中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共8条，第1-8条

帮助

条数/页：排序方式：
	Evaluation Method of Online Education Quality of E-Commerce Course in Higher Vocational Education Based on Machine Learning Model 期刊论文 OAI收割 Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST, 2024, 卷号: 544, 页码: 35-50 作者: Gu, Shanyu; Ning Ding; Yiwen Chen \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2024/02/19 Machine Learning Model Educational Data Structure Evaluation Index System PSO-SVM Model Vocational E-Commerce Course Online Education Quality Assessment
	Gas Station Recognition Method Based on Monitoring Data of Heavy-Duty Vehicles 期刊论文 OAI收割 ENERGIES, 2021, 卷号: 14 作者: Ding, Yan; Ji, Zhe; Liu, Peng; Wu, Zhiqiang; Li, Gang \| 收藏 \| 浏览/下载：62/0 \| 提交时间：2022/02/14 gas stations recognition oil quality evaluation heavy-duty vehicles DBSCAN clustering CART algorithm real-world data
	Robot automation grinding process for nuclear reactor coolant pump based on reverse engineering 期刊论文 OAI收割 International Journal of Advanced Manufacturing Technology, 2019, 卷号: 102, 期号: 1-4, 页码: 879-891 作者: Li L(李论); Zhao JB(赵吉宾); Zhang HY(张洪瑶) \| 收藏 \| 浏览/下载：68/0 \| 提交时间：2019/01/28 Automation grinding Industrial robot Point data simplification Trajectory planning Quality evaluation
	How to evaluate the reliability of regional input–output data? a case for china 期刊论文 iSwitch采集 Journal of economic structures, 2017, 卷号: 6, 期号: 1 作者: Zhao,Haoyang; Xu,Jian; Liu,Xinteng 收藏 \| 浏览/下载：85/0 \| 提交时间：2019/05/09 Data quality Quality evaluation China Regional io data
	An approach to quality validation of large-scale data from the Chinese Flash Flood Survey and Evaluation (CFFSE) 期刊论文 OAI收割 NATURAL HAZARDS, 2017, 卷号: 89, 期号: 2, 页码: 693-704 作者: Yuan, Ximin; Liu, Yesen; Huang, Yaohuan; Tian, Fuchang \| 收藏 \| 浏览/下载：32/0 \| 提交时间：2019/09/25 Flash flood Survey and evaluation Data quality validation DM-Moran model Spatial data mining
	元数据技术在城市可持续发展能力评估中的应用研究学位论文 OAI收割北京: 中国科学院大学, 2017 作者: 王韬 \| 收藏 \| 浏览/下载：38/0 \| 提交时间：2018/07/02 城市可持续发展能力评估元数据规范数据质量评价元数据管理系统 Urban Sustainable Development Capacity Assessment Metadata Specification Data Quality Evaluation Metadata Management Syste
	Efficient rate control technique for CCSDS image encoding (EI CONFERENCE) 会议论文 OAI收割 IEEE 2nd International Conference on Computing, Control and Industrial Engineering, CCIE 2011, August 20, 2011 - August 21, 2011, Wuhan, China Jin L. 收藏 \| 浏览/下载：95/0 \| 提交时间：2013/03/25 For the limitation of data transmission bandwidth and real time transmission demand generally image compression is required to implement the precise and flexible rate control algorithm. Rate control is an important issue in the image compression field. This paper considers the problem of rate allocation to each encoded segment for CCSDS image compression. One straightforward method is to allocate an equal amount of rate to each segment based on the average of the total number of compressed bytes. The obvious drawback of this method is that different segment will be reconstructed to different quality so the overall quality of the reconstructed image will not be optimized. For the shortage of the original rate control method as to improve the overall quality of the reconstructed image an improved rate control algorithm is proposed for CCSDS image encoding. The key component of the proposed rate control method is the appropriate rate allocation. Experiments on the test images show that the PSNR can be increased at about 0.3dB on average compared to the original algorithm. Therefore experimental results confirm the effectiveness of the proposed algorithm in terms of objective evaluation and the rate-distortion performance of the reconstructed image is improved. 2011 IEEE.
	Application of the attribute recognition method for the evaluation of spatial data quality - art. no. 642014 会议论文 OAI收割 Geoinformatics 2006: Geospatial Information Science, Bellingham Sun, Qinghui; Chi, Tianhe; Zhong, Dawei 收藏 \| 浏览/下载：25/0 \| 提交时间：2014/12/07 attribute mathematics spatial data quality evaluation of spatial data quality attribute recognition model quality evaluation model geographical information system