查询词典 problems

In the first approach the metadata extraction is viewed as a classification problem. Three statistic classification models, including Support Vector Machines, Perceptron with Uneven Margins, and Maximum Entropy are studied. The approach suffers from the problems of ignoring the variance in lengths of documents and ignoring the dependency of text units within documents. To solve the problems, our second approach takes the metadata extraction as a sequence data labeling problem and makes full use of the sequential information.

论文首先研究了基于分类的元数据抽取方法，考察了支持向量机、非对称间隔感知机和最大熵模型在ADME中的应用；然后针对分类方法中存在的忽略文档之间的差异、不考虑文档上下文等问题，提出了基于序列数据标注模型的抽取方法，并结合最大熵马尔可夫模型、投票感知机模型和条件随机场模型进行了研究；最后本文根据前两种方法的设计思想和优缺点，研究提出一种新的结构预测模型—— CDASP（Coordinate Descent Algorithm for Structure Prediction），并将其应用于元数据的自动抽取中。

This thesis reviews the bankruptcy process of that plant, classifies the contradictions and problems in the process, analyzes the essential factors to ensure the steady execution of resource dry - out enterprises closedown and bankruptcy process, brings forward some key points which should be grasped in such cases, and puts forward advice on some problems from which no conclusion is drawn yet for the moment.

本文通过对桐柏银矿破产操作过程的回顾，对企业破产操作中出现的矛盾和问题进行了分类，对保证确保资源枯竭矿山企业关闭破产操作平稳实施的一些主要因素进行了分析，提出了这类企业关闭破产操作中应把握的要点。

The third chapter introduces the conflict between the prison execution and the target of prison execution, points out that the prison execution's features including closure property, non-creativity, non-freeness and the prisoners reliance on the regulations of the jail lead to the problems such as the prisoners'jialization, giving"criminal"labels to the prisoners, ect. These problems cause the difficulties for the prisoners'back to society.

第三章介绍了监狱行刑与犯罪人复归社会的目标的矛盾和冲突，指出监狱行刑的封闭性、非创造性、非自由性以及犯罪人对监狱规则的依赖性等监狱行刑的特征导致了犯罪人的"监狱化"、给犯罪人贴上"罪犯"的标签等种种弊端，造成犯罪人复归社会的困难。

Colette doesn't yet realise that the problems facing the charge entrusted to her, soon become her problems as well...

当时，歌拉还未知悉被委托这任务所要面对的问题，而且很快还成为了她的问题

Beginning with some cases, the article gives basic definitions of inverse problems and ill-posed problems. Then it discusses the Moore-Penrose generalized solution and the Moore-Penrose generalized inverse, and makes a conclusion that linear compact operator equations are ill-posed, that is, the Moore-Penrose generalized solution is unstable.

本文从一些实例出发，介绍了反问题和不适定问题的基本概念，并讨论了方程的Moore-Penrose广义解和Moore-Penrose广义逆，得出了线性紧算子方程的不适定性，即Moore-Penrose广义解的不稳定性的结论。

The design,complementation,supervision and effects of government budget are political problems as well as economic problems.

我们认为，政府预算的发展是政府追求行政绩效进步的过程，是经济民主在财政领域的发展和成熟的过程。

There are problems such as ethnics and compliableness associated with the use of a placebo control group, but the placebo control group can overcome the problems above. Therefore, it is necessary to use placebo reasonably in RCTs within the permission of ethnics.

虽然安慰剂对照仍存在伦理学和依从性的问题，但可以克服以上困难，得出更为科学的结论，所以，在中药临床试验中，应该在伦理学所能认可的最大限度内，最大可能并灵活地选择安慰剂对照。

By applying some latest theory of probability theory and statistics, survival analysis not only deals with censored data problem in real life, but also reveals more complicatedly theoretic problems and promotes the development of mathematical statistics, while it settles down practical problems.

生存分析理论结合一些新的概率统计的前沿理论，能妥善地处理现实生活中常见的删失数据问题，而且在解决实际问题的同时，揭示了一些更为复杂的理论问题，促进了数理统计的发展。

This paper gives a simple idea about the problems existing in students' writing: 1 psychological blockage, such as anxiety, lack of interest so on and so forth. 2 Chinglish frequently appears in Chinese students' composition. That is to say Chinese students often use Chinese way of thinking to writing English composition. 3 When Chinese students write, they usually commit intralingual error. Intralingual error is the mistake that students often make when they choosing words, making sentences. It also includes grammar mistake. 4 Chinese students often don't know how to organize the ideas when they face the composition topic. As a result, the compositions written by most of Chinese students don't have clear topic sentence. 5 Chinese students' compositions are usually very boring and dull. Based on the problems that exit in Chinese students' composition, this paper put forward five teaching strategies: 1 English teachers should foster positive emotion when they teach writing.

本课题简单阐述了中学生英语写作中普遍存在的5个问题：1、对英语写作存在心理障碍，比如畏惧心理等；2、中学生英语作文存在大量"中国式英语"，即学生经常借用汉语思维进行英语写作，使得文中出现不符合英文习惯的句子和表达；3、中学生在进行英语写作时经常犯言内错误，言内错误指学生在用词，造句及句法等方面经常容易犯的错误；4、中学生在面临所给的作文题目时不知道如何审题，写出来的作文中心思想不明确；5、中学生英语作文普遍存在内容单调贫乏的问题。

In this article, we will use this novel finite particle method to analyse several important and interesting dynamics problems in neat/insighting style, including the maximum and minimum period problem of the compound pendulum oscillation, plane impact problem and the spin and precession direction problems of the oblate and prolate satellites.

本文将透过先进的有限质点法，以极简的风格来分析几种重要而有趣的动力问题，包括复摆的最大及最小周期、刚体的角碰撞问题、薄碟型人造卫星公自转反向问题以及细长型人造卫星公自转同向问题。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。