数据区域上的分层主动学习与标签比例
Zhipeng Luo1, Qiang Gao2, Yazhou He3
1School of Computing and Artificial Intelligence, Southwest Jiaotong University, Chengdu, Sichuan 611756, China.
IEEE transactions on knowledge and data engineering
|August 15, 2025
概括
这项研究引入了一个新的积极学习框架,使用人类注释区域来构建分类模型. 这种方法显著减少了对数据注释所需的人力资源,在现实应用中被证明是有效的.
科学领域:
- 机器学习 机器学习
- 数据挖掘 数据挖掘
- 计算生物学 计算生物学
背景情况:
- 对分类模型的基于实例的注释是耗时和昂贵的.
- 现有的主动学习方法通常依赖于广泛的实例级标签.
- 在模型培训中,需要有效的方法来减少人类注释的努力.
研究的目的:
- 提出一个新的积极学习框架,从人类注释的区域构建分类模型.
- 通过开发一个层次化的积极学习 (HAL) 框架来应对有限的初始区域的挑战.
- 通过多层次 (森林) 方法增强框架,为更具信息和多样化的地区提供更多信息.
主要方法:
- 开发了一个层次化的主动学习 (HAL) 框架,将数据空间逐渐划分为子区域.
- 利用来自标签比例算法的学习来训练使用区域标签和类比例的模型.
- 实施了多层次 (森林) 解决方案,以建立多个较浅的区域层次结构.
- 评估了各种分类数据集的框架和癌症生存率分析中的真实世界用户研究.
主要成果:
- 基于区域的积极学习方法可以有效地学习高质量的分类器.
- HAL框架显著减少了构建分类模型所需的人类注释工作.
- 在众多分类数据集和结直肠癌存活率分析研究中证明了框架的有效性.
结论:
- 拟议的基于区域的积极学习框架为降低注释成本提供了一个非常有效的解决方案.
- 来自区域的积极学习为传统的基于实例的注释提供了可行的替代方案.
- 层次和多层次的方法提高了从有限的标记区域模型学习的效率和质量.
相关概念视频
01:27Associative Learning
575
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
Classical conditioning, also known...
575
03:31Labeling DNA Probes
8.3K
DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
8.3K
01:12Observational Learning
312
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...
312
01:20Labeling Emotion
237
Emotional labeling is a cognitive process that involves identifying and naming one's emotions, such as anger, fear, happiness, or sadness. It allows individuals to recognize and express their internal emotional states, a critical aspect of emotional regulation and communication. Labeling emotions requires more than mere recognition; it also involves drawing upon memory and contextual cues to understand the current situation and apply a corresponding emotional label. For instance, feeling...
237
01:18Introduction to Learning
532
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...
532