Introduction to Key Data Science Concepts

Data science is an extensive term that includes data analysis, machine learning, artificial intelligence, and deep learning. Many companies today are engaged in data analysis, especially for marketing purposes. With the help of it, businesses can devise various models that will help them increase sales. Data science helps to extract useful information from the large amount of data created by customers. Today, most companies are aware of the value of a data-driven business plan and need talented people to provide an overview of the ongoing flow of information. Several surveys show that nearly 20.4% of U.S. executives say they would rather have data professionals by 2021, and the demand for exports will increase as we continue to digitize our physical world.

Basics of Data Science

Almost all communication with technology is data: your purchase on Amazon, your Facebook feed, Netflix, and even knowing the faces you need to connect to your phone. Amazon is a great example of how data collection can benefit the average customer. Amazon packages remember what you bought, what you paid for, and what you asked for. This allows Amazon to customize the following views of your website to suit your needs. For example, if you’re looking for outdoor equipment, baby supplies, and groceries, Amazon won’t send you outdated ads about vitamins or product tips. Instead, you will see things that might be useful to you.

Similarly, data science helps to recall the usual shopping. For example, if you order some stuff every month, you will see that the coupon or promotion is applied at the same time each month. This use of data is conceived as a stimulus and motivation for thinking. Data science is good for both businesses and consumers. The study found that big data can increase retailers ’profits by 60.5% and that a personalized location data service provides consumers with an economic surplus of $ 600 billion, meaning they can buy goods or services at a lower price. For instance, if you set a hot tub to $ 7,500 and find exactly the type you want for $ 6,000, your financial surplus would be $ 1,500.

Key Concepts of Data Science

Here is a brief introduction to Data Science concepts;

Python Programming

Python is one of the most popular programming languages in the world. This is ABC data science because Python is the language in which all beginners start computer science. It is widely used for all purposes because it is very versatile. Python can be used for web applications and websites with Django, bottle microbes, and general programming tasks with a standard PyPI library, a graphical interface with PyQt5 or Tkinter. Moreover, collaboration with Jython (Java), Cython (C), and almost any other program language available today. Of course, Python is also the first language used in research, along with the usual pile of panda (mathematical operation), matplotlibi, and seabed (visualization), and stiffness (vectorized computation).

R Programming

R is the best language for statistics because it is a language devised by statisticians. If you know statistics and math well, you will appreciate programming in R. Language offers you the best support for all probability distributions, statistical functions, math functions, conspiracy, vision, synergy, and even machine learning and AI. Anything you can do in Python – can be done by R as well. R has a rich ecosystem for all data science needs and is the preferred language for researchers in the field.

Data Preparation and Data ETL

Yes – welcome to one of the most disconcerting aspects of data science! If data science has a dark side, that is. Keep in mind that if your company doesn’t have dedicated engineers to take care of all the redundancies and data management you perform, you spend 90% of your time working with raw data. There are big problems with real data. It is usually unformatted, in the wrong format, contains a lot of missing values, many invalid values and types that are not suitable for data processing. It will be a long time before the data scientist has to deal with this problem. 

And your analysis by data experts can be misused against invalid and missing data. If you are not particularly blessed, in practice you will need to manage the data, which includes running your ETL (Extract, Transform and Load). ETL is a concept of data processing and data storage that involves loading data from external data storage or storing data in a form suitable for data processing and in a state suitable for data analysis. Lastly, you often have to load data that is too large for your working memory – this problem is called external loading.

Machine Learning with Python and R

If you’re a newcomer to machine learning (ML), Python, and R, you have an idea of ​​the area. But don’t worry; there are ways to facilitate learning and spending as little time as possible or teaching almost all of the above topics. Once you learn the basics of Python and R, you need to start creating a machine learning model. Based on experience, we recommend that you divide the time into 50% Python and 50% R and divide as much time as possible without switching languages or working between languages. 

What do you think? Spend how much time you learn one programming language at a time. This avoids syntax and conceptual errors, as well as problems due to grammatical confusion. Now, at work and in real life, you are more likely to work as a team and be responsible for only part of the job. However, when you work or start a business, you complete all the steps yourself. Be sure to take the time to process the information and give your brain enough time to rest and become familiar with the materials you are trying to teach.

Develop Your Skills – Data Science

When developing a career in data analysis, it is important to know what skills are needed to analyze data and work with data. Industries are struggling with Big Data and companies are looking for jobs with such skills and demand. For starters, potential data analysts might find it useful to use free books and other resources. This will allow beginners to become familiar with the concepts and provide a solid foundation for further development. However, those who want to direct their external action should look for ways to acquire and apply the skills needed to acquire data. Whether you opt for data science training, an online course, a boot camp, you can pursue education to succeed in this highly competitive field.

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