G PHYSICS
G06 COMPUTING; CALCULATING OR COUNTING
G06F ELECTRIC DIGITAL DATA PROCESSING
G06F16/00 Information retrieval; Database structures therefor; File system structures therefor
G06F16/90 Details of database functions independent of the retrieved data types
G06F16/95 Retrieval from the web
G06F16/953 Querying, e.g. by the use of web search engines
G06F16/9537 Spatial or temporal dependent retrieval, e.g. spatiotemporal queries