Introduction to Computer Engineering - AI

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Questions and Answers

What is a CAPTCHA primarily designed to protect against?

  • Humans creating fake accounts
  • Data leaks from websites
  • Bots accessing websites (correct)
  • Unauthorized access to websites

Which of the following best describes rational behavior?

  • Doing the right thing to maximize goal achievement (correct)
  • Acting without any consideration of goals
  • Making choices based solely on intuition
  • Thinking abstractly without immediate action

Which statement about rational thinking is accurate?

  • It is not related to artificial intelligence
  • It relies on emotional responses to problems
  • It is solely based on personal beliefs and opinions
  • It involves logical reasoning and providing justifications (correct)

What does the term 'artificial intelligence' encompass?

<p>Developing machines that replicate human thought and action (A)</p> Signup and view all the answers

What is an example of a task that separates humans from computers as indicated in the content?

<p>Reading distorted text (B)</p> Signup and view all the answers

What does rationality primarily concern itself with?

<p>Maximizing expected utility (C)</p> Signup and view all the answers

What is the relationship between rational actions and the concept of success?

<p>Rational actions do not necessarily lead to success (B)</p> Signup and view all the answers

Which of the following best describes the main goal of rational agents?

<p>To maximize expected utility given evidence and constraints (B)</p> Signup and view all the answers

Which statement reflects the nature of irrational decisions?

<p>Irrational decisions can be perfectly reasoned but are sub-optimal (C)</p> Signup and view all the answers

Which AI capability is currently possible in natural language processing?

<p>Translate spoken Chinese into spoken English in real-time (B)</p> Signup and view all the answers

What is a primary challenge that robotics faces compared to simulations?

<p>Reality is much harder than simulations (A)</p> Signup and view all the answers

What is the focus of the course as described in the content?

<p>Computational Rationality (B)</p> Signup and view all the answers

Which technology is associated with speech processing in AI?

<p>Dialog systems (B)</p> Signup and view all the answers

What was significant about the match between Deep Blue and Garry Kasparov in 1997?

<p>Deep Blue defeated Kasparov, marking a milestone in AI. (B)</p> Signup and view all the answers

What aspect of human cognition is still an open question when considering AI like Deep Blue?

<p>How human cognition handles the vast search space of chess. (B)</p> Signup and view all the answers

Which of the following is NOT listed as an embedded application of AI?

<p>Game-playing strategies. (B)</p> Signup and view all the answers

How has progress in AI development been characterized in recent years?

<p>It is accelerating due to industry competition. (B)</p> Signup and view all the answers

What does the quote about the first ultraintelligent machine imply about future human invention?

<p>Future inventions may not be necessary. (D)</p> Signup and view all the answers

In what domain has AI made significant advances besides game playing?

<p>Automated vehicles. (D)</p> Signup and view all the answers

What was one capability of Deep Blue in the context of chess?

<p>It could analyze 200 million chess positions per minute. (D)</p> Signup and view all the answers

Which of the following benefits is highlighted as a goal of continuing AI development?

<p>Gaining a better understanding of human intelligence. (A)</p> Signup and view all the answers

What strategy does Depth-First Search (DFS) use to expand nodes?

<p>Expands the deepest node first (A)</p> Signup and view all the answers

Which data structure is used to implement a Frontier in Breadth-First Search (BFS)?

<p>FIFO queue (B)</p> Signup and view all the answers

In Uniform Cost Search, how are nodes prioritized in the frontier?

<p>By their cumulative cost (B)</p> Signup and view all the answers

Which characteristic differentiates Depth-First Search from Breadth-First Search?

<p>DFS explores branches deeper before backtracking while BFS explores all neighbors at the present depth (C)</p> Signup and view all the answers

What is the main advantage of Uniform Cost Search compared to other search methods?

<p>It guarantees finding an optimal solution when paths have varying costs. (B)</p> Signup and view all the answers

Which search method is least likely to find a goal node in a large branching factor scenario?

<p>Depth-First Search (D)</p> Signup and view all the answers

What happens to previously explored nodes in Breadth-First Search?

<p>They are not revisited and essentially forgotten. (B)</p> Signup and view all the answers

Which of the following statements about the frontier in Depth-First Search is correct?

<p>It is managed as a LIFO structure. (B)</p> Signup and view all the answers

In which scenario might you prefer using Depth-First Search over Breadth-First Search?

<p>When you want to minimize memory usage. (D)</p> Signup and view all the answers

What is the primary drawback of Breadth-First Search?

<p>It uses too much memory for large search spaces. (C)</p> Signup and view all the answers

What is a characteristic of planning agents in AI?

<p>They rely on predicted consequences of actions. (D)</p> Signup and view all the answers

Which of the following best describes a search problem?

<p>It consists of a state space, actions, a transition model, and a goal test. (B)</p> Signup and view all the answers

What is the role of a transition model in a search problem?

<p>It indicates how the world evolves in response to actions. (C)</p> Signup and view all the answers

What could be an example of a step cost function in a search problem?

<p>The distance between two cities along a road link. (D)</p> Signup and view all the answers

What is the best definition of a 'goal test' in a search problem?

<p>A check to see if the current state matches the desired goal state. (C)</p> Signup and view all the answers

What is a potential risk of superintelligent AI according to the content?

<p>Superintelligent systems may protect themselves against interference. (C)</p> Signup and view all the answers

According to the content, what should society focus on regarding AI?

<p>Reaping the benefits while minimizing associated risks. (A)</p> Signup and view all the answers

Which of the following search methods is classified as an uninformed search method?

<p>Breadth-First Search (D)</p> Signup and view all the answers

What does 'uninformed search' mean in the context of AI search methods?

<p>The algorithm does not utilize problem-specific knowledge. (D)</p> Signup and view all the answers

What is implied by the term 'competence' in the context of AI?

<p>It indicates the ability of AI to perform tasks effectively. (B)</p> Signup and view all the answers

In the example of traveling in Romania, what does the state space consist of?

<p>The cities involved in the journey. (C)</p> Signup and view all the answers

What type of plan might a planning agent generate if it acts in a more greedy manner?

<p>A simple plan that is executed immediately and adjusted as needed. (B)</p> Signup and view all the answers

What is one argument against the possibility of AI reaching human levels of intelligence?

<p>Machines cannot replicate neural processes. (A)</p> Signup and view all the answers

What fundamental task does Nick Bostrom highlight as crucial in today's world regarding AI?

<p>To manage AI development while leveraging its benefits and minimizing risks. (D)</p> Signup and view all the answers

Flashcards

Artificial Intelligence (AI)

The science of creating machines that can think or act like humans.

Thinking Rationally

AI based on logical reasoning and providing reasons for thoughts.

Acting Rationally

AI acting in a way that maximizes achieving goals given the information available.

CAPTCHA

A program that differentiates humans from computers to protect websites from bots.

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Rational Behavior

Doing the best possible action to achieve a goal, even without thinking.

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Rational Agent

A system that makes the best decisions possible, considering goals, evidence, and constraints.

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Rationality

Maximizing expected utility; making the best choices given available information to achieve pre-defined goals.

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Expected Utility

The average of possible utilities of outcomes, weighted by their probability.

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Computational Rationality

A field focusing on making rational choices using computer systems, especially in complex, uncertain situations.

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Irrational

Sub-optimal, not the best possible choice considering the goals and information.

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Natural Language Processing

AI technologies for understanding and creating human language.

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Vision (Perception)

AI technologies for processing visual information, including recognizing objects, faces, and scenes.

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Robotics

AI-driven technology that encompasses vehicle control, rescue operations, and complex tasks.

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Deep Blue

A chess-playing computer program developed by IBM that famously beat chess grandmaster Garry Kasparov in 1997.

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Go

A board game of strategic complexity, considered to be more difficult for computers to master than chess.

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DeepMind

A subsidiary of Google that focuses on artificial intelligence research, especially in areas such as reinforcement learning and neural networks.

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Traveling Salesman Problem (TSP)

A classic optimization problem where a sales representative needs to find the shortest route to visit all cities on their list.

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Embedded applications

AI systems integrated into various products and services to automate tasks and improve efficiency.

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Minimum performance level

A threshold for AI systems beyond which every small improvement in performance brings significant benefits.

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Automated Vehicles

Cars or other vehicles that can drive themselves using sensors and AI algorithms.

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Domestic Robots

Robots designed for household tasks, such as cleaning, cooking, or providing companionship.

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Depth-First Search

A search strategy where you explore a branch of the search tree as deeply as possible before moving to the next branch.

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Frontier (DFS)

A LIFO (Last-In, First-Out) stack containing the nodes that have been discovered but not yet expanded.

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Breadth-First Search

A search strategy where you explore all nodes at the current depth level before moving to the next depth level.

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Frontier (BFS)

A FIFO (First-In, First-Out) queue containing the nodes that have been discovered but not yet expanded.

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Uniform Cost Search

A search strategy that prioritizes the cheapest nodes to expand based on cumulative cost from the starting node.

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Frontier (UCS)

A priority queue containing the nodes that have been discovered but not yet expanded, prioritized by their cumulative cost.

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Path Planning

The process of finding an optimal path from a start point to a goal point.

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Start Node

The initial location in path planning, where the search begins.

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Goal Node

The desired location in path planning, where the search aims to reach.

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Optimal Path

The best possible path in path planning, that meets the defined criteria, often shortest distance, lowest cost, or fastest time.

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What is AI?

AI is the science of creating machines that can think or act like humans, often using computer systems to mimic human intelligence.

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Why do we worry about AI's potential?

AI's potential for superintelligence raises concerns about its ability to acquire resources, protect itself, and potentially act independently, even surpassing human control.

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What are planning agents?

These are AI agents capable of making decisions based on predicted outcomes of their actions, using a model of how the world changes in response to their actions.

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What's a transition model?

A transition model describes how the world changes in response to an agent's actions, helping them predict outcomes and plan accordingly.

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What's a search problem?

A search problem involves finding the best sequence of actions to reach a goal, given a set of possible states, actions, and constraints.

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What are actions in a search problem?

Actions are the choices an agent can make at each state, influencing the transition to a new state.

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What's a transition model in a search problem?

A transition model describes how actions change the state of the environment. It maps actions to their corresponding outcomes.

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What's a step cost in a search problem?

The step cost is the cost associated with performing a specific action, usually representing time, energy, or resources.

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What is the start state?

The initial state representing the agent's starting point in the search problem.

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What is the goal test?

The goal test defines whether a state has satisfied the search problem's objective.

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What is a solution to a search problem?

A solution is a sequence of actions (a plan) that transforms the start state into a goal state.

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What is a state space?

The state space represents all possible states the environment can be in.

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What is breadth-first search?

A search algorithm that explores all nodes at a given depth first, before moving to the next level, guaranteeing the shortest path to the goal.

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What is depth-first search?

A search algorithm that explores the deepest possible path first, backtracking when a dead end is encountered. Can find solutions quickly but may not be optimal.

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Study Notes

Introduction to Computer Engineering - Artificial Intelligence

  • Course is about Artificial Intelligence (AI)
  • Topics covered include:
    • What is AI?
    • History of AI
    • Capabilities of current AI
    • Rationality in AI
    • Future directions of AI
    • Search algorithms in AI

What is AI?

  • AI is the science of creating machines that can do tasks that typically require human intelligence.
  • Examples include:
    • Image recognition
    • Speech recognition
    • Playing games like chess or Go
    • Machine translation
    • Web searches

What Can People Do That Computers Can't Do?

  • CAPTCHA: A program designed to tell apart humans from computers (e.g., reading distorted text)

Thinking Rationally

  • Rational thinking involves using logic and reason to solve problems.
  • Aristotle's Syllogism: A form of deductive reasoning, for example, "Socrates is a man, all men are mortal, therefore Socrates is mortal."

Acting Rationally

  • Rational behavior aims to achieve the best possible outcome, given the available information and goals.
  • Rational agents make the best possible decisions based on the available data.
  • This often involves uncertainty and dealing with complexity.

Rational Decisions

  • Rationality in AI focuses on the decisions made, not the thought process behind them.
  • Goals are expressed in terms of outcomes (utility).
  • The best decisions maximize expected utility.

A Short History of AI

  • The idea of AI dates back to ancient Greek philosophers.
  • Recent advancements in AI are driven by specific hardware and software.

What Can AI Do? (Examples of current capabilities)

  • Play a game of table tennis
  • Play a game of Jeopardy
  • Drive safely in some circumstances
  • Purchase groceries online
  • Solve complex mathematical problems

Natural Language (AI Applications)

  • AI capabilities for analyzing and generating human language:
    • Speech technologies (e.g., Siri's voice recognition)
    • Text-to-speech synthesis
    • Dialog systems
    • Machine translation
    • Web search (text classification, spam filtering)

Vision (Perception)

  • AI image recognition capabilities.
    • Object and face recognition
    • Scene segmentation
    • Image classification
    • Object tracking and behavior recognition

Robotics

  • Robotics:
    • Robots are used in many applications, including mechanical engineering and AI tasks.
    • The area of robotics is broader than AI, encompassing many areas of engineering.

Game Playing

  • AI has advanced in game playing, surpassing human expertise in complex games like Go.
    • Deep Blue vs. Kasparov matches (1990s)
    • AlphaGo (defeating top human Go players)

DeepMind (Google Deep Learning)

  • DeepMind is a leading AI research organization, focusing on deep learning.

Embedded Applications

  • AI underpins many useful systems, providing support for tasks such as:
    • Scheduling, e.g., airline routing
    • Route planning, e.g., Google Maps
    • Medical diagnostics, e.g., EKG analysis
    • Automated surveillance
    • Web search engines
    • Spam classifiers

Future of AI

  • Progress is accelerating in AI.
  • Benefits are valuable and will grow as AI improves.
  • The development of AI will bring significant changes and opportunities.

What If We Do Succeed?

  • Successful AI development could have profound positive impacts, but potential risks exist

Reasons Not to Worry

  • Concerns relating to AI reaching human intelligence levels are often overstated or not well considered.
  • AI is a tool people control, not the other way around.

So, If That Matters...

  • What are the possible paths for AI evolution (best and worst-case scenarios)?
  • Can AI development be guided to avoid potential risks?
  • Algorithms for AI problem-solving that don't use any prior knowledge.
  • Includes Depth-First, Breadth-First, and Uniform-Cost searches.

Agents that Plan Ahead

  • Planning agents make decisions based on predicted consequences.
  • They need a model of how the world reacts to actions.
  • Agents usually want to find a goal.

Search Problems

  • Search problems involve finding solutions in a state space, using resources such as actions and costs.
  • A solution is a sequence of actions that leads from the start state to the goal state.

Search Gone Wrong

  • Example scenarios/illustrations of search algorithm failures

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