A Complete Guide To Machine Learning Algorithms


If you’ve never heard of machine learning, the concept can be pretty confusing. One moment you’re trying to figure out how to use a new app on your phone, and the next thing you know, it’s recommending some new band because it knows what kind of music you like. While this may sound like magic, there are actually very logical processes behind it all; they just happen to be happening in a computer (or other machine). In this post, we’ll cover everything from supervised learning to reinforcement learning and beyond. We’ll also answer questions like “What is artificial intelligence?” and “What does machine learning mean for our future?”


If you’ve ever used a search engine, browsed social media or watched Netflix, then you’ve already interacted with machine learning algorithms. Machine learning is an emerging field of computer science that evolved from the study of pattern recognition and computational learning theory in artificial intelligence (AI). It’s also known as predictive analytics because it enables computers to make predictions based on existing data without being explicitly programmed with rules or information about the world around them.

Machine learning can be thought of as providing computers with new abilities; tasks such as image recognition would be impossible without it!

Supervised Learning

Supervised learning is the most common type of machine learning. It’s used to train models to make predictions and requires labeled data, which can be expensive or time-consuming to obtain.

Supervised learning has two main categories: classification and regression. Classification involves predicting whether an object belongs in one category or another, whereas regression predicts a numerical value for an object (e.g., its price).

Unsupervised Learning

Unsupervised learning is the machine learning task of inferring a function from unlabelled data. Unsupervised learning can be used for exploratory data analysis, dimensionality reduction and clustering. It is also used in computer vision to detect objects in images without any labels or annotations on those objects.

Unsupervised Learning vs Supervised Learning

Supervised and unsupervised learning differ mainly in terms of input data; while supervised learning uses labelled examples (examples where you know what the correct output is), unsupervised learning tries to find hidden patterns within your data without any pre-defined labels (or only with some very vague ones).

Semi-Supervised Learning

Semi-supervised learning is the use of both labeled and unlabeled data. In this case, the goal is to train a model using both labeled and unlabeled examples in order to improve its performance on future predictions.

This can be done by training an unsupervised learning algorithm (like clustering) on your dataset, then using its output as additional input for your supervised learning algorithm. The idea is that you will be able to use more information than what’s available in your training set alone–and thus achieve better results!

Reinforcement Learning

Reinforcement learning is a type of machine learning in which an artificial agent learns to act optimally in an environment by being rewarded for good behavior and punished for bad behavior.

In reinforcement learning, the agent interacts with its environment by receiving rewards or punishments from that environment. The goal of this interaction is to maximize cumulative reward over all past interactions (i.e., ). If the agent’s current action results in a positive reward then it will likely repeat that same action again; if it results in a negative reward then that choice will probably not be repeated.

Machine learning is the future

Machine learning is the future. It will change the world, as we know it.

Machine learning is a way to make computers do things that they were not programmed to do and it has become one of the most popular areas of research today because it allows computers to learn from experience or from data (big data). If you want your business needs addressed by machine learning algorithms then this guide is for you!


You should now have a good understanding of what machine learning is and how it works. We covered supervised, unsupervised and semi-supervised learning, as well as reinforcement learning. We also touched on the application of these algorithms in real life scenarios such as image recognition and recommendation engines.

Gigi Endries

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