glacial drift

glacial drift的基本解释

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冰碛

与glacial drift相关的网络例句 [注：此内容来源于网络，仅供参考]

In a database the concept of an example might change along with time which is known as concept drift When the concept drift the classification model built by use of old data is unsuitable for classify new data Therefore concept drift has become a hot issue in data mining in recent years Although many algorithms had been proposed to resolve this problem they can not provide users with the reason of concept drift However a user might be very interested in such rules For example doctors want to find what makes disease change; researchers want to know the reason of the variety of the weather; and decision makers would like to understand why a customer's shopping habit change In this thesis we propose a Concept Drift Rule mining Tree called CDR-Tree to solve this problem CDR-Tree can not only find the rule of concept drift also build the prediction model for both old and new data at the same time

无论在大型资料库或现实生活中，同一资料样本的概念有可能会随著时间的递移而改变，也就是产生所谓的概念漂移。当样本发生概念漂移时，由旧有资料所建构的分类模组将不再适用於预测新获得的资料，因此，近年来概念漂移已成为资料探勘中一项热门的研究议题。虽然已有？多学者提出不同的技术来解决概念漂移的问题，但是这些方法都是利用修正或重建的方式来产生适合新资料的预测模组，并无法提供造成概念漂移的原因。然而对使用者而言，其感兴趣的可能正是这些引起概念漂移的规则，如医生可能想了解引起疾病变化的主因、学者会想要知道气候转变的规则、或是决策者想找出顾客购物习惯改变的因素等。因此，本论文提出概念漂移规则探勘树( Concept Drift Rule mining Tree )，简称CDR-Tree，来解决这个问题。CDR-Tree不但能探测出造成概念漂移的主要原因，亦能同时建立新旧资料的预测模组以供决策者运用使用。

Based on investigations and studies of modern and ancient glaciers at the Tanggula Mountain pass, coupled with the GPS data and TL, 10B-26Al-21Ne and 14C dating data, Quaternary remnants of glaciation in the study area are discussed in detail. Two glacial epochs (i.e., the late Middle Pleistocene penultimate glacial epoch and the mid-late Late Pleistocene last glacial epoch) arid two Holocene glacial advances (i. e. the Neoglaciation and the Little Ice Age) have been intensively studied.

在对唐古拉山口现代冰川和古冰川考察研究的基础上，结合定位观测资料和TL、10B-26Al-21Ne及14C测年数据，对区内第四纪冰川遗迹进行了深入讨论，划分出二次冰期（即中更新世晚期的倒数第二次冰期、晚更新世中－晚期的末次冰期）和二次全新世冰进。

The glacial heritages of this period interspersed most wildly, such as glacial valleys, cirques, horns, knife-edge crest, morainic boulder, end moraine bars, lateral moraine bars, morainic platforms, morainic hills, morainic lakes and glacial lakes, they are the most magnificent glacial landform heritages in the geopark.

该次冰期遗迹在区内分布最广，冰蚀槽谷、冰斗、角峰、刃脊、冰碛漂砾，终碛垅，侧碛垅，冰碛平台，冰碛丘陵，冰碛湖，冰川湖遍布，构成区内最壮观的冰川地貌遗迹。

与glacial drift相关的网络解释 [注：此内容来源于网络，仅供参考]

glacial scratches：冰川擦痕 glacial soil 冰积土

glacial pot hole 冰川瓯穴 | glacial scratches 冰川擦痕 glacial soil 冰积土 | glacial substage 亚冰期

glacial alluvion; glacial alluvium：冰河冲积层

冰期 glacial age; ice age | 冰河冲积层 glacial alluvion; glacial alluvium | 冰斗 glacial amphitheater; cirque

glacial sluiceway; glacial spillway：冰河溢道

冰盖层 glacial sheet | 冰河溢道 glacial sluiceway; glacial spillway | 冰积土 glacial soil