Dear Shashi, Thanks so much for your reply!
However, I think the value of PageRank is not a static one. It must update on the fly. As I know, Lucene index is not suitable to be updated too frequently. If so, how to deal with that? Best regards, Bing On Sun, Jan 22, 2012 at 12:43 PM, Shashi Kant <sk...@sloan.mit.edu> wrote: > Lucene has a mechanism to "boost" up/down documents using your custom > ranking algorithm. So if you come up with something like Pagerank > you might do something like doc.SetBoost(myboost), before writing to index. > > > > On Sat, Jan 21, 2012 at 5:07 PM, Bing Li <lbl...@gmail.com> wrote: > > Hi, Kai, > > > > Thanks so much for your reply! > > > > If the retrieving is done on a string field, not a text field, a complete > > matching approach should be used according to my understanding, right? If > > so, how does Lucene rank the retrieved data? > > > > Best regards, > > Bing > > > > On Sun, Jan 22, 2012 at 5:56 AM, Kai Lu <lukai1...@gmail.com> wrote: > > > >> Solr is kind of retrieval step, you can customize the score formula in > >> Lucene. But it supposes not to be too complicated, like it's better can > be > >> factorization. It also regards to the stored information, like > >> TF,DF,position, etc. You can do 2nd phase rerank to the top N data you > have > >> got. > >> > >> Sent from my iPad > >> > >> On Jan 21, 2012, at 1:33 PM, Bing Li <lbl...@gmail.com> wrote: > >> > >> > Dear all, > >> > > >> > I am using SolrJ to implement a system that needs to provide users > with > >> > searching services. I have some questions about Solr searching as > >> follows. > >> > > >> > As I know, Lucene retrieves data according to the degree of keyword > >> > matching on text field (partial matching). > >> > > >> > But, if I search data by string field (complete matching), how does > >> Lucene > >> > sort the retrieved data? > >> > > >> > If I want to add new sorting ways, Solr's function query seems to > support > >> > this feature. > >> > > >> > However, for a complicated ranking strategy, such PageRank, can Solr > >> > provide an interface for me to do that? > >> > > >> > My ranking ways are more complicated than PageRank. Now I have to load > >> all > >> > of matched data from Solr first by keyword and rank them again in my > ways > >> > before showing to users. It is correct? > >> > > >> > Thanks so much! > >> > Bing > >> >
