Approximate string matching algorithms can be used as data mining tools and applied to a data set of strings to retrieve an approximate closely matched string in response to a query string posed to the system. In a similar way, a query finger print can be posed to a data set of saved finger prints of criminals and if there is a match, the criminal is identified and penalized for any recent crimes. Text mining can be carried out in online bookshop systems.
A text mining tool is executed on the reviews of a book and the comments in the reviews are analyzed for sentiment values – bad, moderate, good or excellent using the tool and the results can be analyzed to find out patterns such as which books are in great demand and should be brought in more supplies to meet customers’ requirements and hence purchases, increasing the profits from the system.