Class distributions on SOM surfaces for feature extraction and object retrieval.
Jorma LaaksonenMarkus KoskelaErkki OjaPublished in: Neural Networks (2004)
Keyphrases
- object retrieval
- class distribution
- feature extraction
- feature vectors
- image database
- training data
- cost sensitive
- training set
- visual words
- image classification
- training samples
- retrieval accuracy
- test set
- bag of words
- training examples
- text retrieval
- feature space
- unsupervised learning
- image processing
- test data
- face recognition
- retrieval method
- concept drift
- base classifiers
- class labels
- principal component analysis
- image features
- texture features
- object recognition
- unlabeled data
- data streams
- image retrieval
- k means
- human detection