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

1,387 篇 期刊文献
311 篇 会议
7 册 图书

馆藏范围

1,705 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

1,284 篇 理学
- 769 篇 物理学
- 419 篇 数学
- 167 篇 统计学（可授理学、...
- 124 篇 生物学
- 97 篇 化学
- 84 篇 系统科学
- 75 篇 地球物理学
- 34 篇 天文学
874 篇 工学
- 350 篇 计算机科学与技术...
- 275 篇 软件工程
- 144 篇 核科学与技术
- 109 篇 电子科学与技术（可...
- 103 篇 电气工程
- 100 篇 控制科学与工程
- 84 篇 信息与通信工程
- 83 篇 光学工程
- 76 篇 生物工程
- 75 篇 生物医学工程（可授...
- 63 篇 材料科学与工程（可...
- 61 篇 化学工程与技术
- 57 篇 力学（可授工学、理...
- 44 篇 动力工程及工程热...
- 32 篇 仪器科学与技术
- 31 篇 机械工程
- 28 篇 土木工程
112 篇 管理学
- 58 篇 管理科学与工程(可...
- 49 篇 图书情报与档案管...
- 31 篇 工商管理
71 篇 医学
- 59 篇 临床医学
- 45 篇 基础医学(可授医学...
35 篇 农学
28 篇 法学
15 篇 教育学
11 篇 经济学
2 篇 文学
1 篇 艺术学

主题

70 篇 hadron colliders
61 篇 higgs bosons
47 篇 proton-proton in...
45 篇 relativistic hea...
35 篇 large hadron col...
35 篇 standard model (...
29 篇 collisions (nucl...
29 篇 nuclear counters
27 篇 mathematics
26 篇 hadron-hadron in...
26 篇 supersymmetric m...
25 篇 computer science
24 篇 cosmological par...
24 篇 cosmology
24 篇 particle product...
24 篇 top quark
24 篇 quarks
24 篇 quark & gluon je...
23 篇 hadron-hadron sc...
23 篇 machine learning

机构

409 篇 faculty of scien...
409 篇 department for p...
395 篇 kirchhoff-instit...
394 篇 department of ph...
385 篇 department of ph...
384 篇 department of ph...
374 篇 institute of phy...
363 篇 fakultät für phy...
363 篇 institute of phy...
349 篇 dipartimento di ...
346 篇 instituto de fís...
308 篇 nikhef national ...
307 篇 department of ph...
306 篇 department of ph...
289 篇 department of ph...
279 篇 department of ph...
277 篇 graduate school ...
276 篇 department of ph...
267 篇 ictp trieste
263 篇 school of physic...

作者

336 篇 c. alexa
336 篇 g. bella
336 篇 d. calvet
336 篇 c. amelung
335 篇 g. spigo
334 篇 j. m. izen
334 篇 j. strandberg
332 篇 f. siegert
324 篇 r. ströhmer
324 篇 m. rijssenbeek
320 篇 s. jin
316 篇 g. gaudio
313 篇 s. mohapatra
307 篇 y. tayalati
306 篇 s. guindon
305 篇 a. kaczmarska
301 篇 j. schaarschmidt
298 篇 a. d. pilkington
295 篇 m. klein
294 篇 l. chevalier

语言

1,646 篇 英文
54 篇 其他
2 篇 法文
2 篇 中文

检索条件"机构=Program in Computer Science and Division of Applied Mathematics"

共 1705 条记录，以下是1581-1590 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：

Combining top-down and bottom-up segmentation

Combining top-down and bottom-up segmentation

引用

2004 IEEE computer Society Conference on computer Vision and Pattern Recognition Workshops, CVPRW 2004

作者： Borenstein, Eran Sharon, Eitan Ullman, Shimon Faculty of Mathematics and Computer Science Weizmann Institute of Science Rehovot76100 Israel Division of Applied Mathematics Brown University ProvidenceRI02912 United States

In this work we show how to combine bottom-up and top-down approaches into a single figure-ground segmentation process. This process provides accurate delineation of object boundaries that cannot be achieved by either the top-down or bottom-up approach alone. The top-down approach uses object representation learned from examples to detect an object in a given input image and provide an approximation to its figure-ground segmentation. The bottom-up approach uses image-based criteria to define coherent groups of pixels that are likely to belong together to either the figure or the background part. The combination provides a final segmentation that draws on the relative merits of both approaches: The result is as close as possible to the top-down approximation, but is also constrained by the bottom-up process to be consistent with significant image discontinuities. We construct a global cost function that represents these top-down and bottom-up requirements. We then show how the global minimum of this function can be efficiently found by applying the sum-product algorithm. This algorithm also provides a confidence map that can be used to identify image regions where additional top-down or bottom-up information may further improve the segmentation. Our experiments show that the results derived from the algorithm are superior to results given by a pure top-down or pure bottom-up approach. The scheme has broad applicability, enabling the combined use of a range of existing bottom-up and top-down segmentations. © 2004 IEEE.

关键词： Cost functions

来源：评论

学校读者我要写书评

暂无评论

Combining Top-Down and Bottom-Up Segmentation

Combining Top-Down and Bottom-Up Segmentation

引用

IEEE computer Society Conference on computer Vision and Pattern Recognition Workshops (CVPRW)

作者： E. Borenstein E. Sharon S. Ullman Faculty of Mathematics and Computer Science Weizmann Institute of Science Rehovot Israel Division of Applied Mathematics Brown University Providence RI USA

关键词： Image segmentation mathematics Object detection Pixel computer science Shape Cost function Sum product algorithm Laboratories Humans

来源：评论

学校读者我要写书评

暂无评论

Closed-loop neural control of cursor motion using a Kalman filter

Closed-loop neural control of cursor motion using a Kalman f...

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： W. Wu A. Shaikhouni J.R. Donoghue M.J. Black Division of Applied Mathematics Brown University Providence RI USA Department of Neuroscience Brown University Providence RI USA Department of Computer Science Brown University Providence RI USA

Recently, we proposed a Kalman filter method to model the probabilistic relationship between neural firing in motor cortex and hand kinematics. In this paper, we demonstrate on-line, closed-loop, neural control of cursor motion using the Kalman filter. In this task a monkey moves a cursor on a computer monitor using either a manipulandum or their neural activity recorded with a chronically implanted micro-electrode array. A number of advantages of the Kalman filter were explored during the on-line tasks and we found that the Kalman filter had superior performance to previously reported linear regression methods. While the results suggest the applicability of the Kalman filter for neural prosthesis applications, we observed the decoded cursor position was noisier under brain control as compared with manual control using the manipulandum. To smooth the cursor motion without decreasing accuracy we propose a method that smoothes the neural firing rates. This smoothing method is described and its validity is quantitatively evaluated with recorded data.

关键词： Motion control Kalman filters Decoding Linear regression Prosthetics Human factors Kinematics Smoothing methods Neurofeedback mathematics

来源：评论

学校读者我要写书评

暂无评论

Application of genetic algorithm/k-nearest neighbor method to the classification of renal cell carcinoma

Application of genetic algorithm/k-nearest neighbor method t...

引用

Proceedings of the IEEE Computational Systems Bioinformatics Conference, CSB

作者： Dongqing Liu Ting Shi J.A. DiDonato J.D. Carpten Jianping Zhu Zhong-Hui Duan Department of Computer Science University of Akron Akron OH USA Department of Cancer Biology Cleveland Clinic Foundation Cleveland OH USA Genetic Basis of Human Disease Research Division Translational Genomics Research Institute Phoenix Tempe AZ USA Department of Theoretical and Applied Mathematics University of Akron Akron OH USA

In this study, we use a genetic algorithm and k-nearest neighbor method to classify two subtypes of renal cell carcinoma using a set of microarray gene expression profiles of nine samples (three clear cell tumors and six papillary tumors). We show that the genetic algorithm/k-nearest neighbor method can be efficiently used in identifying a panel of discriminator genes. To test the robustness of the algorithm, we perform a bootstrapping analysis that removes one sample from the data set at a time and uses the remaining samples for gene selection. We show that each of the removed samples can be classified correctly. We also analyze the stability of the algorithm and the sensitivity of the algorithm with respect to different samples.

关键词： Genetic algorithms Biological cells Network-on-a-chip Cells (biology) Genetic mutations Bioinformatics Gene expression Neoplasms Testing Robustness

来源：评论

学校读者我要写书评

暂无评论

On the queueing behavior of multiple first-order autoregressive sources

On the queueing behavior of multiple first-order autoregress...

引用

IEEE Conference and Exhibition on Global Telecommunications (GLOBECOM)

作者： Gang Uk Hwan K. Sohraby Div. of Appl. Math. Korea Adv. Inst. of Sci. & Technol. Taejeon South Korea School of Computing and Engineering Department of Computer Science and Electrical Engineering University of Missouri Kansas City Kansas City MO USA Division of Applied Mathematics Korea Advanced Institute of Science and Technology Yuseong-gu Taejeon South Korea

It is generally believed that the queueing behavior of an arrival process is most sensitive to its first and second order statistics. In this paper, we show that this is not generally true. We consider the queueing behavior of two classes of sources. The first class is the superposition of multiple discrete autoregressive sources of order 1 (referred to as DAR(1) sources), and the second class is a single DAR(1) source having the same first and second order statistics as the superposed source. In particular, we show that in the homogeneous case, the mean queue lengths of the two models are identical, but the queue length variances of the two models are significantly different depending on the correlation of individual sources.

关键词： Random variables Cities and towns Statistics Mathematical model Equations mathematics computer science Teleconferencing Traffic control Steady-state

来源：评论

学校读者我要写书评

暂无评论

The advantage of balanced-allocation routing for ATM networks

The advantage of balanced-allocation routing for ATM network...

引用

IEEE International Symposium on Information Theory

作者： A. Anagnostopoulos I. Kontoyiannis E. Upfal Computer Science Department Brown University Providence RI USA Division of Applied Mathematics and Department of Computer Science Brown University Providence RI USA

We compare the long-term, steady-state performance of a variant of the standard dynamic alternative routing (DAR) technique commonly used in telephone and ATM networks, to the performance of a path-selection algorithm based on the "balanced-allocation" principle; we refer to this new algorithm as the balanced dynamic alternative routing (BDAR) algorithm. We show that, at the expense of a minor increase in routing overhead, the BDAR algorithm gives a substantial improvement in network performance, in terms both of network congestion and of bandwidth requirement.

关键词： Bandwidth Asynchronous transfer mode computer science Electronic mail Telephony Routing protocols mathematics Steady-state Telecommunication congestion control Circuits

来源：评论

学校读者我要写书评

暂无评论

A quantitative comparison of linear and non-linear models of motor cortical activity for the encoding and decoding of arm motions 1

A quantitative comparison of linear and non-linear models of...

引用

1st International IEEE EMBS Conference on Neural Engineering

作者： Gao, Yun Black, Michael J. Bienenstock, Elie Wu, Wei Donoghue, John P. Division of Applied Mathematics Brown University ProvidenceRI02912 United States Dept. of Computer Science Brown University Box 1910 ProvidenceRI02912 United States Dept. of Neuroscience Brown University ProvidenceRI02912 United States

ISBN: (纸本)0780375793

Many models have been proposed for the motor cortical encoding of arm motion. In particular, recent work has shown that simple linear models can be used to approximate the firing rates of a population of cells in primary motor cortex as a function of the position, velocity, and acceleration of the hand. Here we perform a systematic study of these linear models and of various non-linear generalizations. Specifically we consider linear Gaussian models, Generalized Linear Models (GLM), and Generalized Additive Models (GAM) of neural encoding. We evaluate their ability to represent the relationship between hand motion and neural activity, by looking at the likelihood of observed patterns of neural firing in a test data set and by evaluating the decoding performance of the different models (i.e. in terms of the error in reconstructing hand position from firing rates). To provide a level playing field for evaluating the decoding performance, we test all the models using a general recursive Bayesian estimator known as the particle filter, thus isolating the effect of the encoding model on reconstruction accuracy. © 2003 IEEE.

关键词： Encoding (symbols)

来源：评论

学校读者我要写书评

暂无评论

Neural decoding of cursor motion using a Kalman filter 15

Neural decoding of cursor motion using a Kalman filter

引用

16th Annual Neural Information Processing Systems Conference, NIPS 2002

作者： Wu, W. Black, M.J. Gao, Y. Bienenstock, E. Serruya, M. Shaikhouni, A. Donoghue, J.P. Division of Applied Mathematics Brown University Providence RI 02912 United States Dept. of Computer Science Brown University Providence RI 02912 United States Dept. of Neuroscience Brown University Providence RI 02912 United States Division of Biology and Medicine Brown University Providence RI 02912 United States

ISBN: (纸本)0262025507

The direct neural control of external devices such as computer displays or prosthetic limbs requires the accurate decoding of neural activity representing continuous movement. We develop a real-time control system using the spiking activity of approximately 40 neurons recorded with an electrode array implanted in the arm area of primary motor cortex. In contrast to previous work, we develop a control-theoretic approach that explicitly models the motion of the hand and the probabilistic relationship between this motion and the mean firing rates of the cells in 70ms bins. We focus on a realistic cursor control task in which the subject must move a cursor to "hit" randomly placed targets on a computer monitor. Encoding and decoding of the neural data is achieved with a Kalman filter which has a number of advantages over previous linear filtering techniques. In particular, the Kalman filter reconstructions of hand trajectories in off-line experiments are more accurate than previously reported results and the model provides insights into the nature of the neural coding of movement.

关键词： Kalman filters

来源：评论

学校读者我要写书评

暂无评论

A switching Kalman filter model for the motor cortical coding of hand motion

A switching Kalman filter model for the motor cortical codin...

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Wei Wu M.J. Black D. Mumford Yun Gao E. Bienenstock J.P. Donoghue Division of Applied Mathematics Brown University Providence RI Dept. of Computer Science Brown University Providence RI USA Division of Applied Mathematics Brown University Providence RI USA Dept. of Neuroscience Brown University Providence RI USA

We present a switching Kalman filter model (SKFM) for the real-time inference of hand kinematics from a population of motor cortical neurons. First we model the probability of the firing rates of the population at a particular time instant as a Gaussian mixture where the mean of each Gaussian is some linear function of the hand kinematics. This mixture contains a "hidden state", or weight, that assigns a probability to each linear, Gaussian, term in the mixture. We then model the evolution of this hidden state over time as a Markov chain. The expectation-maximization (EM) algorithm is used to fit this mixture model to training data that consists of measured hand kinematics (position, velocity, acceleration) and the firing rates of 42 units recorded with a chronically implanted multi-electrode array. Decoding of neural data from a separate test set is achieved using the switching Kaiman filter (SKF) algorithm. Quantitative results show that the SKFM outperforms the traditional linear Gaussian model in the decoding of hand movement. These results suggest that the SKFM provides a real-time decoding algorithm that may be appropriate for neural prosthesis applications.

关键词： Kinematics Decoding Neurons Training data Position measurement Velocity measurement Accelerometers Acceleration Testing Filters

来源：评论

学校读者我要写书评

暂无评论

A quantitative comparison of linear and non-linear models of motor cortical activity for the encoding and decoding of arm motions

A quantitative comparison of linear and non-linear models of...

引用

International IEEE/EMBS Conference on Neural Engineering, CNE

作者： Yun Gao M.J. Black E. Bienenstock Wei Wu J.P. Donoghue Division of Applied Mathematics Brown University Providence RI USA Department of Computer Science Brown University Providence RI USA Division of Applied Mathematics Department of Neuroscience Brown University Providence RI USA Department of Neuroscience Brown University Providence RI USA

关键词： Encoding Decoding Brain modeling Bayesian methods Acceleration Ear Testing computer displays Linearity mathematics

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171页 << < 155 156 157 158 159 160 161 162 163 164 > >>

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：