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Clemens Neudecker 4 years ago committed by GitHub
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User_Guide.md
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### Table of contents
[1. Introduction](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#1-introduction)
[2. User Guide](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#2-user-guide)
[3. Annotation Guidelines](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#3-annotation-guidelines)
[2. User Guide](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#2-user-guide)
   [2.1 Technical requirements](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#21-technical-requirements)
   [2.2 Data format](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#22-data-format)
   [2.3 Data preparation](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#23-data-preparation)
   [2.4 Provenance](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#24-provenance)
   [2.5 Keyboard navigation](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#25-keyboard-navigation)
   [2.6 Mouse navigation](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#26-mouse-navigation)
   [2.7 Image support](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#27-image-support)
   [2.8 Saving progress](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#28-saving-progress)
[3. Annotation Guidelines](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#3-annotation-guidelines)
### 1. Introduction
[neath](https://github.com/qurator-spk/neath) is a simple, browser-based tool for editing and annotating text with named entities to produce a corpus for training/testing/evaluation. It can be used to add or correct named entity BIO-tags in a TSV file and to correct the token text or tokenization (e.g. due to OCR/segmentation errors).
@ -81,7 +97,7 @@ No. TOKEN NE-TAG NE-EMB GND-ID url_id left,right,top,bottom
```
#### 2.3 Data preparation
The source data that is used for annotation are OCR results in [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) format. We provide a [Python tool](https://github.com/qurator-spk/page2tsv) that supports the transformation of [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) OCR files into the [TSV format](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#data-format) required for use with [neath](https://github.com/qurator-spk/neath).
The source data that is used for annotation are OCR results in [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) format. We provide a [Python tool](https://github.com/qurator-spk/page2tsv) that supports the transformation of [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) OCR files into the [TSV format](https://github.com/qurator-spk/neath/blob/master/User_Guide.md#22-data-format) required for use with [neath](https://github.com/qurator-spk/neath).
#### 2.4 Provenance
The processing pipeline applied at the Berlin State Library comprises the follows steps:
@ -91,7 +107,7 @@ Layout Analysis & Textline Extraction @[sbb_textline_detector](https://github.co
2. OCR & Word Segmentation
OCR is based on [OCR-D](https://github.com/OCR-D)'s [ocrd_tesserocr](https://github.com/OCR-D/ocrd_tesserocr) which requires [Tesseract](https://github.com/tesseract-ocr/tesseract) **>= 4.1.0**. The [GT4HistOCR_2000000](https://ub-backup.bib.uni-mannheim.de/~stweil/ocrd-train/data/GT4HistOCR_2000000.traineddata) model, which is [trained](https://github.com/tesseract-ocr/tesstrain/wiki/GT4HistOCR) on the [GT4HistOCR](https://zenodo.org/record/1344132) corpus, is used. Further details are available in the [paper](https://arxiv.org/abs/1809.05501).
3. TSV Transformation
A simple [Python tool](https://github.com/qurator-spk/page2tsv) is used for the transformation of the OCR results in [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) to [TSV](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#data-format).
A simple [Python tool](https://github.com/qurator-spk/page2tsv) is used for the transformation of the OCR results in [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) to [TSV](https://github.com/qurator-spk/neath/blob/master/docs/User_Guide.md#22-data-format).
4. Tokenization
For tokenization, [SoMaJo](https://github.com/tsproisl/SoMaJo) is used.
5. Named Entity Recognition

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