The benefits of Markov-based predictive prefetching have been largely overshadowed by the overhead required to produce high quality predictions. While both theoretical and simulation results for prediction algorithms appear promising, substantial limitations exist in practice. This outcome can be partially attributed to the fact that practical implementations ultimately make compromises in orde...

The maintenance of organisation is a prerequisite for all viable systems in dynamic environments. In many living systems this organisation is, in part, achieved through coordination systems such as the nervous or endocrinic systems that can be seen as separate from the functional systems they coordinate. As software systems become more open and complex, the definition of separate organisational...

The general, linear eigenvalue equations (H XM)z = 0, where H and M are real symmetric matrices with M positive semidefimte, must be transformed if the Lanczos algorithm is to be used to compute eigenpairs (X,z). When the matrices are large and sparse (but not diagonal) some factorization must be performed as part of the transformation step. If we are interested in only a few eigenvalues a near...

In this paper, smart antennas are antenna array use to empathize spatial signal such as DOA of the signal and used to find beamforming vectors and locate the antenna ray in the desired direction of target. Beam formed adaptive algorithms allow the antenna to steer the beam in desired direction of interest while cancelling the obtrusive signals. The prompt growth of smart antenna makes use of di...

Norms have become a promising mechanism to ensure that open multi-agent systems (MASs) produce a desirable social outcome. MASs can be defined as societies in which autonomous agents work to achieve both societal and individual goals. Norms regulate the behavior of agents by defining permissions, obligations and prohibitions, as well as encouraging and discouraging the fulfillment of norms thro...

Database designers often point out that eager, update everywhere replication suuers from high deadlock rates, message overhead and poor response times. In this paper, we show that these limitations can be circumvented by using a combination of known and novel techniques. Moreover, we show how the proposed solution can be incorporated into a real database system. The paper discusses the new prot...

The maintenance of organisation is a prerequisite for all viable systems in dynamic environments. In many living systems this organisation is, in part, achieved through coordination systems such as the nervous or endocrinic systems that can be seen as separate from the functional systems they coordinate. As software systems become more open and complex, the definition of separate organisational...

Armed with super computational ability, the most efficient attack on symmetric-key systems is an exhaustive key search. A novel encryption method with infinite key space is presented by modifying traditional book cipher. Infinite key space means the unbounded entropy of the key space, which can frustrate any exhaustive key search. Moreover, this book cipher is immune from frequency analysis. Ex...

Status of this Memo This RFC describes the use of the Ethernet Address Resolution Protocol (ARP) by subnet gateways to permit hosts on the connected subnets to communicate without being aware of the existence of subnets, using the technique of "Proxy ARP" [6]. It is based on RFC-950 [1], RFC-922 [2], and RFC-826 [3] and is a restricted subset of the mechanism of RFC-925 [4]. Distribution of thi...

The use of Feature Models (FMs) to define the valid combinations of features in Software Product Lines (SPL) is becoming commonplace. To enhance the scalability of FMs, support for composing FMs describing different SPL aspects is needed. Some composition operators, with interesting property preservation capabilities, have already been defined but a comprehensive and efficient implementation is...