empirical rule 中文意思是什麼
empirical rule
解釋
經驗定則-
An empirical analysis is made with the population data of the us cities to verify the theory and models developed in this paper, which will contribute to reconcile the apparent difference between the hierarchical step - like frequency distribution of city sizes suggested by central place theory and the smooth curve reflected by the work on the rank - size rule
多重zipf維數模型不僅可以有效地統一中心地的等級階梯與位序-規模法則反映的連續分佈，而且可以揭示城市體系演化的更多信息和隱含法則。以美國城市體系1998年的數據為實證對象，給出了城市規模分佈的多分維 -
In the topic 1, utilizing the natural lysimeters and drainage region in wudaogou station, based on expriment and imitation methods, frist the hydrology effect of drainage has been analyzed, and then the index of water logged farm drainage and suitable ground water level have been provided. on the theory of darcy rule and farm hydrodynamics, the standard and pattern and empirical formula of farm drainage system have been presented as well, and provide scientifically foundation for drainage planning
在農田排水技術研究中，利用五道溝實驗站地中蒸滲儀和排水試驗區，採用試驗法和動態模擬法，分析了排水工程的水文效應，提出了農田排漬標準和作物適宜的地下水位埋深，採用達西定律和農田水動力學原理，提出了農田排水系統的規格、布置方式及經驗公式，為排水工程規劃提供依據。 -
With the meteorological and hydrographic data in songhuajiang and nenjiang valley from 1951 to 1995, using correlation analysis and empirical orthogonal analysis, the rule of the flood and relation between flood and precipitation distribution in this region are discussed. the results show that periodic change of water level is obvious in this region. now water level is in the serious stage from 1980 ' s. there are great relation between the water level of flood period and the precipitation. the unusual precipitation of nenjiang valley has greater impact than that of second songhuajiang valley. at the summer in 1998, songhuajiang and nenjiang valley encountered the ghastly flood and the reason for that is the anomalous precipitation great exceeding the historic maximum
利用松花江，嫩江流域1951 1995年期間的氣象和水文資料，採用相關分析，經驗正交分析等方法，討論了該流域洪澇發生的規律及其與流域內降水分佈的關系.文章指出，江流域的水位變化有明顯的階段性，且具有全流域一致的特性，目前正處在80年代以來洪澇較嚴重的階段;嫩江流域降水異常偏多對松花江洪澇的影響比第二松花江的作用要大; 1998年夏季，松花江，嫩江流域出現超歷史紀錄特大洪水的關鍵原因是嫩江流域6 8月的降水距平百分率遠遠超過了歷史上的的最大值 -
A s t he main c ontent o f a r esearch p reject funded b y t he national natural science foundation of china ( nsfc ), the dissertation studied many aspects on construction industry, and delivered the following results : 1. the dissertation firstly makes a theoretical analysis on the general rule of construction growth, followed by an empirical test on the data of 34 countries in different development stages. this cross - sectional analysis and regression model investigate the relationship between the share of construction value - added ( cva ) in gross domestic product ( gdp ) and gdp per capita
在對建築業的成長一般規律進行理論分析的基礎上，利用34個處于不同發展時期國家的橫斷面數據，回歸模擬出建築業增加值在gdp中所佔比重與人均gdp的關系，結果發現：建築業增加值在gdp中的比重隨人均gdp增長而呈現三次曲線關系，先上升，後下降，然後隨人均gdp增長還有可能繼續上升；第一次達到的正常情況頂點位置的產值比重（產業增加值gdp ）為7 . 28 ，中國建築業正處在向這一頂點攀升的過程中。 -
The empirical result illustrates that we can simplify the single rule and reduce the number of rules through the gmm method. we can also solve the noisy problem in the practical application effectively
實驗結果表明，採用gmm模型簡化決策樹規則，既能簡化單個規則，又能減少規則的總數量，更能排除數據中噪音的干擾，提高規則的分類精度。 -
Far from drawing conclusions from sole empirical studies or rule of thumb, this algorithm is derived from particle trajectory study and convergence analysis
本文分析了粒子群中獨立粒子的運動軌跡，以及整個粒子群系統的穩定性，在此基礎之上提出新的參數設置方法。 -
Patent filing seems a typical rule for most of knowledge - based industries, only few of empirical studies challenge this discipline
對于大多數知識型產業而言，專利申請是典型的法則，極少有實證研究挑戰這個鐵律。 -
Empirical results based on a certainty equivalent maximization model reveal that priority rule may be more favorable in the areas where probability of water shortage is low
反之，在雨量豐沛的地區（如東部） ，農、工用水人都偏好優先權制，因此實施優先權制會是一個理想的選擇。 -
In continuous - lime framework, assuming that asset price follows stochastic diffusion process, it introduces parametric uncertainty, and applies stochastic dynamic programming to derive the closed - form solution of optimal portfolio choice, which maximizes the expected power utility of investor ' s terminal wealth ; in discrete - time framework, continuous compounding monthly returns of risky asset are assumed to be normal i. 1. d., it applies the rule of bayesian learning to do empirical study about two different sample of shanghai exchange composite index
在連續時間下假設資產的價格服從隨機擴散過程，引入參數不確定性，利用隨機動態規劃方法推導出風險資產最優配置的封閉解，使投資者的終期財富期望冪效用最大；在離散時間下假設風險資產的連續復合月收益率服從獨立同分佈的正態分佈，通過貝葉斯學習準則，以上證綜合指數不同區間段的兩個樣本做實證研究。 -
Secondly, basing on the theoretical analysis to the model in customers purchasing behavior and brand selection, the paper, according to the characteristics of different segment markets as well as consumption classcs, standing at the angle of enterprise, theorctically explores how to make marketing strategies in limited markets, and gives a concise as well as empirical explanation by a variety of concrete cases, guined the primary idea how the real estate enterprises builds up the marketing strategics based on adapting to the features of buyer market, the real estate the thesis uses the methods of swot etc to analyse the strategic environment and the interior factors of chongqing longjingyuan real estate businesses. in the pricing strategy, along the optional rule which customers purchase commodities for value maximization and price minimization, the paper works out the delivery value pricing method which can guarantee both the delivery value attracting customers and the profit of enterpriscs, combined with philip kotlers delivery value theory for customer
本文首先對市場營銷管理的理論，特別是房地產營銷管理的特殊性、房地產市場發展的歷史和市場營銷管理的現狀進行了分析和總結，提出了本文的研究思路和以市場為導向的戰略理論指導思想。在本文運用的理論工具的指導下，應用市場調查理論、波特模型、市場細分理論，對本課題所處的市場環境，包括重慶市房地產市場和與本課題所在地區的宏觀經濟環境、區域環境、政策環境、城市規劃、行業環境以及消費者市場的收入水平、家庭結構、消費能力、消費心理、居住偏好、生活習慣等28個指標進行調查分析，對本課題的競爭環境進行了研究，提出了與本研究項目相適宜的市場需求和市場營銷機會，確定了項目要進入的目標市場。
分享友人