9. The system of claim 1 , wherein the processor further comprises: an indicator module configured to generate at least one indicator by indicating a property and an association of the associated keyword or the extended keyword provided by the search module; an indicator selecting module configured to select an indicator from the at least one indicator as a weight indicator, the selection is based on a purpose of usage of the associated keyword or the extended keyword; a weight correcting module configured to apply a weight to the weight indicator in order to change an indicator value of the weight indicator; and a simulation module configured to assess the keyword based on the weight indicator and the indicator, wherein the search module is configured to provide a keyword based on the assessment of the keyword.
10. The system of claim 9 , wherein the indicator selecting module is configured to identify an objective corresponding to the purpose of usage of the keyword, set a directive that includes a set of conditions for identifying the purpose of usage of the keyword based on the objective, and select a directive indicator from the at least one indicator based on the directive.