Convolutional Neural Networks(CNN): An overview
Convolutional Neural Networks (CNN) are an increasingly popular technology to use in AI. We’ve already talked about Deep Learning and Convolutional Neural Networks (CNN) earlier this year. In this article, we’re going to take a quick look at the deeper possibilities with CNNs, namely, how they can be used to power image classification in a variety of fields including biological image classification.
One of the most powerful applications of Convolutional Neural Networks is in image classification. These networks can be used to classify images on an image by image basis or as a whole into groups of similar objects, which then allows for classification beyond human capabilities. This also applies to objects within the same image, which is another use of CNNs.
Image classification algorithms that utilize CNNs include ResNet, which is one of the best known. We’ll discuss these networks in a bit more detail in another article. First, we should give some context to the concept of classification.
Human’s classification of objects is based on instinctual instinct, which comes from years of training in other forms of scientific, as well as in computer science. This instinct is not so good at recognizing sub-types, sub-groups, and similarities. This makes classification a very difficult task. It’s very much the same problem that deep learning algorithms face in their classification, but deep learning algorithms can deal with it much better because they have to deal with many more things that need to be taken into account to make an accurate classification.
The biggest difference between the two is that, while deep learning involves several algorithms that work together to classify large sets of data, CNN’s only work with one algorithm, which means they are much simpler. What’s more, is that these CNNs do a great job in this area.
The number of layers of CNNs can be anywhere from one to three depending on the needs of the system. This number does vary based on the type of system. The number of layers can also vary depending on the topic.
Another important factor to consider when using CNNs in image classification is that many more hidden layers exist within the networks. While deep learning involves tens of thousands of classes and hidden layers, CNNs only have hundreds of hidden layers, but an even greater number of classes. More classes mean more training data to train on. This obviously requires a larger dataset for classification to occur.
Finally, CNN’s do not differentiate between similar shapes, colors, and sizes of objects; they categorize everything into groups of similar objects. Deep learning on the other hand, in contrast to this, separates the classes by seeing the distinctions between the objects themselves.
Another difference between deep learning and CNNs is that deep learning involves a great deal of memory used in order to identify and recognize classes, which happens in a lot of other areas as well. This includes classification, which happens in any area where you need to recognize similar objects in a large amount of data.
However, convolutional neural networks actually have a great deal of memory used in a limited amount of training data. As we mentioned earlier, convolutional neural networks work on an image by image basis, which means they can classify photos that have only the basic features of a photo and categorize them into their correct categories. But, it can’t deal with high-level information like text or other forms of high definition video.
You can see how deep learning may be a great fit for this particular application because this machine can use its high-level knowledge to classify larger volumes of data. But it does suffer from having a much larger data volume to learn from. So, if you want to use CNN’s for classification, you have to use much smaller datasets for this type of work.
So, if you’re looking for a way to make AI more effective and useful in an area where you are interested, try deep learning over CNNs. The result is typically a much better, more efficient AI, with less human supervision required to develop a classifier.