Query interface
###Data Filters
The query interface provides the ability to users to add 3 types of filters on results.
- Geo Filter
- Concept Filter
- Date Range Filter
This interface allows multiple filters can be added simultaneously through filter chaining.
(eg) F1 (and) F2 (and) F3 … (and) Fn
Once added the ‘Edit’ button next to each individual can be used to fine-tune the filter definition.
###Geo Filter
F => (R1 or R2 or R3)
###Date range Filter
F => (T>=1980 and T<=1999) or (T>=1919 and T<= 1960)
###Concept Filter
F => (C=‘coal’) or (C=‘oil’) or (C=‘natural-gas’) or (C=‘petroleum’) or (C=‘fossil-fuel’)