Abstract: An apparatus includes a memory and processor. The memory stores a machine learning algorithm configured to decide whether to use a virtual shopping cart to verify all or a portion of a transaction performed with an algorithmic shopping cart. The processor receives feedback for a decision made by the algorithm, indicating whether the algorithmic and virtual carts match. The processor assigns a reward to the feedback. A first positive reward is assigned when the virtual shopping cart is not used for verification, and the feedback indicates that the carts match. A second positive reward is assigned when the virtual cart is used for verification, and the feedback indicates that the carts do not match. A first negative reward is assigned when the virtual shopping cart is not used for verification, and the feedback indicates that the carts do not match. A second negative reward is assigned when the virtual cart is used for verification, and the feedback indicates that the carts match.

Abstract: An apparatus includes a memory and processor. The memory stores a machine learning algorithm configured to decide between using an algorithmic and a virtual cart to process a transaction. The processor receives feedback for a decision made by the algorithm, indicating whether the algorithmic and virtual carts match. The processor assigns a reward to the feedback. A first positive reward is assigned when the algorithmic cart is selected, and the feedback indicates that the carts match. A second positive reward is assigned when the virtual cart is selected, and the feedback indicates that the carts do not match. A first negative reward is assigned when the algorithmic cart is selected, and the feedback indicates that the carts do not match. A second negative reward is assigned when the virtual cart is selected, and the feedback indicates that the carts match. The processor uses the reward to update the algorithm.

Abstract: An apparatus includes a memory and processor. The memory stores a machine learning algorithm configured to decide between using an algorithmic and a virtual cart to process a transaction. The processor receives feedback for a decision made by the algorithm, indicating whether the algorithmic and virtual carts match. The processor assigns a reward to the feedback. A first positive reward is assigned when the algorithmic cart is selected, and the feedback indicates that the carts match. A second positive reward is assigned when the virtual cart is selected, and the feedback indicates that the carts do not match. A first negative reward is assigned when the algorithmic cart is selected, and the feedback indicates that the carts do not match. A second negative reward is assigned when the virtual cart is selected, and the feedback indicates that the carts match. The processor uses the reward to update the algorithm.

Abstract: An image sensor is positioned such that a field-of-view of the sensor encompasses portion of a beverage machine. The field-of-view includes a first zone associated with operating the beverage machine to dispense the beverage and a second zone in which a cup is placed to receive the beverage. A beverage assignment subsystem receives angled-view images from the image sensor. An event associated with an object entering one or both of the first zone and the second zone is detected. In image(s) associated with a start of the event, it is determined that both a hand of a person enters the first zone and the cup is placed in the second zone. If the cup remained in the second zone for at least a threshold time, the beverage is assigned to the person whose hand entered the first zone.

Abstract: An image sensor is positioned such that a field-of-view of the sensor encompasses portion of a beverage machine. The field-of-view includes a zone associated with operating the beverage machine. A subsystem receives a signal indicating beverage is dispensed and angled-view images from the image sensor. First image(s) associated with a start of beverage being dispensed are determined by detecting a hand of a person entering the zone associated with operating the beverage machine. A first identifier is determined for the person in the first image(s). Second image(s) associated with an end of the beverage being dispensed are determined by detecting a hand of the person exiting the zone. A second identifier is determined for the person in the second image(s). If the first identifier is the same as the second identifier, the beverage is assigned to the person with the first identifier.

Abstract: A system includes a weight sensor and a weight server. The weight sensor generates a signal indicative of a weight of at least one of an item. The weight server detects an event corresponding to a weight change on the weight sensor when a quantity of the item is removed from the weight sensor. The weight server determines the item quantity by calculating a result of dividing the weight change over a unit weight of the item. If the result is within a threshold range from an integer that is closest to the result, the weight server determines that a quantity of the item with the amount of the integer is removed from the weight sensor. If the result is not within the threshold range from the integer, the weight server uses weight change patterns of historically observed signals to determine item quantity that was removed from the weight sensor.

Abstract: A method, a device and a system for monitoring a ride-hailing vehicle are disclosed. An embodiment of the method comprises: transmitting a service request to a ride-hailing service center in response to a triggering condition; and obtaining, by the ride-hailing service center, according to the service request, an image inside and/or outside a vehicle collected by a vehicle terminal, and distributing the image inside and/or outside the vehicle.

Abstract: Systems and methods for generating a load model having composite load components for electric power systems are disclosed which include acquiring state information at a bus of the electric power system, acquiring a training event record, and generating the load model by sequentially executing steps of determining a final load component composition for a predetermined composite load model structure referencing to both the state information and the training event record, and determining a plurality of final load parameters corresponding to the final load component composition and the predetermined load model structure also referencing to both the state information and the training event record.

Abstract: A massage guiding device and a massage guiding method are provided. The massage guiding device includes: a main body (1); and an image recognition unit (2) and a projection unit (3) which are disposed on the main body (1). The image recognition unit (2) is configured to obtain an image of a person being massaged and determine massage information based on the image of the person being massaged. The projection unit (3) is configured to emit visible light according to the massage information as determined by the image recognition unit (2) so as to display the massage information on a body of the person being massaged. The massage guiding device is applicable in a massage process to solve the problems that unprofessional massagers cannot achieve desired massage effect due to lacking of massage information or due to incorrect massage information.

Abstract: Data quality of Phasor Measurement Unit (PMU) is receiving increasing attention as it has been identified as one of the limiting factors that affect many wide-area measurement system (WAMS) based applications. In general, existing PMU calibration methods include offline testing and model based approaches. However, in practice, the effectiveness of both is limited due to the very strong assumptions employed. This invention presents a novel framework for online error detection and calibration of PMU measurement using density-based spatial clustering of applications with noise (DBSCAN) based on much relaxed assumptions. With a new problem formulation, the proposed data mining based methodology is applicable across a wide spectrum of practical conditions and one side-product of it is more accurate transmission line parameters for the energy management system (EMS) database and protective relay settings. Case studies are presented to demonstrate the effectiveness of the proposed method.

Abstract: The present disclosure provides an automatic parameter adjustment system and an automatic parameter adjustment method for a display device, and the display device. The automatic parameter adjustment system includes a body state detector configured to detect a body state parameter of a user, and a controller configured to acquire the body state parameter and adjust a parameter of the display device in accordance with the body state parameter.

Abstract: Data quality of Phasor Measurement Unit (PMU) is receiving increasing attention as it has been identified as one of the limiting factors that affect many wide-area measurement system (WAMS) based applications. In general, existing PMU calibration methods include offline testing and model based approaches. However, in practice, the effectiveness of both is limited due to the very strong assumptions employed. This invention presents a novel framework for online error detection and calibration of PMU measurement using density-based spatial clustering of applications with noise (DBSCAN) based on much relaxed assumptions. With a new problem formulation, the proposed data mining based methodology is applicable across a wide spectrum of practical conditions and one side-product of it is more accurate transmission line parameters for the energy management system (EMS) database and protective relay settings. Case studies are presented to demonstrate the effectiveness of the proposed method.

Abstract: A device and method for managing internet of vehicles are disclosed. The device is applied in a first vehicle or a second vehicle, and when the device is applied in the first vehicle, the device includes: a first receiver configured to receive a traffic request signal for requesting traffic data of the first vehicle from a second vehicle; and a first transmitter connected to the first receiver and configured to send the traffic data corresponding to real-time traffic information acquired by a traveling recording device of the first vehicle to the second vehicle. When the device is applied in the second vehicle, the device includes: a second transmitter configured to send a traffic request signal for requesting traffic data from a second vehicle to the first vehicle; and a second receiver configured to receive traffic data returned from the first vehicle in response to the traffic request signal.

Abstract: A massage guiding device and a massage guiding method are provided. The massage guiding device includes: a main body (1); and an image recognition unit (2) and a projection unit (3) which are disposed on the main body (1). The image recognition unit (2) is configured to obtain an image of a person being massaged and determine massage information based on the image of the person being massaged. The projection unit (3) is configured to emit visible light according to the massage information as determined by the image recognition unit (2) so as to display the massage information on a body of the person being massaged. The massage guiding device is applicable in a massage process to solve the problems that unprofessional massagers cannot achieve desired massage effect due to lacking of massage information or due to incorrect massage information.

Abstract: The present disclosure provides an automatic parameter adjustment system and an automatic parameter adjustment method for a display device, and the display device. The automatic parameter adjustment system includes a body state detector configured to detect a body state parameter of a user, and a controller configured to acquire the body state parameter and adjust a parameter of the display device in accordance with the body state parameter.

Abstract: The present invention provides an anti-peeping device comprising: a plate-shaped substrate; a magnetic field generating device disposed on the plate-shaped substrate for generating a magnetic field; a plurality of light blocking walls deflectably connected to the plate-shaped substrate and configured to be changeable in its deflecting direction and/or deflecting angle in response to a change in a direction and/or an intensity of the magnetic field; a magnetic field control device; and a user input device for receiving an instruction from a user. The magnetic field control device is configured to control the magnetic field generating device to adjust the direction and/or the intensity of the magnetic field based on an instruction received from the user input device, so as to change the deflecting direction and/or the deflecting angle of the light blocking walls. The present invention further comprises a control method for an anti-peeping device.

Abstract: The present invention provides an anti-peeping device comprising: a plate-shaped substrate; a magnetic field generating device disposed on the plate-shaped substrate for generating a magnetic field; a plurality of light blocking walls deflectably connected to the plate-shaped substrate and configured to be changeable in its deflecting direction and/or deflecting angle in response to a change in a direction and/or an intensity of the magnetic field; a magnetic field control device; and a user input device for receiving an instruction from a user. The magnetic field control device is configured to control the magnetic field generating device to adjust the direction and/or the intensity of the magnetic field based on an instruction received from the user input device, so as to change the deflecting direction and/or the deflecting angle of the light blocking walls. The present invention further comprises a control method for an anti-peeping device.

Abstract: The present invention provides an anti-peeping device comprising: a plate-shaped substrate; a magnetic field generating device disposed on the plate-shaped substrate for generating a magnetic field; a plurality of light blocking walls deflectably connected to the plate-shaped substrate and configured to be changeable in its deflecting direction and/or deflecting angle in response to a change in a direction and/or an intensity of the magnetic field; a magnetic field control device; and a user input device for receiving an instruction from a user. The magnetic field control device is configured to control the magnetic field generating device to adjust the direction and/or the intensity of the magnetic field based on an instruction received from the user input device, so as to change the deflecting direction and/or the deflecting angle of the light blocking walls. The present invention further comprises a control method for an anti-peeping device.

Abstract: The present invention provides an anti-peeping device comprising: a plate-shaped substrate; a magnetic field generating device disposed on the plate-shaped substrate for generating a magnetic field; a plurality of light blocking walls deflectably connected to the plate-shaped substrate and configured to be changeable in its deflecting direction and/or deflecting angle in response to a change in a direction and/or an intensity of the magnetic field; a magnetic field control device; and a user input device for receiving an instruction from a user. The magnetic field control device is configured to control the magnetic field generating device to adjust the direction and/or the intensity of the magnetic field based on an instruction received from the user input device, so as to change the deflecting direction and/or the deflecting angle of the light blocking walls. The present invention further comprises a control method for an anti-peeping device.

Abstract: The present invention provides an anti-peeping device comprising: a plate-shaped substrate; a transparent cover plate disposed in parallel with the plate-shaped substrate; and a plurality of light blocking walls between the transparent cover plate and the plate-shaped substrate, the plurality of light blocking walls being disposed in parallel with and spaced apart from one another. A first end of each light blocking wall is deflectably connected to the plate-shaped substrate, and a second end of each light blocking wall opposite to the first end is deflectably connected to the transparent cover plate, such that each light blocking wall is deflected when the transparent cover plate moves relative to the plate-shaped substrate. The present invention further provides a control method for the anti-peeping device.