Results 211 to 220 of about 35,332 (261)
Some of the next articles are maybe not open access.
Informatik-Spektrum, 2016
Ubersicht Das Ziel eines kDW ist, die fur die Behandlung von Patienten routinemasig erhobenen Daten zusatzlich fur die Forschung und in speziellen Fallen auch fur die Behandlung nutzbar zu machen [1]. Die wesentlichen Schritte umfassen die Anonymisierung bzw.
Thomas Tolxdorff, Frank Puppe
openaire +1 more source
Ubersicht Das Ziel eines kDW ist, die fur die Behandlung von Patienten routinemasig erhobenen Daten zusatzlich fur die Forschung und in speziellen Fallen auch fur die Behandlung nutzbar zu machen [1]. Die wesentlichen Schritte umfassen die Anonymisierung bzw.
Thomas Tolxdorff, Frank Puppe
openaire +1 more source
Proceedings of the Joint EDBT/ICDT 2013 Workshops, 2013
During the development of the data warehouse (DW), too much data is transformed, integrated, structured, cleansed, and grouped in a single structure that is the DW. These various types of changes could lead to data corruption or data manipulation. Therefore, DW testing is a very critical stage in the DW development process.A number of attempts were ...
Neveen ElGamal +2 more
openaire +1 more source
During the development of the data warehouse (DW), too much data is transformed, integrated, structured, cleansed, and grouped in a single structure that is the DW. These various types of changes could lead to data corruption or data manipulation. Therefore, DW testing is a very critical stage in the DW development process.A number of attempts were ...
Neveen ElGamal +2 more
openaire +1 more source
2013
The previous chapter focused on the analysis of the spatial features of static objects such as stores, cities, or states, where by static we mean that the spatial features of these objects do not change (or change exceptionally) across time. However, there is a wide range of applications that require the analysis of the so-called moving objects, that ...
Vaisman, Alejandro Ariel +1 more
openaire +2 more sources
The previous chapter focused on the analysis of the spatial features of static objects such as stores, cities, or states, where by static we mean that the spatial features of these objects do not change (or change exceptionally) across time. However, there is a wide range of applications that require the analysis of the so-called moving objects, that ...
Vaisman, Alejandro Ariel +1 more
openaire +2 more sources
International Journal of Data Warehousing and Mining, 2014
This paper presents the idea of deductive data warehouses. Deductive data warehouses rely on deductive databases but instead of a database in the background a data warehouse is used. The authors show how Datalog (as a logic programming language) can be used to perform OLAP analysis on data.
openaire +1 more source
This paper presents the idea of deductive data warehouses. Deductive data warehouses rely on deductive databases but instead of a database in the background a data warehouse is used. The authors show how Datalog (as a logic programming language) can be used to perform OLAP analysis on data.
openaire +1 more source
2009
Data warehouses have been widely used in various capacities such as large corporations or public institutions. These systems contain large and rich datasets that are often used by several data mining techniques to discover interesting patterns.
David Morgan, Jai W. Kang, James M. Kang
openaire +1 more source
Data warehouses have been widely used in various capacities such as large corporations or public institutions. These systems contain large and rich datasets that are often used by several data mining techniques to discover interesting patterns.
David Morgan, Jai W. Kang, James M. Kang
openaire +1 more source
The Data Warehouse of Newsgroups
1999Electronic newsgroups are one of the primary means for the dissemination, exchange and sharing of information. We argue that the current newsgroup model is unsatisfactory, especially when posted articles are relevant to multiple newsgroups. We demonstrate that considerable additional flexibility can be achieved by managing newsgroups in a data ...
Himanshu Gupta 0001, Divesh Srivastava
openaire +1 more source
Contextualizing data warehouses with documents
Decision Support Systems, 2008Current data warehouse and OLAP technologies are applied to analyze the structured data that companies store in databases. The context that helps to understand data over time is usually described separately in text-rich documents. This paper proposes to integrate the traditional corporate data warehouse with a document warehouse, resulting in a ...
Juan Manuel Pérez-Martínez +3 more
openaire +1 more source
Data Warehouses Federation as a Single Data Warehouse
2016In this paper author presents an experiment, which shows that it is possible to form a federation of data warehouses that may simulate effectively one, “super” data warehouse. There is no need to create complete ETL tool to load data from source data warehouses into one, dedicated data warehouse.
openaire +1 more source
Data warehouse architecture classification
2017 40th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO), 2017The purpose of this study is to give an overlook and comparison of best known data warehouse architectures. Single-layer, two- layer, and three-layer architectures are structure-oriented one that are depending on the number of layers used by the architecture.
G. Blazic +2 more
openaire +2 more sources
Stonebraker on data warehouses
Communications of the ACM, 2011The Communications Web site, http://cacm.acm.org, features more than a dozen bloggers in the BLOG@CACM community. In each issue of Communications , we'll publish selected posts or excerpts. twitter Follow us on Twitter at http://twitter ...
openaire +1 more source