INTELLIGENT AGENTS Properties of intelligent agents autonomy ability

INTELLIGENT AGENTS Properties of intelligent agents ©autonomy - ability to perform tasks and decisions without direct intervention of humans ©social ability, ability to interact with humans and agents ©responsiveness, the ability to perceive the environment and respond to changes

©proactiveness, the ability to take initiative and to exibit goal-directed behavior ©adaptability, the ability of an agent to modify its behavior ©mobility, the ability to change physical location ©veracity, assumption of no false information ©rationality, ability to perform reasonably

Lastnosti - Pattie Maes © opazuje uporabnika © dobiva povratne informacije od uporabnika © dobiva neposredna navodila od uporabnika © pridobiva izkušnje iz okolja © agent in uporabnik komunicirata, nadzorujeta, izvajata opravila © se uči glede na interese, navade in želje uporab.

Lastnosti - Etzioni © avtonomija pri izvajanju opravil: sprejema zahtevne naloge od uporabnika, modificira zahteve, izvaja prilagodljiva opravila, sam začne izvajati opravila © časovna kontinuiteta - stalno deluje © osebnost © zmožnost komunikacije © prilagodljivost uporabniku © mobilnost

“Simple rules” © does it perform typical user-oriented functions (insurance agent) © autonomy - performs actions on its own (yes) - is prediction of actions possible (no) © adapts to each specific user - different reactions for the same error © works all the time, looks around (mobile) © data - information - knowledge

Lastnosti agentov © dokaj splošne definicije - noben sistem nima vseh lastnosti agentov - sistemi imajo več ali manj lastnosti agentov - meja ni točno definirana © “agent” je nekoliko drugačen program © podobne relacije: nestrukturno > strukturno programiranje; modularno > objektno; informacijski sistemi > ekspertni sistemi; podatki > informacije > znanje

Kategorije agentov; Etzioni ©sovozniki v taksiju - svetujejo, kje zaviti ©voznik taksija, ki pelje po navodilih uporabnika ©tajnica oz. asistent, ki sprejme nalogo in jo samostojno izvede

Examples of agents ©Internet - filtering, browsing; 60 agents on http: //ai. ijs. si/mezi/agents. html ©PC - system agents, Office’ 97

Slovenian agents © 1993 IOI, interface VAX/VMS; B. Hribovšek, M. Gams © 1996 EMA, an employment agent for Slovenia on Internet, M. Gams, A. Karalič, M. Grobelnik, M. Drobnič, P. Golob; National Employment Office © 1998 Personal Web. Watcher, D. Mladenič

EMA - EMployment Agent

An Internet Agent

An Agent of Agents

Communication with anybody on the Net ©EMA observes a user communicating with an employment database through a form ©EMA repeats the query ©EMA modifies the query ©EMA “sucks” the database ©EMA reads any Internet employment database

CONCLUSION ©Intelligent agents are among the most prospective new SW breeds; even now world record holders ©Intelligent agents represents a marriage between AI, intelligent systems, and information society