Welcome to Netbase *, a high-performance semantic graph database, optimized for natural language queries on static freebase data.

Netbase supports blueprints, a graph database standard allowing for toolchaining, making databases available to all different tools.

Libraries and binaries are included for Mac and Linux.

You can feed it with any CSV XML or N3 data. Optimized for the quick import of Wordnet, DBPEDIA and Freebase (and private data )

Thanks to shared memory and binary dumps you can load and process billions of nodes+statements(edges) and hundreds of gigabytes in no time.

Requirements:

• Lots of RAM favorable
• For java-binding / blueprints : no requirements
• For server: lots data favorable
• For command line access: 'readline' lib

sudo port install readline sudo yum install readline sudo apt-get install readline

Playing with it:

./bin/netbase

USING SHARED MEMORY
Context#0 name:ROOT CONTEXT nodes:430338000, statements:355550000
Warnings: 0
Node limit: 1048576000
Statements: 1048576000

Netbase C++ Version z.a
netbase> ?
available commands
help :h or ?
load :l [force]	fetch the graph from disk or mem
import :i [<file>]
export :e (all to csv)
delete :d <node|statement|id|name>
save :s or :w
server
quit :q
clear :cl
limit <n>
Type words, ids, or queries:
all animals with feathers
select * from dogs where terrier
all city with countrycode ZW
Population of Gehren
opposite of bad
netbase> import

Live example queries:

• Episodes of South Park – Season 4
• Places opened in 1974
• Chemical structures
• All african birds with orange beaks.

Have fun! See here for more and hosted samples.