CN109325166A - Resolution rules configuration method and device in crawler system - Google Patents
Resolution rules configuration method and device in crawler system Download PDFInfo
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- CN109325166A CN109325166A CN201811117663.6A CN201811117663A CN109325166A CN 109325166 A CN109325166 A CN 109325166A CN 201811117663 A CN201811117663 A CN 201811117663A CN 109325166 A CN109325166 A CN 109325166A
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Abstract
This application involves one kind for resolution rules configuration method in crawler system, this method comprises: obtaining page data from monitoring station；It presets multiple analytical algorithms and page data is parsed one by one；The result that each analytical algorithm parses is compared, the correct analytical algorithm of parsing result is filtered out；Compare the analyzing efficiency of each correct analytical algorithm of the parsing result；Final analytical algorithm is determined according to the analyzing efficiency, and by the final parsing algorithm configuration to the monitoring station.The application, which avoids passing through human configuration resolution rules, leads to the problem of configuring time-consuming, effort, inefficiency, and improves parsing accuracy rate.
Description
Technical field
This application involves Internet resources search technique field, in especially a kind of crawler system resolution rules configuration method and
Device.
Background technique
In big data era, people can acquire the desired letter of monitoring oneself by crawlers in the website of magnanimity
Breath, but the structure of each website be it is different, crawlers how to be parsed in the website of different structure we want
Data become key.For example, news pages we be concerned with the news content in the page, but deposited in this page
In many label, button, hyperlink, advertisements etc., that requires crawlers can be inside these contents body
It parses.
In the related technology, these site pages are configured with the rule of some parsings, crawlers are according to pre-set
Rule comes out Context resolution, and still, if increasing with website quantity, rule configuration will become time-consuming, effort, low efficiency
Under.
Summary of the invention
Cause to configure time-consuming, effort, inefficiency by human configuration resolution rules to overcome at least to a certain extent
The problem of, the application provides resolution rules configuration method and device in a kind of crawler system.
In a first aspect, the application provides resolution rules configuration method in a kind of crawler system, comprising:
Page data is obtained from monitoring station；
It presets multiple analytical algorithms and page data is parsed one by one；
The result that each analytical algorithm parses is compared, the correct analytical algorithm of parsing result is filtered out；
Compare the analyzing efficiency of each correct analytical algorithm of the parsing result；
Final analytical algorithm is determined according to the analyzing efficiency, and by the final parsing algorithm configuration to the monitoring station
Point.
Further, the result that each analytical algorithm is parsed compares, and it is correct to filter out parsing result
Analytical algorithm, comprising:
By voting parsing result, it is correct for filtering out the corresponding analytical algorithm of the best parsing result of poll
Analytical algorithm.
Further, further includes: if voting results are identical for the poll of each parsing result, described in manpower intervention analysis
The feature of website, improves analytical algorithm.
Further, the analyzing efficiency of more each correct analytical algorithm of parsing result, comprising:
Resource quantity is called to be ranked up each analytical algorithm, the analyzing efficiency for the analytical algorithm for calling resource few is high；
In the case where calling the identical situation of resource quantity, the resolution speed of each analytical algorithm is ranked up, resolution speed
The analyzing efficiency of fast analytical algorithm is high.
Further, described that final analytical algorithm is determined according to the analyzing efficiency, and the final analytical algorithm is matched
Set the monitoring station, comprising:
Choosing the high analytical algorithm of analyzing efficiency is final analytical algorithm；
The corresponding resolution rules of the final analytical algorithm are configured to the monitoring station.
Further, the resolution rules include: xpath or canonical template or position coordinates range or algorithm itself.
Second aspect, the application provide resolution rules configuration device in a kind of crawler system, comprising:
Acquiring unit, for obtaining page data from monitoring station；
Resolution unit, for presetting multiple analytical algorithms and being parsed one by one to page data；
Screening unit, the result for parsing each analytical algorithm compare, and it is correct to filter out parsing result
Analytical algorithm；
Computing unit, the analyzing efficiency for more each correct analytical algorithm of parsing result；
Configuration unit for determining final analytical algorithm according to the analyzing efficiency, and the final analytical algorithm is matched
Set the monitoring station.
Further, the screening unit includes:
Vote module, for filtering out the corresponding solution of the best parsing result of poll by voting parsing result
Analysis algorithm is correct analytical algorithm.
Further, further includes: manual unit, if for when the poll that voting results are each parsing result is identical,
Manpower intervention analyzes the feature of the website, improves analytical algorithm.
Further, the configuration unit includes:
Module is chosen, is final analytical algorithm for choosing the high analytical algorithm of analyzing efficiency；
The corresponding resolution rules of the final analytical algorithm are configured to the monitoring station by configuration module.
The technical solution that embodiments herein provides can include the following benefits:
In the application, presets multiple analytical algorithms and page data is parsed one by one；Each analytical algorithm is parsed
Result out compares, and filters out the correct analytical algorithm of parsing result, to improve the accuracy of parsing result；Compare every
The analyzing efficiency of a correct analytical algorithm of the parsing result determines final analytical algorithm according to analyzing efficiency, and will be described
Final parsing algorithm configuration is to the monitoring station, to improve analyzing efficiency.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Fig. 1 is the flow chart of resolution rules configuration method in a kind of crawler system of the application one embodiment offer.
Fig. 2 is the structure chart of resolution rules configuration device in a kind of crawler system of the application one embodiment offer.
Specific embodiment
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
Fig. 1 is the flow chart of resolution rules configuration method in a kind of crawler system of the application one embodiment offer.
As shown in Figure 1, the method for the present embodiment includes:
S11: page data is obtained from monitoring station；
S12: presetting multiple analytical algorithms and parses one by one to page data；
S13: the result that each analytical algorithm parses is compared, and filters out the correct analytical algorithm of parsing result；
S14: the analyzing efficiency of more each correct analytical algorithm of parsing result；
S15: determining final analytical algorithm according to the analyzing efficiency, and by the final parsing algorithm configuration to the prison
Survey station point.
As optional a kind of implementation of the invention, the result that each analytical algorithm is parsed is compared,
Filter out the correct analytical algorithm of parsing result, comprising:
By voting parsing result, it is correct for filtering out the corresponding analytical algorithm of the best parsing result of poll
Analytical algorithm.
It by calculating the corresponding parsing result of multiple analytical algorithms, and votes parsing result, is conducive to improve solution
The accuracy of analysis.
As optional a kind of implementation of the invention, further includes: if voting results are the poll phase of each parsing result
Together, then manpower intervention analyzes the feature of the website, improves analytical algorithm.
By manually constantly improve analytical algorithm, avoid causing the method that cannot filter out correctly because voting results are identical
Analytic method the problem of, and the accuracy of parsing result can be continuously improved.
As a kind of implementation of the invention optional, more each correct analytical algorithm of parsing result
Analyzing efficiency, comprising:
Resource quantity is called to be ranked up each analytical algorithm, the analyzing efficiency for the analytical algorithm for calling resource few is high；
In the case where calling the identical situation of resource quantity, the resolution speed of each analytical algorithm is ranked up, resolution speed
The analyzing efficiency of fast analytical algorithm is high.
It is described that final analytical algorithm is determined according to the analyzing efficiency as optional a kind of implementation of the invention, and
By the final parsing algorithm configuration to the monitoring station, comprising:
Choosing the high analytical algorithm of analyzing efficiency is final analytical algorithm；
The corresponding resolution rules of the final analytical algorithm are configured to the monitoring station.
It is final analytical algorithm and is configured to monitoring station by choosing the high analytical algorithm of analyzing efficiency, improves parsing effect
Rate avoids the problem that time-consuming caused by human configuration resolution rules, effort, inefficiency.
As optional a kind of implementation of the invention, the resolution rules include: that xpath or canonical template or position are sat
Range or algorithm itself are marked, xpath is XML Path Language, is that one kind is used to determine XML (subset of standard generalized markup language)
The language of certain portion in document.
By a variety of resolution rules flexible configurations to monitoring station, analyzing efficiency is improved.
By taking the news content to the news item page extracts as an example.Configure four kinds of analytical algorithms:
Analytical algorithm 1: by the label in page source code according to comprising text how many sort method, news content generally compares
It is longer, so being content tab comprising the most label of text.
Analytical algorithm 2: the page has been loaded in conjunction with memory browser, the vision occurred based on body in a page
It extracts position.
Analytical algorithm 3: by the label nesting situation statistic of classification in page source code, characteristic and common scene according to label
The label that analysis text most possibly occurs.
Analytical algorithm 4: news briefing content itself has certain format.Extract some special attributes as judge according to
According to such as author, issuing time, source, editor.
When acquisition website, which is added, to be come, program can call each analytical algorithm to parse content of pages, and
The result finally parsed is taken out into comparison, is voted.For example, the parsing result poll that analytical algorithm 1 exports is 3, analytical algorithm 2
The parsing result poll of output is 3, and the parsing result poll that analytical algorithm 3 exports is 3, therefore judges analytical algorithm 1, parsing
Algorithm 2, the parsing result of analytical algorithm 3 are correct, and the parsing result poll that analytical algorithm 4 exports is 1, therefore can be determined that solution
It is wrong for analysing the parsing result of the output of algorithm 4.
Then program again analytically algorithm 1, analytical algorithm 2, select an analyzing efficiency highest inside analytical algorithm 3 for
The website generates final parsing template.The news content of the later website will be parsed with the template.In this way in maximum journey
Evade the general analytical algorithm accuracy rate of each single set on degree and is difficult the drawbacks of improving and by human configuration resolution rules efficiency
The efficiency and accuracy of Command Line Parsing rule are substantially increased on the basis of low.
Analyzing efficiency refers to a kind of analytical algorithm from a data to be processed are taken to the complete output result of final process
A speed and execute one of Service Source that this time processing needs to call and comprehensive measure, it is therefore an objective to it is fast to find a parsing
Degree is fast, and a high performance-price ratio being lacked as far as possible of the service of calling parses the website.
In analytical algorithm 2, therefore combine the visual analysis of memory browser.Since it is desired that memory browser is called, so
Slow compared to other three kinds of speed, more cost source, the main function of the algorithm here is that other algorithms are verified in comparison
As a result whether correct.
It determines that algorithm generates template later, mainly sees the point of penetration of current algorithm, can be generated not according to the difference of point of penetration
The pattern rule of same type.Such as:
Analytical algorithm 1: xpath or canonical template can be generated.
Analytical algorithm 2: the position coordinates range that can be based on the page generated according to vision algorithm.
Analytical algorithm 3: an xpath rule can be generated according to the characteristic of label.
In some embodiments, situation it is more complicated cannot generate it is clear rule can call directly algorithm itself.
In the present embodiment, presets multiple analytical algorithms and page data is parsed one by one；By each analytical algorithm solution
The result of precipitation compares, and filters out the correct analytical algorithm of parsing result, to improve the accuracy of parsing result；Compare
The analyzing efficiency of each correct analytical algorithm of the parsing result determines final analytical algorithm according to analyzing efficiency, and by institute
Final parsing algorithm configuration is stated to the monitoring station, to improve analyzing efficiency.
Fig. 2 is the structure chart of resolution rules configuration device in a kind of crawler system of the application one embodiment offer.
As shown in Fig. 2, the device of the present embodiment includes:
Acquiring unit 21, for obtaining page data from monitoring station；
Resolution unit 22, for presetting multiple analytical algorithms and being parsed one by one to page data；
Screening unit 23, the result for parsing each analytical algorithm compare, and it is correct to filter out parsing result
Analytical algorithm；
Computing unit 24, the analyzing efficiency for more each correct analytical algorithm of parsing result；
Configuration unit 25, for determining final analytical algorithm according to the analyzing efficiency, and by the final analytical algorithm
It is configured to the monitoring station.
As optional a kind of implementation of the invention, screening unit 23 includes:
Vote module, for filtering out the corresponding solution of the best parsing result of poll by voting parsing result
Analysis algorithm is correct analytical algorithm.
Described device further include: manual unit 26, if for when the poll that voting results are each parsing result is identical,
Manpower intervention analyzes the feature of the website, improves analytical algorithm.
As optional a kind of implementation of the invention, configuration unit 25 includes:
Module is chosen, is final analytical algorithm for choosing the high analytical algorithm of analyzing efficiency；
The corresponding resolution rules of the final analytical algorithm are configured to the monitoring station by configuration module.
In the present embodiment, the result that each analytical algorithm parses is compared by screening unit, filters out parsing
As a result correct analytical algorithm filters out the correct analytical algorithm of parsing result, to improve the accuracy of parsing result；Pass through
The analyzing efficiency of the more each correct analytical algorithm of parsing result of computing unit filters out the high parsing of analyzing efficiency and calculates
Method, to improve analyzing efficiency.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, can integrate in a processing module in each functional unit in each embodiment of the application
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
It should be noted that the present invention is not limited to above-mentioned preferred forms, those skilled in the art are of the invention
Other various forms of products can be all obtained under enlightenment, however, make any variation in its shape or structure, it is all have with
The identical or similar technical solution of the application, is within the scope of the present invention.
Claims (10)
1. resolution rules configuration method in a kind of crawler system characterized by comprising
Page data is obtained from monitoring station；
It presets multiple analytical algorithms and page data is parsed one by one；
The result that each analytical algorithm parses is compared, the correct analytical algorithm of parsing result is filtered out；
Compare the analyzing efficiency of each correct analytical algorithm of the parsing result；
Final analytical algorithm is determined according to the analyzing efficiency, and by the final parsing algorithm configuration to the monitoring station.
2. the method according to claim 1, wherein the result that each analytical algorithm is parsed carries out pair
Than filtering out the correct analytical algorithm of parsing result, comprising:
By voting parsing result, filtering out the corresponding analytical algorithm of the best parsing result of poll is correctly parsing
Algorithm.
3. according to the method described in claim 2, it is characterized by further comprising: if voting results are the ticket of each parsing result
Number is identical, then manpower intervention analyzes the feature of the website, improves analytical algorithm.
4. the method according to claim 1, wherein more each parsing result correctly parses calculation
The analyzing efficiency of method, comprising:
Resource quantity is called to be ranked up each analytical algorithm, the analyzing efficiency for the analytical algorithm for calling resource few is high；
In the case where calling the identical situation of resource quantity, the resolution speed of each analytical algorithm is ranked up, resolution speed is fast
The analyzing efficiency of analytical algorithm is high.
5. the method according to claim 1, wherein described determine that final parsing is calculated according to the analyzing efficiency
Method, and by the final parsing algorithm configuration to the monitoring station, comprising:
Choosing the high analytical algorithm of analyzing efficiency is final analytical algorithm；
The corresponding resolution rules of the final analytical algorithm are configured to the monitoring station.
6. according to the method described in claim 5, it is characterized in that, the resolution rules include: xpath or canonical template or position
Set coordinate range or algorithm itself.
7. resolution rules configuration device in a kind of crawler system characterized by comprising
Acquiring unit, for obtaining page data from monitoring station；
Resolution unit, for presetting multiple analytical algorithms and being parsed one by one to page data；
Screening unit, the result for parsing each analytical algorithm compare, and filter out parsing result and correctly parse
Algorithm；
Computing unit, the analyzing efficiency for more each correct analytical algorithm of parsing result；
Configuration unit for determining final analytical algorithm according to the analyzing efficiency, and the final parsing algorithm configuration is arrived
The monitoring station.
8. device according to claim 7, which is characterized in that the screening unit includes:
Vote module, for filtering out the corresponding parsing of the best parsing result of poll and calculating by voting parsing result
Method is correct analytical algorithm.
9. device according to claim 8, which is characterized in that further include: manual unit, if for being every in voting results
When the poll of a parsing result is identical, manpower intervention analyzes the feature of the website, improves analytical algorithm.
10. device according to claim 7, which is characterized in that the configuration unit includes:
Module is chosen, is final analytical algorithm for choosing the high analytical algorithm of analyzing efficiency；
The corresponding resolution rules of the final analytical algorithm are configured to the monitoring station by configuration module.
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