| Presentation | 1997/12/3 Storing a Large Time Sequenced Data within Disks Hiroshi Sakai, Akihiko Nakase, Shigeru Oyanari, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new method for storing large time sequenced data of several items which are measured at many points and are often default values. The new method uses an index file having a bitmap and item files each of which holds measured data of the corresponding item. An item file is a list of time sequenced data of each point having a filed size in the item file. The bitmap avoids holding a set of default values. The operations are limited to referring data, adding newly measured data, and deleting out-of-date data. Our experiment shows ten times faster data access and three times more effective disk space usage comparing with a conventional relational database management system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Time sequenced data / Data storage / POS data / Data warehouse / Data mining |
| Paper # | DE97-82 |
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| Conference Information | |
| Committee | DE |
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| Conference Date | 1997/12/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Data Engineering (DE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Storing a Large Time Sequenced Data within Disks |
| Sub Title (in English) | |
| Keyword(1) | Time sequenced data |
| Keyword(2) | Data storage |
| Keyword(3) | POS data |
| Keyword(4) | Data warehouse |
| Keyword(5) | Data mining |
| 1st Author's Name | Hiroshi Sakai |
| 1st Author's Affiliation | RWC Partnership Parallel Application Toshiba Laboratory() |
| 2nd Author's Name | Akihiko Nakase |
| 2nd Author's Affiliation | RWC Partnership Parallel Application Toshiba Laboratory |
| 3rd Author's Name | Shigeru Oyanari |
| 3rd Author's Affiliation | RWC Partnership Parallel Application Toshiba Laboratory |
| Date | 1997/12/3 |
| Paper # | DE97-82 |
| Volume (vol) | vol.97 |
| Number (no) | 418 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |