查询词典 classification

Packet classification is a technique to match each incoming packet at a muter against a database of classifier and specify forwarding rules for the packets. The classifiers are a powerful and uniform way to implement new network services. The study on IP packet classification algorithm has practical significance and theory value.

分类器为实现因特网新业务提供了统一的方式，包分类是因特网提供一切有差别服务和其他新业务的基础，高速包分类问题是具有重要现实意义和理论价值的研究课题。

Mathematical structure of biological classification and its convincing interpretation have been an academic issue that has aroused extensive attention in the biological circle, but few have applied statistical distribution models to the study or analysis of structure of nonbiological classification, such as Soil Taxonomy.

生物系统分类的数学结构及其令人信服的解释一直以来是生物学界广泛关注的经典学术问题，然而很少有人用统计分布模型对非生物分类系统的结构进行分析与研究。

Both the relation between classification of Q and overbreak as well as underbreak and the relation classification of RMR and overbreak as well as underbreak are researched in this paper.

4正确评价岩体的质量，进行围岩分类，对研究岩体质量与洞室超欠挖之间的关系及分析和预测洞室超欠挖具有重要的意义。

In this paper, SVM is used in classification of polarimetric SAR images based on feature extraction, and effect of several important parameters of SVM on classification performance is analyzed.

该文在极化SAR特征提取的基础上，将SVM应用于极化SAR图像分类，分析了分类器参数对分类性能的影响。

Taking household\'s land use preference as classification rule, household agent types were divided though classification tree. Different choosing process of current production strategies and theirs probabilities after expiration of GFGP chosen by various types of household agents\' were put forward by experience-weighted attraction model based on bounded -rational approach. Finally, forecasting the results of households\' recultivation behaviour after the expiration of GFGP by scenario analysis method. The results show that relative policies are useful to rectify deviation of households\' bounded-rational behaviours and reinforce outcomes of GFGP.

以农户家庭户主的土地利用选择偏好作为分类依据，采用分类树方法对农户智能体类型进行划分；基于有限理性决策理论，引用经历—权重吸引模型，对农户智能体的目前生产策略决策过程和退耕还林政策期满后农户对不同生产策略的选择概率进行了分析；最后，在ERDAS环境下对退耕还林政策期满后农户的复垦行为进行了情景分析，认为政府制定并实施的相关政策措施对于纠正农户的有限理性行为偏差，维持和巩固退耕还林政策成果具有重要作用。

Attributes reduct, mining classification rules, and discretizing values of quantitative attributes are three fields in mining classification rules.

属性约简、分类规则提取、数量属性离散化是分类规则挖掘的三个方面。

The water body was extracted by combining density slicing of TM 5 or TM 7 with the terrain mask produced by DEM. NDVI was used to extract vegetation information, and desertification land and salification land information was extracted by the SAM classification method. Confusion matrix shows that the classification precision is 86.2%.

对TM5/TM7波段进行密度分割，结合DEM数据生成的模板提取水体及盐漠信息；利用NDVI提取植被信息；通过光谱角分类法提取沙化土地和盐渍化土地信息。

Using nearly 50 years of landuse classification map of urban center in Shanghai city as data resources,the gross variation of landuse is studied by using GIS technology.Suppotred by GIS,the status transfer matrix of different landuse classification of adjacent period of time is also calculated respectively by this paper.At last,the spatial evolving process of landuse of urban center in Shanghai city is analyzed simulatively and forcasted quantitatively by using Markov model.

以上海市中心城区近50年来有代表性的土地利用类型图为数据源，采用GIS技术分析了上海市近50年来的土地利用总量变化；并在GIS支持下分别计算出相邻时间点不同土地利用类型的状态转移矩阵，利用马尔可夫模型对上海市中心城区土地利用空间演变过程进行了模拟分析和定量预测研究。

In order to compare the computed tomography scan of schizophrenia and bipolar disorder, 27 bipolar patients and 25 schizophrenic patients who met criteria of International Classification of Diseases, the 10th version and Chinese Classification and Diagnostic Criteria of Mental Diseases, 2nd revised edition were evaluated by computed tomography, using quantitative measures of ventricular size, and sulcal prominence.

为了比较双相情感性精神障碍、精神分裂症病人脑结构的变化，收集符合国际疾病分类第10版和中国精神疾病分类方案与诊断标准第2版修订本的双相情感性精神障碍病人27例，以及精神分裂症病人25例，应用脑CT定量分析脑室、脑沟。

Its acquisition is based on the construction of lexieal databases, the utilization of existing thesauri, classification schedules and other knowledge classification systems, the identification of related concepts and the extraction of their attributes to establish relationship among concepts.

其获取，是在构建语料库的基础上，利用叙词表、分类表和其他知识分类体系等现有的知识本体，识别领域内外相关的概念并抽取相应属性，建立概念之间的关系，并利用所识别的概念和关系创建新的本体，融合已有的本体和新建本体。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新