AllegroGraph is a fully ACID and highly scalable RDF triplestore that can be programmed with compiled, server side JavaScript. This allows programmers to easily manipulate individual triples and create their own intelligent graph or reasoning algorithms. However, one wish that has been expressed by many programmers is to work on the level of objects instead of individual triples, where an object would be defined as all the triples with the same subject. So we created a MongoDB interface where programmers can add, delete and modify JSON objects directly into MongoDB like substores. This gives us the best of both worlds. We get the beautiful simplicity of the MongoDB interface for working with objects and we get the all the properties of an advanced triplestore, in this case joins through SPARQL queries, automatic indexing of all attributes/values, ACID properties all packaged to deliver a simple entry into the world of the Semantic Web.

1. MongoGraph
I wish I could be in San Jose to
catch your Mongo talk I've been
talk. I ve
working a bit with Mongo myself
and am thrilled at what you've got
coming. I've actually been toying
with a FUSE filesystem with an
AGraph backend to provide a
similar browse-by-subject or -
predicate feature. The MongoDB
interface is much more elegant ..
elegant.
Chris Curtis, 08/21/2011

2. AllegroGraph
Backup/Restore REST
Replication
Rules
Rules Java‐
Java
Sparql Prolog Geo SNA Time RDFS+
Clif++ Script
Warm Failover
Security Session Management, Query Engine, Federation
Management
Storage layer ( compression, indexing, freetext, transactions )

3. Two questions we get
Two questions we get
• Can you make the freetext engine of AllegroGraph as
powerful as Solr/Lucene
&
• Can you make inserting and querying JSON documents as easy
g
as MongoDB

8. Or something more interesting
Or something more interesting

13. Bob
Craig Alice
Bill

16. So what do you get with this
approach?
h?
Sparql
JOINS
OWL Formalism
Prolog & Rules
Social Network Analysis
Reasoning

17. And where do we want to go
with this.
i h hi
• It’s R&D
• We could
– Use Agraph to index MongoDB
– Store all documents in Agraph
• Interested in people with use cases.
• Do you have an interesting cool MongoDB
Do you have an interesting cool MongoDB
application that you want to share with us?