Differential Privacy: how to study people without being weird and gross
Apple wants to study iPhone users' activities and use it to improve performance. Google collects data on what people are doing online to try to improve their Chrome browser. Do you like the idea of ...
27 Jun 201618min
How the sausage gets made
Something a little different in this episode--we'll be talking about the technical plumbing that gets our podcast from our brains to your ears. As it turns out, it's a multi-step bucket brigade proce...
20 Jun 201629min
SMOTE: makin' yourself some fake minority data
Machine learning on imbalanced classes: surprisingly tricky. Many (most?) algorithms tend to just assign the majority class label to all the data and call it a day. SMOTE is an algorithm for manufac...
13 Jun 201614min
Conjoint Analysis: like AB testing, but on steroids
Conjoint analysis is like AB tester, but more bigger more better: instead of testing one or two things, you can test potentially dozens of options. Where might you use something like this? Well, if ...
6 Jun 201618min
Traffic Metering Algorithms
This episode is for all you (us) traffic nerds--we're talking about the hidden structure underlying traffic on-ramp metering systems. These systems slow down the flow of traffic onto highways so that...
30 Mai 201617min
Um Detector 2: The Dynamic Time Warp
One tricky thing about working with time series data, like the audio data in our "um" detector (remember that? because we barely do...), is that sometimes events look really similar but one is a litt...
23 Mai 201614min
Inside a Data Analysis: Fraud Hunting at Enron
It's storytime this week--the story, from beginning to end, of how Katie designed and built the main project for Udacity's Intro to Machine Learning class, when she was developing the course. The pro...
16 Mai 201630min
What's the biggest #bigdata?
Data science and is often mentioned in the same breath as big data. But how big is big data? And who has the biggest big data? CERN? Youtube? ... Something (or someone) else? Relevant link: ht...
9 Mai 201625min
