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Top 10 Most Common Mistakes For Data Science Beginners To Avoid To Succeed In Job

  • August 23, 2023
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Meet the Author : Mr. Bharani Kumar

Bharani Kumar Depuru is a well known IT personality from Hyderabad. He is the Founder and Director of Innodatatics Pvt Ltd and 360DigiTMG. Bharani Kumar is an IIT and ISB alumni with more than 17 years of experience, he held prominent positions in the IT elites like HSBC, ITC Infotech, Infosys, and Deloitte. He is a prevalent IT consultant specializing in Industrial Revolution 4.0 implementation, Data Analytics practice setup, Artificial Intelligence, Big Data Analytics, Industrial IoT, Business Intelligence and Business Management. Bharani Kumar is also the chief trainer at 360DigiTMG with more than Ten years of experience and has been making the IT transition journey easy for his students. 360DigiTMG is at the forefront of delivering quality education, thereby bridging the gap between academia and industry.

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Are you a beginner in data science? If that's the case, then you are most likely eager to explore machine learning and predictive analytics. But, first, preventing typical mistakes that compromise your academic progress is critical.

The exciting thing is that you can prevent this from happening if you appropriately prepare for it, then you have the power to acquire a competitive advantage.


On the other hand, there are many data science schools, master's programs, bootcamps, blogs, and videos. As a beginner, you are perplexed. Which course should I take? What techniques should I concentrate on? What software language and programming language do I need to learn?

Each data scientist has a unique journey and is predisposed to follow that learning route. Therefore, it is challenging to recommend the best course of action without knowing you.

However, there are faults that data scientists consistently make in common. Even if you are aware of them, you won't altogether avoid them; instead, you will gradually cease performing them and return to the path of success more quickly.

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⦁ Concentrating only on the theory rather than the projects:

Newcomers in a new industry frequently concentrate their efforts on theoretical work because they want to have a complete knowledge in case someone has a question. Start concentrating on initiatives that highlight your skills and have practical applicability.

These will put your theoretical knowledge to the test and let you decide how and when to use it. You'll have a higher chance of excelling in the field and mastering the two if you comprehend the theory while putting it into practice.

There are a tonne of open-source datasets that are available for experimentation and learning. There are no limitations; jumping is the only remaining choice.

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⦁ Limiting experience to online course reviewing:

Unless you can confirm and corroborate that you took the course and assimilated the content, doing this is a massive mistake.

You'll need to demonstrate that you've committed to doing something and given it some serious thought. You won't be able to convince any hiring manager to provide you with a phone interview simply by mentioning that you audited one or two courses (or even ten or twenty).

Evaluating classes has nothing intrinsically wrong with it. On the contrary, you will discover a lot as a result. But it would be exceedingly challenging to persuade anyone that you studied the material and put in the effort when you need to establish that you know (especially when you start circulating your CV to potential employers). By explaining to potential employers that you are well-versed in the terminology and principles of the industry and that you can keep your word, a certificate helps to remove this potential barrier.

⦁ Excessively writing algorithms from scratch:

Students make the same error as the next, failing to see the bigger picture. You don't have to code each algorithm from scratch at first.

While it's OK to use a few merely for learning, algorithms are becoming commonplace. Moreover, most practitioners don't write algorithms from scratch because of sophisticated machine learning libraries and cloud-based solutions. Understanding how to use the correct algorithms in the right situations is crucial today (and in the right way).

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⦁ Neglecting communication abilities:

Data science teams are often still rather small in most companies when compared to development teams or analyst teams. Thus, a senior engineer would commonly oversee a young software engineer, but data scientists typically work in more interdisciplinary settings.

Your ability to communicate with peers from different technical and mathematical backgrounds will be evaluated by interviewers. To avoid making this mistake, practise explaining technical concepts to non-technical audiences. For example, try explaining your preferred algorithm to a buddy. Additionally, practise providing brief solutions to interview questions regularly after having prepared them.

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⦁ Integrating Machine learning before learning the prerequisites:

The data science students must put in a lot of effort and be aware of the strategies they need to acquire to unlock the milestones. They will better understand how the algorithm functions, how you can modify it, and how you may use it to advance current technologies.

Understanding certain concepts in this context requires a strong background in mathematics. For example, even though you detest complex calculus, you must study it to work in the data science industry. Additionally, you must be proficient in concepts like probability, linear algebra, and statistics.

⦁ Underestimating feature engineering:

A first version of the dataset would typically be processed and cleaned by data scientists. Then, they would start working on intense grid searches immediately to optimize the model parameters for a particular assignment. Although it would save them time, this method is ineffective.

Most machine learning experts advise investing extra effort in developing some predictive features rather than conducting a two-hour grid search for the parameters. This method is referred to as feature engineering.

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⦁ Only speaking about degrees:

A lot of prospective applicants have degrees, and data science has experienced tremendous growth in popularity similar to engineering. There are many online course options, which has increased the interest of thousands of individuals in data science. However, recruiters are not just concerned with the material on a CV. They are seeking someone who has extensive data science expertise and is skilled at applying it to real-world problems in order to develop a solution.

Do not, then, assume as a newcomer that your degree in data science is equivalent to a passport. Spend a lot of time studying some practical skills instead. Recognise the stages of a data science project's lifecycle, build your model to fit into the present business framework, and, most importantly, try to fulfil deadlines.

⦁ Not asking for support:

Data science beginners frequently make the error of not seeking assistance when necessary. Understanding that no one is an expert and that seeking assistance is acceptable when essential. Working with a mentor is a terrific method to gain assistance. As you learn data science and machine learning, a mentor can offer advice and help. If you don't already have a mentor, you can look for one online through sites like Kaggle or LinkedIn.

In addition, there is a tonne of online resources available for learning data science. Online data science classes, YouTube tutorials, books, and blog entries are a few of these resources. When you're stuck on a problem you can't solve, don't undervalue the value of such resources; they might be a real gem.

⦁ Concentrating only on complex topics in Data Science:

Another mistake newcomers to data science make is focusing only on challenging topics. As a result, you can undertake data science endeavours that appear "interesting" but don't advance your knowledge or advance your field. If your first efforts focus on challenging data science issues like deep learning, neural networks, and parameter optimisation, you probably won't tackle the main problem.

Starting small is the first step in the solution. Make sure you understand the foundations of data science before moving on to more challenging problems. A firm understanding of mathematics, statistics, probability, data processing, and data purification are required for this. Lastly, consult more seasoned data scientists for assistance. By chatting with others who have knowledge in the sector, you may find out more about the topics that are worthwhile to study from the start.

⦁ Having a resume with too much technical jargon:

The most significant error most candidates make is filling their resumes with excessive technical jargon. Instead, your resume should draw the reader in with vivid descriptions and exciting bullet points. In particular, if you're searching for entry-level roles, your resume should highlight the influence you could have on a business.

Do not just mention the programming languages or libraries you have used to prevent making this error. Instead, explain how you used them and what happened as a result.

So why are you still waiting?

Now more than ever is the time to begin developing new abilities. How we live, work, and play is fundamentally altering as a result of new technology. Developing knowledge in these areas helps you see the world from a wider perspective and equips you with a wealth of knowledge to research cutting-edge technologies and unknown regions.

These principles will make it possible for you to create a fruitful plan for entering the profession of data science. They are exceedingly frequent mistakes that are also easy to correct. The rigorous training courses offered by 360digiTMG provide you with the knowledge and abilities required to succeed as a data scientist or data engineer. You will get practical experience by using what you have learned in our curriculum to resolve problems at work or for customers. Machine learning, natural language processing, predictive analytics, data visualisation, and other areas are covered in our programme.

We are always there to help you on your data journey! If you have any queries concerning the application procedure, get in touch with our admissions team.

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