Have you read Lucene In Action 2nd edition? Highly recommended for anyone new to lucene and includes info and code on synonyms and position increments. The code is available somewhere as a free download. You may also want to read up on slop and span queries. See for example http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/
-- Ian. On Thu, Jun 23, 2011 at 1:25 AM, Jason Guild <jason.gu...@alaska.gov> wrote: > Hi All: > > I am new to Lucene and my project is to provide specialized search for a set > of booklets. I am using Lucene Java 3.1. > > The basic idea is to run queries to find out what booklet and page numbers > are > match in order to help people know where to look for information in the > (rather > large and dry) booklets. Therefore each Document in my index represents a > particular page in one of the booklets. > > So far I have been able to successfully scrape the raw text from the > booklets, > insert it into an index, and query it just fine using StandardAnalyzer on > both > ends. > > So here's my general question: > Many queries on the index will involve searching for place names mentioned > in the > booklets. Some place names use notational variants. For instance, in the > body text > it will be called "Ship Creek" but in a diagram it might be listed as "Ship > Cr." or > elsewhere as "Ship Ck.". > > If I search for (Ship AND (Cr Ck Creek)) this does not give me what I want > because > other words may appear between [ship] and [cr]/[ck]/[creek] leading to false > positives. > > What I need to know is how to approach treating the two consecutive words as > a single > term and add the notational variants as synonyms. So, in a nutshell I need > the basic > stuff provided by StandardAnalyzer, but with term grouping to emit place > names > as complete terms and insert synonymous terms to cover the variants. > > For instance, the text "...allowed from the mouth of Ship Creek upstream to > ..." would > result in tokens [allowed],[mouth],[ship creek],[upstream]. Perhaps via a > TokenFilter along > the way, the [ship creek] term would expand into [ship creek][ship ck][ship > cr]. > > As a bonus it would be nice to treat the trickier text "..except in Ship, > Bird, and > Campbell creeks where the limit is..." as [except],[ship creek],[bird > creek], > [campbell creek],[where],[limit]. > > Should the detection and merging be done in a TokenFilter? > Some of the term grouping can probably be done heuristically [*],[creek] is > [* creek] > but I also have an exhaustive list of places mentioned in the text if that > helps. > > Thanks for any help you can provide. > Jason > > > > > --------------------------------------------------------------------- > 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
