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  2. Network packet - Wikipedia

    In telecommunications and computer networking, a network packet is a formatted unit of data carried by a packet-switched network. A packet consists of control information and user data; [1] the latter is also known as the payload .

  3. Social network analysis - Wikipedia

    Social network analysis (SNA) is the process of investigating social structures through the use of networks and graph theory. It characterizes networked structures in terms of nodes (individual actors, people, or things within the network) and the ties, edges, or links (relationships or interactions) that connect them.

  4. Network segmentation - Wikipedia

    Network segmentation in computer networking is the act or practice of splitting a computer network into subnetworks, each being a network segment. Advantages of such splitting are primarily for boosting performance and improving security.

  5. Network socket - Wikipedia

    A network socket is a software structure within a network node of a computer network that serves as an endpoint for sending and receiving data across the network. The structure and properties of a socket are defined by an application programming interface (API) for the networking architecture.

  6. Tree (graph theory) - Wikipedia

    Rooted trees, often with additional structure such as ordering of the neighbors at each vertex, are a key data structure in computer science; see tree data structure. In a context where trees typically have a root, a tree without any designated root is called a free tree. A labeled tree is a tree in which each vertex is given a unique label.

  7. Structure of liquids and glasses - Wikipedia

    1) where q is the magnitude of the momentum transfer vector, and ρ is the number density of the material. Like g(r) , the S(q) patterns of liquids and glasses have a number of key features: For mono-atomic systems the S(q=0) limit is related to the isothermal compressibility. Also a rise at the low- q limit indicates the presence of small angle scattering , due to large scale structure or ...

  8. Protein secondary structure - Wikipedia

    The standard hydrogen-bond definition for secondary structure is that of DSSP, which is a purely electrostatic model. It assigns charges of ± q 1 ≈ 0.42 e to the carbonyl carbon and oxygen, respectively, and charges of ± q 2 ≈ 0.20 e to the amide hydrogen and nitrogen, respectively.

  9. Hopfield network - Wikipedia

    1) where the currents of the feature neurons are denoted by x i {\textstyle x_{i}} , and the currents of the memory neurons are denoted by h μ {\displaystyle h_{\mu }} (h {\displaystyle h} stands for hidden neurons). There are no synaptic connections among the feature neurons or the memory neurons. A matrix ξ μ i {\displaystyle \xi _{\mu i}} denotes the strength of synapses from a feature ...