Fwd: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Jerven Bolleman
Forgot reply all Original Message Subject: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users. Date: Thu, 18 Apr 2013 23:21:46 +0200 From: Jerven Bolleman To: Rob Warren Hi Rob, There is a fundamental problem with HTTP status codes. Lets say

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Rob Warren
On 18-Apr-13, at 8:53 AM, Jerven Bolleman wrote: Many of the current public SPARQL endpoints limit all their users to queries of limited CPU time. But this is not enough to really manage (mis) use of an endpoint. Also the SPARQL api being http based suffers from the problem that we first sen

Re: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Leigh Dodds
Hi, On Fri, Apr 19, 2013 at 8:49 AM, Jerven Bolleman wrote: > Original Message > Subject: Re: Public SPARQL endpoints:managing (mis)-use and communicating > limits to users. > Date: Thu, 18 Apr 2013 23:21:46 +0200 > From: Jerven Bolleman > To: Rob Warren > > Hi Rob, > > There

Call for Participation: W3C Research Object for Scholarly Communication (ROSC) Community Group

2013-04-19 Thread Jun Zhao
*** apologies for cross-posting *** Dear all, We are proud to announce the launch of the W3C Research Object for Scholarly Communication (ROSC) Community Group [1] (#rosc). The primary goal of the Community Group is to provide a platform for scholars, librarians, publishers, archivists and p

Re: Call for Participation: W3C Research Object for Scholarly Communication (ROSC) Community Group

2013-04-19 Thread Jun Zhao
And sorry, forgot the two links. Here you are; [1] http://www.w3.org/community/rosc/ [2] http://www.w3.org/community/rosc/rosc-community-group-charter/ Cheers, Jun On 19/04/13 10:16, Jun Zhao wrote: *** apologies for cross-posting *** Dear all, We are proud to announce the launch of the W3

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Kingsley Idehen
On 4/18/13 4:53 PM, Rob Warren wrote: On 18-Apr-13, at 8:53 AM, Jerven Bolleman wrote: Many of the current public SPARQL endpoints limit all their users to queries of limited CPU time. But this is not enough to really manage (mis) use of an endpoint. Also the SPARQL api being http based suffe

Re: Fwd: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Kingsley Idehen
On 4/19/13 3:49 AM, Jerven Bolleman wrote: Forgot reply all Original Message Subject: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users. Date: Thu, 18 Apr 2013 23:21:46 +0200 From: Jerven Bolleman To: Rob Warren Hi Rob, There is a fundament

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Kingsley Idehen
On 4/19/13 4:20 AM, Leigh Dodds wrote: Hi, On Fri, Apr 19, 2013 at 8:49 AM, Jerven Bolleman wrote: Original Message Subject: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users. Date: Thu, 18 Apr 2013 23:21:46 +0200 From: Jerven Bolleman To: Rob

Re: Fwd: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Leigh Dodds
Hi, On Fri, Apr 19, 2013 at 11:55 AM, Kingsley Idehen wrote: > ... > If you have OFFSET and LIMIT in use, you can reflect the new state of > affairs when the next GET is performed i.e, lets say you have OFFSET 20 and > LIMIT 20, the URL with OFFSET 40 is the request for the next batch of > result

Re: Fwd: Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Kingsley Idehen
On 4/19/13 7:04 AM, Leigh Dodds wrote: Hi, On Fri, Apr 19, 2013 at 11:55 AM, Kingsley Idehen wrote: ... If you have OFFSET and LIMIT in use, you can reflect the new state of affairs when the next GET is performed i.e, lets say you have OFFSET 20 and LIMIT 20, the URL with OFFSET 40 is the requ

Re: SPARQL, philosophy n'stuff..

2013-04-19 Thread Mark Baker
Kingsley, On Thu, Apr 18, 2013 at 11:21 AM, Kingsley Idehen wrote: > The global Web is a functional Data Space equipped with a declarative query > language based on the Web's architectural essence (URIs and HTTP). It can > work, and will work. The challenge is getting folks to hone in to what > p

CfP: OpenMath workshop at CICM (10 July, Bath, UK), submission deadline 7 June

2013-04-19 Thread Christoph LANGE
25th OpenMath Workshop Bath, UK 10 July 2013 co-located with CICM 2013 Submission deadline 7 June http://www.cicm-conference.org/2013/cicm.php?event=openmath OBJECTIVES OpenMath (http://www.openmath.org) is a language for exchanging mathematical formulae across applications (such as computer alg

Re: SPARQL, philosophy n'stuff..

2013-04-19 Thread David Wood
On Apr 19, 2013, at 07:44, Mark Baker wrote: > Kingsley, > > On Thu, Apr 18, 2013 at 11:21 AM, Kingsley Idehen > wrote: >> The global Web is a functional Data Space equipped with a declarative query >> language based on the Web's architectural essence (URIs and HTTP). It can >> work, and will

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Rob Warren
Hi Rob, There is a fundamental problem with HTTP status codes. Lets say a user submits a complex but small sparql request. My server sees the syntax is good and starts to reply in good faith. This means the server starts the http response and sends an 200 OK Some results are being send Howev

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Samuel Rose
On Thu, Apr 18, 2013 at 9:23 AM, Andrea Splendiani wrote: > Hi, > > I think that some caching with a minimum of query rewriting would get read of > 90% of the select{?s ?p ?o} where {?s?p ?o} queries. > > From a user perspective, I would rather have a clear result code upfront > telling me: your

Re: SPARQL, philosophy n'stuff..

2013-04-19 Thread Kingsley Idehen
On 4/19/13 7:44 AM, Mark Baker wrote: Kingsley, On Thu, Apr 18, 2013 at 11:21 AM, Kingsley Idehen wrote: The global Web is a functional Data Space equipped with a declarative query language based on the Web's architectural essence (URIs and HTTP). It can work, and will work. The challenge is g

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Kingsley Idehen
On 4/19/13 9:25 AM, Rob Warren wrote: Hi Rob, There is a fundamental problem with HTTP status codes. Lets say a user submits a complex but small sparql request. My server sees the syntax is good and starts to reply in good faith. This means the server starts the http response and sends an 200 O

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Rob Warren
On 19-Apr-13, at 8:04 AM, Leigh Dodds wrote: Hi, On Fri, Apr 19, 2013 at 11:55 AM, Kingsley Idehen wrote: ... If you have OFFSET and LIMIT in use, you can reflect the new state of affairs when the next GET is performed i.e, lets say you have OFFSET 20 and LIMIT 20, the URL with OFFSET 40 is

Final CfP: International Semantic Web Conference (ISWC'2013)

2013-04-19 Thread Marta Sabou
FINAL CALL FOR MAIN CONFERENCE PAPERS - The 12th International Semantic Web Conference and the 1st Australasian Semantic Web Conference 21-25 October 2013, Sydney, Australia http://www.iswc2013.semanticweb.org/ Deadlines approaching: May 1 for research track and

Re: Public SPARQL endpoints:managing (mis)-use and communicating limits to users.

2013-04-19 Thread Mark Baker
On Fri, Apr 19, 2013 at 9:25 AM, Rob Warren wrote: >> Hi Rob, >> >> There is a fundamental problem with HTTP status codes. >> Lets say a user submits a complex but small sparql request. >> >> My server sees the syntax is good and starts to reply in good faith. >> This means the server starts the h