# Attribution and licenses

## Original paper

- **Title:** The individual dynamics of affective expression on social media
- **Authors:** Max Pellert, Simon Schweighofer, David Garcia
- **Published:** EPJ Data Science 9, article 1 (2020)
- **DOI:** https://doi.org/10.1140/epjds/s13688-019-0219-3
- **Copyright:** © The Author(s) 2020
- **License:** Creative Commons Attribution 4.0 International (CC BY 4.0), https://creativecommons.org/licenses/by/4.0/

The PDF in `original/` is reproduced unchanged. The publisher's article page and the PDF itself state that the article is licensed under CC BY 4.0.

## Processed and derivative notes

The Markdown notes are adaptations of the paper created with PaperRoach and a local Ollama model, followed by a public source-review pass. They are distributed under CC BY 4.0. Appropriate credit, a link to the source, the license, and a description of changes are provided here and in each reviewed note.

Changes include removing local-only metadata, correcting formula transcription and classification errors, narrowing causal language, and adding an explicit limitations section. See `CHANGELOG.md` for details.

The machine-generated drafts are included only to make the transformation inspectable. Their warnings and error states are part of the public record.

## Software

PaperRoach source code is licensed separately under the MIT License. The MIT license does not replace or relicense the CC BY 4.0 paper or its adapted notes.

## Underlying study data

The Facebook/MyPersonality dataset analyzed by the authors is not included in this bundle. The bundle contains the published article and PaperRoach-created text artifacts only.