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README.md

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+---
+license: cc-by-4.0
+task_categories:
+- token-classification
+language:
+- hr
+tags:
+- wikidata
+- wikipedia
+- wikification
+pretty_name: WikiAnc HR
+size_categories:
+- 1M<n<10M
+---
+
+# Dataset Card for WikiAnc HR
+
+## Table of Contents
+- [Dataset Description](#dataset-description)
+  - [Dataset Summary](#dataset-summary)
+  - [Supported Tasks](#supported-tasks)
+  - [Languages](#languages)
+- [Dataset Structure](#dataset-structure)
+  - [Data Instances](#data-instances)
+  - [Data Fields](#data-fields)
+  - [Data Splits](#data-splits)
+- [Additional Information](#additional-information)
+  - [Licensing Information](#licensing-information)
+
+## Dataset Description
+
+- **Repository:** [WikiAnc repository](https://github.com/cyanic-selkie/wikianc)
+
+### Dataset Summary
+
+The WikiAnc HR datasets is an automatically generated dataset from Wikipedia (hr) and Wikidata dumps (March 1, 2023). 
+
+The code for generating the dataset can be found [here](https://github.com/cyanic-selkie/wikianc).
+
+### Supported Tasks
+
+- `wikificiation`: The dataset can be used to train a model for Wikification.
+
+### Languages
+
+The text in the dataset is in Croatian. The associated BCP-47 code is `hr`.
+
+You can find the English version [here](https://huggingface.co/datasets/cyanic-selkie/wikianc-en).
+
+## Dataset Structure
+
+### Data Instances
+
+A typical data point represents a paragraph in a Wikipedia article.
+
+The `paragraph_text` field contains the original text in an NFC normalized, UTF-8 encoded string.
+
+The `paragraph_anchors` field contains a list of anchors, each represented by a struct with the inclusive starting UTF-8 code point `start` field, exclusive ending UTF-8 code point `end` field, a nullable `qid` field, a nullable `pageid` field, and an NFC normalized, UTF-8 encoded `title` (Wikipedia) field.
+
+Additionally, each paragraph has `article_title`, `article_pageid`, and (nullable) `article_qid` fields referring to the article the paragraph came from.
+
+There is also a nullable, NFC normalized, UTF-8 encoded `section_heading` field, and an integer `section_level` field referring to the heading (if it exists) of the article section, and the level in the section hierarchy that the paragraph came from.
+
+The `qid` fields refers to Wikidata's QID identifiers, while the `pageid` and `title` fields refer to Wikipedia's pageID and title identifiers (there is a one-to-one mapping between pageIDs and titles).
+
+**NOTE:** An anchor will always have a `title`, but that doesn't mean it has to have a `pageid`. This is because Wikipedia allows defining anchors to nonexistent articles.
+
+An example from the WikiAnc HR test set looks as follows:
+
+```
+{
+  "uuid": "8a9569ea-a398-4d14-8bce-76c263a8c0ac",
+  "article_title": "Špiro_Dmitrović",
+  "article_pageid": 70957,
+  "article_qid": 16116278,
+  "section_heading": null,
+  "section_level": 0,
+  "paragraph_text": "Špiro Dmitrović (Benkovac, 1803. – Zagreb, 6. veljače 1868.) hrvatski časnik i politički borac u doba ilirizma.",
+  "paragraph_anchors": [
+    {
+      "start": 17,
+      "end": 25,
+      "qid": 397443,
+      "pageid": 14426,
+      "title": "Benkovac"
+    },
+    {
+      "start": 27,
+      "end": 32,
+      "qid": 6887,
+      "pageid": 1876,
+      "title": "1803."
+    },
+    {
+      "start": 35,
+      "end": 41,
+      "qid": 1435,
+      "pageid": 5903,
+      "title": "Zagreb"
+    },
+    {
+      "start": 43,
+      "end": 53,
+      "qid": 2320,
+      "pageid": 496,
+      "title": "6._veljače"
+    },
+    {
+      "start": 54,
+      "end": 59,
+      "qid": 7717,
+      "pageid": 1811,
+      "title": "1868."
+    },
+    {
+      "start": 102,
+      "end": 110,
+      "qid": 680821,
+      "pageid": 54622,
+      "title": "Ilirizam"
+    }
+  ]
+}
+```
+
+### Data Fields
+
+- `uuid`: a UTF-8 encoded string representing a v4 UUID that uniquely identifies the example
+- `article_title`: an NFC normalized, UTF-8 encoded Wikipedia title of the article; spaces are replaced with underscores 
+- `article_pageid`: an integer representing the Wikipedia pageID of the article
+- `article_qid`: an integer representing the Wikidata QID this article refers to; it can be null if the entity didn't exist in Wikidata at the time of the creation of the original dataset
+- `section_heading`: a nullable, NFC normalized, UTF-8 encoded string representing the section heading
+- `section_level`: an integer representing the level of the section in the section hierarchy
+- `paragraph_text`: an NFC normalized, UTF-8 encoded string representing the paragraph
+- `paragraph_anchors`: a list of structs representing anchors, each anchor has:
+  - `start`: an integer representing the inclusive starting UTF-8 code point of the anchors
+  - `end`: an integer representing the exclusive ending UTF-8 code point of the anchor
+  - `qid`: a nullable integer representing the Wikidata QID this anchor refers to; it can be null if the entity didn't exist in Wikidata at the time of the creation of the original dataset
+  - `pageid`: a nullable integer representing the Wikipedia pageID of the anchor; it can be null if the article didn't exist in Wikipedia at the time of the creation of the original dataset
+  - `title`: an NFC normalized, UTF-8 encoded string representing the Wikipedia title of the anchor; spaces are replaced with underscores; can refer to a nonexistent Wikipedia article 
+
+### Data Splits
+
+The data is split into training, validation and test sets; paragraphs belonging to the same article aren't necessarily in the same split. The final split sizes are as follows:
+
+|                                   | Train        | Validation | Test      |
+| :-----                            | :------:     | :-----:    | :----:    |
+| WikiAnc HR - articles             | 192,653      | 116,375    | 116,638   |
+| WikiAnc HR - paragraphs           | 2,346,651    | 292,590    | 293,557   |
+| WikiAnc HR - anchors              | 8,368,928    | 1,039,851  | 1,044,828 |
+| WikiAnc HR - anchors with QIDs    | 7,160,367    | 891,959    | 896,414   |
+| WikiAnc HR - anchors with pageIDs | 7,179,116    | 894,313    | 898,692   |
+
+**NOTE:** The number of articles in the table above refers to the number of articles that have at least one paragraph belonging to the article appear in the split.
+
+## Additional Information
+
+### Licensing Information
+
+The WikiAnc HR dataset is given under the [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/) license. 

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