Shadow: Answering Why-Not Questions on Top-K Spatial Keyword Queries over Moving Objects.
Wang ZhangYanhong LiLihChyun ShuChangyin LuoJianjun LiPublished in: DASFAA (2) (2021)
Keyphrases
- keyword search in relational databases
- keyword queries
- moving objects
- keyword search
- query keywords
- structured data
- xml keyword search
- keywords
- spatial data
- information access
- image sequences
- video sequences
- semi structured
- query evaluation
- database schema
- graph structure
- efficient processing
- search engine
- background subtraction
- semi automatic
- inverted index
- user queries
- data structure