The increase in the number of companies seeking data warehousing solutions, in order to gain significant business advantages, has created the need for a decision-aid approach in choosing appropriate data warehouse (DW) systems. Owing to the vague concepts frequently represented in decision environments, we have proposed a fuzzy multi-criteria decision-making procedure, to facilitate data wareho...

Serious games have been used in education for decades. Playing increases motivation and engagement, fundamental components of the learning process. This paper presents the design and prototype implementation of an information technology strategy game called Emerge2Maturity. The game is about data warehouse development challenges. The game framework combines selection of a data warehouse archite...

During habitat selection, the presence of conspecifics can frequently drive a nonuniform distribution of animals across habitats of equivalent quality. In group-living species, subgroups of individuals might display mutual attraction while differing in their preferences for environmental resources. The final decision to settle requires individuals to integrate both environmental and social cues...

Data warehousing has quickly evolved into a unique and popular business application class. A data warehouse stores materialized views of data from one or more remote sources, with the purpose of efficiently implementing decision support or OLAP (On-Line Analytical Processing) queries. One of more important decisions in designing data warehouse is the selection of materialized views to be mainta...

Many studies focus on inventory systems to analyze different real-world situations. This paper considers a two-echelon supply chain that includes one warehouse and one retailer with stochastic demand and an up-to-level policy. The retailer’s lead time includes the transportation time from the warehouse to the retailer that is unknown to the retailer. On the other hand, the warehouse is unaware ...

Effective analysis of genome sequences and associated functional data requires access to many different kinds of biological information. A data warehouse [14,16] plays an important role for storage and analysis for genome sequence and functional data. A data warehouse stores lots of materialized views to provide an efficient decision-support or OLAP queries. The view-selection problem addresses...

Earth-Shelter construction is one of the aspects in architecture where the thermal mass of the earth behind the outer walls are applied in order to reduce heat loss and keep the internal temperature at human comfort range. In case of earth-shelter buildings, housing is especially important. As for its applicability the earth-shelter provides good housing. Typological studies of earth-shelter co...

The data cleaning is the process of identifying and removing the errors in the data warehouse. Data cleaning is very important in data mining process. Most of the organizations are in the need of quality data. The quality of the data needs to be improved in the data warehouse before the mining process. The framework available for data cleaning offers the fundamental services for data cleaning s...