What challenges does the increase in unstructured data present for businesses?

What challenges does the increase in unstructured data present for businesses?
Business intelligence tools deal primarily with data that have been structured in databases and fi les. However, unstructured data, mostly in the form of text fi les, is believed to account for more than 80 percent of an organization's useful information. E-mail, memos, call center transcripts, survey responses, legal cases, patent descriptions, and service reports are all valuable for finding patterns and trends that will help employees make better business decisions. Text mining tools are now available to help businesses analyze these data. These tools are able to extract key elements from large unstructured data sets, discover patterns and relationships, and summarize the information. Businesses might turn to text mining to analyze transcripts of calls to customer service centers to identify major service and repair issues.