CN108804594A - A kind of construction method and device of news content full-text search engine - Google Patents
A kind of construction method and device of news content full-text search engine Download PDFInfo
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Abstract
The present invention relates to a kind of construction methods and device of news content full-text search engine, and steps are as follows for this method：Obtain the real-time website daily record with real-time access information；Obtain the data of the news website with news temperature comment information；Classify to the real-time website daily record and the news website data；The sorted news website data are handled, indexed and stored；It obtains the news metamessage of news website data China and stores；The temperature information obtained in news website data is stored, and to the temperature Information Statistics in news website data.The present invention realizes rational balance in query performance, index space and structure aspect of performance；In view of the characteristic that statistical data changes over time, dynamic updates indexed results；Improve the robustness of system；Improve the compound query performance of statistical data and text data.
Description
Technical field
The present invention relates to a kind of construction methods and device of news content full-text search engine, more particularly to one kind is based on system
The construction method for counting the news content full-text search engine of index incremental update, belongs to technical field of data processing.
Background technology
Traditional news content full-text search engine only supports the index to free text, and data statistic analysis is usual
It is retrieved using database, when needing to obtain news content retrieval result simultaneously and when based on the statistical data of news,
Two kinds of retrievals can separately be operated, on the one hand can not ensure the locality of index data and statistical data, retrieval statistics
It can not ensure, it is both time-consuming and laborious, while relying on the degree of coupling that external data base increases system again.
Invention content
The purpose of the present invention is to provide a kind of construction methods and device of news content full-text search engine, are suitable for making
In the data management engine of data statistics and content analysis mixed type, looked into improving statistical data and the compound of text data
Ask performance.
A kind of construction method of news content full-text search engine, including：
S1, the real-time website daily record with real-time access information is obtained；
S2, the data for obtaining the news website with news temperature comment information；
S3, classify to the real-time website daily record and the news website data；
S4, the sorted news website data are handled, indexed and is stored；
S5, the news metamessage for obtaining news website data China simultaneously store；
S6, the temperature information obtained in news website data are stored, and to the temperature information in news website data
Statistics.
Wherein, to the sorted news website data be indexed including：
S41, different segmenter is selected by the category of language of news content；
S42, word segmentation processing is carried out to targeted news content according to selected segmenter, obtains participle list；
S43, using stop words dictionary, delete the stop words in the participle list, obtain filtered participle list；
S44, it is directed to filtered participle list, generates reverse indexing, is stored in distributed index database.
Wherein, the generation reverse indexing is to divide subregion on schedule, then by the reverse indexing of news website data
It can store in logical partition.
Wherein, described monthly to be divided as subregion on schedule.
Wherein, the temperature information obtained in news website data is that daily statistics is primary.
Wherein, the temperature information includes：In contribution ID, access time, page browsing amount and independent visitor's number at least
It is a kind of.
Wherein, metamessage includes：The date of distributing new dispatchs of Press release, the author that distributes new dispatchs, the emotion information of news, degree of correlation information
At least one of with classification information.
Wherein, the temperature Information Statistics in the data to news website include：
S61, according to keyword retrieval to relevant contribution；
S62, according to determining query time section；
S63, aggregate statistics are carried out to the visit capacity information in time interval.
Further, the present invention provides a kind of news content text searching method, including：
D1, search condition, given query time interval are obtained；
D2, the subregion for determining index to be retrieved；
D3, the keyword expression of input is parsed, is generated after search engine the problem of needing in corresponding subregion
It is retrieved；
D4, the hit results for getting retrieval, find out the metamessage of Press release；
D5, it finds after temperature information of the Press release at the appointed time in interval range carries out aggregate statistics and exports.
Further, the present invention provides a kind of news content full-text search device, including：
Log acquisition unit, for obtaining the real-time website daily record with real-time access information；
Data capture unit, the data for obtaining the news website with news temperature comment information；
Taxon, for classifying to the real-time website daily record and the news website data；
Indexing units, for the sorted news website data to be handled, indexed and stored；
News metamessage acquiring unit, news metamessage for obtaining news website data China simultaneously store；
News temperature information process unit, the temperature information for obtaining in news website data are stored, and to new
Hear the temperature Information Statistics in website data.
The present invention a kind of construction method, search method and the device of news content full-text search engine, advantage and effect
It is：
1, the present invention realizes rational balance in query performance, index space and structure aspect of performance, with it is conventional then
Full-text search engine is suitable compared to retrieval performance, the increment very little occupied to storage resource.
2, using statistical data in such a way that full-text search data are combined, to build to new index, while in view of system
The characteristic changed over time is counted, dynamic updates indexed results, and convenient search person disposably obtains content results and statistics is tied
Fruit.
3, in combination with the time response of Press release content, to indexing this metadata of time of distributing new dispatchs by Press release
Characteristic carries out logical partition storage, and index data is on the one hand enable to be more suitable for carrying out distributed storage, pair for being on the other hand
The management of index data is more prone to, for example, when the index data of a time interval if necessary to be indexed again, then only
It needs to reacquire this partial data from external source and is indexed update, do not influence, to the retrieval statistics of other index partitions, to carry
The high robustness of system.
4, the present invention is suitable for use in the data management engine of data statistics and content analysis mixed type, improves statistics
The compound query performance of data and text data.
Description of the drawings
Fig. 1 is the construction method flow diagram of news content full-text search engine in the embodiment of the present invention.
Fig. 2 is to be indexed method flow schematic diagram to sorted news website data in the embodiment of the present invention.
Fig. 3 is in the embodiment of the present invention to the temperature Information Statistics flow diagram in news website data.
Fig. 4 is a kind of news content text searching method flow diagram in the embodiment of the present invention.
Fig. 5 is a kind of news content full-text search apparatus structure schematic diagram in the embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of construction method of news content full-text search engine, and this method includes：S1, acquisition
Real-time website daily record with real-time access information；S2, the data for obtaining the news website with news temperature comment information；
S3, classify to the real-time website daily record and the news website data；S4, the sorted news website data are carried out
It handles, index and store；S5, the news metamessage for obtaining news website data China simultaneously store；S6, news website data are obtained
In temperature information stored, and to the temperature Information Statistics in news website data.Below to news provided by the invention
The construction method expansion detailed description of content full-text search engine.
Specifically, the web log file that band is sometimes access information is obtained by web crawlers, two kinds of reptile acquisition is main
Data source, a part carry the real-time website daily record of real-time access information, and another part is with news temperature comment letter
The data of the news website of breath.Further, according to different reptile data sources, simply classified, respectively to original
Reptile data handled and indexed.Further, for filtered participle list, reverse indexing, deposit distribution are generated
In the index database of formula；Lastest news hot spot is directed in the present invention, due to the time response of news, the visit of a usual news
Ask temperature news distribute new dispatchs on the day of be peak, then gradually decay, in order to improve the performance of retrieval, index is using on time
Between the mode of subregion carry out.
As shown in Fig. 2, to the sorted news website data be indexed including：S41, the language by news content
Type selects different segmenter；42, word segmentation processing is carried out to targeted news content according to selected segmenter, is segmented
List；S43, using stop words dictionary, delete the stop words in the participle list, obtain filtered participle list；S44,
For filtered participle list, reverse indexing is generated, is stored in distributed index database.
It is to divide subregion on schedule to generate reverse indexing, and the reverse indexing of news website data can then be stored and patrolled
It collects in subregion.Specifically, every Press release to be indexed, which should all have, explicitly distributes new dispatchs the time, while in order to limit index point
The quantity in area, the optional mode for taking monthly subregion carry out.Such as the time of distributing new dispatchs of a contribution is 2018-01-31 13:33:
21, then use 201801 subregion as the index of this contribution, the reverse indexing of the contribution can then store to 201801 this
In logical partition.The practical of index information can store in distributed key assignments (key-value) data, we select in realization
Select raft agreements, the copy of acquiescence is 3, i.e., can be deposited slightly on three different index nodes in actual storage index information,
Such as 201801 all index informations of this logical partition can be distributed on three different physical nodes.
It is that daily statistics is primary to obtain the temperature information in news website data.Temperature information includes：When contribution ID, access
Between, it is at least one in page browsing amount and independent visitor's number.Specifically, it for the temperature information of contribution, is used in of the invention
The mode counted once a day carries out, for any one contribution, daily temperature be one by contribution ID (hereinafter referred to as
Cid), access time (day), page browsing amount (referred to as pv), independent visitor's number (referred to as uv) composition four-tuple (cid,
day,pv,uv).Similarly, the temperature information four-tuple of contribution, is also stored in distributed key-value databases, together
Sample uses raft agreements.
It is described
News metamessage includes：The date of distributing new dispatchs of Press release, the author that distributes new dispatchs, the emotion information of news, degree of correlation information
At least one of with classification information.These news metamessages will not change with the variation of time, even if if changing only
It needs to preserve a value.These metamessages of Press release are consistent with reverse indexing, according to contribution distribute new dispatchs the time into
Row logical partition, after subregion in storage to the distributed key-value databases of counterlogic subregion.Keyword index is provided
While, can use contribution metamessage be filtered, such as can specify contribution emotional value fixed interval contribution into
Row retrieval, various metamessage search conditions support the query composition of the basic logics such as and-or inverter.
In order to improve the performance of specific retrieval, the member in the temperature information present invention for same day contribution of distributing new dispatchs as Press release
Information and other metamessages are stored together.For example, we only need to count the temperature data on the day of Press release is distributed new dispatchs, directly
It connects and is counted according to the temperature information in metadata information, this can greatly improve the performance of this some types retrieval.
In embodiments of the present invention, as shown in figure 3, including to the temperature Information Statistics in news website data：S61, root
According to keyword retrieval to relevant contribution；S62, according to determining query time section；S63, to the visit capacity in time interval
Information carries out aggregate statistics.Specifically, first according to keyword retrieval to relevant contribution, then according to determining query time area
Between, aggregate statistics are carried out to the visit capacity information in time interval.For the aggregate statistics of contribution temperature information, the present invention is implemented
Example uses on the basis of distributed key-value databases, and simple SQL query function is added, can tire out to pv
Add, and the hyperloglog algorithms that polymerization use is carried out to uv are realized.Another aspect, the visit capacity information of contribution follow
The date of distributing new dispatchs of contribution carries out subregion, can greatly improve the performance of the two processes of retrieval+count, and usually only needs primary point
Area's positioning operation can navigate to position of the Press release self-information in distributed key-value databases.
For further embody news content full-text search engine provided by the invention construction method superiority, the present invention
A kind of news content text searching method applied in above-mentioned search engine is provided, as shown in figure 4, this method includes：D1, acquisition
Search condition, given query time interval；D2, the subregion for determining index to be retrieved；D3, to the keyword expression of input into
Row parsing, is retrieved after generating the problem of search engine needs in corresponding subregion；D4, the hit results for getting retrieval,
Find out the metamessage of Press release；D5, it finds temperature information of the Press release at the appointed time in interval range and carries out polymerization system
It is exported after meter.Below news content text searching method provided by the invention is unfolded to be described in detail.
In the present invention, user search condition is obtained, can be the search key for obtaining user.User can pass through pass
Keyword carries out Press release content and is retrieved.Dividing for the index retrieved is determined after checking the legitimacy of the time range of retrieval
Area, including one or more index partition to be retrieved according to keyword retrieval to relevant contribution, then according to determination
Query time section.Reptile can carry out analysis extraction after collecting news content data to content, and Press release is distributed new dispatchs
Time is also to extract in this way, if the time extracted is earlier than regular time or advanced current time
(being then considered as illegal) can refuse these contributions, this hair when then calling the index interface of this news content full-text search engine
The bright analysis and retrieval for focusing mainly on the internet hot spots news in recent years, premature news content would not count.This
Invention retrieval is concerned with the hot statistics of particular news contribution in specific time, in order to improve safeguarding for performance and system
Property, retrieve information is carried out by way of subregion, and subregion is carried out by the month information of the time of distributing new dispatchs of Press release, such as one
The time of distributing new dispatchs of piece contribution is 2018-05-04 12:30:21, then the index information of the contribution can distribute storage to 201805 this
In a logical partition.
The keyword expression of input is parsed, is carried out in corresponding subregion after generating the problem of search engine needs
Retrieval.Specifically, the core inner of searching system supports the following Query combined, and combination Query is to some row subquery items
The synthesis of part (Child Query).Conjunction:Indicate that retrieval result must be matched to all subqueries；
Disjunction:Indicate that retrieval result must be matched to one or more subquery；Boolean:(it must expire including Must
Foot), Must Not (must be unsatisfactory for).Such as：Term input by user is " (Nanjing endowment insurance &)！(house property | medical treatment) " packet
Logical AND, logic NOT and logic have been included or, being directed to such retrieval grammer, a series of BNF expression formulas has been write out, passes through BISON
Tool generates the Parser customized, and Parser run-downs term input by user generates three above and checks inquiry substantially
Combination Query, be submitted to index and retrieved.
The hit results for getting retrieval find out the metamessage of Press release；Specifically, for example, retrieval hit results,
It is a series of position of Press release in the index, which is indicated by one 64 for ID, is obtained after ID along with subregion is believed
It ceases, then finds the news of corresponding ID in the key-value databases of respective partition, take out the metamessage of news, including news
Contribution content, temperature information etc..D5, it finds temperature information of the Press release at the appointed time in interval range and carries out aggregate statistics
After export.
While exporting Press release original contents, the system of the polymerization to the Press release temperature of specified time interval is provided
Count result；For the aggregate statistics of contribution temperature information, present invention employs on the basis of distributed key-value databases
On, simple SQL query function is added, can add up to pv, and the hyperloglog algorithms of polymerization use are carried out to uv
It realizes.Such as given keyword " room rate " wonders the Press release comprising this word in nearest one month hot statistics, packet
The information included has, and the new contribution of how many daily item, every news how many pv and uv, daily pv and uv are in the whole nation
How is the distribution in each province area, and device provides detailed statistics, while for the data in one month, can daily go out knot
Fruit can also be added up out by Zhou Jinhang as a result, providing the Long-term change trend information of temperature.
Traditional news content full-text search engine only supports the index to free text, and for being additional to text
The additional information data generally use database for statistical analysis changed over time come carry out retrieval and aggregate statistics, work as needs
When obtaining news content retrieval result and statistical data based on news simultaneously, separate operations can only be retrieved by two kinds, on the one hand
It can not ensure that the locality (locality) of index data and statistical data, retrieval statistics performance can not ensure, while rely on outer
Portion's database increases the degree of coupling of system again.
In another embodiment of the present invention, the present invention provides a kind of news content full-text search device, such as Fig. 5 institutes
Show, which includes：Log acquisition unit, for obtaining the real-time website daily record with real-time access information；Data acquisition list
Member, the data for obtaining the news website with news temperature comment information；Taxon, for the real-time website day
Will and news website data classification；Indexing units, for being handled the sorted news website data, being indexed
And it stores；News metamessage acquiring unit, news metamessage for obtaining news website data China simultaneously store；News temperature
Information process unit, the temperature information for obtaining in news website data are stored, and to the heat in news website data
Spend Information Statistics.In the present invention, working process and principle and the above-mentioned news content full text of news content full-text search device are examined
Suo Fangfa is similar, is referred to above method execution, details are not described herein.
Construction method, search method and the device of news content full-text search engine provided in an embodiment of the present invention, it is excellent
Point and effect are：1, the present invention realizes rational balance in query performance, index space and structure aspect of performance, with routine
Full-text search engine then is suitable compared to retrieval performance, the increment very little occupied to storage resource.2, using by statistical data with
The mode that full-text search data are combined builds new index, while in view of the characteristic that statistical data changes over time, dynamic
Indexed results are updated, convenient search person disposably obtains content results and statistical result.3, in combination with Press release content
On the one hand time response makes to indexing time this metadata characteristics progress logical partition storage of distributing new dispatchs by Press release
Index data can be more suitable for carrying out distributed storage, and be on the other hand is more prone to the management of index data, for example, when one
The index data of a time interval if necessary to being indexed again, then only need from external source reacquire this partial data into
Line index updates, and does not influence the retrieval statistics to other index partitions, improves the robustness of system.4, the present invention is suitable for making
In the data management engine of data statistics and content analysis mixed type, the compound query of statistical data and text data is improved
Performance.
It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The application is with reference to method, the flow of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also include other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.The fingers such as term "upper", "lower"
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplifies
Description, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and behaviour
Make, therefore is not considered as limiting the invention.Unless otherwise clearly defined and limited, term " installation ", " connected ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
In the specification of the present invention, numerous specific details are set forth.Although it is understood that the embodiment of the present invention can
To put into practice without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.Similarly, it should be understood that disclose in order to simplify the present invention and helps to understand respectively
One or more of a inventive aspect, in the above description of the exemplary embodiment of the present invention, each spy of the invention
Sign is grouped together into sometimes in single embodiment, figure or descriptions thereof.However, should not be by the method solution of the disclosure
It releases and is intended in reflection is following：The feature that i.e. the claimed invention requirement ratio is expressly recited in each claim is more
More features.More precisely, as the following claims reflect, inventive aspect is to be less than single reality disclosed above
Apply all features of example.Therefore, it then follows thus claims of specific implementation mode are expressly incorporated in the specific implementation mode,
Wherein each claim itself is as a separate embodiment of the present invention.It should be noted that in the absence of conflict, this
The feature in embodiment and embodiment in application can be combined with each other.The invention is not limited in any single aspect,
It is not limited to any single embodiment, is also not limited to the arbitrary combination and/or displacement of these aspects and/or embodiment.And
And can be used alone of the invention each aspect and/or embodiment or with other one or more aspects and/or its implement
Example is used in combination.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (10)
1. a kind of construction method of news content full-text search engine, it is characterised in that：This method comprises the following steps：
S1, the real-time website daily record with real-time access information is obtained；
S2, the data for obtaining the news website with news temperature comment information；
S3, classify to the real-time website daily record and the news website data；
S4, the sorted news website data are handled, indexed and is stored；
S5, the news metamessage for obtaining news website data China simultaneously store；
S6, the temperature information obtained in news website data are stored, and to the temperature Information Statistics in news website data.
2. according to the method described in claim 1, it is characterized in that：Packet is indexed to the sorted news website data
It includes：
S41, different segmenter is selected by the category of language of news content；
S42, word segmentation processing is carried out to targeted news content according to selected segmenter, obtains participle list；
S43, using stop words dictionary, delete the stop words in the participle list, obtain filtered participle list；
S44, it is directed to filtered participle list, generates reverse indexing, is stored in distributed index database.
3. according to the method described in claim 2, it is characterized in that：The generation reverse indexing is to divide to divide on schedule
Area can then store the reverse indexing of news website data in logical partition.
4. according to the method described in claim 3, it is characterized in that：According to the method described in claim 3, it is characterized in that：
It is described monthly to be divided as subregion on schedule.
5. according to the method described in claim 1, it is characterized in that：The temperature information obtained in news website data is every
Its statistics is primary.
6. according to the method described in claim 1, it is characterized in that：The temperature information includes：Contribution ID, access time, page
It is at least one in face pageview and independent visitor's number.
7. according to the method described in claim 1, it is characterized in that：The news metamessage includes：Press release is distributed new dispatchs day
At least one of phase, the author that distributes new dispatchs, the emotion information of news, degree of correlation information and classification information.
8. according to the method described in claim 1, it is characterized in that：Temperature Information Statistics packet in the data to news website
It includes：
S61, according to keyword retrieval to relevant contribution；
S62, according to determining query time section；
S63, aggregate statistics are carried out to the visit capacity information in time interval.
9. a kind of news content text searching method, it is characterised in that：This method includes：
D1, search condition, given query time interval are obtained；
D2, the subregion for determining index to be retrieved；
D3, the keyword expression of input is parsed, is carried out in corresponding subregion after generating the problem of search engine needs
Retrieval；
D4, the hit results for getting retrieval, find out the metamessage of Press release；
D5, it finds after temperature information of the Press release at the appointed time in interval range carries out aggregate statistics and exports.
10. a kind of news content full-text search device, it is characterised in that：Including：
Log acquisition unit, for obtaining the real-time website daily record with real-time access information；
Data capture unit, the data for obtaining the news website with news temperature comment information；
Taxon, for classifying to the real-time website daily record and the news website data；
Indexing units, for the sorted news website data to be handled, indexed and stored；
News metamessage acquiring unit, news metamessage for obtaining news website data China simultaneously store；
News temperature information process unit, the temperature information for obtaining in news website data are stored, and to News Network
Temperature Information Statistics in data of standing.
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| CN110138583A (en) * | 2019-03-03 | 2019-08-16 | 北京立思辰安科技术有限公司 | A kind of methods of exhibiting of warning intelligent analysis |
| CN110516157A (en) * | 2019-08-30 | 2019-11-29 | 盈盛智创科技(广州)有限公司 | A kind of document retrieval method, equipment and storage medium |
| CN112115154A (en) * | 2020-09-27 | 2020-12-22 | 北京有竹居网络技术有限公司 | Data processing and data query method, device, equipment and computer readable medium |
| CN112817921A (en) * | 2021-04-20 | 2021-05-18 | 泰德网聚(北京)科技股份有限公司 | Cloud resource acquisition management system based on data center |
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