Intelligent Agents Flashcards
An agent Perceive the environment through_____
sensors (🡪Percepts)
An agent Act upon the environment through
actuators (🡪Actions)
Agent whose actions are based on both built-in knowledge and own experience are called ____
AUTONOMOUS AGENT
Agent = Architecture + Program
Structure of Rational Agents
Task Environment has PEAS
Performance measure
Environment
Actuators
Sensors
Properties of Task Environment
or Types
Fully observable vs. partially observable Deterministic vs. stochastic Episodic vs. sequential Static vs. dynamic Discrete vs. continuous Single agent vs. multi agent
if an agent’s sensors give it access to the complete state of the environment at each point in time.
Fully observable Task Environment
if the next state of the environment is completely determined by the current state and the action executed by the agent.
Deterministic Environment
An agent’s action is divided into atomic episodes.
Episodic
Static environment is unchanged while an agent is deliberating while ______ continuously ask the agent what it wants to do
Dynamic environments:
Fully observable, deterministic, episodic, static, discrete and single-agent.
The simplest environment
Partially observable, stochastic, sequential, dynamic, continuous and multi-agent.
Most real situations are:
Different classes of agents
Simple Reflex agents
Model based Reflex agents
Goal Based agents
Utility Based agents
Learning agents improve their behavior over time
They start with an initially empty knowledge base.
They can operate in initially unknown environments.
A utility function maps a state (or a sequence of states) onto a real number. The agent can also use these numbers to weigh the importance of competing goals.
Utility-based agents take action that maximize their reward.