The Lehigh University Benchmark (LUBM) is RDF and OWL benchmarking project. It consists of an OWL ontology and test generator software.
Questions tagged [lubm]
11 questions
3
votes
2 answers
Cannot extract RDF triple by locally defined predicate
Probably I just can't grasp some basic idea behind ontologies but here's my question. I'm trying to extract triples from an RDF storage (using 4store, but also tried XML ArmyKnife) with a SPARQL query specifying the predicate and get empty…
Anton Zherzdev
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3
votes
1 answer
SPARQL query on Marklogic with LUBM data
I'm using MarkLogic as an RDF server and LUBM datasets to test some of my access control policy. I have loaded some .owl files (created by LUBM generator) in MarkLogic. After that, when I explore database, it looks like this:
The problem is that…
Thanh Toai PHAN
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3
votes
2 answers
Load LUBM University data to Neo4j
I am trying to upload LUBM data set to Neo4j server. I went through neo4j tutorial and there is something called 'batch import'. To use that I should have two CSV files.
Nodes.CSV
Relations.CSV
The problem is in University data set there are nodes…
Isuru Herath
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2
votes
2 answers
LUBM benchmark classes
I have used Lehigh University Benchmark (LUBM) to test my application.
What I know about LUBM is that its ontology contains 43 classes.
But when I query over the classes I got 14 classes!
Also, when I used Sesame workbench and check the "Types in…
user3431350
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2
votes
1 answer
How to fix file paths in the LUBM generator?
I tried to generate 160000 pieces of data using the LUBM generator.
Unfortunately, the generator wrongly generates backslashes in file paths:
$ java -cp classes/ edu.lehigh.swat.bench.uba.Generator -onto…
isaac Lee
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1
vote
1 answer
Using Jena to convert an owl file to N-Triples from terminal returns an empty file
I have generated an owl file using this generator http://swat.cse.lehigh.edu/projects/lubm/
I want to transform the file in N-triples and have done it before using
$ riot -out N-TRIPLE ~/lubm20/*.owl > lubm20.nt
for some reason now I get an empty…
zaranaid
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1
vote
0 answers
About LUBM generator
When I make the data by LUBM generator, there are options however there is option called "-onto".
I got all the meaning of the options except that -onto options. I want to know about this option in details.
And secondly how can I test the queries…
jwl1993
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1
vote
1 answer
Configuring Jena Fuseki + inference and TDB?
I am new to Jenna TDB and Fuseki. I would like to load Lehigh University Benchmark (LUBM) data generated with their data generator (ver.1.7) in to Fuseki. This is about 400 .owl files. used the following Configuration file, that comes with Fuseki…
AR5HAM
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0
votes
0 answers
How to query a LUBM ontology?
How to query a LUBM ontology(extracted form given univ-bench.owl. given on the official site using generator) to find how many university it contains?
Priya Singh
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0
votes
1 answer
Members of child class are not classified as members of superclass in LUBM benchmark
I am trying to run the LUBM benchmark but I am having some troubles with classification after reasoning.
The files I am using are:
The main ontology
The output of the LUBM generator 1.7
The problem is that members of GraduateStudent and…
alessio-cpt
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0
votes
0 answers
SPARQL ARQ Query Execution
So I have this piece of Jena code, which basically tries to build a query using a Triple ElementTriplesBlock and finally using the QueryFactory.make(). Now I have a local Virtuoso instance set up and so my SPARQL end point is the localhost. i.e.…
N00bsie
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