Résumé. L’analyse en ligne (OLAP) dans les cubes de textes nécessite la définition de nouveaux types d’opérateurs d’analyse appropriés aux données textuelles. En effet, les opérateurs d’agrégation classiques ont montré leur efficacité pour l’analyse en ligne des données numériques, mais ils sont inadaptés pour l’analyse des données textuelles. Dans cet article, nous proposons un nouvel opérateu...

In the title Pb(II) complex, [Pb(2)(C(2)Cl(3)O(2))(2)(NO(3))(2)(C(12)H(8)N(2))(2)](n), the 1,10-phenanthroline ligand is chelating, the nitrate anion chelates one Pb(II) ion and simultaneously bridges a neighbouring Pb(II) ion via the third O atom, and the trichloro-acetate anion is bidentate, bridging two Pb(II) ions. The coordination geometry is based on a penta-gonal-bipramidal geometry defi...

This paper presents our approach to identifying areas of improvement in the intelligent components of adaptive Exploratory Learning Environments. Students’ interaction data from an online operational database are first transformed into a data warehouse in order to allow visualisation and exploration using online analytical processing (OLAP) tools. Using a microworld for secondary school algebra...

There are a set of noteworthy newfangled concepts and tools developed into a innovative technology that makes it conceivable to occurrence the problem of providing all the key people in the innovativeness with admittance to whatever level of information needed for the inventiveness to endure and flourish in an progressively modest world. The term that has come to characterize this new technolog...

The objective of this paper is to provide a metric that could be used to define success in a collaborative network. The metric shows three kinds of measurements that might influence the success of collaborative networks. This paper contributes to the body of knowledge by developing a methodology for measuring partners’ contribution, involvement and outcome in the collaborative network as a syst...

Construction projects are complex and risky. According to the literature, even profitable construction companies can fail due to poor cash flow. In order to survive in this rapidly changing environment, effective cash flow management is essential. Many unforeseen factors affect a construction project’s cash flow. The objective of the research presented in this paper is to examine the impact of ...

A simple microfluidic device was demonstrated to analyze intracellular contents from single cells with high throughput based on having different field strengths in geometrically defined sections of a microchannel for electrical lysis and electrophoresis.

We present a novel approach to speeding up the evaluation of OLAP queries that return aggregates over dimensions containing hierarchies. Our approach is based on our previous version of CubiST (Cubing with Statistics Trees), which pre-computes and stores all possible aggregate views in the leaves of a statistics tree during a one-time scan of the data. However, it uses a single statistics tree ...