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Re: Representing temporal data in RDF

From: Richard H. McCullough <rhm@cdepot.net>
Date: Tue, 9 Sep 2003 12:39:03 -0700
Message-ID: <005e01c3770a$236cb150$bd7ba8c0@rhm8200>
To: "Bob MacGregor" <macgregor@ISI.EDU>
Cc: <www-rdf-interest@w3.org>
I guess I misunderstood, too.  I thought
you were looking for the right way to do it

MKR is not triple-based,  To keep things
simple, let's just call it quad-based.

You are looking at both the external and the 
internal representation.  MKR's context is

    at space=s, time=t, view=v { ... };

Everything is stored by view.  Space & time are 
recorded, and in effect are subcontexts of view.

Dick McCullough
knowledge := man do identify od existent done;
knowledge haspart proposition list;

  ----- Original Message ----- 
  From: Bob MacGregor 
  To: Richard H. McCullough 
  Cc: www-rdf-interest@w3.org 
  Sent: Tuesday, September 09, 2003 11:32 AM
  Subject: Re: Representing temporal data in RDF


  Hi Richard,

  I see the query, but that doesn't give me any clue as to
  how you might represent things internally.  I guess I 
  misstated my question -- I'm interested in both the query 
  AND how it accesses temporal facts within an
  established RDF-compliant tool.  Is it simple to describe
  what the internal expansion of your query looks like
  (i.e., revealing your secret for overcoming the limitations of a
  triple representation)?

  Cheers, Bob

  At 11:01 AM 9/9/2003 -0700, Richard H. McCullough wrote:

    Here is your query in MKR (http://rhm.cdepot.net/)

    at space = Antwerp, time = April 2003 {
        ? isa freighter with cargo += aluminum pipes:
    };

    Dick McCullough
    knowledge := man do identify od existent done;
    knowledge haspart proposition list;

    ----- Original Message ----- 
    From: "Bob MacGregor" <macgregor@ISI.EDU>
    To: <www-rdf-interest@w3.org>
    Sent: Tuesday, September 09, 2003 10:41 AM
    Subject: Representing temporal data in RDF
    snip 
    > Here is my example query:
    > 
    > "Retrieve freighters that visited Antwerp on
    > April 2003 whose cargo included aluminum pipes"
    > 
    snip
  =====================================
  Robert MacGregor
  Senior Project Leader
  macgregor@isi.edu 
  Phone: 310/448-8423, Fax:  310/822-6592
  Mobile: 310/251-8488

  USC Information Sciences Institute 
  4676 Admiralty Way, Marina del Rey, CA 90292 
  =====================================
Received on Tuesday, 9 September 2003 15:46:39 GMT

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