200 results about "Spatial computing" patented technology

The invention discloses a cloud computing system reliability modeling method considering a common cause fault, and belongs to the technical field of network reliability. The method comprises the steps of determining a state combination of a similar single server of a cloud computing system and performing simplification; calculating an existence probability of the simplified state combination of the similar single server by adopting a fault tree method; determining state combinations of similar servers of the cloud computing system, performing simplification, and calculating an existence probability of each state combination; enumerating state combinations of different servers of the cloud computing system, and calculating an existence probability of each state combination; and according to the state space of the cloud computing system, calculating the system reliability according to a given demand. According to the method, a common cause fault of all virtual machines running in the servers, caused by server faults, is considered, the state space modeling is adopted, and the state space is simplified, so that the problem of state space explosion during system scale increment is solved and the modeling efficiency is improved.

A method of classifying a test subject comprises collecting imaging data for a plurality of training subjects, control subjects and a test subject. An intensity volume of interest (VOI) and a spatial VOI are selected from said imaging data. Training intensity data and spatial data are calculated for the intensity and spatial VOI. A statistical model can then be created based on the training intensity data and training spatial data to provide a universe of subjects. Control intensity data and spatial data are also calculated for the intensity and spatial VOI. A classifier can then be built dividing the universe into at least two regions. The test subject data can then be applied to the classifier to provide a determination of whether said test subject falls within the first region or the second region. The condition can be a neurological disease state such as temporal lobe epilepsy or Alzheimer's dementia.

A method for producing images of a subject containing M spin species using a magnetic resonance imaging (MRI) system includes obtaining N k-space data matrices from N k-space data sets acquired with the MRI system using a pulse sequence with an individual associated echo time. The k-space data matrices each include corresponding data at the same plurality of k-space locations and time stamps are tracked for each k-space location. For each k-space location, a set of linear equations in k-space is solved. The set of linear equations relates corresponding data from the N k-space data matrices, echo times and time stamps to desired calculated k-space data. Calculated data in k-space which is corrected for chemical shift is produced corresponding to each k-space location and aggregated to obtain a k-space calculated data set. The k-space calculated data set is transformed to image space to obtain a corresponding image.

A method and apparatus for bi-direction training in D2D / cellular networks. An embodiment method includes sending training symbols to sense interference from the cellular UEs, calculating an interference subspace from the cellular UE to each of the D2D UEs, calculating an orthogonal projection matrix based on the interference subspace calculated, and iteratively updating receive filters through forward training and transmit beamformers through backward training after the orthogonal projection matrix is calculated to align the D2D UEs. In an embodiment, training symbols are sent to sense interference from the cellular UE.

Various implementations provide for a task assignment method that describes a spatial computing application by providing an abstract task graph (ATaG) wherein the abstract task graph specifies the behavior of the application without reference to the number, placement and connectivity of the nodes performing the application and the tasks are automatically mapped to the network. The ATaG specifies a set of tasks, a set of data objects and a set of channels, including various constraints and preferences on where in the network tasks may be performed, how data is moved between locations and the data required at various locations. Moreover, various implementations provide for a task assignment system which maps the abstract tasks and channels to specific nodes and communication links, either at the time of the construction of the system or throughout the time of its operation.

The invention relates to a computing method of a preventive control measure for short-circuit current in an electric power system, which is applicable to short-circuit current evaluation and preventive control computation in a given operation mode. The method can be divided into two classes according to different types of control measures: (1) preventive control based on device start or stoppage: on the premise that the start or stoppage of a designated device in a network does not affect the system safety stability, forming a preventive control measure space based on device start or stoppage, and computing the effect of the start or stoppage of each device on the sensitivity of the short-circuit current on the basis of the measure space, thereby giving out the preventive control suggests; (2) preventive control based on plant topology analysis: by analyzing the topological connecting relation among the devices, such as circuit breakers, knife switches and the like in a plant, acquiring the main connection mode of the plant, computing control measures for the bus split operation or circuit out-of-series operation, and checking the short-circuit current level after the connection mode is changed; and finally, carrying out safety stability check on the possible preventive control measures based on device start or stoppage and plant topology analysis, thereby obtaining the final feasible measure.

The invention discloses a digital integrated circuit wiring method based on binary coding and terminal equipment. The method comprises the following steps: determining a preset number of first connection modes, calculating a first fitness function value of each first connection mode according to a wiring subspace corresponding to each connection line, and processing each first connection mode according to each first fitness function value to obtain each second connection mode; selecting a first number of third connection modes from a set formed by combining the first connection mode and the second connection mode, and respectively calculating a second fitness function value of each third connection mode; and selecting an optimal connection mode from all the third connection modes accordingto all the second fitness function values obtained through calculation, and connecting standard unit pins according to the optimal connection mode. According to the method, binary coding of uniform grids is adopted, so that on one hand, the problem of uncertain coding length in a non-grid algorithm is avoided, the optimization space range is reduced, and the wiring efficiency is improved.

A network management method and system. The method includes identifying by a computing system, overlapping address spaces between networks. The computing system generates virtual servers associated with the overlapping address spaces. The computing system determines and configures a routing technique for routing the virtual servers to the overlapping address spaces. The computing system installs a copy of management software on each of the virtual servers. The computing system performs a network management installation process. The network management process prepares the virtual servers for managing the overlapping address spaces. The computing system generates and stores a log report associated with the network management installation process.

The invention discloses an image data compression system, comprising an image acquisition device, a compression format converter, a compression buffer memory register, a storage device and a compression ratio controller, wherein, the compression ratio controller comprises a buffer memory space computation module, an image data computation module and a compression ratio control module, and the compression ratio controller automatically adjusts compression ratio by comparing the proportional values of the buffer memory space used by the compressed image data and the compression buffer register with the proportional values of the compressed original image data and the whole original image data, thus avoiding too much compression time consumption due to the problem that the compression ratio is readjusted after the space of the compression buffer memory register is filled in the compressing process. The invention also provides a compression method of the image data.