Ward [mailto:evan.w...@nrl.navy.mil]
Sent: Thursday, September 04, 2014 7:52 PM
To: dev@commons.apache.org
Subject: Re: [math] Side effect of LevenbergMarquardtOptimizer
Hi Olexiy,
In my field we often encounter a similar problem when estimating attitude since
a quaternion is only a valid rotation
AM
To: dev@commons.apache.org
Subject: Re: [math] Side effect of LevenbergMarquardtOptimizer
On Thu, 4 Sep 2014 12:52:24 -0400, Evan Ward wrote:
Hi Olexiy,
In my field we often encounter a similar problem when estimating
attitude since a quaternion is only a valid rotation when
Message-
From: Gilles [mailto:gil...@harfang.homelinux.org]
Sent: Monday, September 08, 2014 3:11 AM
To: dev@commons.apache.org
Subject: Re: [math] Side effect of LevenbergMarquardtOptimizer
On Thu, 4 Sep 2014 12:52:24 -0400, Evan Ward wrote:
Hi Olexiy,
In my field we often encounter a similar
: Thursday, September 04, 2014 7:52 PM
To: dev@commons.apache.org
Subject: Re: [math] Side effect of LevenbergMarquardtOptimizer
Hi Olexiy,
In my field we often encounter a similar problem when estimating attitude
since a quaternion is only a valid rotation when it is normalized. We often
escape
Gilles,
I like this approach. My only thought is that a separate interface for
the validate method would be nicer for our Java 8 users. Then the
implementation could be a lambda: (p) - p.unitVector()
Best Regards,
Evan
On 09/07/2014 08:11 PM, Gilles wrote:
On Thu, 4 Sep 2014 12:52:24 -0400,
Hello.
On Mon, 8 Sep 2014 08:56:36 -0400, Evan Ward wrote:
Gilles,
I like this approach. My only thought is that a separate interface
for
the validate method would be nicer for our Java 8 users. Then the
implementation could be a lambda: (p) - p.unitVector()
Do you mean define an
I was suggesting (though not clearly :) keeping the
MultivariateJacobianFunction interface as is and adding a new interface
for any post processing of the evaluated point. Something like:
interface StepFinalizer {
RealVector apply(RealVector point);
}
Then we would add another getter/setter
On Mon, 8 Sep 2014 11:50:43 -0400, Evan Ward wrote:
I was suggesting (though not clearly :) keeping the
MultivariateJacobianFunction interface as is and adding a new
interface
for any post processing of the evaluated point.
Isn't it rather pre-processing (the point is changed before
On 09/08/2014 12:06 PM, Gilles wrote:
On Mon, 8 Sep 2014 11:50:43 -0400, Evan Ward wrote:
I was suggesting (though not clearly :) keeping the
MultivariateJacobianFunction interface as is and adding a new interface
for any post processing of the evaluated point.
Isn't it rather
On Thu, 4 Sep 2014 12:52:24 -0400, Evan Ward wrote:
Hi Olexiy,
In my field we often encounter a similar problem when estimating
attitude since a quaternion is only a valid rotation when it is
normalized. We often escape this issue by estimating a small
adjustment to an apriori guess. (For the
Hi Olexiy,
In my field we often encounter a similar problem when estimating
attitude since a quaternion is only a valid rotation when it is
normalized. We often escape this issue by estimating a small
adjustment to an apriori guess. (For the details see [1].) For this
technique to work the cost
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