搜索结果: 16-30 共查到“知识库 软件工程”相关记录843条 . 查询时间(2.618 秒)
We present a semi-automated technique for selectively deanimating
video to remove the large-scale motions of one or more
objects so that other motions are easier to see. The user draws
strokes to i...
This paper presents a software pipelining algorithm for the automatic extraction of ne-grain parallelism in general loops. The algorithm accounts for machine resource constraints in a way that smooth...
一种基于规则的软件体系结构层性能演化优化方法
性能评估 性能优化 软件体系结构 基于搜索的软件工程
2016/5/9
目前基于规则的软件体系结构（Software Architecture，简记为SA）层性能优化方法大多未充分考虑优化过程中规则的使用次数和使用顺序的不确定性，导致了搜索空间受限而难以获取更优的性能改进方案.针对这一问题并以最小化系统响应时间为优化目标，文中首先定义一种基于规则的SA层性能优化模型RPOM，以将SA层性能优化抽象为求解最优规则序列的数学问题；然后设计一种支持SA层性能改进规则序列执行...
红外波长的随机激光器设计及FDTD软件特性验证
随机激光器 FDTD软件 红外波长
2016/3/17
深入研究了随机激光等效腔的局域化特性，引入了外部光反馈下激光器的理论分析速率方程，设计了磁旋光晶体的光隔离器件实现随机激光器的改进。采用的Nd：YAG激光器的实验结果验证了改进激光器可以降低散射损耗，实现紫外激光的方向性输出。FDTD仿真结果进一步表明波导的TE模的光增益近似是平面波导的两倍；信号和泵浦强度的耦合在改进波导结构有了明显改进；输出功率结果证实了结构降低随机激光器的散射损耗。研究结果对...
针对MPRM（Mixed-Polarity Reed-Muller）电路的面积与可靠性折中优化问题，在逻辑级建立面积估算模型以及电路SER（Soft Error Rate）解析评价模型，并采用Pareto支配概念对MPRM电路进行面积与可靠性多目标优化.通过对MPRM电路的XOR部分进行树形异或门分解，并考虑多个输出之间异或门的共享，建立面积估算模型.采用信号概率和故障传播方法，并考虑电路中的逻辑...
协方差矩阵自适应演化策略学习机制综述
演化策略 协方差矩阵自适应 自适应学习 多元正态分布
2015/10/10
基于协方差矩阵自适应（CMA）的演化策略算法（ES）是一种优秀的、不依赖于梯度信息的随机局部优化算法.基于CMA的学习机制使其对搜索空间的任意可逆线性变换具有不变性，对于病态的、高度不可分的问题有优秀的求解能力.CMA学习机制具有较强的数学理论基础，这对设计其他演化算法有很好的借鉴意义.本文旨在详细分析CMA-ES的各种学习机制，并给出其所依赖的主要理论基础.最后通过实验比较CMA-ES各种变体的...
Bounds on Capacity and Minimum Energy-Per-Bit for AWGN Relay Channels
Additive white Gaussian noise (AWGN) channels channel capacity minimum energy-per-bit relay channel
2015/8/12
Upper and lower bounds on the capacity and minimum energy-per-bit for general additive white Gaussian noise (AWGN) and frequency-division AWGN (FD-AWGN) relay channel models are established. First, th...
Source Coding With Limited-Look-Ahead Side Information at the Decoder
Causal source codes delay-constrained coding Gel’fand–Pinsker channel rate distortion function Slepian–Wolf coding Wyner–Ziv coding
2015/8/12
We characterize the rate distortion function for the source coding with decoder side information setting when the ith reconstruction symbol is allowed to depend only on the first i + `side information...
Relay Networks With Delays
Relay Networks Delays
2015/8/12
The paper investigates the effect of link delays on the capacity of relay networks. The relay-with-delay is defined as a relay channel with relay encoding delay of d 2 units, or equivalently, a delay ...
Performance Benefits of Monolithically Stacked 3-D FPGA
Performance Benefits Monolithically Stacked 3-D FPGA
2015/8/12
The performance benefits of a monolithically stacked three-dimensional (3-D) field-programmable gate array (FPGA),whereby the programming overhead of an FPGA is stacked on top of a standard CMOS layer...
A Low-Power Field-Programmable Gate Array Routing Fabric
Field-programmable gate arrays (FPGAs) lowpower performance analysis routing architecture/fabric
2015/8/12
This paper describes a new programmable routing fabric for field-programmable gate arrays (FPGAs). Our results show that an FPGA using this fabric can achieve 1.57 times lower dynamic power consumptio...
Exploring FPGA Routing Architecture Stochastically
FPGA Routing Architecture Stochastically
2015/8/12
This paper proposes a systematic strategy to efficiently explore the design space of field-programmable gate array (FPGA) routing architectures. The key idea is to use stochastic methods to quickly lo...
Three-Receiver Broadcast Channels With Common and Confidential Messages
Secrecy capacity regions three-receiver broadcast channels wiretap channels
2015/8/12
This paper establishes inner bounds on the secrecy capacity regions for the general three-receiver broadcast channel with one common and one confidential message sets. We consider two setups. The firs...
An Efficient Feedback Coding Scheme With Low Error Probability for Discrete Memoryless Channels
Feedback discrete memoryless channel error exponent
2015/8/12
Existing fixed-length feedback communication schemes are either specialized to particular channels (Schalkwijk–Kailath, Horstein), or apply to general channels but either have high coding complexity (...
A Note on the Broadcast Channel With Stale State Information at the Transmitter
Broadcast channel channel with state feedback source coding with side information
2015/8/12
This paper shows that the Maddah-Ali–Tse (MAT) scheme, which achieves the symmetric capacity of two example broadcast channels with strictly causal state information at the transmitter, is a simple sp...