Understanding Wikidata Qualifiers: An Analysis and Taxonomy

Fuente: arXiv
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Main Authors: Falquet, Gilles, Aljalbout, Sahar
Format: Preprint
Published: 2026
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author Falquet, Gilles
Aljalbout, Sahar
author_facet Falquet, Gilles
Aljalbout, Sahar
contents This paper presents an in-depth analysis of Wikidata qualifiers, focusing on their semantics and actual usage, with the aim of developing a taxonomy that addresses the challenges of selecting appropriate qualifiers, querying the graph, and making logical inferences. The study evaluates qualifier importance based on frequency and diversity, using a modified Shannon entropy index to account for the "long tail" phenomenon. By analyzing a Wikidata dump, the top 300 qualifiers were selected and categorized into a refined taxonomy that includes contextual, epistemic/uncertainty, structural, and additional qualifiers. The taxonomy aims to guide contributors in creating and querying statements, improve qualifier recommendation systems, and enhance knowledge graph design methodologies. The results show that the taxonomy effectively covers the most important qualifiers and provides a structured approach to understanding and utilizing qualifiers in Wikidata.
format Preprint
id arxiv_https___arxiv_org_abs_2603_11767
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Understanding Wikidata Qualifiers: An Analysis and Taxonomy
Falquet, Gilles
Aljalbout, Sahar
Artificial Intelligence
This paper presents an in-depth analysis of Wikidata qualifiers, focusing on their semantics and actual usage, with the aim of developing a taxonomy that addresses the challenges of selecting appropriate qualifiers, querying the graph, and making logical inferences. The study evaluates qualifier importance based on frequency and diversity, using a modified Shannon entropy index to account for the "long tail" phenomenon. By analyzing a Wikidata dump, the top 300 qualifiers were selected and categorized into a refined taxonomy that includes contextual, epistemic/uncertainty, structural, and additional qualifiers. The taxonomy aims to guide contributors in creating and querying statements, improve qualifier recommendation systems, and enhance knowledge graph design methodologies. The results show that the taxonomy effectively covers the most important qualifiers and provides a structured approach to understanding and utilizing qualifiers in Wikidata.
title Understanding Wikidata Qualifiers: An Analysis and Taxonomy
topic Artificial Intelligence
url https://arxiv.org/abs/2603.11767