Abstract: A cleaning base station includes a base, a first electrode, an infrared module, and a guiding member. The base includes an open chamber accommodating a cleaning robot, and the open chamber includes a chamber sidewall extending in an arc shape. The first electrode is arranged on the chamber sidewall and contacts a second electrode of the cleaning robot. The infrared module is arranged on the chamber sidewall and aligns the cleaning robot. The guiding member is arranged on the chamber sidewall and protrudes from the chamber sidewall, the guiding member is capable of extending into a guiding groove defined on the cleaning robot, the guiding member includes a guiding part, the guiding part is positioned on one end of the guiding member far away from the chamber sidewall, and a cross-sectional size of the guiding part gradually decreases along a direction away from the chamber sidewall.

Abstract: Disclosed are a method and an apparatus for constructing a quantum circuit corresponding to a linear function. The method includes: adding an independent variable of a target linear function on a first qubit; obtaining a second qubit for outputting the target linear function, adding a parametric quantum logic gate acting on the second qubit, and controlling the parametric quantum logic gate by using the first qubit; and determining a parameter value of the parametric quantum logic gate based on the target linear function, to obtain a quantum circuit corresponding to the target linear function.

Abstract: Disclosed are a method and an apparatus for constructing a quantum circuit corresponding to a linear function. The method includes: adding an independent variable of a target linear function on a first qubit; obtaining a second qubit for outputting the target linear function, adding a parametric quantum logic gate acting on the second qubit, and controlling the parametric quantum logic gate by using the first qubit; and determining a parameter value of the parametric quantum logic gate based on the target linear function, to obtain a quantum circuit corresponding to the target linear function.

Abstract: Disclosed is a quantum circuit-based value-at-risk estimation method, device, medium and electronic device, which represents correspondingly sampled value fluctuation ratios and fluctuation ratio probabilities based on the N target qubits, then builds a corresponding quantum circuit based on the target qubits, obtains every target probability whose value fluctuation ratio is less than a fluctuation ratio reference value through the quantum circuit, then determines the target value fluctuation ratio according to the target probability and the probability threshold, and finally calculates the target value-at-risk of the target object according to the target value fluctuation ratio.

Abstract: The embodiments of the application provide an underground garage parking space extraction method and system for high-definition map making.