Patent application number | Description | Published |
20100161614 | DISTRIBUTED INDEX SYSTEM AND METHOD BASED ON MULTI-LENGTH SIGNATURE FILES - A distributed index system and method based on multi-length signature files are provided. The distributed index system includes a feature vector extracting unit, a high-dimensional index unit, a high-dimensional index managing unit. The feature vector extracting unit extracts N-dimensional feature vectors from multimedia object and identifier. The high-dimensional index unit establishes a tree-based distributed index according to the identifier of the multimedia object and the N-dimensional feature vectors, and determines a signature length by comparing number of leaf nodes of the established distributed index tree and a reference cluster size. The high-dimensional index managing unit generates signatures for each leaf node, on which the determined length is reflected, and stores the generated signatures by matching with the N-dimensional feature vectors. | 06-24-2010 |
20110153677 | APPARATUS AND METHOD FOR MANAGING INDEX INFORMATION OF HIGH-DIMENSIONAL DATA - Disclosed herein are an apparatus and method for managing the index information of high-dimensional data. The apparatus for managing the index information of high-dimensional data includes a plurality of data service devices and a control unit. Each of the plurality of data service devices is configured such that user data and index information used to search the user data are allocated thereto. The control unit is configured to extract high-dimensional index data from a large amount of input data and to allocate the extracted index data to the plurality of data service devices by mapping the extracted index data to the plurality of data service devices as the index information. | 06-23-2011 |
20120158816 | SERVICE PROVIDING METHOD AND DEVICE USING THE SAME - Disclosed are service providing method and device, including: collecting execution state information about a plurality of tasks that constitute at least one service, and are dynamically distributed and arranged over a plurality of nodes; and performing scheduling based on the collected execution state information about the plurality of tasks, wherein each of the plurality of tasks has at least one input source and output source, and a unit of data to be processed for each input source and a data processing operation are defined by a user, and the scheduling is to delete at least a portion of data input into at least one task or to process the at least a portion of input data in at least one duplicate task by referring to the defined unit of data. In particular, the present invention may effectively provide a service of analyzing and processing large stream data in semi-real time. | 06-21-2012 |
20130219405 | APPARATUS AND METHOD FOR MANAGING DATA STREAM DISTRIBUTED PARALLEL PROCESSING SERVICE - Disclosed herein are an apparatus and method for managing a data stream distributed parallel processing service. The apparatus includes a service management unit, a Quality of Service (QoS) monitoring unit, and a scheduling unit. The service management unit registers a plurality of tasks constituting the data stream distributed parallel processing service. The QoS monitoring unit gathers information about the load of the plurality of tasks and information about the load of a plurality of nodes constituting a cluster which provides the data stream distributed parallel processing service. The scheduling unit arranges the plurality of tasks by distributing the plurality of tasks among the plurality of nodes based on the information about the load of the plurality of tasks and the information about the load of the plurality of nodes. | 08-22-2013 |
20150347042 | APPARATUS AND METHOD FOR CONTROLLING MEMORY - An apparatus for controlling memory according to an embodiment of the present invention comprises: a secondary storage device configured to store page-level data; a memory configured to store page information; and a processor configured to perform swap-out to modify the page information and load access target data in an unassigned area of the memory when a page fault for the access target data of the data is caused and capacity of the memory to load the access target data is insufficient. | 12-03-2015 |