A feature selection approach for spam detection in social networks using gravitational force-based heuristic algorithm. - Poria Pirozmand; Mehdi Sadeghilalimi; Ali Asghar Rahmani Hosseinabadi; Fatemeh Sadeghilalimi; Seyedsaeid Mirkamali; Adam Slowik (J. Ambient Intell. Humaniz. Comput., 2023)