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Google这个名字,据说是取自数学专有名词googol的谐音,是指10的100次方,即数字1后跟100个零,常指巨大的数字。这反映了创始人的梦想:把全世界的信息编组,让全世界的人使用。
Scirus的取名也颇有一番来历。这是一个人的名字,是古希腊的一个先知。从事科学研究工作,是向未来不确定性的挑战,需要不断的创新和拓展。Scirus搜索引擎的使命,就是帮助你在科研领域不断地挑战未来。
对Scirus有了一点了解之后,我觉得挺兴奋的:爱思唯尔长期被认为只提供价格昂贵的信息产品,殊不知我们也有免费的科研工具。而且,这个产品要是只指向爱思唯尔本公司的信息,那就没意思了,就失去了作为科研搜索引擎的意义。为了让大家对Scirus背后的信息源有一个清楚的认识,我把它们列举如下:
(一)网页。Scirus收录了4.5亿个与科技信息相关的网页:
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156 million .edu sites
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54 million .org sites
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9 million .ac.uk sites
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52 million .com sites
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36 million .gov sites
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Over 143 million other relevant STM and University sites from around the world
(二)其它信息资源。包括麻省理工学院、美国物理学会等许多著名机构的全文或其它信息资源:
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422,000 articles from American Physical Society
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453,000 e-prints from ArXiv.org
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25,000 full-text articles from BioMed Central
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13,000 documents from Caltech Coda
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3,000 e-prints from Cogprints
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72,000 full-text articles from Crystallography Journals Online
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20,000 documents from CURATOR
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1.1 million documents from Digital Archives
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20,400 documents from DiVa
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37,000 full-text articles from Project Euclid
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2,600 documents from HKUST Institutional Repository
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16,000 documents - of which 12,000 full-text documents - from HKUTO
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9,000 full-text documents available from IISc
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4,900 full-text documents available from Humboldt Universität
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242,000 full-text articles from Institute of Physics Publishing
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22.1 million patent data from LexisNexis
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11,700 full-text articles from Maney Publishing
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5,000 full-text documents from MD Consult
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413,000 full-text documents from Nature Publishing Group
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17.1 million Medline citations via PubMed
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63,000 documents from MIT OpenCourseWare
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23,900 technical reports from NASA
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309,000 full-text theses and dissertations via NDLTD
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6,900 documents from Organic Eprints
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747 documents from PsyDok
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827,000 articles from PubMed Central
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221,000 documents from RePEc
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60,500 full-text articles from Royal Society Publishing
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7.3 million full-text articles from ScienceDirect
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402,000 full-text journal articles from Scitation
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9,100 articles from SIAM
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9,700 documents from University of Toronto T-Space
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15,000 full-text documents from WaY
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