Crop information extraction in China based on NDVI characteristic curve.
Peipei XuHua YangTao GaoXiang ZhaoDonghai WuPublished in: IGARSS (2013)
Keyphrases
- information extraction
- natural language processing
- precision and recall
- text mining
- remote sensing
- free text
- b spline
- named entity recognition
- information retrieval
- named entities
- semi structured
- machine learning
- question answering
- conditional random fields
- text processing
- hong kong
- ontology based information extraction
- structured data
- planar curves
- natural language text
- textual data
- machine translation
- multispectral
- endpoints
- web mining
- text summarization
- relational learning
- natural language
- roc curve
- economic development
- open domain
- frequency distribution
- semantic tagging
- remote sensing images
- image data
- relation extraction
- data extraction
- land cover
- text documents
- smooth curves