• Tevosha Edwards

What are Neural Networks?



Neural networks also known as Artificial Neural Networks (ANN) or Simulated Neural Networks (SNN) are a collection of algorithms that are designed after the human brain and are meant to identify patterns. They analyses sensory data by categorizing or grouping raw input using machine perception. The patterns they detect are numerical, encoded in vectors, into which all real-world data must be transformed, whether pictures, music, text, or time series.


Neural networks are made up of node layers, each of which has an input layer, one or more hidden layers, and an output layer. Each node, or artificial neuron, is linked to another and has its own weight and threshold. If the output of any particular node exceeds the given threshold value, that node is activated and begins transferring data to the network's next tier. Otherwise, no data is sent to the next network layer.


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How do Neural Networks work?


There are two methods in which information passes through a neural network. Patterns of information are sent into the network via the input units when it is learning (being trained) or operating normally (after being trained), which trigger the layers of hidden units, which in turn arrive at the output units. This type of network is known as a feedforward network. Not every unit "fires" all of the time. Each unit receives input from the units to its left, and the inputs are multiplied by the weights of the connections along which they travel. Every unit sums up all of the inputs it receives in this manner, and if the amount is more than a specific threshold value, the unit "fires," triggering the units to which it is attached (those on its right).



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A neural network must get feedback in order to learn, just as toddlers do when they are informed what they are doing well or incorrectly. In reality, we all use feedback on a daily basis. Consider the first time you learned to play a game like ten-pin bowling. As you picked up the heavy ball and rolled it down the alley, your brain took note of how rapidly the ball travelled and the path it took, as well as how close you got to knocking down the skittles. When it was your turn again, you remembered what you'd done poorly before, adjusted your movements, and hopefully tossed the ball a little better.


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This is exactly how artificial neural networks work too. They learn through a feedback process called backpropagation. This entails comparing the output of a network to the output it was supposed to create and utilizing the difference to adjust the weights of the connections between the units in the network, working from the output units via the hidden units to the input units—in other words, travelling backward. Backpropagation causes the network to learn over time, reducing the distance between real and intended output to the point where they exactly match, allowing the network to figure things out as they should.


How are Neural Networks Useful


There are presumably a variety of neural network applications that require recognizing patterns and making simple decisions about them. A neural network might be used as a basic autopilot in aeroplanes, with input units reading signals from various cockpit instruments and output units altering the plane's controls to keep it safely on track. A neural network could be used for quality control in a plant.


One main example is Ever AI Technologies' License Plate Recognition (LPR) System that utilizes neural network in object detection. Upon the recognition of a vehicle's license plate, useful information such as the car type, manufacturer, production year, and road tax validity can be leveraged. Neural networks are well-suited to assisting humans in solving complex challenges in real-world scenarios. They can learn and model nonlinear and complicated interactions between inputs and outputs; make generalizations and inferences; uncover hidden correlations, patterns, and predictions; and model highly volatile data and variances required to anticipate unusual events.


Conclusion


Many of the activities we all do on a daily basis involve identifying patterns and using them to make decisions, thus neural networks can assist us in a plethora of ways. They can assist us in forecasting the stock market or the weather, operating radar scanning systems that automatically spot hostile planes or ships, and even assisting doctors in diagnosing difficult diseases based on symptoms. Right now, neural networks may be working within your computer or smartphone. Neural networks have even proved effective in translating text from one language to another. Overall, neural networks have improved the utility of computer systems by making them more human.

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