独立于签名随机图的Q-选民模型:均的近似值
1Faculty of Physics, Warsaw University of Technology, Koszykowa 75, PL-00-662 Warsaw, Poland.
Physical review. E
|February 17, 2024
概括
签名网络上的q-voter模型显示了受相互作用类型和代理独立性影响的铁磁过渡. 先进的近似准确地预测了这种过渡,在某些条件下揭示了类似旋转玻璃的行为.
科学领域:
- 统计物理 统计物理
- 网络科学 网络科学
- 社会物理学的社会物理.
背景情况:
- q选民模型是研究论动态的一个基本工具.
- 签名网络带来了复杂性,具有强化和对抗性相互作用.
- 了解复杂网络中的意见形成对于社会和经济建模至关重要.
研究的目的:
- 为了将q-voter模型推广到签名的随机图表上.
- 调查网络标志结构和代理人独立性对意见动态的影响.
- 分析铁磁和旋玻璃状转变的条件.
主要方法:
- 用蒙特卡洛模拟来研究模型.
- 平均场近似和各种对近似用于理论分析.
- 该研究分析了不同相互作用分数的签名网络中的灭障碍.
主要成果:
- 观察到铁磁过渡,其顺序取决于模型参数 (q,r).
- 在很大一部分对抗性相互作用 (r) 中,过渡消失了.
- 对于大r,发现了类似旋转玻璃过渡的数值证据.
结论:
- 平均场近似定性地复制了相位图.
- 一个精细的签名同质对近似提供了与铁磁过渡模拟的定量一致.
- 该研究强调了网络结构和互动类型在意见动态中的重要性.
相关概念视频
Routh-Hurwitz Criterion II
247
In the application of the Routh-Hurwitz criterion, two specific scenarios can arise that complicate stability analysis.
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
The first scenario occurs when a singular zero appears in the first column of the Routh table. This situation creates a division by zero issues. To resolve this, a small positive or negative number, denoted as epsilon (∈), is substituted for the zero. The stability analysis proceeds by assuming a sign for ∈. If ∈ is positive, any sign change in the first...
247
Routh-Hurwitz Criterion I
241
Consider an electrical power grid, where stability is essential to prevent blackouts. The Routh-Hurwitz criterion is a valuable tool for assessing system stability under varying load conditions or faults. By analyzing the closed-loop transfer function, the Routh-Hurwitz criterion helps determine whether the system remains stable.
To apply the Routh-Hurwitz criterion, a Routh table is constructed. The table's rows are labeled with powers of the complex frequency variable s, starting from the...
To apply the Routh-Hurwitz criterion, a Routh table is constructed. The table's rows are labeled with powers of the complex frequency variable s, starting from the...
241
Vector Algebra: Graphical Method
12.1K
Vectors can be multiplied by scalars, added to other vectors, or subtracted from other vectors. The vector sum of two (or more) vectors is called the resultant vector or, for short, the resultant.
We use the laws of geometry to construct resultant vectors, followed by trigonometry to find vector magnitudes and directions. For a geometric construction of the sum of two vectors in a plane, we follow the parallelogram rule. Suppose two vectors are at arbitrary positions. Translate either one of...
We use the laws of geometry to construct resultant vectors, followed by trigonometry to find vector magnitudes and directions. For a geometric construction of the sum of two vectors in a plane, we follow the parallelogram rule. Suppose two vectors are at arbitrary positions. Translate either one of...
12.1K
Central Limit Theorem
14.7K
The central limit theorem, abbreviated as clt, is one of the most powerful and useful ideas in all of statistics. The central limit theorem for sample means says that if you repeatedly draw samples of a given size and calculate their means, and create a histogram of those means, then the resulting histogram will tend to have an approximate normal bell shape. In other words, as sample sizes increase, the distribution of means follows the normal distribution more closely.
The sample size, n, that...
The sample size, n, that...
14.7K
Law of Independent Assortment
55.7K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
55.7K
Probability in Statistics
13.1K
Probability is the likelihood of an event occurring. The term event is defined as a collection of results of a procedure. An event is a simple event when an outcome cannot be divided into simpler parts.
An example of a simple event is a coin toss. The result of a coin toss is either a head or a tail. Here, head and tail are two simple events. These two simple events make up the sample space. Further, the probability of an event occurring falls within the range of 0 to 1. The probability of an...
An example of a simple event is a coin toss. The result of a coin toss is either a head or a tail. Here, head and tail are two simple events. These two simple events make up the sample space. Further, the probability of an event occurring falls within the range of 0 to 1. The probability of an...
13.1K


