I love writing posts for Damavis’s blog because it allows me to share my passion for Big Data and consulting. It’s also a great way to connect with other consultants and potential clients. I enjoy being able to provide my…
Logistic regression is a statistical methodology that allows modeling the relationships between a binary categorical variable and a set of explanatory variables. Specifically, it models the probability that an observation belongs to one of the categories of that binary variable.…
What is Linear Programming? The concept of Linear Programming or Linear Optimisation refers to that branch of mathematics that is dedicated to optimising (maximising or minimising) a linear objective function subject to constraints in the form of equations and/or inequalities.…
When we deal with data and we want to plot them in graphs, sometimes we need to generate those graphs using a format that allows scaling to any resolution and without losing quality. If we also need some interactivity, being…
In the world of data, several programming languages are used and one of the most famous is Python. Among the multitude of tasks it can perform, it is used to read, treat or transform data, when we need to manipulate…
Previously in our blog, we published an article in which, as an introduction, we explained the mathematical basis behind PCA: Principal Component Analysis: A brief mathematical introduction. In this second part, we will leave the theoretical part and look at…
In the field of object-oriented programming and software design, SOLID principles are a set of 5 principles that facilitate code testing, maintenance and readability. The benefits of a team adopting these principles in their code development include more agile software…
In the world of Data Engineering, it is well known that the use of UDFs (User Defined Functions) in Apache Spark (especially with the Python API) can compromise our application performace. For this reason, at Damavis we try to avoid…
Compilation of the news and news shared this week in our networks at Damavis
Compilation of the news and news shared this week in our networks