12. A system for searching numerical terms, comprising: a computer-based stemming module for processing a numerical term to a stem, the stem being in the form of a number, and a distance measurement of the numerical term to the stem, wherein a numerical term is a string of characters including identified as a number by a numeric parser; an indexer for indexing the numerical term in a search index by the stem for search retrieval; a user interface for setting a modulus for sensitivity of the stemming; wherein the stemming module and the indexer are executed in any of a) computer hardware having a processor coupled to a memory, wherein said processor is configured to execute said processing and indexing steps and store information related to said processing and indexing steps in said memory, and b) computer software embodied in a non-transitory, computer-readable medium.
12. A system for searching numerical terms, comprising: a computer-based stemming module for processing a numerical term to a stem, the stem being in the form of a number, and a distance measurement of the numerical term to the stem, wherein a numerical term is a string of characters including identified as a number by a numeric parser; an indexer for indexing the numerical term in a search index by the stem for search retrieval; a user interface for setting a modulus for sensitivity of the stemming; wherein the stemming module and the indexer are executed in any of a) computer hardware having a processor coupled to a memory, wherein said processor is configured to execute said processing and indexing steps and store information related to said processing and indexing steps in said memory, and b) computer software embodied in a non-transitory, computer-readable medium. 14. The system as claimed in claim 12 , wherein the tokenizer determines textual terms and numerical terms in a document, and wherein textual terms are processed by a textual stemming module.