Sciweavers

DAWAK
2005
Springer
13 years 5 months ago
Incremental Data Mining Using Concurrent Online Refresh of Materialized Data Mining Views
Abstract. Data mining is an iterative process. Users issue series of similar data mining queries, in each consecutive run slightly modifying either the definition of the mined dat...
Mikolaj Morzy, Tadeusz Morzy, Marek Wojciechowski,...
DAWAK
2005
Springer
13 years 9 months ago
A Decremental Algorithm for Maintaining Frequent Itemsets in Dynamic Databases
Data mining and machine learning must confront the problem of pattern maintenance because data updating is a fundamental operation in data management. Most existing data-mining alg...
Shichao Zhang, Xindong Wu, Jilian Zhang, Chengqi Z...
DAWAK
2005
Springer
13 years 9 months ago
Efficient Compression of Text Attributes of Data Warehouse Dimensions
This paper proposes the compression of data in Relational Database Management Systems (RDBMS) using existing text compression algorithms. Although the technique proposed is general...
Jorge Vieira, Jorge Bernardino, Henrique Madeira
DAWAK
2005
Springer
13 years 9 months ago
Design and Development of a Tool for Integrating Heterogeneous Data Warehouses
In this paper we describe the design of a tool supporting the integration of independently developed data warehouses, a problem that arises in several common scenarios. The basic f...
Riccardo Torlone, Ivan Panella
DAWAK
2005
Springer
13 years 9 months ago
A Survey of Open Source Tools for Business Intelligence
Christian Thomsen, Torben Bach Pedersen
DAWAK
2005
Springer
13 years 9 months ago
Extending UML 2 Activity Diagrams with Business Intelligence Objects
Abstract. Data Warehouse (DWH) information is accessed by business processes. Today, no conceptual models exist that make the relationship between the DWH and the business processe...
Veronika Stefanov, Beate List, Birgit Korherr
DAWAK
2005
Springer
13 years 9 months ago
Graph-Based Modeling of ETL Activities with Multi-level Transformations and Updates
Extract-Transform-Load (ETL) workflows are data centric workflows responsible for transferring, cleaning, and loading data from their respective sources to the warehouse. Previous ...
Alkis Simitsis, Panos Vassiliadis, Manolis Terrovi...
DAWAK
2005
Springer
13 years 9 months ago
Processing Sequential Patterns in Relational Databases
Database integration of data mining has gained popularity and its significance is well recognized. However, the performance of SQL based data mining is known to fall behind specia...
Xuequn Shang, Kai-Uwe Sattler
DAWAK
2005
Springer
13 years 9 months ago
Weighted K-Means for Density-Biased Clustering
Kittisak Kerdprasop, Nittaya Kerdprasop, Pairote S...