This thesis focuses on the application of neural network prediction theory in scientific data mining from three aspects : theory , algorithm and application 本文从理论、算法及应用三个层面讨论了神经网络预测理论在科学数据挖掘中的应用。
Abstract : the test results of fly ash concrete were introduced . the optimum content of fly ash in concrete was determined 文摘:介绍了粉煤灰砼的试验成果及在工程应用中的最佳掺量、最佳超量系数，为粉煤灰砼在寒区堤防护坡中的应用提供了科学数据。
The spacecraft ' s fault - detection system came to the rescue once again , turning off nearly all operations and saving the science data from the encounter 飞船的错误监察系统再次起了作用：它几乎关闭了所有操作并将相遇的全部科学数据记录了下来。
With the development of the space technology , the amount of scientific data grows rapidly . an efficient and high speed space data link network is needed 随着空间科学任务的增加，需要处理的空间科学数据量激增，要求建立一个高速的空间数据连接网络。
The 3d reconstruction of medical image is the main area in medical dada 3d visualization , and is a important research branch in science data visualization too 医学图像的三维重建是医学数据三维可视化研究的主要内容，也是科学数据可视化研究的一个重要分支。
While scientists say they still need more scientific data , they suggest the regional and global impact of the haze will intensify over the next 30 years 尽管对脏雾的研究还需要更多的科学数据，但是科学家们认为这片亚洲脏雾对亚洲地区乃至全球的恶劣影响将会在今后的30年内逐渐恶化。
See regulation ( ec ) no 460 / 2004 of the european parliament and of the council of 10 march 2004 establishing theeuropean network and information security agency 参见刘闯、王正兴: 《美国全球变化数据共享的经历对我国公益性科学数据共享决策的启示》 ,载《地球科学进展》 2002年第1期第151 - 157页
In summer last year the chancellor , gordon brown , asked me to examine the economics of climate change , basing the analysis on sound science and the latest economic literature 去年夏天，财政部大臣戈登布朗曾要求我在全面分析科学数据和研究最新经济文献的基础上，研究气候变化的经济学原理。
In view of the shortage of both time and resources , it is essential that decision - making for conservation is made on a scientific basis , with priority species and habitats being clearly identified 由于时间及资源有限，有关方面必须根据科学数据制定保育决策，清楚鉴别及界定需要优先保护的物种与生境。
In the field of clustering , by comparing some clustering methods and analysing characteristic of science data , we propose an improved hierarchical clustering method synthetic idea of k - means method 在聚类方面,经过比较各种聚类算法和分析科学数据的特点,提出了结合k -平均思想的改进型系统聚类算法。
