P2P Web Search: Make It Light, Make It Fly (Demo)

We propose a live demonstration of MinervaLight, a P2P Web search engine. MinervaLight combines the (previously separate) focused crawler BINGO! (to harvest Web data), the local search engine TopX, and our P2P Web search system MINERVA under one common user interface. The crawler unattendedly downloads and indexes Web data, where the scope of the focused crawl can be tailored to the thematic interest profile of the user. The result of this process is a local search index, which is used by TopX to evaluate user queries. In the background, MinervaLight continuously computes compact statistical synopses that describe a user's local search index and publishes that information to a conceptually global, but physically fully decentralized directory. MinervaLight o! ers a search interface where users can submit queries to MINERVA. Sophisticated query routing strategies are used to identify the most promising peers for each query based on the statistical synopses in the directory. The query is forwarded to those judiciously chosen peers and evaluated based on their local indexes. These results are sent back to the query initiator and merged into a single result list. We give a live demonstration of the fully functional system.