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In Data Science classification problems, researchers often find that they compile data with uneven class representations, which generally degrades the performance of many standard machine learning models, independently of their learning paradigms[1]. However, it is currently well known that the observed...
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Science, 298 (2002), pp. 2199-2202 View in ScopusGoogle Scholar Binder and Meyer-Hermann, 2016 S.C. Binder, M. Meyer-Hermann Implications of Intravital Imaging of Murine Germinal Centers on the Control of B Cell Selection and Division Front. Immunol., 7 (2016), p. 593 View in ScopusGo...
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7.《中华人民共和国禁毒法》规定,根据医疗、教学、科研的需要,依法可以( )、经营、使用、储存、运输麻醉药品和精神药品。 A.种植 B.生产 C.销售 D.研发 答案:B 8.毒品预防教育的重点对象是( )。 A.青少年 B.老人 C.幼儿 D.妇女 答...
Science Reports of the Tôhoku Imperial University (ser. 4, Biology) 7(2): 195–206, pls 7–8. Google Scholar BURTON, M. 1932b. Sponges. Discovery Reports 6: 237–392, pls 48–57. Google Scholar BURTON, M. 1934a. Sponges. Scientific Reports of the Great Barrier Reef Expedition ...
class_exists bool class_exists(string class_name) Tests whether a class is defined. Returns: TRUE if the class exists; FALSE for all other cases Description: class_exists() is used to check whether the … - Selection from PHP Functions Essential Referen
class除了表示“班级”的意思,还会有“等级、阶级、阶层、类别、等级制度”等意思。 最开始的时候指的古罗马打仗期间召集起来的一群一群士兵,在军队里有各种各样的等级,它后来指古罗马社会里把人分成的6个等级,再后来就是现在的用法。 今天我们就用单词class来旧辅新知...
This paper reviews the historical background and the development of rare earth-cobalt-based permanent magnets from basic science studies on rare earth-tran... KJ Strnat,RMW Strnat - 《Journal of Magnetism & Magnetic Materials》 被引量: 174发表: 1988年 Sm2(Co,Fe,Cu,Zr)17 magnets for use ...