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Retrieval method and retrieval device

A preset method and word segmentation technology, applied in the field of retrieval, can solve problems such as retrieval failure, retrieval results not in line with user intentions, poor navigation system experience, etc., to achieve the effect of ensuring comprehensiveness

Inactive Publication Date: 2017-05-10
BYD CO LTD
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Problems solved by technology

[0003] However, the current problem is that when the navigation system uses the word segmentation algorithm to segment the keywords, on the one hand, it is easy to cause retrieval failure due to the wrong word segmentation of the keywords, and the retrieval results required by the user cannot be found. On the other hand, it is easy to Because the word segmentation of keywords is not accurate, the scope of retrieval is not comprehensive, the retrieval results do not meet the user's intention, and the user experience of using the navigation system is not good.

Method used

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Embodiment Construction

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0018] Any process or method descriptions in flowcharts or otherwis...

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Abstract

The invention puts forward a retrieval method and device. The retrieval method comprises the following steps of receiving a retrieval word input by a user; according to a first preset way, carrying out word segmentation processing on the retrieval word, and obtaining first retrieval results corresponding to a plurality of first segmented words according to the plurality of processed first segmented words; according to a second preset way, carrying out word segmentation processing on the retrieval word, and obtaining second retrieval results corresponding to a plurality of second segmented words according to the plurality of processed second segmented words, wherein the granularity of each second segmented word is smaller than the granularity of each first segmented word; and according to the first retrieval results and the second retrieval results, generating a retrieval result set, and returning the retrieval result set to a user. By use of the retrieval method of the embodiment of the invention, the retrieval results provided for the user by a navigation system more conform to the intention of the user, and the comprehensiveness of the retrieval results is guaranteed.

Description

technical field [0001] The present invention relates to the technical field of retrieval, in particular to a retrieval method and retrieval device. Background technique [0002] At present, users can search for various points of interest related to a location through the navigation system, and the navigation system will display the found points of interest to the user, and can also recommend routes to the user to guide the user to finally reach the point of interest. When the navigation system provides services for users, the navigation system usually needs to perform word segmentation processing on keywords first, and then match the multiple word segmentation of keywords with the information of points of interest stored in the database, so as to obtain the information of matching points of interest as the retrieval result Return to user for viewing. [0003] However, the current problem is that when the navigation system uses the word segmentation algorithm to segment the ...

Claims

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Application Information

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IPC IPC(8): G06F17/27G06F17/30
Inventor 罗锦文
Owner BYD CO LTD
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