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What Is Artificial Intelligence? Understanding 3 Basic AI Concepts

To understand some of the deeper AI concepts, you need to understand the differences between machine learning, deep learning, and neural networks.

What Is Artificial Intelligence? Understanding 3 Basic AI Concepts

By Paul Sciglar | April 19, 2018

Artificial intelligence’s progress is staggering. Efforts to advance AI concepts over the past 20 years have resulted in some truly amazing innovations. Big data, medical research, and autonomous vehicles are just some of the incredible applications emerging from AI development.

To understand some of the deeper concepts, such as data mining, natural language processing, and driving software, you need to know the three basic AI concepts: machine learning, deep learning, and neural networks. While AI and machine learning may seem like interchangeable terms, AI is usually considered the broader term, with machine learning and the other two AI concepts a subset of it.

Machine learning and applications

It’s likely that you’ve interacted with some form of AI in your day-to-day activities. If you use Gmail, for example, you may enjoy the automatic e-mail filtering feature. If you own a smartphone, you probably fill out a calendar with the help of Siri, Cortana, or Bixby. If you own a newer vehicle, perhaps you’ve benefited from a driver-assist feature while driving.

As helpful as these software products are, they lack the ability to learn independently. They cannot think outside their code. Machine learning is a branch of AI that aims to give machines the ability to learn a task without pre-existing code.

More on AI Concepts:

  • Download: Applying Machine Learning to Robotics
  • News Analysis: Why Researchers are Creating New Algorithms for Robot-Human Interaction
  • Building a Smart Factory With AI and Robotics
  • Infographic: AI and Chatbots Find Commercial Utility
  • Improving the Effectiveness of IoT Deployments with AI and Machine Learning
  • AI, Robots, and Smart Cities to Get Spotlight at NVIDIA’s GTC 2018

In the simplest terms, machines are given a large amount of trial examples for a certain task. As they go through these trials, machines learn and adapt their strategy to achieve those goals.

For example, an image-recognition machine may be given millions of pictures to analyze. After going through endless permutations, the machine acquires the ability to recognize patterns, shapes, faces, and more.

A well-known example of this AI concept is Quick, Draw!, a Google-hosted game that lets humans draw simple pictures in under 20 seconds, with the machine-learning algorithm trying to guess the drawing. More than 15 million people have contributed more than 50 million drawings to the app.

Deep learning gets ready to play

How do we get machines to learn more than just a specific task? What if we want it to be able to take what it has learned from analyzing photographs and use that knowledge to analyze different data sets? This requires computer scientists to formulate general-purpose learning algorithms that help machines learn more than just one task.

One famous example of deep learning in action is Google’s AlphaGo project written in Lua, C++, and Python code. The AlphaGo AI was able to beat professional Go players, a feat that was thought impossible given the game’s incredible complexity and reliance on focused practice and human intuition to master.

How was a program able to master a game that calls for human intuition? Practice, practice, practice — and a little help from an artificial neural network.

Neural networks follow natural model

Deep learning is often made possible by artificial neural networks, which imitate neurons, or brain cells. Artificial neural networks were inspired by things we find in our own biology. The neural net models use math and computer science principles to mimic the processes of the human brain, allowing for more general learning.

An artificial neural network tries to simulate the processes of densely interconnected brain cells, but instead of being built from biology, these neurons, or nodes, are built from code.

Neural networks contain three layers: an input layer, a hidden layer and an output layer. These layers contain thousands, sometimes millions, of nodes. Information is fed into the input layer. Inputs are given a certain weight, and interconnected nodes multiply the weight of the connection as they travel.

Essentially, if the unit of information reaches a certain threshold, then it is able to pass to the next layer. In order to learn from experience, machines compare outputs from a neural network, then modify connections, weights, and thresholds based on the differences among them.

AI concepts checklist

To learn more about AI, machine learning, deep learning, and neural networks, take a look at some of these other resources:

  • 10 Artificial Intelligence Trends to Watch in 2018
  • Five experts predict the biggest AI trends for 2018
  • AI Trends To Watch In 2018
  • AI and Machine Learning in Your Industrial Robotics Application
  • AI is Powering the Growing Emotional Intelligence Business
  • 5 AI Trends That Will Dominate 2018
  • How Will AI Change Work? Here Are 5 Schools of Thought

Paul Sciglar bio photoAbout the Author:

Paul Sciglar is a columnist and certified accountant with broad experience in strategic analysis, FP&A, investment banking and investment management. He’s also interested in international policies and economic affairs. Follow him on Twitter here.

Machines get smarter

All three of these AI concepts – machine learning, deep learning, and neural networks – can enable hardware and software robots to “think” and act dynamically, outside the confines of code. Understanding these basics can lead to more advanced AI topics, including artificial general intelligence, super-intelligence and AI, as well as ethics in AI.

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