Critical class sensitive active learning method for classification of remote sensing imagery

2014 ◽  
Author(s):  
Lian-Zhi Huo ◽  
Zheng Zhang ◽  
Liang Tang
Keyword(s):  
Remote Sensing ◽  
Active Learning ◽  
Learning Method ◽  
Remote Sensing Imagery ◽  
Active Learning Method ◽  
Critical Class

Application of the active learning method to the retrieval of pigment from spectral remote sensing reflectance data

2009 ◽  
Vol 30 (4) ◽  
pp. 1045-1065 ◽  
Author(s):  
H. Taheri Shahraiyni ◽  
S. Bagheri Shouraki ◽  
F. Fell ◽  
M. Schaale ◽  
J. Fischer ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Active Learning ◽  
Learning Method ◽  
Remote Sensing Reflectance ◽  
Active Learning Method ◽  
Reflectance Data

scholarly journals Query-By-Committee Framework Used for Semi-Automatic Sleep Stages Classification

Proceedings ◽  
2019 ◽  
Vol 31 (1) ◽  
pp. 80
Author(s):  
Nela Grimova ◽  
Martin Macas
Keyword(s):  
Active Learning ◽  
Random Sampling ◽  
Feature Space ◽  
Sleep Stages ◽  
Learning Method ◽  
Classification Problems ◽  
Active Learning Method ◽  
Number Of Segments ◽  
Manual Classification

Active learning is very useful for classification problems where it is hard or time-consuming to acquire classes of data in order to create a subset for training a classifier. The classification of over-night polysomnography records to sleep stages is an example of such application because an expert has to annotate a large number of segments of a record. Active learning methods enable us to iteratively select only the most informative instances for the manual classification so the total expert’s effort is reduced. However, the process is able to be insufficiently initialised because of a large dimensionality of polysomnography (PSG) data, so the fast convergence of active learning is at risk. In order to prevent this threat, we have proposed a variant of the query-by-committee active learning scenario which take into account all features of data so it is not necessary to reduce a feature space, but the process is quickly initialised. The proposed method is compared to random sampling and margin uncertainty sampling which is another well-known active learning method. It was shown that, during crucial first iteration of the process, the provided variant of query-by-committee acquired the best results among other strategies in most cases.

Quality-driven Deep Active Learning Method for 3D Brain MRI Segmentation

2021 ◽  
Author(s):  
Zhenxi Zhang ◽  
Jie Li ◽  
Chunna Tian ◽  
Zhusi Zhong ◽  
Zhicheng Jiao ◽  
...  
Keyword(s):  
Active Learning ◽  
Brain Mri ◽  
Learning Method ◽  
Mri Segmentation ◽  
Active Learning Method
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