نتایج جستجو برای: nerwork flows

تعداد نتایج: 79691  

2005
Jing Li Chengchen Hu Bin Liu

In order to provide high quality network management, traffic scheduling and network security, we need the per flow traffic information. However, in a highspeed net link, the flows number is so large that it is infeasible to gather and process all flows’ information accurately and efficiently. Several studies showed that a small percentage of flows account for most of the total network throughpu...

Journal: :Discrete Mathematics 2017
Beifang Chen Jue Wang Thomas Zaslavsky

It is well-known that each nonnegative integral flow of a directed graph can be decomposed into a sum of nonnegative graph circuit flows, which cannot be further decomposed into nonnegative integral sub-flows. This is equivalent to saying that indecomposable flows of graphs are those graph circuit flows. Turning from graphs to signed graphs, the indecomposable flows are much richer than that of...

2002
Daniel F. Litim Jan M. Pawlowski

We study different renormalization group flows for scale-dependent effective actions, including exact and proper-time renormalization group flows. These flows have a simple one-loop structure. They differ in their dependence on the full field-dependent propagator, which is linear for exact flows. We investigate the inherent approximations of flows with a nonlinear dependence on the propagator. ...

Journal: :Journal of International Economics 2022

We propose a new quantile regression framework to predict the entire future probability distribution of capital flows emerging markets, based on changes in global financial conditions, domestic structural characteristics, and policies. The approach allows us differentiate between impact median versus tails predicted density flows, short- medium-term effects. find that FX- macroprudential interv...

2002
Krishna Pandit Jens Schmitt Ralf Steinmetz

Aggregation of data flows has two major advantages. One is the reduction of state complexity within the network, the other is the saving of resources by statistical multiplexing between the aggregated flows. In this paper, we show a simple, yet effective scheme to aggregate real-time flows which require a statistical guarantee on experienced loss and a deterministic guarantee on the maximum del...

Sustaining environmental flows to preserve biodiversity of aquatic plant and animal species, as well as constancy of water for human communities, is essential in many river ecosystems. On the other hand, hydrological changes caused by the dam and its related environmental problems have provoked many concerns for hydrologists, ecologists and policymakers. Therefore, the main aim of this research...

2010
VESSELIN PETKOV

For hyperbolic flows over basic sets we study the asymptotic of the number of closed trajectories γ with periods Tγ lying in exponentially shrinking intervals (x−e−δx, x+ e), δ > 0, x → +∞. A general result is established which concerns hyperbolic flows admitting symbolic models whose corresponding Ruelle transfer operators satisfy some spectral estimates. This result applies to a variety of hy...

Journal: :J. Comb. Theory, Ser. A 2004
Shmuel Onn

In this article we introduce the flow polynomial of a digraph and use it to study nowherezero flows from a commutative algebraic perspective. Using Hilbert’s Nullstellensatz, we establish a relation between nowhere-zero flows and dual flows. For planar graphs this gives a relation between nowhere-zero flows and flows of their planar duals. It also yields an appealing proof that every bridgeless...

2002
Daniel F. Litim Jan M. Pawlowski

We study different renormalisation group flows for scale dependent effective actions, including exact and proper-time renormalisation group flows. These flows have a simple one loop structure. They differ in their dependence on the full field-dependent propagator, which is linear for exact flows. We investigate the inherent approximations of flows with a non-linear dependence on the propagator....

Journal: :Symmetry 2015
Changzheng Qu Jingwei Han Jing Kang

We study the Bäcklund transformations of integrable geometric curve flows in certain geometries. These curve flows include the KdV and Camassa-Holm flows in the two-dimensional centro-equiaffine geometry, the mKdV and modified Camassa-Holm flows in the two-dimensional Euclidean geometry, the Schrödinger and extended Harry-Dym flows in the three-dimensional Euclidean geometry and the Sawada-Kote...

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