What is referential integrity? Referential integrity (RI) is a set of rules to ensure that data makes sense when it’s spread across multiple tables. For example, in a referentially correct database, you’d never be able […]
How Referential Integrity Protects Your Credibility Read More
When I started Dataspace in 1994, we were data consultants. We helped clients build data warehouses and data analysis systems. We started providing data contractors when clients asked for that. This taught us how to
Our New Approach to Recruiting Costs for Hiring Data Talent Read More
OK, so here’s one reason why it’s important to interview candidates via video rather than just voice. There are other reasons, but this one is fun! It centers around one of our Python interview questions.
Before our recent presidential elections, many polls showed Joe Biden winning (for those not in the US, we recently had an election, although I suspect you know that). And, he did, in fact, win. But,
Pollsters Should Take A Hint From the CIA Read More
Data Science / Predictive Analytics / Artificial Intelligence Is Largely About Extrapolation At its heart, predictive analytics is about making educated guesses regarding the future based on things you know about the past. Thus, the field assumes
Will Covid Break Data Science? Read More
So, this line appeared on a candidate resume I was reviewing today… Migrated the Django database from SQLite to MySQL to PostgreSQL In fact, it appeared on resumes for two different people I reviewed today.
Resume Fraud: If you’re going to copy from another resume, make sure that one makes sense! Read More
For those who think there’s a lot of fraud in resumes today… you\’re right! We\’ve seen thousands of resumes over the years and, undoubtedly, we’ve seen a lot of fraudulent ones. With resume fraud being
Resume Fraud: Would This Company Use This Software? Read More
As you move your infrastructure to the cloud, it’s important to consider how to not become beholden to a single cloud vendor. In other words, to attain cloud neutrality. I’m afraid that I don’t have
Why you need cloud neutrality Read More
The last edition of our newsletter focused on some very creative applications of data science tools and methods. Most of these were lighthearted, merely reflecting the interest of the creators in their subject matter –
Technology, progress and ethics: a balancing act Read More
Tools and techniques for management reporting and analysis have evolved since computers first came out. One can argue that the first management reporting tool was COBOL (COmmon Business Oriented Language). It allowed business people to
What’s The Difference Between Business Intelligence and Data Science? Read More
