Efficiency

[cutty]

Hi Folks,

I would like to change the measure for the efficiency of the stations. It may not be appropriate to calculate only one numerical value, but rather to introduce different possibly even competing measures for the efficiency of the systems.

The first value could indicate how many of the transmitted signals are involved in the calculated strikes. The second value would be distance dependent and indicates how many impacts with a certain distance to the own detector the station was involved.

The current combination of these values (thate what we are doing now) seems to be not usefull for adjusting a detektor.

Any ideas for further efficiency measures?

/Egon

Just brainstorming:  

Suppose we explore this, for each unique station, as opposed to, or in addition to, station's relative "Network / Region" performance. This suggestion is for 'Typical" installations.  It's my belief that a second group might be considered, for example, those stat1ons that are 'purposefully' employed across regions or oceans. However they, I believe, should be
"qualified" on Efficiency and Effectivity overall before being placed into that group. And 'disqualified' if performance degrades. If makes little sense to me to have a station with a noisy environment attempting to serve 'cross region' or ocean, for example.

We define:
Goal: detect maximum number of strokes accurately with minimum number of signals
Efficiency: Ability to accomplish something with the least amount of time and effort.
Effectivity: Actual production of the intended result.

Efficiency = Strokes Detected / Signals Sent 
Effectivity = Strokes Detected / Signals Sent - Strokes Detected 

examples:
Station:  200 strokes with 1000 signals sent:
Efficiency = 200/1000=20%
Effectivity = 200 / (1000-200) 800 = 25%

Station: 200 stokes with 500 signals sent:
Efficiency = 200/500=40%
Effectivity = 200 / (500-200) 300=67%

Station: 800 stokes with 2500 signals sent:
Efficiency = 800/2500=32%
Effectivity = 800 / (2500-800) 1700=47%


That is, a station which sends a lot of signals, but few strikes is not very efficient.
For Effectivity; some of the 'signals' sent ARE strikes, and they are removed from the Total Signals, then strikes compared to 'remaining' (unused" signals.

Mike