等价

An important method of graphical model selection is to use scoring criteria to measure how well the graph structures fit the data. We present seven operators which can be applied to representations-largest chain graphs of equivalence classes.

由观察数据学习链图的结果仍然是一个等价类，当采用具有得分等价性的得分原则时，最好选择链图等价类空间作为搜索空间，这样可以避免对等价的链图重复得分。

The invention also discloses a relative report sender, which comprises inquirer for inquiring said disperse equivalent chain group; a controller for generating sending command to the sender when there is the disperse equivalent chain group; a sender for sending LSA refresh report at the main disperse chain.

本发明还公开了一种报文发送装置，该装置包括：查询单元，用于在网络设备发送LSA更新报文时查询所述网络设备与其邻居设备间的扩散等价链路组信息；控制单元，用于当查询结果为网络设备与其邻居设备间存在扩散等价链路组时，生成发送命令下发给发送单元；发送单元，用于按照所述发送命令，只在所述扩散等价链路组的主扩散链路上向邻居网络设备发送所述LSA更新报文。

The stochastic Bonhoeffer-Van der Pol system is first transformed into an equivalent deterministic system using the Chebyshev polynomial approximation, so that the problem of controlling stochastic chaos is reduced to the problem of controlling deterministic chaos in the equivalent system.

首先运用Chebyshev多项式逼近的方法，将随机Bonhoeffer-Van der Pol系统转化为等价的确定性系统，使原系统的随机混沌控制问题转换为等价的确定性系统的确定性混沌控制问题，继而可用Lyapunov指数指标来研究等价确定性系统的确定性混沌现象和控制问题。数值结果表明，随机Bonhoeffer-Van der Pol系统的随机混沌现象与相应的确定性Bonhoeffer-Van der Pol系统极为相似。

Basic concepts of Equivalence Relations, Dynamic equivalence problem, Basic operations of equivalence class, smart algorithm.

等价关系的基本概念，动态等价问题，等价关系基本操作的实现，提高效率的方法。

Classic rough set theory based on equivalence relation takes complete system as object of study , and divides the region into some non-intersect equivalence class; But, in the real life, because of the errors in data measuring, understanding of data, or the restriction in data collection , it can make the decision-making system incomplete, that is, value of attribution of some objects is unknown, which restrains development of the theory to practical direction.

经典粗糙集理论以完备系统为研究对象，以等价关系为基础，通过等价关系将论域划分为互不相交的等价类；然而，在现实生活中，由于数据测量的误差，对数据理解或获取的限制等原因，使得在知识获取时往往面临的是不完备系统，即可能存在部分对象的一些属性值未知的情况，这就极大地限制了粗糙集理论向实用化方向发展。

The idea of our algorithm is equivalence class classification for continuous time is constrained by a relation between the remaining delay time of triggering event and time value of DTA clocks or the remaining delay time of other events.

和同类算法相比，我们的算法用更广义的延迟时间等价类取代同类算法中受事件先后顺序约束的单元延迟时间等价类，并且不必生成那些仅仅因为时间流逝而产生的状态等价类。

Rough set theory is developed based on the notion of equivalence relation,but the property of equivalence has limited its application fields,which may not provide a realistic description of real-world relationships between elements.

粗糙集理论是建立在等价关系的基础上发展起来的，但等价关系性质的应用领域是有限的，等价关系不能对现实世界中的元素关系给出客观的描述。

Approximate equivalent transformation includes expanding process and reduction process.

约等价变换过程包括知识的约等价扩充和约等价约简。

In this paper, five equivalent conditions of the definition and five special nature of analytic function are given, and followed by their mutual equivalence of the proof , the relationship between the equivalent conditions and the nature of analytic functions is revealed, which can help us to learn the concept of complex variable function in deep depth and make analytic functions an important role in complex variable function.

本文依次给出了解析函数的五个等价条件及五个性质，并通过对它们相互等价性的证明，导出了解析函数等价条件与性质之间的关系，更加深入地揭示解析函数这一概念的内涵，展示出了解析函数在复变函数论学习中的重要性。

This paper is divided into two parts: The first part, mainly discussed the properties of unitary equivalence and the relation between unitary equivalence and similarity, introduced a unitary equivalent of the necessary and sufficient condition: Specht theorem; The second part of a major demonstration of the 11 normal matrix's necessary and sufficient conditions, given some important properties of normal matrix such as simultaneous diagonalization.

本文主要分为两部分：第一部分，主要讨论了酉等价的性质及酉等价与相似的关系，介绍了酉等价的充分必要条件Specht定理；第二部分，主要论证了正规矩阵的11条充分必要条件，给出了正规矩阵的一些重要性质

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。