非线性最小二乘法用于估算指数时间模型。
Non-Linear Least Squares were used to estimate the exponential time model.
目的探索带有影响因素的疾病指数时间序列建模方法。
Objective To explore the methods of disease index time series models with influencing factors.
方法:采用黄瓜霜霉病病情指数时间序列从方法学的角度进行预测方法研究。
Methods Using the time series analysis of cucumber downy mildew disease, to explore the forecasting method from the Angle of methodology.
传统的基于有限域的离散对数问题因为可以使用指标计算方法而存在亚指数时间算法求解。
The classical discrete logarithm problem in finite prime fields can be solved in an expected time which is subexponential in the group size via the socalled index calculus method.
实际系统的计算结果表明,此算法的迭代收敛次数稳定,与系统规模关系不大,在求解大规模系统无功优化问题时,其性能优于具有指数时间复杂性的单纯性法。
The computation results of practical power systems show that the number of iterations of this algorithm is independent of system's size, and it is superior to simplex...
更大的问题是这么做花费的时间,消费者价格指数要滞后实际发生的一个月之后才出来,在动荡的年代这样实在是太慢了。
The larger problem, though, is the time it takes: the Consumer Price Index’s figures don’t come out until a month after the fact. In turbulent times, that’s too slow.
IT成本:非集成的企业中的不灵活性导致实现新业务需求的时间和成本呈指数上升。
It costs: the inflexibility in the non-integrated enterprise causes an exponential increase in time and cost to implement new business requirements.
只要修正这一偏差,三位经济学家显示,改进的巨无霸指数就可以很好地在年及年以上时间单位上预测汇率走势。
Once that is done, the three economists show that a reconstituted index is good at predicting real exchange rates over horizons of a year or more.
美国东部时间临近中午压力测试公布时,道琼斯工业平均指数小幅下挫,但是最终收盘于10424.62点,上涨102点。
The Dow Jones Industrial Average dropped shortly after test results were announced around noon Eastern Daylight Time, but ended the day up 102 points, to 10424.62.
研究员回顾了1970至2009年期间的9项研究,发现手术后体重和体质指数增加长达七年时间。
The researchers, who reviewed nine studies published between 1970 and 2009, found increased weight and body mass index (BMI) could be seen for up to seven years after the operation.
因此不足为奇,日经225指数在不到5年的时间内增长了2倍多,本土公司迎来了蓬勃发展的春天,债务利用也搞得如火如荼。
Not surprisingly, the Nikkei 225 stock index more than tripled in less than five years, companies blossomed and the use of debt skyrocketed.
紫外线指数越高,对皮肤和眼睛的损害危险就越大,并且产生危害的时间就更短。
The higher the UVI value, the greater the potential for damage to the skin and eye, and the less time it takes for harm to occur.
对String和StringBuffer来说,完成测评所需要的时间随着计划长度的增加呈指数级增长。
For both Strings and StringBuffers, the amount of time required to complete the benchmark rises exponentially as the plan length increases.
最被各方密切关注的数据之一是消费者价格指数(CPI),该数据预计于美东时间周三晚上九点公布。
One of the most closely watched figures will be the consumer-price index, expected to be released at 9 p.m. EST on Wednesday.
截止到纽约时间上午9点34分,标准普尔500指数继昨天下挫1.4%后,今天开盘下跌0.3%,至1117.62点。
The Standard &Poor’s 500 Index dropped 0.3 percent to 1, 117.62 at 9:34 a.m. in New York after sliding 1.4 percent yesterday.
清单2中的实现所需的时间比清单1短许多,清单2的运行时间为O (n),而清单1中的递归实现的运行时间是n的指数。
Listing 2's implementation runs in o (n) time. I won't prove this, but the running time of Listing 1's naive, recursive implementation is exponential in n.
服务器的可用性指数是指当前响应时间和最佳响应时间(没有Domino事务)的比率。
The server's availability index is derived from the ratio between the current response time and the response time in optimum conditions (with no Domino transactions).
而实际上,这个指数的股利收益在从那以后的五年时间内几乎翻倍。
In fact, the dividend income on the index has almost doubled in the five years since.
结果显示影响是呈指数级增长的;即当文档的数量达到80,000时,响应时间会呈指数级增长。
Results indicated an exponential growth pattern; that is, as the number of documents grew to 80,000, the increase in response time grew exponentially.
今年大部分时间的核心消费者物价指数稍有下降。
Core consumer prices have been falling slightly for most of this year.
由于OFHEO指数追踪了同所房子在重售或重新抵押时的价格,该指数比按时间段调查得到的指数更加精确。
The OFHEO index gives a more accurate picture than more timely series, because it tracks the value of the same houses when they are resold or remortgaged.
检查点是指数据库服务器在特定的时间点对磁盘上的页面和共享内存缓冲区中的页面进行同步。
A checkpoint refers to a point when the database server synchronizes the pages on disk with the pages in the shared-memory buffers.
去年的一段时间,新兴市场的摩根股价指数(MSCI)甚至超过发达世界,以多种较高的利润进行交易。
For part of last year, the MSCI emerging-markets index was even trading at a higher multiple of earnings than the index of rich-world shares.
去年的一段时间,新兴市场的摩根股价指数(MSCI)甚至超过发达世界,以多种较高的利润进行交易。
For part of last year, the MSCI emerging-markets index was even trading at a higher multiple of earnings than the index of rich-world shares.
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