planning - designing - developing IT
Special Interest Group on Systems Analysis and Design

Publications

Automatic Integrity Constraint Evolution due to Model Subtract Operations

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When evolving Conceptual Schemas (CS) one of the most common operations is the removal of some model elements. This...

An Ontological Framework for Evolutionary Model Management

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Ontology provides a system of basic primitives, terms, concepts and axioms that constitute the model. We present an ontology-based...

Elementary Translations: The Seesaws for Achieving Traceability Between Database Schemata

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There exist several recent approaches that leverages the use of model transformations during software development. The existence of different...

X2S: Translating XPath into Efficient SQL Queries

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Translating XPath into SQL queries is necessary if XML documents are stored in relational databases. Although most of the...

Towards the Managment of Time in Data-Intensive Web Sites

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The adoption of a logical model for temporal, data-intensive Web sites is proposed together with a methodology for the...

On Aggregation Operators for Fuzzy Information Sources

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During the development of fuzzy information systems, the aggregation fuzzy information sources should be considered. Aggregation operators are the...

Evolution of XML-Based Mediation Queries in a Data Integration System

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One of the main challenges in data integration systems is the maintenance of the mappings between the mediation schema...

CL2: A Multi-dimensional Clustering Approach in Sensor Networks

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Sensor networks are among the fastest growing technologies that have the potential of changing our lives drastically. These collaborative,...

Schema Versioning in Data Warehouses

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As several mature implementations of data warehousing systems are fully operational, a crucial role in preserving their up-to-dateness is...

TCMiner: A High Performance Data Mining System for Multi-dimensional Data Analysis of Traditional Chinese...

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This paper introduces the architecture and algorithms of TCMiner: a high performance data mining system for multi-dimensional data analysis...