We provide a small Java library that can be used with one or more large plugins, which provide the complete data for offline use (i.e., no need to connect to our servers). More information (and new versions) will follow soon. In the meantime, please contact Gerard de Melo if you have any questions.
Important: A new version of uwnapi.zip was released on 2012-11-23. This version allows you to obtain statement weights and fixes a character encoding issue (thanks to Aya Zoghby for reporting this). Please upgrade!
Take a look at the example code.
Alternatively, you can work with a raw dump of the UWN Core. We provide a gzip-compressed TSV file, which is best decompressed on the fly while reading for best performance. Each line contains subject, predicate, object, and weight, separated by tabs.