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What Is Edge AI and How Does It Work?

17/02/2022

Recent strides in the efficacy of AI, the adoption of IoT devices and the power of edge computing have come together to unlock the power of edge AI.

This has opened new opportunities for edge AI that were previously unimaginable - from helping radiologists identify pathologies in the hospital, to driving cars down the freeway, to helping us pollinate plants.

Countless analysts and businesses are talking about and implementing edge computing, which traces its origins to the 1990s, when content delivery networks were created to serve web and video content from edge servers deployed close to users.

Today, almost every business has job functions that can benefit from the adoption of edge AI. In fact, edge applications are driving the next wave of AI in ways that improve our lives at home, at work, in school and in transit.

Learn more about what edge AI is, its benefits and how it works, examples of edge AI use cases, and the relationship between edge computing and cloud computing.

What Is Edge AI? Edge AI is the deployment of AI applications in devices throughout the physical world. It's called edge AI because the AI computation is done near the user at the edge of the network, close to where the data is located, rather than centrally in a cloud computing facility or private data center.

Since the internet has global reach, the edge of the network can connote any location. It can be a retail store, factory, hospital or devices all around us, like traffic lights, autonomous machines and phones.

Edge AI: Why Now? Organizations from every industry are looking to increase automation to improve processes, efficiency and safety.

To help them, computer programs need to recognize patterns and execute tasks repeatedly and safely. But the world is unstructured and the range of tasks that humans perform covers infinite circumstances that are impossible to fully describe in programs and rules.

Advances in edge AI have opened opportunities for machines and devices, wherever they may be, to operate with the intelligence of human cognition. AI-enabled smart applications learn to perform similar tasks under different circumstances, much like real life.

The efficacy of deploying AI models at the edge arises from three recent innovations.

Maturation of neural networks: Neural networks and related AI infrastructure have finally developed to the point of allowing for generalized machine learning. Organizations are learning how to successfully train AI models and deploy them in production at the edge.

Advances in compute infrastructure: Powerful distributed computational power is required to run AI at the edge. Recent advances in highly parallel GPUs have been adapted to execute neural networks.

Adoption of IoT devices: The widespread adoption of the Internet of Things has fueled the explosion of big data. With the sudden ability to collect data in every aspect of a business - from industrial sensors, smart cameras, robots and more - we now have the data and devices necessary to deploy AI models at the edge. Moreover, 5G is providing IoT a boost with faster, more stable and secure connectivity.

Why Deploy AI at the Edge? What Are the Benefits of Edge AI? Since AI algorithms are capable of understanding language, sights, sounds, smells, temperature, faces and other analog forms of unstructured information, they're particularly useful in places occupied by end users with real-world problems. These AI applications would be impractical or even impossible to deploy in a centralized cloud or enterprise data center due to issues related to latency, bandwidth and privacy.

The benefits of edge AI include:

Intelligence: AI applications are more powerful and flexible than conventional applications that can respond only to inputs that the programmer had anticipated. In contrast, an AI neural network is not trained how to answer a specific question, but rather how to answer a particular type of question, even if the question itself is new. Without AI, applications couldn't possibly process infinitely diverse inputs like texts, spoken words or video.

Real-time insights: Since edge technology analyzes data locally rather than in a faraway cloud delayed by long-distance communications, it responds to users' needs in real time.

Reduced cost: By bringing processing power closer to the edge, applications need less internet bandwidth, greatly reducing networking costs.

Increased privacy: AI can analyze real-world information without ever exposing it to a human being, greatly increasing privacy for anyone whose appearance, voice, medical image or any other personal information needs to be analyzed. Edge AI further enhances privacy by containing that data locally, uploading only the analysis and insights to the cloud. Even if some of the data is uploaded for training purposes, it can be anonymized to protect user identities. By preserving privacy, edge AI simplifies the challenges associated with data regulatory compliance.

High availability: Decentralization and offline capabilities make edge AI more robust since internet access is not required for processing data. This results in higher availability and reliability for mission-critical, production-grade AI applications.

Persistent improvement: AI models grow increasingly accurate as they train on more data. When an edge AI application confronts data that it cannot accurately or confidently process, it typically uploads it so that the AI can retrain and learn from it. So the longer a model is in production at the edge, the more accurate the model will be.

How Does Edge AI Technology Work? Lifecycle of an edge AI application. For machines to see, perform object detection, drive cars, understand speech, speak, walk or otherwise emulate human skills, they need to functionally replicate human intelligence.

AI employs a data structure called a
LINK: https://blogs.nvidia.com/blog/2022/02/17/what-is-edge-ai/...
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