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Query Generation for Patent Retrieval with Keyword Extraction based on Syntactic Features

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arxiv 1906.07591 v1 pith:SNT6HOVU submitted 2019-06-18 cs.IR cs.CL

classification cs.IRcs.CL
keywords keywordsclaimsextractedsearchmethodmethodspatentquery
verification ladder T0 review T1 audit T2 compute T3 formal
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This paper describes a new method to extract relevant keywords from patent claims, as part of the task of retrieving other patents with similar claims (search for prior art). The method combines a qualitative analysis of the writing style of the claims with NLP methods to parse text, in order to represent a legal text as a specialization arborescence of terms. In this setting, the set of extracted keywords are yielding better search results than keywords extracted with traditional methods such as tf-idf. The performance is measured on the search results of a query consisting of the extracted keywords.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. FullRecall: A Semantic Search-Based Ranking Approach for Maximizing Recall in Patent Retrieval

    cs.IR 2025-07 reject novelty 4.0 of 10

    A three-phase patent retrieval pipeline achieved 100% recall on five examiner-cited test queries, but the score is driven by post hoc cutoff choices and a candidate set that already contains the target patents.

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