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Re: Suggestions for implementing a "document matches" program?

From: Richard H. McCullough <rhm@cdepot.net>
Date: Wed, 30 Apr 2003 17:13:30 -0700
Message-ID: <001d01c30f76$dc890270$bd7ba8c0@rhm8200>
To: "Roger L. Costello" <costello@mitre.org>
Cc: <www-rdf-interest@w3.org>

Here's an MKR implementation of a "camera matches" program.
The low-level details of the Unicon procedure match_camera(cam1,cam2)
are straightforward, and left as an exercise.

# KEHOME/knowledge/applications/SemanticWeb/OWL/MatchCamera.mkr
# Apr/30/2003

at view = Camera Ontology;

desired camera isa Camera with
     lens = 75-300mm zoom,
     aperture = 4.5-5.6,
     shutter speed = 1/500 - 1.0 sec;

Hunts isa PhotographyStore;
Hunts has
     store-location = "Malden, MA",
     phone = 617-555-1234,
     catalog = Hunts catalog;
Hunts catalog isall  # Set of Camera
     Olympus-OM-10;
 
Olympus-OM-18 isa SLR with
     lens = Lens_Olympus-OM-18,
     body = Body_Olympus-OM-18;
Lens_Olympus-OM-18 has
     focal-length = 75-300mm zoom,
     f-stop = 4.5-5.6;
Body_Olympus-OM-18 has
     shutter-speed = [ min = 0.002, max = 1.0, units = seconds ];
Olympus-OM-18 has
     cost = 325 USD;

MatchCatalog isa method with
     format = [Camera:1, Catalog:2],
     meaning = {
          every cam ismem $2 {
               if MatchCamera od $1, $cam done;
               then do print od "Yes, $cam MATCHES" done;
               fi;
          };
     };
MatchCamera isa method with
     format = [Camera:1, Camera:2],
     meaning = match_camera,
     meaningtype = procedure;  # Unicon procedure

do MatchCatalog od desired camera, Hunts catalog done;

============ 
Dick McCullough 
knowledge := man do identify od existent done; 
knowledge haspart proposition list; 
----- Original Message ----- 
From: "Roger L. Costello" <costello@mitre.org>
To: <www-rdf-interest@w3.org>
Cc: "Costello,Roger L." <costello@mitre.org>
Sent: Monday, April 21, 2003 5:41 AM
Subject: Re: Suggestions for implementing a "document matches" program?


> > >
> > > "I am interested in purchasing a camera with a 75-300mm zoom lens, 
> > > that has an aperture of 4.5-5.6, and a shutter speed that ranges 
> > > from 1/500 sec. to 1.0 sec."
> > 
> <?xml version="1.0?>
> <PhotographyStore rdf:ID="Hunts"
>                                
> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>     <store-location>Malden, MA</store-location>
>     <phone>617-555-1234</phone>
>     <catalog rdf:parseType="Collection">
>         <SLR rdf:ID="Olympus-OM-10"
>                    xmlns="http://www.camera.org#">
>             <lens>
>                  <Lens>
>                        <focal-length>75-300mm zoom</focal-length>
>                        <f-stop>4.5-5.6</f-stop>
>                  </Lens>
>             </lens>
>             <body>
>                  <Body>
>                       <shutter-speed rdf:parseType="Resource">
>                            <min>0.002</min>
>                            <max>1.0</max>
>                            <units>seconds</units>
>                       </shutter-speed>
>                  </Body>
>             </body>
>             <cost rdf:parseType="Resource">
>                 <rdf:value>325</rdf:value>
>                 <currency>USD</currency>
>             </cost>
>         </SLR>
>     </catalog>
> </PhotographyStore>
Received on Wednesday, 30 April 2003 20:16:12 GMT

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