Wednesday, June 30, 2010

Audio and Agent


Communications media play an important role in influencing changes in society. Television and radio are examples of the most successful media to motivate change. Audio-visual aids can also be a medium for communication. The mention of audio-visual senses are actually based on a target of the media. Audiovisual media rely on hearing and sight of the target audience (the audience). Audio-visual products can become a medium of documentation and can also become a medium of communication. As media documentation of the greater good is to get the facts of an event…..



Table Element Multimedia
Sort base on Sense 
Element Multimedia
Audio Voice 
Visual Text 
Images Static 
Animation 
Video 



AGENT and its Environment
• Agents are all things that can view / interpret / learn (perceiving) environment through sensing devices (sensors) and acting (acting) through the actuator devices (actuators)
• Human agent: eyes, ears and other organs as sensors, arms, legs, mouths and other body parts as actuators
• Robotic agent: an infrared camera and capture as sensors, various actuators driving motor as
• Software as an agent: the pressure on the keyboard, the contents of files and packages on the network as input sensors; display on the screen, writing files and sending network packets as output actuators
Function agent (f) is the mapping of the sequence of perceptions (percept) into action (action)

• agent program running on the physical architecture to produce the agent function (f) agent = architecture + program
 


Agent types

1. goal-based
Certain goals can be achieved by different ways.
- Some better, have a higher benefit.
• Function utility mapped sequence position (a sequence of states) with
real numbers.
• Improve the goals:
- Select a destination from the conflicting goals
- Choosing the right number of purposes has the possibility of success.

2. utility-based
Agent needs to know the situation which
expected.
- It becomes difficult when a long sequence of acts
(Actions) needed to find your destination.
• Typically planning investigated in search and research.
• Major difference: future is taken into account
• Is more flexible since knowledge is represented explicitly and cans be manipulated.
3.learning
All previous agent programs describe

method for selecting actions (actions).
- Yet it does not explain the origin of These programs.
- Learning Mechanisms Can be Used to perform this task.
- Teach Them instead of instructing.
- Advantage is the robustness of the program initially toward

unknown environments.
• Learning element: Introduce Improvements in performance
element.
- Critic provides feedback on performance, based on agents
fixed performance standard.
• Performance elements: selecting actions based on percepts.
- Corresponds to the previous agent programs
• Problem generator: suggests That will of actions leads to new and
Experiences informative.
- Exploration vs.. exploitation
Agent Characteristics
• Autonomy
To reach the objectives in performing their duties independently, agents must have the ability to control every action they do, either out or into the action. And one important thing that supports Autonomy is a matter of intelligence (intelligence) from the agent.
• Intelligence, Reasoning, and Learning
In the concept of intelligence, there are three components that must be owned: the internal knowledge base, reasoning ability, based on the knowledge base that is owned, and learning ability to adapt to a changing environment.
• Mobility and Stationary
Especially for the mobile agent, he must have the ability that is characteristic that he possessed the highest mobility. Opposite of that is the stationary agent.
• Delegation
Agent moves within the framework of duties as instructed by the user. The phenomenon of delegation (Delegation) This is the main characteristic of a program called the agent.
• Reactivity
Other agent characteristics is the ability to quickly adapt to changes in the existing information in an environment (environment).
• Pro activity and Goal-Oriented
Nature of pro activity is virtually a continuation of the reactivity properties. Agents not only required to be able to adapt to environmental changes, but also must take the initiative completion of what steps should be taken and is always oriented to the assigned destination (goal-oriented).
• Communication and Coordination Capability:
Agents must have the ability to communicate with users and other agents as well. Communication problems with the user is entered into the problem of user interfaces and devices, while the problems of communication, coordination, and collaboration with other agents is the central problem of research Multi Agent System (MAS). However to be able to coordinate with other agents in performing their duties, should the standard language to communicate.


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