AlvisAE: a collaborative Web text annotation editor for knowledge acquisition

AlvisAE is a text annotation editor aimed at knowledge acquisition projects. An expressive annotation data model allows AlvisAE to support various knowledge acquisition tasks like construction gold standard corpus, ontology population and assisted reading. Collaboration is achieved through a workflow of tasks that emulates common practices (e.g. automatic pre-annotation, adjudication). It is implemented as a Web application requiring no installation by the end-user, thus facilitating the participation of domain experts. AlvisAE is used in several knowledge acquisition projects in the domains of biology and crop science.