Symmetry and asymmetry, in the context of data compression, refer to the time relation between compression and decompression for a given compression algorithm.
If an algorithm takes the same time to compress a data archive as it does to decompress it, it is considered symmetrical. Note that compression and decompression, even for a symmetric algorithm, may not be perfectly symmetric in practice, depending on the devices the data is being copied to and from, and other factors such as latency and the fragmentation on the device.
In turn, if the compression and decompression times of an algorithm are vastly different, it is considered asymmetrical.
and 25 Related for: Data compression symmetry information
Symmetry and asymmetry, in the context of datacompression, refer to the time relation between compression and decompression for a given compression algorithm...
is a widely used transformation technique in signal processing and datacompression. It is used in most digital media, including digital images (such as...
Normalized compression distance (NCD) is a way of measuring the similarity between two objects, be it two documents, two letters, two emails, two music...
Silence compression is an audio processing technique used to effectively encode silent intervals, reducing the amount of storage or bandwidth needed to...
chirp spectrum has symmetry about its centre frequency, so the Fresnell ripples on the spectrum are augmented by the compression process. What is needed...
which interface to one or more multimedia players. Most modern audio compression algorithms are based on modified discrete cosine transform (MDCT) coding...
h_{2}(x)=h_{1}(x)\oplus {\text{hash}}({\text{fingerprint}}(x))} Note that, due to the symmetry of the XOR operation, one can compute h2(x){\displaystyle h_{2}(x)} from...
may be structured as data. Redundant data can be compressed up to an optimal size, which is the theoretical limit of compression. The information available...
information theory which provides the theoretical foundations for lossy datacompressionPages displaying short descriptions of redirect targets Radial distribution...
achieve even higher formats, HDMI 2.1 can use Display Stream Compression (DSC) with a compression ratio of up to 3∶1. Using DSC, formats up to 8K (7680 × 4320)...
genomics in particular, lossless compression, lossy compression, delay-constrained and complexity-constrained compression and communication, network information...
vertical compression of similar types of data in a single column. If the read times for column-stored data is fast enough, consolidated views of the data can...
a temporal compression occurs, resulting in a reversal of the initial excitation waveform being played at the initial source. T-symmetry Memorylessness...
which lacks time reversal symmetry (e.g. the second law of thermodynamics) only from physical laws which have this symmetry. He pointed out that the H-theorem...
of x given the length of x as known/input. Berry paradox Code golf Datacompression Descriptive complexity theory Grammar induction Inductive reasoning...
the form shown above. SSIM satisfies the identity of indiscernibles, and symmetry properties, but not the triangle inequality or non-negativity, and thus...
inventor and entrepreneur. He holds 10+ patents in laser scanning and 3D datacompression/transmission, built (with A. Lebedev and M. Petrov) first textured...
access to other modes. Each mode is separated according to its symmetry. The symmetry of a vibrational mode is deduced from the depolarization ratio ρ...
of liner compression to achieve small-scale, high-energy-density fusion. According to Laberge, Linus could not properly time the compression using the...
structures are compression-only; with the flexible materials, the same is true for tension-only designs. There is a fundamental symmetry in nature between...
function normally even when applied before encryption. Because of the symmetry of the XOR operation, encryption and decryption are exactly the same: C...
crystal structure is characterized by the oxygen atoms forming hexagonal symmetry with near tetrahedral bonding angles. This structure is stable down to...
inches (42.7 mm), and performs within specified velocity, distance, and symmetry limits. Like golf clubs, golf balls are subject to testing and approval...
transforms are most often used for symmetric data, to represent different boundary symmetries, and for real-symmetric data they correspond to different forms of...
vaporize the capsule and cause compression, and then a very short, very powerful pulse near the end of the compression cycle. The goal is to launch shock...
Global Information