What exactly is IBM Watson?
It is a computer system designed to answer questions in a natural language. The power of cognitive technology lies in its ability to draw insights from unstructured sets of data. In a spreadsheet, structured data is found, while unstructured data is text, such as tweets, medical journals, etc. Today, 80% of information is unstructured, so techniques such as cognitive computing are becoming increasingly useful to help people understand what is inside the information.