查询词典 in the rough

Firstly, those useless to classify texts are filtered according the category document frequency distribution difference of each feature; and then in order to overcome the limitations of TF-IDF weighting formula a novel weighting formula called TF-CDF is presented . Calculate the weight of each feature according to TF-CDF and build the Vector Space Model for the entire corpus. To select significant features, a feature selection approach based on Variable Precision Rough Set is also proposed and implement with some SQL sentences combining the definitions of VPRS with the advantages of SQL sentences.

该文首先根据特征词的类别分布差异进行特征过滤；然后，分析传统的权值公式TF-IDF的缺点，采用改进的权值计算公式简记为TF-CDF，依据TF-CDF公式计算每个特征词的权值，生成文档集的向量空间模型VSM；接着，提出了一种基于可变精度粗糙理论的特征选择进一步选择对分类贡献度大的特征，并用SQL实现。

But some parents love their children掏耳朵, in fact, there are many harmful effects of掏耳朵:掏耳朵, due to laugh and play rough, you may damage the skin of the external auditory canal; as a result of the use of the tools are not clean and can cause acute otitis externa, furuncle or external auditory canal swelling, caused great suffering to the children; may also be an accident, eardrum perforation, causing serious deafness.

可是有的家长总爱给孩子掏耳朵，其实，掏耳朵有很多害处：掏耳朵时，由于嬉笑打闹，可能损伤外耳道的皮肤；由于使用的工具不干净，可引起急性外耳道炎，或外耳道疖肿，给孩子造成很大痛苦；还可能发生意外，穿破鼓膜，引起严重耳聋。

It produces corresponding nonredundent rule by direct generalization of lattice's nodes; This paper also improves the incremental concept formation and Hasse diagram update and apply it to incremental rule generation. We give examples to illustrate the idea of the algorithm and corresponding experimental results. 6 Rough set theory and concept lattice are similar in some aspects, the relationship between them is interesting.

在概念格结构上提出了一种在一定条件下更有效的，在已建造好的概念格上提取规则的算法，这种方法主要依据格结点的直接泛化来产生相应无冗余规则；改进了一种的渐进式更新概念格与相应Hasse图的算法，并将之应用于渐进式规则生成。

And with that she carried La Faloise off into the lobby, while the other gentlemen once more resigned themselves to their fate and to semisuffocation and the masqueraders drank on the stairs and indulged in rough horseplay and guttural drunken jests.

布龙太太听清楚后就把拉法卢瓦兹带到前厅里，而另外几位先生只好无可奈何地继续等待。那几个穿戏服的群众演员正沿着楼梯边走边喝酒，他们互相打闹，用醉汉的嘶哑嗓门说说笑笑。

Clean the skin, the skin surface because the natural sebum film has completely disappeared, this state if frequent persistent, rough skin and lead to aging, so wash your face after the use of a humidor and the convergence of the neutral makeup water, care An indispensable part of the skin, particularly in older women, reduced ability to skin secretion, this session is even more important.

清洁皮肤之后，由于皮肤表面自然的皮脂膜已经完全消失，这种状态如果频繁持续存在，会导致皮肤粗糙和老化，因此，洗脸后使用具有保湿和收敛作用的中性化妆水，是护理皮肤必不可少的一个环节，特别是中老年女性，皮肤分泌能力下降，这个环节更加重要。

High altitude region is more srious than low region. The armyworm imperilment degree varies in different crops. The field planted wheat as forcrop is serious. Also, different levels of cultivation management have evident effects on the imperilment degree of armyworms. For instance, the fields of rough management and bad crop growing suffered more serious imperilment than those of high quality management, intensive cultivation and good crop growing way.

5海拔高低不同，粘虫为害程度有显著差异，表现为高海拔地区较低海拔地区受害重；不同作物对粘虫发生为害程度影响较大，表现为前作为小麦的玉米受害重；耕作管理水平对粘虫发生为害程度有显著影响，表现为管理粗放、长势差的地块受害最重，而管理水平高，精耕细作，长势良好的玉米地受害轻。

based on the analysis of the traditional gnss carrier phase measurement model and the rule of the integer ambiguity estimation,the quality of normal integer mapping is gained,then,the theory of rough integer mapping is proposed,the question of gnss integer ambiguity estimation is solved,the searching efficiency of integer ambiguity is improved,the problem of gnss carrier phase measurement in a certain extent is solved.

摘 要：在分析传统的基于gnss载波相位测量模型对整周模糊度解算的一般规律后，得出一般归整映射的性质，进而提出粗糙归整映射理论，用来解决整周模糊度浮点解归整问题，提高了整周模糊度的搜索效率，一定程度上解决了载波相位实时测量的技术难题。

Therefore, the paper adopts the technology based on Data Mining of Rough Set for Converter fault diagnose, study the method of fault character reduction and diagnose rule obtainer. The effective rule sets are acquired in terms of reduction of existing rules under remain identify ability conditions.

本文提出应用基于粗糙集的数据挖掘技术对变流器进行故障诊断，研究了故障特征的约简方法及诊断规则的获取方法，在保持识别能力的情况下，对规则进行修剪，得到了约简规则库。

The primary problem in using the method of Numerical Control Manufacture-Shot Peen forming to manufacture the part on rough is to determine the size of the roughcast.

采用毛坯数控加工-喷丸成形方法的首要问题是确定坯料结构尺寸。

Such failure is due to the accumulation of toner than age at first, so that the toner can not produce a position to enter the toner, and the waste toner in粉仓will continue to "squeeze" caused by "powder leakage" phenomenon, Then, as the toner contains纸灰, fiber and other filth, more rough, and long cartridge friction, and more tight, the pressure increases, eventually the surface of photosensitive film cartridge has been worn away, cartridge will be ruined.

产生这种故障的原因是起先废粉堆积过满，使再产生的废粉无法进入废粉创仓，而废粉仓中的废粉也会不断"挤"出来而产生"漏粉"现象，接着，由于废粉中包含着纸灰、纤维等脏物，较粗糙，与硒鼓长时间摩擦，而且越来越紧，压力越来越大，最终将硒鼓表面的感光膜磨掉了，硒鼓就损坏了。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。