Use Supervise - unsupervised methods for tweet level Contextual semantics
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2017 by IJETT Journal|
|Year of Publication : 2017|
|Authors : Shilpi Goyal, Nirupama Tiwari
Shilpi Goyal, Nirupama Tiwari "Use Supervise - unsupervised methods for tweet level Contextual semantics", International Journal of Engineering Trends and Technology (IJETT), V47(4),222-225 May 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Identifying the sentiments at tweet level based on contextual feature comes under text classification and clustering, an evolving area of wide research with many algorithms had been already proposed. With the recent advancements in the field of text mining there are many new techniques consistently emerging that need to be implemented for text classification in search of a better classifier. In this paper, we propose a lexicon based method that can remove the limitation of Senticircles. In this paper, we modify senticircle in the sense that senticircle tend to assign or update pre-assigned positive sentiments to negative or neutral one. The tweets are first parsed using open NLP, using this part of speech tagging to assign prior polarities. We in turn use partitioning around medoids method to take a sentiment of a term instead of senti-median method. We run evaluations on three datasets, @narendramodi , DeMonetization and #FightAgainstCorruption and shown through results whether our implementation of bag of words with its update sentiment with its strength gives a better performance for text based classification. Results show that the proposed method can achieve an accuracy of 71.34%, 72.98% and 71.37% with SVM, CTree and J48 classifier on datasets.
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Sentiment Analysis, Text Mining, Contextual feature, Twitter, SentiCircles.