ProxyMix:以代理为基础的混合培训与标签精炼厂,用于无源域调整域名
Yuhe Ding1, Lijun Sheng2, Jian Liang3
1School of Computer Science and Technology, Anhui University, China.
概括
无源无监管域调整 (SFDA) 方法现在可以避免额外的参数和杂的标签. ProxyMix使用了分类器原型和一种新的标签精炼战略,以改善域调整任务中的知识传输.
科学领域:
- 计算机科学 计算机科学
- 机器学习 机器学习
- 人工智能的人工智能
背景情况:
- 无源无监管域调整 (SFDA) 对于没有原始源数据的域之间转移知识至关重要,解决隐私和传输问题.
- 现有的SFDA方法通常需要额外的参数或依赖于杂的伪标签,限制其有效性.
- 在各种应用中,对高效准确的SFDA技术的需求在不断增长.
研究的目的:
- 提出ProxyMix,一种有效的SFDA方法,可以避免额外的参数和杂的伪标签.
- 为了利用预先训练的源代码模型,并加强知识转移到未标记的目标领域.
- 提高伪标签的可靠性,减轻噪音数据的负面影响.
主要方法:
- ProxyMix将分类器权重定义为类原型,并使用最近的邻居构建一个平衡的代理源域.
- 频率加权聚合策略为未标记的目标数据生成可靠的软伪标签.
- 域间和域内混杂调整调整代理和目标域,利用目标特征的内部结构.
主要成果:
- ProxyMix在2D图像和3D点云对象识别基准上实现了最先进的性能.
- 拟议的方法有效地减轻了噪音标签的负面影响,通过标签精炼厂.
- 在无源域调整场景中,ProxyMix展示了卓越的知识传输能力.
结论:
- ProxyMix为无源无监管域名适应提供了一个有效的解决方案,其性能优于现有的方法.
- 这种新方法解决了以前的SFDA技术的关键局限性,提高了模型的稳定性和准确性.
- 对于需要保护隐私的域名调整的真实世界应用程序,ProxyMix显示出显著的前景.
相关概念视频
03:31Labeling DNA Probes
8.2K
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...
8.2K
02:07Improving Translational Accuracy
11.6K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.6K
01:27Associative Learning
439
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...
439
01:19Masking and Demasking Agents
2.5K
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
2.5K
01:27Air-entraining Agents
95
Air-entraining agents improve the durability and workability of concrete in climates with frequent freezing and thawing. These agents prevent cracks by introducing small air bubbles into the mix, creating spaces accommodating water expansion when temperatures drop. The air-entraining agents lower the surface tension of water, forming stable, small air bubbles. This method is more effective than having accidental large voids, as the intentional, smaller, and evenly distributed air voids improve...
95