Combining natural language processing techniques and algorithms LSA, word2vec and WMD for technological forecasting and similarity analysis in patent documents

João Marcos de Rezende · Izabella Martins da Costa Rodrigues · Leandro Colombi Resendo · Karin Satie Komati

17 citations0/0 files storedTechnology Analysis and Strategic Management

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Intellectual Property and Patents Topic Modeling Computational and Text Analysis Methods

Abstract

Keyword search is the most ordinary tool in patent offices; however, for more advanced research, free software is not presented on their websites. Thus, this paper has the purpose to provide a data-mining framework for patent documents, linking the natural language processing techniques and data analysis algorithms. The system has two main goals: the analysis of technological prospection and the evaluation of similarities among patents through titles and abstracts. For numerical experiments, we used the base of the US Patent and Trademark Office, with over a million documents. Analysing patents about TFT-LCD, Flash Memory and PDA, from 2010 to 2018, with S-Curve it was observed that the last two technologies decline. Using a cloud of words, it was possible to see the phone’s evolution, from 2010 to 2015. To evaluate the degree of similarity among patents, we investigated Latent Semantic Analysis (LSA), Word2vec, Word Mover’s Distance (WMD), in three different study cases. In addition, these methods were compared with the classical Jaccard index. Numerical results show that LSA and WMD obtained similar patent indications, and the Jaccard index presented different indications from the other three.

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References

2017Text matching to measure patent similarity 2018The state-of-the-art on Intellectual Property Analytics (IPA): A literature review on artificial intelligence, machine learning and deep learning methods for analysing intellectual property (IP) data 2015Forecasting technology success based on patent data 2017Applying LSA text mining technique in envisioning social impacts of emerging technologies: The case of drone technology 2003Patinformatics: Tasks to tools 2018Photovoltaic technologies: Mapping from patent analysis 2020Navigating a product landscape for technology opportunity analysis: A word2vec approach using an integrated patent-product database 2018Exploring Technological Trends in Logistics: Topic Modeling-Based Patent Analysis

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