Extending an Information Retrieval System through Time Event Extraction.
Pierpaolo Basile, Annalina Caputo, Giovanni Maria Semeraro, Lucia Siciliani · 2014
Abstract. In this paper we propose an innovative Information Retrieval system able to manage temporal information. The system allows temporal constraints in a classical keyword-based search. Information about temporal events is automat-ically extracted from text at indexing time and stored in an ad-hoc data structure exploited by the retrieval module for searching relevant documents. Our system can search textual information that refers to specific period of times. We perform an exploratory case study indexing all Italian Wikipedia articles. 1