compression

plural compressions

1. countableuncountableAn increase in density; the act of compressing, or the state of being compressed; compaction.
2. countableuncountableautomotiveThe cycle of an internal combustion engine during which the fuel and air mixture is compressed.
3. countableuncountablecomputingThe process by which data is compressed.

   1 more example

   Due to the presence of long-range correlations in language [21], [22] it is not possible to compute accurate measures of the entropy by estimating block probabilities directly. More efficient nonparametric methods that work even in the presence of long-range correlations are based on the property that the entropy of a sequence is a lower bound to any lossless compressed version of it [15]. Thus, in principle, it is possible to estimate the entropy of a sequence by finding its length after being compressed by an optimal algorithm. In our analysis, we used an efficient entropy estimator derived from the Lempel-Ziv compression algorithm that converges to the entropy [19], [23], [24], and shows a robust performance when applied to correlated sequences [25] (see Materials and Methods).

   2011 May 13, Marcelo A. Montemurro, Damián H. Zanette, “Universal Entropy of Word Ordering Across Linguistic Families”, in PLoS ONE, archived from the original on 27 Aug 2011, retrieved 26 Sep 2012

4. countableuncountableentertainmentThe electronic process by which any sound's gain is automatically controlled.
5. countableuncountableastronomyThe deviation of a heavenly body from a spherical form.