Introduction to Artificial Intelligence


The Basics of AI


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Prerequisites: None.
Level: Beginner.
Learning objectives:
- Gain basic understanding the main AI types.

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Artificial intelligence (AI) is studied in computer science comprising intelligent algorithms that can think and act like humans. These intelligent machines are designed to perform tasks typically requiring human intelligence, such as learning, problem-solving, decision-making, and pattern recognition.

AI has the potential to revolutionize multiple aspects of our lives, from healthcare to education and entertainment. It is already being used in various applications, such as language translation, voice recognition, and autonomous vehicles.

There are several types of AI, including:

Rule-based systems:
This type of system follows the rules to make decisions and perform tasks. They are straightforward, but they can only perform functions explicitly programmed into them.
Expert systems:
The systems design mimics a human expert's decision-making abilities in a specific field. They use a combination of rules and heuristics (rules of thumb) to make decisions and solve problems.
Machine learning
This type of AI uses algorithms and statistical models to allow computers to learn and improve their capabilities on a specific task without being specifically programmed. Machine learning algorithms can be trained on large datasets and make predictions and decisions based on that data.
Neural networks:
These systems are inspired by how the human brain works. They consist of layers of interconnected nodes that can process and analyze data. Neural networks can learn and adapt over time, making them more flexible and powerful than other types of AI.

Several types of AI based on neural networks can be classified based on their capabilities and the level of human-like intelligence they possess. These include:

Weak AI or narrow AI

Weak AI or narrow AI is designed to perform a specific task or function. It is not self-aware and cannot learn and adapt to new situations. However, it can remember past events and use that information to make decisions in the present. It is used in decision-making based on past experiences.

Examples include voice assistants like Siri and Alexa, autonomous vehicles that use sensors and cameras to navigate and make decisions, and Deep Blue. This chess-playing computer defeated world champion Gary Kasparov, in 1997.

Strong AI or general AI

This AI can do any intellectual task that a human being is able to. It is self-aware and can learn and adapt to new situations. Strong AI is still in science fiction and has yet to be achieved.

Super AI

This is AI that is significantly more intelligent than human beings and has the potential to surpass them in almost every cognitive task. Super AI is also still in the realm of science fiction and has not yet been achieved.

Artificial General Intelligence (AGI)

This is AI that has the ability to learn and perform any intellectual task that a human being can without being explicitly programmed to do so. AGI is often seen as a stepping stone toward strong AI.

Artificial Superintelligence (ASI)

This is AI that is significantly more intelligent than human beings and has the potential to surpass them in almost every cognitive task. ASI is a hypothetical future scenario where AI surpasses human intelligence and becomes the dominant intelligence on Earth.

AI has the potential to impact our society and economy significantly. It can be a helping hand for us in solving complex problems and helping us make better decisions, but it raises ethical and societal concerns. As AI advances, it will be essential to consider these issues and ensure that the technology is used responsibly and ethically.

Examples of AI in action

Some examples of AI in action include:

Medical diagnosis:
AI is used to analyze medical images and make diagnoses, potentially improving patient outcomes and reducing the workload of healthcare professionals.
Protein structure prediction:
Neural networks can successfully predict the protein 3D structures based on their amino acid sequence. The 3D structures are important because the structure of a protein can determine its function.
Gene expression analysis:
Neural networks can identify patterns in gene expression data and classify genes into different categories, helping researchers understand the role of genes in biological processes and diseases.
Predictive medicine:
Neural networks can predict the likelihood of a patient developing a particular disease based on their medical history and other risk factors. These predictions can help doctors identify patients at high risk for a specific condition and take preventive measures.
Drug discovery:
Neural networks can predict the likelihood that a particular compound will be effective as a drug. These predictions can help researchers identify potential drug candidates and save time and resources in drug development.
Fraud detection:
AI analyzes patterns in financial transactions and identifies potentially fraudulent activity.
Personal assistants:
AI-powered personal assistants, such as Apple's Siri and Amazon's Alexa, can answer questions and perform user tasks.
Autonomous vehicles:
AI is being used to develop self-driving cars, which have the potential to reduce accidents and improve transportation efficiency significantly.
Education:
AI is used to personalize learning experiences and provide tailored educational resources to students.
Nuclear fusion:
AI is controlling the shape an placement of the plasma.

AI has the potential to impact and transform many aspects of our lives immensely. As it continues to advance, it will be essential to consider this technology's ethical and societal implications and ensure that it is used responsibly.

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