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浏览/检索结果: 共14条，第1-10条 帮助

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Hierarchical Attention Networks for Fact-based Visual Question Answering 期刊论文  OAI收割
MULTIMEDIA TOOLS AND APPLICATIONS, 2023, 页码: 18
作者:  Yao, Haibo;  Luo, Yongkang;  Zhang, Zhi;  Yang, Jianhang
  |  收藏  |  浏览/下载：10/0  |  提交时间：2023/11/17
Knowledge structure driven prototype learning and verification for fact checking 期刊论文  OAI收割
KNOWLEDGE-BASED SYSTEMS, KNOWLEDGE-BASED SYSTEMS, 2022, 2022, 卷号: 238, 238, 页码: 10, 10
作者:  Wang, Shuai;  Mao, Wenji;  Wei, Penghui;  Zeng, Daniel D.
  |  收藏  |  浏览/下载：35/0  |  提交时间：2022/06/10
Fact-Driven Abstractive Summarization by Utilizing Multi-Granular Multi-Relational Knowledge 期刊论文  OAI收割
IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, 2022, 卷号: 30, 页码: 1665-1678
作者:  Mao, Qianren;  Li, Jianxin;  Peng, Hao;  He, Shizhu;  Wang, Lihong
  |  收藏  |  浏览/下载：39/0  |  提交时间：2022/07/25
Modeling Inter-Claim Interactions for Verifying Multiple Claims 会议论文  OAI收割
线上, 2021年11月
作者:  Wang S(王帅);  Mao WJ(毛文吉)
  |  收藏  |  浏览/下载：26/0  |  提交时间：2022/07/01
A KG-based Enhancement Framework for Fact Checking Using Category Information 会议论文  OAI收割
线上, 2020年11月
作者:  Wang S(王帅);  Wang L(王磊);  Mao WJ(毛文吉)
  |  收藏  |  浏览/下载：17/0  |  提交时间：2022/07/01
Efficacy and safety of duloxetine in Chinese breast cancer patients with paclitaxel-induced peripheral neuropathy 期刊论文  OAI收割
CHINESE JOURNAL OF CANCER RESEARCH, 2017, 卷号: 29
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  |  收藏  |  浏览/下载：17/0  |  提交时间：2020/10/26
Atad2 is a generalist facilitator of chromatin dynamics in embryonic stem cells 期刊论文  OAI收割
JOURNAL OF MOLECULAR CELL BIOLOGY, 2016, 卷号: 8, 期号: 4, 页码: 349-362
作者:  Morozumi, Yuichi;  Boussouar, Faycal;  Tan, Minjia;  Chaikuad, Apirat;  Jamshidikia, Mahya
  |  收藏  |  浏览/下载：45/0  |  提交时间：2019/01/08
Energy transfer in Y3Al5O12:Ce 3, Pr3+ and CaMoO4:Sm3, Eu 3 phosphors (EI CONFERENCE) 会议论文  OAI收割
作者:  Wang L.;  Wang X.-J.;  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：38/0  |  提交时间：2013/03/25
Non-radiative energy transfers (ET) from Ce3 to Pr3+ in Y3Al5O12:Ce3  Pr3+ and from Sm3 to Eu3 in CaMoO4:Sm3  Eu3 are studied based on photoluminescence spectroscopy and fluorescence decay patterns. The result indicates an electric dipoledipole interaction that governs ET in the LED phosphors. For Ce3 concentration of 0.01 in YAG:Ce3  Pr3+  the rate constant and critical distance are evaluated to be 4.510-36 cm 6 s-1 and 0.81 nm  respectively. An increase in the red emission line of Pr3+ relative to the yellow emission band of Ce 3  on increasing Ce3 concentration is observed. This behavior is attributed to the increase of spectral overlap integrals between Ce3 emission and Pr3+ excitation due to the fact that the yellow band shifts to the red spectral side with increasing Ce3 concentration. In CaMoO4:Sm3  Eu3  Sm 3Eu3 transfer occurs from 4G5/2 of Sm3 to 5D0 of Eu3. The rate constant of 8.510-40 cm6 s-1 and the critical transfer distance of 0.89 nm are evaluated. 2010 Elsevier B.V. All rights reserved.  
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu S.; Yan Y.; Xu K.; Jin G.
收藏  |  浏览/下载：48/0  |  提交时间：2013/03/25
With the development of aerospace remote sensing technology  the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures  the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera  the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera  the compensation method of image motion to space camera is researched. First  the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second  the system adopts 80C31 as controller of drift angle  and adopts stepping motor for actuators  and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced  and it achieve the closed-loop control of the drift angle position. At the last  this paper analyses the transmission precision of the mechanism. Through the experiment  we measured the actual precision of the image motion compensation mechanism  and compared with the theoretical analysis. There are two major contributions in this paper. First  the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism  it will bring adverse effects for the precision and stiffness of mechanism. For this problem  This paper designed a image motion compensation that have some advantages such as small size  light weight at the same time  high precision  stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second  the traditional mechanism control need to corrected  fitting and iterative for the control formula of mechanism. Only in this way  we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting  It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5  -4  -3  -2  -1  0  +1  +2  +3  +4  +4 as the expectation value of the imaginary drift angle  we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'  and it can achieve the high-precision image motion compensation. 2011 SPIE.  
Effect of gimbal point displacement on optical axis pointing precision in an image seeker (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者:  Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载：39/0  |  提交时间：2013/03/25
A concentric glass spherical dome was usually chosen as the transparent window mounted in front of the optical lens in an image seeker. However  optical ray had to change its direction when propagating through the dome due to refraction unless passing through the center of the dome  which demanded gimbal point coincide with the center of the dome exactly. In fact  gimbal point displacement could not be eliminating due to fabrication  assembly and vibration  therefore the optical axis pointing error generated. In this paper  the effect of gimbal point displacement on optical axis pointing precision in an image seeker was analyzed  and the theoretical expression of the optical axis pointing error was derived based on geometric optics  and the error dynamics was explored by numerical. Take a visible light image seeker as a case  the thickness of concentric glass spherical dome was 8mm and the inner radius was 72mm  and the optical axis pointing errors varying dynamically with the look angle and the gimbal point displacement were shown in graph. When the gimbal displacement was 0.11mm  the maximum optical axis pointing error was 0.054mrad that is equal to the instantaneous field of view (IFOV) corresponding to the camera system whose focal length was 120mm and pixel size was 6.5m. Furthermore  with the gimbal displacement increasing  the optical axis pointing error increased linearly. The analyzed results provided a theoretical basis for the displacement range  which had to be limited strictly in the gimbal design process. 2011 IEEE.