Abstract: Systems and method automatically collect training data from manually created semantic relations, automatically extract rules from the training data to produce extracted rules, and automatically characterize existing semantic relations in the training data based on co-occurrence of the extracted rules in the existing semantic relations. Such systems and methods automatically construct semantic relation topics based on the characterization of the existing semantic relations, and group instances of the training data into the semantic relation topics to detect new semantic relations.

Abstract: A method and system for enabling non-programmers to create certifiable Extensible Access Control Markup Language (XACML) policies. The graphical user interface (GUI) presents a form to the security policy author using a natural language such as English, as specified by a context-free grammar. The compiler software translates the GUI's filled-in form—representing a human-readable natural language policy—into XACML code. A reverse compiler or de-compiler provides a certification of the XACML code to render the original policy in a natural language format such as English. Optionally, a tokenized intermediate form, a set of policy-specific data sets and a graph theory-based intermediate representation can be configured. Logic checks and code validation checks can be also preferably configured. Apparatus and medium claims are also provided.