Research on Information Extraction of Technical Documents and Construction of Domain Knowledge Graph.
Huaxuan ZhaoYueling PanFeng YangPublished in: IEEE Access (2020)
Keyphrases
- information extraction
- domain knowledge
- free text
- structured data
- web documents
- text documents
- information retrieval
- unstructured documents
- textual data
- natural language text
- document collections
- unstructured text
- information retrieval systems
- precision and recall
- natural language processing
- random walk
- information extraction systems
- text mining
- document classification
- graph representation
- semi structured
- relevant documents
- relational learning
- question answering
- xml documents
- vector space model
- connected components
- semantic information
- metadata
- web mining
- mutual reinforcement
- named entities
- named entity recognition
- graph theory
- cross document
- weighted graph
- background knowledge
- document clustering
- data extraction
- relation extraction
- document representation
- graph structure
- directed graph
- test collection
- graph model
- domain experts
- prior knowledge
- conditional random fields
- similarity scores
- natural language
- training data
- bipartite graph