Abstract: The present disclosure relates to a method and system for determining estimated time of arrival. The method includes receiving a service request including a departure location and a destination from a terminal device; determining a route based on the departure location and the destination; determining a first feature associated with the route; determining a transfer learning model; determining a second feature based on the first feature and the transfer learning model; and determining an estimated time of arrival based on the second feature.

Abstract: The present disclosure relates to systems and methods for recommending a route for a request. The system may perform the methods to receive a request from a terminal, wherein the request may include a departure location and a destination; determine a Generative Adversarial Network (GAN) model; determine at least one recommended route that travels from the departure location to the destination based on the GAN model; and transmit the at least one recommended route to be displayed on the terminal in response to the request.

Abstract: A system may include at least one computer-readable storage medium including a set of instructions for providing an on-demand service; and at least one processor in communication with the computer-readable storage medium. When executing the set of instructions, the at least one processor may be directed to: receive a service request from a user terminal; determine at least one route for the service request; and determine an estimated price for the service request based on the at least one route and at least one price estimation model. In some embodiments, to determine the estimated price, the processor may further be directed to: extract one or more characteristics of the service request based on the route; and process the characteristics of the service request using the price estimation model.

Abstract: The present disclosure relates to systems and methods for determining an estimated time of arrival. The systems may perform the methods to operate logical circuits to obtain a departure location associated with a terminal device and information relating to the departure location. The information may include one or more service providers. The system may operate the logical circuits to obtain a trained machine learning model. The system may operate the logical circuits to determine an estimated time of arrival for one of the one or more service providers to arrive at the departure location based on the information and the machine learning model.

Abstract: The present disclosure relates to systems and methods for recommending a route for a request. The system may perform the methods to receive a request from a terminal, wherein the request may include a departure location and a destination; determine a Generative Adversarial Network (GAN) model; determine at least one recommended route that travels from the departure location to the destination based on the GAN model; and transmit the at least one recommended route to be displayed on the terminal in response to the request.

Abstract: The present disclosure relates to a method and system for determining estimated time of arrival. The method includes receiving a service request including a departure location and a destination from a terminal device; determining a route based on the departure location and the destination; determining a first feature associated with the route; determining a transfer learning model; determining a second feature based on the first feature and the transfer learning model; and determining an estimated time of arrival based on the second feature.

Abstract: A directional coupler for a wireless communication device includes a first input port, a first output port, a second input port, a second output port, and a coupled port. The first input port and the first output port are respectively configured to receive and provide a first signal to be transmitted from the wireless communication device. The second input port and the second output port are respectively configured to receive and provide a second signal to be transmitted from the wireless communication device. A coupled port is configured to selectively provide a coupled signal corresponding to each of, in respective modes, the first signal and the second signal.

Abstract: An impedance matching circuit for a wireless communication device includes: a first node that receives a first impedance; a second node that is connected to an antenna having a second impedance; a first variable capacitor that is connected between the first node and a third node; a second variable capacitor that is connected between the third node and a reference potential; a first inductive element that is connected in parallel with the second variable capacitor between the third node and the reference potential; and a third variable capacitor and a second inductive element that are connected in series between the third node and the second node.

Abstract: A circuit including: a die a first substrate and at least one active device; an integrated passive device including a first layer, a second substrate, a second layer and an inductance; and a third layer. The inductance includes vias and is an electrostatic discharge inductance. The vias are implemented in the second substrate. The inductance is implemented on the first layer, the second substrate, and the second layer. A resistivity per unit area of the second substrate is greater than a resistivity per unit area of the first substrate. The third layer is disposed between the die and the integrated passive device. The third layer includes pillars. The pillars respectively connect ends of the inductance to the at least one active device. The die, the integrated passive device and the third layer are disposed relative to each other to form a stack.

Abstract: An impedance matching circuit for a wireless communication device includes: a first node that receives a first impedance; a second node that is connected to an antenna having a second impedance; a first variable capacitor that is connected between the first node and a third node; a second variable capacitor that is connected between the third node and a reference potential; a first inductive element that is connected in parallel with the second variable capacitor between the third node and the reference potential; and a third variable capacitor and a second inductive element that are connected in series between the third node and the second node.