Artificial Agent

What is Artificial Agent

Artificial intelligence is defined as study of Logical or rational  agents. A Logical  agent could be anything which makes decisions,take decision,  like a person, firm, machine, or software. It carries out an action with the best outcome after considering past

 and current percepts(agent’s perceptual inputs at a given instance).

The artificial agent perceiving environment through sensors and acting upon that environment through actuators.

• perceiving its environment through sensors and
• acting upon that environment through actuators

Note : Every agent can perceive its own actions (but not always the effects)

To understand the structure of Intelligent Agents, we should be familiar with Architecture and Agent Program. Architecture is the machinery that the agent executes on. It is a device with sensors and actuators, for example : a robotic car, a camera, a PC. Agent program is an implementation of an agent function. An agent function is a map from the percept sequence(history of all that an agent has perceived till date) to an action.

Agent = Architecture + Ag

ent Program

Examples of Agent:-
A software agent has Keystrokes, file contents, received network packages which act as sensors and displays on the screen, files, sent network packets acting as actuators.
A Human agent has eyes, ears, and other organs which act as sensors and hands, legs, mouth, and other body parts acting as actuators.
A Robotic agent has Cameras and infrared range finders which act as sensors and various motors acting as actuators.

Types of Agents

Agents can be grouped into four classes based on their degree of perceived intelligence and capability :

• Simple Reflex Agents
• Model-Based Reflex Agents
• Goal-Based Agents
• Utility-Based AgentsArtificial Intelligence