SQTime: Time-Enhanced Social Search Querying
In this paper, we present SQTime, a system for social search queries that exploit temporal information available in social...
A Semiotic Approach to Conceptual Modelling
The work on Conceptual Modelling performed by our group at PUC-Rio is surveyed, covering four mutually dependent research topics....
Ontological Patterns, Anti-Patterns and Pattern Languages for Next-Generation Conceptual Modeling
This paper addresses the complexity of conceptual modeling in a scenario in which semantic interoperability requirements are increasingly present....
A Computer-Guided Approach to Website Schema.org Design
Schema.org offers to web developers the opportunity to enrich a website’s content with microdata and schema.org. For large websites,...
On Designing Archiving Policies for Evolving RDF Datasets on the Web
When dealing with dynamically evolving datasets, users are often interested in the state of affairs on previous versions of...
Benchmarking Performance for Migrating a Relational Application to a Parallel Implementation
Many organizations rely on relational database platforms for OLAP-style querying (aggregation and filtering) for small to medium size applications....
A Data Quality in Use Model for Big Data
Organizations are nowadays immersed in the Big Data Era. Beyond the hype of the concept of Big Data, it...
Business Intelligence and Big Data in the Cloud: Opportunities for Design-Science Researchers
Cloud computing and big data offer new opportunities for business intelligence (BI) and analytics. However, traditional techniques, models, and...
From Business Intelligence to Semantic Data Stream Management
The Semantic Web technologies are being increasingly used for exploiting relations between data. In addition, new tendencies of real-time...
Understandability of Goal Concepts by Requirements Engineering Experts
ARMOR is a graphical language for modeling business goals and enterprise architectures. In previous work we have identified problems...
