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Simple vs. sophisticated approaches for patent prior-art search

Magdy, Walid and Lopez, Patrice and Jones, Gareth J.F. (2011) Simple vs. sophisticated approaches for patent prior-art search. In: Advances in Information Retrieval - ECIR 2011, 18-21 April 2011, Dublin, Ireland.

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Patent prior-art search is concerned with finding all filed patents relevant to a given patent application. We report a comparison between two search approaches representing the state-of-the-art in patent prior-art search. The first approach uses simple and straightforward information retrieval (IR) techniques, while the second uses much more sophisticated techniques which try to model the steps taken by a patent examiner in patent search. Experiments show that the retrieval effectiveness using both techniques is statistically indistinguishable when patent applications contain some initial citations. However, the advanced search technique is statistically better when no initial citations are provided. Our findings suggest that less time and effort can be exerted by applying simple IR approaches when initial citations are provided.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Uncontrolled Keywords:prior-art; patent; prior-art patent searching
Subjects:Computer Science > Information retrieval
DCU Faculties and Centres:Research Initiatives and Centres > Centre for Next Generation Localisation (CNGL)
DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing
Published in:Advances in Inofrmation Retrieval. Lecture Notes in Computer Science 6611. Springer-Verlag.
Official URL:
Copyright Information:© 2011 Springer-Verlag. The original publication is available at
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:16396
Deposited On:29 Jun 2011 15:06 by Shane Harper. Last Modified 29 Jun 2011 15:06

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