Results 101 to 110 of about 9,065 (221)

CLASSIFICATION OF LOGICAL DATA MODELS IMPLEMENTED BY CONTEMPORARY DBMS

open access: yesCifra: Информационные технологии и телекоммуникации
Apart from relational model, many contemporary DBMS implement different data models, including extensions of relational ones. Most of DBMS implement also multiple data models, and are so called “multi-model”.
Tarassov S.
doaj   +1 more source

Disclosure Limitation in OLAP [PDF]

open access: yes, 2012
„OLAP“ (On-Line Analytical Processing) stellt für Business Intelligence (BI) das Basis-konzept zur Strukturierung von Datenbeständen dar und bietet dem Anwender gleichzeitig Methoden zu deren explorativen Analyse.
Lange, Christoph
core   +1 more source

FOLAPE:基于位向量索引的快速OLAP引擎研究

open access: yes四川大学学报. 自然科学版, 2010
提高联机分析处理OLAP效率是学术界和工业界共同关注的课题.传统OLAP在处理复杂应用时,运算代价随维度增大而增大,为解决这一问题,做了如下工作:(1)分析现有OLAP模型的不足,设计了一种采用位向量索引技术的快速OLAP模型,FOLAPE;(2)FOLAPE支持索引的增量式更新,提高了数据更新效率;(3)针对FOLAPE特点,设计了新的聚集函数算法;(4)在真实数据上进行了实验验证.实验表明,FOLAPE相对于最新OLAP模型,其平均查询时间最低减少90%,最高减少95%,同时存储空间需求也显著降低.
牟昕   +6 more
doaj  

OLAP Mining: An Integration of OLAP with Data Mining [PDF]

open access: yes, 1998
OLAP mining is a mechanism which integrates on-line analytical processing (OLAP) with data mining so that mining can be performed in different portions of databases or data warehouses and at different levels of abstraction at user’s finger tips. With rapid developments of data warehouse and OLAP technologies in database industry, it is promising to ...
openaire   +1 more source

Computation of OLAP Cubes

open access: yes, 2005
The focus of Online Analytical Processing (OLAP) is to provide a platform for analyzing data (e.g., sales data) with multiple dimensions (e.g., product, location, time) and multiple measures (e.g., total sales or total cost).
Amin A. Abdulghani
core   +1 more source

Temporale Auswertungsformen in OLAP

open access: yes, 2003
Online Analytical Processing (OLAP) enables end-users to define complex multidimensional queries without the use of any programming skills. Most analytical data models are based on the star schema, which differentiates between dimensions and facts.
openaire   +3 more sources

Il SIT della Regione Puglia, uno strumento a beneficio dei comuni e degli enti locali della Regione

open access: yesGEOmedia, 2009
Puglia region's GIS: a tool in behalf of local public organizations InnovaPuglia, together with ESRI Italia and Sinergis as technological partners, set up a Geographic Information System for the italian Puglia region.
Valeria De Vecchi
doaj  

PPAC-CDW: A Privacy-Preserving Access Control Scheme With Fast OLAP Query and Efficient Revocation for Cloud Data Warehouse

open access: yesIEEE Access
Achieving privacy-preserving analytical query with fine-grained access control for cloud-based data warehouse (CDW) through the use of online analytical processing (OLAP) tool is a real challenge.
Somchart Fugkeaw, Lyhour Hak
doaj   +1 more source

OLAP Mining: An Integration of OLAP with Data Mining

open access: yes, 1997
OLAP mining is a mechanism which integrates on-line analytical processing (OLAP) with data mining so that mining can be performed in different portions of databases or data warehouses and at different levels of abstraction at user's finger tips ...
Jiawei Han
core  

OLTP AND OLAP SYSTEMS

open access: yes
OLTP and OLAP systems are essential in modern data management. OLTP systems handle daily business transactions such as sales, banking, and inventory with speed, accuracy, and reliability.
Polishetti Raghu   +3 more
core   +1 more source

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