Posts

January 08, 2015

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11:15 PM | ABC with emulators
A paper on the comparison of emulation methods for Approximate Bayesian Computation was recently arXived by Jabot et al. The idea is to bypass costly simulations of pseudo-data by running cheaper simulation from a pseudo-model or emulator constructed via a preliminary run of the original and costly model. To borrow from the paper introduction, ABC-Emulation […]
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10:24 PM | Abstract Maths
These days someone shared an interesting article with me on Facebook (When Even Mathematicians Don’t Understand the Math) and I was impressed and it made me consider a lot of things. It is an article from 2004, but still I consider it to be even more true now than then. I have a question for […]
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5:42 PM | Colours and Dimensions
You've probably learned early on that there are three primary colours. But why three? And why these three? Surprisingly, the answer lies in the beautiful mathematics of linear algebra and (high) dimension spaces!
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3:37 PM | The Simon Marius Anniversary Celebrations 2014 have been a great success
On the 8 January 1610 the Ansbach court astronomer Simon Marius first observed the four largest moons of Jupiter just one day later than Galileo Galilei, although he would delay four years before publishing the results of his observations unlike … Continue reading →
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2:14 PM | “Life Paths and Accomplishments of Mathematically Precocious Males and Females Four Decades Later”
Hmmmm . . . I think that, by “males and females,” they mean “boys and girls.” Anyway, I was interested in this paper (by David Lubinski, Camilla Benbow, and Harrison Kell) because . . . I’m one of the kids in the study. I was 11 years old at the time. What’s happened since then? […] The post “Life Paths and Accomplishments of Mathematically Precocious Males and Females Four Decades Later” appeared first on Statistical Modeling, Causal […]
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10:32 AM | In memoriam: Ivor Grattan-Guinness
The great historian of logic and mathematics Ivor Grattan-Guinness passed away about a month ago, aged 73. I only heard it yesterday, when Stephen Read posted a link to the Guardian obituary on Facebook. From the obituary:He rescued the moribund journal Annals of Science, founded the journal History and Philosophy of Logic, and was on the board of Historia Mathematica from its inception. A member of the council of the Society for Psychical Research, he wrote Psychical Research: A Guide to […]

January 07, 2015

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11:15 PM | a day of mourning
“Religion, a mediaeval form of unreason, when combined with modern weaponry becomes a real threat to our freedoms. This religious totalitarianism has caused a deadly mutation in the heart of Islam and we see the tragic consequences in Paris today. I stand with Charlie Hebdo, as we all must, to defend the art of satire, […]
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6:24 PM | What to do in 2015: Your statistics diary
For the last two weeks of our class on statistical communication, I gave my students the following assignment: Every day, you will write an entry in your statistics diary. Just set up a text or Word file and add to it each day. The diary entries can be anything. They can be short slice-of-life observations […] The post What to do in 2015: Your statistics diary appeared first on Statistical Modeling, Causal Inference, and Social Science.
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5:28 PM | Stone cold sober as a matter of fact
The blog is back. We had some problems, I have no idea why. But it looks ok now. We’ll reschedule some posts that appeared briefly during the rebuilding process. The post Stone cold sober as a matter of fact appeared first on Statistical Modeling, Causal Inference, and Social Science.
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4:15 PM | ils ont tué Cabu, Charb, Wolinski, et les autres de Charlie!!!
Filed under: Books Tagged: Charlie Hebdo, Je suis Charlie
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3:48 PM | If you’re going to blog about history of science then at least do the legwork.
In 2012 I found it necessary on two occasions to pour scorn onto the attempts of Esther Inglis-Arkell to blog about the history of science on the io9 website. In the end I gave up having come to the conclusion, … Continue reading →
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2:39 PM | Je suis Charlie Hebdo
News e aggiornamenti su LSB - immagine di @freshmiss22
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12:23 PM | Going to San Antonio for JMM
Hey, so this is cool. The Alternative Banking group just came out with a second Huffington Post essay, this time on how the bailout isn’t over, how it didn’t work, and how we’re already preparing for the next one. I think it came out really well. You can read it here. Also, I’ll be giving […]
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10:45 AM | Probability resources
Each Wednesday I post a list of notes on some topic. This week it’s probability. Diagram of probability distribution relationships Central limit theorems Counting selections with replacement Distributions in R, Mathematica, Excel, SciPy Cauchy distribution parameter estimation Adult heights and mixture distributions See also posts tagged probability and statistics and the Twitter account ProbFact. Last […]
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7:56 AM | Report from SODA, ALENEX, and ANALCO
I just returned from San Diego, where ALENEX, ANALCO, and SODA were held this year. I'm only going to write about a fraction of the things that happened at these conferences, in part because (with four different sessions happening in parallel much of the time) it was only possible for one person to see a fraction of those things. Also I already posted bits about the ALENEX/ANALCO business meeting and SODA business meeting so I won't repeat those here.Sunday's scheduled plenary talk by Peter […]
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4:45 AM | Cataloging a year of blogging: cancer and biology
Welcome to 111101111. Another year has come to an end, and it is time to embrace tradition and reflect on the past twelve months. In fact, I will try to do one better and start a new tradition: cataloging a year of blogging. Last year, I split up the 83 content heavy posts of 2013 […]

Kaznatcheev, A., Scott, J.G. & Basanta, D. (2014). Edge effects in game theoretic dynamics of spatially structured tumours., arXiv, arXiv: http://arxiv.org/abs/1307.6914v2

Citation
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4:23 AM | I looked at him good
From a US Senate investigation, Reports of the Committee on the Conduct of the War, concerning the Fort Pillow Massacre, which I had never heard of until today. Question. Did you see any buildings burned? Answer. I staid in the woods all day Wednesday. I was there Thursday and looked at the buildings. I saw a […]
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2:13 AM | Blog problems
Hi, the blog got screwed up. We’re busy fixing it. But, in the meantime, please don’t comment, as I can’t be sure the new comments will be saved. The post Blog problems appeared first on Statistical Modeling, Causal Inference, and Social Science.

January 06, 2015

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11:15 PM | how many modes in a normal mixture?
An interesting question I spotted on Cross Validated today: How to tell if a mixture of Gaussians will be multimodal? Indeed, there is no known analytical condition on the parameters of a fully specified k-component mixture for the modes to number k or less than k… Googling around, I immediately came upon this webpage by […]
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10:43 PM | Donuts make it BETTER
I think a couple of weeks ago I found this photo just surfing the internet: “I thought it is an incredibly fun explanation for why square donuts feet better in the box, and also we get extra product, too. The thing with the explanation in the photo is that it is perfect for the 2D […]
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10:00 PM | Final CfP: Formal Epistemology Workshop 2015 (Deadline January 16!)
May 20-22, 2015 (Wednesday to Friday)Washington University in St. LouisKeynote speakers:Tom Kelly (Princeton), Jeff Horty (University of Maryland, College Park)The Formal Epistemology Workshop will be held in connection with the 2015 meeting of the St. Louis Annual Conference on Reasons and Rationality (SLACRR), which will take place immediately before, from May 17-19, 2015.There will be conference sessions all day on May 20 & 21, and in the morning on May 22.Contributors are invited to […]
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2:08 PM | Artist needed!
We have some great ideas but none of us can draw. We need your help with designs and art for any or all of these projects: 1. “Gone Fishing” T-shirt A person is standing in a boat, fishing. The lake is full, not of fish but of little numbers: “.14″, “.31″, “.08″, etc etc. And […] The post Artist needed! appeared first on Statistical Modeling, Causal Inference, and Social Science.
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11:54 AM | Creepy big data health models
There’s an excellent Wall Street Journal article by Joseph Walker, entitled Can a Smartphone Tell if You’re Depressed?, that describes a lot of creepy new big data projects going on now in healthcare, in partnership with hospitals and insurance companies. Some of the models come in the form of apps, created and managed by private, third-party companies that try […]

January 05, 2015

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11:14 PM | ABC by population annealing
The paper “Bayesian Parameter Inference and Model Selection by Population Annealing in System Biology” by Yohei Murakami got published in PLoS One last August but I only became aware of it when ResearchGate pointed it out to me [by mentioning one of our ABC papers was quoted there]. “We are recommended to try a number […]
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10:55 PM | C++ Merge Sort Algorithm
C++ Merge Sort Algorithm stdout Unsorted: -2 14 7 -15 -9 -17 -8 -1 13 1 -10 -7 16 -19 6 2 -12 -11 8 -18 -14 10 5 4 17 12 15 -16 -5 18 -4 -3 -6 -20 0 3 9 -13 11 19 Sorted: -20 -19 -18 -17 -16 -15 -14 -13 […] The post C++ Merge Sort Algorithm appeared first on Lindons Log.
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9:48 PM | Bertrand Russell (1872-1970)
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7:36 PM | Mathematics and Magic: the de Bruijn Card Trick
Perform a magic trick using the power of maths.
Editor's Pick
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4:01 PM | There’s something about humans
An interesting point came up recently. In the abstract to my psychology talk, I’d raised the question: If we can’t trust p-values, does experimental science involving human variation just have to start over? In the comments, Rahul wrote: Isn’t the qualifier about human variation redundant? If we cannot trust p-values we cannot trust p-values. My […] The post There’s something about humans appeared first on Statistical Modeling, Causal Inference, and Social Science.
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2:00 PM | On deck this week
Mon: There’s something about humans Tues: Artist needed! Wed: Bayesian models, causal inference, and time-varying exposures Thurs: When a study fails to replicate: let’s be fair and open-minded Fri: “In general I think these literatures have too much focus on data analysis and not enough on data collection.” Sat: A completely reasonable-sounding statement with which […] The post On deck this week appeared first on Statistical Modeling, Causal Inference, and Social […]
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1:18 PM | my X-validated hats
Filed under: Kids, Statistics, University life
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