Applications and Methodologies Class 11 Notes

Teachers and Examiners (CBSESkillEduction) collaborated to create the Applications and Methodologies Class 11 Notes. All the important Information are taken from the NCERT Textbook Artificial Intelligence (417).

Applications and Methodologies Class 11 Notes

applications and methodologies class 11 notes

Key Fields of Application in AI

According to the father of Artificial Intelligence, John McCarthy, “Artificial Intelligence is the science and
engineering of making intelligent machines, especially intelligent computer programs”.

Artificial intelligence aids in the creation of intelligent hardware and software that functions, learns, and reacts much like humans. AI is now ingrained in all aspects of modern life, including research, engineering, business, medicine, video games, and many more. The applications that are covered here are a few.

Applications and Methodologies Class 11 Notes

Chatbots

One of the uses for AI is the chatbot, which simulates human dialogue using text chats, voice commands, or both. We can characterize a chatbot as an artificial intelligence programme that can mimic a real conversation with a user in their native tongue. On websites, messaging services, mobile applications, or telephones, they make it possible to communicate via text or audio.

Types of Chatbots

Chatbots can broadly be divided into two types:
1. Rule based Chatbot
2. Machine Learning (or AI) based Chatbot risk

Rule – based Chatbot
This is a Chatbot in its most basic version, and it responds to user questions in accordance with a set of pre-established rules. For instance, a chatbot positioned at a front desk at a school can access information from the school’s archive to respond to questions about the cost of attendance, the courses offered, the pass rate, etc.

Rule-based chatbots can only be used for straightforward discussions; they are ineffective for more complicated ones.

Applications and Methodologies Class 11 Notes

Machine Learning (or AI) based Chatbot risk
Such chatbots are more sophisticated chatterbots that can have in-depth real-time dialogues. Prior to answering the questions, they process them (using layers of neural networks). AI-based chatbots continue to evolve by learning from previous experience and reinforced learning.

AI chatbots are created and designed to respond to user inquiries in a reasonable and pertinent manner. The difficulty, however, lies in matching the requests with the closest and smartest response that would please the user.

Example of AI Based Chatbot

HDFC Bank’s EVA – Electronic Virtual Assistant is making banking service simple and is available 24×7 for the HDFC bank’s customers.

Apollo Hospital Amidst – Apollo hospitals (as well as many other hospitals and medical businesses) released a Chatbot to assess one’s risk level amid the current panic around COVID 19.

Applications and Methodologies Class 11 Notes

Natural Language processing (NLP)

Natural language is simply human language. It refers to the various ways that people can communicate with one another, including spoken, written, non-verbal, and facial expressions (sentiments such as sad, happy, etc.). Natural language processing is the field of computer science that enables computers to comprehend and process human language naturally (NLP).

Artificial intelligence that deals with the use of natural language in communication between machines and people. NLP’s primary goal is to read, interpret, comprehend, and coherently make sense of human language in a way that benefits everyone.

Applications and Methodologies Class 11 Notes

Text Recognition

Now that a camera or other device has captured an image of a license plate, NLP software uses a neural network layer to extract the plate’s number. However, the quality of the image also affects how well the data is extracted.

Summarization by NLP

NLP is able to summaries an article into a condensed narrative without altering the meaning in addition to reading and understanding individual paragraphs or the entire piece. It can produce the complete article’s abstract. There are two methods of summarization: one involves extracting significant terms from the source text and combining them to create a summary (extraction-based summarization), and the other involves condensing the original text (abstraction-based summarization).

Applications and Methodologies Class 11 Notes

Information Extraction

Information extraction is a technology that allows you to search within a document or find a specific piece of information. It automatically extracts structured data from unstructured sources, including entities, relationships between entities, and attributes describing entities.

Speech processing

Speech processing describes a computer’s capacity to hear human speech, analyze it, and comprehend its content. Alexa and Siri, among other technologies, understand what we say when we speak to them.

Applications and Methodologies Class 11 Notes

Computer Vision (CV)

The study of CV makes it possible for computers to “see.” It is a branch of artificial intelligence that deals with the analysis and comprehension of the information contained in digital images such as movies and photographs. The following areas are where CV has been most successful:
a. Object detection
b. Optical Character Recognition
c. Fingerprint Recognition

Computer Vision: Primary Tasks

There are primarily four tasks that Computer vision accomplishes:
1. Semantic Segmentation (Image Classification)
2. Classification + Localization
3. Object Detection
4. Instance Segmentation

Applications and Methodologies Class 11 Notes

Semantic Segmentation

Image categorization is another name for semantic segmentation. Semantic segmentation is a technique used in computer vision to categories images based on their visual content. In essence, a model is taught to recognize a set of classes—objects to identify in images—with the aid of labelled sample pictures. In plain English, it takes an image as input and outputs a class, such as a cat, dog, etc., or a probability of classes, from which one has the greatest likelihood of being accurate.

Applications and Methodologies Class 11 Notes

Classification and Localization

The localization job is activated when the object has been identified and labelled, which creates a bounding box around the object in the image. The location of the object within the image is referred to as “localization.” If a picture contains, for example, a dog, the algorithm determines the class and draws a bounding box around it.

Object Detection

Humans can instantly recognize the objects in a video or image when they see it. Computers can produce intelligence like this. If there are numerous objects in the image, the algorithm will locate each one by drawing a bounding box around it. As a result, the bounding boxes and labels around the items will be numerous.

Applications and Methodologies Class 11 Notes

Instance segmentation

The CV technique known as instance segmentation aids in clearly recognising and delineating each object of interest present in an image. This procedure gives us a far more detailed understanding of the object or objects in the image by helping to generate a pixel-wise mask for each one. The figure below illustrates how objects from the same class are displayed in various colours.

Applications and Methodologies Class 11 Notes

Weather Prediction using AI

Global weather forecasts are being accelerated by new AI-based weather forecasting research. The research, which was just published in the Journal of Advances in Modeling Earth Systems, may be used to predict potential extreme weather 2–6 weeks in advance. Accurate weather forecasts with more time to prepare and minimise potential disasters give communities and vital industries including public health, water management, energy, and agriculture more time.

IBM Global High – resolution Atmospheric Forecasting System

A high-precision global weather model called IBM Global High-resolution Atmospheric Forecasting System (IBM GRAF) refreshes hourly to give a more accurate picture of weather activities all over the world.

Applications and Methodologies Class 11 Notes

Panasonic

On its weather predicting model, Panasonic has been working for years. The business manufactures TAMDAR, a unique weather sensor used on commercial aircraft.

Price forecast for commodities

The earth’s natural resources and agricultural products are considered commodities. These products include things like wheat, livestock, soybeans, corn, oranges, different metals, coal, cotton, and oil, among others.

Applications and Methodologies Class 11 Notes

Self-Driving car

A self-driving automobile is a vehicle that can sense its surroundings and move safely with little to no human intervention. It is also referred to as an autonomous vehicle (AV), a driverless car, a robot car, or a robotic car. Self-driving cars use a combination of radar, lidar, sonar, GPS, odometry, and inertial measuring units to sense their environment.

Applications and Methodologies Class 11 Notes

Characteristics and Types of AI

1. Artificial Intelligence is autonomous and can make independent decisions — it does not require human inputs, interference or intervention and works silently in the background without the user’s knowledge. These systems do not depend on human programming, instead they learn on their own through data experiencing.

2. Has the capacity to predict and adapt – Its ability to understand data patterns is being used for
future predictions and decision-making.

3. It is continuously learning – It learns from data patterns.

4. AI is reactive – It perceives a problem and acts on perception.

5. AI is futuristic – Its cutting-edge technology is expected to be used in many more fields in future.

Applications and Methodologies Class 11 Notes

Data Driven AI

Data centric AI systems have become more popular as a result of recent advancements in low-cost data storage (hard discs, etc.), quick processors (CPU, GPU, or TPU), and advanced deep learning algorithms that have made it feasible to extract enormous value from data. These AI systems are particularly effective in foretelling the future based on their past experiences.

Autonomous System

An autonomous system is a piece of technology that can react to its surroundings without human input. Often, artificial intelligence serves as the foundation for autonomous systems. A floor-cleaning robot, a Mars rover, a self-driving car, and other autonomous systems are examples. Another illustration of an autonomous system is an IoT device, such as a smart home system.

Recommendation systems

A recommendation system makes suggestions or recommendations to users based on data analysis and a variety of characteristics, including the user’s past behavior, preferences, and interests. Data is required for training this data-driven AI. For instance, when you view a video on YouTube, it suggests a number of other videos that are similar to, better, or more appropriate than the videos you often search for, favor, or have recently been watching.

Applications and Methodologies Class 11 Notes

Cognitive Computing (Perception, Learning, Reasoning)

To simulate the functions of the human brain (speech, vision, reasoning, etc.) and aid people in making decisions, cognitive computing is a technology platform based on AI and signal processing.

Applications of Cognitive Computing

Humans can utilise cognitive computing to help them make decisions. The treatment of disease/illness through assisting medical professionals is one example of cognitive computing and its applications.

The IBM Watson for Oncology, for example, has been deployed at the Memorial Sloan Kettering Cancer Center to offer doctors evidence-based therapy options for cancer patients. Watson creates a list of theories and suggests possible treatments for doctors in response to inquiries from medical professionals.

AI and Society

While there is little doubt that AI is transforming the world, there is also a lot of hype and misinformation surrounding it. It is essential that we have a realistic perspective on AI if individuals, corporations, and the government are to fully benefit from it.

Nearly every aspect of society, including health, security, culture, education, employment, and enterprises, will be impacted by AI. As with any change or development, AI can have both beneficial and harmful effects on society, depending on how we use it.

Healthcare

IBM Watson (An AI Tool by IBM) can predict development of a particular form of cancer up to 12 months before its onset with almost a 90% accuracy.

Such advancements are occurring often in the world of medicine. China used Artificial Intelligence (AI), Data Science, to track cases and combat the pandemic in order to contain the CORONA virus spread. Robots and AI tools will eventually work alongside doctors in our healthcare sectors.

Transportation

Artificial intelligence and machine learning have made significant advancements in the sector of transportation.

With the help of cutting down on traffic accidents, autonomous vehicles, such as cars and trucks, can offer features including lane-changing systems, automated vehicle guiding, automated braking, usage of sensors and cameras for collision avoidance, and real-time information analysis.

Disaster Prediction

One of the best techniques for predicting natural events is artificial intelligence (AI). Before the development of artificial intelligence, it was impossible to imagine a model that could virtually accurately predict the weather for the upcoming few days.

Agriculture

The farming industry faces a variety of difficulties, including erratic weather, a lack of natural resources, an increase in population, etc. Farmers can now analyze a range of factors in real time, such as weather, temperature, water use, or soil conditions gathered from their farm, with the aid of artificial intelligence (AI).

Integrity of AI

In 2016, it was shown that the professional networking website LinkedIn has a gender bias in its code.
The site would display suggestions and search results for male users who went by the name “Andrew” and its variants when a feminine name was searched, such as “Andrea”. For male names, the website did not display any comparable suggestions or results.

Technological Unemployment

Some groups of individuals will lose their occupations as a result of substantial automation (caused by the development of AI and robotics).
Intelligent machines will take the place of these jobs. Both the workforce and the market will undergo major change; while new, highly skilled positions will be created, some will become outdated.

Disproportionate control over data

The more data you have, the more intelligent machines you will be able to create. Data is the fuel for AI. Technology behemoths are significantly funding initiatives involving AI and data collection. They have an unfair advantage over their smaller rivals as a result.

Privacy

Whether a person is at work, home, or a public venue, AI can be used to identify, track, and monitor them across various devices. AI doesn’t forget anything, which just makes everything more complicated. Once AI recognizes you, it does so permanently!

Applications and Methodologies Class 11 Notes

Image Datasets

Image Datasets is categorized in three types –

a. Initial Training Dataset – These are the images students should use to “teach” their machine learning model which image is a cat and which image is a dog.

b. Test Dataset – These are the images that students should use to test their classifier after training. Students should show these images to their model and record if their classifier predicts if the image is of a dog or a cat.

c. Recurating dataset – This is a large assortment of images students can use to make their training dataset of cats and dogs larger and more diverse.

Employability Skills Class 11 Notes

Employability Skills Class 11 MCQ

Employability Skills Class 11 Questions and Answers

Subject Specific Skills Notes

Artificial Intelligence Class 11 Notes

Teachers and Examiners (CBSESkillEduction) collaborated to create the Artificial Intelligence Class 11 Notes. All the important Information are taken from the NCERT Textbook Artificial Intelligence (417).

Artificial Intelligence Class 11 Notes

Artificial Intelligence

Artificial intelligence (AI) is a method that enables a machine to carry out all cognitive tasks that would typically be performed by humans, such as perceiving, learning, and reasoning.

“The Science and Engineering of making intelligent machines, especially intelligent Computer programs
is Artificial intelligence” –JOHN MC CARTHY [Father of AI]

World Famous AI Machines

IBM Watson

An IBM supercomputer called Watson uses artificial intelligence (AI) with sophisticated analytical software for the best results as a “question-answering” machine.

Chatbot – Alexa, Sire, Google’s Home

A chatbot is a software program or a computer programme that mimics human conversation through voice or text exchanges. More users are using chatbot virtual assistants to complete simple tasks in business-to-business (B2B) and business-to-consumer (B2C) situations.

Boston Dynamics AI Robot

Boston Dynamics focuses on developing robots with superior dexterity, intelligence, and mobility. Boston Dynamics has introduced the second of its industrial robots. Stretch, a commercially produced warehouse box-moving robot, is now on display after the company introduced Spot, a four-legged robot dog, on the market in 2020.

History of AI

Artificial Intelligence In the year 1950, Since Alan Turning established the “Turning Test” to measure intelligence in the 1950s of the previous century, the field of modern artificial intelligence has gained momentum.

Artificial Intelligence In the year 1955, The term “artificial intelligence” was first used by John McCarthy, considered the father of artificial intelligence. McCarthy has made the most to modern artificial intelligence, along with Alan Turing, Allen Newell, Herbert A. Simon, and Marvin Minsky.

Artificial Intelligence In the year 1970, During the 1970s, the computer era expanded. These devices were more efficient, less expensive, and could store more data. They were incredibly capable of abstract thought, self-recognition, and natural language processing.

Artificial Intelligence In the year 1980, The funding for research and algorithmic tools came over these years. A deeper user experience improved computers and boosted learning abilities.

Artificial Intelligence In the year 2000, Many failed attempts, unfortunately! By the year 2000, the technique had become widely accepted. The milestones were recognised as things that needed to be done. Despite a lack of government funding and popular support, AI might yet succeed.

Artificial Intelligence Based Application

Gmail – automatically separating emails into “Spam” and “Not Spam” categories. Your time is greatly reduced by spam emails being automatically sent to the spam folder.

YouTube – YouTube will suggest videos to view based on their subject and, to a large extent, these suggestions will match the videos you have selected.

Flipkart or Amazon – You’re being advised to purchase products of your choice by Flipkart or Amazon.

Difference between Conventional programming and Machine Learning

While both traditional programming and machine learning (ML) coding are computer programmes, their approaches and goals are different. Like your school uniform and your dress casual, both are made of fabric but serve different purposes.

Conventional Programming – In traditional programming, a human (the programmer) creates the programme by hand. However, since the logic is not programmed, rules must be manually created or manually coded.

conventional programming

Take a look at an example. Below are the steps to convert Celcius scale to Fahrenheit scale

Step -1: Take input (Celcius)
Step-2: Apply the conversion formula: Fahrenheit = Celcius * 1.8 + 32
Step -3: Print the Output (Fahrenheit)

Machine Learning – machine learning, the algorithm automatically creates the rules from the data. Data preparation, natural language user interfaces, automatic outlier detection, recommendations, causality and importance recognition, and many more areas can all see a rise in the value of your embedded analytics. All of these characteristics contribute to accelerating user insights and lowering bias in decisions.

machine learning programming

For example, if the same Python program above is to be written using the Machine Learning approach, the code will look like this:

Step 1: Feed lot many values in Celcius (i.e. -40, -10, 0, 8, 15, 22, 38)
Step -2: Feed corresponding Fahrenheit values (i.e. -40, 14, 32, 46, 59, 72, 100)
Step -3: Pass these 2 sets of values to Machine Learning (ML) algorithm
Step- 4: Now you ask the ML program to predict (convert) any other celcius value to Fahrenheit, and program will tell you the answer.

How is machine learning related to AI?

AI is a field of study that aims to develop intelligent computers with human-like abilities, such as speech recognition, vision, information assimilation, planning, and problem-solving. In general, AI encompasses all disciplines or technologies that seek to build intelligent machines.

Without being formally programmed, machine learning enables machines to learn, forecast, and advance on their own. To put it simply, machine learning is all about learning. A typical ML system begins in a “slow state” (similar to that of a toddler) and eventually becomes “superior” by learning from examples (like an adult).

How is machine learning related to AI

What is Data? Define it.

Data is a representation of information that can be processed or transmitted by humans or machines. Examples include information about students, schools, sports teams, businesses, and animals. A collection of information, such as statistics, words, images, photos, audio or video clips, maps, measurements, observations, or even just a simple description of something, is called data.

Type of Data

  1. Structured Data
  2. Unstructured Data

Structured Data

The most common kind of “structured data” is “quantitative data,” and most of us deal with this kind of data on a daily basis. Structured data contains established data types and formats that make it easy to insert into database columns and spreadsheet fields. They are well-organized and simple to analyse.

Examples of structured data is name, age, address etc.

Unstructured Data

The most common definition of “unstructured data” is qualitative data, which cannot be handled or analysed using traditional relational database (RDBMS) techniques.

Examples of unstructured data include text, video, audio, mobile activity, social media activity, satellite imagery, surveillance imagery and the list goes on.

Terminology and Related Concepts

Machine Learning

“Machine learning is the science of getting computers to act without being explicitly programmed.” – Stanford University
“Machine learning algorithms can figure out how to perform important tasks by generalizing from examples.” – University of Washington

The term “machine learning” (ML) is now used to refer to an application of AI that gives the system the capacity to learn from experience and advance utilising the data at its disposal.

Supervised, Unsupervised and Reinforcement learning

Machine learning is often divided into three categories – Supervised, Unsupervised and Reinforcement learning.

Supervised, Unsupervised and Reinforcement learning

Supervised Learning 

An strategy to developing artificial intelligence (AI) known as supervised learning involves training a computer system on input data that has been labelled for a certain output.

Unsupervised Machine Learning

An method known as unsupervised learning discovers patterns in untagged data. The idea is to drive the machine to create a concise internal model of its environment through imitation, which is a key learning strategy for humans, and then draw creative inspiration from it.

Reinforcement Machine Learning

A machine learning training method called reinforcement learning rewards desired behaviours and/or penalises undesirable ones. A reinforcement learning agent can typically perceive and comprehend its surroundings, act, and learn by making mistakes.

Deep Learning and Neural Networks

A neural network is an artificial intelligence technique that instructs computers to analyse data in a manner modelled after the human brain. It is a kind of artificial intelligence technique known as deep learning that makes use of interconnected neurons or nodes in a layered structure to mimic the human brain.

Artificial neural networks used in deep learning are modelled after brain-like neural networks. The theory behind ANN in deep learning is that the human brain forms the correct connections to carry out its functions, and that this pattern can be replicated using silicon and wires in place of living neurons.

Artificial Neural Network

Artificial neural networks (ANNs) are layers of computer programme components called neurons (also known as nodes), coupled to other neurons in a layered fashion. Until they can categorise the data as an output, these networks transform the data from one neuron to another. Another method to create a computer programme that learns from data is the neural network.

Artificial Neural Networks

The three distinct nodes known as input, hidden, and output make up the neural network structure that is used the most frequently.

Input Node – The input node is the layer of the neural network where information or initial data from the outside world is entered. After that, the data is sent to the concealed node, where calculations can start.

Hidden Node – At this point, there is no link to the outside world. The machine uses the data it obtained from the input node at this stage to perform computation and processing on it. More than one concealed layer is possible.

Output Node – The final step is the output node, when computations are completed and data is made available to the output layer for subsequent transport back into the physical world.

Deep Learning

Deep learning is a subset of machine learning that is entirely based on artificial neural networks. Since neural networks resemble the functioning of the human brain, deep learning is also a form of brain impersonation. We don’t have to explicitly programme everything in deep learning. It’s crucial to understand that not everything in deep learning needs to be explicitly programmed.

Let us now understand the difference between Machine Learning and Deep Learning:

MACHINE LEARNINGDEEP LEARNING
Works on small amount of Dataset for accuracy.Works on Large amount of
Dataset.
Dependent on Low-end Machine.Heavily dependent on High-end
Machine.
Divides the tasks into sub-tasks, solves them individually and
finally combine the results.
Solves problem end to end.
Takes less time to trainTakes longer time to train.
Testing time may increase.Less time to test the data.

Here are a few examples of Deep Learning at Work:

Automated Driving – To detect objects like stop signs and traffic lights robotically, automotive experts are employing deep learning. Deep learning is also utilised to recognise pedestrians, which lowers the likelihood of accidents.

Aerospace and defence – Another application of deep learning is in the identification of satellite-observed objects and the location of safe and risky areas for troops.

Medical Research – Cancer researchers utilise deep learning to automatically identify cancer cells.

Industrial Automation – By automatically determining when individuals or things are too close to heavy machinery, deep learning is assisting in enhancing worker safety around such equipment.

What machine learning can and cannot do?

Here are a few examples of Machine Learning that we use every day:

Virtual Personal Assistant – like Siri, Alexa, Google Home etc.

Predictions while commuting – like Traffic Forecasts on Google Maps.

Video Surveillance – Modern video surveillance systems use artificial intelligence (AI) to detect crimes before they occur. They observe people’s strange behaviour, such as prolonged periods of inactivity, stumbling, or snoozing on benches, etc.

Social Media Services – Facebook suggests friends to you based on your connections with them and how frequently you visit their accounts. A list of Facebook members who you can add as friends is provided based on ongoing learning.

Filtering of email spam and viruses – Emails are organised in accordance with some guidelines for email spam. Receiving emails is managed by mail filtering, which also finds and deletes emails containing dangerous codes like viruses, Trojans, or malware.

Product recommendations – After you shop online for a product, you frequently receive emails from related merchants. The products are either comparable or suit your preferences, which undoubtedly improves the buying experience.

Online Fraud Detection – Machine learning is lending its potential to make cyberspace a secure place by tracking monetary frauds online.

Jobs in AI

  1. Data Analytics
  2. Research Scientist
  3. Researcher
  4. Software Engineer
  5. AI Engineer
  6. Data Mining and Analysis
  7. Machine Learning Engineer
  8. Data Scientist
  9. Business Intelligence (BI) Developer
  10. Big Data Engineer/Architect

Employability Skills Class 11 Notes

Employability Skills Class 11 MCQ

Employability Skills Class 11 Questions and Answers

Subject Specific Skills Notes

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