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[Owllink-owlapi-developer] installation and usage

From: Wang, Rong-L. <Wan...@ep...> - 2016-07-07 18:55:01

Dear OWLlink developers:

I am working on an OWLAPI 4.2.5-based java application as a Maven project within Netbeans.  Could I get some step by step help with regard to installing OWLlink as project dependencies?  Does the latest OWLlink 1.2.2 even work for OWLAPI 4.2.5?

Thanks much for your assistance,

Rong-Lin Wang

[Owllink-owlapi-developer] support for OWL API 4.2.5

From: R-L W. <rl...@gm...> - 2016-07-06 16:22:41

Hi,

This link, http://owllink-owlapi.sourceforge.net/download.html, says
OWLlink API 1.2.2 supports OWL API 3.2.  Is it going to work for OWL API
4.2.5?

Thanks,

-- 
Rong-Lin Wang

Re: [Owllink-owlapi-developer] Owllink-owlapi-developer Digest, Vol 5, Issue 1

From: Thorsten L. <li...@de...> - 2014-12-12 22:28:26

Attachments: smime.p7s

Frans,

unfortunately this is not possible and honestly a rather rare query.
There is a Told Data Access extension of OWLlink (which is currently not 
supported by any reasoner according to my knowledge) which at least 
would allow to query for the previously told domain as well as range 
axioms of a property. However, this would not include any inferred 
domains or ranges.

Best
Thorsten

On 10.12.14 18:20, 
owl...@li... wrote:
> Message: 4
> Date: Mon, 10 Nov 2014 18:52:54 +0100
> From: "frans@planet"<fra...@pl...>
> Subject: [Owllink-owlapi-developer] Retrieving sources for rdfs:domain
> To:owl...@li...
> Message-ID:<724...@pl...>
> Content-Type: text/plain; charset=us-ascii
>
> Is it possible to retrieve the sources for rdfs:domain for a certain class with the core of OWLlink?
>
> If I loadhttp://www.owllink.org/ontologies/primer.owl  in a KB and I would ask for the sources for rdfs:domain for families:Man this should yield families:hasWife, and for families:Person this should yield families:hasAge.
>
> Regards,
> Frans de Boer

-- 
Dr. Thorsten Liebig
Tel. +49 731 502 4207
mailto:li...@de...

derivo GmbH <http://www.derivo.de>
James-Franck-Ring, D-89081 Ulm
Amtsgericht Ulm, HRB 725444
Geschäftsführer: Dr. Thorsten Liebig

Re: [Owllink-owlapi-developer] Owllink-owlapi-developer Digest, Vol 5, Issue 1

From: Thorsten L. <li...@de...> - 2014-12-12 22:28:24

Attachments: smime.p7s

Hi Jan,

with respect to the C#/.NET client it is perfectly possible to link to a 
Java based server (that is what OWLlink is for). However, if the 
mentioned software package will do the job is not clear to me (if it 
conforms to the standard it will but I don't know the particular 
implementation you refer to).

Concerning SWRL it depends. OWLlink as of today is not capable of 
"speaking" SWRL. There could be an extension to support SWRL but I'm not 
aware of any extension specification or implementation.
However, if you just want to do standard queries (OWLlink Asks) you 
could try to load the SWRL ontology via OWL API to an OWLlink server 
with HermiT and then use OWLlink requests.

Best
Thorsten

On 10.12.14 18:20, 
owl...@li... wrote:
> Date: Wed, 10 Dec 2014 18:20:24 +0100
> From: "Jan Alberts"<jan...@gm...>
> Subject: [Owllink-owlapi-developer] OWLlink C# and SWRL inferencing
> To:<owl...@li...>
> Message-ID:<006901d0149d$963a0470$c2ae0d50$@gmail.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi at all,
>
>
>
> I am new to the topic KBS and ontologies and have some questions about the
> integration and application of OWLlink in c#.
>
>
>
> For a bachelor thesis I have to select a SWRL Reasoner for a KBS and program
> an demonstrator. Unfortunately there is the requirement to support C# or
> .NET.
>
> I found a C# version of OWLlink API made by a PHD student:
> http://users.encs.concordia.ca/~pa_eid/PhD/index.html
>
> My idea is to make a HermiT Java Server, which communicates via OWLlink with
> my .NET application using OWLlink C#. So my main application in .NET uses an
> independent Java reasoner for the SWRL inferencing.
>
>
>
> My questions:
>
> .         Is that possible?
>
> .         Will there be full SWRL support?
>
> o   I think yes, because the reasoner which does the inference of the SWRL
> knowledge base is independent from the .NET application, but as I said, I am
> new to the topic.
>
>
>
> Could you help me about that?
>
> Thanks a lot and best wishes,
>
>
>
> Jan

-- 
Dr. Thorsten Liebig
Tel. +49 731 502 4207
mailto:li...@de...

derivo GmbH <http://www.derivo.de>
James-Franck-Ring, D-89081 Ulm
Amtsgericht Ulm, HRB 725444
Geschäftsführer: Dr. Thorsten Liebig

[Owllink-owlapi-developer] OWLlink C# and SWRL inferencing

From: Jan A. <jan...@gm...> - 2014-12-10 17:20:37

Hi at all,

 

I am new to the topic KBS and ontologies and have some questions about the
integration and application of OWLlink in c#.

 

For a bachelor thesis I have to select a SWRL Reasoner for a KBS and program
an demonstrator. Unfortunately there is the requirement to support C# or
.NET.

I found a C# version of OWLlink API made by a PHD student:
http://users.encs.concordia.ca/~pa_eid/PhD/index.html

My idea is to make a HermiT Java Server, which communicates via OWLlink with
my .NET application using OWLlink C#. So my main application in .NET uses an
independent Java reasoner for the SWRL inferencing.

 

My questions:

.         Is that possible?

.         Will there be full SWRL support?

o   I think yes, because the reasoner which does the inference of the SWRL
knowledge base is independent from the .NET application, but as I said, I am
new to the topic.

 

Could you help me about that?

Thanks a lot and best wishes,

 

Jan

[Owllink-owlapi-developer] Retrieving sources for rdfs:domain

From: <fr...@pl...> - 2014-11-10 17:53:06

Is it possible to retrieve the sources for rdfs:domain for a certain class with the core of OWLlink?

If I load http://www.owllink.org/ontologies/primer.owl in a KB and I would ask for the sources for rdfs:domain for families:Man this should yield families:hasWife, and for families:Person this should yield families:hasAge.

Regards,
Frans de Boer

Re: [Owllink-owlapi-developer] running owllink on a load sharing facility

From: Olaf N. <no...@de...> - 2011-10-11 09:15:45

Hi Sarala,

it is one of the important feature to run an OWLlink server on one 
machine and to run OWLlink clients on another machines. For example, if 
the Pellet server is started on a computer X, it will listen for 
incoming connection on the specified port and the IP address of X. You 
need to configure the client with the help of a 
"OWLlinkReasonerConfiguration":

OWLlinkReasonerConfiguration config = new 
OWLlinkReasonerConfiguration(new URL("http://<address>:<port>"));
OWLReasoner reasoner = new 
OWLlinktHTTPXMLReasonerFactory().createNonBufferingReasoner( <your 
ontology>, config);

where <address> corresponds to the IP address of the computer X,
<port> corresponds to the port specified by starting the Pellet server 
(e.g. 8080).

Hope it helps you.

Cheers,
Olaf

> Hi,
>
> I'm using OWLlink (Pellet server) to reason over several large ontologies.
> However this requires a lot of memory and I'm wondering whether it is
> possible to run OWLlink on a load sharing facility.
>
> Many thanks in advance.
> Sarala
>
>
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure contains a
> definitive record of customers, application performance, security
> threats, fraudulent activity and more. Splunk takes this data and makes
> sense of it. Business sense. IT sense. Common sense.
> http://p.sf.net/sfu/splunk-d2dcopy1
> _______________________________________________
> Owllink-owlapi-developer mailing list
> Owl...@li...
> https://lists.sourceforge.net/lists/listinfo/owllink-owlapi-developer

[Owllink-owlapi-developer] running owllink on a load sharing facility

From: <sa...@eb...> - 2011-10-10 08:50:41

Hi,

I'm using OWLlink (Pellet server) to reason over several large ontologies.
However this requires a lot of memory and I'm wondering whether it is
possible to run OWLlink on a load sharing facility.

Many thanks in advance.
Sarala

[Owllink-owlapi-developer] Owllink and SWRL

From: simone m. <sim...@gm...> - 2011-09-05 13:37:39

I'm working with the latest release of OWLlink (1.2.1) and OWLAPI (3.2.4).
In my ontology there are some SWRL. When i try to send, throught OWLlink,
the ontology to the Reasoner (use HermiT 1.3.4) an exception will be
generated :

java.lang.NullPointerException
at java.util.TreeSet.addAll(Unknown Source)
at java.util.TreeSet.<init>(Unknown Source)
at uk.ac.manchester.cs.owl.owlapi.SWRLRuleImpl.<init>(SWRLRuleImpl.java:63)
at
uk.ac.manchester.cs.owl.owlapi.OWLDataFactoryImpl.getSWRLRule(OWLDataFactoryImpl.java:1276)
at
org.coode.owlapi.owlxmlparser.SWRLRuleElementHandler.createAxiom(SWRLRuleElementHandler.java:28)
at
org.coode.owlapi.owlxmlparser.AbstractOWLAxiomElementHandler.endElement(AbstractOWLAxiomElementHandler.java:58)
at
org.semanticweb.owlapi.owllink.parser.MyOWLXMLParserHandler.endElement(MyOWLXMLParserHandler.java:898)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown
Source)
at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
Source)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
Source)
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown
Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at javax.xml.parsers.SAXParser.parse(Unknown Source)
at
org.semanticweb.owlapi.owllink.server.OWLlinkReasonerBridge.process(OWLlinkReasonerBridge.java:202)
at
org.semanticweb.owlapi.owllink.server.OWLlinkReasonerBridge.process(OWLlinkReasonerBridge.java:176)
at
org.semanticweb.owlapi.owllink.server.OWLlinkHTTPXMLServer.handle(OWLlinkHTTPXMLServer.java:76)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
at org.mortbay.http.HttpServer.service(HttpServer.java:909)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:982)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

My question is: the latest version of OWLlink support the SWRL? or i use
OWLlink in a wrong way?

Thank you very much.

Simone

Re: [Owllink-owlapi-developer] Examples

From: <sa...@eb...> - 2010-11-19 15:16:13

Hi Marko,

Thanks for the links. I was hoping for some java examples so that I get to
a fast start. I have started reading some of the documents but I'm still
struggling to understand some of the basics. I'm not an Ontology expert.

Here's a method that I'm playing around with. According the documentation
this creates a new KB. However, getPublicKBs() returns an empty set. I'm
confused about the root ontology and KBs as well. At the moment I'm only
interested in one KB but multiple clients accessing it. In order to get
access to a reasoner I need to call
factory.createNonBufferingReasoner(ontology, reasonerConfiguration) which
means I need to create a root ontology from each client. What does this
mean? How do I call a previously created KB from a new client?

 public void getInfo(){
        try {
            ontology = manager.loadOntology(IRI.create(new
File("ontologies/quality.owl")));
        } catch (OWLOntologyCreationException e) {
            e.printStackTrace();
        }

        URL url = null;
        try {
            url = new URL("http://localhost:8081");
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }

        OWLlinkReasonerConfiguration reasonerConfiguration = new
OWLlinkReasonerConfiguration(url);
        OWLlinkHTTPXMLReasonerFactory factory = new
OWLlinkHTTPXMLReasonerFactory();
        reasoner = factory.createNonBufferingReasoner(ontology,
reasonerConfiguration);

        IRI defaultIRI = ((OWLlinkHTTPXMLReasoner)reasoner).getDefaultKB();

        GetDescription getDescription = new GetDescription();
        Description response = reasoner.answer(getDescription);
        System.out.println(response.getPublicKBs().isEmpty());

        GetAllClasses getAllClasses = new GetAllClasses(defaultIRI);
        SetOfClasses classResponse = reasoner.answer(getAllClasses);
        System.out.println(classResponse.size());

    }

Many thanks in advance,
Sarala

> Hi Sarala,
>
> the OWLlink protocol specification can be found at
> <http://www.w3.org/Submission/owllink-structural-specification/> and the
> one of the HTTP/XML binding that is implemented by the OWLlink API at
> <http://www.w3.org/Submission/owllink-httpxml-binding/>. Extensive
> examples for the different OWLlink bindings can be found at
> <http://www.owllink.org/examples.html>.
>
> However, as you are using OWLlink via the OWLlink API that is layered on
> top of the OWL API, you might want to look also at the Java code examples
> for the OWL API at <http://owlapi.sourceforge.net/documentation.html>.
>
> Marko
>
> On 17.11.2010, at 14:04, sa...@eb... wrote:
>
>> Hi,
>>
>> I'm trying to get started with owllink. Are there any examples that I
>> can
>> follow except the ones on
>> http://owllink-owlapi.sourceforge.net/documentation.html.
>>
>> Cheers,
>> Sarala
>>
>>
>> ------------------------------------------------------------------------------
>> Beautiful is writing same markup. Internet Explorer 9 supports
>> standards for HTML5, CSS3, SVG 1.1,  ECMAScript5, and DOM L2 & L3.
>> Spend less time writing and  rewriting code and more time creating great
>> experiences on the web. Be a part of the beta today
>> http://p.sf.net/sfu/msIE9-sfdev2dev
>> _______________________________________________
>> Owllink-owlapi-developer mailing list
>> Owl...@li...
>> https://lists.sourceforge.net/lists/listinfo/owllink-owlapi-developer
>
>
>
> --
> Dr. Marko Luther
> Phone:  +49-89-56824-204  mailto:lu...@do...
> Fax:      +49-89-56824-301  <http://www.docomolab-euro.com>
> Mobile: +49 172-855 7763
>
> DOCOMO Communications Laboratories Europe GmbH
> Landsberger Strasse 312, 80687 Munich, Germany
> Geschäftsführer: Dr. Masami Yabusaki, Naoki Tani, Seiichi Ikeda
> Amtsgericht München, HRB 132967
>
>

Re: [Owllink-owlapi-developer] Examples

From: Marko L. <lu...@do...> - 2010-11-18 08:13:26

Attachments: smime.p7s

Hi Sarala,

the OWLlink protocol specification can be found at <http://www.w3.org/Submission/owllink-structural-specification/> and the one of the HTTP/XML binding that is implemented by the OWLlink API at <http://www.w3.org/Submission/owllink-httpxml-binding/>. Extensive examples for the different OWLlink bindings can be found at <http://www.owllink.org/examples.html>.

However, as you are using OWLlink via the OWLlink API that is layered on top of the OWL API, you might want to look also at the Java code examples for the OWL API at <http://owlapi.sourceforge.net/documentation.html>.

Marko

On 17.11.2010, at 14:04, sa...@eb... wrote:

> Hi,
> 
> I'm trying to get started with owllink. Are there any examples that I can
> follow except the ones on
> http://owllink-owlapi.sourceforge.net/documentation.html.
> 
> Cheers,
> Sarala
> 
> 
> ------------------------------------------------------------------------------
> Beautiful is writing same markup. Internet Explorer 9 supports
> standards for HTML5, CSS3, SVG 1.1,  ECMAScript5, and DOM L2 & L3.
> Spend less time writing and  rewriting code and more time creating great
> experiences on the web. Be a part of the beta today
> http://p.sf.net/sfu/msIE9-sfdev2dev
> _______________________________________________
> Owllink-owlapi-developer mailing list
> Owl...@li...
> https://lists.sourceforge.net/lists/listinfo/owllink-owlapi-developer

--
Dr. Marko Luther
Phone:  +49-89-56824-204  mailto:lu...@do...
Fax:      +49-89-56824-301  <http://www.docomolab-euro.com>
Mobile: +49 172-855 7763

DOCOMO Communications Laboratories Europe GmbH
Landsberger Strasse 312, 80687 Munich, Germany
Geschäftsführer: Dr. Masami Yabusaki, Naoki Tani, Seiichi Ikeda
Amtsgericht München, HRB 132967

[Owllink-owlapi-developer] OWLlink API usecase

From: <sa...@eb...> - 2010-11-17 16:13:03

Hi,

I'm struggling to understand how to use OWLlink API to do what I want.

I have an owl file which imports EL versions of FMA, GO, PATO etc.
Reasoning over this each time takes a long time. What I would like to do
is to set up a pellet-owllink server with a reasoned/inferred copy which
clients can then access to run Manchester queries. How do I go about doing
this?

Cheers,
Sarala

[Owllink-owlapi-developer] Examples

From: <sa...@eb...> - 2010-11-17 13:47:12

Hi,

I'm trying to get started with owllink. Are there any examples that I can
follow except the ones on
http://owllink-owlapi.sourceforge.net/documentation.html.

Cheers,
Sarala

Re: [Owllink-owlapi-developer] problem running pellet OWLlink server

From: <sa...@eb...> - 2010-11-17 13:16:19

Hi Olaf,

Thanks for your reply. It's actually
Exception in thread "main" java.lang.NoClassDefFoundError: Files
Caused by: java.lang.ClassNotFoundException: Files
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: Files.  Program will exit.

I got everything working on linux but would be nice to get it working on
windows as well.

Cheers,
Sarala

Re: [Owllink-owlapi-developer] problem running pellet OWLlink server

From: Olaf N. <no...@de...> - 2010-11-16 10:21:57

> Hi,
>
> I'm trying to get pellet OWLlink server running. Unfortunately, I'm having
> trouble getting it to work on windows. Is there any thing else I need to
> do except copying the pellet jars into pellet-server-OWLAPI3/lib.
>
> Cheers,
> Sarala
Hi Sarala,

you are right, one only needs to copy the pellet jar files into 
pellet-server-OWLAPI3/lib. Then one can run the start-pellet batch 
script. We have just tested it and it runs fine. Please make sure that 
you are using the latest pellet version (it must support the OWL API 
3.1) and the latest OWLlink API version (supporting OWL API 3.1).

Can you specify in more detail what problems you encountered (e.g. java 
exceptions stack trace)?

Cheers,
Olaf

[Owllink-owlapi-developer] problem running pellet OWLlink server

From: <sa...@eb...> - 2010-11-15 12:37:02

Hi,

I'm trying to get pellet OWLlink server running. Unfortunately, I'm having
trouble getting it to work on windows. Is there any thing else I need to
do except copying the pellet jars into pellet-server-OWLAPI3/lib.

Cheers,
Sarala