Data-Based Projections
Data is often the basis for how we see the world, and how the world sees us. Understanding these data-based projections is the focus of this podcast, which discusses topics related to data analytics, machine learning, and data science. Produced and hosted by Jim Harris.
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Episodes
Thursday Jul 21, 2022
Thursday Jul 21, 2022
Machine learning (ML) can provide unique analytical insights, as well as help automate some operational and decision-making processes more efficiently and effectively than non-ML alternatives. However, ML is also among the buzziest of buzzwords, and many are overselling and oversimplifying its usage.
Do not let anyone frame a data analysis, business problem, or process improvement as an ML use case. Instead, say: That is Not Machine Learning — that is a data analysis, business problem, or process improvement where ML might be able to help. But not before we evaluate other options. And with the understanding that ML is rarely going to be either the first or only aspect of the solution.
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Wednesday Jun 08, 2022
Wednesday Jun 08, 2022
Label Making. That is my simple two-word definition of Machine Learning. Machine Learning is Label Making. ML is LM.
Especially supervised machine learning, which creates either numerical labels (using regression algorithms) to make predictions about a continuous data value (such as sale or stock prices), or categorical labels (using classification algorithms) to assign data to pre-defined groups also called classes (such as Fraud or Not Fraud for financial transactions).
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Sunday May 08, 2022
Sunday May 08, 2022
Based on one of my presentations, this episode provides a five-part vendor-neutral framework for evaluating the critical capabilities of a cloud data analytics solution: Deploy, Store, Optimize, Analyze, Govern.
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Saturday Apr 23, 2022
Saturday Apr 23, 2022
A decade ago, just before the beginning of the data science hype cycle was the big data hype cycle. At that time I had the privilege of sitting down with Ph.D. Statistician Dr. Thomas C. Redman (aka the “Data Doc”).
We discussed whether data quality matters less in larger data sets, if statistical outliers represent business insights or data quality issues, statistical sampling errors versus measurement calibration errors, mistaking signal for noise (i.e., good data for bad data), and whether or not the principles and practices of true “data scientists” will truly be embraced by an organization’s business leaders.
This episode is an edited and slightly shortened version of that discussion, which even though it is from ten years ago, I think it still provides good insight into big data quality, then and now.
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Sunday Apr 10, 2022
Sunday Apr 10, 2022
Before you get started on any data analytics effort, you need to have at least preliminary answers to three questions: (1) What problem are we trying to solve?, (2) What data can we apply to that problem?, and (3) What analytical techniques can we apply to that data?
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Wednesday Apr 06, 2022
Wednesday Apr 06, 2022
In time for opening day of the 2022 Major League Baseball (MLB) season, I discuss the initial results of my Baseball Data Analysis Challenge.
See the extended show notes for links to my input data, my results as a Microsoft Excel file, and my SQL scripts on GitHub.
I used logistic regression machine learning classification models to calculate win probabilities for the Boston Red Sox across nine (9) game metrics, and a Naïve Bayes machine learning classification model to predict individual game wins and losses with an associated probability.
Think you can best my model? Game on! The baseball data analysis challenge continues. Play ball!
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Sunday Apr 03, 2022
Sunday Apr 03, 2022
Why don’t more machine learning models graduate to production? Paige Roberts stops by to help explore this topic and drop some knowledge about how to get more machine learning models deployed in production.
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Tuesday Mar 29, 2022
Tuesday Mar 29, 2022
Back in 2012, Harvard Business Review declared Data Scientist was The Sexiest Job of the 21st Century. Less than a year later, I recorded a podcast discussion with an actual data scientist and Ph.D. Statistician, Dr. Melinda Thielbar, during which she discussed what a data scientist actually does and provided a straightforward explanation of key concepts, such as signal-to-noise ratio, how statistical results should be presented and explained to various audiences, uncertainty, predictability, experimentation, and correlation.
This episode is an edited and slightly shortened version of that discussion, which even though it is from nine years ago, I think it still provides good insight into data science, then and now.
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Sunday Mar 27, 2022
Sunday Mar 27, 2022
Data Analytics, Machine Learning, and Data Science — those are the three things that this podcast focuses its discussions on. This episode provides my definitions in descending order of their complexity in terms of the depth of required knowledge, competencies, and practical, demonstrable skills related to computer science and programming, mathematics and statistics, critical thinking and overall approach to solving problems with data.
My definitions also reflect a descending order of analytical advancement, because I see data science as advanced machine learning, and machine learning as advanced data analytics.
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp
Friday Mar 25, 2022
Friday Mar 25, 2022
Hello, World! Welcome to Episode Zero! Okay, technically it’s the first episode, but I’m a geek who thinks all indexes should start at 0 not 1. Anyway, this is more of a meta-episode introducing the host, explaining what the podcast is about, and letting you know what to expect from future episodes.
The focus of this podcast is to discuss topics related to data analytics, machine learning, and data science. The goal is to provide a mix of information, education, thought leadership, and hopefully a little entertainment—so info-educa-thought-tainment. That’s a word. I just made it up. Which is okay since all words are made up.
This episode is sponsored by: Vertica.com
Extended Show Notes: ocdqblog.com/dbp
Follow Jim Harris on Twitter: @ocdqblog
Email Jim Harris: ocdqblog.com/contact
Other ways to listen: bit.ly/listen-dbp