Posts Tagged ‘ mathematics ’

Mathematics activities using Lego bricks

November 27, 2016
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Mathematics activities using Lego bricks

I love Lego. And I love making up mathematics and statistics activities for people of all levels of attainment. So it makes sense that I would make up maths discussion activities using Lego. Whenever I have posted my ideas on … Continue reading →

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Inside Interesting Integrals

November 17, 2016
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Inside Interesting Integrals

In some of my research - notably that relating to statistical distribution theory, and that in Bayesian econometrics - I spend quite a bit of time dealing with integration problems. As I noted in this recent post, integration is something that we reall...

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Talking in class: improving discussion in maths and stats classes

November 3, 2016
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Talking in class: improving discussion in maths and stats classes

Maths is right or wrong – end of discussion  – or is it? In 1984 I was a tutor in Operations Research to second year university students. My own experience of being in tutorials at University had been less than inspiring, … Continue reading →

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Play and learning mathematics and statistics

October 13, 2016
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Play and learning mathematics and statistics

The role of play in learning I have been reading further about teaching mathematics and came across this interesting assertion: Play, understood as something frivolous, opposed to work, off-task behaviour, is not welcomed into most mathematics classrooms. But play is … Continue reading →

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Come to Melbourne, even if not to Monash

October 12, 2016
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Come to Melbourne, even if not to Monash

The University of Melbourne is advertising for a “Professor in Statistics (Data Science)”. Melbourne (the city) is fast becoming a vibrant centre for data science and applied statistics, with more than 4700 people signed up for the Data Science Meetup Group, a thriving start-up scene, the group at Monash Business School (including Di Cook and […]

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MALA – Metropolis Adjusted Langevin Algorithm in Julia

October 3, 2016
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MALA – Metropolis Adjusted Langevin Algorithm in Julia

Metropolis Adjusted Langevin Algorithm (MALA) Haven’t dumped much code here in a while. Here’s a Julia implementation of MALA with an arbitrary preconditioning matrix M. Potentially I might use this in the future. Generic Julia Implementation Arguments are a function to evaluate the logdensity, function to evaluate the gradient, a step size h, a preconditioning […] The post MALA – Metropolis Adjusted Langevin Algorithm in Julia appeared first on Lindons…

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Relative error distributions, without the heavy tail theatrics

September 20, 2016
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Relative error distributions, without the heavy tail theatrics

Nina Zumel prepared an excellent article on the consequences of working with relative error distributed quantities (such as wealth, income, sales, and many more) called “Living in A Lognormal World.” The article emphasizes that if you are dealing with such quantities you are already seeing effects of relative error distributions (so it isn’t an exotic … Continue reading Relative error distributions, without the heavy tail theatrics

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Mathematics teaching Rockstar – Jo Boaler

July 25, 2016
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Mathematics teaching Rockstar – Jo Boaler

Moving around the education sector My life in education has included being a High School maths teacher, then teaching at university for 20 years. I then made resources and gave professional development workshops for secondary school teachers. It was exciting … Continue reading →

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A budget of classifier evaluation measures

July 22, 2016
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A budget of classifier evaluation measures

Beginning analysts and data scientists often ask: “how does one remember and master the seemingly endless number of classifier metrics?” My concrete advice is: Read Nina Zumel’s excellent series on scoring classifiers. Keep notes. Settle on one or two metrics as you move project to project. We prefer “AUC” early in a project (when you … Continue reading A budget of classifier evaluation measures

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Teachers and resource providers – uneasy bedfellows

July 18, 2016
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Teachers and resource providers – uneasy bedfellows

Trade stands and cautious teachers It is interesting to provide a trade stand at a teachers’ conference. Some teachers are keen to find out about new things, and come to see how we can help them. Others studiously avoid eye-contact … Continue reading →

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