Patent Terminlogy Analysis: Passage Retrieval Experiments for the Intellecutal Property Track at CLEF

In 2012, the University of Hildesheim participated in the CLEF-IP claims-to-passage task. 4 runs were submitted and different approaches tested. The tested approaches included a language independent trigram search approach, one approach formulating a query in the source language only and another approach with querys translated to English, German, French and Spanish. The results were not satisfactory and the task of passage retrieval as defined in CLEF-IP proved to be difficult for current technology.