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Inter-job Write once read many (WORM) scenario is ubiquitous in MapReduce applications that are widely deployed on enterprise production systems. However, traditional MapReduce auto-tuning techniques can not address the inter-job WORM scenario. To address the shortcomings in existing works, this work presents a novel online cross-layer solution, FORESEER. It can automatically predict workloads' data...
As an important technique in modern sociology, social network analysis has gained a lot of attention from many disciplines, and been used as important complements to traditional statistics and data analysis. In order to make it affordable for analysts with massive and fast growing networks, we present X-RIME, a cloud-based library for large scale social network analysis. We propose an implementation-oriented...
In this paper, we explored the practical challenges in implementing mobile business processes today, and proposed a Business Communication Interaction Manager (BCIM) system. With BCIM, mobile users' application session correlation policies are explicitly enforced using a rule-based session correlator, communication processes are controlled through state machine technology, thus complex and transactional...
Various characteristics of applications determine different requirements of mobility management schemes. Realtime applications especially lay strict limitation on handoff latency and latency stretch. This limitation is exacerbated when system robust, scalability and load balancing are required simultaneously. In this paper, we present a peer-to-peer based mobility support scheme that keeps advantages...
Peer-to-Peer SIP (P2PSIP) is proposed to provide fully distributed multimedia communication systems. This paper focuses on analysis of call setup delay "(CSD) of P2PSIP system to evaluate whether it could provide equivalent signaling performance to that of traditional SIP or telephone networks. Call setup delay is composed of lookup latency in DHT overlay and INVITE transaction latency, and mainly...
A transit-stub P2PSIP architecture is proposed in this paper. In this architecture, heterogeneous P2PSIP overlays are interconnected in a decentralized approach provided by a transit overlay. A special SIP element, P2PSIP router, is designed to exchange SIP routing information and route SIP messages. Our architecture reacts to the change of route information quickly. Performance analysis indicates...
The cluster-based wireless sensor network (WSN) can enhance the whole network lifetime. In each cluster, the cluster head (CH) plays an important role in aggregating and forwarding data sensed by other common nodes. A major challenge in the WSN is the appropriate cluster head selection approach. In this paper, we propose a centralized cluster head selection approach using analytical hierarchy process...
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