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Constraints and Statical Determinacy01:26

Constraints and Statical Determinacy

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In structural engineering, the equilibrium of a system is not only determined by its equations of equilibrium but also with the help of constraints. Constraints refer to restrictions on the motion of a system. The proper combinations of constraints can minimize the total number of constraints needed to maintain a system in mechanical equilibrium. When this happens, the system is said to be statically determinate. For such systems, the unknown reaction supports can be estimated using equilibrium...
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Generalization, Discrimination, and Extinction01:24

Generalization, Discrimination, and Extinction

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Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained.
Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...
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Woodward–Hoffmann Selection Rules and Microscopic Reversibility01:34

Woodward–Hoffmann Selection Rules and Microscopic Reversibility

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Electrocyclic reactions, cycloadditions, and sigmatropic rearrangements are concerted pericyclic reactions that proceed via a cyclic transition state. These reactions are stereospecific and regioselective. The stereochemistry of the products depends on the symmetry characteristics of the interacting orbitals and the reaction conditions. Accordingly, pericyclic reactions are classified as either symmetry-allowed or symmetry-forbidden. Woodward and Hoffmann presented the selection criteria for...
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Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

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Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
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Case Studies

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There are many research methods available to psychologists in their efforts to understand, describe, and explain behavior and the cognitive and biological processes that underlie it.
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Propagation of Uncertainty from Systematic Error01:10

Propagation of Uncertainty from Systematic Error

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The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
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相关实验视频

Updated: Jun 5, 2025

Setting Limits on Supersymmetry Using Simplified Models
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在模型检查中进行局部概括的全球指导.

Hari Govind Vediramana Krishnan1, YuTing Chen2, Sharon Shoham3

  • 1Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON Canada.

Formal methods in system design
|December 16, 2024
PubMed
概括
此摘要是机器生成的。

我们将全球指导引入IC3式模型中,检查无限状态系统. 这种方法通过减轻局部推理的局限性,显著提高验证的有效性,优于现有的方法.

关键词:
自动程序验证自动程序验证有限制的喇条款.插值 插值 插值 插值 插值 插值模型检查 模型检查

更多相关视频

The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
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The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

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Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation
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Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation

Published on: August 23, 2017

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相关实验视频

Last Updated: Jun 5, 2025

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

8.5K
The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
05:15

The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

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Using a Split-belt Treadmill to Evaluate Generalization of Human Locomotor Adaptation
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科学领域:

  • 正式的方法 正式的方法
  • 计算机科学 计算机科学
  • 软件工程 软件工程 软件工程

背景情况:

  • 基于SMT的模型检查器,特别是IC3式算法,是验证无限状态系统的领先技术.
  • 这些方法通过在过渡关系上使用局部推理推断全球归纳不变量,并通过SMT程序 (如插值) 增强SMT程序.
  • 然而,依赖SMT解决器启发式可以损害模型检查稳定性.

研究的目的:

  • 系统地解决基于SMT的模型检查中局部推理的局限性.
  • 将明确的全球指导引入IC3式算法的本地推理.
  • 提高无限状态系统验证的稳定性和有效性.

主要方法:

  • 将SMT-IC3范式扩展为全球指导的三个新规则.
  • 这些规则的实例化用于线性整数算术和线性理数算术.
  • 实现了增强的算法,GSpacer,在Z3内的Spacer解决器之上.

主要成果:

  • 与最初的Spacer算法相比,GSpacer显示了显著提高的有效性.
  • 增强的方法也超过了单纯的全球推理方法的性能.
  • GSpacer对插值不敏感,这是影响SMT解决器性能的常见因素.

结论:

  • 明确的全球指导是克服基于SMT的模型检查局部局限性的系统和有效方法.
  • GSpacer为验证无限状态系统提供了更强大,更有效的解决方案.
  • 拟议的方法通过减少对SMT解决器特定启发式的依赖来提高验证稳定性和性能.