[특허]Buffering a hierarchical index of multi-dimensional data

[미국특허] Buffering a hierarchical index of multi-dimensional data 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-017/30
출원번호	US-0384648 (1999-08-27)
발명자 / 주소	Ravi Kothuri Siva Ravada Jayant Sharma Jayanta Banerjee Ambuj Singh
출원인 / 주소	Oracle Corporation
대리인 / 주소	Park, Vaughn & Fleming LLP
인용정보	피인용 횟수 : 259 인용 특허 : 5

초록 ▼

Methods are provided for buffering nodes of a hierarchical index (e.g., R-tree, bang file, hB-tree) during operations on multi-dimensional data represented by the index. The methods are particularly suited for query operations, and a different method may be more suitable for one pattern of queries than another. Where queries are distributed in a relatively uniform manner across the domain or dataspace of an index, a node-area buffering method is provided. In this method nodes are cached or buffered in order of their respective areas (e.g., their minimum bounding areas), and a node having a smaller area will be replaced in cache before a node having a larger area. When, however, queries are not uniformly distributed, then a least frequently accessed buffering technique may be applied. According to this method statistics are maintained concerning the frequency with which individual index nodes are accessed. Those accessed less frequently are replaced in cache before those accessed more frequently. Yet another, generic, buffering strategy is provided that is suitable for all patterns of query distribution. In accordance with this method, whenever a node must be removed from cache in order to make room for a newly accessed node, cached nodes are compared to each other to determine which provides the least caching benefit and may therefore be ejected. A comparison may involve three factors-the difference in the nodes' areas, the difference in the frequency with which they have been accessed and the difference between their latest access times. These factors may be weighted to give them more or less effect in relation to each other.

대표청구항 ▼

1. A computer-implemented method of buffering a hierarchical index of multi-dimensional data, wherein said index comprises a set of nodes having associated multi-dimensional data regions, the method comprising:storing a set of multi-dimensional data items on a computer system; maintaining a hierarchical index of said multi-dimensional data items; maintaining a buffer configured to store one or more nodes of the set of nodes comprising the index; storing in said buffer a first node in the set of nodes, wherein said first node has the largest associated data region; and repeating said storing for a next node in the set of nodes having a next largest associated data region than the node just stored in said buffer until one of: every node in the set of nodes has been stored in said buffer; and said node having a next largest associated data region is too large to fit in said buffer.

이 특허에 인용된 특허 (5) 인용/피인용 타임라인 분석

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Naik, Dilip, Optimized copy of virtual machine storage files.
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Zhang, Ning; Chandrasekar, Sivasankaran; Agarwal, Nipun; Idicula, Sam, Optimized streaming evaluation of XML queries.
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Mazzagatti, Jane Campbell; Collins, Timothy William; Rajcan, Steven L., Optimizing the size of an interlocking tree datastore structure for KStore.
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Grider, Gary A.; Poole, Stephen W., Parallel log structured file system collective buffering to achieve a compact representation of scientific and/or dimensional data.
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Idicula, Sam; Agarwal, Nipun; Murthy, Ravi; Sedlar, Eric, Path-caching mechanism to improve performance of path-related operations in a repository.
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Idicula, Sam; Agarwal, Nipun; Murthy, Ravi; Sedlar, Eric, Path-caching mechanism to improve performance of path-related operations in a repository.
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Archer, Charles J.; Blocksome, Michael A.; Cernohous, Bob R.; Ratterman, Joseph D.; Smith, Brian E., Pipelining protocols in misaligned buffer cases.
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Archer, Charles J.; Blocksome, Michael; Cernohous, Bob R.; Ratterman, Joseph D.; Smith, Brian E., Pipelining protocols in misaligned buffer cases.
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Balasa Ramnath, Santhosh K.; Maycock, Ken; McAndrew, Joseph M.; Scullion, Niambh, Pre-caching of relational database management system based on data retrieval patterns.
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Balasa Ramnath, Santhosh K.; Maycock, Ken; McAndrew, Joseph M.; Scullion, Niambh, Pre-caching of relational database management system based on data retrieval patterns.
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Tenorio, Manoel, Pre-qualifying sellers during the matching phase of an electronic commerce transaction.
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Tenorio, Manoel, Pre-qualifying sellers during the matching phase of an electronic commerce transaction.
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Tenorio,Manoel, Pre-qualifying sellers during the matching phase of an electronic commerce transaction.
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Tenorio,Manoel, Protecting content from unauthorized reproduction.
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Tenorio,Manoel, Protecting content from unauthorized reproduction.
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Mattox, Jason; Feathergill, David Allen; Afonso, Delano Xavier; Herman, Jeremy Christopher; Bryant, III, Thomas H., Replication systems and methods for a virtual computing environment.
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Wong, Lyon K. F.; Van Dok, Cornelis K.; DeVorchik, David G.; MacLaurin, Matthew; Miner, Patrice L.; Smith, Walter R.; Fortier, Philip P., Save preview representation of files being created.
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Mazzagatti,Jane Campbell; Claar,Jane Van Keuren, Saving and restoring an interlocking trees datastore.
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Xing,Zhaoyun, Shape-based geometric database and methods and systems for construction and use thereof.
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Garfinkle, Norton; Garfinkle, Richard, Software method for data storage and retrieval.
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Gusmorino, Paul A.; Cummins, Charles; De Vorchik, David G.; Banks, Richard M.; Ivanovic, Relja B.; Lam, Jenny T.; Moore, Jason F., Stack icons representing multiple objects.
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Krishnamurthy, Sanjay M., Storing XML documents efficiently in an RDBMS.
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Mazzagatti, Jane Campbell; Claar, Jane Van Keuren, Storing the repository origin of data inputs within a knowledge store.
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Winter, Stewart James; Westman, Randy Mark; Reid, Murray John; Leikucs, Andrew Alexander; MacCulloch, William Todd, System and method for determining driving factor in a data cube.
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Pugh, Thomas; Aronoff, Eyal M.; Doering, Ross, System and method for developing a cost-effective reorganization plan for data reorganization.
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Banks, Richard M.; Cummins, Charles; De Vorchik, David G.; Gusmorino, Paul A.; Ivanovic, Relja B.; Lam, Jenny T.; Moore, Jason F., System and method for displaying stack icons.
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Kelly, Sean A.; Milne, Roger B., System and method for distributing and accessing files in a distributed storage system.
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Kelly, Sean A.; Milne, Roger B., System and method for distributing and accessing files in a distributed storage system.
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Milne, Roger B.; Kelly, Sean A., System and method for distributing and accessing files in a distributed storage system.
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Kaasten, Shaun A.; Moore, Jason F.; Tubbs, Kenneth M.; Ivanovic, Relja; De Vorchik, David G.; Banks, Richard M.; Miner, Patrice L., System and method for filtering and organizing items based on common elements.
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Aronoff,Eyal M.; Collings,James W., System and method for reconciling transactions between a replication system and a recovered database.
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Aronoff,Eyal M.; Collings,James W., System and method for reconciling transactions between a replication system and a recovered database.
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Mazzagatti, Jane Campbell, System and method for storing and accessing data in an interlocking trees datastore.
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Mazzagatti,Jane Campbell, System and method for storing and accessing data in an interlocking trees datastore.
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Kurtz, James Brian; Hally, Judson Craig; Sheldon, David Joel; DeVorchik, David George; Beam, Tyler Kien; Guzak, Chris J., System and method for user modification of metadata in a shell browser.
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Cushing, David; Cosma, Marius; Warner, Neil; Beffert, Helmut, System and method of multidimensional query results processing.
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Baskins, Douglas L.; Silverstein, Alan, System and method of providing a cache-efficient, hybrid, compressed digital tree with wide dynamic ranges and simple interface requiring no configuration or tuning.
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Baskins, Douglas L.; Silverstein, Alan, System for and method of cache-efficient digital tree with rich pointers.
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Baskins, Douglas L.; Silverstein, Alan, System for and method of data compression in a valueless digital tree representing a bitset.
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Baskins, Douglas L.; Silverstein, Alan, System for and method of efficient, expandable storage and retrieval of small datasets.
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Naik, Dilip C., Systems and methods for compacting a virtual machine file.
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Feathergill, David Allen; Kherson, Dimitry, Systems and methods for data management in a virtual computing environment.
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McMains, Teresa DePaola; Burkhardt, Thomas; Pratt, Robert William, Systems and methods for determining pack allocations.
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McMains, Teresa DePaola; Burkhardt, Thomas; Pratt, Robert William, Systems and methods for determining pack allocations.
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Naik, Dilip Chhotubhai, Systems and methods for instant provisioning of virtual machine files.
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Naik, Dilip Chhotubhai, Systems and methods for instant provisioning of virtual machine files.
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Naik, Dilip Chhotubhai, Systems and methods for instant provisioning of virtual machine files.
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Srinivasan, Jagannathan; Sundara, Seema; Agarwal, Nipun; Hu, Ying; Chorma, Timothy, Systems and methods for managing partitioned indexes that are created and maintained by user-defined indexing schemes.
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Sanli, Tugrul; Yao, Xiaodong, Systems and methods for markdown optimization when inventory pooling level is above pricing level.
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Wu, Xinmin; Yi, Jinxin, Systems and methods for multi-echelon inventory planning with lateral transshipment.
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Feathergill, David Allen, Systems and methods for performing backup operations of virtual machine files.
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Feathergill, David Allen, Systems and methods for performing backup operations of virtual machine files.
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Feathergill, David Allen, Systems and methods for performing backup operations of virtual machine files.
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Chang, Yuan-Chi, Systems and methods for providing autonomous persistent storage systems.
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Aronoff, Eyal; Kalderon, Eyal; Romine, William J., Systems and methods for providing client connection fail-over.
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Romine, William; Doering, Ross, Systems and methods for reorganizing a database object.
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Evans, Christopher A.; Parlin, David R.; Moore, Jason F.; Wong, Lyon K. F.; Ivanovic, Relja B.; Williams, Samuel Thomas; Dart, Scott E.; Hoefnagels, Stephan; McKee, Timothy P., Systems, methods, and user interfaces for storing, searching, navigating, and retrieving electronic information.
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Idicula, Sam; Murthy, Ravi; Chandrasekar, Sivasankaran; Agarwal, Nipun, Technique to estimate the cost of streaming evaluation of XPaths.
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Manikutty,Anand; Krishnaprasad,Muralidhar; Liu,Zhen Hua; Warner,James; Angrish,Rohan; Arora,Vikas; Kotsovolos,Susan; Murthy,Ravi; Lin,Wesley, Techniques for efficient integration of text searching with queries over XML data.
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Warner, James W.; Agrawal, Abhyudaya; Zhang, Hui; Krishnaprasad, Muralidhar; Murthy, Ravi; Liu, Zhen Hua; Agarwal, Nipun; Arora, Vikas; Kotsovolos, Susan M.; Manikutty, Anand; Angrish, Rohan, Techniques for efficiently storing and querying in a relational database, XML documents conforming to schemas that contain cyclic constructs.
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Agarwal, Nipun; Ge, Fei; Chandrasekar, Sivasankaran; Murthy, Ravi; Sedlar, Eric, Techniques for managing hierarchical data with link attributes in a relational database.
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Murthy, Ravi; Sedlar, Eric; Agarwal, Nipun, Techniques for managing multiple hierarchies of data from a single interface.
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Idicula, Sam; Zhang, Ning; Chandrasekar, Sivasankaran; Agarwal, Nipun, Techniques for more efficient generation of XML events from XML data sources.
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Murthy,Ravi; Krishnaprasad,Muralidhar; Manikutty,Anand; Liu,Zhen; Warner,James, Techniques for retaining hierarchical information in mapping between XML documents and relational data.
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Warner, James W.; Liu, Zhen Hua; Krishnaprasad, Muralidhar, Techniques for serialization of instances of the XQuery data model.
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Idicula,Sam; Agarwal,Nipun; Murthy,Ravi, Techniques for supporting application-specific access controls with a separate server.
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Liu,Zhen Hua; Krishnaprasad,Muralidhar, Techniques of using a relational caching framework for efficiently handling XML queries in the mid-tier data caching.
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Tenorio,Manoel; Niven,Vernon D., Third party certification of content in electronic commerce transactions.
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Vishik,Claire S., Usage-based adaptable taxonomy.
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Moore, Jason F.; Sierra, Giampiero M.; Banks, Richard M.; Wong, Lyon King-Fook; Ivanovic, Relja B.; Gusmorino, Paul A.; Beam, Tyler K.; McKee, Timothy P.; Belt, Jeffrey C.; De Vorchik, David G.; Guzak, Chris J.; Low, Aidan; Tubbs, Kenneth M.; Anthony, Colin R.; Chalivendra, Sasanka C.; Watson, Marieke Iwema; Joyce, Gerald Paul; Wade, Alex D.; Betz, Benjamin A.; Kabir, Ahsan S.; Andrews, Donna B.; Miner, Patrice L.; Cutsinger, Paul L., User interface for a file system shell.
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Yoon, Kyoung Ro; Song, Jung Min; Jun, Sung Bae, User preference information structure having multiple hierarchical structure and method for providing multimedia information using the same.
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Yoon, Kyoung Ro; Song, Jung Min; Jun, Sung Bae, User preference information structure having multiple hierarchical structure and method for providing multimedia information using the same.
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Yoon,Kyoung Ro; Song,Jung Min; Jun,Sung Bae, User preference information structure having multiple hierarchical structure and method for providing multimedia information using the same.
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Yoon,Kyoung Ro; Song,Jung Min; Jun,Sung Bae, User preference information structure having multiple hierarchical structure and method for providing multimedia information using the same.
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Chandrasekar, Sivasankaran; Murthy, Ravi; Baby, Thomas; Agarwal, Nipun, Using sibling-count in XML indexes to optimize single-path queries.
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Frank, Steven J.; Reback, Larry, Utilization of a distributed index to provide object memory fabric coherency.
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Hally, J. Craig; Koch, Kenneth A.; Ligameri, Mark R.; Moore, Jason F.; Kaasten, Shaun A.; Banks, Richard M.; Sheldon, Michael; De Vorchik, David G.; Odins-Lucas, Zeke B.; Miner, Patrice L., Virtual address bar user interface control.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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