Hi Paolo, Thanks for your advice. I'll try mvn install when our own LARQ is ready.,
The sub query method is totally good to me. It's just our app developer who doesn't like it. Thanks Tao -----Original Message----- From: Paolo Castagna [mailto:[email protected]] Sent: Tuesday, May 22, 2012 8:26 PM To: [email protected] Subject: Re: Expanding LARQ... (Was: LARQ usage, dependencies) Hi Tao, thanks for sharing, useful. Tao wrote: > Thanks Paolo, > > Yes we're planning to change LARQ's code. Below are the changes we > want to > make: > 1. To replace the default tokenizer with our Chinese tokenizer. Reasonable and in your case "mandatory"! ;-) > 2. To replace the Lucene scores with some other similarity scores, > such as "med(query, literal) divided by (query. length + literal. > length)" (med means minimum edit distance), which ranges from 0 to 1. We discussed about this already. > 3. To add a property argument to the pf:textMatch function so that > pattern {?x pf:textMatch ("bookxxx" 1 ex:authorOf)} bounds ?x to the > first object of property ex:authorOf that matches "bookxxx", instead > of the first object of all matches. (I suggested using sparql > sub-queries but our sparql users prefer the extended pf:textMatch. Can't you do it without sub queries? It's just a basic triple pattern, isn't it? { ?x ex:authorOf ?a . ?a pf:textMatch ("bookxxx" 1 ) . } What's wrong with this approach? > As to the pom.xml patch, can we change it so that the LARQ dependence > point to our local LARQ.jar, instead of the official maven repository? > (I'm not familiar with maven) You could run your own internal Maven repository and install your custom LARQ version there pointing at it from your custom Fuseki. There are plenty of good documents, for example: "Repository Management with Nexus" http://www.sonatype.com/books/nexus-book/reference/ Or, you can simply install your custom LARQ in your local Maven repository (via mvn install) and after that, on the same machine, repackage Fuseki (via mvn package). But now we are going a little bit off-topic. Paolo > > > Thanks > Tao > > -----Original Message----- > From: Paolo Castagna [mailto:[email protected]] > Sent: Tuesday, May 22, 2012 4:20 PM > To: [email protected] > Subject: Expanding LARQ... (Was: LARQ usage, dependencies) > > Hi Tao, > if you can share your requirements, that would be great. Maybe others > need the same features/capabilities and we can do something about it together. > > I am not sure exactly what you mean with 'expanding LARQ'. Are you > changing LARQ's code? > > LARQ is an additional jar which extends ARQ adding support for free > text searches in SPARQL queries. It can be simply added to a classpath > of any Java application using ARQ. Fuseki is one of such applications > and the way you do this with Maven is adding a dependency to LARQ in > the Fuseki's pom.xml file as shown in the patch attached to JENA-63 [1] (for example). > Would that work for you? > > Is it the scores you are trying to change [2]? ;-) > > Paolo > > [1] https://issues.apache.org/jira/browse/JENA-63 > [2] https://issues.apache.org/jira/browse/JENA-242 > > Tao wrote: >> Hi Paolo, >> >> One of our index guys is working on expanding LARQ to meet our own >> requirements. However, I'm not sure how to assemble it with Fuseki >> when he finished. Can you suggest how? >> >> Thanks >> Tao >
