Thank you very much @Michael. I googled and didn't find much but I grabbed the book LIA 2nd Edn and went through that and found a very good example in Sec8.7 and that helped me solve the problem. Now I'm able to do highlighting for english texts but for non-english text no luck yet. I've posted new mails regarding the same[dont want to do cossposting]. If possible please have a look. And yes I must thank you and other authors for the wonderful book called LIA. Once I went thru this book I got cleared a lot many things, really very nice book. Surprisingly there is not much information on the net regarding the advanced features of lucene all of which are clearly explained in this book with examples.
Thank you. KK. On Mon, May 25, 2009 at 7:47 PM, Michael McCandless < luc...@mikemccandless.com> wrote: > I would do some googling to find examples, or read the javadocs for > the highlighter package? > > Or pick up copy of the early-release of Lucene in Action 2nd edition > from http://manning.com [disclaimer: I'm one of the authors on that > book!]. We've revamped the highlighter coverage (in chapter 8)... > > Mike > > On Mon, May 25, 2009 at 6:19 AM, KK <dioxide.softw...@gmail.com> wrote: > > Thanks @Michael. > > I've no idea about this contrib though I'm looking into highlighter. Can > you > > throw some lights on the same. The steps to be taken for achieving the > same. > > I'm completely new to this thing. Can you point me to some examples for > the > > same? Thank you. > > > > KK. > > > > On Mon, May 25, 2009 at 3:26 PM, Michael McCandless < > > luc...@mikemccandless.com> wrote: > > > >> Can't you use contrib/highlighter to achieve this? > >> > >> It can do both excerpting (grabbing chunk of text around each hit) and > >> highlighting (highlighting the specific tokens that matched, within > >> that excerpt). > >> > >> Mike > >> > >> On Mon, May 25, 2009 at 5:20 AM, KK <dioxide.softw...@gmail.com> wrote: > >> > Thanks for your response @Seid. > >> > Can any Lucene user give me directions on this regard? I'm stuck. > >> > Really appreciate your help. > >> > > >> > Thanks, > >> > KK > >> > > >> > On Mon, May 25, 2009 at 2:43 PM, Seid Muhie <seidy...@gmail.com> > wrote: > >> > > >> >> actually I used the normal java standard libraries for this work. I > >> >> used lucene only to retrieve the relevant document. > >> >> what you will do is, thought it is to manuall, as i don't know the > way > >> >> it can be done by the Lucene API, you just record the location of the > >> >> query terms in the document (it is as easy as indexOf(query terms)). > >> >> But you have to be very aware of the speed of the system. then you > can > >> >> go ahead or back, as you want. > >> >> > >> >> Once again, I think there will be also a LUcene workaround, that I am > >> >> not aware of it at all. > >> >> > >> >> Seid M > >> >> > >> >> On 5/25/09, KK <dioxide.softw...@gmail.com> wrote: > >> >> > Thanks for your quick response, Seid. > >> >> > > >> >> > There is one more mail I found in the archive[3/4 days old] where > >> someone > >> >> > asked about extracting 3 neighbors words around the match. I think > >> once > >> >> you > >> >> > have the position of matching term/phrase then extracting 3 or 30 > >> >> neighbors > >> >> > wont be different, right? because you just have to move > back/forward > >> and > >> >> get > >> >> > the words, this sounds logically simple but I dont know how simple > is > >> >> this > >> >> > implementation-wise. > >> >> > Also people are talking about someting called > spanQueries/termvectors > >> etc > >> >> to > >> >> > use for this purpose. I'm still to get the exact idea of how to do > >> this. > >> >> > As per your mail, you used Java to extract the neighbors, Is that > >> using > >> >> the > >> >> > standard techniques i.e using those spanqueries/termvectors or > >> something > >> >> > else. > >> >> > If you can elaborate all this a bit It'd be very helpful. > >> >> > > >> >> > Thank you. > >> >> > KK> > >> >> > > >> >> > On Mon, May 25, 2009 at 10:51 AM, Seid Muhie <seidy...@gmail.com> > >> wrote: > >> >> > > >> >> >> for my thesis work (Question Answering) I used to retrieve first > the > >> >> >> document and then play with java to extract the needed answer. > >> >> >> for your case what you will do is first locate the positions of > the > >> >> >> query terms in the document (in this case it might be distributed > >> >> >> throughout the document - hence difficult to get the 15/20 words) > >> then > >> >> >> count something10 words forward and backward and extract the > match. > >> >> >> this is the way I handle my problem. Hope there might be different > I > >> >> >> dea too > >> >> >> > >> >> >> Seid M. > >> >> >> > >> >> >> On 5/25/09, KK <dioxide.softw...@gmail.com> wrote: > >> >> >> > Hi All, > >> >> >> > I'm trying to index some non-english web pages and I'm keeping > all > >> the > >> >> >> > content of the page in a single field and the searches are > working > >> >> fine > >> >> >> as > >> >> >> > well. Now when I search for some query it gives the complete > page, > >> >> which > >> >> >> is > >> >> >> > expected. Now I want to restrict the showing of results to say > 20 > >> >> words > >> >> >> > around the match, something like google does, otherwise we > cann't > >> make > >> >> >> users > >> >> >> > to look for a match in the whole page content[I'll use > highlighter > >> >> after > >> >> >> > this is done]. So getting positions of the matched word/phrase > >> might > >> >> >> > help > >> >> >> so > >> >> >> > that I can extract some words before and some words after that > and > >> >> will > >> >> >> show > >> >> >> > that to end user. Any idea on doing the same will be very > helpful. > >> >> Thank > >> >> >> > you. > >> >> >> > > >> >> >> > KK. > >> >> >> > > >> >> >> > >> >> >> > >> >> >> -- > >> >> >> "RABI ZIDNI ILMA" > >> >> >> > >> >> >> > --------------------------------------------------------------------- > >> >> >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >> >> >> For additional commands, e-mail: java-user-h...@lucene.apache.org > >> >> >> > >> >> >> > >> >> > > >> >> > >> >> > >> >> -- > >> >> "RABI ZIDNI ILMA" > >> >> > >> >> --------------------------------------------------------------------- > >> >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >> >> For additional commands, e-mail: java-user-h...@lucene.apache.org > >> >> > >> >> > >> > > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >> For additional commands, e-mail: java-user-h...@lucene.apache.org > >> > >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
