engleski

Temporal Expression Tagging for Croatian Texts

Temporal expression extraction has recently become a popular field of natural language processing. This task consists of locating temporal expressions and normalising them into a canonical form. Recent successes achieved by rule-based temporal taggers, HeidelTime in particular, and a lack of a good temporal tagger for Croatian have inspired the construction of HeidelTime rule set for the Croatian language. Additionally, WikiWarsHR, a corpus of Wikipedia-based historical narratives tagged with TIMEX3, has been developed, both for the purpose of developing the HeidelTime rule set and for future use. Results achieved by the Croatian implementation of HeidelTime are comparable to implementations for other languages, while WikiWarsHR is close in size and density of tags to other publicly available corpora.

TimeML; TIMEX3; rule-based tagging; temporal expression normalisation; natural language processing

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