What is Melita?
Melita is an ontology-based demonstrator for text annotation. The goal of Melita is not to produce a further annotation interface, but a demonstrator of how it is possible to actively interact with the IE system in order to meet the requirements of timeliness and tunable intrusiveness ([Ciravegna et al., 2002a]). Timeliness refers to the time lag between the moment in which annotations are inserted by the user and the moment in which they are learnt by the Information Extraction system. Normally this happens sequentially in a batch. The Melita system implements an intelligent scheduling in order to keep timeliness to the minimum or practically non-existant in learning without increasing intrusiveness. The Intrusiveness refer to the suggestions which the IE system gives to the user in order to help reduce the burden of annotating tags. Melita is very similar in spirit to MnM (Vargas-Vera et al., [2002]), Ontomat (Handschuh et al., [2002]) and the Gate annotation tool (Cunningham et al.,
