Hi Jason, I get the same thing for the queryNorm when I calculate it by hand: 1/((1.7613963**2 + 1.326625**2)**.5) = 0.45349488111693986
-Yonik On 2/6/06, jason <[EMAIL PROTECTED]> wrote: > Hi, > > I have a problem of understanding the queryNorm and fieldNorm. > > The following is an example. I try to follow what said in the Javadoc > "Computes the normalization value for a query given the sum of the squared > weights of each of the query terms". But the result is different. > > ID:0 C:/PDF2Text/SearchEngine/File/SIG/sigkdd/p374-zhang.pdf|initial rank: 0 > 0.31900567 = sum of: > 0.03968133 = weight(contents:associ in 920), product of: > 0.60161763 = queryWeight(contents:associ), product of: > 1.326625 = idf(docFreq=830) > 0.45349488 = queryNorm > 0.065957725 = fieldWeight(contents:associ in 920), product of: > 4.2426405 = tf(termFreq(contents:associ)=18) > 1.326625 = idf(docFreq=830) > 0.01171875 = fieldNorm(field=contents, doc=920) > 0.27932435 = weight(contents:rule in 920), product of: > 0.7987842 = queryWeight(contents:rule), product of: > 1.7613963 = idf(docFreq=537) > 0.45349488 = queryNorm > 0.34968686 = fieldWeight(contents:rule in 920), product of: > 16.941074 = tf(termFreq(contents:rule)=287) > 1.7613963 = idf(docFreq=537) > 0.01171875 = fieldNorm(field=contents, doc=920) > > regards > jiang xing > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
