1. A computer-implemented method for determining overcorrelation of words in a plurality of documents, the method comprising the steps of: determining a plurality of words of interest from the plurality of documents; for each unique pair of words in the plurality of words of interest: generating a random number, wherein the random number has a value between 0 and 1; determining a particular value that is associated with a particular unique pair, wherein the particular value has a fractional part that is less than 1 and greater than 0; comparing the particular value and the random number; and adding a particular integer value to a count based on the comparison.