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A detection method for falsely issued value-added tax special invoices based on parallel loop detection

A loop detection and detection method technology, applied in the computer field, can solve problems such as inability to achieve efficiency, time-consuming and laborious, and inability to adapt, and achieve the effect of good practical significance and use value

Inactive Publication Date: 2021-01-29
XIJING UNIV
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  • Description
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AI Technical Summary

Problems solved by technology

Traditional detection algorithms generally use depth-first traversal to traverse all points in the graph to detect whether there is a loop. In terms of time complexity of depth-first traversal O(n^2), when the amount of data is relatively small, it can also adapt to The current computing, when the amount of data grows to a certain extent, its efficiency will drop sharply, and in some environments that require high computing efficiency, it may not be able to adapt
In order to detect the behavior of falsely issuing special value-added tax invoices, it is necessary to traverse all the enterprise nodes that have opened accounts in the bank. If the traditional loop detection method of depth-first traversal is used, it will definitely not be able to achieve the required efficiency.
[0008] In the detection of false VAT special invoices in the past, manual comparisons were often used to search for fund transfers. This process is often time-consuming and laborious, and the existence of manual operations cannot avoid possible loopholes.

Method used

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  • A detection method for falsely issued value-added tax special invoices based on parallel loop detection
  • A detection method for falsely issued value-added tax special invoices based on parallel loop detection
  • A detection method for falsely issued value-added tax special invoices based on parallel loop detection

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Embodiment

[0079] For a complete calculation task, the input of the algorithm is a text document (.txt), which records the connection relationship of all points in the graph, and the general form is (the distance between the two vertices of vertex 1 and vertex 2), The default pointing is from vertex 1 to vertex 2. When the program receives the corresponding document, it will automatically parse the text and extract the corresponding information, and convert it into the designed data format. Then load the computing module and assign the computing tasks to the computers in the distributed cluster. Finally, the algorithm will output all the cycles in the graph. The experiment tested 500 points and found all loops within 5s.

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Abstract

A method for detecting falsely issued special value-added tax invoices based on parallel loop detection, through the method of loop detection to detect falsely issued special value-added tax invoices, and improving the loop detection, through the distributed parallel computing method, the Computing tasks are assigned to multiple computers in a distributed cluster, greatly improving computing efficiency.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a method for detecting falsely issued special value-added tax invoices based on parallel loop detection. Background technique [0002] In company transactions, after the value-added tax invoice is issued, there will be a corresponding capital transaction to show that the transaction is real, and the tax invoice issued corresponds to the real business transaction; but in fact, the fund will be After going through multiple accounts, returning to the starting point account, there is no actual business relationship, that is, the transaction is false, and this behavior is falsely issuing a special value-added tax invoice. [0003] Value-added tax is a new type of tax that was fully implemented in my country in 1994. It is of great significance to reduce tax links, collect taxes reasonably, and promote tax revenue. Falsely issuing special value-added tax invoices violate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q40/00
CPCG06Q40/12
Inventor 丁军张宇牛臻刘卓瑞谢峰刘海明卢华
Owner XIJING UNIV
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