  OrbWeaver, an automatic knowledge extraction system paired with a human
interface, streamlines the use of unintuitive natural language processing
software for modeling systems from their documentation. OrbWeaver enables the
indirect transfer of knowledge about legacy systems by leveraging open source
tools in document understanding and processing as well as using web based user
interface constructs. By design, OrbWeaver is scalable, extensible, and usable;
we demonstrate its utility by evaluating its performance in processing a corpus
of documents related to advanced persistent threats in the cyber domain. The
results indicate better knowledge extraction by revealing hidden relationships,
linking co-related entities, and gathering evidence.
