October 13, 2017

Hi, I was just listening to an old episode of Data Skeptic on the 'Student's t-distribution'. In the episode Kyle strongly emphasized that the populations that the samples are coming from need to be normally distributed. I am currently studying t-tests in an inferential statistics course and wanted to ask you if there is a misunderstanding here: I thought that one does not need to care what distribution governs the population (whether it is normal or not) because the sampling distribution will always be normally distributed due to Central Limit Theorem. Maybe we are talking about different uses of the t-test. I was referring to the use of t-test to determine if a sample belongs to a population of a known mean or belongs to another population that is significantly different. In this case, the original population does not need to be distributed normally, am I wr... View More >

September 28, 2017
Recommending a Guest

by Kyle Polich

Since inception, Data Skeptic has doubled in listenership every few months. We are overwhelmed with gratitude for the response and the community that has formed around the show, particularly in our Slack chan... View More >

September 26, 2017

I got a great question from a listener, a snippet of which is be... View More >

September 15, 2017

The more I have learned, the less convinced I have become that there is anything special about the human brain which cannot eventually be replicated in a machine. If one wants to claim that humans are intrinsically more special then ANYTHING which could ever be engineered, I believe the burden of proof is on them to demonstrate this cl... View More >

September 13, 2017
Deep Thinking

by Kyle Polich

This blog post is about Garry Kasparov's Deep Thinking: Where Machine Intelligence Ends and Human Creativity Begins. Yet, it's not a review, exactly. Nor is this a response. These are just my thoughts I had during the deeply enjoyable time I spent reading this excellent b... View More >

September 12, 2017

Last week I had a chance to visit USC's LONI: Laboratory of Neuro Imaging. Thanks to Farshid Sepehrband (@fsepehrband) for the invite and tour! The best part for me about doing data skeptic is when I have opportunities to visit fantastic companies and labs doing really interesting w... View More >

September 11, 2017

A recent article on TechCrunch warns that hackers are sending silent commands to speed recognition systems with ultrasound. These sorts of attacks are interesting because are sometimes plausible, sometimes outrageous, and oftentimes teach us something about security concerns we didn't know to worry about previou... View More >

September 10, 2017
Prophecy Fulfillment

by Kyle Polich

This bonus feed episode is a short recording made in Vietnam... View More >

September 8, 2017

I got an email from a listener (whom I will refer to only by his first name, Alex) who had some feedback on my recent episode with Andy Martin from Zillow. The email was long but I can paraphrase the core question in this snip... View More >

August 27, 2017
Plimpton 322

by Kyle Polich

I recently came across the Guardian's coverage of Daniel Mansfield's work on an ancient mathematical tablet. I found the coverage to be deeply disappointing, in no small part to the misleading way, IMO, that Mansfield presents the res... View More >

August 24, 2017
Farcon 2017

by Kyle Polich

I had the pleasure of attending and presenting at Farcon 2017. Here's my summary of the conference.... View More >

August 22, 2017

Today we're launching a chatbot for our site. Rather than start from one of the many excellent tools out there to build a quick, effective bot out of box, we're starting from scra... View More >

August 19, 2017

Today's blog post is a hands-on demo and evaluation of the Google Cloud Natural Language API. Like all cherry picked examples/demos, their site shows an impressive result in the system's ability to do entity identification, sentiment analysis, and extract syntax. How will the results be on a real world data... View More >

July 15, 2017
Backing Up a Podcast

by Kyle Polich

Everything on the internet is there forever. Right? It depends on what you mean. If something makes it into the Internet Archive, I feel pretty confident it will be around for the duration of my lifetime. Yet, I'm from a time right on the cusp on when permenance became a possibility. I can name many bands that were just a few years to early to appear on Youtube and get an album into iTunes. Those works are much more at risk of bit... View More >