OLAP operations in the multidimensional data model
Overview of Multidimensional Data Model - OLAP
... the multidimensional view of data through a multidimensional storage ...front-end multidimensional queries on the storage layer through direct ...the data set is ...sparse data ...
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Diamond multidimensional model and aggregation operators for document OLAP
... proposes data representations and algebraic operations for integrating semantic information ...into OLAP systems, which allow the authors to analyze a huge set of textual documents with their ...
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A novel multidimensional model for the OLAP on documents : modeling, generation and implementation
... textual data semantics and to organize it hierarchically, we introduce a new multidimensional model dedicated to the OLAP on documents, called “diamond”, allowing us to manage both document ...
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A novel multidimensional model for the OLAP on documents : modeling, generation and implementation
... textual data semantics and to organize it hierarchically, we introduce a new multidimensional model dedicated to the OLAP on documents, called “diamond”, allowing us to manage both document ...
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Efficient OLAP Operations in Spatial Data Warehouses
... operations, usually it is not practical to materialize all the possible aggregations because of storage and/or update cost constraints. A number of methods [HRU96; G97; GM99; SDN98] have been proposed which select ...
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Data Warehousing: Data Models and OLAP operations. By Kishore Jaladi
... term Data Warehousing • Data Warehouse: The term Data Warehouse was coined by Bill Inmon in 1990, which he defined in the following way: "A warehouse is a subject-oriented, integrated, ...
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A Multidimensional and Multiversion Structure for OLAP Applications
... wants data to be ...their model to track the links between transitions, and then be able to handle merging and splitting ...their model does not provide the means of reporting data in any ...
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OLAP Systems and Multidimensional Queries II
... • Relational model does not exactly match the multidimensional view on data.. • We need systems and query languages for multidimensional reporting.[r] ...
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Multidimensional modeling and analysis of large and complex watercourse data: an OLAP-based solution
... the OLAP technology to the field of water quality ...the OLAP sys- tem that we defined consists of two data cubes, a data cube storing data about the physicochemical water quality and ...
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The interrogation of the OLAP CUBE by using multidimensional analyses
... a data request (clause SELECT), a starting point (clause FROM) and a filter (clause ...the data, as well as the ability to extend the MDX with the functions defined by the ...the data accessing from ...
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Efficient Information Retrieval using Multidimensional OLAP Cube
... of data, which can be further used for future decision-making ...accurate data can be fetched from data warehouse. OLAP is one of the best data analytical techniques developed till now ...
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Implementing Real-Time OLAP with Multidimensional Dynamic Clustering
... In order to implement MDDC and MHC with the standard B-tree access methods in BDB, this implementation alters the comparison routine of the B-tree access method in BDB to compute bit interleaved addresses as part of the ...
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Efficient OLAP Operations For RDF Analytics
... efficient OLAP operations for the RDF data warehousing context introduced in ...recall OLAP operation definitions from that ...such operations on AnQs, briefly discuss related work, and ...
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A Data Warehouse Conceptual Data Model for Multidimensional Aggregation
... conceptual model is obviously important, if we restrict our attention to data models which are computable (in a gen- eral sense), then we should be very ...a Data Warehouse Conceptual Data ...
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The strategic importance of OLAP and multidimensional analysis A COGNOS WHITE PAPER
... relational data Dimensionally modeled relational schemas have been used for multidimensional analysis for some time, but there have been issues around the use of structured query language (SQL) and ...
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OLAP in the Data Warehouse
... Multidimensional Analysis The core of the OLAP system is multidimensional analysis. Here we review the dimensional model and cube. We start with a simple STAR schema of a retail store ...
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Data Warehouses and OLAP
... in data warehousing ...the data and the ...all data records to determine whether each record satisfies the specified ...answer multidimensional queries effi- ciently, one faces a difficult ...
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OLAP Data Scalability
... Exploded data: The “Number of populated base data Points” multiplied by “CGF” to the power of t he number of dimensions in the ...exploded data is larger than base data: “Exploded data” ...
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Multidimensional User Data Model for Web Personalization
... on data usage mining of the user with a view to make the Web experience of the user personalized to the user’s ...a multidimensional user data model for web ...activities. Data ...
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Fuzzy Spatial Data Warehouse: A Multidimensional Model
... a multidimensional database allowing aggregation and disaggregation OLAP operations on it, avoiding the use of classic spatial access ...the multidimensional model improving the ...
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