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  2. Biological network - Wikipedia

    en.wikipedia.org/wiki/Biological_network

    A biological network is a method of representing systems as complex sets of binary interactions or relations between various biological entities. [ 1 ] In general, networks or graphs are used to capture relationships between entities or objects. [ 1 ]

  3. Gene regulatory network - Wikipedia

    en.wikipedia.org/wiki/Gene_regulatory_network

    Gene regulatory network. A gene (or genetic) regulatory network (GRN) is a collection of molecular regulators that interact with each other and with other substances in the cell to govern the gene expression levels of mRNA and proteins which, in turn, determine the function of the cell. GRN also play a central role in morphogenesis, the ...

  4. Scale-free network - Wikipedia

    en.wikipedia.org/wiki/Scale-free_network

    Network science. A scale-free network is a network whose degree distribution follows a power law, at least asymptotically. That is, the fraction P (k) of nodes in the network having k connections to other nodes goes for large values of k as. where is a parameter whose value is typically in the range (wherein the second moment (scale parameter ...

  5. Hub (network science) - Wikipedia

    en.wikipedia.org/wiki/Hub_(network_science)

    A hub is a component of a network with a high-degree node. Hubs have a significantly larger number of links in comparison with other nodes in the network. The number of links (degrees) for a hub in a scale-free network is much higher than for the biggest node in a random network, keeping the size N of the network and average degree <k> constant.

  6. Network theory - Wikipedia

    en.wikipedia.org/wiki/Network_theory

    Network science. In mathematics, computer science and network science, network theory is a part of graph theory. It defines networks as graphs where the vertices or edges possess attributes. Network theory analyses these networks over the symmetric relations or asymmetric relations between their (discrete) components.

  7. Biological network inference - Wikipedia

    en.wikipedia.org/wiki/Biological_network_inference

    Biological network inference. Biological network inference is the process of making inferences and predictions about biological networks. [1] By using these networks to analyze patterns in biological systems, such as food-webs, we can visualize the nature and strength of these interactions between species, DNA, proteins, and more. The analysis ...

  8. Default mode network - Wikipedia

    en.wikipedia.org/wiki/Default_mode_network

    The default mode network is an interconnected and anatomically defined [4] set of brain regions. The network can be separated into hubs and subsections: Functional hubs: [25] Information regarding the self Posterior cingulate cortex (PCC) & precuneus: Combines bottom-up (not controlled) attention with information from memory and perception. The ...

  9. Ecological network - Wikipedia

    en.wikipedia.org/wiki/Ecological_network

    Ecological network. An ecological network is a representation of the biotic interactions in an ecosystem, in which species (nodes) are connected by pairwise interactions (links). These interactions can be trophic or symbiotic. Ecological networks are used to describe and compare the structures of real ecosystems, while network models are used ...