compression

Meanings

1. 1
   noun

   The process by which data is compressed.

   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).

2. 2
   noun

   applying pressure

3. 3
   noun

   encoding information while reducing the bandwidth or bits required

4. 4
   noun

   the process or result of becoming smaller or pressed together

5. 5
   noun

   an increase in the density of something

6. 6
   noun

   An increase in density; the act of compressing, or the state of being compressed; compaction.

7. 7
   noun

   The cycle of an internal combustion engine during which the fuel and air mixture is compressed.

8. 8
   noun

   The electronic process by which any sound's gain is automatically controlled.

Etymology

Borrowed from Middle French compression, from Latin compressiō.