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基于双渠道环境下在位制造商的阻止策略研究
双渠道定价 链外进入 阻止策略
2018/11/15
双渠道运营以提高顾客的购买体验为核心，不仅要求各渠道建立合理定价策略，同时要实现渠道间协同，这放大了制造商与零售商之间乃至整条供应链的冲突，进一步刺激链外企业进入行为，从而加剧在位制造商采取阻止策略.基于链外进入行为的普遍性与在位阻止的现实性，研究结果表明：当进入成本较低时，在位制造商无法阻止外来制造商进入；当进入成本过高时，在位制造商不用改变定价即可阻止进入；而当进入成本适中时，在位制造商可以通...
内生性回收率与信用风险度量研究
因子扩散过程 信用风险度量 数值模拟 实证检验
2016/2/29
在信用风险模型中,外生性回收率的设定会忽略回收率对损失分布尾部的影响,而且会导致潜在的模型风险。本文将因子扩散过程引入结构信用风险模型,获得了回收率和违约概率之间的内在关系,利用Monte Carlo模拟方法数值分析了预期回收率对违约概率和资产价值波动率的依赖性,结果表明预期回收率与违约率之间具有很强的负相关关系,而且这种相关关系会受到债务人资产价值波动率的正向影响。在内生性回收率下,推导了信用损...
Computation of the Maximum H_infinity-norm of Parameter-Dependent Linear Systems by a Branch and Bound Algorithm
Computation Maximum H_infinity-norm Parameter-Dependent Linear Systems Bound Algorithm
2015/7/13
For linear systems that contain unspecified parameters that lie in given intervals, we present a branch and bound algorithm for computing the maximum H_infinity-norm over the set of uncertain paramete...
A polynomial-time algorithm for determining quadratic Lyapunov functions for nonlinear systems
polynomial-time algorithm determining quadratic Lyapunov functions nonlinear systems
2015/7/13
We consider nonlinear systems dx/dt=f(x(t)) where Df(x(t)) is known to lie in the convex hull of L n times n matrices A_1,ldots,A_L. For such systems, quadratic Lyapunov functions can be determined us...
Efficient Nonlinear Optimization of Queueing Systems
Efficient Nonlinear Optimization Queueing Systems
2015/7/10
We present a systematic treatment of efficient nonlinear optimization of queuing systems. The suite of formulations uses the computational tool of convex optimization, with fast polynomial time algori...
Advances in Convex Optimization:Interior-point Methods,Cone Programming, and Applications
Advances in Convex Optimization Interior-point Methods Cone Programming Applications
2015/7/10
In this talk I will give an overview of some major developments in convex optimization that have emerged over the last ten years or so. The basic idea is that convex problems are fundamentally tractab...
Seeking Foschini's Genie: Optimal Rates and Powers in Wireless Networks
wireless networks power and rate control utility functions optimization
2015/7/10
An adaptive rate and power control approach is presented in this paper. The approach is layered, with a rate optimization algorithm selecting the optimal rates for the system and a power control algor...
Distributed Optimization for Cooperative Agents: Application to Formation Flight
Distributed Optimization Cooperative Agents Application Formation Flight
2015/7/10
We present a simple decentralized algorithm to solve optimization problems involving cooperative agents. Cooperative agents share a common objective and simultaneously pursue private goals. Furthermor...
Optimal Doping Profiles via Geometric Programming
Optimal Doping Profiles Geometric Programming
2015/7/10
We first consider the problem of determining the doping profile that minimizes base transit time in a (homojunction) bipolar junction transistor. We show that this problem can be formulated as a geome...
Fisher linear discriminant analysis (LDA) can be sensitive to the problem data. Robust Fisher LDA can systematically alleviate the sensitivity problem by explicitly incorporating a model of data uncer...
Piecewise-Affine State Feedback for Piecewise-Affine Slab Systems Using Convex Optimization
Piecewise-affi ne systems State feedback Convex optimization Ellipsoids Lyapunov function
2015/7/10
This paper shows that Lyapunov-based state feedback controller synthesis for piecewise-affine (PWA) slab systems can be cast as an optimization problem subject to a set of linear matrix inequalities (...
Geometric Programming for Circuit Optimization
Circuit sizing geometric programming convex optimization
2015/7/10
This tutorial concerns a method for solving a variety of circuit sizing and optimization problems, which is based on formulating the problem as a geometric program (GP), or a generalized geometric pro...
Optimization-Based Design and Implementation of Multi-Dimensional Zero-Phase IIR Filters
Optimization-Based Design Multi-Dimensional Zero-Phase IIR Filters
2015/7/10
This paper considers multi-dimensional infinite impulse response (IIR) filters that are iteratively implemented. The focus is on zero-phase filters with symmetric polynomials in the numerator and deno...
Temperature-Aware Processor Frequency Assignment for MPSoCs Using Convex Optimization
Temperature-aware thermal MPSoCs convex optimization
2015/7/10
The increasing processing capability of Multi-Processor Systems-on-Chips (MPSoCs) is leading to an increase in chip power dissipation, which in turn leads to significant increase in chip temperature. ...
Optimizing Adaptive Modulation in Wireless Networks via Utility Maximization
Optimizing Adaptive Modulation Wireless Networks via Utility Maximization
2015/7/9
We investigate adaptive modulation using the network utility maximization framework. We derive new crosslayer optimal power and rate adaptation policies for several practical modulation schemes. The b...