Agent Communication Language

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Agent Communication Language
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Agent Coordination

• Agents communicate in order to achieve better the
  goals of themselves or of the society
• Coordination is a property of a system of agents
  performing some activity in a shared environment

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Coordination
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Knowledge Sharing

• Need KS
• Mutual understanding of knowledge
• The communication of that knowledge
• Knowledge Sharing Effort KSE
• Interlingua Knowledge Interchange Format
• SRKB Shared, Reusable Knowledge Bases
• External Interface KQML

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Interoperating Model
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Ontology

• Ontology provides a set of concepts and terms for
  describing thing in some domain, while a
  knowledge base use those terms to represent what
  is true about some real or hypothetical world.
• Thing Living, NonLiving
• Thing Concrete, Abstract, Process, Object

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KQML

• Knowledge Query Manipulation Language
• KQML was conceived as both a message and a
  message-handling protocol to support runtime
  knowledge sharing among agents
• Three layers
• The content layer
• The message layer
• The communication layer.

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KQML
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KQML Statement

• (ask-one
• sender Agent1
• receiver Agent2
• in-reply-to id1
• reply-with id2
• language Prolog
• ontology NYSE_TICKS
• content (Price IBM)
• )

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KQML in YinYang

• KQMLNode
• String getKeyWord()
• String getContent()
• KQMLParser
• String kqmlPerformative()
• KQMLNode nextNode()
• Boolean hasMoreElements()