WO2019218452A1 - 热词分析方法、计算机可读存储介质、终端设备及装置 - Google Patents

热词分析方法、计算机可读存储介质、终端设备及装置 Download PDF

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WO2019218452A1
WO2019218452A1 PCT/CN2018/096267 CN2018096267W WO2019218452A1 WO 2019218452 A1 WO2019218452 A1 WO 2019218452A1 CN 2018096267 W CN2018096267 W CN 2018096267W WO 2019218452 A1 WO2019218452 A1 WO 2019218452A1
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exposure
text information
hot word
frequency
threshold
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French (fr)
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张依
汪伟
肖京
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Ping An Technology Shenzhen Co Ltd
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Ping An Technology Shenzhen Co Ltd
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    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00Handling natural language data
    • G06F40/20Natural language analysis
    • G06F40/279Recognition of textual entities
    • G06F40/289Phrasal analysis, e.g. finite state techniques or chunking
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00Handling natural language data
    • G06F40/20Natural language analysis
    • G06F40/205Parsing
    • G06F40/216Parsing using statistical methods

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  • the present application belongs to the field of computer technology, and in particular, to a hot word analysis method, a computer readable storage medium, a terminal device and a device.
  • Hot word that is, a popular online vocabulary, refers to a vocabulary phenomenon that reflects the problems and things that people in a country and a region pay attention to at a time. Hot words have the characteristics of the times and can be used as a hot topic in a period and a representative of people's death issues.
  • the determination of hot words is mainly obtained by network analysts according to the information they browse on the Internet. This method relies on the personal judgment of network analysts, and is subjective and difficult to objectively reflect the reality.
  • the embodiment of the present application provides a hot word analysis method, a computer readable storage medium, a terminal device and a device, so as to solve the problem that the determination process of the hot words in the prior art is subjective and the analysis result is directed to the enterprise. A very poor question.
  • a first aspect of the embodiments of the present application provides a hot word analysis method, which may include:
  • the preferred text information being text information including the hot word
  • the degree of association between each enterprise name and the hot word is calculated according to the frequency of exposure of each enterprise name in the preferred text information.
  • a second aspect of embodiments of the present application provides a computer readable storage medium storing computer readable instructions that, when executed by a processor, implement the hot word analysis method described above step.
  • a third aspect of an embodiment of the present application provides a hot word analysis terminal device including a memory, a processor, and computer readable instructions stored in the memory and executable on the processor, the processor executing The computer readable instructions implement the steps of the hot word analysis method described above.
  • a fourth aspect of the embodiments of the present application provides a hot word analyzing apparatus, which may include a module for implementing the steps of the above hot word analyzing method.
  • the embodiment of the present application has the beneficial effects that the embodiment of the present application provides a set of objective evaluation criteria for determining the hot words, frees the dependence on the personal ability of the network analyst, and determines the hot words. It is more difficult to objectively reflect the real situation, and after obtaining the hot words, the relationship between the enterprise and the hot words is comprehensively considered, and the analysis results have stronger guiding significance for the enterprise.
  • FIG. 1 is a flow chart of an embodiment of a hot word analysis method according to an embodiment of the present application
  • FIG. 2 is a schematic flow chart of a setting process of a first exposure threshold and a second exposure threshold in a specific implementation
  • FIG. 3 is a schematic flow chart of a setting process of a first exposure threshold and a second exposure threshold in another specific implementation
  • FIG. 4 is a structural diagram of an embodiment of a hot word analysis apparatus according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a hot word analysis terminal device according to an embodiment of the present application.
  • an embodiment of a hot word analysis method in an embodiment of the present application may include:
  • Step S101 Crawling a webpage published on the target website in the current statistical period by using a search engine.
  • the target website is a website with a page view that is larger than the preset page threshold.
  • the threshold of the page view may be set to 100,000 times, 500,000 times, 1 million times, etc. according to actual conditions, and the target website may be Baidu. News (http://news.baidu.com/), Netease News (http://news.163.com/), Tencent News (http://news.qq.com/), Phoenix News (http:/ /news.ifeng.com/) and other news sites or other news sites.
  • the statistical period can be set to one day, one week, half a month or one month according to the actual situation.
  • Step S102 Perform word-cutting processing on the text information in the webpage to obtain each word segment constituting the text information.
  • the word processing refers to dividing a sentence text into a single word, that is, each of the word segments.
  • the sentence text can be segmented according to the general dictionary to ensure that the words that are separated are normal words. If the words are not in the dictionary, the words are separated.
  • Step S103 Count the frequency of exposure of each participle in the text information.
  • the number of occurrences of each participle in the text information is separately counted.
  • Step S104 Determine a participle whose exposure frequency in the text information is greater than a preset first exposure threshold as a hot word.
  • the first exposure threshold may be set to 10000. If the exposure frequency of the “nineteenth largest” is 20000 in the current statistical period, which is greater than the first exposure threshold, it is directly confirmed as a hot word.
  • the participles in the text information whose exposure frequency is less than or equal to the first exposure threshold and greater than the preset second exposure threshold may also be determined as candidate word segments, and then each candidate is obtained from the historical statistical record.
  • the frequency of exposure of the word segmentation within T statistical periods before the current statistical period, and the candidate participle satisfying the following conditions are also determined as hot words:
  • n is the sequence number of the candidate participle, 1 ⁇ n ⁇ N, N is the total number of the candidate participles, t is the sequence number of each statistical period arranged in chronological order, 1 ⁇ t ⁇ T, T is a positive integer , ExpNum n,t is the frequency of exposure of the nth candidate participle in the tth statistical period, ExpNum n, T+1 is the frequency of exposure of the nth candidate participle in the current statistical period, ln is the natural logarithm
  • ThreshRatio is the preset proportional threshold.
  • the exposure amount of "artificial intelligence" is 1500 times in the current statistical period, not only less than the first exposure threshold, but less than the second exposure threshold, it is directly confirmed as a common word.
  • the determined hot words may also be filtered, that is, the words that cause interference are filtered out from the determined hot words, and some common interference hot words may be preset, for example, like “we”, “ everybody, “this” and so on.
  • the frequency of exposure of these interfering hot words has nothing to do with the news content, that is, regardless of the news content, the frequency of exposure of these interfering hot words may remain greater than the first exposure threshold.
  • hot word statistics if you do not filter these interference hot words, it will affect the accuracy of the analysis results. Therefore, you need to filter out the hot words from the determined hot words to get the filtered hot words. Get the hot words you really need.
  • the preset interference hot words can be obtained from the data list, and then all the determined hot words are compared with all the interference hot words one by one, if a certain hot word and some If the interfering hot words are consistent, they will be filtered out. Otherwise, if a hot word is inconsistent with any interfering hot words, the hot word is retained, and the last retained hot word is the filtered hot word.
  • Step S105 counting the frequency of exposure of each enterprise name in the preferred text information.
  • the preferred text information is text information including the hot word.
  • the current statistical period may include M sub-cycles, where M is a positive integer, and the frequency of exposure of each enterprise name in the preferred text information of each sub-period is calculated.
  • Step S106 Calculate the degree of association between each enterprise name and the hot word according to the frequency of exposure of each enterprise name in the preferred text information.
  • the degree of association between each enterprise name and the hot word can be calculated according to the following formula:
  • q is the serial number of the enterprise name, 1 ⁇ q ⁇ Q
  • Q is the total number of enterprise names
  • p is the serial number of the hot words
  • 1 ⁇ p ⁇ P is the total number of hot words
  • m is the time of each sub-period according to time
  • the serial number sequentially arranged 1 ⁇ m ⁇ M
  • EntExpNum q,p,m is the frequency of exposure of the qth enterprise name in the preferred text information containing the pth hot word in the mth sub-period
  • k m is Preset weight coefficient
  • Rel q,p is the degree of association between the qth business name and the pth hot word.
  • the association threshold can be set to 80% according to the actual situation. 90% or 95% and so on.
  • the above is the enterprise corresponding to the hot word association, and the other related angle is the hot word corresponding to the enterprise association.
  • the webpage is searched for text information showing the name of the enterprise, and then the hot words are searched for in the text information of the enterprise, the frequency of occurrence of each hot word is counted, and the hot words are sorted according to the frequency from largest to smallest. The higher the ranking of the hot words and the higher the relevance of the enterprise, the lower the relevance of the hot words after the ranking to the enterprise.
  • the company name should include its other name.
  • the company name should include its other name.
  • the company name when analyzing Tencent, not only search for "Tencent”, but also search for "Tencent”, “goose factory”, etc., for Facebook.
  • an nickname list of the enterprise name may be preset, and the correspondence between the official name of the enterprise and the other name may be recorded.
  • an nickname corresponding to the enterprise is obtained from the list, and the other name is also counted into the pair. The statistical process of the enterprise.
  • the setting process of the first exposure threshold and the second exposure threshold may include the steps shown in FIG. 2:
  • Step S201 Obtain the frequency of exposure of each historical hot word in each statistical period from the historical statistical record.
  • the historical hot words are hot words that have been determined before the current statistical period.
  • Step S202 Constructing a first exposure sequence of each historical hot word.
  • the first exposure sequence of each historical hot word can be constructed according to the following formula:
  • nh is the serial number of the historical hot word, 1 ⁇ nh ⁇ NH
  • NH is the total number of historical hot words
  • th is the serial number of each statistical period arranged in chronological order
  • 1 ⁇ th ⁇ TH nh is the total number of statistical cycle of nh historical hot words
  • HsExpNum nh is the total number of statistical cycle of nh historical hot words
  • ExpSeq1 nh for the first nh historical hot words of the first exposure sequence .
  • Step S203 calculating an average value of each of the first exposure sequences.
  • each first exposure sequence can be calculated according to the following formula:
  • AvExpSeq1 nh is the mean of the nth first exposure sequences.
  • Step S204 Constructing a sequence in which the average values of the respective first exposure sequences are sequentially arranged in descending order.
  • sequence in which the average values of the respective first exposure sequences are sequentially arranged in descending order can be constructed according to the following formula:
  • AvExpSeq1 nh1 ' is the mean value of the first exposure sequence arranged in the nth position from the largest to the smallest, 1 ⁇ nh1 ⁇ NH.
  • Step S205 calculating the first exposure threshold and the second exposure threshold.
  • the first exposure threshold may be calculated according to the following formula:
  • NMAX floor( ⁇ max ⁇ NH), ⁇ max is a preset coefficient, and 0 ⁇ max ⁇ 1, floor is a downward value function, and Threshold1 is the first exposure threshold;
  • the second exposure threshold is calculated according to the following formula:
  • NMIN floor( ⁇ min ⁇ NH)
  • ⁇ min is a preset coefficient
  • 0 ⁇ min ⁇ 1 is the second exposure threshold
  • the setting process of the first exposure threshold and the second exposure threshold may include the steps shown in FIG. 3:
  • Step S301 Obtain an exposure frequency of each historical hot word in each statistical period from the historical statistical record.
  • Step S302 constructing a first exposure sequence of each historical hot word.
  • Step S303 calculating an average value of each of the first exposure sequences.
  • step S301 to the step S303 is the same as the process of the step S201 to the step S203.
  • steps S301 to the step S303 are the same as the process of the step S201 to the step S203.
  • Step S304 constructing a second exposure sequence of each historical hot word.
  • the second exposure sequence of each historical hot word can be constructed according to the following formula:
  • HsExpNum nh, th1 ' ⁇ ExpSeq1 nh , 1 ⁇ th1 ⁇ TH nh , HsExpNum nh, th1 ' ⁇ HsExpNum nh, th1+1 ', ExpSeq2 nh is the second exposure sequence of the nthth historical hot word.
  • Step S305 calculating an average value of each of the second exposure sequences.
  • each second exposure sequence can be calculated according to the following formula:
  • AvExpSeq2 nh is the mean of the nth second exposure sequences
  • TH1 nh satisfies the following condition: HsExpNum nh, TH1 ' ⁇ AvExpSeq1 nh and HsExpNum nh, TH1+1 ' ⁇ AvExpSeq1 nh .
  • Step S306 constructing a sequence in which the average values of the respective second exposure sequences are sequentially arranged in descending order.
  • sequence in which the average values of the respective second exposure sequences are sequentially arranged in descending order can be constructed according to the following formula:
  • AvExpSeq2 nh1 ' is the mean value of the second exposure sequence arranged in the nth bit position in descending order.
  • Step S307 calculating the first exposure threshold and the second exposure threshold.
  • the first exposure threshold may be calculated according to the following formula:
  • the second exposure threshold is calculated according to the following formula:
  • the embodiment of the present application provides an objective evaluation standard for the determination of hot words, and gets rid of the dependence on the personal ability of the network analyst, and the determined hot words can be more difficult to objectively reflect the real situation, and After getting the hot words, the relationship between the enterprise and the hot words is considered comprehensively, and the analysis results have a stronger guiding significance for the enterprise.
  • FIG. 4 is a structural diagram showing an embodiment of a hot word analyzing device provided by an embodiment of the present application.
  • a hot word analysis device may include:
  • the webpage crawling module 401 is configured to crawl a webpage published on a target website in a current statistical period by using a search engine, where the target website is a website whose browsing amount is greater than a preset browsing threshold;
  • the word processing module 402 is configured to perform word segmentation processing on the text information in the webpage to obtain respective word segments constituting the text information;
  • a first statistic module 403, configured to count frequency of exposure of each participle in the text information
  • a first hot word determining module 404 configured to determine, in the text information, a participle whose exposure frequency is greater than a preset first exposure threshold as a hot word;
  • a second statistic module 405, configured to count frequency of exposure of each enterprise name in the preferred text information, where the preferred text information is text information including the hot word;
  • the association degree calculation module 406 is configured to calculate the degree of association between each enterprise name and the hot word according to the frequency of exposure of the respective enterprise names in the preferred text information.
  • the hot word analysis device may further include:
  • a candidate participle determining module configured to determine, in the text information, a participle whose exposure frequency is less than or equal to the first exposure threshold and greater than a preset second exposure threshold as a candidate participle;
  • a third statistic module configured to obtain, from a historical statistical record, an exposure frequency of each candidate participle in T statistical periods before the current statistical period, where T is a positive integer;
  • a second hot word determining module configured to determine candidate word segments satisfying the following conditions as hot words:
  • n is the serial number of the candidate participle, 1 ⁇ n ⁇ N, N is the total number of the candidate participles, and t is the serial number of each statistical period arranged in chronological order, 1 ⁇ t ⁇ T, ExpNum n, t is the frequency of exposure of the nth candidate participle in the t-th statistical period, ExpNum n, T+1 is the frequency of exposure of the nth candidate participle in the current statistical period, and ln is a natural logarithm function. ThreshRatio is a preset proportional threshold;
  • the hot word analysis device may further include:
  • a fourth statistic module configured to obtain, from a historical statistical record, an exposure frequency of each historical hot word in each statistical period, where the historical hot word is a hot word that has been determined before the current statistical period;
  • a first exposure sequence construction module for constructing a first exposure sequence of each historical hot word according to the following formula:
  • nh is the serial number of the historical hot word, 1 ⁇ nh ⁇ NH
  • NH is the total number of historical hot words
  • th is the serial number of each statistical period arranged in chronological order
  • 1 ⁇ th ⁇ TH nh is the total number of statistical cycle of nh historical hot words
  • the first exposure sequence mean calculation module is configured to calculate an average value of each first exposure sequence according to the following formula:
  • AvExpSeq1 nh is the mean of the nth first exposure sequences
  • the first mean sequence construction module is configured to construct a sequence in which the average values of the respective first exposure sequences are arranged in descending order according to the following formula:
  • AvExpSeq1 nh1 ' is the mean value of the first exposure sequence arranged in the nh1th position in descending order, 1 ⁇ nh1 ⁇ NH;
  • a first exposure threshold calculation module configured to calculate the first exposure threshold according to the following formula:
  • NMAX floor( ⁇ max ⁇ NH), ⁇ max is a preset coefficient, and 0 ⁇ max ⁇ 1, floor is a downward value function, and Threshold1 is the first exposure threshold;
  • a second exposure threshold calculation module configured to calculate the second exposure threshold according to the following formula:
  • NMIN floor( ⁇ min ⁇ NH)
  • ⁇ min is a preset coefficient
  • 0 ⁇ min ⁇ 1 is the second exposure threshold
  • the hot word analysis device may further include:
  • a second exposure sequence construction module is configured to construct a second exposure sequence of each historical hot word according to the following formula:
  • HsExpNum nh, th1 ' ⁇ ExpSeq1 nh , 1 ⁇ th1 ⁇ TH nh , HsExpNum nh, th1 ' ⁇ HsExpNum nh, th1+1 ', ExpSeq2 nh is the second exposure sequence of the nthth historical hot word;
  • a second exposure sequence mean calculation module for calculating an average of each second exposure sequence according to the following formula:
  • AvExpSeq2 nh is the mean of the nth second exposure sequences
  • TH1 nh satisfies the following condition: HsExpNum nh, TH1 ' ⁇ AvExpSeq1 nh and HsExpNum nh, TH1+1 ' ⁇ AvExpSeq1 nh ;
  • the second mean sequence construction module is configured to construct a sequence in which the average values of the respective second exposure sequences are arranged in descending order according to the following formula:
  • AvExpSeq2 nh1 ' is the mean value of the second exposure sequence arranged in the nth bit position in descending order
  • a first exposure threshold calculation module configured to calculate the first exposure threshold according to the following formula:
  • a second exposure threshold calculation module configured to calculate the second exposure threshold according to the following formula:
  • the current statistic period includes M sub-cycles, where M is a positive integer
  • the second statistic module may include:
  • a sub-period statistical unit for counting the frequency of exposure of each enterprise name in the preferred text information of each sub-period
  • the association calculation module may include:
  • a first calculating unit configured to calculate a degree of association between each enterprise name and the hot word according to the following formula:
  • q is the serial number of the enterprise name, 1 ⁇ q ⁇ Q
  • Q is the total number of enterprise names
  • p is the serial number of the hot words
  • 1 ⁇ p ⁇ P is the total number of hot words
  • m is the time of each sub-period according to time
  • the serial number sequentially arranged 1 ⁇ m ⁇ M
  • EntExpNum q,p,m is the frequency of exposure of the qth enterprise name in the preferred text information containing the pth hot word in the mth sub-period
  • k m is Preset weight coefficient
  • Rel q,p is the degree of association between the qth business name and the pth hot word.
  • FIG. 5 is a schematic block diagram of a hot word analysis terminal device provided by an embodiment of the present application. For convenience of description, only parts related to the embodiment of the present application are shown.
  • the hot word analysis terminal device 5 may be a computing device such as a mobile phone, a tablet computer, a desktop computer, a notebook, and a cloud server.
  • the hot word analysis terminal device 5 may include a processor 50, a memory 51, and computer readable instructions 52 stored in the memory 51 and operable on the processor 50, such as performing the hot word analysis method described above.
  • the processor 50 executes the steps in the embodiments of the various hot word analysis methods described above when the computer readable instructions 52 are executed.
  • the functional units in the various embodiments of the present application may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of computer readable instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.

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Abstract

一种热词分析方法、计算机可读存储介质、终端设备及装置,应用于计算机技术领域。所述方法通过搜索引擎爬取当前统计周期内在目标网站上发布的网页(S101);对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词(S102);统计各个分词在所述文本信息中的曝光频次(S103);将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词(S104);统计各个企业名称在优选文本信息中的曝光频次(S105);根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度(S106)。该方法为热词的确定提供了一套客观的评估标准,而且在得到热词之后,综合考虑了企业与热词之间的关系,分析结果对于企业具有更强的指导意义。

Description

热词分析方法、计算机可读存储介质、终端设备及装置
本申请要求于2018年5月14日提交中国专利局、申请号为201810456973.4、发明名称为“一种热词分析方法、计算机可读存储介质及终端设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请属于计算机技术领域,尤其涉及一种热词分析方法、计算机可读存储介质、终端设备及装置。
背景技术
热词,即网络热门词汇,是指一种词汇现象,反映了一个国家、一个地区在一个时期人们普遍关注的问题和事物。热词具有时代特征,可以作为一个时期的热点话题及民生问题的代表。
目前对于热词的确定,主要是由网络分析人员根据自己在互联网上所浏览到信息进行处理所得到的,这种方式依赖于网络分析人员个人的判断,主观性极强,难以客观地反应真实的热词情况,而且在得到热词之后,往往仅仅是只针对热词进行片面的分析,分析维度单一,分析结果对于企业的指导意义极差。
技术问题
有鉴于此,本申请实施例提供了一种热词分析方法、计算机可读存储介质、终端设备及装置,以解决现有技术中热词的确定过程主观性极强且分析结果对于企业的指导意义极差的问题。
技术解决方案
本申请实施例的第一方面提供了一种热词分析方法,可以包括:
通过搜索引擎爬取当前统计周期内在目标网站上发布的网页,所述目标网站为浏览量大于预设的浏览量阈值的网站;
对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词;
统计各个分词在所述文本信息中的曝光频次;
将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词;
统计各个企业名称在优选文本信息中的曝光频次,所述优选文本信息为包含所述热词的文本信息;
根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
本申请实施例的第二方面提供了一种计算机可读存储介质,所述计算机可读存储介质存储有计算机可读指令,所述计算机可读指令被处理器执行时实现上述热词分析方法的步骤。
本申请实施例的第三方面提供了一种热词分析终端设备,包括存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机可读指令,所述处理器执行 所述计算机可读指令时实现上述热词分析方法的步骤。
本申请实施例的第四方面提供了一种热词分析装置,可以包括用于实现上述热词分析方法的步骤的模块。
有益效果
本申请实施例与现有技术相比存在的有益效果是:本申请实施例为热词的确定提供了一套客观的评估标准,摆脱了对网络分析人员个人能力的依赖,确定出的热词能够更加难以客观地反应真实的情况,而且在得到热词之后,综合考虑了企业与热词之间的关系,分析结果对于企业具有更强的指导意义。
附图说明
图1为本申请实施例中一种热词分析方法的一个实施例流程图;
图2为第一曝光阈值和第二曝光阈值的设置过程在一种具体实现中的示意流程图;
图3为第一曝光阈值和第二曝光阈值的设置过程在另一种具体实现中的示意流程图;
图4为本申请实施例中一种热词分析装置的一个实施例结构图;
图5为本申请实施例中一种热词分析终端设备的示意框图。
本发明的实施方式
请参阅图1,本申请实施例中一种热词分析方法的一个实施例可以包括:
步骤S101、通过搜索引擎爬取当前统计周期内在目标网站上发布的网页。
所述目标网站为浏览量大于预设的浏览量阈值的网站,可以根据实际情况将所述浏览量阈值设置为10万次、50万次、100万次等等,所述目标网站可以是百度新闻(http://news.baidu.com/)、网易新闻(http://news.163.com/)、腾讯新闻(http://news.qq.com/)、凤凰新闻(http://news.ifeng.com/)等新闻网站或者其它的新闻网站。
统计周期可以根据实际情况设置为一天、一周、半个月或者一个月等等。
步骤S102、对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词。
切词处理是指将一个语句文本切分成一个一个单独的词,也即各个所述分词,在本实施例中,可以根据通用词典对语句文本进行切分,保证分出的词语都是正常词汇,如词语不在词典内则分出单字。
步骤S103、统计各个分词在所述文本信息中的曝光频次。
也即分别统计各个分词在所述文本信息中出现的次数。
步骤S104、将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词。
例如,可以设置所述第一曝光阈值为10000,若在当前统计周期内,“十九大”的曝光频次为20000,大于了所述第一曝光阈值,则直接将其确认为热词。
可选地,还可以将在所述文本信息中的曝光频次小于或等于所述第一曝光阈值且 大于预设的第二曝光阈值的分词确定为候选分词,然后从历史统计记录中获取各个候选分词在所述当前统计周期之前的T个统计周期内的曝光频次,将满足下述条件的候选分词也确定为热词:
对于任意的t的取值,不等式
Figure PCTCN2018096267-appb-000001
均成立。
其中,n为所述候选分词的序号,1≤n≤N,N为所述候选分词的总数,t为各个统计周期按照时间先后顺序依次排列的序号,1≤t≤T,T为正整数,ExpNum n,t为第n个候选分词在第t个统计周期内的曝光频次,ExpNum n,T+1为第n个候选分词在所述当前统计周期内的曝光频次,ln为自然对数函数,ThreshRatio为预设的比例阈值。
例如,可以设置所述第二曝光阈值为2000,所述比值阈值为2,且T=1。若在当前统计周期内,“雄安新区”的曝光频次为9000,小于所述第一曝光阈值,但是大于所述第二曝光阈值,则获取其在当前统计周期之前的1个统计周期内的曝光频次,若上一统计周期内的曝光频次为1000,不等式
Figure PCTCN2018096267-appb-000002
成立,则将其也确定为热词。
若在当前统计周期内,“人工智能”的曝光量为1500次,不仅小于所述第一曝光阈值,且小于所述第二曝光阈值,则直接将其确认为普通词语。
进一步地,还可以对确定出的热词进行过滤,也即从确定出的热词中将产生干扰的词语过滤掉,可以预先设置好一些常见的干扰热词,例如,像“我们”、“大家”、“这个”等等。这些干扰热词的曝光频次与新闻内容并无任何关系,也即不管新闻内容是什么,这些干扰热词的曝光频次都可能保持大于所述第一曝光阈值。在做热词统计时,如果不对这些干扰热词进行过滤处理,则会影响分析结果的准确度,因而需要从确定出的热词中滤除干扰热词,得到过滤后的热词,也即得到真正所需的热词。具体地,在确定出热词之后,可以再从数据列表中获取预先设定的干扰热词,然后,将所有确定出的热词与所有的干扰热词逐一对比,如果某个热词与某个干扰热词一致,则将其滤除,否则,如果某个热词与任何一个干扰热词都不一致,则保留该热词,最后被保留下来的热词即为过滤后的热词。
步骤S105、统计各个企业名称在优选文本信息中的曝光频次。
所述优选文本信息为包含所述热词的文本信息。
可选地,所述当前统计周期可以包括M个子周期,其中,M为正整数,则需统计各个企业名称在各个子时间段的优选文本信息中的曝光频次。
步骤S106、根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
具体地,可以根据下式计算各个企业名称与所述热词之间的关联度:
Figure PCTCN2018096267-appb-000003
其中,q为企业名称的序号,1≤q≤Q,Q为企业名称的总数,p为热词的序号,1≤p≤P,P为热词的总数,m为各个子时间段按照时间先后顺序依次排列的序号,1≤m≤M,EntExpNum q,p,m为第m个子时间段内第q个企业名称在包含第p个热词的优选文本信息中的曝光频次,k m为预设的权值系数,
Figure PCTCN2018096267-appb-000004
Rel q,p为第q个企业名称与第p个热词之间的关联度。
特殊地,若企业名称A与所述热词B之间的关联度超过预设的关联度阈值,则可以认为两者是唯一匹配的,所述关联度阈值可以根据实际情况设置为80%、90%或者95%等等。
例如,若要对热词“王者荣耀”进行企业关联分析,则在包含该热词的文本信息中搜索企业名称,统计各个企业名称的曝光频次,并按照上述公式计算各个企业名称与该热词之间的关联度,若关联度排序结果第一位为腾讯,且其与该热词之间的关联度为98%,超过了所述关联度阈值,则确定与热词“王者荣耀”唯一匹配的企业名称为腾讯。
以上是通过热词关联对应的企业,另一个关联角度是通过企业关联对应的热词。具体地,在网页中搜索出现该企业名称的文本信息,然后在出现该企业的文本信息中搜索热词,统计各个热词出现的频次,并按照频次从大到小的顺序对热词进行排序,排序越靠前的热词与该企业的关联度越高,排序越靠后的热词与该企业的关联度越低。
例如,若要对腾讯进行热词关联分析,则在网页中搜索出现腾讯的文本信息,然后在这些文本信息中搜索热词,统计各个热词出现的频次,并按照频次从大到小的顺序对热词进行排序,若排序结果从大到小依次为:“王者荣耀”、“绝地求生”、“光荣使命”……,则可确定当前与腾讯关联度最高的热词分别为“王者荣耀”、“绝地求生”、“光荣使命”……。
进一步地,在进行企业关联分析时,企业名称应包括其别称在内,例如,对腾讯进行关联分析时,不仅要搜索“腾讯”,还需搜索“Tencent”“鹅厂”等,对阿里巴巴进行关联分析时,不仅要搜索“阿里巴巴”,还需搜索“Alibaba”“阿里”等。具体地,可以预先设置企业名称的别称列表,记录企业的正式名称与别称之间的对应关系,当进行企业关联分析时,从该列表中获取个企业对应的别称,将该别称也计入对企业的统计过程中。
在本申请实施例的一种具体实现中,所述第一曝光阈值和所述第二曝光阈值的设置过程可以包括如图2所示的步骤:
步骤S201、从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次。
所述历史热词为在所述当前统计周期之前已经确定的热词。
步骤S202、构造各个历史热词的第一曝光序列。
具体地,可以根据下式构造各个历史热词的第一曝光序列:
Figure PCTCN2018096267-appb-000005
其中,nh为所述历史热词的序号,1≤nh≤NH,NH为所述历史热词的总数,th为各个统计周期按照时间先后顺序依次排列的序号,1≤th≤TH nh,TH nh为第nh个历史热词的统计周期的总数,HsExpNum nh,th为第nh个历史热词在第th个统计周期内的曝光频次,ExpSeq1 nh为第nh个历史热词的第一曝光序列。
步骤S203、计算各个第一曝光序列的均值。
具体地,可以根据下式计算各个第一曝光序列的均值:
Figure PCTCN2018096267-appb-000006
其中,AvExpSeq1 nh为第nh个第一曝光序列的均值。
步骤S204、构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列。
具体地,可以根据下式构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列:
{AvExpSeq1 1′,AvExpSeq1 2′,......,AvExpSeq1 nh1′,......,AvExpSeq1 NH′}
其中,AvExpSeq1 nh1′为按照从大到小的顺序排列在第nh1位上的第一曝光序列的均值,1≤nh1≤NH。
步骤S205、计算所述第一曝光阈值和所述第二曝光阈值。
具体地,可以根据下式计算所述第一曝光阈值:
Figure PCTCN2018096267-appb-000007
其中,NMAX=floor(ξ max×NH),ξ max为预设的系数,且0<ξ max<1,floor为向下取值函数,Threshold1为所述第一曝光阈值;
根据下式计算所述第二曝光阈值:
Figure PCTCN2018096267-appb-000008
其中,NMIN=floor(ξ min×NH),ξ min为预设的系数,且0<ξ min<1,Threshold2为所述第二曝光阈值。
在本申请实施例的另一种具体实现中,所述第一曝光阈值和所述第二曝光阈值的设置过程可以包括如图3所示的步骤:
步骤S301、从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次。
步骤S302、构造各个历史热词的第一曝光序列。
步骤S303、计算各个第一曝光序列的均值。
其中,步骤S301-步骤S303的过程与步骤S201-步骤S203的过程相同,具体可参照上述说明,在此不再赘述。
步骤S304、构造各个历史热词的第二曝光序列。
具体地,可以根据下式构造各个历史热词的第二曝光序列:
Figure PCTCN2018096267-appb-000009
其中,HsExpNum nh,th1′∈ExpSeq1 nh,1≤th1≤TH nh,HsExpNum nh,th1′≥HsExpNum nh,th1+1′,ExpSeq2 nh为第nh个历史热词的第二曝光序列。
步骤S305、计算各个第二曝光序列的均值。
具体地,可以根据下式计算各个第二曝光序列的均值:
Figure PCTCN2018096267-appb-000010
其中,AvExpSeq2 nh为第nh个第二曝光序列的均值,TH1 nh满足以下条件:HsExpNum nh,TH1′≥AvExpSeq1 nh且HsExpNum nh,TH1+1′<AvExpSeq1 nh
步骤S306、构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列。
具体地,可以根据下式构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列:
{AvExpSeq2 1′,AvExpSeq2 2′,......,AvExpSeq2 nh1′,......,AvExpSeq2 NH′}
其中,AvExpSeq2 nh1′为按照从大到小的顺序排列在第nh1位上的第二曝光序列的均值。
步骤S307、计算所述第一曝光阈值和所述第二曝光阈值。
具体地,可以根据下式计算所述第一曝光阈值:
Figure PCTCN2018096267-appb-000011
根据下式计算所述第二曝光阈值:
Figure PCTCN2018096267-appb-000012
综上所述,本申请实施例为热词的确定提供了一套客观的评估标准,摆脱了对网络分析人员个人能力的依赖,确定出的热词能够更加难以客观地反应真实的情况,而且在得到热词之后,综合考虑了企业与热词之间的关系,分析结果对于企业具有更强的指导意义。
对应于上文实施例所述的一种热词分析方法,图4示出了本申请实施例提供的一种热词分析装置的一个实施例结构图。
本实施例中,一种热词分析装置可以包括:
网页爬取模块401,用于通过搜索引擎爬取当前统计周期内在目标网站上发布的网页,所述目标网站为浏览量大于预设的浏览量阈值的网站;
切词处理模块402,用于对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词;
第一统计模块403,用于统计各个分词在所述文本信息中的曝光频次;
第一热词确定模块404,用于将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词;
第二统计模块405,用于统计各个企业名称在优选文本信息中的曝光频次,所述优选文本信息为包含所述热词的文本信息;
关联度计算模块406,用于根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
进一步地,所述热词分析装置还可以包括:
候选分词确定模块,用于将在所述文本信息中的曝光频次小于或等于所述第一曝光阈值且大于预设的第二曝光阈值的分词确定为候选分词;
第三统计模块,用于从历史统计记录中获取各个候选分词在所述当前统计周期之前的T个统计周期内的曝光频次,其中,T为正整数;
第二热词确定模块,用于将满足下述条件的候选分词确定为热词:
对于任意的t的取值,不等式
Figure PCTCN2018096267-appb-000013
均成立,其中,n为所述候选分词的序号,1≤n≤N,N为所述候选分词的总数,t为各个统计周期按照时间先后顺序依次排列的序号,1≤t≤T,ExpNum n,t为第n个候选分词在第t个统计周期内的曝光频次,ExpNum n,T+1为第n个候选分词在所述当前统计周期内的曝光频次,ln为自然对数函数,ThreshRatio为预设的比例阈值;
进一步地,所述热词分析装置还可以包括:
第四统计模块,用于从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次,所述历史热词为在所述当前统计周期之前已经确定的热词;
第一曝光序列构造模块,用于根据下式构造各个历史热词的第一曝光序列:
Figure PCTCN2018096267-appb-000014
其中,nh为所述历史热词的序号,1≤nh≤NH,NH为所述历史热词的总数,th为各个统计周期按照时间先后顺序依次排列的序号,1≤th≤TH nh,TH nh为第nh个历史热词的统计周期的总数,HsExpNum nh,th为第nh个历史热词在第th个统计周期内的曝光频次,ExpSeq1 nh为第nh个历史热词的第一曝光序列;
第一曝光序列均值计算模块,用于根据下式计算各个第一曝光序列的均值:
Figure PCTCN2018096267-appb-000015
其中,AvExpSeq1 nh为第nh个第一曝光序列的均值;
第一均值序列构造模块,用于根据下式构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列:
{AvExpSeq1 1′,AvExpSeq1 2′,......,AvExpSeq1 nh1′,......,AvExpSeq1 NH′}
其中,AvExpSeq1 nh1′为按照从大到小的顺序排列在第nh1位上的第一曝光序列的均值,1≤nh1≤NH;
第一曝光阈值计算模块,用于根据下式计算所述第一曝光阈值:
Figure PCTCN2018096267-appb-000016
其中,NMAX=floor(ξ max×NH),ξ max为预设的系数,且0<ξ max<1,floor为向下取值函数,Threshold1为所述第一曝光阈值;
第二曝光阈值计算模块,用于根据下式计算所述第二曝光阈值:
Figure PCTCN2018096267-appb-000017
其中,NMIN=floor(ξ min×NH),ξ min为预设的系数,且0<ξ min<1,Threshold2为所述第二曝光阈值。
进一步地,所述热词分析装置还可以包括:
第二曝光序列构造模块,用于根据下式构造各个历史热词的第二曝光序列:
Figure PCTCN2018096267-appb-000018
其中,HsExpNum nh,th1′∈ExpSeq1 nh,1≤th1≤TH nh,HsExpNum nh,th1′≥HsExpNum nh,th1+1′,ExpSeq2 nh为第nh个历史热词的第二曝光序列;
第二曝光序列均值计算模块,用于根据下式计算各个第二曝光序列的均值:
Figure PCTCN2018096267-appb-000019
其中,AvExpSeq2 nh为第nh个第二曝光序列的均值,TH1 nh满足以下条件:HsExpNum nh,TH1′≥AvExpSeq1 nh且HsExpNum nh,TH1+1′<AvExpSeq1 nh
第二均值序列构造模块,用于根据下式构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列:
{AvExpSeq2 1′,AvExpSeq2 2′,......,AvExpSeq2 nh1′,......,AvExpSeq2 NH′}
其中,AvExpSeq2 nh1′为按照从大到小的顺序排列在第nh1位上的第二曝光序列的均值;
第一曝光阈值计算模块,用于根据下式计算所述第一曝光阈值:
Figure PCTCN2018096267-appb-000020
第二曝光阈值计算模块,用于根据下式计算所述第二曝光阈值:
Figure PCTCN2018096267-appb-000021
进一步地,所述当前统计周期包括M个子周期,其中,M为正整数,所述第二统计模块可以包括:
子时间段统计单元,用于统计各个企业名称在各个子时间段的优选文本信息中的曝光频次;
所述关联度计算模块可以包括:
第一计算单元,用于根据下式计算各个企业名称与所述热词之间的关联度:
Figure PCTCN2018096267-appb-000022
其中,q为企业名称的序号,1≤q≤Q,Q为企业名称的总数,p为热词的序号,1≤p≤P,P为热词的总数,m为各个子时间段按照时间先后顺序依次排列的序号,1≤m≤M,EntExpNum q,p,m为第m个子时间段内第q个企业名称在包含第p个热词的优选文本信息中的曝光频次,k m为预设的权值系数,k m<k m+1
Figure PCTCN2018096267-appb-000023
Rel q,p为第q个企业名称与第p个热词之间的关联度。
图5示出了本申请实施例提供的一种热词分析终端设备的示意框图,为了便于说明,仅示出了与本申请实施例相关的部分。
在本实施例中,所述热词分析终端设备5可以是手机、平板电脑、桌上型计算机、笔记本及云端服务器等计算设备。该热词分析终端设备5可包括:处理器50、存储器51以及存储在所述存储器51中并可在所述处理器50上运行的计算机可读指令52,例如执行上述的热词分析方法的计算机可读指令。所述处理器50执行所述计算机可读指令52时实现上述各个热词分析方法实施例中的步骤。
在本申请各个实施例中的各功能单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读存储介质中。基于这样的理解,本 申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干计算机可读指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。

Claims (20)

  1. 一种热词分析方法,其特征在于,包括:
    通过搜索引擎爬取当前统计周期内在目标网站上发布的网页,所述目标网站为浏览量大于预设的浏览量阈值的网站;
    对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词;
    统计各个分词在所述文本信息中的曝光频次;
    将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词;
    统计各个企业名称在优选文本信息中的曝光频次,所述优选文本信息为包含所述热词的文本信息;
    根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
  2. 根据权利要求1所述的热词分析方法,其特征在于,在所述统计各个分词在所述文本信息中的曝光频次之后,还包括:
    将在所述文本信息中的曝光频次小于或等于所述第一曝光阈值且大于预设的第二曝光阈值的分词确定为候选分词;
    从历史统计记录中获取各个候选分词在所述当前统计周期之前的T个统计周期内的曝光频次,其中,T为正整数;
    将满足下述条件的候选分词确定为热词:
    对于任意的t的取值,不等式
    Figure PCTCN2018096267-appb-100001
    均成立,其中,n为所述候选分词的序号,1≤n≤N,N为所述候选分词的总数,t为各个统计周期按照时间先后顺序依次排列的序号,1≤t≤T,ExpNum n,t为第n个候选分词在第t个统计周期内的曝光频次,ExpNum n,T+1为第n个候选分词在所述当前统计周期内的曝光频次,ln为自然对数函数,ThreshRatio为预设的比例阈值;
  3. 根据权利要求2所述的热词分析方法,其特征在于,所述第一曝光阈值和所述第二曝光阈值的设置过程包括:
    从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次,所述历史热词为在所述当前统计周期之前已经确定的热词;
    根据下式构造各个历史热词的第一曝光序列:
    Figure PCTCN2018096267-appb-100002
    其中,nh为所述历史热词的序号,1≤nh≤NH,NH为所述历史热词的总数,th为各个统计周期按照时间先后顺序依次排列的序号,1≤th≤TH nh,TH nh为第nh个历史热词的统计周期的总数,HsExpNum nh,th为第nh个历史热词在第th个统计周期内的曝光频次,ExpSeq1 nh为第nh个历史热词的第一曝光序列;
    根据下式计算各个第一曝光序列的均值:
    Figure PCTCN2018096267-appb-100003
    其中,AvExpSeq1 nh为第nh个第一曝光序列的均值;
    根据下式构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq1 1′,AvExpSeq1 2′,......,AvExpSeq1 nh1′,......,AvExpSeq1 NH′}
    其中,AvExpSeq1 nh1′为按照从大到小的顺序排列在第nh1位上的第一曝光序列的均值,1≤nh1≤NH;
    根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100004
    其中,NMAX=floor(ξ max×NH),ξ max为预设的系数,且0<ξ max<1,floor为向下取值函数,Threshold1为所述第一曝光阈值;
    根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100005
    其中,NMIN=floor(ξ min×NH),ξ min为预设的系数,且0<ξ min<1,Threshold2为所述第二曝光阈值。
  4. 根据权利要求3所述的热词分析方法,其特征在于,在计算各个第一曝光序列的均值之后,还包括:
    根据下式构造各个历史热词的第二曝光序列:
    Figure PCTCN2018096267-appb-100006
    其中,HsExpNum nh,th1′∈ExpSeq1 nh,1≤th1≤TH nh,HsExpNum nh,th1′≥HsExpNum nh,th1+1′,ExpSeq2 nh为第nh个历史热词的第二曝光序列;
    根据下式计算各个第二曝光序列的均值:
    Figure PCTCN2018096267-appb-100007
    其中,AvExpSeq2 nh为第nh个第二曝光序列的均值,TH1 nh满足以下条件:HsExpNum nh,TH1′≥AvExpSeq1 nh且HsExpNum nh,TH1+1′<AvExpSeq1 nh
    根据下式构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq2 1′,AvExpSeq2 2′,......,AvExpSeq2 nh1′,......,AvExpSeq2 NH′}
    其中,AvExpSeq2 nh1′为按照从大到小的顺序排列在第nh1位上的第二曝光序列的均值;
    根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100008
    根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100009
  5. 根据权利要求1至4中任一项所述的热词分析方法,其特征在于,所述当前统计周期包括M个子周期,其中,M为正整数,所述统计各个企业名称在优选文本信息中的曝光频次包括:
    统计各个企业名称在各个子时间段的优选文本信息中的曝光频次;
    所述根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度包括:
    根据下式计算各个企业名称与所述热词之间的关联度:
    Figure PCTCN2018096267-appb-100010
    其中,q为企业名称的序号,1≤q≤Q,Q为企业名称的总数,p为热词的序号,1≤p≤P,P为热词的总数,m为各个子时间段按照时间先后顺序依次排列的序号,1≤m≤M,EntExpNum q,p,m为第m个子时间段内第q个企业名称在包含第p个热词的优选文本信息中的曝光频次,k m为预设的权值系数,k m<k m+1
    Figure PCTCN2018096267-appb-100011
    Rel q,p为第q个企业名称与第p个热词之间的关联度。
  6. 一种计算机可读存储介质,所述计算机可读存储介质存储有计算机可读指令,其特征在于,所述计算机可读指令被处理器执行时实现如下步骤:
    通过搜索引擎爬取当前统计周期内在目标网站上发布的网页,所述目标网站为浏览量大于预设的浏览量阈值的网站;
    对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词;
    统计各个分词在所述文本信息中的曝光频次;
    将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词;
    统计各个企业名称在优选文本信息中的曝光频次,所述优选文本信息为包含所述热词的文本信息;
    根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
  7. 根据权利要求6所述的计算机可读存储介质,其特征在于,在所述统计各个分 词在所述文本信息中的曝光频次之后,还包括:
    将在所述文本信息中的曝光频次小于或等于所述第一曝光阈值且大于预设的第二曝光阈值的分词确定为候选分词;
    从历史统计记录中获取各个候选分词在所述当前统计周期之前的T个统计周期内的曝光频次,其中,T为正整数;
    将满足下述条件的候选分词确定为热词:
    对于任意的t的取值,不等式
    Figure PCTCN2018096267-appb-100012
    均成立,其中,n为所述候选分词的序号,1≤n≤N,N为所述候选分词的总数,t为各个统计周期按照时间先后顺序依次排列的序号,1≤t≤T,ExpNum n,t为第n个候选分词在第t个统计周期内的曝光频次,ExpNum n,T+1为第n个候选分词在所述当前统计周期内的曝光频次,ln为自然对数函数,ThreshRatio为预设的比例阈值;
  8. 根据权利要求7所述的计算机可读存储介质,其特征在于,所述第一曝光阈值和所述第二曝光阈值的设置过程包括:
    从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次,所述历史热词为在所述当前统计周期之前已经确定的热词;
    根据下式构造各个历史热词的第一曝光序列:
    Figure PCTCN2018096267-appb-100013
    其中,nh为所述历史热词的序号,1≤nh≤NH,NH为所述历史热词的总数,th为各个统计周期按照时间先后顺序依次排列的序号,1≤th≤TH nh,TH nh为第nh个历史热词的统计周期的总数,HsExpNum nh,th为第nh个历史热词在第th个统计周期内的曝光频次,ExpSeq1 nh为第nh个历史热词的第一曝光序列;
    根据下式计算各个第一曝光序列的均值:
    Figure PCTCN2018096267-appb-100014
    其中,AvExpSeq1 nh为第nh个第一曝光序列的均值;
    根据下式构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq1 1′,AvExpSeq1 2′,......,AvExpSeq1 nh1′,......,AvExpSeq1 NH′}
    其中,AvExpSeq1 nh1′为按照从大到小的顺序排列在第nh1位上的第一曝光序列的均值,1≤nh1≤NH;
    根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100015
    其中,NMAX=floor(ξ max×NH),ξ max为预设的系数,且0<ξ max<1,floor为向下 取值函数,Threshold1为所述第一曝光阈值;
    根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100016
    其中,NMIN=floor(ξ min×NH),ξ min为预设的系数,且0<ξ min<1,Threshold2为所述第二曝光阈值。
  9. 根据权利要求8所述的计算机可读存储介质,其特征在于,在计算各个第一曝光序列的均值之后,还包括:
    根据下式构造各个历史热词的第二曝光序列:
    Figure PCTCN2018096267-appb-100017
    其中,HsExpNum nh,th1′∈ExpSeq1 nh,1≤th1≤TH nh,HsExpNum nh,th1′≥HsExpNum nh,th1+1′,ExpSeq2 nh为第nh个历史热词的第二曝光序列;
    根据下式计算各个第二曝光序列的均值:
    Figure PCTCN2018096267-appb-100018
    其中,AvExpSeq2 nh为第nh个第二曝光序列的均值,TH1 nh满足以下条件:HsExpNum nh,TH1′≥AvExpSeq1 nh且HsExpNum nh,TH1+1′<AvExpSeq1 nh
    根据下式构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq2 1′,AvExpSeq2 2′,......,AvExpSeq2 nh1′,......,AvExpSeq2 NH′}
    其中,AvExpSeq2 nh1′为按照从大到小的顺序排列在第nh1位上的第二曝光序列的均值;
    根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100019
    根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100020
  10. 根据权利要求6至9中任一项所述的计算机可读存储介质,其特征在于,所述当前统计周期包括M个子周期,其中,M为正整数,所述统计各个企业名称在优选文本信息中的曝光频次包括:
    统计各个企业名称在各个子时间段的优选文本信息中的曝光频次;
    所述根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所 述热词之间的关联度包括:
    根据下式计算各个企业名称与所述热词之间的关联度:
    Figure PCTCN2018096267-appb-100021
    其中,q为企业名称的序号,1≤q≤Q,Q为企业名称的总数,p为热词的序号,1≤p≤P,P为热词的总数,m为各个子时间段按照时间先后顺序依次排列的序号,1≤m≤M,EntExpNum q,p,m为第m个子时间段内第q个企业名称在包含第p个热词的优选文本信息中的曝光频次,k m为预设的权值系数,k m<k m+1
    Figure PCTCN2018096267-appb-100022
    Rel q,p为第q个企业名称与第p个热词之间的关联度。
  11. 一种热词分析终端设备,包括存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机可读指令,其特征在于,所述处理器执行所述计算机可读指令时实现如下步骤:
    通过搜索引擎爬取当前统计周期内在目标网站上发布的网页,所述目标网站为浏览量大于预设的浏览量阈值的网站;
    对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词;
    统计各个分词在所述文本信息中的曝光频次;
    将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词;
    统计各个企业名称在优选文本信息中的曝光频次,所述优选文本信息为包含所述热词的文本信息;
    根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
  12. 根据权利要求11所述的热词分析终端设备,其特征在于,在所述统计各个分词在所述文本信息中的曝光频次之后,还包括:
    将在所述文本信息中的曝光频次小于或等于所述第一曝光阈值且大于预设的第二曝光阈值的分词确定为候选分词;
    从历史统计记录中获取各个候选分词在所述当前统计周期之前的T个统计周期内的曝光频次,其中,T为正整数;
    将满足下述条件的候选分词确定为热词:
    对于任意的t的取值,不等式
    Figure PCTCN2018096267-appb-100023
    均成立,其中,n为所述候选分词的序号,1≤n≤N,N为所述候选分词的总数,t为各个统计周期按照时间先后顺序依次排列的序号,1≤t≤T,ExpNum n,t为第n个候选分词在第t个统计周期内的曝光频次,ExpNum n,T+1为第n个候选分词在所述当前统计周期内的曝光频次,ln为自 然对数函数,ThreshRatio为预设的比例阈值;
  13. 根据权利要求12所述的热词分析终端设备,其特征在于,所述第一曝光阈值和所述第二曝光阈值的设置过程包括:
    从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次,所述历史热词为在所述当前统计周期之前已经确定的热词;
    根据下式构造各个历史热词的第一曝光序列:
    Figure PCTCN2018096267-appb-100024
    其中,nh为所述历史热词的序号,1≤nh≤NH,NH为所述历史热词的总数,th为各个统计周期按照时间先后顺序依次排列的序号,1≤th≤TH nh,TH nh为第nh个历史热词的统计周期的总数,HsExpNum nh,th为第nh个历史热词在第th个统计周期内的曝光频次,ExpSeq1 nh为第nh个历史热词的第一曝光序列;
    根据下式计算各个第一曝光序列的均值:
    Figure PCTCN2018096267-appb-100025
    其中,AvExpSeq1 nh为第nh个第一曝光序列的均值;
    根据下式构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq1 1′,AvExpSeq1 2′,......,AvExpSeq1 nh1′,......,AvExpSeq1 NH′}
    其中,AvExpSeq1 nh1′为按照从大到小的顺序排列在第nh1位上的第一曝光序列的均值,1≤nh1≤NH;
    根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100026
    其中,NMAX=floor(ξ max×NH),ξ max为预设的系数,且0<ξ max<1,floor为向下取值函数,Threshold1为所述第一曝光阈值;
    根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100027
    其中,NMIN=floor(ξ min×NH),ξ min为预设的系数,且0<ξ min<1,Threshold2为所述第二曝光阈值。
  14. 根据权利要求13所述的热词分析终端设备,其特征在于,在计算各个第一曝光序列的均值之后,还包括:
    根据下式构造各个历史热词的第二曝光序列:
    Figure PCTCN2018096267-appb-100028
    其中,HsExpNum nh,th1′∈ExpSeq1 nh,1≤th1≤TH nh,HsExpNum nh,th1′≥HsExpNum nh,th1+1′,ExpSeq2 nh为第nh个历史热词的第二曝光序列;
    根据下式计算各个第二曝光序列的均值:
    Figure PCTCN2018096267-appb-100029
    其中,AvExpSeq2 nh为第nh个第二曝光序列的均值,TH1 nh满足以下条件:HsExpNum nh,TH1′≥AvExpSeq1 nh且HsExpNum nh,TH1+1′<AvExpSeq1 nh
    根据下式构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq2 1′,AvExpSeq2 2′,......,AvExpSeq2 nh1′,......,AvExpSeq2 NH′}
    其中,AvExpSeq2 nh1′为按照从大到小的顺序排列在第nh1位上的第二曝光序列的均值;
    根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100030
    根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100031
  15. 根据权利要求11至14中任一项所述的热词分析终端设备,其特征在于,所述当前统计周期包括M个子周期,其中,M为正整数,所述统计各个企业名称在优选文本信息中的曝光频次包括:
    统计各个企业名称在各个子时间段的优选文本信息中的曝光频次;
    所述根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度包括:
    根据下式计算各个企业名称与所述热词之间的关联度:
    Figure PCTCN2018096267-appb-100032
    其中,q为企业名称的序号,1≤q≤Q,Q为企业名称的总数,p为热词的序号,1≤p≤P,P为热词的总数,m为各个子时间段按照时间先后顺序依次排列的序号,1≤m≤M,EntExpNum q,p,m为第m个子时间段内第q个企业名称在包含第p个热词的优选文本信息中的曝光频次,k m为预设的权值系数,k m<k m+1
    Figure PCTCN2018096267-appb-100033
    Rel q,p为第q 个企业名称与第p个热词之间的关联度。
  16. 一种热词分析装置,其特征在于,包括:
    网页爬取模块,用于通过搜索引擎爬取当前统计周期内在目标网站上发布的网页,所述目标网站为浏览量大于预设的浏览量阈值的网站;
    切词处理模块,用于对所述网页中的文本信息进行切词处理,得到构成所述文本信息的各个分词;
    第一统计模块,用于统计各个分词在所述文本信息中的曝光频次;
    第一热词确定模块,用于将在所述文本信息中的曝光频次大于预设的第一曝光阈值的分词确定为热词;
    第二统计模块,用于统计各个企业名称在优选文本信息中的曝光频次,所述优选文本信息为包含所述热词的文本信息;
    关联度计算模块,用于根据各个企业名称在所述优选文本信息中的曝光频次计算各个企业名称与所述热词之间的关联度。
  17. 根据权利要求16所述的热词分析装置,其特征在于,还包括:
    候选分词确定模块,用于将在所述文本信息中的曝光频次小于或等于所述第一曝光阈值且大于预设的第二曝光阈值的分词确定为候选分词;
    第三统计模块,用于从历史统计记录中获取各个候选分词在所述当前统计周期之前的T个统计周期内的曝光频次,其中,T为正整数;
    第二热词确定模块,用于将满足下述条件的候选分词确定为热词:
    对于任意的t的取值,不等式
    Figure PCTCN2018096267-appb-100034
    均成立,其中,n为所述候选分词的序号,1≤n≤N,N为所述候选分词的总数,t为各个统计周期按照时间先后顺序依次排列的序号,1≤t≤T,ExpNum n,t为第n个候选分词在第t个统计周期内的曝光频次,ExpNum n,T+1为第n个候选分词在所述当前统计周期内的曝光频次,ln为自然对数函数,ThreshRatio为预设的比例阈值;
  18. 根据权利要求17所述的热词分析装置,其特征在于,还包括:
    第四统计模块,用于从历史统计记录中获取各个历史热词在各个统计周期内的曝光频次,所述历史热词为在所述当前统计周期之前已经确定的热词;
    第一曝光序列构造模块,用于根据下式构造各个历史热词的第一曝光序列:
    Figure PCTCN2018096267-appb-100035
    其中,nh为所述历史热词的序号,1≤nh≤NH,NH为所述历史热词的总数,th为各个统计周期按照时间先后顺序依次排列的序号,1≤th≤TH nh,TH nh为第nh个历史热词的统计周期的总数,HsExpNum nh,th为第nh个历史热词在第th个统计周期内的曝光频次,ExpSeq1 nh为第nh个历史热词的第一曝光序列;
    第一曝光序列均值计算模块,用于根据下式计算各个第一曝光序列的均值:
    Figure PCTCN2018096267-appb-100036
    其中,AvExpSeq1 nh为第nh个第一曝光序列的均值;
    第一均值序列构造模块,用于根据下式构造各个第一曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq1 1′,AvExpSeq1 2′,......,AvExpSeq1 nh1′,......,AvExpSeq1 NH′}
    其中,AvExpSeq1 nh1′为按照从大到小的顺序排列在第nh1位上的第一曝光序列的均值,1≤nh1≤NH;
    第一曝光阈值计算模块,用于根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100037
    其中,NMAX=floor(ξ max×NH),ξ max为预设的系数,且0<ξ max<1,floor为向下取值函数,Threshold1为所述第一曝光阈值;
    第二曝光阈值计算模块,用于根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100038
    其中,NMIN=floor(ξ min×NH),ξ min为预设的系数,且0<ξ min<1,Threshold2为所述第二曝光阈值。
  19. 根据权利要求18所述的热词分析装置,其特征在于,还包括:
    第二曝光序列构造模块,用于根据下式构造各个历史热词的第二曝光序列:
    Figure PCTCN2018096267-appb-100039
    其中,HsExpNum nh,th1′∈ExpSeq1 nh,1≤th1≤TH nh,HsExpNum nh,th1′≥HsExpNum nh,th1+1′,ExpSeq2 nh为第nh个历史热词的第二曝光序列;
    第二曝光序列均值计算模块,用于根据下式计算各个第二曝光序列的均值:
    Figure PCTCN2018096267-appb-100040
    其中,AvExpSeq2 nh为第nh个第二曝光序列的均值,TH1 nh满足以下条件:HsExpNum nh,TH1′≥AvExpSeq1 nh且HsExpNum nh,TH1+1′<AvExpSeq1 nh
    第二均值序列构造模块,用于根据下式构造各个第二曝光序列的均值按照从大到小的顺序依次排列的序列:
    {AvExpSeq2 1′,AvExpSeq2 2′,......,AvExpSeq2 nh1′,......,AvExpSeq2 NH′}
    其中,AvExpSeq2 nh1′为按照从大到小的顺序排列在第nh1位上的第二曝光序列的均 值;
    第一曝光阈值计算模块,用于根据下式计算所述第一曝光阈值:
    Figure PCTCN2018096267-appb-100041
    第二曝光阈值计算模块,用于根据下式计算所述第二曝光阈值:
    Figure PCTCN2018096267-appb-100042
  20. 根据权利要求16至19中任一项所述的热词分析装置,其特征在于,所述当前统计周期包括M个子周期,其中,M为正整数,所述第二统计模块包括:
    子时间段统计单元,用于统计各个企业名称在各个子时间段的优选文本信息中的曝光频次;
    所述关联度计算模块可以包括:
    第一计算单元,用于根据下式计算各个企业名称与所述热词之间的关联度:
    Figure PCTCN2018096267-appb-100043
    其中,q为企业名称的序号,1≤q≤Q,Q为企业名称的总数,p为热词的序号,1≤p≤P,P为热词的总数,m为各个子时间段按照时间先后顺序依次排列的序号,1≤m≤M,EntExpNum q,p,m为第m个子时间段内第q个企业名称在包含第p个热词的优选文本信息中的曝光频次,k m为预设的权值系数,k m<k m+1
    Figure PCTCN2018096267-appb-100044
    Rel q,p为第q个企业名称与第p个热词之间的关联度。
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