[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/docs/treebanks/bg/btb/)

[home](https://md.mova.elamur.ai/free/en/) / [docs](https://md.mova.elamur.ai/free/en/docs/) / [treebanks](https://md.mova.elamur.ai/free/en/docs/treebanks/) / [bg](https://md.mova.elamur.ai/free/en/docs/treebanks/bg/) / UD_Bulgarian-BTB

- [papers.md](https://md.mova.elamur.ai/free/en/docs/treebanks/bg/btb/papers/) — Papers: UD_Bulgarian-BTB

# UD_Bulgarian-BTB

Treebank card from UD release 2.18: metadata and texts come from `UD_Bulgarian-BTB/README.txt`; 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_Bulgarian-BTB](https://md.mova.elamur.ai/free/en/docs/treebanks/bg/btb/papers/); seeds: `seeds/`; converter: `convert.md`.

| Field | Value |
| --- | --- |
| UD name | UD_Bulgarian-BTB |
| Language | Bulgarian (`bg`) |
| Family | IE |
| Treebank code | `bg_btb` |
| UD page | [universaldependencies.org/treebanks/bg btb/index.html](https://universaldependencies.org/treebanks/bg_btb/index.html) |
| License | CC BY-NC-SA 3.0 |
| Genres | news, legal, fiction |
| Text in data | yes |
| Parallel | no |
| In UD since | UD v1.1 |
| Authors | Kiril Simov; Petya Osenova; Martin Popel; Daniel Zeman |
| Contact | [kivs@bultreebank.org](mailto:kivs@bultreebank.org), [petya@bultreebank.org](mailto:petya@bultreebank.org) |
| 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 | manual native |
| 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 | 8 907 | 124 336 | 124 336 | 0 | 0 |
| dev | 1 115 | 16 089 | 16 089 | 0 | 0 |
| test | 1 116 | 15 724 | 15 724 | 0 | 0 |
| **total** | 11 138 | 156 149 | 156 149 | 0 | 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_Bulgarian-BTB is based on the HPSG-based BulTreeBank, created at the Institute of Information and Communication Technologies, Bulgarian Academy of Sciences. The original consists of 215,000 tokens (over 15,000 sentences).
> 
> All the texts were processed automatically at tokenization, morphological and chunk level. Then, the full syntactic analysis were perfomed manually by trained annotators.

## Introduction

> The UD_Bulgarian-BTB consists of 156 149 tokens (11,138 sentences). This subset of BulTreeBank excludes ellipses and some rare phenomena. The conversion was done semi-automatically by Kiril Simov, with the application of set of rules and constraints for result consistency.
> 
> The rest of the sentences will be converted for the next releases. The original version is freely available for research upon request.

- [↑ back to Bulgarian (bg) — UD 2.18 treebanks](https://md.mova.elamur.ai/free/en/docs/treebanks/bg/)