Deep learning (DL) and the human brain share a commonality: they process data in a similar fashion. However, DL learns from unstructured and unlabeled data without human supervision or interaction. It uses a hierarchical level of artificial neural networks designed in much the same way as the human brain, with neuron nodes connected in a web to process machine learning.
Deep learning may be used for decision-making, object detection, speech recognition, and language translation. Traditional machine learning algorithms linearly analyze data whereas deep learning's hierarchical function allows computers to interpret data nonlinearly.
The words ‘deep learning’, ‘machine learning’, and ‘artificial intelligence’ are sometimes used interchangeably, which can cause some misunderstanding. While the artificial intelligence (AI) family includes both deep learning and machine learning, the former is a subset of ML. Therefore, any discussion of Keras or TensorFlow or PyTorch, and the comparisons among them, must begin with an understanding of the complexities of these ideas.
Deep learning is a three-layer neural network that aims to imitate the human brain’s activity by learning from enormous volumes of data - although it falls short of the brain’s capabilities.
While a single-layer neural network may produce approximate predictions, more hidden layers can assist in optimizing and improving accuracy. Artificial intelligence apps and services often rely on deep learning to increase automation by executing analytical and physical activities without human participation. Everyday goods and services - such as digital assistants, voice-enabled TV remote controls, credit card fraud detection, and innovations like self-driving cars - use deep learning technology.
DL frameworks provide the building blocks for developing, training, and evaluating deep neural networks through a high-level programming interface. Some of these frameworks include Keras, TensorFlow, Pytorch, Caffee, etc.
Choosing the correct deep learning framework to study is the first step to achieving any DL learning objectives, whether it is to be applied to business, building a project, or developing valuable capabilities. This choice depends on several parameters. There can be no straightforward answer to which the best framework is; it rests on the preference and abilities of a particular developer.
Following is a list of questions that can be useful when deciding the right DL framework:
Keras is a Python-based API for high-level neural networks. This open-source toolkit is built on top of CNTK, TensorFlow, and Theano and can be used to experiment with deep neural networks quickly. Keras emphasizes modularity, usability, and extensibility. It does not handle low-level computations; instead, it passes them to the backend, which is a separate library.
In mid-2017, Keras was adopted and incorporated into TensorFlow. The tf. Keras module gives users access to it. On the other hand, the Keras library may continue to function independently.
For example, the following code shows how to define a simple convolutional network in Keras.
TensorFlow is a Google-developed end-to-end open-source deep learning framework that was launched in 2015. It is well-known for its documentation and training assistance, its scalable production and deployment options, many abstraction levels, and support for a variety of platforms, including Android.
TensorFlow is a promising and rapidly developing deep learning platform that provides a flexible, complete ecosystem of community resources, libraries, and tools for creating and deploying machine learning programs.
It is a symbolic math toolkit for neural networks that are ideally suited for dataflow programming in various applications. It allows for the construction and training of models at many abstraction levels.
As mentioned earlier, TensorFlow has embraced Keras, making comparisons between the two difficult. Nonetheless, we will compare them for completeness, especially because Keras users are not required to utilize TensorFlow.
The following code shows how to define a simple convolutional network in TensorFlow.
PyTorch is a Torch-based deep learning framework that is relatively young. Developed by Facebook's AI research department and open-sourced on GitHub in 2017, it is used for natural language processing applications. PyTorch is known for its ease of use, flexibility, memory efficiency, and dynamic computational graphs. It also has a natural feel, making code easier to manage and enhancing processing speed.
The following code shows how to define a simple convolutional network in PyTorch.
Keras, TensorFlow and PyTorch are the most popular frameworks used by data scientists as well as naive users in the field of deep learning. But since every application has its own requirement and every developer has their preference and expertise, picking the number one framework is a task in itself.