10. A method comprising the steps of: processing data associated with a security information and event management system in a computational semantic parser to generate a plurality of logical descriptors, the data comprising log data of the security information and event management system; generating a plurality of behavioral security descriptors based at least in part on at least a subset of the logical descriptors; and utilizing the behavioral security descriptors to generate one or more security alerts; wherein the processing step comprises: syntactically decomposing at least a portion of the log data into component elements comprising respective atomic syntactic units; assigning lexical meanings to the component elements utilizing metadata associated with the component elements and a lexicon of syntactic types the metadata comprising position information and attributes associated with the atomic syntactic units; assigning context denotation information to the component elements; and applying semantic recomposition to generate a given logical descriptor based on at least one combinatorial tree having nodes associated with respective Ones of the component elements and a tree structure determined at least in part using the assigned lexical meanings and context denotation information.
10. A method comprising the steps of: processing data associated with a security information and event management system in a computational semantic parser to generate a plurality of logical descriptors, the data comprising log data of the security information and event management system; generating a plurality of behavioral security descriptors based at least in part on at least a subset of the logical descriptors; and utilizing the behavioral security descriptors to generate one or more security alerts; wherein the processing step comprises: syntactically decomposing at least a portion of the log data into component elements comprising respective atomic syntactic units; assigning lexical meanings to the component elements utilizing metadata associated with the component elements and a lexicon of syntactic types the metadata comprising position information and attributes associated with the atomic syntactic units; assigning context denotation information to the component elements; and applying semantic recomposition to generate a given logical descriptor based on at least one combinatorial tree having nodes associated with respective Ones of the component elements and a tree structure determined at least in part using the assigned lexical meanings and context denotation information. 12. The method of claim 10 wherein the generating step comprises assigning Bayesian risk scores to respective ones of the behavioral security descriptors based on one or more security threat models.