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I hope you enjoy editing here and being a Wikipedian! By the way, you can sign your name on Talk and vote pages using three tildes, like this: ~~~. Four tildes (~~~~) produces your name and the current date. If you have any questions, see the help pages, add a question to the village pump or ask me on my Talk page. Again, welcome! Oleg Alexandrov 01:56, 21 Apr 2005 (UTC)
There are real problems with your text for the derivation of the Kalman filter, but when I tried to fix them, you reverted all my changes, saying that they were inaccurate. One part I know was inaccurate (and indeed had marked on my printouts to fix before your changes went in): I referred to "estimated state matrix" where what I meant was "estimated state vector", and I didn't make it clear that it was the sum of the squares of the error that was to be minimized.
You reverted all my changes to the original text, so I'm guessing there must have been more serious problems than that. Could you outline them for me? Thanks!
Hello. Standard usage in my experience is that random variables are denoted by capital letters like X, and corresponding lower-case letters used for the dummies in density functions and CDFs and such expressions as
So why did you change the RVs in covariance matrix to lower-case? Michael Hardy 21:56, 20 Apr 2005 (UTC)
If you have a moment free, I'd appreciate your guidance in a discussion I'm having with User:Chrislloyd on Talk:Kalman filter#non-correlation_of_noise_variables about whether uncorrelation of gaussian variables implies independence. One of us is very confused and wrong, and would benefit from the knowledge of one such as yourself. Thanks! — ciphergoth 20:18, 2005 Apr 27 (UTC)
You've got to be kidding. That the difference between covariance and correlation is that in the former you don't subtract the average, is very strange. The standard is that the covariance divided by the product of the two standard deviations is the correlation. Michael Hardy 20:14, 28 Apr 2005 (UTC)
Hi Frederik. I left you a message on Talk:Matrix differentiation. Thanks. Oleg Alexandrov 00:48, 8 May 2005 (UTC)
It's clear that that was just vandalism. In cases such as this you just revert back to the last good version. Not sure why you put the stub notice at the top either, as they go at the bottom of the article. CryptoDerk 17:24, May 9, 2005 (UTC)
Hi Orderud. As I think you saw, I reverted some of your edits. I think the numerical analysis category is not so reduntant in places. Also, when one thinks of the Category:Curves, the first thing which comes to one's mind is that this is geometry, not numerical analysis.
Thus, putting Category:Curves in Category:Numerical analysis, then removing the latter from a bunch of articles which are about numerical analysis, I think was not right.
However, in retrospect, I think it was not right to revert your edits so fast (I guess I am in a hurry right now). After I already did that, another idea came to my mind. Category:Curves should not be in Category:Numerical analysis. Rather, a new Category:Splines needs to be created, which should be in the categories of curves, numerical analysis, and computer graphics. Then, the articles about splines which are now in Category:Curves and Category:Numerical analysis could be put in the new category instead. What do you think?
Again, I am sorry for my rush edits. I should have considered this option before. Oleg Alexandrov 04:20, 10 Jun 2005 (UTC)
We, at the Wikiproject Elements, have noticed your recent edits to the infoboxes of helium and hydrogen. We were wondering your source for the data and if it is reliable. If it is, we would be interesting in expanding it to all emement articles. Please leave us a comment on Wikipedia talk:WikiProject Elements or even my talk page. --metta, The Sunborn 3 July 2005 23:43 (UTC)
Perhaps next time you should consult the oracle... sorry Google. :) AlistairMcMillan 23:21, August 6, 2005 (UTC)
Hi; welcome! I hope it's OK if I (re)add you to the WKPns in Norway cat---I think it's a patently Good Thing™ to have us Norwegians listed in that cat in addition to any 'regional' ones, so as to keep the overall picture. --Wernher 14:25, 21 August 2005 (UTC)
Hello,
Since you contributed in the past to the publications’ lists, I thought that you might be interested in this new project. I’ll be glad if you will continue contributing. Thanks,APH 09:39, 11 September 2005 (UTC)
About your recent edit...
(1) Video for Windows is not just libraries, the actual Media Player application was only distributed as part of Video for Windows. (2) The cat is "Windows software" not "Windows user software". If the cat is only for user software it should say so somewhere. AlistairMcMillan 15:08, 13 September 2005 (UTC)
PANIC: I've posted a message for you in [Wikibooks user talk page], txs...
Please participate in the discussion at Talk:Microsoft Dynamic Link Library#Requested move.
Hello Orderud - since you listed statistics as an interest in your user talk, I was hoping you could lend your expertise to the current Mathematics Collaboration of the Week: Multiple Comparisons. Obviously it's a interesting and important topic. We are also in the midst of a discussion as to the distinction between multiple comparisons and multiple testing. Your thoughts would be much appreciated. Let's get a math article up on the front page! Thanks for any help. Debivort 10:20, 5 January 2006 (UTC)
Yeah, voting closed just yesterday on my RfA, but thanks for the sentiment! -lethe talk + 01:24, 2 February 2006 (UTC)
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Your revert covers only some of Alan1507's edits. this diff covers the changes between before he started editing and the current version. — ciphergoth 22:44, 11 May 2006 (UTC)
Thanks a lot for the reformating of the equations. I've looked in the Latex Help section but I could not find how to realign the text on the right of the brace. I will keep you changes in my files.
Pierre_cb 13:38 GMT 2006-05-16
A question I asked on Talk:Kalman filter but didn't get a very good answer; I hope you don't mind me asking you directly. A Kalman model will use today's observation to estimate today's state. What do you use when you want to use today's observation (in combination with those from the past) to improve your estimate of yesterday's state? There are definitely well-understood techniques that use both past and future information together; I just don't know how to look for them because I don't know what they're called. Thanks! — ciphergoth 10:53, 11 August 2006 (UTC)
Hi,
You have put a "Clean up" sign on my Weather radar article in May 2006, before it was completly finished. Since then, I added lot of stuff and reorganized. Some people have added things too. I would like to know want you think of it now and how to get this sign off. Pierre cb 05:19, 27 August 2006 (UTC)
I have been working to cleanup Automatically_Tuned_Linear_Algebra_Software. I see that you have edited that page in the past. If you would be so good as to check out the latest version and contribute to or comment on the article, it would be most appreciated. Cheers, -- Jake 19:36, 5 October 2006 (UTC)
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Hi Orderud,
Back in 2005 you more or less wrote the section Kalman filter#Deriving the Kalman gain. I have some concerns about a mismatch between the physical units used in that derivation as described here Talk:Kalman filter#Unit mismatch in the Kalman gain derivation section. As the original author of that section I thought you maybe wanted to be informed about this, and I would be interested in hearing your view about me feeling a little uneasy about the derivation. As I understand the present derivation is how Kalman originally did it. Best wishes, --Slaunger (talk) 08:01, 29 June 2010 (UTC)
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The article FinkCommander has been proposed for deletion because of the following concern:
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You have utterly destroyed the "Concurrency guarantees" section by repeatedly replacing accurate information with nonsense. Smart pointer instances are not thread-safe. The atomic operations are exceptions to that rule, not the reason that smart pointers are thread-safe (again, they're not). The previous contributor rightly indicated that only the "reference count" is protected and not the referenced object, which you changed to say that it only protects the "smart pointers", but that was false, and it got worse from then on because of the spurious rationale that was added. I was tempted to revert your reversal by saying that accuracy trumps readability, but I'll let somebody else do that, and in the meantime I'll just remove what's wrong. RFST (talk) 19:36, 21 May 2013 (UTC)
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I've seen the RTM version numbers switch back and forth a few times over the past few months, almost like a slow motion edit war. I haven't been able to Google anything definitive, but I'm wondering whether the confusion is version numbers for Visual C++ vs. Visual Studio? — Preceding unsigned comment added by Michaelmalak (talk • contribs) 22:44, 3 September 2013 (UTC)
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I reverted you here but realized I had misread your sentence and have undone my revert. My apologies. Msnicki (talk) 16:13, 13 November 2014 (UTC)
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Hello Forderud,
I wanted to let you know that I just tagged IncludeOS for deletion, because the article doesn't clearly say why the subject is important enough to be included in an encyclopedia.
If you feel that the article shouldn't be deleted and want more time to work on it, you can contest this deletion, but please don't remove the speedy deletion tag from the top.
You can leave a note on my talk page if you have questions.
Adotchar| reply here 11:16, 2 January 2018 (UTC)
Thanks for creating IncludeOS, Forderud!
Wikipedia editor My name is not dave just reviewed your page, and wrote this note for you:
Could you please include more secondary sources to prove the article's notability? A Google search done by myself means that I am quite optimistic that it is notable.
To reply, leave a comment on My name is not dave's talk page.
Learn more about page curation.
!dave 11:26, 2 January 2018 (UTC)
Hello, Forderud. Voting in the 2018 Arbitration Committee elections is now open until 23.59 on Sunday, 3 December. All users who registered an account before Sunday, 28 October 2018, made at least 150 mainspace edits before Thursday, 1 November 2018 and are not currently blocked are eligible to vote. Users with alternate accounts may only vote once.
The Arbitration Committee is the panel of editors responsible for conducting the Wikipedia arbitration process. It has the authority to impose binding solutions to disputes between editors, primarily for serious conduct disputes the community has been unable to resolve. This includes the authority to impose site bans, topic bans, editing restrictions, and other measures needed to maintain our editing environment. The arbitration policy describes the Committee's roles and responsibilities in greater detail.
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The article Bayesian Filtering Library has been proposed for deletion because of the following concern:
No evidence this software passes WP:NSOFT/GNG. No references, no reviews, etc. (Also not seeing any in my BEFORE through there are some mentions in passing).
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