Searching by similarity using term vectors

[Mike O'Leary <tm...@uw.edu>]

If I have indexed a set of documents using term vectors, is there support in Lucene to treat a list of query terms as a small document, create a term vector for it, and find documents by computing similarity between the query's term vector and the term vectors in the index? If so, what API functions are provided to do this kind of search? It looks like the standard method of search treats a list of query terms as a Boolean query. Is there an alternative search function that doesn't do this?
Thanks,
Mike