compression
nounCA, US, UK /kəmˈpɹɛʃ.ən/ · AU, NZ /kəmˈpɹeʃ.ən/
Etymology Borrowed from Middle French compression, from Latin compressiō, equivalent to compress + -ion.
1
An increase in density; the act of compressing, or the state of being compressed; compaction.
2
Automotive, Transport, Vehicles The cycle of an internal combustion engine during which the fuel and air mixture is compressed.
3
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences 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).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
Entertainment, Lifestyle, Music The electronic process by which any sound's gain is automatically controlled.
5
Astronomy, Natural sciences The deviation of a heavenly body from a spherical form.
- Antonyms
- decompression, rarefaction
- Derived terms
35 terms
age compression, aortocaval compression syndrome, companding, compansion, compressional, compression fracture, compressionless, compression pump, compression ratio, compression release, compression set, compression shorts, compression sock, compression wave, compression wood, cryocompression, data compression, effective compression, electrocompression, globe of compression, microcompression, New York compression, noncompression, overcompression, parallel compression, precompression, recompression, selective compression, supercompression, thermocompression, time compression, time-space compression, uncompression, vasocompression, wavelet compression