TY - JOUR T1 - Multi-Level Tweets Classification and Mining using Machine Learning Approach AU - Ahad, Abdul AU - Babu Yalavarthi, Suresh AU - Hussain, Ali JO - Journal of Engineering and Applied Sciences VL - 13 IS - 11 SP - 3907 EP - 3915 PY - 2018 DA - 2001/08/19 SN - 1816-949x DO - jeasci.2018.3907.3915 UR - https://makhillpublications.co/view-article.php?doi=jeasci.2018.3907.3915 KW - SVM KW -Sentiment analysis KW -KNN KW -isolation KW -machine learning KW -analytical AB - Sentiment analysis comes under study within natural language processing. It helps in finding the sentiment or opinion hidden within a text. This research focuses on finding sentiments for twitter data as it is more challenging due to its unstructured nature, limited size, use of slangs, misspells abbreviations, etc. Most of the researchers dealt with various machine learning approaches of sentiment analysis and compare their results but using various machine learning approaches in combination have been underexplored in the literature. This research has found that various machine learning approaches in a hybrid manner gives better result as compared to using these approaches in isolation. Moreover, as the Tweets are very raw in nature, this research makes use of various preprocessing steps, so that, we get useful data for input in machine learning classifiers. This research basically focuses on two machine learning algorithms K-Nearest Neighbours (KNN) and Support Vector Machines (SVM) in a hybrid manner. The analytical observation is obtained in terms of classification accuracy and F-measure for each sentiment class and their average. The evaluation analysis shows that the proposed hybrid approach is better both in terms of accuracy and F-measure as compared to individual classifiers. ER -