发明名称 METHOD OF CALCULATING FEATURE-AMOUNT OF DIGITAL SEQUENCE, AND APPARATUS FOR CALCULATING FEATURE-AMOUNT OF DIGITAL SEQUENCE
摘要 <p>The use of the known feature amounts results in a low level of accuracy in finding similar files. To deal with this problem, the similar file determination process of this invention involves dividing a file, while at the same time changing a file dividing condition, and repeating this dividing operation until the total number of divided pieces of data exceeds a predetermined number. For each of the divided pieces of data thus obtained a hash value is calculated and all the hash values are output.</p>
申请公布号 EP2592559(A1) 申请公布日期 2013.05.15
申请号 EP20110803352 申请日期 2011.02.02
申请人 HITACHI, LTD. 发明人 FUJII YASUHIRO;SERITA SUSUMU;KAI SATOSHI;MURAKAMI TAKAO;NAKANO TAKAHIRO
分类号 G06F12/00 主分类号 G06F12/00
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