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62 results about "Rename" patented technology

In computing, rename refers to the altering of a name of a file. This can be done manually by using a shell command such as ren or mv, or by using batch renaming software that can automate the renaming process.

Vulnerability code clone detection method based on context semantics and patch verification

The invention discloses a vulnerability code clone detection method based on context semantics and patch verification, and solves the problem that an existing vulnerability code clone detection method cannot obtain vulnerability context and patch repair. The method comprises the steps of obtaining vulnerability data; marking vulnerability code control statements; performing abstract normalization preprocessing on vulnerability source codes and patches; constructing a vulnerability function and a vulnerability vulnerability code fingerprint library; cloning and detecting a to-be-detected code; and judging a detection result and outputting the detection result to finish vulnerability clone detection of the software. Based on the code fingerprint, the problem of low accuracy of a high-level abstract technology is avoided; according to the method, the influence of renaming on the detection accuracy is eliminated for the code abstract preprocessing operation; the context relationship and the patch are verified, so that the false alarm rate is reduced; besides, fragile code, control statement and patch detection is carried out on the to-be-detected code, so that the application scene is expanded and the missing report rate is reduced. The method is used for detecting bugs caused by code cloning in software.
Owner:陕西阡陌通达科技有限公司

OLAP pre-computation engine optimization method based on object storage and application

The invention provides an OLAP pre-computation engine optimization method based on object storage and application. Three optimization directions are provided, namely, the logic paths of renaming object operation reduction, data consistency check and inverted index file inversion are provided. Through a file mapping table added to the metadata layer, a mapping relationship between files before andafter renaming is matched, and renaming operation on the bottom layer of the file system is reduced; and a logic path of a partition directory hierarchical structure of the file is inverted to correspond to a prefix of the file in the object storage, thereby realizing quick query and reading of the object storage, adding logic verification to reading operation, deleting operation and writing operation, and checking data consistency. According to the method, the read-write mode of the OLAP engine in the object storage using process is optimized, the execution efficiency of the engine is improved, response to the analysis requirement of an upper-layer report system is accelerated, and based on the method, an efficient OLAP calculation query execution engine can be constructed, the construction efficiency is improved, and query is accelerated.
Owner:KUYUN SHANGHAI INFORMATION TECH CO LTD
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