摘要：
One of the most important bits of every search engine is the query
interface. Complex interfaces may cause users to struggle in learning
the handling. An example is the query language SQL. It is really
powerful, but usually remains hidden to the common user. On the
other hand the usage of current languages for Internet search engines
is very simple and straightforward. Even beginners are able to find
relevant documents.
This paper presents a hybrid query language suitable for both image
and text retrieval. It is very similar to those of a full text search
engine but also includes some extensions required for content based
image retrieval. The language is extensible to cover arbitrary feature
vectors and handle fuzzy queries.
