中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Efficiency and Effect Evaluation of Remote Biopsy Sampling on Indo-Pacific Humpback Dolphins (Sousa chinensis) in the Northern South China Sea 期刊论文  OAI收割
AQUATIC MAMMALS, 2019, 卷号: 45, 期号: 3, 页码: 311-319
作者:  
Liu, Mingzhong;  Li, Songhai;  Liu, Mingming;  Li, Kuan;  Zhang, Peijun
  |  收藏  |  浏览/下载:59/0  |  提交时间:2019/07/08
Application of an incomplete landslide inventory, logistic regression model and its validation for landslide susceptibility mapping related to the May 12, 2008 Wenchuan earthquake of China 期刊论文  OAI收割
NATURAL HAZARDS, 2013, 卷号: 68, 期号: 2, 页码: 883-900
作者:  
Xu, Chong;  Xu, Xiwei;  Dai, Fuchu;  Wu, Zhide;  He, Honglin
  |  收藏  |  浏览/下载:23/0  |  提交时间:2018/09/26
Application of an incomplete landslide inventory, logistic regression model and its validation for landslide susceptibility mapping related to the May 12, 2008 Wenchuan earthquake of China 期刊论文  OAI收割
NATURAL HAZARDS, 2013, 卷号: 68, 期号: 2, 页码: 883-900
作者:  
Xu, Chong;  Xu, Xiwei;  Dai, Fuchu
  |  收藏  |  浏览/下载:28/0  |  提交时间:2018/09/26
An efficient discrete particle swarm algorithm for task assignment problems (EI CONFERENCE) 会议论文  OAI收割
2009 IEEE International Conference on Granular Computing, GRC 2009, August 17, 2009 - August 19, 2009, Nanchang, China
作者:  
Wang C.
收藏  |  浏览/下载:14/0  |  提交时间:2013/03/25
Task Assignment Problems (TAPs) in distributed computer system are general NP-hard and usually modeled as integer programming discrete problems. Many algorithms are proposed to resolve those problems. Discrete particle swarm algorithm (DPS) is a newly developed method to solve constraint satisfaction problem (CSP) which has advantage on search capacity and can find more solutions. We proposed an improved DPS to solve TAP in this paper. DPS has a special operator namely coefficient multiplying speed  which is designed for CSP but does not exist in other discrete problems. Thus we redefined a coefficient multiplying speed operator with probability selection. We analyzed the speed and position updating formula then we derived a refined position updating formula. Several experiments are carried out to test our DPS. Experimental results show that our algorithm has more efficient search capacity  higher success rate  less running time and more robust.  
Study of unequal error protection method based on JPEG2000 for surveyingmapping image (EI CONFERENCE) 会议论文  OAI收割
International Conference on Computer Science and Software Engineering, CSSE 2008, December 12, 2008 - December 14, 2008, Wuhan, Hubei, China
Yao Q.; Cao M.
收藏  |  浏览/下载:163/0  |  提交时间:2013/03/25
On aviation mapping  compression image maybe not decode because of wireless transmission interference. UEP(Unequal Error Protection) scheme is put forward about layer and block structure of JPEG2000 image compression method  flexibly enhances local reconfigurable image's quality which is in favor of identifier in the region of interest. 2008 IEEE.  and realizes three degrees UEP of data block  data header  image data via various degrees correction-coding under the condition of obstruct  naked and shade. BCH  RS and Hamming coding are simulated  and image decoding success rate and image's quality are analyzed according to different coding and ROI (Region of Interest) in the Gaussian white noise model and rayleigh fading model. Results shows that the method we putted forward roughly improves decoding success rate  at the same time  almost not increasing bandwidth