A hardware-assisted design, dubbed cache-oriented multistage structure (COMS), is proposed for fast packet forwarding. COMS incorporates small on-chip cache memory in its constituent switching elements (SE’s) for a parallel router to interconnect its line cards (LC’s) and forwarding engines (FE’s, where table lookups are performed). Each lookup result in COMS is cached in a series of SE’s betwe...

We propose a P2P based communication model to resolve the inter-communication problem among the IPv4 and IPv6 terminals in large scale system. Our model well captures the traversing requirement of such hybrid network and achieves a balanced load through the networks. In addition, the model is highly adaptable to network topology changes and is able to support mobile terminals communication. We ...

Denial of Service (DoS) attack is one of the major problem in today's Internet. It constitutes the hardest security problems nowadays. Particularly Distributed Denial of Service (DDoS) attack have severe impact. The main aim of a DoS is the disruption of services by attempting to control access to a system or service instead of overthrowing the service itself. Disruption-Tolerant Networks (DTNs...

In this paper, a novel unity power factor (UPF) hysteresis current control method for surface-mounted permanent magnet synchronous motor (SPMSM) drive system is presented. The optimum voltage vectors, which are selected from a switching table according to the magnitude and phase of the stator current vector, are applying to the voltage source inverter (VSI). The UPF operation for SPMSM is achie...

This is a project on modeling time-varying volatility of S&P 500 weely return for the years 1990 to 2012 using Bayesian methods. First, MCMC on the log-stochastic volatility (SV) model is implemented with simulation results analyzed. Second, I generalize the SV model to encompass regime-switching properties with the markov switching log-stochastic volatility (MSSV) model, under which, high-vola...

MOTIVATION There are various cases where the biological function of an RNA molecule involves a reversible change of conformation. paRNAss is a software approach to the prediction of such structural switching in RNA. It is based on three hypotheses about the secondary structure space of a switching RNA molecule that can be evaluated by RNA folding and structure comparison. In the positive case, ...

We rst describe EVAR, a state{of{the{art speech understanding and dialog system which application domain is train time table information retrieval. The system | as others | is devided into two main components: a speech recognizer based on hidden Markov models (a statistical approach) and a knowledge-based linguistic component developed in a semantic network environment. When switching to a new ...

This paper proposes a new instruction permutation encoding mechanism to deal with power dissipation issue on interconnect bus between processor and memory. When program executable code is loaded into memory, instructions are re-scheduled, block by block, into a power efficient format. As a result, on cache miss when instruction block from memory is required, power consumption during transmissio...

This paper considers the problem of transporting a large table using multiple robotic agents. The problem requires at least two group behaviors of homing and herding which are to be coordinated in proper sequence. Existing GP methods for multiagent learning are not practical enough to find an optimal solution in this domain. To evolve this kind of complex cooperative behavior we present a novel...