Top-k Queries in Wireless Sensor Networks Leveraging Hierarchical Grid Index.
Jine TangZhenhua WangYunchuan SunChu DuZhangbing ZhouPublished in: IMIS (2014)
Keyphrases
- wireless sensor networks
- query processing
- index structure
- aggregation queries
- inverted index
- sensor networks
- indexing techniques
- database
- unstructured p p systems
- user defined
- range queries
- energy efficient
- query language
- indexing methods
- efficient processing
- candidate set
- energy consumption
- similarity queries
- pre computed
- result set
- node selection
- query evaluation
- query result
- index selection
- inverted lists
- indexing schemes
- multi dimensional
- inverted file
- indexing structure
- user queries
- skyline queries
- web search engines
- posting lists
- approximate answers
- sensor nodes
- response time
- document identifiers
- database systems
- grid computing
- aggregate queries
- indexing scheme
- database queries
- routing algorithm
- data objects
- retrieval systems
- data structure
- information retrieval