A hot topic selection method and system for energy power field science and technology periodicals

Abstract

The application provides a hot topic selection method and system for energy power field science and technology periodicals, extracts keywords from papers of domestic and foreign science and technology periodicals in the energy power field, merges and groups the keywords, counts the word frequencies, forms a hot keyword library, displays the keywords in a set number of rankings according to different proportions according to the different appearance frequencies of the keywords in the hot keyword library, and selects hot topics according to the statistical results of the keywords. The application can accurately grasp the front hot information of the energy internet.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of information processing, and relates to a hot topic selection method and system for a science and technology journal in the field of energy and power. BACKGROUND

[0002] The statements in this section merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] Science and technology journals are the main carriers of scientific and technological achievements and an important part of the independent innovation system. In the field of energy and power, a large number of academic papers are published every year. According to incomplete statistics, the number of papers published worldwide has reached more than one million in recent years. It is of great significance for science and technology journals to accurately grasp the frontiers of energy internet, screen and extract the directions actively discussed by the industry, find the right position, aim at the direction, and promote researchers to find the hot information in the industry.

[0004] However, according to the inventors' understanding, the existing topic selection of science and technology journals generally has the problems of time lag, limited vision, single method, and insufficient academic depth. SUMMARY

[0005] In order to solve the above problems, the present application provides a hot topic selection method and system for a science and technology journal in the field of energy and power, which can accurately grasp the frontiers of energy internet.

[0006] According to some embodiments, the present application adopts the following technical solutions:

[0007] A hot topic selection method for a science and technology journal in the field of energy and power, comprising the following steps:

[0008] Extracting keywords from papers of domestic and foreign science and technology journals in the field of energy and power;

[0009] Merging and grouping the keywords, and counting the word frequency to form a hot word library;

[0010] According to the different frequencies of each keyword in the hot word library, the keywords in the set number ranking are displayed in different proportions;

[0011] Selecting a hot topic according to the statistical results of the keywords.

[0012] As an optional implementation, the specific process of keyword extraction includes obtaining the bibliographic information of the paper, crawling the bibliographic information, and obtaining the keywords.

[0013] As an optional implementation, the specific process of merging and grouping includes screening synonymous keywords according to the crawling results, and grouping the synonymous keywords into the same group.

[0014] As an alternative embodiment, the word frequency of the keywords is counted, and the keywords are summarized and counted according to the publication time.

[0015] As an alternative embodiment, the specific process of displaying the keywords includes counting the frequency of occurrence of each keyword, sorting according to the frequency, and displaying the keywords in different proportions according to the different frequencies of the keywords, with the keywords with higher frequencies occupying a larger proportion.

[0016] As a further defined embodiment, a word cloud is drawn according to the word frequency of the keywords, and a column chart or pie chart is drawn.

[0017] As an alternative embodiment, when selecting a hot topic according to the statistical results of the keywords, the information of each publication album is also counted, and when selecting a hot topic according to the statistical results of the keywords, the information of each publication album is also counted, the impact factor of the corresponding journal is determined, the keywords covered by each journal are assigned weights according to the impact factor, and the keywords are reordered to determine the hot topic.

[0018] A hot topic selection system for energy and power field science and technology journals, comprising:

[0019] A keyword extraction module configured to extract keywords from papers of domestic and foreign science and technology journals in the energy and power field;

[0020] A processing module configured to merge and group the keywords, count the word frequency, and form a hot word library;

[0021] A display module configured to display the keywords within a set number of rankings in different proportions according to the different frequencies of the keywords in the hot word library;

[0022] A selection module configured to select a hot topic according to the statistical results of the keywords.

[0023] A computer-readable storage medium having a plurality of instructions stored therein, the instructions being adapted to be loaded by a processor of a terminal device and to execute the steps in the method.

[0024] A terminal device comprising a processor and a computer-readable storage medium, the processor being configured to implement the instructions, and the computer-readable storage medium being configured to store a plurality of instructions, the instructions being adapted to be loaded by the processor and to execute the steps in the method.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] The application can quickly count the keywords of scientific and technological papers published in the journal, understand the research hotspots and directions of the industry, and quickly and conveniently greatly reduce the time of manual statistics; through album analysis, the publication situation of the journal album can be understood. And make the scientific research personnel accurately and quickly find the industry hotspot information, and carry out research and development or publication matters according to the hotspot information. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application and the explanation thereof serve to explain the application, and do not constitute an improper limitation of the application.

[0028] Figure 1 is a keyword analysis process schematic diagram of the embodiment;

[0029] Figure 2 is a paper format finding process schematic diagram of the embodiment;

[0030] Figure 3 is a file naming mode schematic diagram of the embodiment;

[0031] Figure 4 is a keyword word cloud schematic diagram of the embodiment;

[0032] Figure 5 is a keyword column chart of the embodiment;

[0033] Figure 6 is a keyword pie chart of the embodiment. DETAILED DESCRIPTION

[0034] The application will be further described below in conjunction with the drawings and embodiments.

[0035] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application belongs.

[0036] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of a feature, step, operation, device, component and / or combination thereof.

[0037] As shown in Figure 1 The embodiment provides a hot topic selection method for energy power field scientific and technological journals, which comprises the following steps:

[0038] Read the title information - filter and get keywords - merge synonyms - keyword frequency statistics - draw word cloud - draw column chart - draw pie chart.

[0039] First, first through the basic file operation, such as Figure 2 As shown, read the title information required for statistics; By filtering and obtaining keywords in the title information; Establish a synonym keyword library to realize the automatic merging of synonymous keywords; Count the frequency of each keyword, and sort them according to the frequency; According to the different frequencies of keywords, display the keywords in different proportions; The number of keywords with the top ten frequencies and the overall proportion are displayed in the column chart; The top ten keywords are displayed in the pie chart according to the frequency.

[0040] Specifically, in the keyword analysis, the embodiment can collect important journal data of power energy field in the past three years, use the retrieval function of China Knowledge Network and other databases to query the title information of the published papers of each journal according to the year, and save it as a txt text format. The title information of each paper is in a fixed format. For example, the information after "% K" in the title information exported by China Knowledge Network is the keyword. Based on this, a python program is written to process the title information, which can realize automatic keyword extraction, keyword frequency statistics, and visual display of keyword information according to word cloud, column chart and pie chart. It should be noted that using reasonable file naming rules can realize batch statistics of title information; Some keywords may have the same meaning, such as "modular multilevel converter" and "modular multilevel converter", which have the same meaning. For such synonyms, appropriate merging should be performed.

[0041] Taking the keyword statistics of the scientific and technological papers published in the past three years of three journals, namely, "Proceedings of the Chinese Society for Electrical Engineering", "Power System Automation" and "High Voltage Technology", as an example: first, use China Knowledge Network to search the above scientific and technological papers by year, and then export them in endnote title format. Since only 500 can be exported at a time, the title information of each journal per year needs to be exported in multiple txt files, and a standardized file naming rule is adopted, such as Figure 3 As shown, and saved in the same folder can realize batch statistics; Write the relevant execution program to realize the summary statistics of the keywords of the three journals in the past three years, the keyword statistics of each journal in the past three years, and the keyword statistics of the three journals per year; According to the statistical results, filter out the synonymous keywords and write them into the synonym keyword library, and then run the program again to get the final result.

[0042] Secondly, the album also needs to be analyzed.

[0043] This study selected 20 key journals from the 29 core Chinese journals in electrical engineering included in the "Comprehensive List of Chinese Core Journals (2020 Edition)" for a special issue publication survey and analysis. The total number of articles published by these journals from 2018 to 2022 (excluding supplements, with the 2022 total number of articles being an estimate), as well as the names, number, and number of articles published in special issues from 2018 to 2022, were statistically analyzed using the CNKI website. The analysis covered the changes in total number of articles, the percentage of journals publishing special issues, the number of special issues, the number of articles published in special issues, and the percentage of articles published in special issues over the years; the differences in special issue publication between different journals; and the differences between different types of special issues.

[0044] Based on the aforementioned keyword analysis, the journal impact factor is used to rank the hot keywords by weight. The specific rules are as follows: assuming there are m keywords to be analyzed, numbered X1, X2, ... X... m The number of journals analyzed is n, labeled as: Y1, Y2, ... Y n Among them, the frequency of the i-th (i = 1, 2, ..., m) keyword in the k-th (k = 1, 2, ..., n) journal is Z(X). i ,Y k The impact factor for Chinese journals is based on the annual "Annual Report on Impact Factors of Chinese Academic Journals" published by CNKI, while the impact factor for English SCI journals is based on the impact factor published on the Web of Science website. Let's assume the impact factor of the k-th journal is I. k Then the comprehensive hot topic index of the i-th keyword (i = 1, 2, ..., m) is:

[0045]

[0046] It indicates the popularity of keywords and sorts them accordingly.

[0047] For keywords already covered in published albums, their overall popularity or the demand for publication in related special issues will decrease accordingly. Assume there are P topics in the statistics, among which keyword X... i It appears in the journal set Q, with the number of occurrences being Z(X). i ,Y j ), where j∈Q. Then the expected hotspot index of the keyword is:

[0048]

[0049] By sorting keywords according to their expected popularity index, we can obtain the ranking of popular words. The popular words with higher scores are the current popular topics.

[0050] Through keyword analysis, the hot words of scientific and technological papers published in the important journals in the field of electric power energy in the past three years are grasped, and the current research hotspots of the industry are understood; through album analysis, the publishing album situation of the Chinese core journals of the electrical engineering technology discipline is grasped. Combined with the research hotspots of the industry and the experience of publishing albums of top journals, the publishing album can be planned. Of course, the level and positioning of the journal itself should also be considered, and the differential topic planning is carried out, so that the success rate of the publishing album can be improved.

[0051] As shown in Figures 4-6 The statistical keywords of scientific and technological papers published in the past three years of three journals of Chinese Electrical Engineering Academy, Power System Automation and High Voltage Technology are taken as examples: after the title is exported on China Knowledge Network, the keywords are extracted and counted, and the statistical situation of the keywords of scientific and technological papers of the three journals in the past three years can be obtained. From the word cloud diagram, the research hotspots in the past three years of the three journals are power distribution network, modular multilevel converter, deep reinforcement learning, flexible DC, integrated energy system, fault diagnosis, renewable energy and demand response.

[0052] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system or a computer program product. Therefore, the present application can adopt a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer usable storage media containing computer usable program code (including but not limited to disk storage, CD-ROM, optical storage, etc.).

[0053] The present application is described with reference to flowcharts and / or block diagrams of the method, device (system) and computer program product according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of the flows and / or blocks in the flowchart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a means for implementing the functions specified in the flowchart and / or block diagram. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1 The means for implementing the functions specified in one flow or multiple flows and / or blocks.

[0054] These computer program instructions can also be stored in a computer readable storage medium which can guide the computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer readable storage medium produce a product including instruction means, which implements the functions specified in the flowchart and / or block diagram. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1the function specified in the one or more blocks.

[0055] These computer program instructions can also be loaded into computer or other programmable data processing devices, so that a series of operation steps are performed on the computer or other programmable data processing devices to generate computer-implemented processes, so that the instructions executed on the computer or other programmable data processing devices provide processes for implementing the flows Figure 1 one or more flows and / or blocks Figure 1 the function specified in the one or more blocks.

[0056] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0057] The above describes the specific embodiments of the present application in conjunction with the accompanying drawings, but is not intended to limit the protection scope of the present application. Those skilled in the art should understand that various modifications or changes made on the basis of the technical solutions of the present application without creative labor are still within the protection scope of the present application.

Claims

1. A hot topic selection method for energy power field science and technology periodicals, characterized in that, The method comprises the following steps: Key words are extracted from papers in the field of energy and power in domestic and foreign scientific journals; The key words are combined and grouped, and the word frequency is counted to form a hot word library; According to the different frequencies of the key words in the hot word library, the key words in the set number ranking are displayed in different proportions; According to the statistical results of keywords, hot topics are selected; including information statistics of each publication album, impact factors of corresponding journals are determined, weights of keywords covered by each journal are assigned according to the impact factors, and reordering is performed to determine hot topics; the specific rules are as follows, assuming that the keywords to be analyzed are m, numbered as: X1, X2, … X m ; the number of journals analyzed is n, labeled as: Y1, Y2, … Y n ; Wherein the number of the ith keyword in the kth journal is Z(X i ,Y k ), wherein i=1, 2, …m, k=1, 2, …n; suppose the impact factor of the kth journal is I k , then the comprehensive hot index of the ith keyword is: (1) The hotness of the key words is represented, and they are sorted; For the keywords that have been covered in published albums, the comprehensive heat or the publication demand of the related special issue decreases accordingly, assuming that the statistical topics are P, and the keyword X i occurs in the journal set Q, and the occurrence times are Z(X i ,Y j ), respectively, wherein ; then the expected hot index of the keyword is: - （2） According to the expected hot spot index of the key words, the hot word ranking can be obtained, and the hot word with a higher score is the current hot topic.

2. The method of claim 1, wherein the method is characterized by, The specific process of key word extraction includes obtaining the title information of the paper, crawling the title information, and obtaining the key words.

3. The method of claim 1, wherein the method is characterized by, The specific process of combining and grouping includes screening out synonymous key words according to the crawling results, and grouping the synonymous key words into the same group.

4. The method of claim 1, wherein the method is characterized by, The word frequency of the key words is counted, and the key words are summarized and counted according to the publication time.

5. The method of claim 1, wherein the method is characterized by, The specific process of displaying the key words includes counting the frequency of each key word, sorting according to the frequency, displaying the key words in different proportions according to the different frequencies of the key words, and the key word with more frequency occupies a larger proportion.

6. The method of claim 5, wherein the hot topic selection is made by a technology journal in the field of energy power. According to the word frequency of the key words, a word cloud diagram is drawn, and a column chart or a pie chart is drawn.

7. A hot topic selection system for energy power field technology periodicals, characterized in that, The method comprises the following steps: The key word extraction module is configured to extract key words from papers in the field of energy and power in domestic and foreign scientific journals; The processing module is configured to combine and group the key words, count the word frequency, and form a hot word library; The display module is configured to display the key words in the set number ranking in different proportions according to the different frequencies of the key words in the hot word library; The selection module is configured to select a hot topic according to the statistical results of the key words; Including the information statistics of each published album, determining the corresponding journal impact factor, assigning weight to the keywords covered by each journal according to the impact factor, and reordering to determine the hot topic; The specific rules are as follows, assuming that the keywords to be analyzed are m, numbered as: X1, X2, … X m ; The number of journals analyzed is n, labeled as: Y1, Y2, … Y n ; Wherein the number of the ith keyword in the kth journal is Z(X i ,Y k ), wherein i=1, 2, …m, k=1, 2, …n; suppose the impact factor of the kth journal is I k , then the comprehensive hot index of the ith keyword is: (1) The hotness of the key words is represented, and they are sorted; For the keywords that have been covered in published albums, the comprehensive hotness or the publication demand of related special issues decreases accordingly, assuming that the statistical topics are P, and the keyword X i occurs in the journal set Q, and the occurrence times are Z(X i ,Y j ), respectively, wherein ; then the expected hot spot index of the keyword is: - （2） According to the expected hot spot index of the key words, the hot word ranking can be obtained, and the hot word with a higher score is the current hot topic.

8. A computer readable storage medium characterized by, The terminal device comprises a processor and a computer readable storage medium, and the processor is used to implement the instructions; the computer readable storage medium is used to store a plurality of instructions, and the instructions are suitable for being loaded and executed by the processor to implement the steps in the method of any one of claims 1-6.

9. A terminal device, characterized by, The terminal device comprises a processor and a computer readable storage medium, and the processor is used to implement the instructions; the computer readable storage medium is used to store a plurality of instructions, and the instructions are suitable for being loaded and executed by the processor to implement the steps in the method of any one of claims 1-6.

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