摘要:
A method is disclosed that includes computing, using at least one uniformly fine-grain data parallel computing unit, a mean-square error regression within a regression clustering algorithm. The mean-square error regression is represented in the form of at least one summation of a vector-vector multiplication. A computer program product and a computer system are also disclosed.
摘要:
A method for combining data values through associative operations. The method includes, with a processor, arranging any number of data values into a plurality of columns according to natural parallelism of the associative operations and reading each column to a register of an individual processor. The processors are directed to combine the data values in the columns in parallel using a first associative operation. The results of the first associative operation for each column are stored in a register of each processor.
摘要:
Methods, and apparatus to cause performance of such methods, for managing memory. The methods include requesting a particular unit of data from a first level of memory. If the particular unit of data is not available from the first level of memory, the methods further include determining whether a free unit of data exists in the first level of memory, evicting a unit of data from the first level of memory if a free unit of data does not exist in the first level of memory, and requesting the particular unit of data from a second level of memory. If the particular unit of data is not available from the second level of memory, the methods further include reading the particular unit of data from a third level of memory. The methods still further include writing the particular unit of data to the first level of memory.
摘要:
Sorting data using a multi-core processing system is disclosed. An unsorted data set is copied from a global memory device to a shared memory device. The global memory device can store data sets for the multi-core processing system. The shared memory device can store unsorted data sets for sorting. The unsorted data set can include a plurality of data elements. The unsorted data set can be sorted into sorted data in parallel on the shared memory device using a cluster of processors of the multi-core processing system. The cluster of processors may include at least as many processors as a number of the data elements in the unsorted data set. The sorted data can be copied from the shared memory device to the global memory device.
摘要:
The present invention discloses a taste-sensing mixture, a taste sensor and a taste-sensing system using the same, which measures the conductivity of a solution and analyzes the measuring result by the principle component analysis to differentiate the taste of the solution. The taste-sensing mixture comprises a carrier and a dispersant dispersed in the carrier. Preferably, the carrier is selected from the group consisting of conductive polymer, salt compound and alkene polymer, while the dispersant is selected from the group consisting of alcohol and gel. The alkene polymer is selected from the group consisting of polyvinyl alcohol, polyethylene oxide and polystyrene, the alcohol is selected from the group consisting of glycerol, methanol and ethanol, the conductive polymer can be polypyrrole or polyaniline, the salt compound can be sodium chloride or sodium potassium, and the gel can be agar.
摘要:
Systems and methods of ranking color correction processes are disclosed. An example method includes processing subimages of an image using a plurality of color correction processes. The method also includes ranking the plurality of results of color correction processes across the subimages. The method also includes applying color correction to the image based on the ranking of the color correction processes.
摘要:
A method is provided for optimizing computer processes executing on a graphics processing unit (GPU) and a central processing unit (CPU). Process data is subdivided into sequentially processed data and parallel processed data. The parallel processed data is subdivided into a plurality of data blocks assigned to a plurality of processing cores of the GPU. The data blocks on the GPU are processed with other data blocks in parallel on the plurality of processing cores. Sequentially processed data is processed on the CPU. Result data processed on the CPU is returned.
摘要:
Methods, database management systems (“DBMS”) and computer-readable media are provided for processing unbounded stream data using a traditional DBMS. Execution of a query that includes a data stream as a data source may be initiated. Tuples may be processed in accordance with the query as the tuples are received through the data stream until an indication is received that execution of the query should cease.
摘要:
A computer-implemented automated decision support system for designing an auction for a given item includes a structure extractor that estimates unknown elements of market structure of the auction based on auction characteristics data extracted from historical auctions for similar items and a bidding model matching the extracted auction characteristics data. The decision support system also includes a bidding behavior predictor that predicts bidding behaviors of bidders in the auction based on the estimated unknown elements of market structure and characteristics of the auction. In addition, the system includes an optimizer that employs an evaluation criterion to generate an evaluation of the auction based on (1) the estimated unknown elements of market structure and (2) the predicted bidding behavior of bidders. A method of providing an automated auction analysis is also described.