Massimo Marchi

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Preface Today on-line communities, as well as individuals, produce a substantial amount of unstructured (and extemporaneous) content, arising from tacit and explicit knowledge sharing. Various approaches, both in the managerial and computer science fields, are seeking ways to crystallize the-somewhat volatile, but often highly valuable-knowledge contained(More)
Vitality form is a term that describes the style with which motor actions are performed (e.g., rude, gentle, etc.). They represent one characterizing element of conscious and unconscious bodily communication. Despite their importance in interpersonal behavior, vitality forms have been, until now, virtually neglected in neuroscience. Here, using the(More)
We show how a standard grid service architecture can be improved by interposing a policy enforcement engine between a calling application and the relative client stubs. Therefore, with our solution selection and invocations are not hard-coded into client applications but (declaratively) defined and enforced outside the clients; therefore they can be(More)
We describe a modified grid architecture that allows the specification and enforcement connection policies to grid on Web Services. This is accomplished by interposing a policy enforcement engine between a calling application and the relative client stubs. Only service requests need be analyzed and filtered. Connection policies are conveniently expressed in(More)
We present the new release of the ORAC engine (Procacci et al., Comput Chem 1997, 18, 1834), a FORTRAN suite to simulate complex biosystems at the atomistic level. The previous release of the ORAC code included multiple time steps integration, smooth particle mesh Ewald method, constant pressure and constant temperature simulations. The present release has(More)
This article presents a new ab initio force field for the cofactors of bacterial photosynthesis, namely quinones and bacteriochlorophylls. The parameters has been designed to be suitable for molecular dynamics simulations of photosynthetic proteins by being compatible with the AMBER force field. To our knowledge, this is the first force field for(More)
In this work we present a prototype system aimed at extracting contents from online communities discussions and publishing them through aggregated RSS feeds. The major foreseeable impact of this project to the Community Informatics field will be helping people to manage the complexity intrinsic in dealing with the huge amount of dynamic information produced(More)
This paper presents some preliminary results obtained in the development of a new branch-and-bound algorithm for Answer Set Programming. We exploit the intrinsic parallelism of branch-and-bound to distribute the computation among agents that cooperate to find an answer set for the problem instance at hand. The effectiveness of our solution in extracting(More)
We describe a modified Grid architecture that allows to specify and enforce connection policies with preferences and integrity constraints. This is done by interposing a policy enforcement engine between a calling application and the relative client stubs. Such policies are conveniently expressed in the declarative policy specification language PPDL. In(More)
We propose a software architecture for semantics-based annotation of data extracted from Web sources. Starting from the LiXto suite, which enables semi-automated extraction of XML data from regular documents, we present a solution for attaching background information to individual tags by means of so-called decorations. Decoration is carried out as an(More)