Data Science Tutorial: The complete guide for beginners 2020


Data science is a field of study where data is analyzed using some specific parameters and a decision is taken based on the pattern and results that are generated by the analysis. It is an interdisciplinary science that is about using scientific methods, algorithms, and processes to study the available data and gain knowledge from it.

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Data science is a mixture of concepts that unify data, machine learning and other useful technologies to derive some meaningful results from the sample data.

It is used as a synonym for many related fields like business analytics, business intelligence, predictive modeling, and plain statistics. It has many concepts taken from earlier solutions and rebranded as a part of Data Science. It is a very sensitive field as there is a big catch- without proper utilization of resources and poor management, data science is bound to give results that are spectacular failures.

Role of a data scientist

A data scientist makes use of the data available to get tangible results that can be used to improve the functionings and performance of an organization. They collect information from a variety of sources. Then they analyze this data with various methods and generate patterns and trends.

These results are then used to give the organization a set of recommendations and a plan of action for the future. These once implemented are again monitored, measured, and analyzed to track its efficiency. This ongoing process is continuously carried out by data scientists to optimize the existing system.

When necessary, they also build ML and AI-based tools for utilizing the data. They also store all these data and clean it up before doing any analysis. In addition, data scientists are also expected to train various teams to internally handle some analytics process.

Becoming a data scientist

A data scientist is an in-demand job and is a good career path. It also pays really good salary. If you want to become a data scientist without a higher education degree, then there are a few options that can choose. Bachelor degree is now introduced for data science. You can choose to go for it. But if you want to do it faster, then you can do an offline course on data science. If that is not possible, consider doing an online course on data science to get the required certification.

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Sr. SDET M Mehedi Zaman

Currently working as Sr. SDET at Robi Axiata Limited, a subsidiary of Axiata Group. As a Senior SDET: - Played a key role in introducing Agile Scrum methodology and implementing CI/CD pipeline to ensure quality & timely delivery. - Trained colleagues on emerging technologies, e.g. Apache Spark, Big Data, Hadoop, Internet of Things, Cloud Computing, AR, Video Streaming Services Technology, Blockchain, Data Science- Developed a test automation framework for Android and iOS apps - Developed an e2e web automation framework with Pytest - Performed penetration testing of enterprise solutions to ensure security and high availability using Kali, Burp Suite etc. - Learned Gauntlet security testing automation framework and shared the lesson learned in a knowledge sharing session

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