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CPA (cost per acquisition): What is it? What is it used for?

While cost-per-click and cost-per-thousand impressions are very often used by digital marketing professionals, it is also possible to invoice on a CPA basis. What exactly is this? How is it calculated? What are the advantages and disadvantages? How can…

CTR (click-through rate): What is it? What is it used for?

One of the key indicators for web marketing professionals is the CTR (or click through rate). So what is it? How do you calculate it? And above all, how can it be optimised? We’ll answer all your questions. What is CTR? CTR is an anagram of the t…

CRO (conversion rate optimisation): What is it? What is it used for?

Whether for websites, sales pages or other landing pages, companies have every interest in optimising their conversion rate. To do this, they have a range of tools and methods at their disposal. This is known as CRO (Conversion Rate Optimisation). In t…

ROAS (return on ad spend): What is ROAS? What is it used for?

To maximise their visibility and sales, many companies invest in advertising. But the cost of advertising is often considerable. And the return on investment isn’t always there. That’s precisely why it’s so important to measure ROAS. …

Power BI REST API: what is it and how do you use it?

With Power BI REST APIs can be used to perform integration, administration and governance tasks. In particular, they provide programmatic access to datasets or reports. Find out how you can use these tools to go beyond the limits of Microsoft’s B…

Kolmogorov-Smirnov Test: Understanding this Statistical Method

The Kolmogorov-Smirnov test is a widely used method for comparing data. Discover the amazing story of its invention, and how it is used today in Data Science! In 1933, Andrei Kolmogorov published an article entitled “Sulla determinazione empirica…

Mojo, the programming language revolution

The AI infrastructure company Modular has launched Mojo, a programming language that aims to combine Python with the performance of C. What is Mojo? Mojo is an innovative programming language that seeks to accelerate the development of future machine l…

Shell training: why and how to learn Bash?

A shell training course teaches you how to master a shell like Bash. Find out everything you need to know and how to follow such a course. When a computer starts up, a kernel recognizes all the physical components and allows them to communicate with ea…

Top 10 programming languages

Top 10 programming languages: If there’s one job for which there’s been no let-up in demand over the years, it’s that of programmer or application developer. Here’s the thing: if you’re new to the job, which languages shou…

Power BI Service: How do you create a learning environment for training?

Discover how to create a free learning environment to master Power BI Service with the Microsoft 365 Developer Program. Get hands-on experience with fifteen pre-configured accounts and explore all the features without the need for expensive licences. P…

Cyberattacks: Definition and modus operandi

One morning, users turn on their computers and discover that access is blocked… The website is down and no transactions can be recorded. Many companies have experienced this disaster scenario. What are cyber attacks and how can you do your best t…

No Code: digital creation rethought

It’s time to rethink our habits and take a look at what’s being done elsewhere, what’s emerging and could help us improve our productivity and our work. In an era shaped by digital transformation, a new movement is emerging that is ch…

Python Virtualenv: Your Essential Guide to Virtual Environments

Find out all you need to know about Python’s virtual environments and the virtualenv library: definition, use cases, operation, tutorial, training… One of the main advantages of the Python language is its wide selection of third-party libra…