中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [5]
计算技术研究所 [1]
新疆生态与地理研究所 [1]
上海药物研究所 [1]
软件研究所 [1]
采集方式
OAI收割 [9]
内容类型
会议论文 [7]
期刊论文 [2]
发表日期
2020 [1]
2012 [1]
2010 [2]
2009 [1]
2008 [1]
2006 [1]
更多
学科主题
筛选
浏览/检索结果:
共9条,第1-9条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
题名升序
题名降序
发表日期升序
发表日期降序
提交时间升序
提交时间降序
作者升序
作者降序
Bioactivity Prediction Based on Matched Molecular Pair and Matched Molecular Series Methods
期刊论文
OAI收割
CURRENT PHARMACEUTICAL DESIGN, 2020, 卷号: 26, 期号: 33, 页码: 4195-4205
作者:
Ding, Xiaoyu
;
Cui, Chen
;
Wang, Dingyan
;
Zhao, Jihui
;
Zheng, Mingyue
  |  
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2020/12/21
Matched molecular pair
matched molecular series
bioactivity prediction
SAR transfer
application domain
lead optimization
A simple and fast moving object segmentation based on H.264 compressed domain information (EI CONFERENCE)
会议论文
OAI收割
4th International Conference on Computational and Information Sciences, ICCIS 2012, August 17, 2012 - August 19, 2012, Chongqing, China
作者:
Chen X.
;
Chen X.
;
Chen X.
;
Sun L.
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2013/03/25
The paper presents a simple and fast approach for moving object segmentation based on H.264 compressed domain information for the application of indoor video surveillance with static camera. Due to the characteristics of indoor video surveillance
the proposed method of segmentation avoids complicated background model like Gaussian Mixture background model. On the contrary
it chooses some simple information like the type of Macroblock
etc.. Experimental results of several specific H.264 compressed video sequences demonstrate the good segmentation quality of the proposed approach. 2012 IEEE.
Analysis of a diffractive microlens using the finite-difference time-domain method (EI CONFERENCE)
会议论文
OAI收割
作者:
Liu Y.
;
Liu H.
;
Liu H.
;
Liu H.
;
Liu Y.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2013/03/25
The finite-difference time-domain (FDTD) method is used as rigorous electromagnetic analysis model to calculate the field for a diffractive microlens (DML). The FDTD is used for the entire solution rather than using a near- to far-field propagation method to obtain the far-field energy distribution
thus
all the results are vector based. We derived a formula to calculate the magnitude of electric field
which is time dependent and can be used to graphically show the light wave propagation and focusing process through a DML. Both the comparison and the integral methods are presented to obtain wave amplitude in full solution space
and the distribution of light energy behind a DML is illustrated based on the wave amplitude. The formula of diffractive efficiency of the DML is derived from a time-averaged Ponyting vector
which can indicate the propagation direction of light energy. Application of these formulations in the analysis of a DML example demonstrates the high accuracy and efficiency of our method. 2010 Society of Photo-Optical Instrumentation Engineers.
An information theoretic approach to model reduction based on frequency-domain Cross-Gramian information (EI CONFERENCE)
会议论文
OAI收割
2010 8th World Congress on Intelligent Control and Automation, WCICA 2010, July 7, 2010 - July 9, 2010, Jinan, China
作者:
Zhou J.
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2013/03/25
We focused our attention on model reduction for linear time invariant (LTI) continuous time systems with single input and single output (SISO). We analyzed the strongpoint and shortcoming of an information theoretic approach called minimum information loss method for model reduction. We explained relationships between the steady-state information entropy and controllability information for the Gaussian systems. The controllability
observability and Cross-Gramian information were analyzed in the time-domain. The frequency-domain Cross-Gramian information (FCGI) was defined based on Cross-Gramian matrix containing information associated with both controllability and observability. Furthermore
a valuable application of the frequency-domain Cross-Gramian information to model reduction (FCGMIL) was developed by using the concept and properties of frequency-domain Cross-Gramian information. The performance index of FCGMIL is to minimize the frequency-domain Cross-Gramian information loss caused by eliminating the state variables with weak contributions to Cross-Gramian information over some frequency band. Two numerical examples are illustrated to verify the efficiency of FCGMIL. 2010 IEEE.
Research on a scalable parallel data mining algorithm
会议论文
OAI收割
5th International Joint Conference on INC, IMS, and IDC, Seoul, Korea, Republic of, 2009
Wang
;
Jinlin1
;
2
;
Chen
;
Xi1
;
Zhou
;
Kefa1
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2011/08/23
Computational complexity - Computational efficiency - Information management - Parallel algorithms - Research - Semiconductor storage - Active field - Data mining algorithm - Domain of knowledge - Experimental verification - Hardware and software - Massive data - Network monitoring systems - Parallel data mining - Projection database - Real-world application - Sensor grids - Sequential patterns - Sequential-pattern mining - Spatial complexity - Streaming data
Central hole effect on Whispering-Gallery-Mode of triangular lattice photonic crystal microcavity (EI CONFERENCE)
会议论文
OAI收割
Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China
作者:
Zhang Y.
;
Wang L.
;
Wang L.
;
Wang L.
;
Wang Z.
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
Whispering-Gallery-Mode (WGM) photonic crystal microcavity is a kind of photonic crystal application and can potentially be used for miniaturized photonic devices
such as thresholdless lasers. In this paper we study the WGM of photonic crystal microcavities focusing on the so called H2 cavities which are formed by removing seven air holes. The WGM in these large-size cavities has some advantages compared with single defect WGM in the view of real device applications. We further add a central air hole in the cavity region to analyze the effect on WGM in the microcavity by finite difference time domain (FDTD) and plane wave expansion (PWE). It is found that the tolerance of WGM is large enough for the fabrication of electrical injection structure. 2008 SPIE.
A new approach for the removal of mixed noise based on wavelet transform (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Li Y.
收藏
  |  
浏览/下载:44/0
  |  
提交时间:2013/03/25
This paper proposed a new approach for the removal of mixed noise. There are many different ways in image denoising. Donoho et al have proposed a method for image de-noising by thresholding
ambiguity is often resulted in determining the correspondence of a modulus maximum to a singularity. In the light
and indeed
we combine the merits of the two techniques to form a new approach for the removal of mixed noise. At first
the application of their method to image denoising has been extremely successful. But the method of Donoho is based on the assumption that the type of noise is only additive Gaussian noise
we used wavelet singularity detection (WSD) technique to analyze singularities of signal and noise. According to the characteristic that wavelet transform modulus maxima of impulse noise rapidly decreases as the scale increases in wavelet domain
which is not successful for impulse noise. Mallat has also presented a method for signal denoising by discriminating the noise and the signal singularities through an analysis of their wavelet transform modulus maxima (WTMM). Nevertheless
it can be accurately located with multiscale space by going through dyadic orthogonal wavelet transform and removed. Furthermore the Gaussian noise is also removed through a level-dependent thresholding algorithm
the tracing of WTMM is not just tedious procedure computationally
algorithm. The experimental results demonstrate that the proposed method can effectively detect impulse noise and remove almost all of the noise while preserve image details very well.
a framework for domain-specific search engine: design pattern perspective
会议论文
OAI收割
IEEE International Conference on Systems, Man and Cybernetics (SMC 03), WASHINGTON, D.C., OCT 05-08,
Zhang JL
;
Qu WM
;
Du L
;
Sun YF
  |  
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2011/07/29
domain specific search engine
application framework
design pattern
Progress in the development of national knowledge infrastructure
期刊论文
OAI收割
JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY, 2002, 卷号: 17, 期号: 5, 页码: 523-534
作者:
Cao, CG
;
Feng, QZ
;
Gao, Y
;
Gu, F
;
Si, JX
  |  
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2019/12/16
national knowledge infrastructure
knowledge acquisition
domain-specific ontology
human-knowledge interface
knowledge application programming interface