The ctrl semantic engine is the first product
of the Research and Development group at PRAGMATECH. The main functionality of ctrl’s
API is to identify the set of (disambiguated) key topics. In ctrl we have moved
from words to concepts, then from simple concepts to topics (which are not phrases,
but complex ‘disambiguated’ concepts), and, subsequently, to key topics that represent
what a certain document is about.
"ctrl News" demo service is used to illustrate how these topics can then be used
to extract lucid summaries of news-like documents and to index and retrieve by topics
and concepts as opposed to key words and phrases.