Quaero = ... + Quintura + Polar Rose + ...

According to a note in the International Herald Tribune , QuaTura , a Russian- based company that provides a graphical interface that allows users to refine the query, and the Swedish company Polar Rose , which operates a search engine using face recognition technologies , also take part in the Quaero project , creating a pan-European search engine . According to rumors , the European branch of Accoona may also take part in the Quaero project.