Kalev Leetaru explains how a new emotion measurement system was created that interprets Twitter streams for sentiments. “In the process, we identified 16 limitations to current sentiment mining approaches.”
– Letter expansions: include words like “loooove” in addition to “love”
– Misspellings
– Hashtags
– Phrases
– Colloquial expressions
– Alternative social usage: understanding Internet slang
– Entity separation: more emotions can be present in one sentence
– Vocabulary
– Creative social-only words
– Extensive conjugations
– Model expansion
– Negation
– Booster words
– Robust grammar
– Language evolution
– Human oversight

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