Got it. Thanks! On Thu, Sep 13, 2012 at 10:38 AM, Dave Reynolds <[email protected]>wrote:
> Hi, > > There's no particular special support in Fuseki for working with Pellet. > To get support on Pellet logging issues and optimizing reasoning you > probably need to contact the Pellet folks. > > Dave > > > On 13/09/12 15:46, Myunghwa Hwang wrote: > >> Hi, list! >> >> I am trying to make Jena-fuseki produce inferred statements when an >> ontology is uploaded to it. >> The vocabulary I am using includes terms for describing some associations >> between two spatial objects >> (e.g., spatial pair, hasContiguityType, hasDistance, hasSpatialWeight, >> etc.) and a collection of individuals instantiating those terms (e.g., a >> is >> a spatial object; a and b are a spatial pair; this spatial pair has a >> distance of 2.0, etc.). >> >> In this vocabulary, I also defined several SWRL rules like this: >> SpatialPair(?n) ^ hasContiguityType(?n,?t) ^ Rook(?t) ^ >> hasContiguityOrder(?n, ?o) ^ equalTo(?o, 1) -> ValidSpatialNeighbor(?n) >> ... >> When I entered to Fuseki an ontology with a small number of individuals >> (e.g., about 210 individuals), Fuseki produced all expected inferred >> statements. But, when I increased the number of individuals to 4851, >> Fuseki >> got killed due to the out of memory error. And, this error occurs when >> pellet does rule-based inference. The heap size for Java was set to 3GB. >> And, my configuration for Fuseki can be found here: >> https://dl.dropbox.com/u/**21798649/config.ttl<https://dl.dropbox.com/u/21798649/config.ttl> >> . >> A test ontology is also here: >> https://dl.dropbox.com/u/**21798649/all.owl<https://dl.dropbox.com/u/21798649/all.owl> >> >> Here are my questions: >> 1) Are there better ways to set up Fuseki so that Pellet-based inference >> goes smoothly? For example, indexing or use of OntModel? If so, where can >> I >> find corresponding documentation? >> 2) How can I make Pellet output its logs into the log file for Fuseki? >> >> Any other comments or advice would be also helpful. >> >> Thanks in advance! >> >> -- Myung-Hwa Hwang >> >> > -- Myung-Hwa Hwang The CyberInfrastructure and Geospatial Information Laboratory, University of Illinois at Urbana-Champaign School of Geographical Sciences and Urban Planning, Arizona State University [email protected] or [email protected]
