查询词典 evolution

Based on the nLMDP andΘ-learning, an states evolution algorithm is proposed.A complementary abstract state space is emerged while the values of actions and the policy are learned. As a result,only goal state and the prototype actions have been enough for the designer.

本文提出了状态演化的方法，基于逻辑马尔可夫决策过程nLMDP和替换学习，仅需要设计者提供任务的目标抽象状态和主体的原型行动集，主体在学习中自己组织抽象状态空间，并对他们进行评价，完成策略的学习。

Complete research and induction regarding the special attribute and inherent law of movement of the artificial system is done through constructing the dynamic evolution model of artificial system and etc. Furthermore, guidelines on the analysis and the design of the artificial systems are deducted. Consequently, a set of rather integrated ideology of the engineering system theory is formed. This lays a solid foundation to the development of the engineering system theory, which is a new subject.

文中在讨论系统理论的人工系统领域应用时，提出了工程系统理论的新概念，尝试将抽象的人作为人工系统的重要组成要素，通过构造人工系统的动态进化模型等手段，对人工系统的特有属性及本征运动规律进行了深入研究和归纳，进而推演出人工系统分析、设计准则，形成了一套较完整的工程系统理论思想体系。

Fossils are well preserved. 2. The results of comparative analysis of South China Karst Nominated Sites (Phase 1) with similar sites: among the stone forests all over the world, Shilin Stone Forest in Yunnan is neither the tallest nor the oldest one, but the most complicated in the evolution history and richest in the forms. It represented a unique evolvement mechanism of stone forest development; Libo cone karst, possesses not only the most typical karst cones, but also the most complex assemblages of the cone karst.

"中国南方喀斯特"第一批世界自然遗产提名地与相似地点进行对比分析结果：云南石林喀斯特不是最高的石林，也不是最古老的石林，但云南石林形成演化历史最复杂，石柱的形态最丰富，代表一种独特的石林形成演化机制；荔波锥状喀斯特不仅锥峰单体最典型，而且锥状喀斯特地貌组合形态最丰富，代表典型的锥状喀斯特地貌特征，反映出大陆热带–亚热带锥状喀斯特的地质演化模式与过程。

The thesis also draw several conclusions as follows:(1) Orthogonal experiment design method can be viewed as a special case of genetic algorithm, i. e. a genetic algorithm with a fixed initial population, an oriented-mutation operator and one evolution epoch.(2) In terms of running steps, genetic algorithm is more complex than orthogonal experiment design method.

论文首次对正交试验设计法和遗传算法这两种独立发展起来的方法进行比较研究，提出(1)正交试验设计法是遗传算法的一种特例，即是一种初始种群固定的、只使用定向变异算子的、只进化一代的遗传算法；(2)遗传算法产生的优化解优于正交试验设计法产生的优化解，且遗传算法处理交互作用项的效率高于正交试验设计法；(3)遗传算法的步骤比正交试验设计法复杂，所需的试验次数也要多。

Software evolution consists of a series of complex change activities.

软件演化由一系列复杂的变化活动组成。

The distribution and composition of the factor in gradational boundary defines the evolution direction and the way of the system.

本文的主要研究成果包括

China's regional economic growth disparity has received much attention. Previous studies focus on the evolution law, composition and underlying forces of the regional economic growth disparity.

中国地区经济增长差距是近些年经济界密切关注的一个热点问题，迄今的研究涉及到地区经济增长差距的演变发展规律、差距构成以及产生原因等多个角度。

Based on a systemic study of the content and composition of various series neutral nitrogen compounds in source rocks, the rules of thermal evolution and generating mechanism have been put forward.

含氮化合物的研究始于 1 9世纪初期，当时有关有机氮化合物的研究对石油有机成因理论的形成起到了重大作用。

State Key Laboratory of Lithosphere Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China 2 China National Offshore Oil Corporation, Shanghai 200030, China 3 Beijing Computation Center, China National Star Petroleum Corporation, Beijing 100083, China

岩石圈演化国家重点实验室，中国科学院地质与地球物理研究所，北京100029 2 中国海洋石油总公司上海分公司，上海200030 3 中国石化勘探开发研究院，北京100083

A famous image from Darwin 's Origin of Species, written over a century before the dawn of the first computer, precisely embodies the task of evolution in computerese.

达尔文的《物种起源》写于一个多世纪之前，第一台计算机尚未出现的时代。书中有一个著名的形象化描述，精确地体现了运用计算机语言实现进化的使命。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。