Virtual computer characters more accustomed to battling deranged alien monsters are about to take part in a unique social experiment.
A society of virtual 鈥渁gents鈥� 鈥� each with a remarkably realistic personality and the ability to learn and communicate 鈥� is being crafted by scientists from five European research institutes who hope to gain insights into the way human societies evolve.
The project, known as New and Emergent World models Through Individual, Evolutionary and Social Learning 鈥� or NEW-TIES 鈥� brings together experts in artificial intelligence, linguistics, computer science and sociology. It is backed by a consortium consisting of the University of Surrey and Napier University in the UK, Tilberg and Vrije Universities in the Netherlands and E枚tv枚s Lor谩nd University in Hungary.
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Virtual reality show
The experiment will see about 1000 agents live together in a simulated world hosted on a network of 50 computers based at the various institutions involved.
Each agent will be capable of various simple tasks, like moving around and building simple structures, but will also have the ability to communicate and cooperate with its cohabitants. Though simple interaction, the researchers hope to watch these characters create their very own society from scratch.
Every character in the simulated world will need to eat to survive, and will be able to learn from their environment through trial and error 鈥� learning, for example, how to cultivate edible plants with water and sunlight. In addition, characters will be able to reproduce by mating with members the opposite sex and their offspring will inherited a random collection of their parents 鈥済enetic鈥� traits.
Random word generator
Perhaps most importantly, however, by pointing to objects and using randomly generated 鈥渨ords鈥�, characters should be able to conjure up their very own language and communicate with others inside their world.
And this language may bear little resemblance to anything spoken in human societies. 鈥淚t鈥檚 quite possible they will develop a language that we have to interpret,鈥� says Ben Paechter at Napier University in Scotland. 鈥淭hey may discuss things in ways we find difficult to understand.鈥�
However, the ability to communicate could enable these agents to develop complex cultural activities resembling those found in small human societies. 鈥淎 long-term aim is to see if we can get culture to emerge,鈥� Paechter adds. 鈥淭his way, we might learn something about the way human societies evolve.鈥�
Leap of faith
So far, the project scientists have built half of the engine needed to power the virtual world and have begun experimenting with individual agents. They have also adapted a graphical engine used by the popular shoot-em-up game Counter Strike, in order to render their agents visually.
Nigel Gilbert, another of the project researchers at the University of Surrey, says it would be particularly interesting if the agents were to start using non-functional items in a symbolic way, or develop ritual practices. 鈥淥ne can鈥檛 do experiments with real societies,鈥� he told New 杏吧原创. 鈥淎nd, obviously, it鈥檚 a big leap of faith. But it should be better than anything we鈥檝e had before.鈥�
Gilbert adds that a programming interface will be made publicly available, enabling other researchers to carry out similar experiments using the parameters of the NEW-TIES virtual world.
Reality check
But not everyone is convinced that it will yield valuable results. 鈥淲e have real human societies that grow up on their own within computer-generated fantasy worlds,鈥� says Edward Castronova, an expert in online gaming worlds at Indiana University in the US. 鈥淭he most sensible research project, it seems to me, would be to study these societies directly, rather than conjure artificial ones.鈥�
Castronova suggests that the synthetic nature of such a world will undermine its potential. 鈥淚nferences from an entirely artificial system are always going to be weakened by the artificiality,鈥� he told New 杏吧原创. 鈥淭here鈥檚 no reality check.鈥�
Nevertheless, the researchers behind NEW-TIES hope to have seen some spectacular results by the time the project comes to an end in 2007. 鈥淚t鈥檚 incredibly ambitious, and it may be that, at the end of 3 years, we say we need at least another 30,鈥� Gilbert admits. 鈥淏ut it鈥檚 worth a try.鈥�
