RSS Feed for This PostCurrent Article

Open Source Graph Database–Cayley

 

image

Cayley is an open-source graph inspired by the graph database behind Freebase and Google’s Knowledge Graph.

Its goal is to be a part of the developer’s toolbox where Linked Data and graph-shaped data (semantic webs, social networks, etc) in general are concerned.

  • Written in Go
  • Easy to get running (3 or 4 commands, below)
  • RESTful API
    • or a REPL if you prefer
  • Built-in query editor and visualizer
  • Multiple query languages:
    • JavaScript, with a Gremlin-inspired* graph object.
    • (simplified) MQL, for Freebase fans
  • Plays well with multiple backend stores:
  • Modular design; easy to extend with new languages and backends
  • Good test coverage
  • Speed, where possible.

Rough performance testing shows that, on consumer hardware and an average disk, 134m triples in LevelDB is no problem and a multi-hop intersection query — films starring X and Y — takes ~150ms.


Trackback URL


Sorry, comments for this entry are closed at this time.