Abstract: Embodiments described herein relate to a quantum computing device, methods and apparatus for determining a network parameter of a network of nodes The method comprises manipulating quantum states of qubits of the quantum computing device, the qubits arranged into a first and a second register each in equal superposition, the qubits of the first register conditionally influencing the qubits of the second register using operators representing the network. The method performs a first measurement on the qubits of the first register to estimate a principal eigenvalue, then performs a subsequent second measurement on the qubits in the second register, and uses the results of the second measurement corresponding to the principal eigenvalue to calculate the network parameter.

Abstract: A method and a determining device for determining a set of locations for a number of devices are disclosed. For each distance measure of multiple distance measures, the determining device generates a respective pair of clusters. The determining device determines information metrics. The determining device performs first actions. While a difference between a respective information metric and a further respective information metric is greater than a threshold, the determining device performs second actions, comprising replacing said replaceable pair with said weighted pair, replacing the respective information metric for said replaceable pair with said further respective information metric for said weighted pair, and performing said first actions. The determining device selects the set of locations based on the weighted pair of clusters. A corresponding computer program is also disclosed.

Abstract: A method and a determining device for determining a set of locations for a number of devices are disclosed. For each distance measure of multiple distance measures, the determining device generates a respective pair of clusters. The determining device determines information metrics. The determining device performs first actions. While a difference between a respective information metric and a further respective information metric is greater than a threshold, the determining device performs second actions, comprising replacing said replaceable pair with said weighted pair, replacing the respective information metric for said replaceable pair with said further respective information metric for said weighted pair, and performing said first actions. The determining device selects the set of locations based on the weighted pair of clusters. A corresponding computer program is also disclosed.