from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The ratio comparing signal power to noise power.
- n. The quantity of quality information compared to irrelevant or incorrect information.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the ratio of signal intensity to noise intensity
Sorry, no etymologies found.
Then there was the matter of what engineers call the "signal-to-noise" ratio.
What can be done to raise the signal-to-noise ratio of economics journals?
The signal-to-noise ratio in our comments continues to be very high.
But the automated reliability you get from DTN enables you to transmit data at the beginning and end of a tracking pass, when the signal-to-noise is still low, because any data that are lost due to corruption are automatically retransmitted later.
As the models become more refined, the signal-to-noise ratio in the data becomes very attenuated.
Speaking of Twitter, just today Nic Brisbourne summed-up part of the signal-to-noise filtering challenge:
Any smart filtering/sorting tool may buy you several orders of magnitude ‘improvement’ (think how great ‘feed aggregators’ were when they first appeared), but the signal-to-noise ratio eventually plummets as the noise level skyrockets once again (consider all your unread aggregator feeds).
See my related thoughts on the signal-to-noise problem here.
There's a bad signal-to-noise ratio on Twitter as it is.
The fact that there are not firm boundaries between categories does not rule out their usefulness — it simply means that the information conveyed by racial or ethnic categories has a certain signal-to-noise ratio.
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