Statement viewpoint extraction method, device, computer equipment and storage medium

A technology of opinions and sentences, which is applied in the fields of sentence and opinion extraction methods, computer equipment and storage media, and devices, can solve the problems of low extraction accuracy and achieve the effect of improving accuracy and recall and accurate extraction results

Pending Publication Date: 2021-11-05
CHINA PING AN LIFE INSURANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on this, it is necessary to provide a sentence opinion extraction method, device, computer equipment and storage medium for the problem of low extraction accuracy of existing sentence extraction methods

Method used

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  • Statement viewpoint extraction method, device, computer equipment and storage medium
  • Statement viewpoint extraction method, device, computer equipment and storage medium
  • Statement viewpoint extraction method, device, computer equipment and storage medium

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Embodiment Construction

[0042] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them.

[0043] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] Optional embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0045] figure 1 It is an implementation environment diagram of a sentence viewpoint extraction method provided in an embodiment, such as figure 1 As shown, in this implementation environment, a computer device 110 and a terminal 120 are included.

[0046]It should be noted that the terminal 120 and the computer device 110 may be smart phones, ta...

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Abstract

The invention discloses a statement viewpoint extraction method, a device, computer equipment and a storage medium. The method comprises the steps of training a viewpoint extraction model according to sample data, obtaining a two-stage extraction model, wherein the two-stage extraction model comprises a first-stage viewpoint extraction sub-model and a second-stage object extraction sub-model; inputting the current sentence into the viewpoint extraction sub-model for viewpoint recognition to obtain a corresponding viewpoint fragment set; and inputting the viewpoint fragment set into the object extraction sub-model, and extracting any viewpoint fragment in the viewpoint fragment set to obtain an extraction result. Therefore, due to the fact that the two-stage extraction model is introduced, the finally obtained extraction result is more accurate, and data prove that compared with the prior art, the accuracy and recall rate of the extraction result obtained through the two-stage extraction model are obviously improved.

Description

technical field [0001] The present invention relates to the technical field of artificial intelligence, in particular to a sentence viewpoint extraction method, device, computer equipment and storage medium. Background technique [0002] With the development of artificial intelligence technology, artificial intelligence technology is also continuously applied in the financial field. Among them, artificial intelligence technology can be applied to opinion extraction in research reports and financial opinion reports. [0003] Existing methods for extracting financial opinions focus on labeling objects and opinions using sequence annotations. The existing sequence labeling method will label each word in the selected sentence, respectively marking "0", "B_object", "I_object", "B_viewpoint", "I_viewpoint" One of (wherein, B represents the initial word of the segment, and I represents the non-initial character of the segment). After marking each word in the selected sentence, us...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F16/33G06F16/335G06F16/35
CPCG06F16/3344G06F16/3346G06F16/335G06F16/35
Inventor马跃
OwnerCHINA PING AN LIFE INSURANCE CO LTD