Multidimensionality in Statistical, OLAP, and Scientific Databases 47 Copyright © 2003, Idea Group Inc. Copying or distributing in print or electronic forms without written permission of Idea Group Inc. is prohibited. INTRODUCTION AND BACKGROUND There is a lot of data that can be viewed as multidimensional data. The term multidimensional databases typically refers to a collection of objects, ea...

background: the internet is a phenomena that changes human, specially the younger generation’s, life in the 21st century. online communication is a common way of interacting among adolescents who experience feelings of social anxiety. the aim of this study was to investigate the relationship between social anxiety and online communication in adolescents. methods: three hundred and thirty studen...

OLAP systems are designed by implementing the multidimensional data model. Data facts in the model are viewed as points in a space of application-related dimensions. Usually they are organized in levels which conform to a hierarchy. OLAP database facilitates a special class of queries performed on large collection of integrated data that support the decision making process. Central issue in dat...

This paper describes an automatic approach to identify lexical patterns that represent semantic relationships between concepts in an on-line encyclopedia. Next, these patterns can be applied to extend existing ontologies or semantic networks with new relations. The experiments have been performed with the Simple English Wikipedia and WordNet 1.7. A new algorithm has been devised for automatical...

The purpose of the paper was to identify the usefulness of assistance from teachers in relation to the students’ interaction in an online learning context. The findings of the study indicated that students possessed remarkably clear views as to the nature of the assistance from other students that influenced their online learning results. Online students may find these results useful in enhanci...

Advances in sentiment analysis have enabled extraction of user relations implied in online textual exchanges such as forum posts. However, recent studies in this direction only consider direct relation extraction from text. As user interactions can be sparse in online discussions, we propose to apply collaborative filtering through probabilistic matrix factorization to generalize and improve th...

We present a new technique and tool for testing of embedded systems using real-time online testing from non-deterministic timed automata specifications. We describe a sound and complete randomized online testing algorithm, and describe how to implement it using symbolic state representation and manipulation techniques. We propose the notion of relativized timed input/output conformance as the f...

This article discusses – and rejects – cyberutopia, an idealized theory of internet use that requires users to leave their bodies behind when online. The author instead calls for a cyberfeminist perspective in relation to studying the internet and other new media, centrally locating corporeality and embodiment. The underutilized concept of intra-agency is then employed to develop liminality in ...

background: there are no general strategies or tools to evaluate daily lesson plans; however, assessments conducted using traditional methods usually include course plans. this study aimed to evaluate the strengths and weaknesses of online survey software in collecting data on education in medical fields and the application of such softwares to evaluate students' views and modification of ...