Introduction to Machine Learning

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Questions and Answers

Which of the following best describes the primary goal of machine learning?

  • To create algorithms that can only process structured data efficiently.
  • To enable computers to learn from data and adapt without explicit programming. (correct)
  • To replace human experts in complex decision-making processes.
  • To explicitly program computers to perform specific tasks.

According to Arthur Samuel's definition, machine learning primarily focuses on enabling computers to learn without being explicitly programmed.

True (A)

What are the distinct roles of statistics and computer science in the field of machine learning?

Statistics provides the inference from a sample, and computer science provides efficient algorithms.

In the context of machine learning, the goal is to optimize a ______ using example data or past experiences.

<p>performance criterion</p>
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Match the following machine learning scenarios with the appropriate circumstances for their application:

<p>When human expertise does not exist. = Machine learning is suitable. When models must be customized. = Machine learning is suitable. When models are based on huge amounts of data. = Machine learning is suitable. When humans can't explain their expertise. = Machine learning is suitable.</p>
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Which of the following is NOT a primary type of machine learning?

<p>Deductive Learning (A)</p>
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In supervised learning, algorithms are trained on unlabeled examples to generate functions that map inputs to desired outputs.

<p>False (B)</p>
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Briefly explain the difference between classification and regression in the context of supervised learning.

<p>Classification classifies objects into groups. Regression predicts continuous values.</p>
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In unsupervised learning, an algorithm explores input data without being given an ______ output variable.

<p>explicit</p>
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Match the application appropriately to the category of machine learning:

<p>Supervised Learning = Training a child to walk. Unsupervised Learning = The algorithm finds patterns and classifies data for you. Classification = Classify objects of similar nature into a group. Reinforcement Learning = Learn how to act given an observation of the world.</p>
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Which of the following best describes the purpose of 'association' in machine learning?

<p>To discover interesting relationships between variables in large databases. (C)</p>
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Reinforcement learning focuses on learning from labeled data to predict future outcomes.

<p>False (B)</p>
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Define what is meant by term "interpretation of results" in the context of the disadvantages of machine learning.

<p>It is difficult to understand the results of machine learning.</p>
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In machine learning, the advantage of ______ means that the process can function autonomously in any field.

<p>Automation</p>
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Match the following categories with the appropriate usages of machine learning:

<p>Government Organization = Manage public safety and utilities. Finance Industry = Finds patterns inside data. Healthcare Industry = Uses image detection.</p>
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Which of the following is a key advantage of machine learning in the finance industry?

<p>Discovering patterns and insights in large financial datasets. (B)</p>
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Machine learning is limited to applications involving structured data only.

<p>False (B)</p>
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Name applications that use machine learning?

<p>Marketing, Fraud detection, Supply Chain, Speech and handwriting recognition, Google car and google maps, Software Engineering, and Classifying DNA sequences.</p>
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The advantage of machine learning which involves a constant process of refinement and enhancement, allowing the models to become more accurate and efficient over time, is called ______.

<p>Continuous Improvement</p>
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Match each item from machine learning with the most appropiate use case:

<p>Fraud detection = Finance Classifying DNA sequences = Healthcare Google car and google maps = Transportation Speech and handwriting recognition = Marketing</p>
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Flashcards

Machine Learning

Programming computers to optimize a performance criterion using example data or past experience.

What is the goal of ML

Uses example data to improve decision-making or predictions in computers.

Machine Learning

Optimizing a performance criterion using example data or past experience.

Role of statistics in ML

Statistical inference from a sample to gain insights.

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Role of computer science in ML

Efficient algorithms that solve optimization and evaluate models.

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When to use ML

When human expertise is lacking, models must be customized, and large datasets are available.

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Supervised Learning

Algorithms trained on labeled examples to map inputs to desired outputs.

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Classification

Machine learning technique classifying objects of similar nature into single groups.

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Regression

A supervised machine learning technique used to predict continuous values.

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Unsupervised Learning

Algorithm explores input data without any explicit output variable given.

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Association

Rule-based method discovering relations between variables in large databases.

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Reinforcement Learning

Learning to act given an observation to maximize reward from actions

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ML disadvantages

Data acquisition, time, resources, interpretation, and error susceptibility.

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ML in Automation

Autonomously works in any field, requiring no human intervention.

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ML in Government

Manages public safety and utilities for government organizations.

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ML in Finance

Identifies patterns inside data for finance industry.

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ML in Healthcare

Healthcare uses ML with image detection.

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Study Notes

  • Machine learning involves programming computers to optimize performance using example data or past experience. The goal of ML is to create computer systems that can adapt and learn from experience.
  • Arthur Samuel defined ML as a field of study that enables computers to learn without explicit programming in 1959.

What is Machine Learning?

  • Computer science supports efficient algorithms used to solve optimization problems. It also represents and evaluates models for inference.
  • Statistics relates to inference from a sample.
  • Machine learning optimizes a performance criterion using sample data or past experiences.

Traditional Programming vs Machine Learning

  • In traditional programming, data and rules are input into a computer to generate an output.
  • With Machine Learning, Data and Output are entered into the Computer so the computer generates Rules.

When to use Machine Learning

  • Use machine learning when human expertise is lacking or when humans struggle to articulate their expert knowledge.
  • It's useful when models require customization and rely on substantial amounts of data.

Applications of Machine Learning

  • Machine learning applications include supervised learning, unsupervised learning and reinforcement learning.

Supervised Learning

  • Algorithms are trained using labeled examples, creating a function that maps inputs to desired outputs.

Classification

  • Machine learning groups similar items into a single category.

Regression

  • Regression forecasts continuous values via a supervised ML technique.

Unsupervised Learning

  • Algorithms explores data without explicit direction.
  • It is used to identify patterns and classify data when classifications are unknown.

Association

  • Association discovers data relationships in large databases via rule-based machine learning.

Reinforcement learning

  • It learns how to act from observation.
  • Intelligent agents should act to maximize predicted rewards from actions.

Advantages of Machine Learning

  • Machine learning identifies trends and patterns easily and continuously improves without human intervention.
  • It is able to handle multi-dimensional and multi-variety data with a wide array of applications.

Disadvantages of Machine Learning

  • Machine learning requires data acquisition and significant time and resources.
  • The interpretation of results relies on the data and is often error-susceptible.

Machine Learning Applications

  • ML is used in automation to function autonomously in various fields.
  • Government uses ML to manage public safety and utilities.
  • The finance industry uses ML to identify data patterns in the finance industry.
  • Healthcare uses ML with image detection.
  • Marketing industry uses ML.
  • Fraud detection uses ML
  • The supply chain makes use of ML
  • Speech and handwriting recognition uses ML.
  • Google car and maps use ML.
  • Software Engineering utilizes ML.
  • ML is used to classify DNA sequences.

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