Table 2 List of 487 features extracted by our framework
Class | Feature description | No. of features |
|---|---|---|
Network (†) | Number of nodes | 1 |
Number of edges | 1 | |
(*) Strength distribution | 8 | |
(*) In-strength distribution | 8 | |
(*) Out-strength distribution | 8 | |
(*) Distribution of number of nodes in the connected components | 8 | |
Network density of whole and largest connected component | 2 | |
Network assortativity of whole and largest connected component | 2 | |
Mean shortest path length of the largest connected component | 1 | |
User | (*) Sender’s follower count | 8 |
(*) Sender’s followee count | 8 | |
(*) Sender’s number of favorite tweets | 8 | |
(*) Sender’s number of Twitter statuses posted | 8 | |
(*) Sender’s number of lists subscribed to | 8 | |
(*) Originator’s follower count | 8 | |
(*) Originator’s followee count | 8 | |
(*) Originator’s number of favorite tweets | 8 | |
(*) Originator’s number of Twitter statuses posted | 8 | |
(*) Originator’s number of lists subscribed to | 8 | |
Timing | Number of tweets appeared in a given window | 1 |
(*) Time between two consecutive tweets | 8 | |
(*) Time between two consecutive retweets | 8 | |
(*) Time between two consecutive mentions | 8 | |
Content | (*) Number of hashtags in a tweet | 8 |
(*) Number of mentions in a tweet | 8 | |
(*) Number of URLs in a tweet | 8 | |
(*,**) Frequency of POS tags in a tweet | 64 | |
(*,**) Proportion of POS tags in a tweet | 64 | |
(*) Number of words in a tweet | 8 | |
(*) Entropy of words in a tweet | 8 | |
Sentiment | (***) Happiness scores of aggregated tweets | 2 |
(***) Valence scores of aggregated tweets | 2 | |
(***) Arousal scores of aggregated tweets | 2 | |
(***) Dominance scores of single tweets | 2 | |
(*) Happiness score of single tweets | 8 | |
(*) Valence score of single tweets | 8 | |
(*) Arousal score of single tweets | 8 | |
(*) Dominance score of single tweets | 8 | |
(*) Polarization score of single tweets | 8 | |
(*) Entropy of polarization scores of single tweets | 8 | |
(*) Positive emoticons entropy of single tweets | 8 | |
(*) Negative emoticons entropy of single tweets | 8 | |
(*) Emoticons entropy of single tweets | 8 | |
(*) Ratio between positive and negative score of single tweets | 8 | |
(*) Number of positive emoticons in single tweets | 8 | |
(*) Number of negative emoticons in single tweets | 8 | |
(*) Total number of emoticons in single tweets | 8 | |
Ratio of tweets that contain emoticons | 1 |