1. A computer-implemented method for extracting problem and solution signature from problem records through unstructured and structured text mapping, classification and ranking, comprising: analyzing structured ticket information of a problem ticket and extracting structured attributes from the problem ticket; determining binding values for the structured attributes; ranking the structured attributes based on the binding values; analyzing unstructured ticket information and generating a plurality of unstructured keywords that are related in context with one another and with respect to one or more of the structured attributes; ranking said plurality of unstructured keywords; and generating a signature for the problem ticket using said ranking of the structured attributes and said ranking of said plurality of unstructured keywords.