Query Formulation for Prior Art Search - Georgetown University at CLEF-IP 2013
Jiyun Luo, Hui Yang, O Streets Nw · 2013
Abstract. Our group participated in the CLEF-IP 2013 Passage Re-trieval starting from Claims task. We focus on formulating representative queries from various metadata that is embedded in a patent document. We then submit the queries to a state-of-the-art search engine to per-form document level retrieval. For passage level retrieval, we implement a TF-IDF algorithm that calculates the sum of query keywords ’ TF-IDF scores. We submitted six runs, which tested different uses of the metadata and different retrieval algorithms. We find that carefully con-structed structured queries from titles and terms with mid-range IDF values are effective for patent prior art retrieval.