搜索结果: 76-90 共查到“知识库 管理信息系统”相关记录2040条 . 查询时间(2.937 秒)
Hyperspectral Image Unmixing via Alternating Projected Subgradients
Hyperspectral Image Unmixing Alternating Projected Subgradients
2015/7/10
We formulate the problem of hyperspectral image unmixing as a nonconvex optimization problem, similar to nonnegative matrix factorization. We present a heuristic for approximately solving this problem...
Fast Computation of Optimal Contact Forces
Convex optimization force closure friction cone grasp force interior-point method
2015/7/10
We consider the problem of computing the smallest contact forces, with point-contact friction model, that can hold an object in equilibrium against a known external applied force and torque. It is kno...
Two-fund separation under model mis-specification
Two-fund separation under model mis-specification
2015/7/9
The two-fund separation theorem tells us that an investor with quadratic utility can separate her asset allocation decision into two steps: First, find the tangency portfolio (TP), i.e., the portfolio...
Design of Low-Bandwidth Spatially Distributed Feedback
Distributed system control multidimensional optimization PID bandwidth loopshaping
2015/7/9
The paper considers a family of linear time-invariant and spatially-invariant (LTSI) systems that are both distributed and localized. The spatial responses of the distributed plant are localized in sp...
Identification of Stable Genetic Networks Using Convex Programming
Identifi cation Stable Genetic Networks Convex Programming
2015/7/9
Gene regulatory networks capture interactions between genes and other cell substances, resulting in various models for the fundamental biological process of transcription and translation. The expressi...
Tractable Approximate Robust Geometric Programming
Geometric programming linear programming piecewise-linear function
2015/7/9
The optimal solution of a geometric program (GP) can be sensitive to variations in the problem data. Robust geometric programming can systematically alleviate the sensitivity problem by explicitly inc...
Further Relaxations of the Semidefinite Programming Approach to Sensor Network Localization
sensor network localization semidefi nite programming
2015/7/9
Recently, a semidefinite programming (SDP) relaxation approach has been proposed to solve the sensor network localization problem. Although it achieves high accuracy in estimating the sensor locations...
Fastest Mixing Markov Chain on Graphs with Symmetries
Markov chains fast mixing eigenvalue optimization semidefi nite programming
2015/7/9
We show how to exploit symmetries of a graph to efficiently compute the fastest mixing Markov chain on the graph (i.e., find the transition probabilities on the edges to minimize the second-largest ei...
Genetic Network Identification using Convex Programming
Genetic Network Identification Convex Programming
2015/7/9
Gene regulatory networks capture interactions between genes and other cell substances, resulting in various models for the fundamental biological process of transcription and translation. The expressi...
Automatic Code Generation for Real-Time Convex Optimization
Automatic Code Generation Real-Time Convex Optimization
2015/7/9
This chapter concerns the use of convex optimization in real-time embedded systems, in areas such as signal processing, automatic control, real-time estimation, real-time resource allocation and decis...
Fast Algorithms for Resource Allocation in Wireless Cellular Networks
Fast computation resource allocation scheduling wireless cellular networks
2015/7/9
We consider a scheduled orthogonal frequency division multiplexed (OFDM) wireless cellular network where the channels from the base-station to the n mobile users undergo flat fading. Spectral resource...
Optimizing Adaptive Modulation in Wireless Networks via Multi-Period Network Utility Maximization
Optimizing Adaptive Modulation Wireless Networks via Multi-Period Network Utility Maximization
2015/7/9
We present a crosslayer technique to find and characterize optimal control policies for wireless networks operating at different time scales at the upper layer and physical layer. The technique can al...
Real-Time Convex Optimization in Signal Processing
Real-Time Convex Optimization Signal Processing
2015/7/9
Convex optimization has been used in signal processing for a long time, to choose coefficients for use in fast (linear) algorithms, such as in filter or array design; more recently, it has been used t...
Compressed Sensing Based Cone-Beam Computed Tomography Reconstruction with a First-Order Method
cone-beam computed tomography compressed sensing weighted least-squares
2015/7/9
This article considers the problem of reconstructing cone-beam computed tomography (CBCT) images from a set of undersampled and potentially noisy projection measurements. The authors cast the reconstr...
In this paper we describe an approximate dynamic programming policy for a discrete-time dynamical system perturbed by noise. The approximate value function is the pointwise supremum of a family of low...