twitter - The use of Textblob for multiple domain tweets for sentiment -

i'm building application analyze sentiment news-related tweets in different domains, such sports, disaster , technology, i'm using textblob default mode (patternanalyzer). provide sentiment though domains different? , how can evaluate performance? or better provide own training data each domain , train classifier?

textblob basic sentiment predictor , wont accurate. basic training model trained on movie-review dataset wont work efficiently you. suggest create different datasets each, if possible.