Hierarchical Cosine Similarity Entropy for Feature Extraction of Ship-Radiated Noise.
Zhe ChenYa'an LiHongtao LiangJing YuPublished in: Entropy (2018)
Keyphrases
- cosine similarity
- feature extraction
- similarity measure
- document clustering
- similarity function
- vector space
- vector space model
- distance measure
- feature vectors
- k means
- face recognition
- tf idf
- euclidean distance
- image processing
- semantic similarity
- feature space
- principal component analysis
- low level
- pattern recognition
- information retrieval
- image classification
- document collections
- dimensionality reduction
- co occurrence
- high dimensional