LUBM (Lehigh University Benchmark) tutorial

This little tutorial teaches your step by step and use LUBM to benchmark your system.

1. The official site of lubm:http://swat.cse.lehigh.edu/projects/lubm/

2. Download files as follows:

-The Univ-ben benchmark Ontology:http://swat.cse.lehigh.edu/onto/univ-bench.owl

-The Data Generator (UBA) v1.7:http://swat.cse.lehigh.edu/projects/lubm/uba1.7.zip

-The tester (UBT) V1.1:http://swat.cse.lehigh.edu/projects/lubm/ubt1.1.zip

3. What LUBM does was that it provide a small ontology of college departments, classes and professors. A data generater generates arbitrary large abox statements. Different queries is provided in SPARQL 1.0 to test the system response time.

4. If you is using Linux, you need to download a fix for UBA data generator:http://swat.cse.lehigh.edu/projects/lubm/g Eneratorlinuxfix.zip

This fix makes sure the Generator works with Linux paths.

The reason is because UBA generates path with a ' \ ', but Linux uses '/' in the path.

You unzip this fix patch, it's called "Generator.java" as well.

You unzip the UBA v1.7, and go to Src/edu/lehigh/swat/bench/uba directory, to replace the original Generator.java with Thi S fix Generator.java

If You don't use the fix, it'll generate the data in the path like this:

/home/rui/desktop\university0_18.daml generated

But when you go to Desktop, it's not there. That's because Linux path doesn ' t support "\".

5. You need to compile the Java file.

My unzipped UBA v1.7 files are In/home/rui/desktop/uba1.7/src/edu/lehigh/swat/bench/uba directory

Yes, there is also a class directory in/home/rui/desktop/uba1.7/classes ..., but we aren't going to use it.

I Go To/home/rui/desktop/uba1.7/src/edu/lehigh/swat/bench/uba,

Then type the compile command:

javac-d/home/rui/desktop *.java

This command would compile all the Java file, and the compiled class would be stored in/home/rui/desktop.

After this, you go to Desktop, and you'll see a folder called "Edu".

You open this folder and you'll see that it's actually edu/lehigh/swat/bench/uba/*.class, these class files is what we Want.

6. Now we can run the data generator

You is now in Desktop directory, and run the command:

Java edu.lehigh.swat.bench.uba.generator-univ <value>-index <value>-seed <value>-daml <value >-onto <value>

Options
-univ number of universities to generate; 1 By default
-index starting index of the universities; 0 by default
-seed seed used for random data generation; 0 by default
-daml generate Daml+oil data; OWL data by default
-onto URL of the Univ-bench ontology (http://swat.cse.lehigh.edu/onto/univ-bench.owl) (http://www.lehigh.edu/~zhp2/ 2004/0401/univ-bench.owl [Easier for query Test])

7. You'll have the generated data then.

8. There is SPARQL 1.0 queries provided Here:http://swat.cse.lehigh.edu/projects/lubm/queries-sparql.txt

LUBM (Lehigh University benchmark) tutorial