Content area
Full Text
Abstract-Association Discovery Framework (ADF) allows rules engines to be integrated with WebTAS so that the rules engines may associate related records. The associations, or relationships as they are known in WebTAS, include system generated confidence values and also allow for user specified confidences. Filtering may be applied to views in WebTAS so that only records with a user confidence are honored, so that only confidences above a threshold are displayed and so that a combination of user and system confidences are used. This paper describes one implementation of this framework that uses the Seer complex event processing system as its rules engine.
Keywords: WebTAS, Seer, complex event processing, association discovery
1. Introduction
WebTAS, the Web-Enabled Temporal Analysis System, is software that provides data access, query, visualization, analysis and reporting capabilities to government customers. The Association Discovery Framework (ADF) provides WebTAS with an optional server component that searches for related records based on customizable rules or complex event processing (CEP) implementations. ADF is able to examine data, searching for results that match defined patterns. Once discovered, these results are captured by ADF with a relationship or association being created between related records. The relationship between the records is given a confidence or score between 0 and 100% that identifies the system's confidence in the existence of the discovered relationship. Since analysts do not generally trust everything computers tell them, ADF also provides the ability for users to add their own confidences to any relationship.
The rest of this paper will provide some background about WebTAS, about its ability to capture and visualize relationships between records, about its ability to capture confidences both in relationships and in records, about the Seer complex event processing system that is a component of WebTAS and about the named entity extraction capability that is also a component of WebTAS. Next, this paper will discuss the ADF design including server components, its configuration, its pluggable nature and its visualization enhancements for confidence filtering. Then this paper will provide discussion of a practical example that has been demonstrated using the ADF and Seer as a reference implementation of a rules engine. Finally, some conclusions and ideas for future work will be discussed.
2. Background
2.1 WebTAS
Web-Enabled Temporal Analysis System (WebTAS)...