Figure 1 tweets for each query. This work has broad application to those interested in sentiment analysis and those who want to know how it can be applied in other fields to generate knowledge from SMM. From a methodological standpoint, this work may hold interest for librarians working at special libraries, subject librarians and researchers interested in new techniques for evaluating large corpus of textual data; and for those who have a keen perspective to know the attitude and emotion of public on an international social platform in relation to different facets of productivity. Moreover, this study may prove useful for government and other decision- making agencies to study the attitude and emotions of the ibraries, subject librarians and researchers interested in new