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164 lines
8.2 KiB
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164 lines
8.2 KiB
Markdown
# neat: named entity annotation tool
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---
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---
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### Table of contents
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[1. Introduction](https://github.com/qurator-spk/neat/blob/master/README.md#1-introduction)
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[2. User Guide](https://github.com/qurator-spk/neat/blob/master/README.md#2-user-guide)
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[2.1 Installation](https://github.com/qurator-spk/neat/blob/master/README.md#21-installation)
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[2.2 Data format](https://github.com/qurator-spk/neat/blob/master/README.md#22-data-format)
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[2.3 Navigation](https://github.com/qurator-spk/neat/blob/master/README.md#23-navigation)
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[2.4 Saving progress](https://github.com/qurator-spk/neat/blob/master/README.md#24-saving-progress)
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[3. Annotation Guidelines](https://github.com/qurator-spk/neat/blob/master/README.md#3-annotation-guidelines)
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### 1. Introduction
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*neat* is a simple, browser-based tool for editing and annotating text with named entities to produce labeled data for training/testing/evaluation. It can be used to add or correct named entity labels and to correct the token text or tokenization (e.g. due to OCR/segmentation errors).
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*neat* is developed at the [Berlin State Library](https://staatsbibliothek-berlin.de/) for data annotation in the [SoNAR-IDH](https://sonar.fh-potsdam.de/) project and the [QURATOR](https://qurator.ai/) project.
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### 2. User Guide
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#### 2.1 Installation
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*neat* runs locally as a pure HTML+JavaScript webpage in your web browser. No additional software needs to be installed, but JavaScript has to be enabled in the browser.
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Clone the repo using ``git clone https://github.com/qurator-spk/neat.git`` or download and extract the [ZIP](https://github.com/qurator-spk/neat/archive/master.zip). Make sure you have ``neat.html`` and ``neat.js`` in the same directory and open ``neat.html`` in a browser. Any fairly recent browser should work, but only Chrome and Firefox are tested.
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#### 2.2 Data format
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The source data we use 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) for the transformation of OCR files in [PAGE-XML](https://github.com/PRImA-Research-Lab/PAGE-XML) into the [TSV format](https://github.com/qurator-spk/neat/blob/master/README.md#22-data-format) used by *neat*.
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The internal data format used by *neat* is based on the format used in the [GermEval2014 ](https://sites.google.com/site/germeval2014ner/data) Named Entity Recognition Shared Task. Text is encoded as one token per line, with name spans in the [IOB2](https://en.wikipedia.org/wiki/Inside%E2%80%93outside%E2%80%93beginning_(tagging)) format as tab-separated values:
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* the first column contains either
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* `#` a comment to indicate the source the sentence is taken from, or
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* ``>=1`` the token position within the sentence, or
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* ``0`` to mark sentence boundaries
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* the second column contains the token ``text``
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* outer entity spans are encoded in the third column ``NE-TAG``
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* embedded entity spans are encoded in the fourth column ``NE-EMB``
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##### Example (simple)
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```tsv
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No. TOKEN NE-TAG NE-EMB
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# https://example.url
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1 Donnerstag O O
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2 , O O
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3 1 O O
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4 . O O
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5 Januar O O
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6 . O O
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0 O O
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1 Berliner B-ORG B-LOC
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2 Tageblatt I-ORG O
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3 . O O
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0 O O
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1 Nr O O
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2 . O O
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3 1 O O
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4 . O O
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0 O O
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1 Seite O O
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2 3 O O
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```
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For our purposes we extend this format by adding these (optional) values:
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* a fifth column for an ``ID`` for the outer ``NE-TAG`` from an authority file (*neat* supports automatic linking for [Wikidata](https://www.wikidata.org) identifiers)
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* column six for use as a variable ``url_id`` for [iiif](https://iiif.io/) Image API support (*neat* supports the embedding of image snippets into its interface to assist data annotation and correction if the PAGE-XML source contains word bounding boxes)
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* columns 7-10 are used for storing ``left,right,top,bottom`` pixel coordinates for the image snippets
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##### Example (full)
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```tsv
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No. TOKEN NE-TAG NE-EMB ID url_id left,right,top,bottom
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# https://example.url/iiif/left,right,top,bottom/full/0/default.jpg
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1 Donnerstag O O - 0 174,352,358,390
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2 , O O - 0 174,352,358,390
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3 1 O O - 0 367,392,361,381
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4 . O O - 0 370,397,352,379
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5 Januar O O - 0 406,518,358,386
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6 . O O - 0 406,518,358,386
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0
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1 Berliner B-ORG B-LOC Q455014 0 816,984,358,388
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2 Tageblatt I-ORG O Q455014 0 1005,1208,360,387
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3 . O O - 0 1005,1208,360,387
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0
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1 Nr O O - 0 1237,1288,360,382
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2 . O O - 0 1237,1288,360,382
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3 1 O O - 0 1304,1326,361,381
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4 . O O - 0 1304,1326,361,381
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0
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1 Seite O O - 0 1837,1926,361,392
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2 3 O O - 0 1939,1967,364,385
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```
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#### 2.3 Navigation
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*neat* can be used both with a [keyboard](https://github.com/qurator-spk/neat#keyboard) or a [mouse](https://github.com/qurator-spk/neat#mouse), but for ergonomic reasons, we strongly recommend the use of below key combinations.
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##### Keyboard
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| Key Combination| Action |
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|:---------|:-------------------------------------------|
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| Left | Move one cell left |
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| Right | Move one cell right |
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| Up | Move one row up |
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| Down | Move one row down |
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| PageDown | Move page down |
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| PageUp | Move page up |
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| Crtl+Up | Move entire table one row up |
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| Crtl+Down| Move entire table one row down |
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|----------|--------------------------------------------|
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| s t | Start new sentence in current row |
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| m e | Merge current row with row above |
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| s p | Create copy of current row |
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| d l | Delete current row |
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|----------|--------------------------------------------|
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| backspace| Set NE-TAG / NE-EMB to ``O`` |
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| b p | Set NE-TAG / NE-EMB to ``B-PER`` |
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| b l | Set NE-TAG / NE-EMB to ``B-LOC`` |
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| b o | Set NE-TAG / NE-EMB to ``B-ORG`` |
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| b w | Set NE-TAG / NE-EMB to ``B-WORK`` |
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| b c | Set NE-TAG / NE-EMB to ``B-CONF`` |
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| b e | Set NE-TAG / NE-EMB to ``B-EVT`` |
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| b t | Set NE-TAG / NE-EMB to ``B-TODO`` |
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| i p | Set NE-TAG / NE-EMB to ``I-PER`` |
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| i l | Set NE-TAG / NE-EMB to ``I-LOC`` |
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| i o | Set NE-TAG / NE-EMB to ``I-ORG`` |
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| i w | Set NE-TAG / NE-EMB to ``I-WORK`` |
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| i c | Set NE-TAG / NE-EMB to ``I-CONF`` |
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| i e | Set NE-TAG / NE-EMB to ``I-EVT`` |
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| i t | Set NE-TAG / NE-EMB to ``I-TODO`` |
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|----------|--------------------------------------------|
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| enter | Edit TOKEN or ID |
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| esc | Close TOKEN or ID edit field without |
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| | application of changes |
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|----------|--------------------------------------------|
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| l a | add one display row |
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| l r | remove on display row (minimum is 5) |
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|----------|--------------------------------------------|
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##### Mouse
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* use mouse wheel to scroll up and down
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* left-click `<<` and `>>` to move 15 rows up or down
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* left-click `O` in the `NE-TAG` or `NE-EMB` column to open a drop-down menu and subsequently select any of the supported NE-Tags to tag a token or change an existing tag
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* left-click the `NE-TAG` or `NE-EMB` column and select `O` to remove a tag
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* left-click the `TOKEN` column to edit the token text
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* left-click the `POSITION` and select `split` from the drop-down menu to create a copy of the current row below
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* left-click the `POSITION` and select `merge` from the drop-down menu to merge the current row with the row above
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* left-click the `POSITION` and select `start-sentence` from the drop-down menu to mark the start of a new sentence
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#### 2.4 Saving progress
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*neat* runs fully locally in the browser. Therefore it can not automatically save any changes you made to disk. You have to use the `Save Changes` button to do so manually from time to time.
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### 3. Annotation Guidelines
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[Annotation Guidelines](https://zenodo.org/record/5116015)
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