Aumentando las consultas de usuario para propósitos de adaptación en ambientes nómadas

PUMAS is a framework based on agents and an approach Peer to Peer (P2P), which allows to nomadic user to access several sources of information through different types of devices, eventually mobile. PUMAS provides to nomadic user information adapted to her /his preferences and to the character istics of the context of use (composed of character istics such as location, connection moment, character istic of the used device). In order to deliver adapted results, PUMAS has mechanisms of enr ichment of the initial query by the addition of cr iter ia accounting for the user preferences and the context of use. This phase of enr ichment of the query precedes a process of query routing composed of three activities: the analysis of the query, the selection of the information sources which are able to answer it and the redirection of the query towards these sources. After a state of the ar t dedicated to the query routing in P2P environments, we present the framework PUMAS. Several scenar ios of use of PUMAS are descr ibed, in par ticular , the processes of enr ichment and query routing which PUMAS executes in order to deliver to the user information adapted to her /his character istics. Keywords—P2P Systems, Agents, Query Routing, PUMAS, Nomadic Environment.