The value of data is no longer unknown to the business world. Both structured and unstructured data are important because they are unprocessed raw materials which go into analysis. Many business leaders and IT professionals prefer structured data, while it is currently being observed that unstructured data also has a lot to offer. Unstructured data coming from various social network sites help business leaders to gauge customer sentiments and grievances. It also helps to reduce costs and adapt to a changing market situations. Sometimes there can be challenges handling unstructured data such as collection, organization, integration and analysis. text analytics, auto taxonomy generation, auto tagging and other techniques are vital when it comes extracting value from unstructured data. To know more read: http://www.cio.com/article/2941015/big-data/solving-the-unstructured-data-challenge.html