In case you have done your research on how to enter the world of data sciences, then you might have encountered the two terminologies being used interchangeably: data sciences and machine learning. It makes sense if you are confused about what these two have to do with each other, but one thing is clear: it is very important to understand the relationship between these two if you are planning for The Best Data Science Course in Mumbai.
Data Science Is a Vast Field
View data science as the entire process of obtaining actionable insights from data. Data science begins with a problem: why do the customers churn, which products will be most profitable next quarter, and is the transaction fraudulent? It proceeds backwards from there.
The data scientist collects the pertinent data, pre-processes it, explores its patterns, develops algorithms and models to solve the problem, and communicates the results to the decision makers in an actionable manner. The work of a data scientist involves being a statistician, programmer, and storyteller.
The techniques used in data science include SQL, Python, statistics, visualisation techniques, subject matter expertise, and yes, machine learning. However, machine learning is just one of these techniques among many others.
So, Where Does Machine Learning Come In?
Machine learning is a field of data science that focuses on teaching machines and algorithms to learn from data, as opposed to executing pre-set rules. Rather than specifying the exact procedure for how things should be done, you give some examples to an algorithm, and it figures everything out for itself.
That's how Netflix makes recommendations, how Gmail detects spam, how booking engines predict prices, and how credit cards detect fraud. In none of these cases was the system told how to do things in each specific case. The system learned to identify patterns based on historical data.
In practical applications of data science, machine learning is needed when you want to answer questions that are too complicated to solve with conventional approaches. For example, if you want to predict something like a value, a price, a sales forecast, or the lifetime value of a customer, you will resort to regression. If you want to classify something (spam vs not-spam, customer churn vs non-churn), you need classification. If you don't know how many groups are in the data but still want to find them, use clustering. All these are machine learning problems.
You cannot Do One Well Without the Other
Here comes the crux of the matter. Machine learning devoid of any data science understanding gives rise to a highly sophisticated tool that is not applicable. A perfectly accurate algorithm (95% accuracy), for instance, becomes irrelevant when there has been no attempt at addressing the proper question, or the training dataset has been biased, or the outcome is difficult to explain.
Equally, pure data science skills without a clue about machine learning have a limited scope as well. Simple statistics are not going to take you very far here. Solving more complex questions like prediction, decision making, and personalisation almost certainly requires machine learning.
Professionals with the proper mix of data science and machine learning understanding are the ones companies actually fight for.
Building Both Skills at Once
The great thing about all this is that you don't have to study each one individually. The right data science course will teach you statistical knowledge first, and then incrementally teach you machine learning concepts on top of that.
If you happen to be in the NCR area and are willing to develop these abilities in an organized manner, a Data Analyst Course Noida that will equip you with these two aspects will definitely help you gain what employers require in the domain of data science.
Recognizing the relationship between these components is the beginning of confidence in the field.