|
1
|
s(u)
|
Searched records
|
Number of records searched/viewed (by IP address) in unit
|
|
2
|
d(u)
|
Download frequency
|
Number of downloaded records from unit
|
|
3
|
r(u)
|
Record number
|
Number of records in (period; dataset(s); geographical and/or species unit)
|
|
4
|
S(u)
|
Search events
|
Number of different searches (by IP address) in unit
|
|
5
|
D(u)
|
Download events
|
Number of different downloads from unit
|
|
6
|
N(u)
|
Dataset number
|
Number of datasets in (period, geographical and/or species unit)
|
|
7
|
s(u)/S(u)
|
Search density
|
Average number of searched records per search event
|
|
8
|
d(u)/D(u)
|
Download density
|
Average download frequency per download event
|
|
9
|
d(u)/r(u)
|
Usage impact
|
Download frequency per stored record per unit
|
|
10
|
s(u)/r(u)
|
Interest impact
|
Searched records per stored record per unit
|
|
11
|
d(u)/s(u)
|
Usage ratio
|
Ratio of download frequency to searched records in unit
|
|
12
|
D(u)/S(u)
|
Usage balance
|
Ratio of download events to search events for unit (in %)
|
|
13
|
U(u)/r(u)
|
Usage score
|
Ratio of unique downloaded records (U) to record number (in %)
|
|
14
|
I(u)/r(u)
|
Interest score
|
Ratio of unique searched records (I) to record number (in %)
|
