This appendix describes the machine learning methodologies and techniques used in ‘That’s classified! Inventing a new patent taxonomy’.
Appendix to: Stephen D Billington, Alan J Hanna. ‘That’s classified! Inventing a new patent taxonomy’. Industrial and Corporate Change, Volume 30, Issue 3, June 2021, Pages 678–705.
https://doi.org/10.1093/icc/dtaa049