A Large-scale Dataset of (Open Source) License Text Variants - Département Informatique et Réseaux Access content directly
Conference Papers Year : 2022

A Large-scale Dataset of (Open Source) License Text Variants


We introduce a large-scale dataset of the complete texts of free/open source software (FOSS) license variants. To assemble it we have collected from the Software Heritage archive-the largest publicly available archive of FOSS source code with accompanying development history-all versions of files whose names are commonly used to convey licensing terms to software users and developers. The dataset consists of 6.5 million unique license files that can be used to conduct empirical studies on open source licensing, training of automated license classifiers, natural language processing (NLP) analyses of legal texts, as well as historical and phylogenetic studies on FOSS licensing. Additional metadata about shipped license files are also provided, making the dataset ready to use in various contexts; they include: file length measures, detected MIME type, detected SPDX license (using ScanCode), example origin (e.g., GitHub repository), oldest public commit in which the license appeared. The dataset is released as open data as an archive file containing all deduplicated license files, plus several portable CSV files for metadata, referencing files via cryptographic checksums.
Fichier principal
Vignette du fichier
main.pdf (537.48 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03624198 , version 1 (31-03-2022)



Stefano Zacchiroli. A Large-scale Dataset of (Open Source) License Text Variants. The 2022 Mining Software Repositories Conference, May 2022, Pittsburgh, Pennsylvania, United States. ⟨10.1145/3524842.3528491⟩. ⟨hal-03624198⟩
639 View
264 Download



Gmail Facebook X LinkedIn More