搜索结果: 1-15 共查到“信息科学与系统科学 Optimization”相关记录38条 . 查询时间(0.234 秒)
MULTI-PATCHES IRIS BASED PERSON AUTHENTICATION SYSTEM USING PARTICLE SWARM OPTIMIZATION AND FUZZY C-MEANS CLUSTERING
Particle swarm optimization Fuzzy c-means Taylor’s series expansion weighted mean Hamming distance Iris recognition system
2017/6/19
Locating the boundary parameters of pupil and iris and segmenting the noise free iris portion are the most challenging phases of an automated iris recognition system. In this paper, we have presented ...
Efficient convex optimization for engineering design
Optimization numerical methods linear programming optimal control robust control convex programming interior-point methods FIR
2015/8/12
Many problems in engineering analysis and design can be cast as convex optimization problems, often nonlinear and nondifferentiable. We give a high-level description of recently developed interior-poi...
Policies for simultaneous estimation and optimization
Policy uncertainty systems linear systems secondary costs system parameters the gaussian distribution the impulse response system
2015/8/11
Policies for the joint identification and control of uncertain systems are presented. The discussion focuses on the case of a multiple input, single output linear system, with no dynamics and quadrati...
Low-authority controller design via convex optimization
Controller design system characteristic values of perturbation theory design sparse actuators and sensors
2015/8/11
In this paper we address the problem of low-authority controller (LAC) design. The premise is that the actuators have limited authority, and hence cannot significantly shift the eigenvalues of the sys...
Optimization-based tuning of low bandwidth control in spatially distributed systems
Low bandwidth controller controller filter control signal robust
2015/8/11
We describe a new method for tuning a certain family of low-bandwidth controllers for linear time-invariant and spatially-invariant (LTSI) plants. We consider LTSI controllers with a fixed structure, ...
Extending scope of robust optimization
Uncertainty optimization problem data the robust optimization model linear discrete time dynamic system the controller
2015/8/10
In this paper, we propose a new methodology for handling optimization problems with uncertain data. With the usual Robust Optimization paradigm, one looks for the decisions ensuring a required perform...
In complex problems it may, however, be very expensive or infeasible to determine the Hessian matrix A.
This motivates quasi-Newton methods which recursively estimate A of A−1
from the measure...
Joint Routing, MAC, and Link layer Optimization in Sensor Networks with Energy Constraints
Joint Routing MAC Link layer
2015/6/19
We consider sensor networks where energy is a limited resource so that energy consumption must be minimized while satisfying given throughput requirements. Moreover, energy consumption must take into ...
Decentralized Stochastic Decision Problems and Polynomial Optimization
Decision Problems Polynomial Optimization
2015/6/19
In this paper we consider the problem of determining optimal decentralized decision rules in discrete stochastic decision problems. Here we consider a static single-stage problem. It has been shown in...
Cross-layer Energy and Delay Optimization in Small-scale Sensor Networks
Small-scale Sensor Networks Optimization
2015/6/19
The general joint design of the physical, MAC, and routing layers to minimize network energy consumption is complex and hard to solve. Heuristics to compute approximate solutions and high-complexity a...
Distributed Linear Precoder Optimization and Base Station Selection for an Uplink Heterogeneous Network
Distributed Linear Precoder Optimization Base Station Selection Uplink Heterogeneous Network Information Theory
2012/5/9
In a heterogeneous wireless cellular network, each user may be covered by multiple access points such as macro/pico/relay/femto base stations (BS). An effective approach to maximize the sum utility (e...
Optimization of UAV Heading for the Ground-to-Air Uplink
UAV communication networks UAV relays UAV positioning interference mitigation beamforming
2011/8/22
Abstract: In this paper we consider a collection of single-antenna ground nodes communicating with a multi-antenna unmanned aerial vehicle (UAV) over a multiple-access ground-to-air wireless communica...
There exists a strong connection between numerical methods for the integration of ordinary differential equations and optimization problems. In this paper, we try to discover further their links. And ...
SECOND-ORDER CONVERGENCE PROPERTIES OF TRUST-REGION METHODS USINGINCOMPLETE CURVATURE INFORMATION, WITH AN APPLICATION TO MULTIGRID OPTIMIZATION
Nonlinear optimization Convergence to local minimizers Multilevel problems
2007/12/11
Convergence properties of trust-region methods for unconstrained nonconvex
optimization
is considered in the case where information on the objective function's local
curvature is incomplete, in the...
A VARIATION OF GOLDFARB'S METHOD FOR LINEARLY CONSTRAINED OPTIMIZATION PROBLEMS AND ITS SUPERLINEAR CONVERGENCE RATE
Conjugate projection superlinear conver
2007/8/7
This paper presents a variant algorithm of Goldfarb's method for linearly constrained optimization problems. In the variant algorithm, we introduce a concept called conjugate projection, which differs...