Essa é uma revisão anterior do documento!
András Németh and Károly Takács (2007) The Evolution of Altruism in Spatially Structured Populations http://jasss.soc.surrey.ac.uk/10/3/4.html
Abstract: […] Here we examine the evolution of […] altruism with a focus on altruistic teaching. Teaching is modeled as a knowledge transfer which enhances the survival chances of the recipient, but reduces the reproductive efficiency of the provider. […]
for (every living_agent x):
if (random(1000) < innovation_rate) x.knowledge:=1;
if ((x.teacher) && (x.knowledge=1)):
repeat // search for an agent without knowledge
if (proximity_based) y := random_agent_in_proximity
else y := random_agent;
until (y.knowledge = 0)
if (y.learning)
y.knowledge := 1;
x.breeading_chance := x.breeading_chance - costs;
end if
end for
David Hales (2002) Group Reputation Supports Beneficent Norms http://jasss.soc.surrey.ac.uk/5/4/4.html
Abstract: This paper demonstrates the role of group normative reputation in the promotion of an aggression reducing possession norm in an artificial society. […]
LOOP 50 times
Select an agent (A) at random from the population (with replacement)
Activate agent - (agent (A) selects and executes one action):
IF appropriate - receive reputational information from all neighbours
IF current cell contains food then
IF food prepared then {EAT-FOOD}
IF food picked-up then {PREPARE-FOOD}
IF food not-picked-up then {PICKUP-FOOD}
END IF
IF free food item is visible in neighbourhood {MOVE} to food item.
IF a food item can be smelled two cells away then {MOVE} towards it.
IF an agent holds a food item one cell away in neighbourhood then
IF current strategy allows then {ATTACK}
END IF
IF any neighbouring cells are free then select one at random and {MOVE}
No other actions are possible so {PAUSE}
END LOOP
Derek Gatherer (2002) Identifying cases of social contagion using memetic isolation: comparison of the dynamics of a multisociety simulation with an ethnographic data set http://jasss.soc.surrey.ac.uk/5/4/5.html
Abstract: A simulation is presented of a grid of connected societies of reproducing agents. These agents are capable of horizontal and vertical transmission of non-genetic cultural traits (memes). […]
INITIALIZATION:
For each of the 100 cells in the 10-by-10 array:
{
place two Agents in each cell
randomly assign one of four Gene attributes to each individual
randomly assign one of four Meme attributes to each individual
}
ITERATION:
For 100 generations do the following:
{
For each Agent:
{
If Agent Meme attribute = "A" and CultSel = "Y"
{
Double parameters n and o for that agent
}
If Agent Meme attribute = "A" and NatSel = "Y"
{
Double parameter r for that agent
}
If a random number x < r
{
Reproduce Agent
}
If a different random number y < o
{
If same random number y is also < n
{
Transmit Meme to any Agent in any adjacent cell
}
else
{
Transmit Meme to any Agent in same cell
}
}
If a different random number z < m
{
Migrate Agent to adjacent cell
}
}
}
END.