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  2. Hamming graph - Wikipedia

    en.wikipedia.org/wiki/Hamming_graph

    H(d,1), which is the singleton graph K 1; H(d,2), which is the hypercube graph Q d. [1] Hamiltonian paths in these graphs form Gray codes. Because Cartesian products of graphs preserve the property of being a unit distance graph, [7] the Hamming graphs H(d,2) and H(d,3) are all unit distance graphs.

  3. Cyclic code - Wikipedia

    en.wikipedia.org/wiki/Cyclic_code

    A negacyclic code is a constacyclic code with λ=-1. [8] A quasi-cyclic code has the property that for some s, any cyclic shift of a codeword by s places is again a codeword. [9] A double circulant code is a quasi-cyclic code of even length with s=2. [9] Quasi-twisted codes and multi-twisted codes are further generalizations of constacyclic ...

  4. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    Matrix identity server [citation needed] 8091: Unofficial: CouchBase web administration [321] 8092: Unofficial: CouchBase API [321] 8096: Unofficial Emby and Jellyfin HTTP port [322] 8100 Unofficial: SaltoSystems - Pro Access Space Service Unofficial: BlueMap, a 3D Minecraft web viewer and mapping tool 8102: Unofficial: SaltoSystems - Used for ...

  5. ASCII - Wikipedia

    en.wikipedia.org/wiki/ASCII

    ASCII (/ ˈ æ s k iː / ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. . ASCII codes represent text in computers, telecommunications equipment, and other devic

  6. Parity bit - Wikipedia

    en.wikipedia.org/wiki/Parity_bit

    1+0+1+1+0 (mod 2) = 1 Bob reports correct transmission after observing expected odd result. This mechanism enables the detection of single bit errors, because if one bit gets flipped due to line noise, there will be an incorrect number of ones in the received data.

  7. Distance matrices in phylogeny - Wikipedia

    en.wikipedia.org/wiki/Distance_matrices_in_phylogeny

    Distance-matrix methods of phylogenetic analysis explicitly rely on a measure of "genetic distance" between the sequences being classified, and therefore they start with a multiple sequence alignment (MSA) as an input. From it, they construct an all-to-all matrix describing the distance between each sequence pair.

  8. Repetition code - Wikipedia

    en.wikipedia.org/wiki/Repetition_code

    Repetition codes are one of the few known codes whose code rate can be automatically adjusted to varying channel capacity, by sending more or less parity information as required to overcome the channel noise, and it is the only such code known for non-erasure channels.

  9. Java version history - Wikipedia

    en.wikipedia.org/wiki/Java_version_history

    The Java language has undergone several changes since JDK 1.0 as well as numerous additions of classes and packages to the standard library.Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to propose and specify additions and changes to the Java platform.