Unlock instant, AI-driven research and patent intelligence for your innovation.
Method and device for extracting keywords of business field
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A keyword and field technology, applied in information retrieval and extraction business fields, can solve problems such as inaccurate judgment of keywords, and achieve the effect of solving inaccurate judgment of keywords
Inactive Publication Date: 2018-06-12
BEIJING GRIDSUM TECH CO LTD
View PDF4 Cites 8 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0010] The embodiment of the present invention provides a method and device for extracting keywords in the business field, so as to at least solve the technical problems in the prior art that the vocabulary of words that should be deleted needs to be manually maintained and the keywords are judged to be inaccurate
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027] According to an embodiment of the present invention, an embodiment of a method for extracting keywords in a business field is provided.
[0028] figure 1 is a flowchart of a method for extracting keywords in a business field according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:
[0029] Step S102, acquiring at least one text in the business domain.
[0030] In the above steps, the above-mentioned business field may be a business field of any industry, for example, manufacturing industry, tourism industry, transportation and logistics industry and so on. The text in the above business field may be knowledge text information on the Internet, for example, a blog on Weibo. Through the above steps, a text collection that needs to extract keywords in a specific business field can be obtained.
[0031] Step S104, calculating the word frequency and inverse document frequency of each keyword contained in each...
Embodiment 2
[0090] According to an embodiment of the present invention, an embodiment of an apparatus for extracting keywords in a business field is provided, wherein the method in Embodiment 1 above can be run in the apparatus provided in this embodiment.
[0091] Figure 5 is a schematic structural diagram of a device for extracting keywords in a business field according to an embodiment of the present invention, such as Figure 5 As shown, the device includes: an acquisition module 501 , a first calculation module 503 , a second calculation module 505 , a first selection module 507 and a second selection module 509 .
[0092] An acquisition module 501, configured to acquire at least one text in the business domain.
[0093]In the above acquisition module, the above-mentioned business field may be a business field of any industry, for example, manufacturing industry, tourism industry, transportation and logistics industry and so on. The text in the above business field may be knowledg...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a method and device for extracting keywords of a business field. The method comprises the steps of obtaining at least one text in the business field; calculating the word frequency and the inverse document frequency of each keyword included in each text; according to the word frequency of each keyword and the inverse document frequency, determining the critical degree indexof each keyword included in each text; according to the critical degree index of each keyword included in each text, screening to obtain the keywords satisfying predetermined conditions from the texts; according to the screened result, determining the keywords in the business field. The technical problem in the prior art that a word table of words which should be deleted needs to be manually maintained, and the judgment of the keywords is inaccurate are solved.
Description
technical field [0001] The invention relates to the field of information retrieval, in particular to a method and device for extracting keywords in the business field. Background technique [0002] There is a large amount of knowledge text information about various industries on the Internet, such as news reports on the automobile industry, discussions on car models in forums, advertising news in the tourism industry, travel strategies and other news. It is difficult to extract the key information from the text. Therefore, how to quickly and effectively summarize the key information of the text in a certain field or topic has become an important problem that information viewers need to face. [0003] Referring to our usual reading of papers and other documents, there are usually keyword information in the first paragraph of the document to mark the main content and main points of this document, so that readers can search and quickly obtain the general content information of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More