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Compression vs Constraint - What's the difference?

compression | constraint | Related terms |

Compression is a related term of constraint.


As nouns the difference between compression and constraint

is that compression is an increase in density; the act of compressing, or the state of being compressed; compaction while constraint is something that constrains.

compression

English

Noun

(en noun)
  • an increase in density; the act of compressing, or the state of being compressed; compaction
  • the cycle of an internal combustion engine during which the fuel and air mixture is compressed
  • (computing) the process by which data is compressed
  • * {{quote-web
  • , year = 2011 , author = Marcelo A. Montemurro & Damián H. Zanette , title = Universal Entropy of Word Ordering Across Linguistic Families , site = PLoS ONE , url = http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0019875 , accessdate = 2012-09-26}}
    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).
  • (music) the electronic process by which any sound's gain is automatically controlled
  • (astronomy) the deviation of a heavenly body from a spherical form
  • Derived terms

    * compression ratio * compression wave * data compression

    Antonyms

    * decompression * rarefaction

    References

    *

    constraint

    Noun

    (en noun)
  • Something that constrains.
  • (mathematics) A condition that a solution to an optimization problem must satisfy.
  • A restriction.
  • Derived terms

    * constraint satisfaction