Sciweavers

AMW
2010
13 years 6 months ago
On the Decidability of Consistent Query Answering
Abstract. Consistent query answering (CQA) is about formally characterizing and computing semantically correct answers to queries posed to a database that may fail to satisfy certa...
Marcelo Arenas, Leopoldo E. Bertossi
APCCM
2008
13 years 6 months ago
Making Workflows Context-aware: A Way to Support Knowledge-intensive Tasks
In business processes, knowledge-intensive tasks are ones in which the people performing such tasks are involved in a fair degree of uncertainty. These people are required to appl...
Mitra Heravizadeh, David Edmond
AMW
2010
13 years 6 months ago
Robust Clustering of Data Streams using Incremental Optimization
Discovering the patterns in evolving data streams is a very important and challenging task. In many applications, it is useful to detect the dierent patterns evolving over time and...
Basheer Hawwash, Olfa Nasraoui
APCCM
2008
13 years 6 months ago
Modelling Inter-Process Dependencies with High-Level Business Process Modelling Languages
The work presented in this paper targets the software integration on the level of business process models. The goal is to create the behavioural description of an integrated syste...
Georg Grossmann, Michael Schrefl, Markus Stumptner
AMW
2010
13 years 6 months ago
Run-time Optimization for Pipelined Systems
Traditional optimizers fail to pick good execution plans, when faced with increasingly complex queries and large data sets. This failure is even more acute in the context of XQuery...
Riham Abdel Kader, Maurice van Keulen, Peter A. Bo...
APCCM
2008
13 years 6 months ago
A Practical Guide to Testing the Understandability of Notations
Model-driven development is the process of creating models of a software system and transforming them into source code. Since the stepwise transformations can be done automaticall...
Susanne Patig
AMW
2010
13 years 6 months ago
What You Must Remember When Processing Data Words
We provide a Myhill-Nerode-like theorem that characterizes the class of data languages recognized by deterministic finite-memory automata (DMA). As a byproduct of this characteriza...
Michael Benedikt, Clemens Ley, Gabriele Puppis
APCCM
2008
13 years 6 months ago
A Conceptual Model for Multidimensional Data
This paper introduces a Conceptual Data Model for Data Warehouse including multidimensional aggregation. It is based on Entity-Relationships data model. The conceptual data model ...
Anand S. Kamble
APCCM
2008
13 years 6 months ago
Context Analysis: Toward Pragmatics of Web Information Systems Design
On a high level of abstraction a Web Information System (WIS) can be described by a storyboard, which stract way specifies who will be using the system, in which way and for which...
Hui Ma, Klaus-Dieter Schewe, Bernhard Thalheim