The Power of Diversity over Large Solution Spaces
研究了有限能力的团队在大型解空间中解决析取任务的条件，发现两人团队优于单人，但创造力不足时团队规模再大也可能失败；解空间复杂度增加时只需适度扩大团队；能力正相关时需更大团队。
We consider a team of agents with limited problem-solving ability facing a disjunctive task over a large solution space. We provide sufficient conditions for the following four statements. First, two heads are better than one: a team of two agents will solve the problem even if neither agent alone would be able to. Second, teaming up does not guarantee success: if the agents are not sufficiently creative, even a team of arbitrary size may fail to solve the problem. Third, defendit numerus: when the agent's problem-solving ability is adversely affected by the complexity of the solution space, the solution of the problem requires only a mild increase in the size of the team. Fourth, groupthink impairs the power of diversity: if agents' abilities are positively correlated, a larger team is necessary to solve the problem. This paper was accepted by Teck Ho, decision analysis.