Displaying 20 results from an estimated 80 matches similar to: "Using RDF/OWL with R?"
2010 Jun 10
1
OWL ontologies in R?
Are there any R packages to import and use Web Ontology Language (OWL)
ontologies (represented in OWL/RDF or other form)?
Thanks,
-s
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2003 Aug 09
0
Timing attacks and owl-always-auth
Hi All.
Attached is a patch against OpenBSD, based in part on the owl-always-auth
patch.
The idea is that the only way out of auth_passwd for the failure case is
the "return 0" at the bottom.
I don't know if this is a good way to do it or not, it's presented for
discussion.
Also, I don't think 3.6.1p2 is quite right WRT these timing issues (eg,
you get a fast failure
2006 Aug 17
0
RDF - Carmen?
I didn''t want to hijack Martin''s thread, but Carmen said a couple of
interesting [original thread below].
Carmen - since you''ve switched off of SQL what do you use as you data-
store? Have integrated AR?
I''ve been seeing the world in 3+NF for more than 15 years now. Would
you mind speaking to this topic a little, and if you''ve any rails
2006 May 30
0
replacing AR with RDF triple-store
most of my sites so far revolve around user customizable meta-cms
things, which incorporate user-submitted content, auto-aggregated
things, and a diverse set of ''nodes'' with varying components and
attributes. using polymorphic and :through along with som custom model
code i was able to do what i want (but Josh Susser''s ThroughExtender
thing just mentioned on his
2009 Apr 16
1
Redland rdf libraries
I may have a requirement for these libraries on my CentOS-5.3 box.
Does anyone know of a recent rpm for centos that provides them?
--
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Harte & Lyne Limited http://www.harte-lyne.ca
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Hamilton, Ontario
2005 Oct 25
2
Content-Type: application/rdf+xml
Hi,
I am trying to parse the response received from a rdf file using DOM.
However, I am not able to get anything in the responseXML. It always returns null.
Following is the content type I receive from the server.
Content-Type: application/rdf+xml
Can someone let me know how I can receive this as an xmlObj?
Thanks in advance,
Mandy.
_______________________________________________
2006 Oct 01
2
Metadata & RDF
On 30/09/06, Ralph Giles <giles@xiph.org> wrote:
> On Sat, Sep 30, 2006 at 12:21:53PM +0200, Danny Ayers wrote:
>
> > Basically I'd like to embed arbitrary (meta)data in flac files.
>
> I agree it would be best to define a new block type for RDF
> metadata, or probably better for random attached XML data,
That sounds reasonable, but...
and
> let the xml parser
2006 Sep 30
2
Metadata & RDF
I'm very pleased to come across flac, good work folks!
I would like advice and/or have a spec feature request. Please bear in
mind that I am totally new to the format, apologies if what I describe
has been discussed before.
Basically I'd like to embed arbitrary (meta)data in flac files. For
example, it may be about the audio, but then again it may be about the
creator of the audio, or
2006 Feb 01
3
Parsing RDF coming from a URL
Hello,
i''m writing an application that needs geocoding information for locations
outside of the US.
I''m using the brainoff.com geocoding service
mappoint = Net::HTTP.new(''brainoff.com'', 80)
response = mappoint.get(''/geocoder/rest/?city=Gent,BE'')
logger.debug response.body
and the body of the response is in the following form :
<rdf:RDF
2004 Dec 15
4
AR db adapter for a RDF database (ATT: DHH)
Hi people,
As I stated in a earlier message, I am using Rails on my masters degree
and soon I will have to port my application from a relational database
(MySql) to a RDF semantic database called Sesame.
At first, I thought that I could get away with most of the porting only
by writing a decent database adapter, but then, examining AR closer, I
could see that it has some strong dependencies
2012 Jun 12
1
handle large matrix in R
Dear all,
I've run into a question of handling large matrices in R. I'd like to
define a 70000*70000 matrix in R on Platform:
x86_64-apple-darwin9.8.0/x86_64 (64-bit), but it seems to run out of memory
to handle this. Is it due to R memory limiting size or RAM of my laptop? If
I use a cluster with larger RAM, will that be able to handle this large
matrix in R? Thanks much!
Best,
Hui
2012 Jun 01
1
scaling of parameter errors in a weighted regression using nls
I noticed that nls treats weights as relative and that the absolute size of the weights w in
the following script has therefore no influence on the errors of the parameters reported in the summary
a<-1
b<-3
x<--100:100
y<-a*x+b
yeps<-y+rnorm(length(x),sd=1)
w<-rep(1,length(x))
plot(x,yeps)
lines(x,y)
fit<-nls(yeps~p1*x+p2,start=list(p1=a*1.5,p2=b*1.5),weights=w)
2012 Jun 12
4
How to subset a matrix?
Hi all,
Lets say I have a matrix A which is m x n.
I also have a mask matrix MASK which is m x n with values in T/F, where T
values make a sub-matrix in regutangular shape...
I applied B=A[MASK] and it didn't work as expected...
Any thoughts?
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2012 May 31
1
Repost: Expressions returned by GlobalEnv functions and package functions
Hello,
(Sorry for the repost, i am resending in plain text)
I have a function 'ewrap' (see below for definition).
It takes 3 expressions and returns another expression e.g.
map <- ewrap({
len <- length(r$addon)
rhcollect(len,1)
})
becomes:
expression({
NULL
result <- mapply(function(.index, k, r) {
{
len <- length(r$addon)
2012 Jun 15
3
spelling correction using R
hello
I want a code which can correct the spelling mistakes as well as
grammatical mistakes in the sentences...that is if I am writing following
sentence:
I want too meet my frnd bt due to hectic shcedule I cant
I want output in following way:
I want to met my friend but due to hectic schedule I can't.
Thanks in advance
Shilpa Rai
MSc
IIT Bomaby
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2012 Jun 12
3
R-SCRIPT Label Calling Method
Hi,
here i have some code...
a <-1
b <- b+1
c <- b+a/20
if c >5
{ d<- 1 }
else { d<- 0 }
i want to repeat this code from the 2nd line [b <- b+1] without using loop.
Actulay i want to use "*Label *" and call *GoTo* method like in other
coding Languages.
For eg:- like this,
a <-1
*LabelBegin :*
b <-
2016 Oct 18
2
A use of RDF to extend register Remat
Dear Community,
I would like to discuss few points to use RDF to extend register remat
scope. Mr. Krzysztof and I have started discussion this on private mail.
But I think now it would be better to include community.
Interested community member kindly previous discussion (at the end of mail)
before starting here.
After analyzing if RDF can be used for solving Remat, we think that problem
with
2012 May 31
3
Quadrat counting with spatstat
I have photographs of plots that look like so:
http://r.789695.n4.nabble.com/file/n4631960/Untitled.jpg
I need to divide it up so each circle has an equal area surrounding it. So
into 20 equal segments, each of which contains a circle. Quadratcount is not
sufficient because if I divide it up into 36 equal quadrats, some quadrats
do not contain one of the circles.
I'm not even sure how to
2012 Jun 28
4
Printing a variable in a loop
Dear R Users:
I'm a STATA user converting to R, and I'd like to be to do the following.
#Assign var_1 and var_2 a value
10->var1
20->var2
#Now I'd like to print the values of var_1 and var_2 by looping through
var_1 and var_2 in such a manner:
while(y<3){
print(var_y)
y+1->y
}
In STATA, the "y" appended to " var_" is called the local variable and
2000 Aug 02
4
RDF Metadata Specification
I've put together the first attempt to defining an RDF metadata
vocabulary for use with the CD Index/MusicBrainz/OggVorbis. If you care
about metadata issues, please take a look at:
http://www.cdindex.org/MM
I've included a section for video specific stuff, but everything that I
originally had in there is being covered by the MM:Contributors section.
The Contributors stuff will allow