Author: shotlefttodatascience
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Data mapping challenge
For the past month or so I’ve been working away at something that in hindsight looks deceptively simple – but nonetheless taught me loads of new techniques along the way: I wanted to plot data on a map in such a way that it would reflect ratings by province, taking into account the number of…
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Multivariate regression
So: with linear regression (aka simple linear regression) we have one feature which we are using to predict a dependent value (for example number of rooms as a predictor of house price). With multivariate regression (aka multiple linear regression) we simply have multiple features which could be used to predict that dependent value (for example…
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Polynomial regression
Polynomial regression is a considered a special case of linear regression where higher order powers (x2, x3, etc.) of an independent variable are included. It’s appropriate where your data may best be fitted to some sort of curve rather than a simple straight line. The polynomial module of numpy is easily used to explore fitting the best…
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Co-variance, Correlation & Linear Regression
Typically we have 2 sets of values and we want to find out if these 2 sets of values are related, and if so how, and by how much? Could height be indicative of weight? Could hours of practice be related to how many errors are made in a mathematical test paper? Co-variance is a…
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Perspectives after a no-screens break
Having just returned from one of those “no screens” holidays, I’m feeling super-balanced about life again (and also a little afraid that I may have forgotten everything I’ve been learning)! Being in the Addo Elephant Park reminded me keenly of my original inspirations for starting this journey – if I could do some good in…
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Thoughts on strengthening machine learning in Africa
Yesterday’s Deep Learning Indaba X in Cape Town was so stimulating – there is such a diversity of activity going on in this field in South Africa – wow! The final debate on what we can do to strengthen machine learning in Africa really got me thinking about the role of EDUCATION and I have…
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Linear algebra – check!
It’s been a quiet few weeks on this blog as I spent nearly every spare moment wrestling with the challenges of linear algebra – and I’m in a celebratory mood this afternoon having passed everything within time! I must say that, having some tentative foundational skills, I’m left with 2 main feelings: A tremendous sense of…
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Deep Learning IndabaX Western Cape
Super-chuffed to be going to Deep Learning IndabaX Western Cape 6 April – can’t wait 🙂
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A gem of a book :)
I’ve just bought this delightfully titled book: No bullshit guide to linear algebra by Ivan Savov. It’s not necessarily easy learning everything you need to know about linear algebra for machine learning in 5 weeks (is that just me???) – so when I hit a bit of a brick wall in week 4 I went looking…
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Yes I can API!
I have a “real” assignment (for work as opposed to study) to do some data visualizations using maps. It’s been a journey of over a week to get to the place where I’m ready to start, and the journey has had some educational detours along the way that I thought I’d share. Naturally, because I’m…
Sho't left to data science 