Before revision: Event detection in social media refers to automatic identification of important information shared in social media platforms on a certain time. Considering the dynamic nature and high volume of data production in  data streams, it is impractical to filter the events manually .
After revision: Event detection in social media refers to automatic identification of important information shared in social media platforms contain rich information which describes the ongoing events. Further, the timeliness associated with these data is capable of facilitating immediate insights. However, considering the dynamic nature and high volume of data production in data streams, it is impractical to filter the events manually .