Today’s post is directed to those who want to begin their journey with Data Science or are considering this possibility. In this post, I will explain: – What does working in Data Science involve? – What skills are needed? – How to acquire these skills?…
Today, I’ll discuss a often underrated topic in the process of building machine learning models: advanced feature engineering. Many of us have probably heard of this concept. It’s usually covered during studies or in popular courses. However, from my experience, when we create practical ML…
The field of computer science known as “artificial intelligence” (AI) has been developing for decades. In recent years, we have witnessed several breakthrough moments, such as the creation of the AlphaZero model in 2017, which achieved grandmaster level in chess and Go, and the development…
Do you ever wonder how algorithms work that select the ads you see? Or why do you get certain posts on social media? These tasks are handled by recommender systems. At COGITA, the company I managed, building such systems is our specialty. Our team created…
Machine Learning has become a fundamental part of many companies’ data science efforts. But as models have gotten more complex, it can be difficult to know what is causing them to make certain predictions. That is why we observe fast increase of interpretability tools such…
Deploying machine learning models in a production environment is a significant challenge, often requiring as much effort as training the model itself. In this post, I will discuss one of several key aspects that need to be taken care of, which is logging all necessary…
Introduction Today, we will focus on the topic of data collection. This is an important aspect of the work of a data analyst or machine learning engineer. The models we can train and, most importantly, the correctness and usefulness of the entire solution depend on…
Today, I would like to introduce you to the process of planning Machine Learning projects, as practiced in my company, COGITA. If you are involved in ML projects—whether as an analyst or a Data Scientist—you are likely either participating in this process or closely utilizing…
We are currently witnessing a technological revolution that is reshaping many industries, bringing with it previously unimaginable possibilities. At the forefront of these changes is artificial intelligence. However, harnessing its potential in a company is not a simple task. From this post, you will learn…
COGITA Sp. z o.o. is a company registered in the National Court Register kept by the District Court in Częstochowa (Poland), XVII Economic Division of the National Court Register. KRS (National Court Register) number: 0000995030, NIP (Tax Identification Number): 9492257381.
