Unstructured textual information exists everywhere, in complaint forms, newspapers, scientific documents, “open” questions in questionnaires, interviews and, of course, in the Web, in social media, blogs, forums, etc.

Textual analysis involves the linguistic analysis of such texts which typically contain some pieces of important qualitative information. It is combined with text mining approaches which search for patterns in the texts by transforming the problem to a numerical one.

QUANTOS has developed its own text mining methodology and also implements the most modern approaches based on open source tools such as Python’s Natural Language Toolkit (NLTK) and R’s library tm.