A guest post by Margueritte Leenhardt
Context
For more than a decade now, researchers from Text and Data Analytics, Computer Science, Computational Linguistics and Natural Language Processing, among others, have been working on technologies that could lead to analyze how people feel or what people think about something. In the current period, a great amount of commercial offers have been built on what is still to be taken as a Research Program. Here are some basic clues to get an idea of how this kind of content analysis technologies work.