双重焦点内存对比学习用于主动域适应
Qing Tian1, Junjie Pan2, Yun Yang3
1School of Software, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Wuxi Institute of Technology, Nanjing University of Information Science and Technology, Wuxi, 214000, China.
概括
主动域调整 (ADA) 通过标记目标样本来提高模型性能. 我们的双焦内存对比学习 (DumDA) 方法优化了选定样本的利用,以更好地适应域名.
科学领域:
- 机器学习 机器学习
- 计算机视觉 计算机视觉
- 人工智能的人工智能
背景情况:
- 活动域调整 (ADA) 利用标记的目标样本来提高模型性能.
- 目前的ADA方法专注于样本选择,但未充分利用所选数据.
- 不有效的利用阻碍了捕获目标域结构.
研究的目的:
- 为主动域适应 (DumDA) 引入双焦内存对比学习.
- 为了优化选择的目标域样本的利用.
- 通过改善样本选择和知识传播来提高领域适应性能.
主要方法:
- DumDA 编排内存编码的历史特征,并提供实时批量对比.
- 双重焦点对齐增强了学习和对齐的样本选择.
- 混合活性选择策略确保重建样本的类平衡选择.
主要成果:
- DumDA 在域调整任务中显著提高了性能.
- 该方法证明了对选定的目标域样本的有效利用.
- 在多个标准数据集上的实验结果验证了DumDA的创新.
结论:
- DumDA提供了一种新的方法来优化在ADA中选择样本的利用率.
- 双重焦点记忆对比学习增强了知识传播和目标结构捕获.
- DumDA代表了活跃域适应的重大进步.
相关概念视频
Associative Learning
1.2K
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...
1.2K
Observational Learning
824
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...
824
Cognitive Learning
1.0K
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
1.0K
Purposive Learning
438
E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a...
438
Introduction to Learning
931
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...
931
Generalization, Discrimination, and Extinction
1.3K
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...
1.3K

