February 7, 2023 Dataset Open Access

Michaelis, Lars

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<resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-3" xsi:schemaLocation="http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd">
  <identifier identifierType="DOI">10.25592/uhhfdm.11447</identifier>
  <creators>
    <creator>
      <creatorName>Michaelis, Lars</creatorName>
    </creator>
  </creators>
  <titles>
    <title>WikiEvents Dataset from January 2020 to December 2022</title>
  </titles>
  <publisher>Universität Hamburg</publisher>
  <publicationYear>2023</publicationYear>
  <subjects>
    <subject>Knowledge Graph</subject>
    <subject>Events</subject>
    <subject>Location Extraction</subject>
    <subject>Entity Linking</subject>
    <subject>NLP</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2023-02-07</date>
  </dates>
  <language>en</language>
  <resourceType resourceTypeGeneral="Dataset"/>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://www.fdr.uni-hamburg.de/record/11447</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsPartOf">10.25592/uhhfdm.11446</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by-sa/4.0/legalcode">Creative Commons Attribution Share Alike 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;WikiEvents is a knowledge graph based dataset for NLP and event-related machine learning tasks.&lt;/p&gt;

&lt;p&gt;This dataset includes RDF data in JSON-LD about events between January 2020 and December 2022. It was extracted from the Wikipedia Current events portal, Wikidata, OpenStreetMaps Nominatim and Falcon 2.0. The extractor is available on GitHub under &lt;a href="https://github.com/semantic-systems/current-events-to-kg"&gt;semantic-systems/current-events-to-kg&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;The RDF data for each month is split onto four graph modules each:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;The &lt;strong&gt;base&lt;/strong&gt; graph module contains events, event summaries with references from named entities to Wikipedia articles.&lt;/li&gt;
	&lt;li&gt;The &lt;strong&gt;ohg&lt;/strong&gt; graph module with all one-hop graphs (ohg) around the referencend Wikidata entities.&lt;/li&gt;
	&lt;li&gt;The &lt;strong&gt;osm&lt;/strong&gt; graph module which contains spartial data from OpenStreetMap (OSM).&lt;/li&gt;
	&lt;li&gt;The &lt;strong&gt;raw&lt;/strong&gt; graph module containing the raw HTML objects of events and article infoboxes.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;This repository additionally includes two JSON files with training samples used for entity linking and event-related location extraction. They were created using queries to the WikiEvents dataset uploaded into this repository.&lt;/p&gt;</description>
  </descriptions>
</resource>