LOD:ontology statistics
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= Setup = | = Setup = | ||
On this page we list useful statistics of ontologies (vocabularies, schemas, etc). This information about ontologies can be used to compare them and decide on which corpora to use for what. | On this page we list useful statistics of ontologies (vocabularies, schemas, etc). This information about ontologies can be used to compare them and decide on which corpora to use for what. | ||
| + | [[Image:P1030792.jpg]] | ||
= Proposals = | = Proposals = | ||
Revision as of 14:32, 22 September 2010
Contents |
Setup
On this page we list useful statistics of ontologies (vocabularies, schemas, etc). This information about ontologies can be used to compare them and decide on which corpora to use for what.
Proposals
If you have any proposals for different statistics, or vocabularies to include, please state them here.
Statistics / measures explained
- #triples
- #classes
- t/c ratio: triples / classes ratio, gives an idea about how much annotations a class generally has.
- #props: amount of unique properties
- #mappings: alignments with other LOD corpora. Should include total nr mappings, but preferably also nr mappings to specific corpora.
- last update: date of the last update
- update freq: nr of times the ontology is updated
Statistics
World knowledge
| ontology | #triples | #classes | t/c ratio | #props | #mappings | last update | update freq |
|---|---|---|---|---|---|---|---|
| dbpedia | 1 billion | 3.4 million (of which 1.5 million are classified in a consistent Ontology) | 294.1 | ? | 4,887,000 | 2010-4-28 | 3 times per year |
| freebase | constantly | (N/A) | |||||
| [opencyc] | 56,780 | 73,132
| 2008 | ||||
People
| ontology | #triples | #classes | t/c ratio | #props | #mappings | last update | update freq |
|---|---|---|---|---|---|---|---|
| foaf | |||||||
Places
| ontology | #triples | #classes | t/c ratio | #props | #mappings | last update | update freq |
|---|---|---|---|---|---|---|---|
| foaf | |||||||
Lexical
| ontology | #triples | #classes | t/c ratio | #props | #mappings | last update | update freq |
|---|---|---|---|---|---|---|---|
| foaf | |||||||
Misc ontologies
| ontology | domain | #triples | #classes | t/c ratio | #props | #mappings | last update | update freq |
|---|---|---|---|---|---|---|---|---|
| LinkedMDB | movies | |||||||
