Patent ID: 8301768

Claim:
A system for classifying data comprising: a computing device comprising a memory and a processor, the computing device storing on the memory for execution by the processor: a higher order indexing module configured to: (a) perform higher-order indexing to generate a plurality of topic indexes from a pre-selected data set, the higher-order indexing based on relationships between information in the pre-selected data set; (b) compute a lift metric on said topic indexes to gauge information content of said topic indexes; (c) compute similarity of said topic indexes; and (d) classify data received by said higher order indexing module into a topic index in said topic indexes based on the relationships between the information in the pre-selected data set, wherein the higher-order indexing module calculates probabilities: P _( t|C )=(# of higher-order paths in class C comprising entity t )/(# of higher-order paths in class C ) and P ( C )=(# of higher-order paths in class C )/(total # of higher-order paths).