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Articles by Jérôme Spielmann
The importance of probabilistic thinking when faced with uncertainty
Why probabilistic thinking can be an extraordinarily powerful and practical tool to approach the unknown and uncontrollable Photo by Loic Leray on Unsplash In a video published in November 2020, physician and philosopher of science Etienne Klein called for engineers to express their opinions and participate in a public debate. As a result, I decided to take the plunge and offer a different point of view on a topic close to my heart, which is that of decision making and uncertainty.
How to create outstanding custom choropleth maps with Plotly and Dash 🌎
Photo by Juliana Kozoski on Unsplash Make your first steps with GeoJSON files & learn how to build choropleth maps anywhere on the earth. Illustrated with covid open data. Let’s begin with that weird word. Choropleth. If you never tried to plot those colored maps, it’s likely you never used that word. As a matter of fact, it comes from Greek. Choros means “area”, and Plethos means “multitude”.
A gentle introduction to the mathematics behind A/B testing
Picture by Carlos Muza on Unsplash. A/B testing is a tool that allows checking whether certain causal relationship holds. For example, adata scientist working for an e-commerce platform might want to increase the revenue by improving the design of the website. If we assume that the revenue is a function of the proportion of users that click on a certain link, then the data scientist would like to know if the redesign of the webpage increases this proportion.
What to Expect in a Data Analyst Interview
HR interview The first step after yourresume passes the initial requirements screen is a call with HR. This call is typically with the recruiter for the position to get a sense of your job experience, provide you details about the position, gauge your interest, and ask about your salary expectations. There are many guides on how to manage the salary expectation question but I’d like to point out in recent years some state laws now prohibit employers from asking your salary history.
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