Keynote Papers -- A Probabilistic Logic for Information Retrieval -- Applications of Web Query Mining -- Peer-to-Peer -- BuddyNet: History-Based P2P Search -- A Suite of Testbeds for the Realistic Evaluation of Peer-to-Peer Information Retrieval Systems -- Federated Search of Text-Based Digital Libraries in Hierarchical Peer-to-Peer Networks -- Information Retrieval Models (I) -- ‘Beauty’ o…