Significance of Low Frequent Terms in Patent Classification using IPC Hierarchy.
Akmal Saeed KhattakGerhard HeyerPublished in: IICS (2011)
Keyphrases
- classification accuracy
- decision trees
- image classification
- supervised learning
- classification algorithm
- benchmark datasets
- feature vectors
- automatic classification
- pattern recognition
- support vector
- feature extraction
- feature selection
- information retrieval
- intellectual property
- prior art
- classification systems
- machine learning methods
- hierarchical structure
- neural network
- unsupervised learning
- training set
- machine learning
- decision rules
- cross validation
- classification method
- class labels
- classification models
- feature set
- support vector machine