KBpedia Knowledge Graph Version 1.10 Released



CORALVILLE, IA (11/15/2016) – Cognonto today released version 1.10 of its KBpedia knowledge graph structure. KBpedia integrates six major knowledge bases (Wikipedia, Wikidata, OpenCyc, GeoNames, DBpedia and UMBEL), plus mappings to another 20 leading knowledge vocabularies, under the KBpedia Knowledge Ontology (KKO). KBpedia’s explicit purpose is to provide a foundation for knowledge-based artificial intelligence (KBAI) by supporting the (nearly) automatic creation of training corpuses and positive and negative training sets and feature sets for deep, unsupervised and supervised machine learning.

This new release focused on two major updates. First, certain aspects of the upper structure of the KKO were streamlined. And, second, KBpedia’s core typologies, which capture the majority of reference concepts that are classified as entities, were further organized to create tighter taxonomic structures.

The upper portion of KBpedia required cleanup because it was still using some of the abstract-tangible distinctions used in Cyc. These distinctions were no longer necessary with the adoption of the universal categories of Charles S. Peirce (see this earlier article for more on this architectural design). This cleanup resulted in removing nearly 25% of the upper level links from the prior version (which were superfluous to the disjoint design of KBpedia). The typology organizations are part of an ongoing effort to streamline and tighten these structures.

KBpedia contains nearly 40,000 reference concepts (RCs) and about 20 million entities. The combination of these and KBpedia’s structure results in over 6 billion logical connections across the system, as these KBpedia statistics show:

Measure Value
No KBpedia reference concepts (RCs) 39,052
No. mapped vocabularies 27

Core knowledge bases 6

Extended vocabularies 21
No. mapped classes 138,987

Core knowledge bases 137,322

Extended vocabularies 1,665
No. typologies (SuperTypes) 63

Core entity types 33

Other core types 5

Extended 25
Typology assignments 372,967
No. of “triples” in KBpedia ontology 1,347,818
No. aspects

Direct entity assignments 68,026,551

Inferred entity aspects 204,704,905
No. unique entities 19,643,718
Inferred no of entity mappings 2,541,684,526

Total no. of “triples” 3,689,849,183
Total no. of inferred and direct assertions 6,251,177,427
KBpedia v. 1.10 Statistics

This release of KBpedia is part of an ongoing series of releases to improve and extend the knowledge structure, as well as to increase its mappings to still additional external vocabularies. You can inspect the upper portions of the KBpedia structure on the Cognonto Web site. Also, if you have an ontology editor, you can download and inspect the open source KKO directly.

About Cognonto

Cognonto (a portmanteau of 'cognition' and 'ontology') exploits large-scale knowledge bases and semantic technologies for machine learning, data interoperability and mapping, and fact and entity extraction and tagging. Cognonto LLC is privately held and is based in Coralville, Iowa, USA, with offices in Québec City, Québec, Canada.

Press Contact

Mike Bergman, Cognonto LLC