# Open Information Extraction

> Source: https://sukruyusufkaya.com/en/glossary/open-information-extraction
> Updated: 2026-05-13T20:58:23.603Z
> Type: glossary
> Category: dogal-dil-isleme
**TLDR:** An approach that extracts subject-relation-object structures from text without relying on a predefined relation schema.

<p>Open Information Extraction aims to obtain structured information from text without requiring a fixed ontology or predefined relation set. This flexibility is valuable for exploratory extraction across large document collections. However, the open-schema setup also introduces challenges in quality control and normalization. It is often used as an initial layer in knowledge graph construction.</p>