In this paper, we follow a commonly accepted definition of rumour, that it is an unverified statement, circulating from person to person and pertaining to an object, event, or issue of public concern and it is circulating without known authority for its truthfulness at the current time, but it may turn out to be true, or partly or entirely false; alternatively, it may also remain unresolved (Peterson and Gist, 1951;Zubiaga et al., 2018).
our aim is to identify rumours as early as possible, while keeping a reasonable detection accuracy.