Machine Learning Roadmap

Machine Learning, Artificial Intelligence, and Deep Learning are getting more and more popular with each passing day, especially when businesses invest large amounts of money in adopting these technological advancements. There is a huge demand for Machine Learning professionals, especially with the job growth jumped by almost 75% in the last 4 years. So, if you are planning your career in ML, now is the time. We have created a Machine Learning Roadmap to make your path a little easier. It's no wonder that the worldwide Machine Learning business is growing, thanks to the massive investments made by the largest and most powerful organizations.

What is Machine Learning?

Machine Learning (ML) is a subfield of Artificial Intelligence (AI) that enables software and apps to improve their prediction accuracy without being expressly designed to do so. Machine Learning takes in the historical data and patterns as input to generate the outcomes. It relies on using data and algorithms to simulate how humans learn, intending to steadily be precise.

Machine Learning is being incorporated into several applications, including search engines, spam protection, recommendation engines, and speech recognition.

Popular companies like Facebook, Netflix, IBM, Twitter, Pinterest, and more use Machine Learning.

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Purpose of Machine Learning

Machine-learning algorithms estimate final output based on past data and draw conclusions using that data. Several sectors, like healthcare and banking, have reduced the workload by using AI to recognize similarities in their patterns that may otherwise have gone undiscovered. Machine Learning allows computers to grow increasingly precise at predicting outcomes.

Machine Learning is excellent, but what sets it apart is its ability to forecast outcomes in order to avert future problems.

Market demand projections, stock values, and even survival predictors can all be used to evaluate how likely something is to sustain in a certain environment.

What is the Machine Learning roadmap?

The Machine Learning roadmap is all about giving you a pathway to follow if you wish to pursue a career in the field. Here, we will be talking about ML algorithms, libraries, and how working on a side project will help you gain the required industry experience. So, without further ado, let’s get started!

Machine Learning Roadmap

Understanding Machine Learning Algorithms

Machine Learning Algorithms are divided into 3 categories:

Supervised Learning:

This algorithm's target or dependent variable is to be predicted from a set of independent variables. It involves creating a method that maps inputs to required outputs using these variables. This process goes on till the model reaches an appropriate degree of precision.

Unsupervised Learning

There is no target or dependent variable to forecast or evaluate in this algorithm. It is commonly used for segmenting consumers into separate categories for a particular action, and it is utilized for clustering populations into different categories.

Reinforcement Learning

The system is instructed to make certain decisions using this algorithm. It works like this: the system is placed in an environment where it must constantly instruct itself through trial - and - error. This system adapts from its previous experiences and attempts to gather the most relevant information in order to make appropriate business decisions.

Popular Machine Learning Algorithms are:

  • Linear Regression
  • Logistic Regression
  • K-means
  • Decision Tree
  • SVM
  • Naive Bayes
  • kNN
  • Gradient Boosting algorithms
  • Random Forest
  • Dimensionality Reduction Algorithms

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Mastering Machine Learning Libraries

An ML library is often a collection of functions and procedures that are ready to use. A solid selection of libraries is an essential aspect of a developer's toolkit for researching and building advanced programs without having to involve in comprehensive coding.

Developers can avoid writing unnecessary code by using these libraries. You may find a dedicated library for every other task. We have text processing libraries, graphics libraries, data manipulation libraries, scientific calculation libraries, and so many more.

Several Machine Learning libraries are in the developing stage as Machine Learning is continuing to open up new opportunities for mankind and attract newbies.

Some of the popular libraries are:

Keras: Keras is an open-source software library that may be used to create deep learning models for smartphones. 

Matplotlib: Matplotlib is a multi-platform data visualization and graphical plotting library for Python and NumPy. Matplotlib's APIs can also be used to incorporate plots in graphical user interfaces.

NumPy: NumPy (Numerical Python) is a library that consists of multidimensional array objects and a collection of functions for processing them. NumPy allows you to conduct mathematical and logical functions on arrays.

Fann: The word FANN stands for Fast Artificial Neural Network. The open-source Machine Learning library, as its name implies, aids in the development of neural networks, namely multi-layer feed-forward artificial neural networks (ANN). FANN supports both completely integrated and loosely connected neural networks.

Pandas: Whenever it comes to working with massive amounts of data tables, pandas are the ultimate Machine Learning library that comes to mind. It reduces the time and energy needed for large, complicated calculations to just a few lines of code.

Scikit-Learn: It is a popular Machine Learning algorithm that is ideally used to build algorithms like linear regression, logistic regression, and more.

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Working on a Machine Learning Side Project

Hands-on practice cannot be replaced by cramming theories. Since the topic is right in front of you, texts and lectures can mislead you into a deceptive sense of accomplishment. However, you may find that putting this theoretical learning into practice is more difficult than it appears.

Working on projects allows you to swiftly develop your applied Machine Learning skills while also allowing you to explore an intriguing field.

You can also include live projects in your résumé, making it easier to land your dream job, explore interesting career options, and possibly demand higher pay.

Some of the popular Machine Learning projects that you can work on are as follows:

  • Stock Prices Predictor Using TimeSeries
  • Movie Recommendation System Movielens Dataset
  • Social Media Sentiment Analysis Using Twitter Dataset
  • Sales Forecasting Using Walmart Datasets
  • Wine Quality Predictions Using Wine Quality Datasets

Learning Objectives


A beginner who is just getting started with Machine Learning must have an idea of what ML is, how it works, ML algorithms, and some of the ML applications as well.

We have already discussed Machine Learning algorithms. Let us now have a look at what a beginner must be aware of.

The key elements of ML algorithms

Training data: It consists of raw data, labels, classes, and datasets.

Representation: It includes instances, hyperplanes, decision trees, a set of rules, neural networks, and graphical models.

Evaluation: It includes error rate, precision, mean avg precision, softmax, posterior probability, IoU, K-L divergence, cost, and margin.

Optimization: It is divided between combinatorial optimization and continuous optimization.

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Functions of ML systems

Descriptive: Data is used to describe what happened.

Predictive: Data is used to predict what will happen.

Prescriptive: Data is used to suggest possible actions to take.

Machine Learning Applications In Real-life
  • Recommendation Engines
  • Self-driving cars
  • Voice recognition
  • Traffic prediction
  • Customer support using chatbots


Learning objectives as an intermediate for master Machine Learning will, undoubtedly, require having a firm grasp on the basics. Have a quick overview of Machine Learning libraries if you wish to proceed further.

Going one step ahead, you should acquire a thorough understanding of feature selection techniques in ML, feature engineering, classification algorithms like logistic regression, decision trees, support vector machines, k-nearest neighbors, and Naive Bayes.

While you are at it, learning about model training and selection, dimensionality reduction, and transfer learning will have you solidify your ML knowledge even more.


By the time you reach the advanced level of Machine Learning, you should have a thorough understanding of feature engineering and management of missing data along with an understanding of why such methods are important.

You must also be well-versed in applying a range of advanced Machine Learning concepts, libraries, and algorithms including how to tune and regularize these models.

Eventually, you may also get to examine the effectiveness of statistical models with precision, and validate the usage of specific models. Assessing the data adequacy and applicability for a certain modeling assignment will also come under the learning objectives for advanced Machine Learning.

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This is where we come to an end with the Machine Learning roadmap. Begin now if you wish to pursue a career in Machine Learning. The industry is growing, and the faster you grasp the depth of Machine Learning techniques, the quicker you'll be able to solve challenging real-life problems. Nevertheless, if you have prior expertise in the industry and want to advance your career, you can look for options to further your knowledge.

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Saritha Reddy
Saritha Reddy
Research Analyst
A technical lead content writer in HKR Trainings with an expertise in delivering content on the market demanding technologies like Networking, Storage & Virtualization,Cyber Security & SIEM Tools, Server Administration, Operating System & Administration, IAM Tools, Cloud Computing, etc. She does a great job in creating wonderful content for the users and always keeps updated with the latest trends in the market. To know more information connect her on Linkedin, Twitter, and Facebook.

Machine Learning has a bright future in India and other places around the world, especially when compared to other industries in terms of job prospects. According to a report by Gartner, both AI & ML will have approximately 2.3 million jobs in 2022.

Even though many advanced Machine Learning concepts are difficult to use and require an extensive understanding of advanced mathematics, statistics, and software development, beginners may get a lot done with the fundamentals, which are freely available. And as long as you gain sufficient knowledge of concepts and algorithms, you will be good to go. 

Machine Learning courses range anywhere from 3 months to 12 months. The curriculum, on the other hand, differs depending on the type of degree or certification you pursue. You can get significant Machine Learning knowledge through a 3-month course, which could lead to entry-level roles at top companies.