標(biāo)題: Titlebook: Data Warehousing and Knowledge Discovery; Second International Yahiko Kambayashi,Mukesh Mohania,A. Min Tjoa Conference proceedings 2000 Spr [打印本頁] 作者: 鏟除 時間: 2025-3-21 19:02
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書目名稱Data Warehousing and Knowledge Discovery網(wǎng)絡(luò)公開度學(xué)科排名
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書目名稱Data Warehousing and Knowledge Discovery讀者反饋
書目名稱Data Warehousing and Knowledge Discovery讀者反饋學(xué)科排名
作者: 水汽 時間: 2025-3-21 20:52
Applying Vertical Fragmentation Techniques in Logical Design of Multidimensional Databasess consists of materializing redundant aggregates called views. In this paper we investigate the problem of vertical fragmentation of views aimed at minimizing the workload response time. Each view includes several measures which not necessarily are always requested together; thus, the system perform作者: 道學(xué)氣 時間: 2025-3-22 04:15
Space-Efficient Data Cubes for Dynamic Environmentsn data cubes is the range query. For range queries that summarize large regions of massive data cubes, computing the query result on-the-fly can result in non-interactive response times. To speed up range queries, values that summarize regions of the data cube are precomputed and stored. This faster作者: 連詞 時間: 2025-3-22 07:58
On Making Data Warehouses Activecisions must be carried out .. This paper introduces a novel architecture, the ., which applies the idea of event-condition-action rules (ECA rules) from active database systems to automize repetitive analysis and decision tasks in data warehouses. The work of an analyst is mimicked by ., which exte作者: GLOSS 時間: 2025-3-22 11:49 作者: 一起平行 時間: 2025-3-22 14:43 作者: 一起平行 時間: 2025-3-22 17:09
On the Importance of Tuning in Incremental View Maintenance: An Experience Case Studyl maintenance is feasible over a wide range of update sizes (.), that intuitive SQL formulations perform poorly, but that there are better alternatives. We show that these results can be meaningfully evaluated and presented only in the context of reasonable instance tuning.作者: 報復(fù) 時間: 2025-3-23 00:48
BEDAWA - A Tool for Generating Sample Data for Data Warehousesfficulties often arise in producing familiar, complete and consistent sample data of any scale. Producing sample data manually often causes problems, which can be avoided by an automatic generation tool producing consistent and statistical plausible data. The data generated by the tool is based on t作者: 紡織品 時間: 2025-3-23 04:46
DyDa: Dynamic Data Warehouse Maintenance in a Fully Concurrent Environmenturces (ISs) into one materialized repository. In dynamic environments such as the web, DWs must be maintained in order to stay up-to-date. Recent maintenance algorithms tackle this problem of DW management under concurrent data updates (DU), whereas the EVE system is the first to handle (non-concurr作者: 有法律效應(yīng) 時間: 2025-3-23 06:30 作者: Decibel 時間: 2025-3-23 13:10
View Maintenance for Hierarchical Semistructured Data. Many new data sources, however, are highly irregular and views often perform complex restructuring operations. This paper describes WHAX (Warehouse Architecture for XML), an architecture for defining and maintaining views over hierarchical semistructured data sources with key constraints. The WHAX作者: Urea508 時間: 2025-3-23 14:52
Maintaining Horizontally Partitioned Warehouse Viewsod. Aggregate views can be stored as a set of its horizontal fragments for the purposes of reducing warehouse query response time and maintenance cost..This paper proposes a scheme that efficiently maintains horizontally partitioned data warehouse views. Using the proposed scheme, only one view frag作者: Crayon 時間: 2025-3-23 21:46
Funding Research in Data Warehousing and Knowledge Discovery EPROS: The European Plan for Research ithe information society and the new economy, and (2) the extent to which new technological developments in data warehousing, knowledge discovery and extensive use of the internet can contribute to successfully meeting these challenges. Two specific issues are considered: the network nature of the ES作者: 草率男 時間: 2025-3-24 01:59
Elimination of Redundant Views in Multidimensional Aggregatesierarchies. To accelerate query-response time, pre-computed results are often stored for later retrieval. This adds a prohibitive storage overhead when applied to the whole set of aggregates. In this paper we describe a novel approach which provides the means for the efficient selection, computation作者: debouch 時間: 2025-3-24 03:44
Data Cube Compression with QuantiCubeslize data cubes as multidimensional arrays for fast, direct and random access to values. Those data cubes are used for exploration, with operations such as roll-up, drill-down, slice and dice. The data cubes can become very large, increasing the amount of I/O significantly due to the need to retriev作者: Collision 時間: 2025-3-24 09:37
History-Driven View Synchronizationsources, such as the deletion of a table or column, such views may become undefined. Using meta data about information redundancy and user preferences, views can be evolved as necessary to be defined on a modified information space after a source meta data change, while assuring the best possible co作者: Inordinate 時間: 2025-3-24 11:00
A Logical Model for Data Warehouse Design and Evolutionta integration and aggregation, and data organization into multidimensional structures. At the design level, a data warehouse is defined as a hierarchy of view expressions whose ultimate nodes are queries on data sources. In this paper, we propose a logical model for a data warehouse representation 作者: Abnormal 時間: 2025-3-24 15:25 作者: 不安 時間: 2025-3-24 20:55 作者: 凝乳 時間: 2025-3-25 00:04 作者: 階層 時間: 2025-3-25 03:28 作者: 帶傷害 時間: 2025-3-25 10:59 作者: 違法事實(shí) 時間: 2025-3-25 12:26 作者: AFFIX 時間: 2025-3-25 17:56 作者: 我沒有強(qiáng)迫 時間: 2025-3-25 22:07
Hans-J. Schneider,Dimitris Karagiannisrom active database systems to automize repetitive analysis and decision tasks in data warehouses. The work of an analyst is mimicked by ., which extend the capabilities of conventional ECA rules in order to support multidimensional analysis and decision making.作者: SPASM 時間: 2025-3-26 03:29
Daniel M. Kumpel,Francisco Serradillas using them. We formulate the graph join index selection problem, and present algorithms which can provide good query performance under limited storage space for the indices. We also evaluate these algorithms to show their utilities by using an example taken from Informix white paper.作者: 增減字母法 時間: 2025-3-26 04:59
https://doi.org/10.1007/978-3-642-83590-2llections increase the demand for space-efficient approaches. In this paper two techniques are presented that have the same update and query costs as earlier approaches, without introducing any space overhead.作者: semiskilled 時間: 2025-3-26 09:28
Computer-Integrated Manufacturing Handbook selections, joins, and important restructuring operations such as regrouping and aggregation. The incremental maintenance is based on the notion of . and generalizes well-known techniques from SPJ-views.作者: debase 時間: 2025-3-26 12:40 作者: AUGUR 時間: 2025-3-26 20:31 作者: 冰河期 時間: 2025-3-27 00:16 作者: languor 時間: 2025-3-27 01:06 作者: debris 時間: 2025-3-27 06:03 作者: Lice692 時間: 2025-3-27 12:30 作者: 有惡意 時間: 2025-3-27 14:38 作者: 繁榮中國 時間: 2025-3-27 20:21
Migration to OSI in Factory Communicationhe linear statistical model of a hierarchical n-way classification with fixed effects. We present an approach for a flexible generation of “real world” sample data using the BEDAWA (BEnchmarks forDAta WArehouses) tool.作者: Blood-Vessels 時間: 2025-3-28 00:13 作者: 不整齊 時間: 2025-3-28 05:42 作者: 真繁榮 時間: 2025-3-28 09:08 作者: 意外的成功 時間: 2025-3-28 11:45 作者: 琺瑯 時間: 2025-3-28 18:35
Assessment of World-Class Competitiontain their respective extents autonomously and independently from each other, thus allowing them to apply any existing incremental maintenance algorithm from the literature. We demonstrate that this registry-based coordination approach (RyCo) indeed achieves consistency across all DWs.作者: nerve-sparing 時間: 2025-3-28 19:02 作者: 被告 時間: 2025-3-28 22:54
Techniques for Displaying Sequences history of views and meta data. This technology enables us to adapt views to temporary meta data changes by cancelling out opposite changes and allows undo/redooperations on meta data without deteriorating the quality of the view. The mechanism described in this paper will therefore improve the quality of evolved views.作者: 要塞 時間: 2025-3-29 05:07
Applying Vertical Fragmentation Techniques in Logical Design of Multidimensional Databasesinteger linear programming problem, we define a cost function and outline a branch-and-bound algorithm to minimize it. Finally, we demonstrate the usefulness of our approach by presenting a set of experimental results based on the TPC-D benchmark.作者: 光明正大 時間: 2025-3-29 10:41 作者: 諄諄教誨 時間: 2025-3-29 12:51 作者: moratorium 時間: 2025-3-29 19:08 作者: 牢騷 時間: 2025-3-29 23:25
History-Driven View Synchronization history of views and meta data. This technology enables us to adapt views to temporary meta data changes by cancelling out opposite changes and allows undo/redooperations on meta data without deteriorating the quality of the view. The mechanism described in this paper will therefore improve the quality of evolved views.作者: BARGE 時間: 2025-3-30 02:25
DyDa: Dynamic Data Warehouse Maintenance in a Fully Concurrent Environment framework separates the concerns for concurrent DU and concurrent SC handling without imposing any restrictions on the autonomy nor on the concurrent execution of the ISs. This DyDa solution is currently being implemented within the EVE data warehousing system.作者: 罵人有污點(diǎn) 時間: 2025-3-30 07:00 作者: 厭食癥 時間: 2025-3-30 09:52
Elimination of Redundant Views in Multidimensional Aggregates in computation time and storage space can be achieved when redundant aggregates are eliminated. Savings have also been shown to increase as dimensionality increases. Finally, the implications of this work affect the indexing and maintenance of views and the user interface.作者: 自由職業(yè)者 時間: 2025-3-30 14:05 作者: 石墨 時間: 2025-3-30 20:23
Description of CIM System Elements framework separates the concerns for concurrent DU and concurrent SC handling without imposing any restrictions on the autonomy nor on the concurrent execution of the ISs. This DyDa solution is currently being implemented within the EVE data warehousing system.作者: lattice 時間: 2025-3-30 21:17
https://doi.org/10.1007/978-1-4757-3458-4 European Statistical System, and to invite the scientific community to participate actively in upcoming calls for proposals and calls for tender financed under the IST programme to solve the urgent needs for timely and high-quality statistics.作者: 思考才皺眉 時間: 2025-3-31 04:26 作者: Compatriot 時間: 2025-3-31 05:58
Conference proceedings 2000 namely, “A Foolish Consistency: Technical Challenges in Consistency Management” by Professor Anthony Finkelstein, University College London, UK; “European Plan for Research in Data Warehousing and Knowledge Discovery” by Dr. Harald Sonnberger (Head of Unit A4, Eurostat, European Commission); and “S作者: 喚醒 時間: 2025-3-31 09:28
Computer Integrated ManufacturingIn this paper we propose adaptive data warehouse maintenance, based on the optimistic partial replication of base local computation at the view as well as communication with the outside sources, and lowers the execution load on the base sources, which leads to a more up-to-date state of the data warehouse view.作者: 富足女人 時間: 2025-3-31 14:49 作者: calamity 時間: 2025-3-31 20:41
Data Warehousing and Knowledge Discovery978-3-540-44466-4Series ISSN 0302-9743 Series E-ISSN 1611-3349 作者: 絆住 時間: 2025-3-31 23:07
Daniel M. Kumpel,Francisco Serradillal maintenance is feasible over a wide range of update sizes (.), that intuitive SQL formulations perform poorly, but that there are better alternatives. We show that these results can be meaningfully evaluated and presented only in the context of reasonable instance tuning.作者: 切碎 時間: 2025-4-1 02:28
On the Importance of Tuning in Incremental View Maintenance: An Experience Case Studyl maintenance is feasible over a wide range of update sizes (.), that intuitive SQL formulations perform poorly, but that there are better alternatives. We show that these results can be meaningfully evaluated and presented only in the context of reasonable instance tuning.作者: 協(xié)議 時間: 2025-4-1 09:25
Yahiko Kambayashi,Mukesh Mohania,A. Min TjoaIncludes supplementary material: 作者: 結(jié)果 時間: 2025-4-1 12:32
Lecture Notes in Computer Sciencehttp://image.papertrans.cn/d/image/263211.jpg作者: 宇宙你 時間: 2025-4-1 14:49
https://doi.org/10.1007/3-540-44466-1Data warehouses; LA; OLAP; data engineering; data mining; data warehouse; data warehousing; database; decisi作者: 消音器 時間: 2025-4-1 19:52 作者: 神經(jīng) 時間: 2025-4-2 00:38 作者: 婚姻生活 時間: 2025-4-2 04:25
https://doi.org/10.1007/978-3-642-83590-2s consists of materializing redundant aggregates called views. In this paper we investigate the problem of vertical fragmentation of views aimed at minimizing the workload response time. Each view includes several measures which not necessarily are always requested together; thus, the system perform作者: Impugn 時間: 2025-4-2 08:26
https://doi.org/10.1007/978-3-642-83590-2n data cubes is the range query. For range queries that summarize large regions of massive data cubes, computing the query result on-the-fly can result in non-interactive response times. To speed up range queries, values that summarize regions of the data cube are precomputed and stored. This faster
