分类空间

The method is based on vector space model and process neural network.

针对信息挖掘中的网页自动分类问题，提出了一种基于向量空间模型和过程神经元网络的分类方法。

In combination of rough set theory and the distribution information of the land cover spectral feature space,a spectral feature neighborhood based tolerant rough set classification method is proposed to handle the uncertainty in the process of satellite remote sensing data classification.

结合粗糙集理论和遥感数据中地物光谱特征空间分布信息，提出了一种基于光谱特征邻域的容差粗糙集分类方法，用来处理卫星遥感数据分类中的不确定性问题。

The procedure is as follows: First, the haze area is recognized by using band statistic values, Second, the remote sensing image is classified by using unsupervised classification, then the aerosol optical depth distribution is calculated by comparing the radiation values in haze and clear areas, Finally, the image can be atmospherically corrected by using MODTRAN model.

首先，结合SPOT 5各波段的统计特征，从影像上识别出模糊区；然后，对影像进行非监督分类，对同一分类区内像元在模糊区和清晰区的辐射值进行比较，计算出气溶胶空间分布；最后，将气溶胶分布输入MODTRAN模型中，对影像进行大气校正。

During the process of the fore mentioned analyses, some tentative works as follows were done.(1)On the basis of the fundamental of spatial analytic geometry, the basic method for displaceable block searching was put forward and the relevant program was written. With this program one can easily search out all the displaceable blocks and omitting of blocks, which is very common in searching blocks manually, can be avoided.(2)The coefficient of stability of blocks with failure mode II-2(that is, sliding on a single sliding surface, but confined by near intersecting line )was deduced.(3)The multi-cavern effect of Laxiwa underground caverns was studied on the assumption that all of the caverns were full face tunneled at the same time.(4)The stability classification scheme of rock mass surrounding large scale underground caverns was established. In addition to inherit the merits of the method of engineering geological

在完成上述工作的过程中，本论文主要在以下几个方面进行了一些探索：①基于空间解析几何原理，提出了块体搜索的基本思路并编制出相应的程序，基本实现了块体搜索的自动化，既大大缩短了块体搜索时间，又能防止因人工搜索引起的遗漏；②推导出Ⅱ-2型(单滑面滑动，但受侧限面约束)块体的稳定性系数计算公式；③以数值模拟方法论证了拉西瓦地下厂房洞室群全断面一次开挖时群洞效应的具体特点；④以岩体质量、开挖效应、群洞效应和次生灾害效应为评价指标，建立了&大型地下洞室群围岩稳定性分类&方案；该方案既继承了水电行业规范&围岩工程地质分类&法的优点，又综合考虑了大型地下洞室群的工程特点。

Under the background of the nonstructural data mining model,this paper proposed a text classification algorithm based on the discovery feature sub-space model, TCDFSSM algorithm.

在非结构化数据挖掘结构模型，即发现特征子空间模型的运行机制下，提出了一种新的文本分类算法——基于DFSSM 的文本分类算法。

The experimental result shows that the improved VSM has the great effect on improving recall rate and precision of the document automatic categorization. It can not only refect the semantic information of the document, but also keep the characteristics of the document in the vector, what is pay to infrared processing.

试验结果表明，改进后的向量空间模型显著的提高了文档自动分类的准确率和召回率，既能完整的体现文档含义，又能加入文档的语义信息，有利于分类的进一步处理。

The algorithm is designed to work directly on the wavelet compressed domain which possesses the following characters: First of all, the multi-level gradient energy presentation of face pattern is proposed, which not only can highlight the facial parts in possible face patterns, but also can address effectively the problem of unknown size in face detection in compressed domain and therefore avoid the complex resolution transform in arbitrary ratios ; secondly, the skin-color model in YCbCr space is ameliorated to improve the reliability of skin segmentation; finally, a hierarchical detector which integrates the simply rule-based classifiers and complex neural network based classifier is designed to further improve the processing speed.

该方法有3大特点：首先，提出了小波域人脸模式的多级梯度能量描述，在有效表征脸部特点的同时，可避免复杂的压缩域图像缩放操作，首次较好地解决了压缩域人脸检测中尺寸未知的难点；其次，优化YCbCr彩色空间肤色模型，提高肤色分割准确度；最后，在检测器的设计中，将基于规则的简单分类器和基于神经网络的复杂分类器有机结合，进一步加快处理速度。

Through classification and analy-sis for main meeting in the field of living organiza-tion of urban setting, this paper explores itsclassification and character of space structure ofcorresponding urban square.

文摘：通过对城市聚居生活组织范畴内主要聚会行为的分类与分析，探讨了相应城市广场的分类与空间构成特征。

Under normal circumstances is linear classification, but in complex situations, it is necessary to ch...

通常情况下是线性的分类，但在复杂情况下，要把他转换到另一空间来，以便线性的分类， SVM有其优势，还能做非线性的波束形成。

Experimental results on the Olivetti Research Laboratory face database show that performing energy-normalization and the Fourier transform in preprocessing stage is feasible; better than the traditional eigenspace method, the local eigenspectra-based scheme gets higher recognition rate; comparing with the Euclidean distance rule, the Parzen classifier is more powerful for face recognition.

对ORL 脸像数据库的实验结果表明：在预处理中增加能量归一化和Fourier变换提取幅度谱，可以消除脸像的平移影响，明显地提高正确识别率；基于局部本征谱的特征提取手段相较传统的特征子空间提取手段有较高的识别率；相较常用的欧式距离分类准则而言，将Parzen 分类器应用于人脸识别有助于提高识别性能。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。