针对多中心数据集的可扩展和分布式个性化处理规则
Nan Qiao1,2, Wangcheng Li3, Jingxiao Zhang1,2
1Center for Applied Statistics, Renmin University of China, Beijing 100086, China.
Biometrics
|February 5, 2026
概括
我们开发了一种新的机器学习方法,可以从多个数据源创建个性化治疗规则 (ITR),同时保护患者的隐私. 这种方法通过解决传统元学习技术中的偏见来提高准确性.
科学领域:
- 生物统计学 生物统计学
- 机器学习 机器学习
- 医疗信息学 医疗信息学
背景情况:
- 综合多中心数据对于准确的个性化治疗规则 (ITR) 至关重要.
- 隐私问题阻碍了来自多个来源的敏感患者数据的整合.
- 由于局部估计中的偏差,经典的元学习方法可能不足于最佳.
研究的目的:
- 提出一种新的,保护隐私的方法,从分布式数据中学习最佳个性化处理规则 (ITR).
- 解决经典元学习在处理隐私约束的多中心数据方面的局限性.
主要方法:
- 开发了一种卷积平滑加权支持向量机 (SVM) 以实现最佳ITR学习.
- 利用凸和平滑的损失函数来实现高效的分布式学习.
- 实现了坐标梯度下降算法,以保证线性收.
主要成果:
- 拟议的分布式学习程序确保了最优的统计性能与最小的沟通轮.
- 该方法有效地保护数据隐私,因为它只共享总结统计数据,而不是原始主体级数据.
- 广泛的模拟和败血症治疗案例研究表明了该方法的有效性.
结论:
- 卷积平滑加权的SVM提供了一种有效且保护隐私的解决方案,用于从分布式数据中学习个性化处理规则.
- 这种方法克服了在多中心研究中数据整合的挑战,提高了ITR的准确性和适用性.
- 该方法对个性化医疗有重大影响,特别是在重症监护机构.
相关概念视频
The Aufbau Principle and Hund's Rule
73.0K
To determine the electron configuration for any particular atom, we can build the structures in the order of atomic numbers. Beginning with hydrogen, and continuing across the periods of the periodic table, we add one proton at a time to the nucleus and one electron to the proper subshell until we have described the electron configurations of all the elements. This procedure is called the aufbau principle, from the German word aufbau (“to build up”). Each added electron occupies the...
73.0K
Exceptions to the Octet Rule
37.7K
Many covalent molecules have central atoms that do not have eight electrons in their Lewis structures. These molecules fall into three categories:
37.7K
Lewis Symbols and the Octet Rule
81.1K
Chemical bonds are complex interactions between two or more atoms or ions, which reduce the potential energy of the molecule. Gilbert N. Lewis developed a model called the Lewis model that simplified the depiction of chemical bond formation and provided straightforward explanations for the chemical bonds seen in most common compounds.
81.1K
Impact of Individuals on Individuals
389
Human behavior is intricately shaped by social influences that arise from interactions with others in diverse contexts. These influences not only mold beliefs and attitudes but also drive the regulation of behaviors through both direct communication and observational learning. The study of these processes falls within the domain of social psychology, which seeks to understand how individuals are affected by and affect those around them.Mechanisms of Social InfluenceDirect social influence...
389
The Quotient Rule
75
The quotient rule is a fundamental differentiation technique in calculus used to differentiate functions expressed as a ratio of two differentiable functions. Given a function of the form:Where g(x) and h(x) are both differentiable and h(x) ≠ 0, the derivative of f(x) is given by:Example:The quotient rule is beneficial when differentiating rational functions, trigonometric ratios, and exponential functions. For example, given:applying the quotient rule,This rule is essential in solving...
75
Midpoint Rule
70
Approximating areas under curved boundaries is a common problem in applied mathematics, particularly when an exact calculation is difficult or impractical. One effective numerical method for this purpose is the Midpoint Rule, which provides an estimate of the area under a curve by using rectangular approximations over a specified interval.Description of the Midpoint RuleThe Midpoint Rule begins by dividing the given interval into a number of equal subintervals. For each subinterval, the...
70


