In the past few years, the Multi-agent systems (MAS) area has presented an accelerated growth. New techniques and tools are constantly being proposed and several methodologies have...
Most image retrieval systems only allow a fragment of text or an example image as a query. Most users have more complex information needs that are not easily expressed in either of...
Abstract. In this paper, we study the existence of multicollisions in iterated hash functions. We show that finding multicollisions, i.e. r-tuples of messages that all hash to the...
It is argued that we are experiencing a paradigm shift from a user perspective to a client perspective in library and information science. The paradigm shift is brought about by re...
MorphMix is a peer-to-peer circuit-based mix network to provide practical anonymous low-latency Internet access for millions of users. The basic ideas of MorphMix have been publish...