Types of Machine Learning Algorithms and Their Applications

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Today, technology has advanced many notches higher than even in the recent past. As a matter of fact, what is to come is even more promising. In the past, computers could not handle big data without a lot of inputs from human beings. Now, we have computing technology that uses various algorithms to handle and retrieve big data from massive cloud storage, analyze it and make a logical conclusion from it.

Machine learning is at the center of the milestones computing technologies have reached. According to experienced machine learning engineers, it requires reliability of artificial intelligence for computer systems to understand large data sets without much input from a human being. Basically, the system will review the past history and make predictions of what will happen in the future.

Different systems and scenarios require different approaches depending on the needs. However, it will all begin with data observations to determine what it looks like and find the trends. The biggest goal is to allow the computers to make conclusions on their own and predict what will happen in the future.

That said, this is not a computer evolution without human efforts. Machine learning algorithms must be established correctly since they are the determining factor in how smoothly operations will proceed. The data scientists and machine learning experts will greatly benefit from such highlights since, in the end, they will understand much more about the concept.

Categories of Machine Learning Algorithms

Just for your understanding, this concept is divided into three broad categories. Any of the many algorithms we are going to discuss below can fall into one of the categories.

  • Reinforced learning – this is a trial and error concept where the machine will keep trying until it gets the right procedure of doing things. Businesses have tried this method in the past, and it has proved to work well. Its main aim is to have the most accurate and appropriate solution to different problems in a business.

The Markov Decision Process is a great example of this concept. The approach here is a mathematical equation to problems that rely on both the owner’s decision and random solutions from the system. When applying this machine learning concept in a business, a wide range of data is required like the data developed from chain stores.

  • Supervised learning – here, predictors are used in determining the results. Simply, the output is mapped to the inputs, and the concerned parties can anticipate the results. For some time, this process will continue until the required accuracy is attained by the system. Then, it can be left to proceed to function, but monitoring and adjustments will continue.

The decision tree is popularly used where pre-defined outcomes are possible. It is a completely supervised machine learning algorithm used to solve many problems, especially in the field of science. A cricket club creates a decision tree to tell the team who will play at any one single time. The system will use variables like gender, age and any other variables to come up with an unbiased list of players.

  • Unsupervised learning – unlike supervised learning, which uses predictable variables, unsupervised learning works with clustering methods and algorithms. This means that there has to be a specific reason why the population is put into different groups. Good examples are the k-means algorithms, and we will discuss more about them below.

Types of Machine Learning Algorithms

Just like there are numerous data problems, the data science professionals have come up with numerous types of machine learning algorithms. The good thing is that all of them are applicable to the many data problems that are available out there. Most of them are useful in a business setup, and paying close attention will help.

Logit regression

The binary values used in computing are 0 and 1. The system in this concept will focus on getting discrete results based on dependent values. Just like other common algorithms, it predicts results from a set of procedures. The logit function method is simply predictive, and the outputs are in between the binary data, i.e. the 0 and 1.

An applicable example is where you are required to solve a work-related problem in line with your skills. The simple probability is that you have a 50 percent probability of solving it and 50 percent probability of not solving it. However, things are different when the task is from another department with which you are not familiar. The probabilities of doing it right, doing it wrong and not doing it at all will take different percentages. For this, R-code and Python programming will be the best.

Linear regression

Just as the name suggests, continuous variables are used to estimate the end results. The regression line is, therefore, the best result that can be attained. According to data experts, Y is the dependent variable and X the independent variable. A complete equation will also include ‘a’ and ‘b,’ which are the slope and the intercept, respectively.

When one decides to arrange a group of kids from the shortest to the tallest, one must not necessarily ask them about their actual height but can look at them physically and make a decision. Computers can also use similar equations to come up with a similar solution. They can just use a continuous flow of data to make various conclusions. Python and R-code programming are commonly used in this concept.

Decision tree

Classification problems are better solved with a decision tree. They can either use continuous or categorical variables. Both independent attributes and significant ones can be used to make homogeneous sets that are distinct. Each set can have many attributes depending on its nature, and they are all applicable.

A decision tree is very applicable in organizations that want to group their staff members to increase productivity. Likewise, potential customers in the market segment can also be grouped using the same concept. Just like with many other machine learning algorithms, Python would be a great language to use.

Random forest

When many decision trees are brought together, they form a forest. However, it is not always the case that the decision trees will form a forest. Where applicable, the decision trees will contribute to the classification of an object through a process called voting. Simply, the decision trees contribute something to the object. It is not a requirement that all must have something to contribute.

Organizations use this method to classify their group managers and supervisors. The system will have something to say in relation to how they have interacted with the person in question. To avoid input from a human, the system can use this algorithm efficiently. Both R-code and Python languages are some of the best-suited programming languages to choose.


This clustering approach to data problems is in the unsupervised category. The data is both heterogeneous and homogeneous to the other data. This technique is as simple as knowing the number of clusters that you have, for example, the K number of clusters. It can also indicate the population that you have. Further, the centroids, which indicate how close each data set is to each other, are used. While Python is popular for this algorithm, R-code is used sparingly.

Support vector machine

In the world of data science, this concept is known as SVM. The n-dimensional or the features available are used to determine where you will classify the data. Each dimension will have its own coordinates and apply the same during the classification.

When the graph coordinates are drawn, the lines will keep going apart and never converge. This means that all variables are similar in a few ways at the beginning. Most experts prefer to use R-code programming and Python to solve problems that call for this.

Dimensionality reduction algorithms

Government agencies and big businesses can efficiently use this method to capture big data. Data that includes learning more about clients and other variables has numerous details. Imagine a hospital that must capture patients bio details, health history and payment details. Even though dimensionality reduction involves the use of many other concepts in one package, it is a powerful algorithm in itself.

The system that is fed the algorithm can pick any variable among thousands of others with ease, as long as it is set well. Among the many available languages that can write this programming, Python is the best.

Gradient-boosting algorithm

The last and one of the most detailed machine learning algorithms is GBM. With its high power in making predictions, experts say that it is one of the best for companies and businesses that need high accuracy and less use of manpower. The secret to its success is in the use of many variables as opposed to relying on one. Here, the Python programming language is the king.

Final Word

Most businesses and organizations can now let go of computers. Deep machine learning is crucial in making sure that the set system is up to the tasks ahead. If reputable and experienced data experts are used, any organization is likely to get an excellent system set up to help them solve any data problem that they have.