W3C home > Mailing lists > Public > semantic-web@w3.org > January 2012

Re: status and problems on sematicweb.org

From: Michael Hausenblas <michael.hausenblas@deri.org>
Date: Fri, 13 Jan 2012 09:04:09 +0000
Cc: Bernard Vatant <bernard.vatant@mondeca.com>, Yury Katkov <katkov.juriy@gmail.com>, Semantic Web <semantic-web@w3.org>
Message-Id: <DEA162BF-7F8E-4F35-BA10-074268B62B82@deri.org>
To: Markus Krötzsch <markus.kroetzsch@cs.ox.ac.uk>

> This is only weakly related to this wiki site discussion but should  
> be easy to solve anyway. Short answers:
>
> * Subdomains of semanticweb.org are managed independently and  
> (mainly) on different servers run by different people. The  
> responsibility is with the people who asked for the subdomain.  
> Stefan Decker is managing the domain registration and should know  
> who is responsible in cases where it is not clear from the web page.


Exactly.


> * Content of earlier versions of semanticweb.org has not been  
> migrated in the last relaunch of the site a few years ago. As long  
> as it is just static HTML content that does not conflict with new  
> content (i.e., if there is nothing else under that URL now), it  
> would be possible to put it back into its place. To do this, please  
> send me an email with the archived HTML content and let me know  
> where to put it. I do not have access to any old versions of the  
> site, so I cannot help in finding the old content.


Maybe we should also have a look at http://semanticweb.org/wiki/Special:PopularPages 
  to figure what is relevant or not (modulo person-pages and long  
tail). Happy to invest some time content-wise ...

Cheers,
	Michael
--
Dr. Michael Hausenblas, Research Fellow
LiDRC - Linked Data Research Centre
DERI - Digital Enterprise Research Institute
NUIG - National University of Ireland, Galway
Ireland, Europe
Tel. +353 91 495730
http://linkeddata.deri.ie/
http://sw-app.org/about.html

On 13 Jan 2012, at 08:57, Markus Krötzsch wrote:

> On 12/01/12 18:39, Bernard Vatant wrote:
>> Hi all
>>
>> A related issue is that under semanticweb.org <http:// 
>> semanticweb.org>
>> domain or subdomains are living several vocabularies (ontologies),  
>> some
>> of them are used in the linked data space, either by published data  
>> sets
>> or other vocabularies relying on them.
>
> This is only weakly related to this wiki site discussion but should  
> be easy to solve anyway. Short answers:
>
> * Subdomains of semanticweb.org are managed independently and  
> (mainly) on different servers run by different people. The  
> responsibility is with the people who asked for the subdomain.  
> Stefan Decker is managing the domain registration and should know  
> who is responsible in cases where it is not clear from the web page.
>
> * Content of earlier versions of semanticweb.org has not been  
> migrated in the last relaunch of the site a few years ago. As long  
> as it is just static HTML content that does not conflict with new  
> content (i.e., if there is nothing else under that URL now), it  
> would be possible to put it back into its place. To do this, please  
> send me an email with the archived HTML content and let me know  
> where to put it. I do not have access to any old versions of the  
> site, so I cannot help in finding the old content.
>
> Cheers,
>
> Markus
>
>>
>> But their status is variable. Examples :
>>
>> http://data.semanticweb.org/ns/swc/ontology is alive and well so far
>> and re-used e.g., by http://online-presence.net/opo/ns
>>
>> http://proton.semanticweb.org/2005/04/protons# is alive and well so  
>> far
>> and re-used e.g., by http://www.bbc.co.uk/ontologies/sport/
>>
>> But
>>
>> http://www.semanticweb.org/ontologies/2009/2/HumanEmotions.owl is  
>> 404,
>> although http://kdo.render-project.eu/kdo declares that it imports it
>> Actually http://semanticweb.org/ontologies/ itself is 404
>>
>> http://knowledgeweb.semanticweb.org/semanticportal/OWL/Documentation_Ontology.owl
>> is 404
>> although http://lsdis.cs.uga.edu/projects/semdis/opus# declares many
>> mappings to it
>>
>> http://data.semanticweb.org/ns/misc is 404
>> although it is used by http://data.semanticweb.org/ns/swc/ontology
>>
>> And that's only what I can quickly discover using the results  
>> provided
>> by the LOV bot which explores the Linked Open Vocabularies space.
>>
>> What is the bottom line of this? Data and vocabularies publishers  
>> take
>> for granted that published vocabularies can be re-used at will and  
>> rely
>> on them. But when a re-used vocabulary goes off-line, not only we  
>> have
>> 404 in the linked data web, but semantics of dependent vocabularies  
>> is
>> affected.
>>
>> semanticweb.org <http://semanticweb.org> is just an example.
>> Unfortunately it's not the only one. It seems that vocabulary  
>> publishers
>> are often not aware of their long-term responsibility. We have in the
>> LOV project even had answers from some people mentioned as vocabulary
>> creators who were not even aware that their vocabulary was actually
>> still used ...
>>
>> But given its singular place in the semantic web space, one could  
>> think
>> that semanticweb.org <http://semanticweb.org> should show off good
>> practices ...
>>
>> Best
>>
>> Bernard
>>
>> 2012/1/12 Markus Krötzsch <markus.kroetzsch@cs.ox.ac.uk
>> <mailto:markus.kroetzsch@cs.ox.ac.uk>>
>>
>>    Hi Yuri,
>>
>>    let us take this to one mailing list semantic-web@w3.org
>>    <mailto:semantic-web@w3.org>, as this is the list that is most
>>    involved (please drop the others when you reply).
>>
>>    As the technical maintainer of the site, I largely agree with your
>>    assessment. In spite of the very high visibility of the site (and
>>    perceived authority), the active editing community is not big.  
>> This
>>    is a problem especially given the significant and continued spam
>>    attacks that the site is under due to its high visibility (I just
>>    recently changed the captcha system and rolled back thousands of
>>    edits, yet it seems they are already breaking through again,  
>> though
>>    in smaller numbers).
>>
>>    I do not want to blame anybody for the state of affairs: most of  
>> us
>>    do not have the time to contribute significant content to such
>>    sites. However, given the extraordinary visibility of the site, we
>>    should all perceive this as a major problem (to the extent that we
>>    attach our work to the label "semantic web" in any way).
>>
>>    So what can be done?
>>
>>    (1) Freeze the wiki. A weaker version of this is: allow users only
>>    to edit after they were manually added to a group of trusted users
>>    (all humans welcome). This would require somebody to manage these
>>    permissions but would allow existing projects/communities to
>>    continue to use the site.
>>
>>    (2) Re-enforce spam protection on the wiki. Maybe this could be
>>    done, but the site is targeted pretty heavily. Standard captchas
>>    like ReCaptcha are thus getting broken (spammers do have an
>>    effective infrastructure for this), but maybe non-standard  
>> captchas
>>    could work better. This is a task for the technical maintainers
>>    (i.e., me and the folks at AIFB Karlsruhe where the site is  
>> hosted).
>>
>>    (3) Clean the wiki. Whether frozen or not, there is a lot of spam
>>    already. Something needs to be done to get rid of it. This  
>> requires
>>    (easy but tedious) manual effort. Some stakeholders need to be  
>> found
>>    to provide basic workforce (e.g., by hiring a student to help with
>>    spam deletion).
>>
>>    (4) Restore the wiki. Update the main pages (about technologies  
>> and
>>    active projects) to reflect a current and/or timeless state that  
>> we
>>    would like new readers to see. This again needs somebody to push  
>> it,
>>    and for writing pages about topics like SPARQL one would need some
>>    expertise. This is a challenge for the community.
>>
>>    I am willing to invest /some/ time here to help with the above,  
>> but
>>    (3) and (4) requires support from more people. On the other hand,
>>    there are probably hardly more than 20 or 30 *essential* content
>>    pages that we are talking about here, plus many pages about  
>> projects
>>    and people that one should ask the stakeholders to review. So one
>>    might be able to make this into a shining entry point to the
>>    semantic web in a week of work ... together with (1) and (2)  
>> above,
>>    the invested work would remain valuable for a long time.
>>
>>    Cheers
>>
>>    Markus
>>
>>
>>
>>
>>    On 12/01/12 10:43, Yury Katkov wrote:
>>
>>        Hi everyone!
>>
>>        What is the current status of the semanticweb.org
>>        <http://semanticweb.org>
>>        <http://semanticweb.org> website? It used to be the main wiki
>>        about the
>>
>>        semantic web, it has a lot of cool and useful information  
>> about
>>        everything. But now it seems abandoned. I mean, there are  
>> about
>>        30 real
>>        writers who update the information about their projects an  
>> write
>>        articles, but they do something like 30% of changes. The other
>>        70% is spam!
>>
>>        Are there guys who support the website?
>>        Who manages the community, are there any plans of creating
>>        projects and
>>        articles about SW? Is there community at all?
>>
>>        In my opinion if this great website suppose to be alive the
>>        first goal
>>        is to find volunteers who'll help administrator to combat  
>> spam (with
>>        bots, extensions and editing policies) and support the new
>>        activities
>>        and projets on the wiki. (I'm ready to be one of them).
>>        If this wiki lived only in the past when it was a big hype  
>> around
>>        Semantic Web topics and now without a big funding nobody wants
>>        to use it
>>        - wouldn't it better to be frozen?
>>
>>        I appreciate and admire people who started up the wiki.  
>> Please,
>>        don't
>>        let it be the rotting memorial to the past of the Semantic  
>> Web.
>>        -----
>>        Sincerely yours,
>>        Yury Katkov, WikiVote llc
>>
>>
>>
>>
>>    --
>>    Dr. Markus Kroetzsch
>>    Department of Computer Science, University of Oxford
>>    Room 306, Parks Road, OX1 3QD Oxford, United Kingdom
>>    +44 (0)1865 283529 <tel:%2B44%20%280%291865%20283529>
>>    http://korrekt.org/
>>
>>
>>
>>
>> --
>> *Bernard Vatant
>> *
>> Vocabularies & Data Engineering
>> Tel : + 33 (0)9 71 48 84 59
>> Skype : bernard.vatant
>> Linked Open Vocabularies <http://labs.mondeca.com/dataset/lov>
>>
>> --------------------------------------------------------
>> *Mondeca * ** **
>> 3 cité Nollez 75018 Paris, France
>> www.mondeca.com <http://www.mondeca.com/>
>> Follow us on Twitter : @mondecanews <http://twitter.com/#%21/mondecanews 
>> >
>>
>
>
> -- 
> Dr. Markus Kroetzsch
> Department of Computer Science, University of Oxford
> Room 306, Parks Road, OX1 3QD Oxford, United Kingdom
> +44 (0)1865 283529               http://korrekt.org/
>
Received on Friday, 13 January 2012 09:05:06 GMT

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