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Novel data structure and visualization tool for studying technology evolution based on patent information: The DTFootprint and the TechSpectrogram

Perez-Molina, Eduardo and Loizides, Fernando 2021. Novel data structure and visualization tool for studying technology evolution based on patent information: The DTFootprint and the TechSpectrogram. World Patent Information 64 , 102009. 10.1016/j.wpi.2020.102009

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Abstract

We introduce a new, bespoke data structure to analyze and visualize the evolution of a technology. The technology under analysis is defined by a set of patents corresponding to a technical field, owned by a company or invented by a team of research. Our data structure, the Dynamic Technology Footprint –DTFootprint–, facilitates the analysis and visualization of trends and dynamics of a given technology, and therefore the evolution of a technical field, a company, or a team of people. A graphical tool based on our data structure is defined, it is named Technology Spectrogram –TechSpectrogram–, because it is inspired by the acoustic frequency spectrograms: as the acoustic frequency spectrograms visualize the dynamics of an acoustic wave showing the evolution of its frequency components our tool shows the dynamics of a technology showing the evolution of its technological components, which are represented by the whole set of IPC-codes. Our graphical tool, the TechSpectrogram is shown for some study cases, and its application to the history of technology and technology management are disclosed.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Publisher: Elsevier
ISSN: 0172-2190
Date of First Compliant Deposit: 7 December 2020
Date of Acceptance: 11 November 2020
Last Modified: 10 Oct 2021 11:01
URI: http://orca.cardiff.ac.uk/id/eprint/136802

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