in a once-bitten sandwich. I have a coaster on my desk and an almost unempty glass of ice water, [...]
