Displaying 20 results from an estimated 110000 matches similar to: "Error-correcting output code with multiclass problems"
2009 Feb 24
0
samr-package: problem with large sample size multiclass data
Dear all,
I'm using the samr-package to identify significantly differentially expressed genes in microarray data.
So far, I had no problems, but when I used a large multiclass data set with 327 samples, I obtained the following error/warning message:
Warning message:
Inf
In factorial(length(y)) : value out of range in 'gammafn'
Since y is the label vector and has length 327, the
2007 Sep 13
1
[LLVMdev] Nested multiclass/defm declarations?
Hi list,
I'm toying with the idea of writing a m680x0 backend for LLVM, and the
address modes of this chip are bewildering, to say the least. Here's a
rough list off wikipedia for reference:
* Register direct
o data register, e.g. "D0"
o address register, e.g. "A6"
* Register indirect
o Simple address, e.g. (A0)
o
2009 Feb 10
0
[LLVMdev] Multiclass patterns
On Tue, Feb 10, 2009 at 8:27 AM, Villmow, Micah <Micah.Villmow at amd.com> wrote:
> Bill,
> Sorry if I wasn't clear enough. I wasn't referring to multiclass's that
> define other classes, but with using patterns inside of a multiclass to
> reduce redundant code.
> For example:
> multiclass IntSubtract<SDNode node>
> {
> def _i8 : Pat<(sub
2009 Feb 10
2
[LLVMdev] Multiclass patterns
Bill,
Sorry if I wasn't clear enough. I wasn't referring to multiclass's that
define other classes, but with using patterns inside of a multiclass to
reduce redundant code.
For example:
multiclass IntSubtract<SDNode node>
{
def _i8 : Pat<(sub GPRI8:$src0, GPRI8:$src1),
(ADD_i8 GPRI8:$src0, (NEGATE_i8 GPRI8:$src1))>;
def _i32 : Pat<(sub
2017 Aug 22
3
Extending TableGen's 'foreach' to work with 'multiclass' and 'defm'
On 08/22/2017 03:59 AM, Alex Bradbury via llvm-dev wrote:
> On 21 August 2017 at 13:23, Martin J. O'Riordan via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> But there is a downside.
>>
>> For each of the above I also have variations that are a result of different
>> processor and ISA versions, and because of this I have to use
>> ‘multiclass/defm’
2017 Aug 21
2
Extending TableGen's 'foreach' to work with 'multiclass' and 'defm'
I have been reading the “RFC/bikeshedding: Separation of instruction and pattern definitions in LLVM backends” topic with considerable interest. This is an approach I have been considering for taming our own large instruction set, and it looks like it structures our descriptions better than the conventional approach we have used so far.
However, I have another form of TableGen taming that I
2011 May 30
0
how to interpret coefficients from multiclass svm using libsvm (for multiclass R-SVM)
Hello all,
I'm working with the svm (libsvm) implementation from library(e1071).
Currently I'm trying to extend recursive feature elimination (R-SMV) to
work with multiclass classification.
My problem is that if I run svm for a 3 class problem I get a 2-D vector
back from
model$coefs, can someone explain me what this values are? I understand them
in the 2-class problem
where this is a
2009 Mar 24
3
[LLVMdev] Multiclass inheritance?
In TableGen, can multiclasses inherit from one another? I notice that there's
a lot of redundancy in the X86 .td files that could go away with multiclass
inheritance.
-Dave
2009 Mar 24
0
[LLVMdev] Multiclass inheritance?
On Mar 23, 2009, at 5:14 PM, David Greene wrote:
> In TableGen, can multiclasses inherit from one another? I notice
> that there's
> a lot of redundancy in the X86 .td files that could go away with
> multiclass
> inheritance.
Nope, not currently. That would be a nice feature though!
-Chris
2009 Feb 10
0
[LLVMdev] Multiclass patterns
On Mon, Feb 9, 2009 at 5:17 PM, Villmow, Micah <Micah.Villmow at amd.com> wrote:
> Is there a way to define a multi-class pattern in tablegen?
>
Yes. See "multiclass" and "defm" in, say, X86Instr64bit.td, et al.
-bw
2017 Sep 02
0
problem in testing data with e1071 package (SVM Multiclass)
Hello all,
this is the first time I'm using R and e1071 package and SVM multiclass
(and I'm not a statistician)! I'm very confused, then. The goal is: I
have a sentence with sunny; it will be classified as "yes" sentence; I
have a sentence with cloud, it will be classified as "maybe"; I have a
sentence with rainy il will be classified as "no".
The
2012 Oct 14
1
Is there any R package that contains Rusboost based on Adaboost.m2?
Hi,
I have been searching everywhere for an implementation of those algorithms,
but I have only observed them in Matlab and on the literature.
I noticed a package called 'ada' in CRAN but it is not for multi class. I
would be happy with just Adaboost.m2, Smoteboost over adaboost.m2 or any
other combination that could account for imbalanced multiclass
classification problems.
Thanks!
2012 Nov 14
0
[LLVMdev] TableGen: Requires in multiclass's def as well as defm
Hi,
I'd like to disallow ARM's register-register preload instruction for NaCl
(and keep the register-immediate), and instead of my localmod being to
delete the 'rs' def from multiclass APreLoad I'd like to do the cleaner
thing and have rs require IsNotNaCl. This unfortunately doesn't seem to
work because the subsequent defm have their own Requires.
The way preloads are
2009 Feb 10
2
[LLVMdev] Multiclass patterns
Is there a way to define a multi-class pattern in tablegen?
Thanks,
Micah Villmow
Systems Engineer
Advanced Technology & Performance
Advanced Micro Devices Inc.
S1-609 One AMD Place
Sunnyvale, CA. 94085
P: 408-749-3966
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2007 Feb 11
0
randomSurvivalForest 2.0.0 now available
Dear useRs:
Release 2.0.0 of the randomSurvivalForest package is now available.
---------------------------------------------------------------------------------
CHANGES TO RELEASE 2.0.0
Release 2.0.0 represents a major upgrade in the functionality and stability
of the original 1.0.0 release. Key changes are as follows:
o Two new splitting rules, 'logrankscore' and
2007 Feb 11
0
randomSurvivalForest 2.0.0 now available
Dear useRs:
Release 2.0.0 of the randomSurvivalForest package is now available.
---------------------------------------------------------------------------------
CHANGES TO RELEASE 2.0.0
Release 2.0.0 represents a major upgrade in the functionality and stability
of the original 1.0.0 release. Key changes are as follows:
o Two new splitting rules, 'logrankscore' and
2013 Jan 01
0
bagging algorithm
Dear Sir,
I am a R beginning user. I would like to apply the bagging algorithm to my
data in order to classify a certain disease by Bagging Support Vector
Machine Ensemble.
My problem is that even if I am reading the book, looking at the examples
in internet and available in R, learning a lot of theoretical things on
about SVM esemble or Bagging method, I can't apply Bagged SVM esemble or
2006 Jan 07
1
Clustering and Rand Index
Dear WizaRds,
I am trying to compute the (adjusted) Rand Index in order to comprehend
the variable selection heuristic (VS-KM) according to Brusco/ Cradit
2001 (Psychometrika 66 No.2 p.249-270, 2001).
Unfortunately, I am unable to correctly use
cl_ensemble and cl_agreement (package: clue). Here is what I am trying
to do:
library(clue)
## Let p1..p4 be four partitions of the kind
2006 Feb 24
0
New `party' tools
Dear useRs,
Version 0.8-1 of the `party' package will appear on CRAN and its mirrors
in due course. This version implements two new tools:
o `mob', an object-oriented implementation of a recently suggested
algorithm for model-based recursive partitioning (Zeileis, Hothorn,
Hornik, 2005) has been added. It works out of the box for partitioning
(generalized) linear
2006 Aug 14
0
Random Survival Forest 1.0.0 is now available.
Dear useRs,
Release 1.0.0 of the new R package 'randomSurvivalForest' is now available
on CRAN and its mirrors. The package implements Ishwaran and Kogalur's
Random Survival Forests algorithm for right censored survival data. The
algorithm is closely patterned after Breiman's random forests, but suitably
modified for the survival setting. Some key features are:
o An ensemble