Hi , I think I have been able to understand whats happening here...
Indexed Content : "This is a test". your search phrase : "This is a formal test" your setting the slop factor 2 , now if your slop factor is 3 it should work because "is" and "a" are stop words thus the words "This" and "test" are 2 slop factor apart but in your search phrase "This is a formal test" the words "This" and "test" are 3 slop factor thats why it's nor working now in search phrase "This is formal test" the words "This" and "test" are 2 slop factor apart thats why this phrase is working. On Mon, Jun 28, 2010 at 11:37 AM, a peng <zhoudengp...@gmail.com> wrote: > Hi, > > I am using StandardAnalyzer(Version.LUCENE_30); > > 2010/6/27 tarun sapra <t.sapr...@gmail.com> > > > which analyzer are you usin'? > > > > > > On Sun, Jun 27, 2010 at 7:12 AM, a peng <zhoudengp...@gmail.com> wrote: > > > > > Hi, > > > > > > I know the indexed content contains the following text: "This is a > test". > > > And the search phrase I used is "This is a formal test", and then I set > > the > > > slop of the PhraseQuery as 2 with setSlop(2), but I found that I can > not > > > get > > > a search result. If I set the search phrase as "This is formal test", > > then > > > I > > > can get the search result. > > > > > > So what is the problem here, thanks in advance. > > > > > > > > > Attached is the Java doc for the setSlop method: > > > > > > public void *setSlop*(int s) > > > > > > Sets the number of other words permitted between words in query phrase. > > If > > > zero, then this is an exact phrase search. For larger values this works > > > like > > > a WITHIN or NEAR operator. > > > > > > The slop is in fact an edit-distance, where the units correspond to > moves > > > of > > > terms in the query phrase out of position. For example, to switch the > > order > > > of two words requires two moves (the first move places the words atop > one > > > another), so to permit re-orderings of phrases, the slop must be at > least > > > two. > > > > > > More exact matches are scored higher than sloppier matches, thus search > > > results are sorted by exactness. > > > > > > The slop is zero by default, requiring exact matches. > > > > > > > > > > > -- > > Thanks & Regards > > Tarun Sapra > > > -- Thanks & Regards Tarun Sapra
