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What are Neural Networks? - Definition & Meaning

Learn what neural networks are, how they are inspired by the human brain, and why they form the foundation of modern AI and deep learning.

Definition

Neural networks are computational models inspired by the structure of the human brain. They consist of interconnected "neurons" that process information via weights and activation functions, enabling the system to learn complex patterns.

Technical explanation

A neural network contains input layers, hidden layers, and output layers. Each connection has a weight that is adjusted during training via backpropagation and gradient descent. Architectures range from simple feedforward networks to CNNs (for image processing), RNNs/LSTMs (for sequential data), and Transformers (for language and many other tasks). Deep learning refers to networks with many hidden layers. Modern LLMs and vision models are transformer-based neural networks with billions of parameters.

How AVARC Solutions applies this

AVARC Solutions uses neural networks as the foundation for our AI solutions. From recommendation systems and language models to image recognition and predictive models, we build and integrate neural networks that automate complex tasks and extract valuable insights from data.

Practical examples

  • An LLM like GPT trained on vast text corpora that generates natural language thanks to transformer neural networks.
  • A recommendation system combining user behavior and product features through a neural network for personalized suggestions.
  • An image classification model using a CNN to recognize defects in product images for automatic quality control.

Related terms

machine learningllmcomputer visionnlpai agents

Further reading

What is Machine Learning?What is an LLM?AI development services

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Frequently asked questions

Machine learning is the broad field of systems learning from data. Neural networks are a specific architecture within machine learning—they are a type of model, like decision trees or support vector machines. Deep learning uses neural networks with many layers.
Deep learning refers to neural networks with multiple hidden layers. The more layers, the more complex the patterns the model can learn—from simple edges to abstract concepts. Modern models have dozens to hundreds of layers.

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