Phil Steitz a écrit :
Luc Maisonobe wrote:
Hello,
Since release of 1.2, several people have asked for advices on using the
estimation and optimization packages imported from mantissa. This showed
these packages were poorly designed (you can blame me for that). After
one of the discussions
Luc Maisonobe wrote:
1) let Brent minimization in the analysis.minimization package where it
is now
Why not include this in optimization.general below?
Gilles proposed to put it in analysis a few weeks ago, on the assumption
it is strongly related to roots finding. Of course, it is
Hi,
The existing code is :
- package o.a.c.math.estimation:
Levenberg-Marquardt method for weighted least square minimization
of a vector of residuals
Either one considers the full weighting matrix (including potential
correlation between observations) or one does not account for any
We should note this change of behavior in the changelog. I am OK with
it, but I think we discussed it a while back and decided not to do it
due to concerns that removing the synch could result in hammering the db
engine with concurrent bursts of createConnection requests when load
spikes
Phil Steitz wrote:
We should note this change of behavior in the changelog.
Will do. I'll finish off my work on DBCP-212 first. I don't think there
is anything else we can do for DBCP-212 save add some notes to docs. I
have patches for this I am about to commit.
Mark
Mark Thomas wrote:
Phil Steitz wrote:
We should note this change of behavior in the changelog.
Will do. I'll finish off my work on DBCP-212 first. I don't think there
is anything else we can do for DBCP-212 save add some notes to docs. I
have patches for this I am about to commit.
I think that Dmitri overstates his case a bit.
This multiplication in observation space works for some algorithms, not for
others. Ordinary least squares regression is somewhat of an exception
here. Logistic regression is a simple counter-example.
It is still useful to have a vector weight and
On 22/02/2009, pste...@apache.org pste...@apache.org wrote:
Author: psteitz
Date: Sun Feb 22 23:43:52 2009
New Revision: 746849
URL: http://svn.apache.org/viewvc?rev=746849view=rev
Log:
Added a connectionInitSqls configuration parameter to BasicDataSource
allowing
the user to
sebb wrote:
On 22/02/2009, pste...@apache.org pste...@apache.org wrote:
Author: psteitz
Date: Sun Feb 22 23:43:52 2009
New Revision: 746849
URL: http://svn.apache.org/viewvc?rev=746849view=rev
Log:
Added a connectionInitSqls configuration parameter to BasicDataSource allowing
the user
Looking at the revisions on the bugfixes branch:
742870 - ?? - Lacking Unit Tests, not liking the catch Exception.
RuntimeException throwing needs String arg. Generally not trusting the
Java API here to work beautifully and wanting to have covered a bunch
of use cases.
743293 - +1 - rename
I've been working on getting Commons Configuration to be able to use
VFS as its underlying file system and have everything working.
However, in the course of this effort I ran into a problem. https://issues.apache.org/jira/browse/VFS-164
states that there were problems under load and so
Hi!
-Original Message-
From: Ralph Goers [mailto:ralph.go...@dslextreme.com]
Sent: Monday, February 23, 2009 7:28 AM
What I'd like to know is, was there more to VFS-164 than is stated in
the issue and is this change sufficient? Or do I need to create yet
another
Thanks Mario. VFS-164 wasn't really clear. Was the problem the limit
to 2 connections per host that MultiThreadedHttpConnectionManager has
by default? I changed VFS to have it default to 5 and the unit tests
pass - including ContentTests.testConcurrentRead() which would hang
with only 2
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