Emergent communities for semantic collaboration in multi-knowledge environments : methods and techniques
Tesi di Dottorato
Data di Pubblicazione:
2007
Citazione:
Emergent communities for semantic collaboration in multi-knowledge environments : methods and techniques / S. Montanelli ; Silvana Castano, Vincenzo Piuri. DIPARTIMENTO DI INFORMATICA E COMUNICAZIONE, 2007. 19. ciclo, Anno Accademico 2005/2006.
Abstract:
The need of methods and techniques to foster semantic collaboration is a challenging
issue at the current stage of development of P2P networks and open distributed systems
in general. In this respect, the emergence of collaboration among peers requires the
capabilities to share data and resources by dynamically selecting the most appropriate
partners within the context of a given task. These scenarios are multi-knowledge, in that
no centralized authorities are defined to manage a comprehensive view of the resources
shared by all the nodes in the system, due to the high dynamism and variability of
collaboration and sharing requirements.
With respect to this scenario, the thesis work has focused on investigating the peculiar
aspects and requirements of knowledge sharing in open distributed systems,
and in P2P systems in particular. In this context, ontologies and ontology matching
techniques have been identified as a key solution for enabling peers with similar contents
to gradually “emerge” and for allowing the network to self-configure by linking
them as semantic neighbors. The main contribution of the thesis work regards the
definition of methods and techniques for enforcing semantic collaboration among autonomously
emergent semantic neighbors. In particular, two main goals have been
obtained. On one side, the development of a matching-driven semantic routing mechanism,
called H-Link, for scalable distribution of knowledge requests on a semantic
basis and for effective sharing of distributed resources. On the other side, the defi-
nition of consensus-driven techniques which exploit ontological resource descriptions
and ontology matching in order to form, maintain, and disband semantic communities
of peers, with application to the Helios knowledge-sharing P2P system.
Tipologia IRIS:
13 - Tesi di dottorato discussa entro ottobre 2010
Keywords:
P2P semantic routing ; P2P community formation ; ontology matching
Elenco autori:
S. Montanelli
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