Hi all,
Recently, we are developing a platform with lucene. The ordering rule we
specified is the document with the shortest distance between query terms ranks
the first. But there may be a little different with SpanNearQuery. It returns
all the documents with qualified distance. So I am confused with the ordering
rule about SpanNearQuery. For example, I indicate the slot in SpanNearQuery is
10. And the results are all the qualified documents. Is it true that any
document with shorter distance between query rand before the one with longer
distance without considering the tf-idf algorithm? Or among all the qualified
documents, it till uses tf-idf algorithm to rank the docs. Or there is some
complex algorithm blending the distance and tf-idf algorithm.
Thanks in advance.
--
Guang Yang,
Dept. of Computer Science
Peking University, 100080
Beijing, China
Tel: +86 18631516893
