Resumo em Inglês:

Searching for information in long videos can be a time-consuming experience. In this paper, we describe OnAIR, an ontology-aided information retrieval system applied to retrieve clips from video collections. We used a video collection compiled from interviews with Ana Teixeira, a Brazilian artist. The interviews were made by Paula P. Braga, the domain expert. The interview is developed in the domain of contemporary art and the system uses a domain ontology to expand the queries with related terms. We tested the system with a battery of queries, and we veri.ed that the ontology contributes to the e.ciency improvement in terms of the relevance of retrieved documents. We designed the system to work in a domain-independent way, allowing us to move to other domains by just changing the underlying ontologies and video collections.

Resumo em Inglês:

Workflow management systems usually interpret a workflow definition rigidly. However, there are real life situations where users should be allowed to deviate from the prescribed static workflow definition for various reasons, including lack of information and unavailability of the required resources. To flexibilize workflow execution, this paper first proposes mechanisms that allow execution to proceed in the presence of incomplete information, by adopting presuppositions, and in the presence of negative information, by suggesting execution alternatives. Then, the paper presents an architecture for a workflow system, driven by ontologies that capture semantic relationships between workflows and resources. The architecture includes a component which uses matching techniques to find alternatives for workflows and resources.

Resumo em Inglês:

Software engineering is knowledge-intensive activity and knowledge is thought to be the most important asset in an organization. Therefore this paper presents an approach to support Knowledge Management in Software Development Environments that is strongly based on ontologies: Enterprise Oriented Software Development Environments. After describing the components of such environments, this paper focuses on the Enterprise Ontology and on three tools developed based on this ontology: a 'yellow pages' tool which shows the distribution of competencies in the organization, a tool to support the allocation of people to software projects and a graphic tool for representing and visualizing organizational processes.

Resumo em Inglês:

Ecolingua is an ontology for ecological quantitative data, which has been designed through reuse of a conceptualisation of quantities and their physical dimensions provided by the EngMath family of ontologies. A hierarchy of ecological quantity classes is presented together with their definition axioms in first-order logic. An implementation-level application of the ontology is discussed, by way of which conceptual ecological models are synthesised from data annotations in Ecolingua through reuse of existing model structures.

Resumo em Inglês:

This paper presents a Functional Ontology of Reputation that could be used as a common shared reputation knowledge by agents. Although there is a huge work on agent reputation, each research defines its own basic concepts. Sometimes different meanings are associated to the same term and in other occasions the same meaning is related to different terms. We claim that the reputation knowledge structured as an ontology could be used to enable the semantic integration level involved in the interoperation of software agents using different reputation models. We have illustrated this idea by showing a semantic mapping for the reputation concepts used in three distinct reputation models. That mapping shows how this ontology could act as a common global ontology that supports the semantic integration among these models.