摘要:
An insertion method in a high-dimensional index structure for a content-based image retrieval is disclosed, in which a desired image can be efficiently searched when there is formed a high-dimensional image database. In the present invention, the basic properties of the CIR tree are utilized, and at the same time, a splitting algorithm having a superior search efficiency over the conventional CIR tree is employed. Further, an effective standard for choosing lower nodes is provided, and a re-insertion algorithm capable of re-inserting based on a weighted center is employed, thereby forming an ECIR (Extended CIR) as a high-dimensional index structure supporting efficient retrieval performance. That is, a splitting algorithm for the branch nodes and the terminal nodes are adopted so as to improve the efficiency when carrying out the search and insertion. The re-insertion objects are chose based on the weighted center when the nodes overflow. According to the present invention, the images can be efficiently searched when an image information containing many feature dimensions is formed into a database.
摘要:
A recovery method for a high-dimensional index structure is disclosed, in which a reinsert operation is employed based on ARIES (algorithm for recovery and isolation exploiting semantics) and a page-oriented redo and a logical undo. Further, a recording medium on which a program for carrying out the above method is recorded is disclosed, the program being readable by a computer. The recovery method for a high-dimensional index structure employing a reinsert operation according to the present invention includes the following steps. At a first step, an entry is inserted into a node, a minimum bounding region is adjusted, an overflow is processed, and a log record is stored. At a second step, the log record thus stored is recovered.
摘要:
A bulk loading method, for use in a high-dimensional index structure using some parts of dimensions based on an unbalanced binarization scheme, accelerates an index construction and improves a search performance. For the purpose, the bulk loading method calculates a topology of the index by recognizing information for the index to be constructed using a given data set, splits the given data set into sub-sets of data by repeatedly performing an establishment of a split strategy and a binarization based on the calculated topology of the index, if a leaf node is derived from the sub-sets of data divided through a top-down recursive split process, reflects a minimum bounding region of the leaf node on a higher node, and, if a non-leaf node is generated, repeatedly performing the above processes for another sub-set of data to thereby produce a final root node.
摘要:
Disclosed is a software-defined radio terminal device of the present invention. The software-defined radio terminal device of the present invention is a software-defined radio terminal device configured adaptively according to a radio application, and comprises: a storage unit, a micro processor, and a baseband accelerator, wherein the micro processor delivers from the upper layer to the baseband accelerator a control command for controlling the baseband accelerator and information to be transmitted, reads from the storage unit a code including a radio controller layer delivering the information received from the baseband accelerator to the upper layer, and a baseband driver layer that enables the interface between the radio controller layer and the baseband accelerator and implements the code thereby, and is configured to load from the storage unit to the baseband accelerator at least one function block needed for implementing the radio application, and the function block loaded to the baseband accelerator is configured to include a baseband control function block that controls in real-time the baseband accelerator.
摘要:
The present invention provides compounds of formula I: or a pharmaceutically acceptable salt thereof. Compounds of formula I are inhibitors of Janus kinases and as such are useful for the treatment of various diseases and conditions mediated by said enzymes, such as rheumatoid arthritis, asthma, COPD, ALS, and the like.
摘要:
Provided is a system and method for updating a plurality of the same files consistently. The file update system comprises a first and a second data servers formed as pipe line type network for storing an original file and a duplicate file of the original file respectively, and for updating both the original file and the duplicate file in response to an update request, wherein the first and the second data servers mutually exchange file update information, correct the file update information so as to prevent overlapped update due to a plurality of update requests for the same file, and then update the original file or the duplicate file according to the corrected file update information.
摘要:
A distributed object sharing system and a method thereof are provided. In a file server writing method for storing an object in a RAID (redundant array of inexpensive disks) apparatus having a plurality of storage apparatuses, the file server writing method includes: a first process of, when an object writing command for a specific object is generated during error recovery in an erroneous storage apparatus, checking a recovery state of the object with reference to recovery state information provided from a metadata server; a second process of, when the recovery of the object is completed, performing the object writing command on a normal storage apparatus and a recovery storage apparatus; a third process of, when the recovery of the object is proceeding, receiving the recovery date information from the metadata server again, checking the recovery state of the object again, and determining whether or not to perform the second process; a fourth process of, when the second process is determined not to performed, performing the object writing command on only the normal storage apparatus and receiving the recovery state information from the metadata server again; and a fifth process of checking the recovery state of the object with reference to the received recovery date information and, when the recovery of the object is completed, additionally performing the object writing command on the recovery storage apparatus. Accordingly, it is possible to prevent data loss and perform I/O command during error recovery.
摘要:
Disclosed is a smart antenna software definition radio terminal device. A software definition radio terminal device in a smart antenna software definition radio multi antenna system according to the present invention includes: a storage unit, a microprocessor, and at least one baseband accelerator. The microprocessor is configured to select a smart antenna algorithm; receive a control command from a radio controller layer for delivering a control command to control the baseband accelerator and a radio controller layer on the basis of the selected algorithm; read from the storage unit a code including a baseband driver layer that delivers the received control command to the baseband accelerator, and execute the read code; and load at least one functional block for realizing at least one smart antenna algorithm from the storage unit into the baseband accelerator. According to the terminal device, a terminal having a modem chip of a different structure may execute the same radio application through standard API.
摘要:
The present invention relates to a multi-antenna subsystem for a SDR (software defined radio) capable of supporting a multi-antenna technique to an antenna system using a multi-antenna subsystem. The multi-antenna subsystem of a multi-antenna system includes an algorithm executing unit for carrying out an algorithm for a multi-antenna technique to be required in the multi-antenna system, a frame synchronization unit for a synchronization acquisition, and a control unit for controlling the algorithm executing unit and the frame synchronization. The algorithm executing unit has a plurality of functional blocks and the functional block has state information, which can be referred by other functional blocks, for supporting SDR system.
摘要:
Provided is a method for providing personalized information lifecycle management service based on a personal data management policies. The method includes the steps of a) determining whether there is material change between a system for providing the information lifecycle management service and a first storage device connected to the system through a network; b) identifying the personal data management policies for the connected first storage device; c) identifying user's context information; d) performing data management based on the identified personal data management policies and context information; and e) updating the metadata with the execution result of data management.