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Method for extracting milestone event from mass texts

A milestone and text technology, applied in the field of extracting milestone events, can solve problems such as inability to aggregate, scattered milestone node information, and inability to extract event milestone information, so as to improve clustering results, improve accuracy and completeness

Active Publication Date: 2019-09-17
GUIZHOU POWER GRID CO LTD
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Problems solved by technology

[0002] Existing information extraction methods have been able to extract events and time from text, but based on massive data, there may be multiple documents describing the same event, if the event and time are directly extracted from the document, it may lead to The milestone node information of the same event is scattered into multiple events and cannot be aggregated, so that the completed event milestone information cannot be extracted

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  • Method for extracting milestone event from mass texts

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Embodiment 1

[0011] Embodiment 1: as figure 1 As shown, a method for extracting milestone events from massive texts, the method includes the following steps:

[0012] (1) Extract the folder-level association information of files in massive texts, use file names and folders as nodes, and use hierarchical relationships as edges to store data in a tree structure;

[0013] (2) Concatenate the file name and the path name of the file as the text of the current file, and use the K-Means clustering algorithm to calculate (each file is a node of the tree, and the path is a branch of the tree, such as a multi-layer file Folder nested file package, there are many files in it, the pure files stored in the first folder are the first layer, and other folders stored in the first folder can be extended further down) The tree structure of each file Distance, divide files with the same hierarchical relationship together as the initial cluster, and determine the initial cluster size of the K-Means clusterin...

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Abstract

The invention discloses a method for extracting a milestone event from mass texts, which comprises the following steps of: (1) extracting folder level association information of a file from the mass texts, and storing data through a tree structure; (2) splicing the file name and the path name of the file as a text of the current file, and using the K-Means clustering algorithm to calculate the tree-shaped distance of each file, dividing the files with the same hierarchical relationship together to serve as an initial clustering cluster, and determining an initial class cluster size of the K-Means clustering algorithm; and (3) extracting milestone events and time nodes under each cluster, and screening extraction results to form a milestone node list of the events. According to the method, the milestone events and the event nodes are extracted from each cluster after clustering, so that the problem that the same events cannot be combined after being extracted into a plurality of sub-events can be avoided, and meanwhile, the extraction accuracy and integrity are also improved.

Description

technical field [0001] The invention belongs to the technical field of extracting milestone events, and relates to a method for extracting milestone events from massive texts. Background technique [0002] Existing information extraction methods have been able to extract events and time from text, but based on massive data, there may be multiple documents describing the same event, if the event and time are directly extracted from the document, it may lead to The milestone node information of the same event is scattered into multiple events and cannot be aggregated, so that the completed event milestone information cannot be extracted. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for extracting milestone events from massive texts, so as to solve the problems existing in the prior art. [0004] The technical solution adopted by the present invention is: a method for extracting milestone events from ma...

Claims

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Application Information

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IPC IPC(8): G06F16/31G06F16/35G06K9/62
CPCG06F16/322G06F16/35G06F18/23213
Inventor 王鹏宇吴漾罗念华孔庆波缪新萍李文科
Owner GUIZHOU POWER GRID CO LTD
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