Stage 1: Corpus Preparation

Collect, organise and document raw corpus material before any linguistic processing takes place.

Purpose: Stage 1 prepares the raw corpus material. It does not produce CEFR labels.

What happens in this stage?

Raw corpus files are collected, checked, documented and placed into the agreed Google Drive folder structure. This stage ensures that later processing steps know where each text came from, what language it belongs to, and what restrictions apply to its use.

Inputs

InputDescriptionStored where?
Raw corpus files Original text files or corpus exports for English, French, Spanish, German and Czech. Drive/data/raw/{lang}/corpus_original/
Metadata Information about source, language, date, register, corpus origin and processing notes. Drive/data/raw/{lang}/metadata/
Licensing notes Notes on what can and cannot be redistributed. Drive/data/raw/{lang}/licensing/

Example

FieldExample value
languageen
source_fileen_news_2024_part001.txt
sentenceCould you send me the report by Friday?
sentence_iden_00018452
registerweb_or_news

Outputs

The output is not a final dataset. The main output is a clean, documented corpus folder ready for processing.

Checks and risks

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