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相关概念视频

Optimal Foraging00:48

Optimal Foraging

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How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
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Social Exchange Theory01:26

Social Exchange Theory

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As formulated by John Thibaut and Harold Kelley, Social Exchange Theory explains human relationships as economic-like exchanges that maximize rewards and minimize costs. This theory suggests that individuals engage in relationships to gain benefits and reduce burdens, similar to economic transactions. It has been widely applied to various types of relationships, including romantic, professional, and social interactions.Rewards and Costs in RelationshipsRelationship rewards include emotional...
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Social Exchange Theory02:06

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We have discussed why we form relationships, what attracts us to others, and different types of love. But what determines whether we are satisfied with and stay in a relationship? One theory that provides an explanation is social exchange theory. According to social exchange theory, we act as naïve economists in keeping a tally of the ratio of costs and benefits of forming and maintaining a relationship with others (Rusbult & Van Lange, 2003).
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Equity Theory01:26

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Equity theory explains how our sense of fairness influences the dynamics of close relationships. Rooted in social psychology, the theory posits that individuals evaluate fairness by comparing the ratio of their contributions to the rewards they receive. Relationship satisfaction is highest when these ratios are perceived as balanced between partners, promoting mutual reciprocity and a sense of justice.Equity vs. Equality in RelationshipsEquity is distinct from equality. Fairness does not...
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Social Relationships and Well-Being01:30

Social Relationships and Well-Being

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The significance of social relationships in psychological well-being is a well-established area of inquiry within social psychology. Research consistently demonstrates that the presence of meaningful, supportive relationships enhances emotional health, while the absence or deterioration of such connections can contribute to psychological distress. Relationships serve as a foundation for emotional support, identity, and social belonging, all of which are critical to an individual’s overall...
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Voluntary behavior with the intent to help other people is called prosocial behavior. Why do people help other people? Is personal benefit such as feeling good about oneself the only reason people help one another?
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Updated: Jan 16, 2026

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
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对资源分配的福利优化与对等效应.

Zirou Qiu1,2, Daniel J Rosenkrantz2,3, Matthew O Jackson4,5

  • 1Department of Computer Science, University of Virginia, Charlottesville, VA 22904, USA.

PNAS nexus
|September 29, 2025
PubMed
概括
此摘要是机器生成的。

使用同行效应优化资源配置在计算上很困难. 然而,当个人被组合在一起时,就会有有效的解决方案,实现近乎最佳的社会福利.

关键词:
接近算法近似算法优化的优化优化优化.同行影响对同行的影响.资源分配的资源分配.社会福利 社会福利

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科学领域:

  • 计算社会科学 计算社会科学
  • 算法游戏理论 算法游戏理论
  • 运营研究 运营研究

背景情况:

  • 资源分配问题在各种领域是常见的,包括教育,城市规划和社会平台.
  • 同行效应,即个体的偏好受到邻居的影响,使传统的分配模型复杂化.
  • 在这些场景中优化社会福利是具有挑战性的,因为复杂的相互依赖.

研究的目的:

  • 为具有对等效应的位置分配问题开发一个数学框架.
  • 在同行效应下分析福利最大化的计算复杂性.
  • 为固定的人口群体数量的场景提出有效的分配策略.

主要方法:

  • 制定了一个统一的数学框架,用于与同行效应的位置分配问题.
  • 研究了福利最大化对一般同行效应的计算难度.
  • 开发了针对人口群体和网络限制的特定案例的高效算法.

主要成果:

  • 用同行效应最大化福利在计算上是难以解决的,即使是简化的偏好.
  • 当个体被分为固定数量的组时,可以有效计算的分配是可能的.
  • 提出的方法可以为自然偏好结构实现最佳或接近最佳的社会福利.

结论:

  • 具有同行效应的位置分配带来了重大的计算挑战.
  • 根据人口统计数据对个人进行分组,为实现高效和近乎最佳的资源配置提供了一种实际方法.
  • 开发的框架为设计复杂社会系统中的分配策略提供了基础.