Data Science: Definition, Skills, Salary…

Data science has many applications, particularly in statistical and decision analysis, machine learning, and artificial intelligence.

What is data science?

Data science refers to the exploitation of data sets to derive value from them. This involves the use of algorithms and other scientific analysis and processing methods, as well as the use of tools to implement them, primarily data science studios.

Why data science?

Data science generates knowledge from the exploration and analysis of data sets. Historically, it is used in decision analysis or business intelligence. More recently, it is also used in big data to process large amounts of data, and in AI to create learning models (or machine learning).

What are the three areas of data science?

Data science is a multidisciplinary approach to using data. It basically trusts mathematicsfor calculation and for business expertise. It uses various technologies related to information technology:

  • data storage,
  • Data visualization,
  • Statistical and probabilistic models,
  • machine learning,
  • Programming software and utilities…

The application areas of data science are countless. However, it is mainly used in the following sectors: aeronautics, econometrics, telecommunications, e-commerce, media and public health. This is an incomplete list.

What is a data scientist?

The mission of a data scientist is to communicate data to improve organizational efficiency. Its main tasks are as follows:

  • To determine the analysis solutions,
  • Collect and analyze relevant information for the business,
  • Creation of control panels,
  • Build algorithms to create predictive models or automate operational processes.

As an expert and responsible for data science within the company, he can be assigned many projects:

  • Market trend analysis,
  • sales forecast,
  • Advertising campaign targeting,
  • Industry predictive maintenance…

Also, improvement of city transport systems, preventive maintenance in industry, customer loyalty…

What is the salary of a data scientist?

According to recruitment firm Robert Half’s 2022 barometer, a junior data scientist based in France can command a gross salary of €50,000 per year. The envelope is €60,000 per year for a mid-level data scientist and €70,000 for a certified data scientist.

What is the profile of a data scientist?

A data scientist specializes in many areas of expertise related to data science, primarily applied mathematics, statistics, machine learning, or risk management.

A data scientist must be versatile and adaptable. He must also demonstrate interpersonal skills to collaborate with different actors of the company, from project managers to business directors.

Data science and data analytics

Data analytics is strictly based on data analysis. A subfield of data science, it relies heavily on statistics and the manipulation of machine learning models to create dashboards and indicators that target a specific business problem.

Data science is moving forward. It also involves designing data mining algorithms, machine learning and deep learning models. Bricks to be used later by data analysts and other business experts.

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