Data Science for beginners

December 6, 2022

Data Science for Beginners: Introduction, Tools and Technologies

Data science is a field that involves the use of data to solve real-world problems, and it's an exciting career path. Data science is a field that bridges the gap between statistics and computer science. It deals with the collection, storage, organization, analysis and visualization of data. Data scientists are expected to be proficient in statistics, mathematics and programming languages such as Python or R. In this article, we'll take a look at what it takes to be a data scientist and what skills you need in order to start your own career.

What is Data Science?

Data science is the application of scientific methods, processes and algorithms to extract knowledge or insights from data in various forms. It can be defined as a cross-disciplinary field that draws upon techniques and tools from many fields within the sciences, engineering, mathematics, and information technology.

Data scientists are employed by companies ranging from startups to multinational corporations to analyze large amounts of structured or semi-structured data (including text) at scale to derive actionable insights that inform business decisions.

Skills required to start a career in data science?

  • Data wrangling: This involves transforming raw data into a form that can be used by your machine learning algorithms. It's also important to keep track of how you've transformed and cleaned your data, so you know what kind of information was removed or added from the original source (e.g., tables). In short: if you want to build an AI system based on user behavior data, you will first clean up any unnecessary information from previous analyses before feeding it into the model itself.
  • Data cleaning: This step cleans up messy looking datasets by identifying inconsistencies between columns or rows within each row/column pair; for example when there are duplicates among columns (say because users filled out multiple forms) or when they don't match up with what was expected based on demographics mentioned above - then we need someone who knows how exactly should deal with these situations before moving forward with further analysis steps such as supervised learning techniques like regression analysis.

Data science tools and technologies:

  • Python - It is a popular language used for data analysis. It is also known as “the Swiss Army knife” of programming languages because it can be used for many tasks, including machine learning and statistical computing.
  • R - It’s another popular language with many libraries that provide access to various data sources such as databases or Amazon Redshift in order to perform analysis on large volumes of structured and unstructured data.
  • SQL - SQL is used for executing numerous actions on the information kept in databases, such as modifying documents, erasing data, generating and reconfiguring tables, and views.


How to get going with a career in data science?

Data science is a field that deals with the analysis of large amounts of data. In essence, it's about "getting at" hidden patterns in large numbers and then using that information to improve business processes or make new products. Data scientists should have a strong background in mathematics, statistics, computer programming and machine learning—but they also need to be able to communicate their findings effectively.

Data scientists need to have strong programming skills because they often work with large sets of data (e.g., the census) or on problems that require complex mathematical modeling. They also need strong mathematical skills in order to understand how the models they build will perform in real-world situations.

Data scientists often work in teams where each member contributes different areas of expertise: some focus on writing code; others might use more visual approaches such as maps or charts; still others may have great intuition for which variables are important for making predictions about future outcomes based on historical data sets collected over time periods ranging from months up through years!


Start learning the skills of a Data Scientist and get a jump start on your career by signing up for our free masterclass to the Artificial Intelligence course by Pixeltests and IIT-M CEE now.


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