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19 Aug 2019 9 min to read
AI vs Machine Learning vs Deep Learning – Know the difference
And what actually is AI or machine learning or deep learning? In this article, I want to zoom in on the subject and for a moment I would like to play fortune teller and look into the future of these technologies.
- What is an articifal intelligence and how it works?
- Machine learning as a branch of artificial intelligence.
- What is deep learning?
- What are the differences and what brings the future for those technologies?
Before we start, there is one thing that has to be established: a set of rules that have to be followed when solving problems is what we call an algorithm. In machine learning, those algorithms are used to perform calculations in order to find the answer.
What is AI
First of all, we need to establish that machine learning and artificial intelligence are not the same things, even though those notions are often used interchangeably. Artificial intelligence has a much broader scope than machine learning. It is the science together with the engineering of making computers behave like humans. It is an incorporation of human intelligence into machines. We can speak of artificial intelligence when a machine completes a task that is based on algorithms by making ‘intelligent’ choices. AI means to replicate the way human brain works and things.
Generally, AI has three different levels:
- Narrow AI when the machine can perform a specific task better than a human
- General AI when the machine can perform any task with similar accuracy to a human
- Active AI when the machine beats a human in many tasks
Real-life examples of artificial intelligence are Google Maps (real time traffic information), spam filters in email inboxes, smart cars or music streaming services.
What is Machine Learning
Machine learning is a branch of artificial intelligence. It is the study of computer algorithms that help computer programs improve / ‘learn’ through experience. ML is involved in the creation of algorithms that can modify itself without any human intervention and therefore produce the desired output.
As the name suggests, machine learning is concerned with enabling computers to ‘learn’, training algorithms to make decisions.
Machine learning processes consists of training the model to use a classifier to identify the class an object belongs to. The classifier has to have data as input with labels assigned to it. Then the algorithm will take the data, analyze it, find a pattern and classify the object to the class. This process where is called supervised learning.
On the other hand, unsupervised learning is when the algorithms are used in pattern detection but do not have labels or output categories.
There also is reinforcement learning where the algorithm learns from its environment and uses the observations gathered to take actions.
Virtual assistants like Siri and Alexa are an amazing examples of machine learning that is used on a daily basis. This also includes the popular tool Google Translate.
What is Deep Learning
Deep learning is a subset of machine learning or even a technique for realizing it. It is the next evolution of machine learning. In deep learning processes, systems learn thanks to the exposure to millions of data. Deep learning networks have two or more layers of data and do not have to be programmed with criteria in order to define items. Going further, DL can automatically discover features that can be used in further classifications.
The learning process in deep learning is done through a neural network. This is an architecture in which the layers are stacked on top of one another. Inputs go into a neuron and are multiplied by weight. Then the result of this multiplication goes to the next layer and creates an input etc. The final layer is the output layer.
Deep learning is used in text recognition (as well as text to speech), text generation and image classification.
Differences between ML and DL + when to use what
Since deep learning is a subset of machine learning it can be hard to separate them.
The biggest difference between the two is that machine learning calls for so-called structured data that aids in the process of problem solving. Deep learning networks do not need labeled data in order to provide output. It uses layers of the network defining specific features of the input eg. an image, just like the human brain.
Now, it is important to distinguish when which one of the solutions will be a better option to use. Deep learning will definitely be more suitable where complex problems with a big amount of data come into the picture. On the other hand, if the data you are planning to use can be easily structured machine learning will be the better option.
What’s next for AI
With the constant development of computers artificial intelligence is growing stronger. Machines are capable of solving harder and harder problems, in some cases even better than humans can.
Taking into consideration the speed of this growth it is hard to foresee the exact future. Some people are excited for things to come, others are scared of the existence of superintelligence that will replace them. For now, it is unlikely since the machines still need human interference at least for now.
Artificial intelligence is most definitely a 21st century concept. It is concerned with making machines act in human way. Machine learning is a branch of artificial intelligence and deep learning is a subset of machine learning.
Artificial intelligence works on the whole problem while in machine learning a problem is divided into smaller parts that are solved individually. Deep learning in about solving a problem end to end.
And what actually is AI or machine learning or deep learning? In …
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