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- [papers.md](https://md.mova.elamur.ai/free/en/docs/treebanks/fr/sequoia/papers/) — Papers: UD_French-Sequoia

# UD_French-Sequoia

Treebank card from UD release 2.18: metadata and texts come from `UD_French-Sequoia/README.md`; size is counted by streaming the `.conllu` files and checked against the release `stats.xml`. Generated by `tools/treebanks build`; do not edit by hand. Papers: [Papers: UD_French-Sequoia](https://md.mova.elamur.ai/free/en/docs/treebanks/fr/sequoia/papers/); seeds: `seeds/`; converter: `convert.md`.

| Field | Value |
| --- | --- |
| UD name | UD_French-Sequoia |
| Language | French (`fr`) |
| Family | IE |
| Treebank code | `fr_sequoia` |
| UD page | [universaldependencies.org/treebanks/fr sequoia/index.html](https://universaldependencies.org/treebanks/fr_sequoia/index.html) |
| License | LGPL-LR |
| Genres | wiki, medical, news, nonfiction |
| Text in data | yes |
| Parallel | no |
| In UD since | UD v2.0 |
| Authors | Marie Candito; Djamé Seddah; Guy Perrier; Bruno Guillaume |
| Contact | [bruno.guillaume@inria.fr](mailto:bruno.guillaume@inria.fr) |
| Development | outside the UD repo (elsewhere): fixes go to the source or the converter |

## Annotation layers

| Layer | Origin |
| --- | --- |
| Lemmas | converted from manual |
| UPOS | converted from manual |
| XPOS | not available |
| Features | converted from manual |
| Relations | converted from manual |

UD scale: *manual native* — annotated by hand directly in UD; *converted from manual* — converted from manual annotation in another scheme; *converted with corrections* — converted and partly corrected by hand; *automatic with corrections* — automatic, with partial manual corrections; *automatic* — automatic; *not available* — the layer is absent.

## Size

| Split | Sentences | Tokens | Words | Multiword tokens | Empty nodes |
| --- | --- | --- | --- | --- | --- |
| train | 2 231 | 49 142 | 50 502 | 1 360 | 0 |
| dev | 412 | 9 717 | 9 999 | 282 | 0 |
| test | 456 | 9 734 | 10 044 | 310 | 0 |
| **total** | 3 099 | 68 593 | 70 545 | 1 952 | 0 |

Tokens are surface tokens (Spanish `vámonos` is one), words are syntactic words (`vamos` + `nos`); multiword tokens are those split into several words; empty nodes are the `N.M` nodes of the enhanced graph.

## Summary

> **UD_French-Sequoia** is an automatic conversion of the [SUD_French-Sequoia](https://github.com/surfacesyntacticud/SUD_French-Sequoia) treebank, which comes from the former corpus [French Sequoia corpus](http://deep-sequoia.inria.fr).

## Introduction

> **UD_French-Sequoia** is an automatic conversion of the [SUD_French-Sequoia](https://github.com/surfacesyntacticud/SUD_French-Sequoia) treebank, which comes from the former corpus [French Sequoia corpus](http://deep-sequoia.inria.fr). The French Sequoia corpus was converted in April 2023 to SUD with the Grew rewriting system [described here](https://gitlab.inria.fr/grew/DSQ_SUD). Since this date, the corpus is maintained in SUD and converted to UD.
> 
> ## Origin
> 
> The first version of the Sequoia Corpus was presented in [(Candito & Seddah, 2012)](https://hal-univ-diderot.archives-ouvertes.fr/hal-00698938/).
> 
> ## Splitting
> 
> The whole corpus contains 70,546 tokens in 3,099 sentences.
> 
> In **UD_French-Sequoia**, data were randomly split into:
> 
> - `fr_sequoia-ud-test.conllu`: 10,044 tokens in 456 sentences
> - `fr_sequoia-ud-dev.conllu`: 9,999 tokens in 412 sentences
> - `fr_sequoia-ud-train.conllu`: 50,503 tokens in 2,231 sentences
> 
> ## Genres
> 
> The original sentences of the corpus are taken from:
> 
> - French Europarl (`sent_id` prefix: `Europar.550`)
> - Wikipédia Fr (`sent_id` prefix: `frwiki_50.1000`)
> - Newspaper *Est Républicain* (`sent_id` prefix: `annodis.er`)
> - European Medicines Agency (`sent_id` prefix: `emea-fr-dev` and `emea-fr-test`)

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