Knowledge-Based Trust: Estimating the Trustworthiness of Web Sources

Understand

The quality of web sources has been traditionally evaluated using exogenous signals such as the hyperlink structure of the graph.

• We propose a new approach that relies on endogenous signals, namely, the correctness of factual information provided by the source.
• A source that has few false facts is considered to be trustworthy.
• The facts are automatically extracted from each source by information extraction methods commonly used to construct knowledge bases.