Azzurra Ragone

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Feature modeling is a technique for capturing commonality and variability. Feature models symbolize a representation of the possible application configuration space, and can be customized based on specific domain requirements and stakeholder goals. Most feature model configuration processes neglect the need to have a holistic approach towards the(More)
We propose a framework and polynomial algorithms for semantic-based automated Web service composition, fully compliant with Semantic Web technologies. The approach exploits the recently proposed Concept Abduction inference service in Description Logics to extend Concept covering definition to expressive logics and to solve Concept Covering problems in a(More)
Inspired by the Google Wonder Wheel, in this paper we present Semantic Wonder Cloud (SWOC): a tool that helps users in knowledge exploration within the DBpedia dataset by adopting a hybrid approach. We describe both the architecture and the user interface. The system exploits not only pure semantic connections in the underlying RDF graph but it mixes the(More)
We propose a framework for multi-issue bilateral negotiation, where issues are expressed and related to each other via Description Logics. Agents’ goals are expressed through (complex) concepts, and the worth of goals as weights over concepts. We adopt a very general setting with incomplete information by letting agents keep both goals and worths of goals(More)
The recent proliferation of crowd computing initiatives on the web calls for smarter methodologies and tools to annotate, query and explore repositories. There is the need for scalable techniques able to return also approximate results with respect to a given query as a ranked set of promising alternatives. In this paper we concentrate on annotation and(More)
Semantic-based e-marketplaces have emerged in recent years, to ease the initial phase of transaction in e-marketplaces, where demand/supply descriptions can be complex and expressive.With the - long term - aim of building an e-marketplace fully exploiting rich semantic descriptions in all stages of a transaction, in this paper we propose a semantic-oriented(More)
We propose a logic-based approach to automated oneshot multi-issue bilateral negotiation. We use logic in two ways: (1) a logic theory to represent relations among issues – e.g., logical implication – in contrast with approaches that describe issues as uncorrelated with each other; (2) utilities over formulas to represent agents having preferences over(More)
Knowledge management is characterized by many different activities ranging from the elicitation of knowledge to its storing, sharing, maintenance, usage and creation. Skill management is one of such activities, with its own peculiarities, as it focuses on full exploitation of knowledge individuals in an organization have, in order to carry out at best given(More)
In this paper we focus on the analysis of peer reviews and reviewers behaviour in a number of different review processes. More specifically, we report on the development, definition and rationale of a theoretical model for peer review processes to support the identification of appropriate metrics to assess the processes main characteristics in order to(More)
We propose a framework to compute the utility of an agreement w.r.t. a preference set in a negotiation process. In particular, we refer to preferences expressed as weighted formulas in a decidable fragment of First-order Logic and agreements expressed as a formula. We ground our framework in Description Logics (DL) endowed with disjunction, to be compliant(More)