发明名称 |
Bloom Filter Generation Method and Apparatus |
摘要 |
A Bloom filter generation method and apparatus is presented, where the method includes acquiring to-be-combined files, when a quantity of deletion records in the to-be-combined files falls within a false positive permission range, acquiring a Bloom filter of each to-be-combined file, where capacities of Bloom filters of different to-be-combined files are the same, and performing a bitwise OR operation on bit values at same locations in Bloom filters of the different to-be-combined files, in order to obtain a target Bloom filter and use the target Bloom filter as a Bloom filter of a combined file obtained by combining the different to-be-combined files, and hence an amount of calculation processing in Bloom filter generation is reduced, a system resource is reduced, and resource overheads are reduced. |
申请公布号 |
US2016162506(A1) |
申请公布日期 |
2016.06.09 |
申请号 |
US201615044273 |
申请日期 |
2016.02.16 |
申请人 |
Huawei Technologies Co., Ltd. |
发明人 |
Li Yong;Zhu Junhua |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
1. A Bloom filter generation method, comprising:
acquiring to-be-combined files, wherein at least one file of the to-be-combined files comprises a deletion record; acquiring a Bloom filter of each file of the to-be-combined files when a quantity of deletion records in the to-be-combined files falls within a false positive permission range, wherein capacities of Bloom filters of different to-be-combined files are the same; and performing a bitwise OR operation on bit values at same locations in the Bloom filters of the different to-be-combined files, in order to obtain a target Bloom filter and use the target Bloom filter as a Bloom filter of a combined file obtained by combining the different to-be-combined files. |
地址 |
Shenzhen CN |