Recognition and Normalization of TimeExpressions : ITC-irst at TERN 2004

This paper presents the Chronos system developed at ITCirst to participate in the English Full Task organized within the TERN 2004 evaluation. Chronos extends the capabilities of a rule-based multilingual (English/Italian) Named Entity Recognition System, allowing for the recognition and normalization of temporal expressions within an input text. To this aim, the system is designed to provide the automatic annotation of textual data with the TIMEX2 tag, which includes attributes for expressing the normalized, intended meaning or value of a broad range of temporal expressions.