Re: [OpenCyc-devel] Query for all instances of a predicate

[Paul F. <pf...@cs...>]

On Mon, Aug 4, 2008 at 8:41 PM,  <dm...@us...> wrote:
> Change
> (NEW-CYC-QUERY
>   (LIST #$isa ?X #$SpatialThing) #$PeopleDataMt
>   (LIST :MAX-NUMBER 1))
> to
>
> (NEW-CYC-QUERY
>   (LIST #$isa '?X #$SpatialThing) #$PeopleDataMt
>   (LIST :MAX-NUMBER 1))
> Thats a single QUOTE on ?X

Thank you very much for the code example.
Do you know how can I measure the time it takes to run a query in the
Cyc console?
Thank you, regards,
Paul Fodor

> Here are some other legal forms:
>
> (NEW-CYC-QUERY
>   '(#$isa ?X #$SpatialThing) #$PeopleDataMt
>   (LIST :MAX-NUMBER 1))
>
> (NEW-CYC-QUERY
>   (QUOTE (#$isa ?X #$SpatialThing)) #$PeopleDataMt   ;; identical to the
> above
>   (LIST :MAX-NUMBER 1))
>
> (NEW-CYC-QUERY
>   `(#$isa ?X #$SpatialThing) #$PeopleDataMt     ;;; Backquote reader
>   (LIST :MAX-NUMBER 1))
> Here is probly the most prefered:
>
> (NEW-CYC-QUERY
>   '(#$isa ?X #$SpatialThing) #$PeopleDataMt
>   '(:MAX-NUMBER 1))
> Here is a backquoted "`" way  the backquote means to take the item litteral
> the "," in front of COL mean (EVAL COL) -> #$SpatialThing
>
> (CLET ((COL  #$SpatialThing)(NUM 1))
>  (NEW-CYC-QUERY
>   `(#$isa ?X ,COL)  #$PeopleDataMt
>   `(:MAX-NUMBER ,NUM)))
>
>
>
>
>
>
>
>
> ----- Original Message -----
> From: Paul Fodor
> To: OpenCyc developers
> Sent: Monday, August 04, 2008 4:17 PM
> Subject: [OpenCyc-devel] Query for all instances of a predicate
> Dear Sir,
>
> I am a OpenCyc newbie and I have some questions that I could not figure out
> yet. If anyone has time and can respond to my questions, please let me know.
>
> Question 1: I access OpenCyc from Java and I wonder how can I query for all
> instances of a predicate or class. I want to collect a list of all results.
> For instance, I want to collect all spatial things:   (#$isa ?X
> #$SpatialThing)
>
> or, I want to collect all pairs of people liking other people:
> (#$likesAsFriend ?X ?Y)
>
> For example,
>
> (NEW-CYC-QUERY
>   (LIST #$isa #$BillClinton #$SpatialThing) #$PeopleDataMt
>   (LIST :MAX-NUMBER 1))
>
> works, but
>
> (NEW-CYC-QUERY
>   (LIST #$isa ?X #$SpatialThing) #$PeopleDataMt
>   (LIST :MAX-NUMBER 1))
>
> tells me that ?X is unbound.
>
> Question 2: How do I collect this list in Java?
>
> Thank you,
> Paul.
>
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