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Although it was stated that the foundation for cognitive computing is artificial intelligence there is a lot of difference between the two.

The basic use of artificial intelligence is to solve the problem by implementing the best algorithm, but cognitive computing is entirely different from artificial intelligence as cognitive computing adds the reasoning, intelligence to the machine and also analyzes different factors to solve the problem.

Artificial Intelligence mimics the human intelligence in machines. This process comprises making the machines learn constantly with the changing data, making sense of the information, and taking decisions including the self-corrections whenever needed.

Human beings use the senses to gather information about the surrounding environment and process that information using the brain to know about the environment. In this context, we can define that artificial intelligence can also include replicating the human senses such as hearing, smelling, touching, seeing, and tasting. It also includes simulating the learning process and this is made possible in the machines using machine learning and deep learning. Last but not least is human responses achieved through the robotics [18].

The cognitive computing is used to understand and simulate the reasoning and human behavior. Cognitive Computing assists humans to take better decisions in their respective fields. Their applications are fraud detection, face and emotion detection, sentiment analysis, risk analysis, and speech recognition [17].

The main focus of cognitive computing includes

1 To solve complex problems by mimicking human behavior and reasoning.

2 Trying to replicate the humans in solving the problems

3 Assists the human in taking decisions and do not replace humans at all.

Artificial Intelligence focus includes

1 To solve complex problems it augments human thinking, it tries to provide accurate results.

2 It tries to find new methods to solve problems which can potentially be superior to humans

3 The main intent of AI is to solve the problem utilizing the best algorithm and not simply mimicking the human brain.

4 The human role is minimized in taking the decisions and artificial intelligence takes over the responsibility.

The main advantage that needs to be highlighted is that Cognitive Computing does not pose any threat to humans. Cognitive computing helps in assisting human beings in taking better decisions in their tasks, endowing human beings with high precision in analyzing the things, same time having everything under their control. In the case of the health care system, cognitive computing assists the specialists in the diagnosis of the disease using the data and advanced analytics, by which it helps to take quality decisions by the doctors [10]. In Figure 1.4 we can see the growth of Cognitive Computing in various continents. In Figure 1.5 we can see the growth of revenue in the various locations of the world.

Figure 1.4 Global cognitive market [17].

Figure 1.5 Global cognitive market revenue, by geography [17].