rdfapi-php-interest — general forum for RAP feature requests, bug reports, patches, and use cases

Re: [Rdfapi-php-interest] SparqlEngineDb status

[Christian W. <cw...@cw...>]

Bart,

> are there any plans to implement json results for sparql queries?
> http://www.w3.org/TR/rdf-sparql-json-res/
I do not have planned this, but your query reminds me that both sparql
engines should get a proper plugin-based output rendering. With that, it
should be easy to add a json renderer.

--=20
Regards/Mit freundlichen Gr=FC=DFen
Christian Weiske

Re: [Rdfapi-php-interest] SparqlEngineDb status

[Bart P. <bar...@el...>]

Hi,

are there any plans to implement json results for sparql queries?
http://www.w3.org/TR/rdf-sparql-json-res/

It would be nice to use dojo.data to query a RAP DB
http://dojotoolkit.org/node/98

Greetings

Bart


Christian Weiske schrieb:
> Hello all,
> 
> 
> I'm proud I can announce that my SparqlEngineDb implementation went a
> big step forward and has ORDER BY and LIMIT/OFFSET support now. ORDER BY
> support was really tricky, since data have to be sorted not the way the
> database sorts the blob values, but by their resource type (blank,
> literal, resource) and then according to the sorting rules that their
> XSD schema type specifies (which was a problem since the integers are
> stored as blobs/strings, and the DBMS does not know that they are meant
> to be integers).

> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest

Re: [Rdfapi-php-interest] SparqlEngineDb status

[Christian W. <cw...@cw...>]

Chris,


> How is the status with the filters. Does your code currently use Tobias=

> old filtering approach or doesn't it do any filtering at all?
I am currently not filtering at all. Further, I don't want to use Tobias
code since it is hackish and maybe used to execute any code as we saw a
month ago.

> If the code supports filters, it would be cool if you would submit a
> pre-release version of your engine to the RAP CVS, so that other peole
> can play with the code.
Erm, I am regularly submitting my code to CVS and you can actually play
with it right now
- there is even an example script in test/,


--=20
Regards/Mit freundlichen Gr=C3=BC=C3=9Fen
Christian Weiske

Re: [Rdfapi-php-interest] SparqlEngineDb status

[Chris B. <ch...@bi...>]

Hi Christian,

sounds great :-)

How is the status with the filters. Does your code currently use 
Tobias old filtering approach or doesn't it do any filtering at all?

If the code supports filters, it would be cool if you would submit a 
pre-release version of your engine to the RAP CVS, so that other peole 
can play with the code.

Keep up the great work!

Chris


--
Dr. Chris Bizer
Freie Universität Berlin
Phone: +49 30 838 54057
Mail: ch...@bi...
Web: www.bizer.de

----- Original Message ----- 
From: "Christian Weiske" <cw...@cw...>
To: <rdf...@li...>
Cc: <ak...@in...>
Sent: Friday, March 23, 2007 12:45 PM
Subject: [Rdfapi-php-interest] SparqlEngineDb status


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[Rdfapi-php-interest] SparqlEngineDb status

[Christian W. <cw...@cw...>]

Hello all,


I'm proud I can announce that my SparqlEngineDb implementation went a
big step forward and has ORDER BY and LIMIT/OFFSET support now. ORDER BY
support was really tricky, since data have to be sorted not the way the
database sorts the blob values, but by their resource type (blank,
literal, resource) and then according to the sorting rules that their
XSD schema type specifies (which was a problem since the integers are
stored as blobs/strings, and the DBMS does not know that they are meant
to be integers).

I got that working yesterday, and today I finished LIMIT/OFFSET support
(I had to do that myself since the queries to the database could
unfortunately not be pressed in a single query, imploded with UNION -
the sort order would vanish there).

This means that currently the basics are working, and the three first
big unit test groups (dawg, sort and limit-offset) are passed now. It
also has support for all query types (ASK, COUNT, SELECT, DESCRIBE,
CONSTRUCT) now.


Since OntoWiki is switching to use Sparql internally to query the
databases, my next step is to implement prepared statement support -
parsing the sparql queries and creating sql statements takes some time,
and it would speed things up greatly if this would need to be done only
once when doing 500 queries in a row.

When I have finished prepared statements, I will begin adding support
for FILTERs. This will be another challenging task, since there is
currently no Filter parser for sparql queries - this needs to be done
before I can actually implement the filters in the db engine.

--=20
Regards/Mit freundlichen Gr=C3=BC=C3=9Fen
Christian Weiske

[Rdfapi-php-interest] CfP: SABRE Conference on Social Semantic Web (CSSW 2007)

[Chris B. <ch...@bi...>]

Call for Papers: SABRE Conference on

         SOCIAL SEMANTIC WEB (CSSW 2007)

         http://aksw.org/cssw

         September 26-28th, Leipzig, Germany
________________________________________________________________________


The concept of Social Software was coined to characterize a variety of
software and services on the Web, which enable new ways of 
communication
and exploit social interactions for creating large content bases from 
a
multitude of user contributions. The Semantic Web is a extension of 
the
current Web aiming at enhanced search and navigation facilities and at
integrating information from multiple sources. A question at the 
moment
actively discussed in conference panels, visionary papers and project
proposals is how the different approaches Social Software and Semantic
Web can be combined in a synergetic way.

CSSW will provide a podium for the rapidly emerging field of 
approaches
aiming at exploiting Social Software concepts for the bootstrapping of
the Semantic Web and lifting Social Software to the semantic
collaboration level. CSSW aims at combining three different 
perspectives
on the Social Semantic Web:
* the business and entrepreneurial perspective, focusing on the added
   value of specific social semantic web applications,
* the technical perspective, which enables and supports the 
exploitation
   of the "ant intelligence" of social networks,
* the social perspective, which explores motivations, benefits and
   emergent effects.
CSSW targets to bring these three perspectives together, to widen
existing horizons, to create novel ideas and to find new ways of
understanding this emerging field.


INVITED TALK

Kingsley Idehen will give an invited talk on "Hello Data Web - 
Exposing
the Data Web". Kingsley is Founder, President and CEO of OpenLink
Software, a leading provider of high-performance Universal Data 
Access,
Data Integration, Hybrid Database Engine technology and developer of 
the
Virtuoso Server. With his entrepreneurial experience, his 
contributions
to the technical foundations of the future Web and his backing of the
Open Data initiatives he ideally combines the different perspectives 
on
the Social Semantic Web.


TOPICS OF INTEREST

CSSW covers all topics related to Social Semantic Collaboration (SSC) 
in
Web based environments. Typical topics of interest include (but are 
not
limited to):

Economic / Entrepreneurial Perspective
  * Business aspects of SSC
  * Economies of attention for semantic collaboration
  * Business models for SSC
  * Models measuring costs/benefits of SSC
  * Authentication, authorization and accounting - policies, charging 
and
    billing models for social software
  * Experimental use cases in areas of telecommunication, dating,
    recruitment, eTourism, eBusiness, eGovernment, etc.

Technical Perspective
  * Applying Social Software strategies such as tagging, mashups for 
SSC
  * Semantic Data Web: browsers and end-points
  * Extracting and interlinking semantic content from existing
    information sources, e.g. Wikipedia, MusicBrainz, GeoNames
  * Collaborative, community-driven ontology construction
  * Combining existing ontologies and schemata, social ontology 
sharing
    and matching techniques
  * Reasoning supporting adaptive semantic collaboration, e.g.
    instance driven learning of Description Logic concepts
  * Storage, inference and caching for scalable SSC
  * Exposing and interconnecting Web-APIs as light-weight
    Semantic Web Services
  * Social Semantic Web and Mobile services
  * User-interface components, template languages supporting SSC

Social Perspective
  * Analysis, visualization, presentation of social networks
  * Approaches combining Social Software & Semantic Web
  * Group management, presence, social interaction enablers
    in mobile service platforms
  * Strategies for implementing architectures of semantic 
participation
  * Trust and privacy issues in social software
  * Implementation of gratification and reward systems
  * Quality analysis of socially generated semantic content
  * Analysis of motivations and behavior of social software users
  * Knowledge acquisition and ontology management in SSC
  * Analysis of emergent effects within social software


SUBMISSIONS

Authors are invited to submit original papers of the following types:

  * Research papers - maximum 10 pages
  * Posters - 4 pages
  * Demo papers - 4 pages

Submissions should be formatted according to GI-LNI style and 
submitted
in PDF format. Submission details will be found on the conference
homepage at http://aksw.org/cssw.
All papers will be published in GI Lecture Notes in Informatics (LNI).
Best papers from CSSW 2007 will be considered for revision, extension,
and publication in a special issue of the Journal of Online 
Engineering.


DATES AND FORMAT

Paper, demo, poster submission: June 1st
The submission deadline is strict, no extensions will be given.

Notification of acceptance: July 25th

Conference: September 26-28th

CSSW will be a two day conference with possible workshops:
  * First day / 26th: 3 research paper sessions, demo and poster 
session
  * Second day / 27th: invited speaker, 2 research paper sessions,
    concluding panel discussion
  * Third day / 28th: workshops:
    Softwiki project meeting, dbpedia.org community convention

Paper acceptance is strictly limited to maximum 18 research papers.
Additionally, poster and demo submissions are possible.


CONFERENCE ORGANIZERS

Sören Auer, Universität Leipzig and University of Pennsylvania, USA
Chris Bizer, FU Berlin, Germany
Claudia Mueller, Universität Potsdam, Germany
Anna V. Zhdanova, University of Surrey, UK

--
Dr. Chris Bizer
Freie Universität Berlin
Phone: +49 30 838 54057
Mail: ch...@bi...
Web: www.bizer.de

Re: [Rdfapi-php-interest] adodb too old

[Chris B. <ch...@bi...>]

Hi Christian,

> Hi,
>
>
>> Some of the SQL queries generated by SparqlEngineDb are recognized as
>> "invalid" by AdoDB, giving me an SQL error exception.
>> The queries can be executed without problem using phpMyAdmin.
>> Updating adodb to the current version also helps.
>>
>> Is there a reason the adodb version in CVS is so old? Can we update it?

No reason. Please update.

Cheers

Chris


>Bump.
>
>-- 
>Regards/Mit freundlichen Grüßen
>Christian Weiske

--
Chris Bizer
Freie Universität Berlin
Phone: +49 30 838 54057
Mail: ch...@bi...
Web: www.bizer.de

----- Original Message ----- 
From: "Christian Weiske" <cw...@cw...>
To: <rdf...@li...>
Sent: Monday, March 12, 2007 11:13 AM
Subject: Re: [Rdfapi-php-interest] adodb too old


> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
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> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
> 

Re: [Rdfapi-php-interest] adodb too old

[Christian W. <cw...@cw...>]

Hi,


> Some of the SQL queries generated by SparqlEngineDb are recognized as
> "invalid" by AdoDB, giving me an SQL error exception.
> The queries can be executed without problem using phpMyAdmin.
> Updating adodb to the current version also helps.
>=20
> Is there a reason the adodb version in CVS is so old? Can we update it?=


Bump.

--=20
Regards/Mit freundlichen Gr=FC=DFen
Christian Weiske

[Rdfapi-php-interest] Fw: About Installing RAP in EASY PHP 1-7

[Chris B. <ch...@bi...>]

No idea. Does anybody know if there is something special about EASY PHP =
1-7?

Cheers,

Chris

----- Original Message -----=20
From: nalanchakaravathi Anand=20
To: ch...@bi...=20
Sent: Sunday, March 11, 2007 10:59 AM
Subject: About Installing RAP in EASY PHP 1-7


From
    N.R.Ananthanarayanan,
  =20

Sir,
      I could not able to install RAP in EASY PHP 1-7. Can you guide me =
to=20
install RAP in PHP

Awaiting for your reply

Thanking you
N.R.Ananthanarayanan.



-------------------------------------------------------------------------=
-------
Don't get soaked. Take a quick peek at the forecast=20
with theYahoo! Search weather shortcut.

Re: [Rdfapi-php-interest] OWL ontology - example

[Eugenio T. <eug...@un...>]

At 18.32 10/03/2007 +0100, you wrote:
 ><album rdf:ID="album1">
 >	<has_title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">My
 >album</has_result>
 ></album>

It's of course </has_title> and not </has_result>.


Eugenio.

[Rdfapi-php-interest] OWL ontology - example

[Eugenio T. <eug...@un...>]

Hello,
I already wrote in the past a message about the OWL feature of RAP; 
this time I'm trying to be more specific in order to get a reply.

I know that, about the OntModel API, the documentation 
(http://sites.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/tutorial/usingtheOntModelAPI.htm) 
says:

"Actually only RDFS vocabulary is supported. An OWL vocabulary will 
be implemented in the near future"

But what I can't understand at the moment (and maybe this is due to 
my current knowledge of RDF, RDFS and OWL) is about the possibility, 
using the vocabularies feature 
(http://sites.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/tutorial/vocabularies.htm) 
and including the OWL vocabulary, to produce a simple OWL ontology 
from a PHP application. For example I want to describe a simple 
ontology in which the only class is the album class and the only 
property is the has_title property, I also want to put a 
maxCardinality restriction and to describe the "album1" 
individual...can I produce through RAP a file having the content I paste below?

Thanks a lot in advance.

Eugenio.

<owl:Class rdf:ID="album" />
	<rdfs:subClassOf>
		<owl:Restriction>
			<owl:maxCardinality 
rdf:datatype="http://www.w3.org/2001/XMLSchema#int">1</owl:maxCardinality>
			<owl:onProperty>
				<owl:DatatypeProperty rdf:ID="has_title"/>
			</owl:onProperty>
		</owl:Restriction>
	</rdfs:subClassOf>
</owl:Class>

<owl:DatatypeProperty rdf:about="#has_title">
	<rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#string"/>
</owl:DatatypeProperty>

<album rdf:ID="album1">
	<has_title rdf:datatype="http://www.w3.org/2001/XMLSchema#string">My 
album</has_result>
</album>

Re: [Rdfapi-php-interest] Error accessing some methods

[Richard C. <ri...@cy...>]

I haven't looked into this, but maybe the methods are just missing  
from ResModel, which provides not quite the same API as the simpler  
Model class. (I could be totally wrong.)

Richard



On 9 Mar 2007, at 13:38, Michel Gutierrez wrote:

>
> I haven't found a workaround for this issue so far. I presume the RAP
> library does not work for linux.
>
> Can anyone recommend another php library for parsing rdf that would  
> work
>  on linux with php 4.3 ?
>
>
> Michel Gutierrez wrote:
>> Hi,
>>
>> There are several methods i cannot access from the api:
>>
>> ...
>> $model = ModelFactory::getResModel(MEMMODEL);
>> $model->load($path);
>> $modeModel=$model->find($modeInfo,null,null);
>> $it=$model->findAsIterator($modeInfo,NULL,NULL);
>>
>> the find() method is ok, but findAsIterator() generates an error:  
>> Fatal
>> error: Call to undefined function: findasiterator() in  ...
>>
>> Prior to executing this code i do:
>>
>> define("RDFAPI_INCLUDE_DIR", "/usr/share/php/rdfapi-php/api/");
>> include_once('/usr/share/php/rdfapi-php/api/RdfAPI.php');
>>
>> What did i miss ?
>>
>> /mig
>>
>> --------------------------------------------------------------------- 
>> ----
>> Take Surveys. Earn Cash. Influence the Future of IT
>> Join SourceForge.net's Techsay panel and you'll get the chance to  
>> share your
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>> page=join.php&p=sourceforge&CID=DEVDEV
>> _______________________________________________
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>> Rdf...@li...
>> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
>>
>
>
> ---------------------------------------------------------------------- 
> ---
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> share your
> opinions on IT & business topics through brief surveys-and earn cash
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> page=join.php&p=sourceforge&CID=DEVDEV
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>

Re: [Rdfapi-php-interest] Error accessing some methods

[Michel G. <mic...@gm...>]

I haven't found a workaround for this issue so far. I presume the RAP
library does not work for linux.

Can anyone recommend another php library for parsing rdf that would work
 on linux with php 4.3 ?


Michel Gutierrez wrote:
> Hi,
> 
> There are several methods i cannot access from the api:
> 
> ...
> $model = ModelFactory::getResModel(MEMMODEL);
> $model->load($path);
> $modeModel=$model->find($modeInfo,null,null);
> $it=$model->findAsIterator($modeInfo,NULL,NULL);
> 
> the find() method is ok, but findAsIterator() generates an error: Fatal
> error: Call to undefined function: findasiterator() in  ...
> 
> Prior to executing this code i do:
> 
> define("RDFAPI_INCLUDE_DIR", "/usr/share/php/rdfapi-php/api/");
> include_once('/usr/share/php/rdfapi-php/api/RdfAPI.php');
> 
> What did i miss ?
> 
> /mig
> 
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys-and earn cash
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> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
> 

Re: [Rdfapi-php-interest] RAP / PHP5

[Chris B. <ch...@bi...>]

Hi Christian,

> What is the official statement of the RAP team regarding PHP5?

We would love to have the complete code moved to PHP5 using stuff like PHP 
iterators and PHP exeptions.
Tobias started this once, but then moved to other projects :-(

> All of the existing Sparql code is already PHP5, and my new one follows that.
> There is IMO no need to rewrite it to make it PHP4 compatible, since PHP5 is 
> there since 3 years now and brought many improvements regarding OO and its 
> implementation.
>
> So, shall backward compatibility to PHP4 be kept where it is currently usable 
> in all way? Is it ok to write PHP5-only code for new functionality not 
> affecting the current?

PHP5-only code for new features is fine.

Keep up the great work!

Cheers

Chris


>
>
> Regards,
> Christian
>
> -------------------------------------------------------------------------
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to share your
> opinions on IT & business topics through brief surveys-and earn cash
> http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
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[Rdfapi-php-interest] RAP / PHP5

[Christian W. <cw...@cw...>]

Hello,


What is the official statement of the RAP team regarding PHP5?
All of the existing Sparql code is already PHP5, and my new one follows that.
There is IMO no need to rewrite it to make it PHP4 compatible, since PHP5 is there since 3 years now and brought many improvements regarding OO and its implementation.

So, shall backward compatibility to PHP4 be kept where it is currently usable in all way? Is it ok to write PHP5-only code for new functionality not affecting the current?


Regards,
Christian

[Rdfapi-php-interest] File inclusion technique

[Christian W. <cw...@cw...>]

Hello,


Currently all possible needed/used files are included by require'ing a central file for each group of files, e.g sparql/SPARQL.php that includes all of the files in the directory.

In my opinion it would be performance-wise better to let the files themselves include only the classes they need, e.g. SparqlEngineDb.php includes SparqlEngine and other dependencies itself. PHP has a very fast checking mechanism so that doing it that way would not slow down RAP at all, and would give us the benefit of not using so much memory as we don't include all the php files.


Christian

[Rdfapi-php-interest] 2nd CFP: Scripting for the Semantic Web, Workshop and Challenge at ESWC2007

[Tom H. <tom...@gm...>]

** apologies if you get multiple copies of this message **

The deadline for full paper, short paper, and Scripting Challenge
submissions  to the 3rd Workshop on Scripting for the Semantic Web is
approaching (30th March). Submissions can be made via the conference
submission system linked from <http://semanticscripting.org/SFSW2007/>

Update: Danny Ayers will give an invited talk at SFSW07 about "Two Webs!"

-------------------------------------------------------
CALL FOR PAPERS
-------------------------------------------------------

3rd Workshop on Scripting for the Semantic Web
http://www.semanticscripting.org/SFSW2007/

co-located with
4th European Semantic Web Conference
June 6 or 7 2007, Innsbruck, Austria

-------------------------------------------------------

Scripting languages such as PHP, JavaScript, Ruby, Python, Perl, JSP
and ActionScript are playing a central role in current development
towards flexible, lightweight web applications following the AJAX and
REST design paradigms. These languages are the tools of a generation
of web programmers who use them to quickly create server and
client-side web applications. Many deployed Semantic Web applications
from the FOAF, RSS/ATOM, blog and wiki communities, as well as many
innovative mashups from the Web 2.0 and Open Data movements are using
scripting languages and it is likely that the process of RDF-izing
existing database-backed websites, wikis, weblogs and CMS will largely
rely on scripting languages.

The workshop aims to bring together developers of the RDF base
infrastructure for scripting languages with practitioners building
applications using these languages. Last years Scripting for the
Semantic Web workshop in Budva, Montenegro focused on giving an
overview about the support for Semantic Web technologies within
scripting languages. The special focus of this year's workshop is the
role of scripting languages in the process of populating the Web with
linked RDF data as well as to showcase innovative scripting
applications that consume RDF data from the Web. The second focus of
the workshop is to show how Web 2.0 applications and mashups can
benefit from Semantic Web technologies.

The workshop will include a scripting challenge (conducted for the 2nd
time) which will award a prize to the most innovative scripting
application.

INVITED TALK
Danny Ayers will give an invited talk at SFSW07 about "Two Webs!"

TOPICS OF INTEREST

Topics of interest include, but are not limited to:

Infrastructure

* Semantic Web frameworks and APIs for scripting languages
* RDF repositories and query languages implemented using scripting language=
s
* Reasoning engines implemented using scripting languages
* Semantic Web publishing and data syndication frameworks
* Approaches to crawling Web data and querying distributed data on the Web

Applications

* Semantic Web applications using scripting languages
* Approaches to RDF-izing existing applications, such as RDFa and GRDDL
* Mashups that provide RDF views on Web 2.0 data sources such as Google,
  Yahoo, Amazon or eBay
* Wikis, weblogs and data syndication systems using RDF
* Approaches (e.g. RDFa, microformats, GRDDL) to RDF-izing existing applica=
tions
* Scripting applications for visualizing Web data.
* Semantic Web Mining and Social Network Analysis
* Mashups that demonstrate the novel capabilities of Semantic Web technolog=
ies

Conceptual

* Rapid development techniques for the Semantic Web
* Employment of scripting language characteristics for Semantic Web develop=
ment
* Scalability and benchmarks of Semantic Web scripting applications

Scripting Challenge

The workshop includes a scripting challenge which will award a prize
(an Apple iPod Video or alternatively Euro 200 cash) to the most
innovative small scripting application or mashup. The application must
be implemented using a scripting language and Semantic Web
technologies. It should access, visualize or combine information from
different sources in new unforeseen ways. Authors of Scripting
Challenge submissions are not required to attend the workshop
personally. More information at:
http://semanticscripting.org/SFSW2007/challenge/


IMPORTANT DATES

Submission deadline: March 30, 2007
Notication of acceptance: April 28, 2007
Camera-ready paper submission: May 7, 2007
Workshop date: June 6, 2007


WORKSHOP CHAIRS

* Chris Bizer, Freie Universit=E4t Berlin, Germany
* S=F6ren Auer, Universit=E4t Leipzig, Germany and University of Pennsylvan=
ia USA
* Gunnar Aastrand Grimnes, DFKI Knowledge Management Lab, Germany
* Tom Heath, Knowledge Media Institute (KMi), United Kingdom


SUBMISSIONS

We seek three kinds of submissions:
* Full papers - should not exceed ten pages in length.
* Short papers - are expected up to 5 pages.
* Scripting Challenge Submissions - 2 page description of the
  application, ideally accompanied with the source code and a link to an
  online demo.

PROGRAM COMMITTEE

* David Aum=FCller, Universit=E4t Leipzig, Germany
* Danny Ayers, Independent Author, Italy
* Dave Beckett, Yahoo!, USA
* Uldis Bojars, DERI, Ireland
* Dan Brickley, Semantic Web Vapourware, UK
* Richard Cyganiak, Freie Universit=E4t Berlin, Germany
* Stefan Decker, DERI, Ireland
* Leigh Dodds, Ingenta, UK
* Edd Dumbill, Useful Information Company, UK
* Frank Fuchs-Kittowski, Frauenhofer Gesellschaft - ISST, Germany
* Daniel Krech, University of Maryland, USA
* Peter Mika, Vrije Universiteit Amsterdam, The Netherlands
* Libby Miller, @Semantics, UK
* Claudia M=FCller, University of Potsdam, Germany
* Benjamin Nowack, appmosphere web applications, Germany
* Alberto Reggiori, @Semantics, Italy
* Sebastian Schaffert, salzburg research, Austria
* Vlad Tanasescu, KMi, The Open University, UK
* Elias Torres, IBM, USA
* Denny Vrandecic, AIFB, Universit=E4t Karlsruhe, Germany
* Gregory Williams, University of Maryland, USA


FURTHER INFORMATION

Updated information about the workshop is found on the workshop
website http://www.semanticscripting.org/SFSW2007/


--=20
Tom Heath
PhD Student
Knowledge Media Institute
The Open University
Walton Hall
Milton Keynes
MK7 6AA
United Kingdom

[Rdfapi-php-interest] Error accessing some methods

[Michel G. <mic...@gm...>]

Hi,

There are several methods i cannot access from the api:

...
$model = ModelFactory::getResModel(MEMMODEL);
$model->load($path);
$modeModel=$model->find($modeInfo,null,null);
$it=$model->findAsIterator($modeInfo,NULL,NULL);

the find() method is ok, but findAsIterator() generates an error: Fatal
error: Call to undefined function: findasiterator() in  ...

Prior to executing this code i do:

define("RDFAPI_INCLUDE_DIR", "/usr/share/php/rdfapi-php/api/");
include_once('/usr/share/php/rdfapi-php/api/RdfAPI.php');

What did i miss ?

/mig

[Rdfapi-php-interest] regex FILTER function in SPARQL and UTF

[Vangelis H. <han...@uc...>]

The regex filter function calls preg_match - but unfortunately 
this does not work for multibyte character sets such as UTF-8. 

Would it be possible to use the mb_ereg* functions if the mbstring
extension is available? Or alternatively, allow for some sort of 
callback mechanism so that the user deals with the whole regex thing.



-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

[Rdfapi-php-interest] OWL api

[Eugenio T. <eug...@un...>]

Hello,
I have to write out an owl file from a PHP application so I need some 
OWL APIs that allow me, for example, to create a new class, to set 
restriction on this class, to create a new property, a new individual 
and so on; I don't need to read the owl file nor to perform reasoning 
on the ontology created, does RAP allow this? It seems to me from the 
documentation that not all the owl features have been implemented.

Thanks.

Regards,

Eugenio.

Re: [Rdfapi-php-interest] Use of RAP - discussion of a possible scenario

[Tom H. <tom...@gm...>]

I'd also be interested in any experiences with performance tuning of
RAP. Perhaps any tips you have S=F6ren could be posted to this list?
(when you have time of course).

Tom.

On 08/02/07, Chris Bizer <ch...@bi...> wrote:
>
>
> Hi Roberto,
>
> I think you should discuss this with S=F6ren Auer. He is using a variatio=
n of
> RAP for his dbpedia demo http://wikipedia.3ba.se/ which is backed by 8
> million triples and has a lot of experience with performance tuning.
>
> Chris
>
> --
> Chris Bizer
> Freie Universit=E4t Berlin
> +49 30 838 54057
> ch...@bi...
> www.bizer.de
>
> ----- Original Message -----
> From: R=E9flectif
> To: rdf...@li...
> Sent: Thursday, February 08, 2007 2:05 AM
> Subject: [Rdfapi-php-interest] Use of RAP - discussion of a possible
> scenario
>
> Hi all,
>
> I would like to discuss with you a possible scenario where I would like t=
o
> use RAP.
>
> The scenario is the following:
>
> - Technology: php/apache/rdf/rap
> - Lot of rdf files;
> - RAP will perform many RDQL queries through these files;
>
> Ok, let's say there are 10000 rdf files. Do I have to include the 10000
> files in the RDQL query?
>
> Is there a way to index all these files and allow RAP/RDQL to go through =
the
> 10000 files in a reasonable time?
>
> Thanks,
>
> Roberto
>
>
>  ________________________________
>
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job
> easier.
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronim=
o
> http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=
=3D121642
>
>  ________________________________
>
>
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
>
>
>
>
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job
> easier.
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronim=
o
> http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=
=3D121642
> _______________________________________________
> Rdfapi-php-interest mailing list
> Rdf...@li...
> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest
>
>

Re: [Rdfapi-php-interest] Use of RAP - discussion of a possible scenario

[Chris B. <ch...@bi...>]

Hi Roberto,

I think you should discuss this with S=F6ren Auer. He is using a =
variation of RAP for his dbpedia demo http://wikipedia.3ba.se/ which is =
backed by 8 million triples and has a lot of experience with performance =
tuning.

Chris

--
Chris Bizer
Freie Universit=E4t Berlin
+49 30 838 54057
ch...@bi...
www.bizer.de
  ----- Original Message -----=20
  From: R=E9flectif=20
  To: rdf...@li...=20
  Sent: Thursday, February 08, 2007 2:05 AM
  Subject: [Rdfapi-php-interest] Use of RAP - discussion of a possible =
scenario


  Hi all,

  I would like to discuss with you a possible scenario where I would =
like to use RAP.

  The scenario is the following:

  - Technology: php/apache/rdf/rap
  - Lot of rdf files;
  - RAP will perform many RDQL queries through these files;=20

  Ok, let's say there are 10000 rdf files. Do I have to include the =
10000 files in the RDQL query?

  Is there a way to index all these files and allow RAP/RDQL to go =
through the 10000 files in a reasonable time?=20

  Thanks,

  Roberto



-------------------------------------------------------------------------=
-----


  =
-------------------------------------------------------------------------=

  Using Tomcat but need to do more? Need to support web services, =
security?
  Get stuff done quickly with pre-integrated technology to make your job =
easier.
  Download IBM WebSphere Application Server v.1.0.1 based on Apache =
Geronimo
  =
http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=3D=
121642


-------------------------------------------------------------------------=
-----


  _______________________________________________
  Rdfapi-php-interest mailing list
  Rdf...@li...
  https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest

[Rdfapi-php-interest] Use of RAP - discussion of a possible scenario

[<ref...@gm...>]

Hi all,

I would like to discuss with you a possible scenario where I would like to
use RAP.

The scenario is the following:

- Technology: php/apache/rdf/rap
- Lot of rdf files;
- RAP will perform many RDQL queries through these files;

Ok, let's say there are 10000 rdf files. Do I have to include the 10000
files in the RDQL query?

Is there a way to index all these files and allow RAP/RDQL to go through the
10000 files in a reasonable time?

Thanks,

Roberto

Re: [Rdfapi-php-interest] Bug 1622372: Call-time pass-by-reference has been deprecated

[Christian W. <cw...@cw...>]

Shu,

> I made changes to my local copy of the code to fix this bug.  It was=20
> basically to remove the call-time pass by references and insure that th=
e=20
> function declarations had the "&" operator by objects.  Has anyone=20
> formally taken it?  I can send the files that were changed.
I already fixed some of the things, but there might be more. Please send
the files to me.

--=20
Regards/Mit freundlichen Gr=FC=DFen
Christian Weiske

[Rdfapi-php-interest] Bug 1622372: Call-time pass-by-reference has been deprecated

[Shu C. <sc...@ma...>]

I made changes to my local copy of the code to fix this bug.  It was 
basically to remove the call-time pass by references and insure that the 
function declarations had the "&" operator by objects.  Has anyone 
formally taken it?  I can send the files that were changed.