Xiaoqi Cao

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—We present a dynamic semantic data replication scheme called DSDR for classic k-random search in unstruc-tured peer-to-peer (P2P) networks. During its k-random search each peer periodically updates its local view on the semantic overlay of the network based on observed queries (demand) and received information about provided items (supply), in particular(More)
—In this paper, we present a semantic-driven k-walkers-based search scheme, called S2P2P, for data information dissemination and query routing in unstructured peer-to-peer (P2P) networks. In S2P2P, each peer maintains its observation on the semantics of received queries (demands) and data information (supplies), as well as a local view on network topology.(More)
The paper presents an agent-supported framework for improving solutions for enterprise interoperability and enterprise collaboration. We present the context of COIN in the European research area and explain the basic approach and system architecture COIN is aiming at. Special emphasis is put on how agents can support enterprise inter-operability as well as(More)
Mobile peer-to-peer (P2P) computing with applications such as for video on demand, file sharing, and video conferencing is gaining momentum based on new standards and technologies such as IETF PPSP, WiFi-Direct and BitTorrent live streaming. In this paper, we describe the mobile system MyMedia, that allows users to search, share and experience videos and(More)
—The convergence of information technologies (IT) has enabled the Digital Enterprise in which engineering, production planning, manufacturing and sales processes are supported by IT-based collaboration, simulation and enactment. As a result, borders between reality and its virtual representations become increasingly blurred. Advanced tools need to support(More)
The problem of automated semantic peer-to-peer (P2P) service composition has been addressed in cross-disciplinary research of semantic web and P2P computing. Solutions for semantic web service composition in structured P2P networks benefit from the underlying distributed global index but at the cost of network traffic overhead for its maintenance. Current(More)