学习可信的模型
Jiaxuan Wang1, Jeeheh Oh1, Haozhu Wang1
1University of Michigan.
概括
本研究引入了专家预估 (EYE) 罚款,以提高模型的解释性和可信性. 使用EYE的模型与专家知识和临床因素显著一致,增强对AI预测的信任.
科学领域:
- 机器学习 机器学习
- 人工智能的人工智能
- 生物统计学 生物统计学
背景情况:
- 模型的解释性至关重要,但如果模型的推理与既有知识相矛盾,则模型可能缺乏可信性.
- 可解释模型并不总是可信的,在高风险的应用中带来了挑战.
- 定义和实现模型的可信度与准确性是持续的研究问题.
研究的目的:
- 在线性设置中正式定义和解决模型可信度.
- 开发学习准确和可信的模型的技术.
- 引入一种新的规范化处罚,将专家知识纳入其中.
主要方法:
- 建议专家预估估计 (EYE) 正规化处罚.
- 纳入了有关共变量结果关系的专家知识.
- 与现有的规范化技术进行理论和实证比较.
- 对合成和现实数据集进行评估的方法,包括患者风险分层.
主要成果:
- 与其他方法相比,经过EYE罚款训练的模型显示出明显更高的可信度.
- EYE罚款有效地将专家知识整合到模型学习过程中.
- 应用于患者风险分层,EYE导致了顶级特征和已知的临床风险因素之间高度重叠的模型.
- 实现了良好的预测性能,同时提高了可信度.
结论:
- 在不牺牲预测准确性的情况下,EYE罚款提供了一种可行的方法来提高模型的可信度.
- 这种方法在需要信任和与领域专业知识保持一致的领域特别有价值,例如医疗保健.
- 这些发现支持使用专家知识整合来构建更可靠的AI系统.
相关概念视频
Modeling and Similitude
335
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
335
Models, Theories, and Laws
7.0K
Scientists frequently use models to help them comprehend a specific collection of phenomena. In physics, a model is a condensed version of a physical system that is too complex to study thoroughly. One such example is the light wave model; unlike water waves, light waves are typically invisible to us. Nonetheless, it is helpful to think of light as being composed of waves, since investigations show that light behaves like water waves. Since it is impossible to visually see what is genuinely...
7.0K
Observational Learning
317
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
317
Typical Model Studies
443
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
443
Clearance Models: Physiological Models
124
Drug clearance is a critical pharmacokinetic process involving the irreversible removal of drugs from the body through various organs over a specified time period. Physiological models are indispensable in determining organ-specific clearance, defined by the proportion of the drug eliminated per unit of time from the organ's blood volume.
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's...
The organ's clearance rate depends on the blood flow to the organ and the extraction ratio (E). The extraction ratio describes the organ's...
124
Steps in the Modeling Process
323
Albert Bandura's theory of observational learning identifies four critical processes: attention, retention, motor reproduction, and reinforcement or motivation.
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
Attention is the first necessary component for observational learning. It involves focusing on what the model is doing and saying. For example, if you decide to take a drawing class to enhance your skills, you need to pay close attention to the instructor's words and hand movements. The characteristics of the model significantly...
323


