Unstructured data information query method and system based on secondary attributes

A technology for unstructured data and information query, which is applied in the fields of unstructured data, artificial intelligence, and data query language, and can solve problems such as inconvenient information, complex dependence of AI algorithms, and large differences

Active Publication Date: 2020-10-27
COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not convenient to use AI algorithms to obtain information in unstructured data due to the comp

Method used

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  • Unstructured data information query method and system based on secondary attributes
  • Unstructured data information query method and system based on secondary attributes
  • Unstructured data information query method and system based on secondary attributes

Examples

Experimental program
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Embodiment Construction

[0057] The present invention will be further described below through specific embodiments and accompanying drawings.

[0058] An example of a complete process based on an academic map:

[0059] A certain unit builds a knowledge map in the academic field, with characters as nodes. (Note: image 3 In , the solid line box represents the part that can be realized by the existing technology, and the dotted line box is the secondary attribute constructed based on the multi-level attribute proposed by the present invention; where the oval is a node, and the square box is an attribute).

[0060] 1. Taking Zhang San as an example, the node has three attributes, name: Zhang San, title: researcher, paper: "xx Research", such as figure 2 As shown, the two attributes of name and title are strings, and the value of the thesis attribute is a pdf file that is used as a Blob object.

[0061] 2. Due to the expansion of the academic map, it is necessary to reflect the keywords and co-authors...

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Abstract

The invention discloses an unstructured data information query method and system based on secondary attributes. The method comprises the following steps: 1) for a target database, taking unstructureddata of each record in the target database as a primary attribute of the corresponding record; 2) extracting internal information in each primary attribute as a secondary attribute of the primary attribute; 3) expanding the query language of the target database, and adding a semantic operator ''->''; extending a query engine of the target database to compile and execute a query statement conforming to the semantic operator ''->'' grammar; 4) enabling the query engine to inquire the cache result meeting the query condition from the cache system according to the query condition, and if the matching result does not exist, searching for a matched record in the target database according to the primary attribute in the query condition, then extracting secondary attributes from the primary attribute of the matched record, matching the secondary attributes with the secondary attributes in the query condition respectively, and returning the matching result.

Description

technical field [0001] The invention relates to the technical fields of unstructured data, data query language and artificial intelligence, aiming at the current situation that the prior art cannot conveniently perform information query on unstructured data and calculate on demand. A method and system for realizing unstructured data query based on secondary attributes are proposed. Background technique [0002] Unstructured data occupies a relatively large proportion of network data, and pictures, audio recordings, videos, and unformatted long texts all belong to unstructured data. At present, the technologies related to the storage and query of structured data are relatively mature, and the related solutions for the storage and management of structured data have been perfected. However, with the advancement of technology and the development of the times, the sources of data are becoming wider and wider, the number is increasing, and the form is becoming more and more compl...

Claims

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Application Information

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IPC IPC(8): G06F16/33G06F16/332
CPCG06F16/3329G06F16/334
Inventor 沈志宏赵子豪周园春
Owner COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI
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