A keyword query method and device

A query method and keyword technology, applied in the field of information processing, can solve the problems of poor scalability, low efficiency and high work efficiency of collaborative space keyword algorithms

Active Publication Date: 2018-03-16
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of poor scalability and low efficiency of the collaborative space keyword algorithm in the prior art, the purpose of the present invention is to propose a keyword query method and device, which can be compatible with large-scale data operations and has good scalability; and can ensure the best Excellent solution, high work efficiency

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  • A keyword query method and device

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Embodiment Construction

[0045]In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be further clearly, completely and detailedly described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0046] According to an embodiment of the present invention, a keyword query method is provided.

[0047] Such as figure 1 As shown, the keyword query method provided according to the embodiment of the present invention includes:

[0048] Step S101, scanning each object within a defined range, and obtaining data information of each object;

[0049] Step S103, const...

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Abstract

The invention discloses a keyword query method and device, wherein the method includes: scanning each object within a defined range, and acquiring data information of each object; constructing the data information of each object into a data set; acquiring Query request, verify the legitimacy of the query request; if the query request is legal, query in the data set according to the legal query request, and return the result that meets the query request. The present invention splits the construction result range set into the first task and the second task and performs calculations separately, avoids the use of IR tree, is compatible with large-scale data operations, and enhances scalability; using an iterative algorithm to construct the result range set can guarantee The range of the obtained result sets the optimal solution, which improves the working efficiency.

Description

technical field [0001] The present invention relates to information processing technology, in particular, to a keyword query method and device. Background technique [0002] Recently, with the emergence of large-scale spatial data, spatial data query has become a research hotspot. Given a set of objects with spatial and textual descriptions, a spatial keyword query consists of a set of keywords and location information. An object understands that the text description contains a specified keyword, we say that the object covers this keyword. A query tries to find the closest object covering all keywords. However, in some specific applications, only a combination of some objects can meet the user's needs; for example, a tourist wants to find a nearby set of places of interest, including restaurants, supermarkets, and hotels; another example is in interdisciplinary collaboration In practice, project leaders often want to find experts in different fields or people with differe...

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G06F17/30
Inventor赵翔徐浩何培俊葛斌
OwnerNAT UNIV OF DEFENSE TECH