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A weighted network is a network where the ties among nodes have weights assigned to them. A network is a system whose elements are somehow connected. The elements of a system are represented as nodes (also known as actors or vertices) and the connections among interacting elements are known as ties, edges, arcs, or links. The nodes might be neurons, individuals, groups, organisations, airports, or even countries, whereas ties can take the form of friendship, communication, collaboration, alliance, flow, or trade, to name a few.

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  • Grafo ponderado (es)
  • Weighted network (en)
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  • En teoría de grafos, un grafo ponderado, valorado o con pesos es un grafo en el que las aristas tienen un valor o peso asociado.​ En análisis de redes sociales y ciencia de redes, este tipo de grafos sirven para representar redes sociales o redes complejas con relaciones valoradas.​ (es)
  • A weighted network is a network where the ties among nodes have weights assigned to them. A network is a system whose elements are somehow connected. The elements of a system are represented as nodes (also known as actors or vertices) and the connections among interacting elements are known as ties, edges, arcs, or links. The nodes might be neurons, individuals, groups, organisations, airports, or even countries, whereas ties can take the form of friendship, communication, collaboration, alliance, flow, or trade, to name a few. (en)
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  • En teoría de grafos, un grafo ponderado, valorado o con pesos es un grafo en el que las aristas tienen un valor o peso asociado.​ En análisis de redes sociales y ciencia de redes, este tipo de grafos sirven para representar redes sociales o redes complejas con relaciones valoradas.​ (es)
  • A weighted network is a network where the ties among nodes have weights assigned to them. A network is a system whose elements are somehow connected. The elements of a system are represented as nodes (also known as actors or vertices) and the connections among interacting elements are known as ties, edges, arcs, or links. The nodes might be neurons, individuals, groups, organisations, airports, or even countries, whereas ties can take the form of friendship, communication, collaboration, alliance, flow, or trade, to name a few. In a number of real-world networks, not all ties in a network have the same capacity. In fact, ties are often associated with weights that differentiate them in terms of their strength, intensity, or capacity On the one hand, Mark Granovetter (1973) argued that the strength of social relationships in social networks is a function of their duration, emotional intensity, intimacy, and exchange of services. On the other, for non-social networks, weights often refer to the function performed by ties, e.g., the carbon flow (mg/m2/day) between species in food webs, the number of synapses and gap junctions in neural networks, or the amount of traffic flowing along connections in transportation networks. By recording the strength of ties, a weighted network can be created (also known as a valued network). Weighted networks are also widely used in genomic and systems biologic applications. For example, weighted gene co-expression network analysis (WGCNA) is often used for constructing a weighted network among genes (or gene products) based on gene expression (e.g. microarray) data. More generally, weighted correlation networks can be defined by soft-thresholding the pairwise correlations among variables (e.g. gene measurements). (en)
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