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August 30, 2014

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10:14 PM | high-dimensional stochastic simulation and optimisation in image processing [day #3]
Last and maybe most exciting day of the “High-dimensional Stochastic Simulation and Optimisation in Image Processing” in Bristol as it was exclusively about simulation (MCMC) methods. Except my own talk on ABC. And Peter Green’s on consistency of Bayesian inference in non-regular models. The talks today were indeed about using convex optimisation devices to speed up […]
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10:11 PM | More alphabets
This post is the third and last in a series of posts containing revisions of the abstractmath.org article Alphabets. The first two were: The Greek alphabet in math The use of fraktur in math Addition to the listings for the Greek alphabet Sigma: $\Sigma,\,\sigma$ or ς: sĭg'mɘ. The upper case $\Sigma $ is used for […]
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5:52 PM | Narrative Voice vs Narrative Perspective
I’ve been on a bit of a Gérard Genette kick lately. If you don’t know who he is, then you probably haven’t studied much narrative theory. He is mostly known for his work on structuralism, but I’ve never really found … Continue reading →
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1:29 PM | where are they going so fast in those cars?
recall that the primaries R, Y, & B, together with the secondaries P, O, & G, and the ideal M (“mud”) can be put in the “mister big pie, oh” (don’t quit ohio) order (and looped around pacman style endlessly): MRBGPYOMRBGPYOM…; the result, very pleasingly to me, is that the “lines” of the 7-color-fano-plane can […]
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1:15 PM | Come costruire un libro infinito (prima parte)
Da insularomana.wordpress.comSarà di certo capitato anche a voi di immergervi rapiti nelle pagine di un libro, divorarle con avidità e godimento e, una volta giunti alla fine, pensare: “L’unico difetto di questo libro è che è troppo breve”. Oppure: “Avrei desiderato che l’ultima pagina non arrivasse mai”. O semplicemente: “Peccato che sia finito”.Già, perché se un libro viene finito, cioè terminato, vuol dire che è finito, cioè che non è infinito. D’altra parte, […]
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12:30 PM | 8/30/14
8 = 3 + 0 + 1 + 4 Also: 8 (mod 3) = 0 + (1 * √4)
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12:18 PM | avernian landscapes (#6)
Filed under: Mountains, pictures, Running, Statistics, Travel Tagged: Auvergne, Besse-en-Chandesse, Bleu d'Auvergne, Cantal, cow, Fourme d'Amber, France, Laguiole, Mont-Dore, Puy-de-Dôme, Saint-Nectaire, Salers, sunrise, vacations, volcanoes
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6:49 AM | Der Fieldsmedaillenbetrug
Einen veritablen Skandal hat Gowers’s Weblog aufgedeckt: von den vierzehn seit 2000 gekürten Trägern der Fieldsmedaille gehören sieben zur selben Gruppe, nämlich zur Gruppe der Menschen, deren Vor- und Nachname mit demselben Buchstaben beginnt. (Es handelt sich um Laurent Lafforgue, Vladimir Voevodsky, Terence Tao, Wendelin Werner, Stanislav Smirnov, Artur Avila und Maryam Mirzakhani.) Unbestätigten Berichten…

August 29, 2014

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10:14 PM | high-dimensional stochastic simulation and optimisation in image processing [day #2]
After a nice morning run down Leigh Woods and on the muddy banks of the Avon river, I attended a morning session on hyperspectral image non-linear modelling. Topic about which I knew nothing beforehand. Hyperspectral images are 3-D images made of several wavelengths to improve their classification as a mixture of several elements. The non-linearity […]
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9:35 PM | central ohio tour update
mond’y’s USA labor day & campus is closed. so i *won’t* be visiting. stephen “the phlatt rascal”? might be doing the usual monday night variety show or not; you won’t learn it from me. here. now.
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3:01 PM | skynet permitting
i’m planning on a campus trip monday so look for me at bernie’s afterwards. i might even stay for the monday medley. anyhow, *i’ll* plan on banging around a bit out on the smoker’s deck or what- not.
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1:57 PM | Ouroboros predecessor (IV): how the walker eats
Continues from  Ouroboros predecessor (III): the walking machine .  This time you have to imagine that the walker machine sits on a long enough train track. The regularity of the train track is corrupted by a bit of food (appearing as a L node connected to a termination node), see the next (BIG) picture. It […]
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12:30 PM | 8/29/14
82 (mod 9) = 1^4 Also: 8 + 2 - 9 = 1^4 Also: 8 = 2 + √9 - 1 + 4 Also: 8 = 2 + √9 + 1 + √4 Also: 8 - 2 = 9 + 1 - 4
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12:18 PM | avernian landscapes (#5)
Filed under: Mountains, pictures, Running, Statistics, Travel Tagged: Auvergne, France, Mont-Dore, Puy de Sancy, Puy-de-Dôme, vacations, volcanoes
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11:55 AM | [转载]What’s a Gauge?
From: Terence Tao’s blog: What’s a Gauge. " […]
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9:38 AM | Monotonic Sequence
Analysis with Programming has recently been accepted as a contributing blog on Mathblogging.org, a blogosphere aiming to be the best place to discover mathematical writing on the web. And as a first post, being a member of the said site, I will do proving on the theory of probability. This problem by the way, is part of my first homework on my masteral. This is my solution and if you find errors, do let me know.ProblemIf $\{A_k\}$ is either expanding or contracting, we say that it is monotone, […]
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9:25 AM | 用winedt替换网页Latex为Mathjax \ \ \ 0+ $ \…
用winedt替换网页Latex为Mathjax: 1 2 3 \!\[\(0+{$[" \{\}\ […]
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3:42 AM | Shout-out to Sabeti Lab
A shout-out today to my friend and colleague Pardis Sabeti (and her lab) for their Science article on the Ebola virus that appeared earlier today.  Pardis and her group have been studying the genetics of viral diseases, and in particular the Lassa virus.  So they were there and ready when the recent Ebola virus began and went to work.  They sequenced 99 Ebola virus genomes from 78 patients, and have analyzed the resulting information to gain insight into how the disease is […]

August 28, 2014

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11:06 PM | Use the Moment Map, not Noether’s Theorem
For a fourth provocative slogan about quantum mechanics I’ve chosen: Use the moment map, not Noether’s Theorem. Pretty much every physics textbook these days explains the way symmetry principles work as: Start with an action functional, invariant under a Lie … Continue reading →
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10:14 PM | high-dimensional stochastic simulation and optimisation in image processing [day #1]
Even though I flew through Birmingham (and had to endure the fundamental randomness of trains in Britain), I managed to reach the Even though I flew through Birmingham (and had to endure the fundamental randomness of trains in Britain), I managed to reach the “High-dimensional Stochastic Simulation and Optimisation in Image Processing” conference location (in Goldney […]
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5:49 PM | Desafíos Matemáticos en El País Verano 2014 – Desafío 5: “Una carita feliz”
Quinto y último desafío de verano que nos traen la Real Sociedad Matemática Española y El País, del estilo a los que se propusieron celebrando el Centenario de la RSME y en las dos últimas navidades. En esta ocasión lo propone Vicente Muñoz, profesor de la Universidad Complutense de Madrid (UAM) que, por cierto, colaboró […]Entra en Gaussianos si quieres hacer algún comentario sobre este artículo, consultar entradas anteriores o enviarnos un mensaje.Construye […]
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5:23 PM | Special thanks to correction_bot
Hello again. This a quick post to let you know that I worked through your recent comments and updated the Stacks project website with the latest version. So get back there and find more mistakes. Thank you all!
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5:12 PM | Do theoretical computer scientists despise practitioners? (Answer: no, that’s crazy)
A roboticist and Shtetl-Optimized fan named Jon Groff recently emailed me the following suggestion for a blog entry: I think a great idea for an entry would be the way that in fields like particle physics the theoreticians and experimentalists get along quite well but in computer science and robotics in particular there seems to […]
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12:30 PM | 8/28/14
8 * 2 / 8 = 1 * √4 Also: 8 + 2 - 8 = 1 * √4 Also: |(8 / 2) - 8| = 1 * 4 Also: 82 (mod 8) = 1 * √4
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12:18 PM | avernian landscapes (#4)
Filed under: Mountains, pictures, Running, Travel Tagged: Auvergne, Besse-en-Chandesse, countryside, France, Puy de Sancy, Puy-de-Dôme, vacations
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7:42 AM | Caltech InnoWorks 2014, More Than Just a Summer Camp
“More, we need more!” Adding more fuel to “Red October”, I presented the final product to my teammates. With a communal nod of approval, we rushed over to the crowd. “1, 2, 3, GO!” It was the semi-finals. Teams Heil … Continue reading →
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6:53 AM | Hood fellowships
On Monday, we went to a celebration of 10 years of the Hood Foundation, in University House, a lovely building which had been a synagogue and then a bank and was now offices for part of the university administration (with … Continue reading →

August 27, 2014

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11:31 PM | Creating Classroom Rules for Multiple Classes
Every school year I give students an opportunity to help create our classroom expectations/rules.  Many teachers use this same strategy. I feel like having students as part of this process is important and often encourages additional ownership since their input is being valued.  The expectations that are created are referenced through the school year. This year I went […]
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11:11 PM | Tangent lines to the sine function with rational slope
Today I was wondering the following thing (I won’t bore you with how I ended up with this question): Are there any rational values of for which the line is tangent to the graph of Clearly the answer is yes: But my gut feeling was that this was the only such After some head scratching, […]
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10:14 PM | capture-recapture homeless deaths
In the newspaper I grabbed in the corridor to my plane today (flying to Bristol to attend the SuSTaIn image processing workshop on “High-dimensional Stochastic Simulation and Optimisation in Image Processing” where I was kindly invited and most readily accepted the invitation), I found a two-page entry on estimating the number of homeless deaths using […]
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