In my previous story I described how to master a profession from scratch. In this article, I will focus on the key skills required to become a Data Scientist. Data Scientist — 12 Steps From Beginner to Pro 💻 Hard Skills 💻 1. Mathematical base Knowledge of machine learning techniques is an integral part of the Data Scientist job. Working with machine learning algorithms requires an understanding of the basics of calculus (for example, partial differential equations ), linear algebra, statistics (including ), and probability theory. Knowledge of statistics helps the Data Scientist to critically assess the significance of data. The mathematical base is also important in developing new solutions, optimizing and adjusting the methods of existing analytical models. Bayesian theory Online courses in the following areas of mathematics with high student ratings: Statistics Fundamentals with Python Data Scientist with Python Foundations of Probability in Python Linear Algebra for Data Science in R Machine Learning Fundamentals with Python 2. Programming Collecting, cleaning, processing, and organizing data are also important skills of a Data Scientist. For these tasks and the implementation of the machine learning models themselves, the programming languages ​​Python and R are used. How to get started with Python, I discussed in the article “ ”. I Want to Learn How to Program in Python. Where to Begin? : Python courses Python Programming Machine Learning Scientist with Python Deep Learning in Python Data Scientist with Python Google's Python Class : R courses Introduction to R Data Scientist with R Machine Learning Scientist with R 3. Working with databases Most Data Scientist tasks require programming skills using the SQL query language. Despite the fact that and are also an important part of Data Science, databases are still the main way of storing data. The Data Scientist must be able to produce complex queries in SQL. NoSQL Hadoop SQL , Vice President of Analytics* Call me crazy, but I want to teach SQL to every data professional of any kind. I’m talking about people from HR, IT, sales, marketing, finance, vendors, and so on. If your goal is to make the most of your data-driven work, the Excel + SQL combination allows you to do amazing things. If your goal is to move into analytics (for example, as a business analyst), you definitely need SQL skills […] Why not start learning SQL this weekend? *David Langer Schedulicity Related courses I found to be essential for Data Science specialist: Fundamentals of Structured Query Language (SQL) SQL for Data Science 4. Data preprocessing Data Scientist also prepares data for analysis. Often data in business projects is not structured (videos, images, tweets) and not ready for analysis. It is imperative to understand and know how to prepare the database to obtain the desired results without losing information. During the phase, it becomes clear what data problems need to be addressed and how the database needs to be transformed to build analytical models. Exploratory Data Analysis (EDA) Data Science Methodology. Data Preparation Exploratory Data Analysis 5. Algorithms To work on creating machine learning projects, you will need knowledge of classic machine learning algorithms such as . The following courses will help you understand the intricacies of machine learning algorithms: linear and logistic regression, decision tree, support vector machine Algorithms: theory and practice. Methods (eng.) Machine Learning Algorithms: Supervised Learning Tip to Tail 6. Skills specific to the selected field of analysis After gaining basic knowledge, you will need specific skills for your chosen field of work. For example, deep learning is a class of machine learning algorithms based on artificial neural networks. These techniques are commonly used to create more complex applications such as object recognition and generation algorithms, image processing, and computer vision. So it is a good idea to be aware of new state-of-the-art algorithms and solutions in different areas of both machine and deep learning. Some useful resources here are: ▶ *A weekly digest of the new state-of-the-art (SOTA) Deep Learning approaches and solutions*medium.com Deep Learning Digest ▶ *Where Artificial Intelligence, Machine Learning, Data Science and Big Data get together.*medium.com AI In Plain English 🔊 Soft Skills 🔊 7. Ability to convey your idea The Data Scientist must be able to communicate the message to a wide audience. This is especially important in the business area, where project customers may not have technical skills and terminology. Presentation of the results will require the skills of presenting information, the ability to convey the idea in simple language. Participate in Data Science conferences and . This is an opportunity not only to improve communication skills and small-talk with colleagues but also to get feedback. online meetups Courses on Principles of a Successful Presentation: ; Data Analysis and Presentation Skills: the PwC Approach Specialization — course by University of Colorado; Communicating Business Analytics Results is a guide to mastering effective presentation skills. A Data Scientist’s Guide to Communicating Results 8. Teamwork The Data Scientist profession involves teamwork on projects. This requires communication skills and a clear vision of their own role in the team. The successful outcome of a collective project directly depends on the effective interaction of the participants. The ability to hear a different opinion and make a joint decision is also important for team participation in Data Science competitions. Kaggle , Co-Founder / Director of Workshop* Data Science is a team sport, and those who say “hitters are the best!” Are likely to face rebellion from the rest of the team. Every team member is valuable! If everyone plays their part well, then the business will continue to derive value from data. *Ku Ping-Shung Data Science Rex Successful teamwork comes with experience, and to master the intricacies, check out the following resources: by John Maxwell — my personal handbook, highly recommend taking a look; The 17 Indisputable Laws of Teamwork by Tom DeMarco and Timothy Lister — one of the favorite books of mine and team leads I worked with Peopleware: Productive Projects and Teams — a course on the intricacies of teamwork and conflict resolution; Working in Teams: A Practical Guide 9. Ability to see the commercial side of the issue A key Data Scientist skill for working in a business environment is the ability to find cost-effective solutions with minimal resource costs. Companies that use Data Science for profit, need for specialists who understand how to implement business ideas with data. , director of the consulting firm * As organizations begin to fully capitalize on internal information assets and explore the integration of hundreds of third-party data sources, the Data Scientist’s role will continue to grow. *Greg Boyd Protiviti About the features of Data Science for business applications: — an interactive course from DataCamp; Data Science for Business is a guide to the intricacies of Data Science in business applications. A Guide to becoming Business-Oriented Data Scientist 10. Critical thinking The skill of critical thinking helps to find approaches and solutions to problems that others do not see. Data Scientist critical thinking is about seeing all sides of a problem, considering data sources, and showing curiosity. The Data Scientist must understand the business problem, be able to model and focus on what matters to solve it, not what is outsider and can be ignored. This skill, more than anything else, determines the success of the Data Scientist. Anand Rao , Head of Global Artificial Intelligence and Innovation in Data and Analytics, PwC Outcome If you are looking to build a career as a Data Scientist, get started now. This area is constantly expanding and needs new specialists. To master the essential Data Scientist skills from scratch, enroll in the free online Data Science courses mentioned here, and become a professional ✨Data Scientist✨. Read More If you found this article helpful, click the💚 or 👏 button below or share the article on Facebook so your friends can benefit from it too. https://slidetosubscribe.com/raevskymichail/ Learn more about and in my other stories: Data Science Machine Learning ▶ Top 11 Python Libraries for Data Science You Must Know 🔝 One of the reasons Python is so valuable to Data Science is its huge collection of data analysis and visualization… ▶ Top 4 Python Libraries for Interpreted Machine Learning Want to achieve a better explanation of machine learning models? Need a good visualization? Use these Python libraries ▶📽️ How Netflix Data Science Interviews Goes? Do you want to work for a cool, young, and famous company? Then you are on Netflix! We tell you what you need to know

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