Fabio Patrizi

Learn More
We explore the paradigm of artifact-centric systems from a knowledge-based perspective. We provide a semantics based on interpreted-systems to interpret a first-order temporalepistemic language with identity in a multi-agent setting. We consider the model checking problem for this language and provide abstraction results. We isolate a natural subclass of(More)
In this paper we study the issue of service composition, for services that export a representation of their behavior in the form of a finite deterministic transition system. In particular, given a specification of the target service requested by the client as a finite deterministic transition system, the problem we face is how we can exploit the(More)
a r t i c l e i n f o a b s t r a c t The behavior composition problem amounts to realizing a virtual desired module (e.g., a surveillance agent system) by suitably coordinating (and re-purposing) the execution of a set of available modules (e.g., a video camera, vacuum cleaner, a robot, etc.). In particular, we investigate techniques to synthesize a(More)
Artifact systems are a novel paradigm for specifying and implementing business processes described in terms of interacting modules called artifacts. Artifacts consist of data and lifecycle models, accounting for the relational structure of the artifact state and its possible evolutions over time. We consider the problem of verifying artifact systems against(More)
In this paper we make a preliminary investigatation on the use of SAT technology for solving constraint problems. In particular, we solve many instances of several common benchmark problems for CP with different SAT solvers, by exploiting the declarative modelling language NPSpec, and Spec2Sat, an application that allows to compile NPSpec specifications(More)
The GSM framework provides a methodology for the development of artifact-centric systems, an increasingly popular paradigm in service-oriented computing. In this paper we tackle the problem of verifying GSM programs in a multi-agent system setting. We provide an embedding from GSM into a suitable multi-agent systems semantics for reasoning about knowledge(More)
We define a notion of bounded action theory in the situation calculus, where the theory entails that in all situations, the number of ground fluent atoms is bounded by a constant. Such theories can still have an infinite domain and an infinite set of states. We argue that such theories are fairly common in applications, either because facts do not persist(More)
Artifact systems are a novel paradigm for specifying and implementing business processes described in terms of interacting modules called artifacts. Artifacts consist of data and lifecycles, accounting respectively for the relational structure of the artifacts’ states and their possible evolutions over time. In this paper we put forward artifact-centric(More)
The promise of Web Service Computing is to use Web services as fundamental elements for realizing distributed applications/solutions. When no available service satisfies a desired specification, one might check whether (parts of) available services can be composed and orchestrated in order to realize the specification. The problem of automatic composition(More)