检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

375 篇 会议
184 篇 期刊文献
2 册 图书

馆藏范围

561 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

372 篇 工学
- 187 篇 计算机科学与技术...
- 116 篇 软件工程
- 113 篇 信息与通信工程
- 55 篇 电子科学与技术（可...
- 40 篇 仪器科学与技术
- 33 篇 电气工程
- 32 篇 控制科学与工程
- 31 篇 网络空间安全
- 26 篇 机械工程
- 17 篇 材料科学与工程（可...
- 17 篇 化学工程与技术
- 13 篇 生物工程
- 10 篇 土木工程
- 9 篇 光学工程
- 8 篇 动力工程及工程热...
- 8 篇 航空宇航科学与技...
- 6 篇 冶金工程
106 篇 理学
- 43 篇 数学
- 27 篇 物理学
- 20 篇 化学
- 16 篇 生物学
- 15 篇 统计学（可授理学、...
- 12 篇 系统科学
95 篇 管理学
- 81 篇 管理科学与工程(可...
- 19 篇 工商管理
- 16 篇 图书情报与档案管...
16 篇 文学
- 15 篇 新闻传播学
14 篇 法学
- 9 篇 社会学
10 篇 医学
- 8 篇 临床医学
10 篇 军事学
- 8 篇 军队指挥学
2 篇 经济学
2 篇 农学

主题

24 篇 security
14 篇 feature extracti...
13 篇 algorithm design...
11 篇 signal to noise ...
11 篇 training
10 篇 throughput
10 篇 scheduling
9 篇 routing
8 篇 network topology
8 篇 bandwidth
8 篇 vectors
8 篇 switches
8 篇 internet
8 篇 clustering algor...
7 篇 noise
7 篇 semantics
7 篇 virtualization
7 篇 heterogeneous ne...
6 篇 load balancing
6 篇 architecture

机构

102 篇 national digital...
45 篇 national digital...
39 篇 national digital...
18 篇 china national d...
11 篇 national digital...
11 篇 china national d...
11 篇 school of cyber ...
10 篇 purple mountain ...
9 篇 china national d...
9 篇 national digital...
8 篇 national digital...
8 篇 national digital...
8 篇 national digital...
8 篇 national digital...
7 篇 national digital...
7 篇 information engi...
6 篇 national digital...
6 篇 state key labora...
5 篇 school of cyber ...
5 篇 national digital...

作者

24 篇 kaizhi huang
18 篇 guozhen cheng
17 篇 jiangxing wu
16 篇 julong lan
15 篇 hongchang chen
14 篇 xinsheng ji
14 篇 bin yan
12 篇 hongchao hu
11 篇 wang binqiang
11 篇 yunfei guo
10 篇 lan julong
10 篇 jian chen
10 篇 binqiang wang
10 篇 ruiyang huang
10 篇 liang jin
10 篇 fucai chen
9 篇 jianpeng zhang
9 篇 huang kaizhi
9 篇 peng yi
9 篇 hu yuxiang

语言

532 篇 英文
18 篇 中文
8 篇 其他
1 篇 日文
1 篇 朝鲜文

检索条件"机构=National Digital Switching System Engineering and Technology R&D Center"

共 561 条记录，以下是251-260 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Physical Layer Secret Key Capacity Using Correlated Wireless Channel Samples

Physical Layer Secret Key Capacity Using Correlated Wireless...

引用

IEEE Global Communications Conference

作者： Xu Wang Liang Jin Kaizhi Huang Mingliang Li Yi Ming National Digital Switching System Engineering and Technological R&D Center

ISBN: (纸本)9781509013296

When extracting physical layer security secret key with multiple wireless channel samples, its capacity is affected by the time difference of channel sounding, terminal's moving speed, sampling period, the number of samples, and additive noise. In order to quantitatively analyze their effects and determine the constrains on the optimal sampling period, a closed-form solution to the physical layer secret key capacity in the time domain is derived over the uniform scattering environment. Simulation results indicate that the results of this paper can be applied to both the uniform and non-uniform scattering environment. Furthermore, the feasibility to extract physical layer secret key from the commercial Td-LTE and the promising co-frequency co-time full duplex communication systems is verified.

关键词： Physical layer security Physical layer secret key extraction Secret key capacity Correlated wireless channel samples Physical layer secret key Timedif TIME-dOMAIN wireless channels Additive noise sampling interval

来源：评论

学校读者我要写书评

暂无评论

An Object detection Algorithm based on deformable Part Models with Bing Features

An Object Detection Algorithm based on Deformable Part Model...

引用

2016 5th International Conference on Advanced Materials and Computer Science(ICAMCS 2016)

作者： Chunwei Li Youjun Bu National Digital Switching System Engineering & Technological R&D Center

To solve the problem that the positioning strategy with sliding window approache requires exhaustive search in feature pyramids,the paper proposes an object detection algorithm based on deformable part models with Bing features to help object *** of all,input image are preprocessed with the objectness detection algorithm with Bing features and a set of potentia windows that may contain target objects are obtained,and then the deformable part model is regarde as the class-specific detector to match potential windows,at last Non-Maximum Suppression is use to merge and reduce window areas of results to obtain final detection *** experimental resul on Pascal VOC 2007 dataset show that the algorithm in the paper outperforms the original dPM in 1out of 20 classes,achieving an improvement of 2.7% mA P.

关键词： Object detection deformable part models binarized normed gradients feature

来源：评论

学校读者我要写书评

暂无评论

Energy efficiency resource allocation in downlink cell-free massive MIMO system

Energy efficiency resource allocation in downlink cell-free ...

引用

IEEE International Symposium on Intelligent Signal Processing and Communication systems (ISPACS)

作者： Ying Hu Fei Zhang Chunguo Li Yi Wang rui Zhao School of Information Science and Engineering Southeast University Nanjing China School of Electronics and Information Jiangsu University of Science and Technology Zhenjiang China School of Electronics and Communication Engineering Zhengzhou University of Aeronautics Zhengzhou China China National Digital Switching System Engineering &Technological R&D Center Zhengzhou China College of Information Science and Engineering Huaqiao University Xiamen China

In this paper, a downlink cell-free Massive MIMO system (CF-M-MIMO-S) is considered. The CF-M-MIMO-S is a distributed M-MIMO-S, where access points (APs) with very great quantity of antennas, and a much smaller number of independent users are distributed randomly. Firstly, an approximate expression for the capacity with perfect channel state information and conjugate beamforming scheme is derived. Secondly, an energy-efficient (EE) resource allocation strategy is advanced, which is aim to maximize system EE. Specifically, the power consumption include transmitting power, calculation power and circuit power. Simulation results indicate that the throughput of derived approximate expression is very close to theoretical value. It is also demonstrated The effectiveness of proposed algorithm and the trade-off between EE and the quantity of Aps is, meanwhile, the performance of throughput of the proposed algorithm is very well.

关键词： Signal processing Communication systems

来源：评论

学校读者我要写书评

暂无评论

Improvements of Acoustic Features for Speech Separation

Improvements of Acoustic Features for Speech Separation

引用

2016联合国际信息技术、机械与电子工程国际会议

作者： Lujun Li Chuxiong Qin dan Qu China National Digital Switching System Engineering & Technological R&D Center

ISBN: (纸本)9781510830028

Acoustic features chosen from the input utterances play crucial roles in speech separation. In this paper, we propose a novel complementary feature approach that performs speech separation by combining five promising features, including Gammatone filterbank power spectra(GF) and multi-resolution cochleagram(MrCG) proposed recently especially for speech separation, as a super-vector fed into deep neural network(dNN). Additionally, based on the complementary features, we do experiments with two dNN training strategies, which are restricted Boltzmann machine(rBM) pre-training and dropout combined with rectified Linear Units(re LU), to optimize the performance of dNN. The experiment results, obtained in IEEE and TIMIT corpora using four different noises at low SNr levels of 0d B and-5d B, indicate that complementary features and rBM model improve all evaluation metrics. By contrast, dropout combined with re LU system specializes in noise suppression and objective intelligibility more.

关键词： speech separation dNN complementary features rBM pre-training dropout

来源：评论

学校读者我要写书评

暂无评论

Improved Propagator Method for Joint Angle and doppler Estimation Based on Structured Least Squares

Improved Propagator Method for Joint Angle and Doppler Estim...

引用

2016 8th IEEE International Conference on Communication Software and Networks(ICCSN 2016)

作者： Likai Guo Ying Wu China National Digital Switching System Engineering & Technological R&D Center

A new propagator method for joint angle and doppler estimation based on structured least squares(SLS)is *** defining a new propagator matrix the proposed approach reduces the loss of array *** addition,SLS which will take the specific relationship between two parts of the equation into account is utilized to enhance the estimation performance when solving the rotational invariance matrix *** results are provided verifying the effectiveness of the proposed method.

关键词： array singnal processing joint angle and doppler estimation Structured Least Squares(SLS)

来源：评论

学校读者我要写书评

暂无评论

Cooperation incentive mechanism for selfish users based on trust degree

Cooperation incentive mechanism for selfish users based on t...

引用

International Conference on Information Science and technology (ICIST)

作者： Wen Wang Kaizhi Huang Yi Zou China National Digital Switching System Engineering Technological R&D Center Zhengzhou

In multiuser networks, selfish users refuse to provide other users with their own energy and computing resources. In order to encourage selfish users to offer their resources, a cooperation incentive mechanism based on users trust degree evaluation is proposed. The mechanism helps relays to decide whether to participate in the cooperation or not by comparing trust value. Selfish users with lower trust value will be rejected on higher probability, while cooperation can improve trust value and their own communication security. Several experiments demonstrate the effectiveness of the proposed scheme in this paper. Selfish users actively participate in the cooperation comparing situations without encouragement. At the same time, the communication quality of the users is close to the cooperation with selfless relays.

关键词： decision support systems

来源：评论

学校读者我要写书评

暂无评论

Image segmentation based on local Chan-Vese model optimized by max-flow algorithm

Image segmentation based on local Chan-Vese model optimized ...

引用

ACIS International Conference on Software engineering, Artificial Intelligence, Networking, and Parallel/distributed Computing (SNPd)

作者： Zhongguo Li Lei Zeng Ti Wang Jian Chen Yan Bin National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

Image segmentation can be used in non-destructive testing, tracking and recognition. Level set method for image segmentation has poor performance on efficiency. In this paper, we propose to use max-flow algorithm to optimize a locally improved Chan-Vese model for image segmentation in the presence of intensity inhomogeneity. The energy function of local Chan-Vese model is introduced firstly. This model consists of global term, local term and penalty term and the local term contributes the segmentation for images with intensity inhomogeneity. Then, we convert this energy function to the frame of Graph Cut whose energy function can be efficiently minimized by max-flow algorithm. As a result, the process of optimization of local Chan-Vese model can be accelerated by using max-flow algorithm. The experiments demonstrate that the proposed method can achieve satisfactory segmentation for images with intensity inhomogeneity as well as very high efficiency.

关键词： Mathematical model Image segmentation Algorithm design and analysis Nonhomogeneous media Image edge detection Computational modeling Level set

来源：评论

学校读者我要写书评

暂无评论

Single-trial ErP detecting for emotion recognition

Single-trial ERP detecting for emotion recognition

引用

ACIS International Conference on Software engineering, Artificial Intelligence, Networking, and Parallel/distributed Computing (SNPd)

作者： Jingfang Jiang Ying Zeng Li Tong Chi Zhang Bin Yan National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

Emotion recognition, as an important part of human-computer interaction, has been extensively researched. Various studies have already verified the relationship between emotion and the event-related potentials (ErPs). In this paper, a new methodology for emotion recognition is investigated by detecting single-trial ErPs related to some specific level of emotions. First, a spatial filter is constructed to estimate the ErP components. Then the most discriminative spatial and temporal features of the entire ErP waveform are extracted with linear discriminant analysis. The performance of this method is tested by classifying the emotional valence on three levels, the extremely negative, the moderately negative and the neutral, with the support vector machine (SVM). The result shows that the proposed method is effective.

关键词： Emotion recognition Spatial filters Electroencephalography Classification algorithms Support vector machines Covariance matrices Training

来源：评论

学校读者我要写书评

暂无评论

An intensive security architecture with multi-controller for SdN

An intensive security architecture with multi-controller for...

引用

IEEE Conference on Computer Communications Workshops, INFOCOM Wksps

作者： Chao Qi Jiangxing Wu Hongchao Hu Guozhen Cheng Wenyan Liu Jianjian Ai Chao Yang National Digital Switching System Engineering & Technological R&D Center Zhengzhou Henan China

ISBN: (纸本)9781467399562

Modifying flow rule attack is a type of attack against controllers in SdN, leading to severe influence on network. In this paper, we propose Mcad-SA, an aware decision-making security architecture with multi-controller, to deal with it. It schedules the controllers in a dynamic and random way and adopts the vote results from the majority of controllers to determine valid flow rules. Theory analysis proves its validity.

关键词： Security Switches Transponders decision making robustness Computer architecture

来源：评论

学校读者我要写书评

暂无评论

Closed-form energy efficient joint power allocation for dual-hop massive MIMO relaying systems

Closed-form energy efficient joint power allocation for dual...

引用

IEEE International Symposium on Intelligent Signal Processing and Communication systems (ISPACS)

作者： Yi Wang Yuhan Wang Songwei Zhang Pengge Ma Shaochuan Yang Baofeng Ji Kang Song Chunguo Li School of Electronics and Communication Engineering Zhengzhou University of Aeronautics Zhengzhou China China National Digital Switching System Engineering & Technological R&D Center Zhengzhou China International Education College Henan University Kaifeng China Electronic & Information Engineering College Henan University of Science and Technology Luoyang China School of Electronic and Information Engineering Qingdao University Qingdao China School of Information Science and Engineering Southeast University Nanjing China

This paper investigates the joint power allocation problem for a three-node massive MIMO relaying system with maximum ratio combining/maximum ratio transmission (MrC/MrT) precoding strategy. Our goal is to pursuit the energy efficiency (EE) maximization while taking a quality-of-service (QoS) requirement into account by optimizing the source-relay transmit power simultaneously. To handle the EE based problem, we first derive a closed-form expression of the involved spectral efficiency (SE) by leveraging the tools of determinate equivalent approximation technique. Then, the optimal power solutions at the source and the relay are deduced in analytical forms by exploring the Lagrangian dual technology and the Lambert W function. What's more, one can find that the optimal power values at the relay and the source satisfy a specific ratio, which is determined by the system parameters and the large-scale fading factors of the two-hop channels. Numerical results illustrate the performance advantages of our developed power allocation method.

关键词： Signal processing Communication systems

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共57页 << < 22 23 24 25 26 27 28 29 30 31 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：