The Link Analysis Workbench

Principal Investigator:  John D Lowrance Mailing address: AI Center SRI International 333 Ravenswood Avenue Menlo Park, CA 94025-3493 AIC Program:  Representation and Reasoning Project home page at http://www.ai.sri.com/~law/index.html

Main Goal for LAW

To develop the Link Analysis Workbench (LAW), a Web-accessible tool where analysts and machines collaboratively perform link analysis by defining hierarchical and temporal patterns, that include uncertain and qualitative elements, and by defining domain dependent and independent search strategies for pattern application, through a graphical user interface that supports direct graphical browsing and editing of patterns, search strategies, and summaries and details of resulting matches.

Tangible Benefits of LAW

• Analysts, aided by LAW, will be able to find patterns of links that constitute evidence for situations or actions of interest far faster than is possible without LAW and with far less effort
• The reasoning behind this evidence and its role within analytic arguments will be recorded in a way that is transparent to anyone who probes the conclusions
• LAW will allow analysts to easily define new patterns of interest and search control techniques for their application to support the specific needs of any analytic task
• LAW will support and foster a collaborative environment where analysts jointly work with contemporaries and analysts from the past, learning from others, leveraging their thinking, and sharing the load
• LAW will be transitioned into active use by intelligence analysts already using SRI’s structured argumentation tool, SEAS

Additional Information

• Working paper providing formal description of similarity metric based on graph edit distance (updated March 25th, 2003) - (slides)
• XML schema for LAW
  • The XML Schema for patterns
  • The XML Schema for hypotheses
  • The XML Schema for control messages
  • PatternML schema document (Word or HTML)
  • PatternML schema FAQ document (Word or HTML)
  • HypothesisML schema document (Word or HTML)
  • ControlML schema document (Word or HTML)

	Active Lisp Pages ALP is a framework that allows the embedding of Lisp code inside HTML (or XML) pages, for use in server side web scripting.
	FREEDIUS FREEDIUS is a free Geospatial Image Understanding system. It is a portable, open-source successor to SRI’s 3DIUS system (including CME, Image-Calc, RADIUS Common Development Environment, and other Image Understanding tools).
	LAW: Link Analysis Workbench LAW is a system that helps intelligence professionals define and match patterns within large, incomplete, and noisy sets of relational data.

Showing most recent 5 out of 10  [View All]

• Wolverton, M. and Harrison, I. and Lowrance, J. and Rodriguez, A. and Thomere, J. Advanced Patterns and Matches in Link Analysis, in Intelligence and Security Informatics, Proceedings of ISI-2006, Springer-Verlag, 2006.  [Details]

• Wolverton, M. and Harrison, I. and Lowrance, J. and Rodriguez, A. and Thomere, J. Software Supported Pattern Development in Intelligence Analysis, in Proceedings of the IEEE International Conference on Computational Intelligence for Homeland Security and Personal Safety (CIHSPS ’06), 2006.  [PDF, Details]

• Thomere, J. and Wolverton, M. Presentation of Information for Link Analysis, in Capturing and Using Patterns for Evidence Detection - Papers from the AAAI Fall Symposium, AAAI Press, pp. 99-104, Oct 2006.  [PDF, Details]

• Wolverton, M. and Harrison, I. and Lowrance, J. and Rodriguez, A. and Thomere, J. Supporting the Pattern Development Cycle in Intelligence Gathering, in Proceedings of the International Conference on Intelligence Analysis (IA’05), 2005.  [Details]

• Wolverton, M. and Thomere, J. The Role of Higher-Order Constructs in the Inexact Matching of Semantic Graphs, in Proceedings of the AAAI Workshop on Link Analysis, 2005.  [PDF, Details]