重视证据深度学习的基本和非基本设置
概括
重新EDL简化了证据深度学习 (EDL) 以更好地估计不确定性. 这种修订后的方法通过调整关键参数和删除有问题的优化术语来提高预测准确性,从而获得更可靠的结果.
科学领域:
- 机器学习 机器学习
- 人工智能的人工智能
- 不确定性定量化 不确定性定量化
背景情况:
- 证据深度学习 (EDL) 是估计预测不确定性的重要方法.
- 通过迪里克莱特度参数,EDL使用主观逻辑来建模类概率分布.
- 目前的EDL实现包含可能阻碍性能的非必要设置.
研究的目的:
- 提出Re-EDL,这是证据深度学习的简化和更有效的变体.
- 解决EDL模型构建和优化过程中的局限性.
- 提高深度学习模型中不确定性估计的可靠性和准确性.
主要方法:
- 重新EDL将先前的重量参数视为可调节的超参数.
- 它直接优化了迪里克莱特PDF的预期.
- 变量最小化和KL-分歧规范化术语已经过时.
主要成果:
- 与标准EDL相比,Re-EDL表现出更好的性能.
- 该方法在广泛的实验中取得了最先进的结果.
- 简化EDL提高了证据比例和数量之间的平衡.
结论:
- 通过改进EDL,Re-EDL为不确定性估计提供了更有效的方法.
- 拟议的简化导致更可靠,更准确的预测.
- 调整后的方法保留了EDL主观逻辑的核心优势.
相关概念视频
Difference from Background: Limit of Detection
7.1K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
The LOD indicates the presence or absence...
7.1K
Introduction to Learning
545
Learning is the process of acquiring knowledge or skills through practice or experience, leading to long-lasting behavioral changes. This acquisition occurs through interaction with the environment and requires practice or experience. For instance, mastering a skill such as surfing requires considerable practice and experience, highlighting the essential role of repeated interactions with the environment in learning.
In contrast to learned behaviors, unlearned behaviors such as crying, sexual...
In contrast to learned behaviors, unlearned behaviors such as crying, sexual...
545
Observational Learning
319
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...
319
Generalization, Discrimination, and Extinction
816
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...
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...
816
Neural Circuits
1.6K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.6K
Extraction: Advanced Methods
547
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
547


