Abstract: Provided are techniques for identifying and correcting model focus drift during model training. A model is trained using an original dataset with data, and the is classified into clusters. A representation is assigned to each of the clusters. A first visualization dashboard with visualizations is generated, where each visualization represents a first data distribution of an associated cluster using the representation assigned to that cluster. The model is fine-tuned using a fine-tune dataset. A second visualization dashboard is generated by updating each visualization, where each visualization represents a second data distribution of the associated cluster. It is determined that a cluster of the clusters has focus drift based on changes between the first data distribution and the second data distribution. The focus drift is corrected by: adding the data of the cluster to the fine-tune dataset to form a combined dataset and fine-tuning the model using the combined dataset.

Abstract: Embodiments of the present invention provide computer-implemented methods, computer program products and computer systems. Embodiments of the present invention can, in response to receiving performance data associated with records, identify whether the received performance data is associated with long transactions. Embodiments of the present invention can then, in response to determining that the received performance data is associated with long transactions, storing the performance data. Embodiments of the present invention can then classify the stored performance data according to types of transactions the performance data and aggregate the stored performance data based on the classification.

Abstract: An information transmission method and a network device, the network device including a transceiver, a processor, and a non-transitory storage medium storing a computer program for execution by the processor. The computer program includes instructions to receive a first frame through the receiver, where an extended schedule element of the first frame has a field indicating communication between network devices is supported, and where the extended schedule element further has a source association identifier and a destination association identifier, and control the transceiver to transmit information to a first network device when both the first network device and the network device support communication between network devices, where a value of the source association identifier and a value of the destination association identifier are each 0.

Abstract: Embodiments of the present invention provide computer-implemented methods, computer program products and computer systems. Embodiments of the present invention can, in response to receiving performance data associated with records, identify whether the received performance data is associated with long transactions. Embodiments of the present invention can then, in response to determining that the received performance data is associated with long transactions, storing the performance data. Embodiments of the present invention can then classify the stored performance data according to types of transactions the performance data and aggregate the stored performance data based on the classification.

Abstract: The present disclosure relates to a radiation system. The system may include a treatment assembly, an imaging assembly, a first gantry, and a second gantry. The treatment assembly may include a first radiation source configured to deliver a treatment beam and have a treatment region. The first gantry may be configured to support the first radiation source. The imaging assembly may include a second radiation source and a radiation detector. The second radiation source may be configured to deliver an imaging beam and the radiation detector may be configured to detect at least a portion of the imaging beam. The imaging assembly may have an imaging region. The second gantry may be configured to support the second radiation source and the radiation detector, wherein the second radiation source is located within the second gantry. The treatment region and the imaging region at least partially overlap.

Abstract: A calibration device includes a base, a support column coupled to the base and extending in a first direction, and a crossbar coupled to the support column. The crossbar includes a positioning base and a carrier. The positioning base is fixed to the support column. The carrier is coupled to the positioning base and rotatable about a second direction perpendicular to the first direction. The carrier includes a distance sensor and a calibration platform. The calibration platform mounts a depth camera. The carrier is configured to rotate about the second direction to rotate an optical axis of the depth camera in a first calibration plane defined by the first direction and a third direction. The third direction is perpendicular to the first direction and the second direction.

Abstract: A simulation system and a method thereof are disclosed. In the simulation system, a system power transmission model, and analog current time-domain model and digital current time-domain model are connected to obtain power noise generated after a supply current is obtained; jitter time-domain information of each interface connection circuit model under the power noise is obtained based on transmission of a clock signal outputted from a phase lock loop, by a simulation program; next, a voltage step response of a voltage measurement point when a clock terminal of each interface connection circuit model receives an ideal signal, is simulated by the simulation program to generate a first voltage time-domain model; a system waveform is generated based on the jitter time-domain information of each interface connection circuit model under the power noise, the first voltage time-domain model and data transmission, thereby obtaining an eye diagram and time-domain jitter distribution.

Abstract: A floor board, and a method and apparatus for manufacturing same. The floor board (100) comprises a polyurethane-foam board (110). The polyurethane-foam board (110) is made of a polyurethane foam material foamed from a polyurethane foam raw material. The polyurethane-foam board (110) is provided with a plurality of linear members (120) passing though the polyurethane-foam board in a predetermined direction. The plurality of linear members (120) are arranged at intervals. The polyurethane-foam board (110) is foaming-molded by continuous drawing.

Abstract: The present disclosure relates to a radiation system. The system may include a treatment assembly, an imaging assembly, a first gantry, and a second gantry. The treatment assembly may include a first radiation source configured to deliver a treatment beam and have a treatment region. The first gantry may be configured to support the first radiation source. The imaging assembly may include a second radiation source and a radiation detector. The second radiation source may be configured to deliver an imaging beam and the radiation detector may be configured to detect at least a portion of the imaging beam. The imaging assembly may have an imaging region. The second gantry may be configured to support the second radiation source and the radiation detector, wherein the second radiation source is located within the second gantry. The treatment region and the imaging region at least partially overlap.

Abstract: A radiation emission device is provided. The radiation emission device may include a cathode configured to emit an electron beam and an anode configured to rotate on a shaft. The anode may be situated to receive the electron beam from the cathode. The radiation emission device may further include a rotor configured to drive the anode to rotate. The rotor may be mechanically connected to the shaft. The radiation emission device may further include a sleeve configured to support the shaft via at least one bearing. The cathode, the anode, and the rotor may be enclosed in an enclosure that is connected to the sleeve. At least a portion of the sleeve may reside outside the enclosure.

Abstract: The present disclosure relates a multi-leaf collimator. The multi-leaf collimator may include a plurality of leaf modules. Each leaf module of the plurality of leaf modules may include a leaf configured to shield a portion of beams emitted by a radiation source. The leaf may be movable along a guide rail of the multi-leaf collimator. Each leaf module may also include a drive mechanism including a first drive component and a second drive component. The first drive component and the second drive component may be both connected to the leaf. The first drive component and the second drive component may jointly actuate the leaf to move along the guide rail.

Abstract: The present disclosure relates to a collimator. The collimator may include a motor, a transmission unit having a first end and a second end, and a leaf unit having a leaf. The first end of the transmission unit may be connected to the motor and the second end of the transmission unit may be connected to the leaf. The present disclosure also relates to a collimator system. The collimator system may include a leaf module having a leaf, a driving module having a motor configured to drive the leaf, and a processing module to generate a movement profile of the leaf. The movement profile of the leaf may include a first speed during a first stage, a second speed of the leaf during a second stage, and a third speed of the leaf during a third stage.

Abstract: The present invention provides a compound represented by formula (I), or a pharmaceutically acceptable salt or prodrug thereof.

Abstract: A system and method for image-guided radiotherapy are provided. The system may include a treatment assembly and an imaging assembly. The treatment assembly may include a first radiation source configured to deliver a treatment beam. The treatment assembly may have a treatment region relating to an object. The imaging assembly may include a second radiation source and a radiation detector. The second radiation source may be configured to deliver an imaging beam, and the radiation detector may be configured to detect at least a portion of the imaging beam. The imaging assembly may have an imaging region relating to the object. The first radiation source may be rotatable in a first plane, and the second radiation source may be rotatable in a second plane different from the first plane, such that the treatment region and the imaging region at least partially overlap.

Abstract: A radiation emission device is provided. The radiation emission device may include a cathode configured to emit an electron beam and an anode configured to rotate on a shaft. The anode may be situated to receive the electron beam from the cathode. The radiation emission device may further include a rotor configured to drive the anode to rotate. The rotor may be mechanically connected to the shaft. The radiation emission device may further include a sleeve configured to support the shaft via at least one bearing. The cathode, the anode, and the rotor may be enclosed in an enclosure that is connected to the sleeve. At least a portion of the sleeve may reside outside the enclosure.

Abstract: The present disclosure relates to a collimator. The collimator may include a motor, a transmission unit having a first end and a second end, and a leaf unit having a leaf. The first end of the transmission unit may be connected to the motor and the second end of the transmission unit may be connected to the leaf. The present disclosure also relates to a collimator system. The collimator system may include a leaf module having a leaf, a driving module having a motor configured to drive the leaf, and a processing module to generate a movement profile of the leaf. The movement profile of the leaf may include a first speed during a first stage, a second speed of the leaf during a second stage, and a third speed of the leaf during a third stage.

Abstract: A calibration device includes a base, a support column coupled to the base and extending in a first direction, and a crossbar coupled to the support column. The crossbar includes a positioning base and a carrier. The positioning base is fixed to the support column. The carrier is coupled to the positioning base and rotatable about a second direction perpendicular to the first direction. The carrier includes a distance sensor and a calibration platform. The calibration platform mounts a depth camera. The carrier is configured to rotate about the second direction to rotate an optical axis of the depth camera in a first calibration plane defined by the first direction and a third direction. The third direction is perpendicular to the first direction and the second direction.

Abstract: According to an aspect, a system includes a messaging platform configured to facilitate an exchange of messages between user accounts of the messaging platform, and a client application configured to communicate with the messaging platform. The messaging platform is configured to store a UI process flow relating to the on-boarding process, where the UI process flow defines a flow logic for a plurality of nodes representing tasks to be executed by the client application, and each node is defined by one or more generic UI components and configuration data that configures the generic UI components to render UI objects on a user interface of the client application. The messaging platform is configured to modify one or more of the tasks or the flow logic to change at least one aspect of the on-boarding process without requiring the client application to implement a software update.

Abstract: According to an aspect, a system includes a messaging platform configured to facilitate an exchange of messages between user accounts of the messaging platform, and a client application configured to communicate with the messaging platform. The messaging platform is configured to store a UI process flow relating to the on-boarding process, where the UI process flow defines a flow logic for a plurality of nodes representing tasks to be executed by the client application, and each node is defined by one or more generic UI components and configuration data that configures the generic UI components to render UI objects on a user interface of the client application. The messaging platform is configured to modify one or more of the tasks or the flow logic to change at least one aspect of the on-boarding process without requiring the client application to implement a software update.