Beyond Centralised Search Engines- An Agent-Based Filtering Framework

In order to obtain an acceptable quality of filtering services in real time conditionsa trade-off between relevance of results and response time has to beaddressed while searching for needed information in numerous distributedrepositories. Unfortunately ignoring a necessity to address information retrievalin distributed and resource-aware manner is usually a serious drawbackfor many existing search engines that try to survive an ongoing informationexplosion. The essence of a proposed distributed approach for informationretrieval is in comprehensive coordination and cooperation mechanismswhich both take care of current availability of resources and try to improvethemselves during runtime. Additionally they are able to guarantee deliveryof results by combining multiple filtering strategies with very different capabilitiesand by using inbuilt self-healing for recovery after failures. As the realizationof the proposed mechanisms is described in details and experimentallyproven this book is mainly addressed to professionals in distributed informationretrieval and advanced search engine technologies. It is also directed towardsresearches in filtering strategies and agent technologies.