CN103020300B - Method and device for information retrieval - Google Patents
Method and device for information retrieval Download PDFInfo
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- CN103020300B CN103020300B CN201210592537.2A CN201210592537A CN103020300B CN 103020300 B CN103020300 B CN 103020300B CN 201210592537 A CN201210592537 A CN 201210592537A CN 103020300 B CN103020300 B CN 103020300B
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Abstract
The invention discloses a method and device for information retrieval. The method comprises the following steps: an index server acquires information data from information resources, and determines index entries included in the information data; the index server generates and stores the mapping relationship between the index entry and the information data including the index entry according to the obtained information data and the determined index entry included in the information data; when a retrieval request forwarded by an information retrieval server is received, the index server determines the index entry corresponding to the retrieval request; and the index server determines the information data corresponding to the retrieval request according to the index entry corresponding to the retrieval request and the mapping relationship between the stored index entry and the information data including the index entry, and returns the information data to the information retrieval server, and then the information retrieval server feedbacks the information data to the retrieval request initiator. In the method and the device, the information retrieval efficiency and the expandability in the network management system are improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of information retrieval method and equipment.
Background technology
Information retrieval (Information Retrieval) refers to that information is organized in a certain way, and according to
The demand at family finds out the process and technology of the information of correlation.The information retrieval full name of broad sense be informationm storage and retrieval, refer to by
Information is organized in a certain way and is stored, and having according to required for the demand of user finds out user from information aggregate
The process of pass information.
The primary evaluation index of information retrieval is included in terms of following two：
1st, retrieval quality：Comprising precision ratio and recall ratio.I.e. for user's inquiry request, standard should be able to be retrieved
Really, meet the result of search request and retrieve most results as far as possible.
2nd, recall precision：Result that user inquiry request and feedback searching arrive is processed as quickly as possible should.
Referring to Fig. 1, in existing network management system information retrieval process, inquiry bar of the information retrieval server according to user input
Part, finds qualified information aggregate in information resources set, and the information aggregate for finding is fed back to user.
As information resources involved during information retrieval have many types (such as relevant database, local file, net
Network equipment MIB (Management Information Base, management information bank) etc.), and primary information retrieval may be from more
Searching data in individual information resources, thus the information retrieval service implementation for using at present can with as shown in Fig. 2 including：
The retrieval content that information retrieval server parsing inquiry request person provides, generates corresponding boolean queries expression formula；
Inquiry request is assigned to each information resources by access mode of the information retrieval server according to different information resources, to letter
Information data in breath resource carries out query filter or entrusted information resource is inquired about；When each information resources completes inquiry
Afterwards, collect the information aggregate for retrieving, inquiry request person is fed back to as retrieval result.
During the present invention is realized, it is found by the applicant that at least there is problems with prior art：
1st, information retrieval process is coupled with business information height：Due to the source of business datum in network management system it is more complicated,
It is related to the Heterogeneous Information carriers such as relevant database, local file, network equipment MIB.Even identical information
Carrier, under different business application, its format information memory is also likely to be different, is such as designed as the data of different structure
Storehouse table and field, different file data form, MIB tables and field etc..Thus the retrieval of certain business datum is accomplished by
Enter line retrieval, information retrieval process and business information height coupling according to corresponding format information memory on the information carrier that it is related to
Close, be unfavorable for extending and safeguard；
2nd, respond under extensive quantity of information slow：The information resources such as relevant database and network equipment MIB are extensive
In the case of quantity of information, often become the performance bottleneck of retrieving, cause retrieval response message slow；
3rd, Multi-service information recall precision is low：Due to the information carrier and message structure of different business data it is inconsistent, it is past
It is past to be required for realizing the information retrieval process of oneself.Thus Multi-service information retrieval needs the information retrieval using each business
Retrieving respective data and finally collect, this kind of implementation may inefficiency under the conditions of non-concurrent for journey.
The content of the invention
It is an object of the invention to provide a kind of information retrieval method and equipment, to improve information retrieval in network management system
Efficiency and extensibility, for this purpose, the present invention is adopted the following technical scheme that：
A kind of information retrieval method, is applied to include the webmaster of information resources, information retrieval server and index server
In system, the method includes：
Index server obtains information data, and the index entry included in determining described information data from information resources；
The index server according to the information data for being obtained and determined by the rope that includes in described information data
Draw item, generate and store the mapping relations of index entry and the information data comprising the index entry；
When the index server receives the retrieval request of information retrieval server forwarding, the index server is true
The corresponding index entry of the fixed retrieval request；
The index server according to the corresponding index entry of the retrieval request, and itself storage index entry with include
The mapping relations of the information data of the index entry, determine the corresponding information data of the retrieval request, and the information data are returned
Back to described information retrieval server, the information data is fed back to into retrieval request initiator by described information retrieval server；
Wherein, described information resource includes at least two resources in data base, the network equipment and file system, accordingly
Ground, the index server are concrete with information resources to the form of the information data of the access mode and acquisition of information resources
Form correspondence.
Wherein, the index server obtains information data from information resources, specially：
The index server finds automatically the information data in information resources according to the configuration of information resources；Or,
The index server receives the information data of described information resource active push.
Wherein, the index entry that the index server is included in determining information data, specially：
The information data of acquisition is converted to the index server informative abstract of predefined format, and determines the information
The index entry that summary is included.
Wherein, after the index entry that the index server is included in determining information data, also include：
The index server according to the information data for being obtained and determined by the rope that includes in described information data
Draw item, the mapping relations of the index entry that storage information data are included with the information data；
Described information data are returned to information retrieval server by the index server, specially：
The mapping of the index entry that the index server is included according to the information data for itself storing and the information data is closed
System, determines the degree of association of the corresponding information data of the retrieval request and the retrieval request, and by the retrieval request corresponding letter
Breath order of the data according to degree of association from high to low returns to described information retrieval server.
Wherein, be also stored with the index server positioning mode of information data information position in information resources,
The method also includes：
When the index server receives the access request to described information data, the index server is according to this
The positioning mode of information data information position in information resources that request is accessed, positioning described information data are provided in described information
Information position in source, and return to access request initiator.
A kind of index server, is applied in the network management system for include information resources and information retrieval server, the index
Server includes：
Data obtaining module, for information data is obtained from information resources；
Data analysis module, the index entry included in determining described information data；
Index module, the information data and the data analysis module for being obtained according to the data obtaining module are true
The index entry included in fixed information data, the mapping for generating and storing index entry with the information data comprising the index entry are closed
System；
Determining module, for the information retrieval requests of information retrieval server forwarding are received when the index server
When, determine the corresponding index entry of the retrieval request；
Processing module, for according to the corresponding index entry of the retrieval request, and the index of index module storage
Item and the mapping relations of the information data comprising the index entry, determine the corresponding information data of the retrieval request, and this are believed
Breath data return to described information retrieval server, and the information data is fed back to retrieval request by described information retrieval server
Initiator.
Wherein, the data obtaining module is specifically for finding in information resources automatically according to the configuration of information resources
Information data；Or, receiving the information data of described information resource active push.
Wherein, the data analysis module is specifically for the information data that the data obtaining module is obtained is converted to
The informative abstract of predefined format, and determine the index entry that the informative abstract is included.
Wherein, the index module is additionally operable to, and obtains data message and the data point that module is obtained according to described
The index entry included in the described information data that analysis module determines, the index entry that storage information data are included with the information data
Mapping relations；
The processing module is specifically for including according to information data and the information data of index module storage
The mapping relations of index entry, determine the degree of association of the corresponding information data of the retrieval request and the retrieval request, and this are examined
Rope asks order of the corresponding information data according to degree of association from high to low to return to described information retrieval server.
Wherein, the index module is additionally operable to, the positioning mode of storage information data information position in information resources；
The processing module is additionally operable to, when the index server receives the access request to described information data,
The positioning mode of the information data information position in information resources accessed according to the request, positioning described information data are described
Information position in information resources, and return to access request initiator；
Wherein, described information resource includes at least two resources in data base, the network equipment and file system, accordingly
Ground, the index server are concrete with information resources to the form of the information data of the access mode and acquisition of information resources
Form correspondence.
In the above embodiment of the present invention, information data is obtained from information resources by index server, and determines the letter
The index entry that includes in breath data, so as to according to the information data for being obtained and determined by the rope that includes in the information data
Draw item, generate and store the mapping relations of index entry and the information data comprising the index entry；When index server receives letter
During the retrieval request of breath retrieval server forwarding, the index server determines the corresponding index entry of the retrieval request, and according to this
The corresponding index entry of retrieval request, and the index entry of index server itself storage and the information data comprising the index entry
Mapping relations, determine the corresponding information data of the retrieval request, and then the information data are returned to information retrieval server, by
The information data is returned to retrieval request initiator by the information retrieval server, improves the effect of information retrieval in network management system
Rate and extensibility.
Description of the drawings
Fig. 1 is information retrieval schematic flow sheet in a kind of existing network management system；
Fig. 2 is information retrieval schematic flow sheet in a kind of existing network management system；
Fig. 3 is a kind of information retrieval schematic flow sheet provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of index server provided in an embodiment of the present invention.
Specific embodiment
For above-mentioned problems of the prior art, a kind of technical side of information retrieval is embodiments provided
Case, can apply to include the network management system of information retrieval server and index server.In the technical scheme, by index
Server obtains information data, and the index entry included in determining the information data from information resources, so as to according to being obtained
Information data and determined by the index entry that includes in the information data, generate and store index entry with comprising the index entry
Information data mapping relations；When index server receives the retrieval request of information retrieval server forwarding, the index
Server determines the corresponding index entry of the retrieval request, and according to the corresponding index entry of the retrieval request, and index server
The index entry of itself storage and the mapping relations of the information data comprising the index entry, determine the corresponding Information Number of the retrieval request
According to, and then the information data is returned to into information retrieval server, the information data is returned to by the information retrieval server
Retrieval request initiator.
Wherein, above- mentioned information resource can include one or more in data base, the network equipment and file system；Phase
The concrete shape of Ying Di, form of the index server to the information data of the access mode and acquisition of information resources and information resources
Formula correspondence.
Below in conjunction with the accompanying drawing in embodiments of the invention, the technical scheme in embodiments of the invention is carried out clearly
Chu, complete description, it is clear that the embodiments described below are only a part of embodiment of the invention, rather than the reality of whole
Apply example.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not paid
Every other embodiment, belong to embodiments of the invention protection scope.
As shown in figure 3, for a kind of schematic flow sheet of information retrieval method provided in an embodiment of the present invention, can include with
Lower step：
Step 301, index server obtain information data, and the rope included in determining the information data from information resources
Draw item.
Specifically, for the information resources set of isomery, in embodiments of the present invention, index is introduced in network management system
Server, organizes to the information data in the information resources set of isomery, and responds retrieval request.
In order to the information data in the information resources set to isomery is organized, in embodiments of the present invention, index clothes
Business device can find automatically the information data in information resources according to the configuration of information resources, or realize that information is provided by business function
Source by the way of active push is registered to information data in index server.Wherein, index server finds information automatically
Information data in resource periodically can be carried out；Information data is registered to rope by the way of active push by information resources
Drawing server periodically can be carried out, it is also possible to carry out when there is information data renewal in information resources.
After index server obtains information data from information resources, can be by predefined conversion regime by the information
Informative abstract of the data conversion into predefined format.Generally data message can be converted to " key：The text snippet lattice of value "
Formula (i.e. " attribute：Property value ", such as " [attribute A]：Property value A；[attribute B]：Property value B "), and text message can then be extracted
The key component inquired about by needs.
Information data is completed to after the conversion of informative abstract, the informative abstract for obtaining can be passed through morpheme by index server
The modes such as cutting, stop words are removed, stem extraction carry out data analysiss, obtain the index entry corresponding to informative abstract.
Step 302, index server according to the information data for being obtained and determined by the rope that includes in information data
Draw item, generate and store the mapping relations of index entry and the information data comprising the index entry.
Specifically, after the index entry that index server is included in determining obtained information data, can be according to being obtained
Information data, and the index entry included in the information generates the mapping of index entry and the information data comprising the index entry
Relation.
For example, the information data that index server is obtained includes：Information data 1, information data 2 and information data 3；Information
Index entry a, index entry b, index entry c are included in data 1, index entry a, index entry c, index entry d, letter in information data 2, is included
Index entry b, index entry d are included in breath data 3；The index entry that then index server is generated and the mapping relations comprising the index entry
Can be as shown in table 1：
Table 1
| Index entry | Information data |
| Index entry a | Information data 1, information data 2 |
| Index entry b | Information data 1, information data 3 |
| Index entry c | Information data 1, information data 2 |
| Index entry d | Information data 2, information data 3 |
Preferably, can be with recording indexes in the index entry that index server is generated and the mapping relations comprising the index entry
The number of times that item occurs in corresponding information data, as shown in table 2：
Table 2
| Index entry | Information data |
| Index entry a | Information data 1 [2], information data 2 [1] |
| Index entry b | Information data 1 [1], information data 3 [3] |
Wherein, index entry a occurs 2 times in information data 1, occurs 1 time in information data 2；Index entry b is in Information Number
Occur 1 time according in 1, occur 3 times in information data 3.
Step 303, when index server receive information retrieval server forwarding retrieval request when, index server is true
The corresponding index entry of the fixed retrieval request.
Specifically, in embodiments of the present invention, when information retrieval server receives Client-initiated retrieval request.Should
The retrieval request can be transmitted to index server by information retrieval server, and being parsed and performed by index server the retrieval please
Ask.
After index server receives the retrieval request of information retrieval server forwarding, the retrieval request is parsed
(such as morpheme cutting, stop words removal, stem extraction etc.), obtains the corresponding index entry of the retrieval request.
Step 304, index server are according to the corresponding index entry of the retrieval request, and the index entry of itself storage and bag
The mapping relations of the information data containing the index entry, determine the corresponding information data of the retrieval request, and the information data are returned
Back to information retrieval server, the information data is fed back to into retrieval request initiator by information retrieval server.
Specifically, after index server determines the corresponding index entry of retrieval request for receiving, the index service
Device can according to the corresponding index entry of the retrieval request, and index server itself storage index entry with include the index entry
Information data mapping relations, determine the corresponding information data of the retrieval request.
By taking mapping relations of the index entry shown in table 1 with the information data comprising the index entry as an example, it is assumed that index service
Device determine the corresponding index entry of retrieval request for index a and index entry c, then index server according to the index entry and itself
The information data that the mapping relations of storage determine is information data 1 and information data 2.
After index server determines the corresponding information data of retrieval request, the information data can be returned to information retrieval
The information data is fed back to retrieval request initiator by information retrieval server by server.
Further, in embodiments of the present invention, after index server determines the corresponding information data of retrieval request, may be used also
To determine the degree of association of the information data and retrieval request, and by the retrieval request corresponding information data according to degree of association from height
Information retrieval server is returned to low order.
Correspondingly, index server obtains information data from information resources, and include in determining the information data
After index entry, the mapping relations of the index entry that can be included with storage information data and the information data, as shown in table 3：
Table 3
| Information data | Index entry |
| Information data 1 | Index entry a, index entry b, index entry c |
| Information data 2 | Index entry a, index entry c, index entry d |
| Information data 3 | Index entry b, index entry d |
Preferably, in the mapping relations of the index entry that the information data that index server is generated is included with the information data also
The number of times that can occur in corresponding information data with recording indexes item.
After index server determines retrieval request corresponding information data, the index server can be according to the retrieval
Ask corresponding index entry, index server storage index entry with comprising the index entry information data mapping relations, with
And information data determines the phase of retrieval request and corresponding information data with the mapping relations of the index entry that the information data is included
Guan Du, and information data is ranked up and is fed back according to the degree of association.Wherein, index server determine retrieval request with it is corresponding
The specific implementation of degree of association of information data will not be described here.
Further, in embodiments of the present invention, can be with storage information data in information resources in index server
The positioning mode of information position.User when carrying out business function using retrieval result and operating, when needing to navigate to information resources
In original information data when, the access request to information data can be initiated.When index server is received to information data
Access request when, the positioning side of information data information position in information resources that index server is accessed according to the request
Formula, positions information position of the information data in information resources, and returns to access request initiator.
By above description, in technical scheme provided in an embodiment of the present invention, by index server by isomery
Information data in information resources has carried out unified index, when needed can be same by the information data in different information resources
When retrieve, improve the recall precision of information data in different information resources；In information retrieval process, it is not necessary to solicited message
The raw information resource that data are located, can enter rapidly line retrieval response；By index entry in index server and comprising the rope
Draw the storage of the mapping relations of the information data of item, it is to avoid in the case of the extensive quantity of information, relevant database and network
The performance bottleneck of the information retrieval that the information resources such as equipment MIB are caused, improves the extensibility of information retrieval in network management system.
Based on the inventive concept of said method embodiment system, the embodiment of the present invention additionally provides a kind of index server,
Can apply to said method embodiment.
As shown in figure 4, for a kind of structural representation of index server provided in an embodiment of the present invention, can include：
Data obtaining module 41, for information data is obtained from information resources；
Data analysis module 42, the index entry included in determining described information data；
Index module 43, for the information data that obtained according to the data obtaining module 41 and the data analysiss mould
The index entry that includes in the information data that block 42 determines, generates and stores reflecting for index entry and the information data for including the index entry
Penetrate relation；
Determining module 44, for the information retrieval requests of information retrieval server forwarding are received when the index server
When, determine the corresponding index entry of the retrieval request；
Processing module 45, for according to the corresponding index entry of the retrieval request, and the storage of the index module 43
Index entry and the mapping relations of the information data comprising the index entry, determine the corresponding information data of the retrieval request, and will
The information data returns to described information retrieval server, and the information data is fed back to retrieval by described information retrieval server
Request initiator.
Wherein, according to the configuration of information resources, the data obtaining module 42 can be specifically for finding that information is provided automatically
Information data in source；Or, receiving the information data of described information resource active push.
Wherein, the data analysis module 42 can be specifically for the Information Number for obtaining the data obtaining module 41
According to the informative abstract for being converted to predefined format, and determine index entry that the informative abstract is included.
Wherein, the index module 43 can be also used for, and obtain the data message and described that module is obtained according to described
The index entry included in the described information data that data analysis module determines, the rope that storage information data are included with the information data
Draw the mapping relations of item；
Correspondingly, the processing module 45 can be specifically for, according to the information data of the storage of the index module 43 with
The mapping relations of the index entry that the information data is included, determine the corresponding information data of the retrieval request with the retrieval request
Degree of association, and the order by the retrieval request corresponding information data according to degree of association from high to low returns to described information retrieval
Server.
Wherein, the index module 43 can be also used for, the positioning of storage information data information position in information resources
Mode；
Correspondingly, the processing module 45 can be also used for, when the index server is received to described information data
Access request when, the positioning mode of the information data information position in information resources accessed according to the request, positioning are described
Information position of the information data in described information resource, and return to access request initiator.
Wherein, described information resource includes one or more in data base, the network equipment and file system.
It will be appreciated by those skilled in the art that module in device in embodiment can be carried out point according to embodiment description
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
The module for stating embodiment can merge into a module, it is also possible to be further split into multiple submodule.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but the former is more in many cases
Good embodiment.Based on such understanding, what technical scheme was substantially contributed to prior art in other words
Part can be embodied in the form of software product, and the computer software product is stored in a storage medium, if including
Dry instruction is used so that a station terminal equipment (can be mobile phone, personal computer, server, or network equipment etc.) performs sheet
Invent the method described in each embodiment.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
Depending on protection scope of the present invention.
Claims (10)
1. a kind of information retrieval method, it is characterised in that be applied to include information resources, information retrieval server and index service
In the network management system of device, the method includes：
Index server obtains information data, and the index entry included in determining described information data from information resources；
The index server according to the information data for being obtained and determined by the index entry that includes in described information data,
Generate and store the mapping relations of index entry and the information data comprising the index entry；
When the index server receives the retrieval request of information retrieval server forwarding, the index server determines should
The corresponding index entry of retrieval request；
The index server according to the corresponding index entry of the retrieval request, and itself storage index entry with include the rope
Draw the mapping relations of the information data of item, determine the corresponding information data of the retrieval request, and the information data is returned to
The information data is fed back to retrieval request initiator by described information retrieval server by described information retrieval server；
Wherein, described information resource includes at least two resources in data base, the network equipment and file system, correspondingly, institute
State the concrete form of form of the index server to the information data of the access mode and acquisition of information resources and information resources
Correspondence.
2. the method for claim 1, it is characterised in that the index server obtains Information Number from information resources
According to specially：
The index server finds automatically the information data in information resources according to the configuration of information resources；Or,
The index server receives the information data of described information resource active push.
3. the method for claim 1, it is characterised in that the index that the index server is included in determining information data
, specially：
The information data of acquisition is converted to the index server informative abstract of predefined format, and determines the informative abstract
Comprising index entry.
4. the method for claim 1, it is characterised in that the index that the index server is included in determining information data
After, also include：
Described information data are returned to information retrieval server by the index server, specially：
The mapping relations of the index entry that the index server is included according to the information data for itself storing and the information data, really
The degree of association of the corresponding information data of the fixed retrieval request and the retrieval request, and by the retrieval request corresponding information data
Described information retrieval server is returned to according to degree of association order from high to low.
5. the method for claim 1, it is characterised in that the information data that is also stored with the index server is to information
The positioning mode of information position in resource, the method also include：
When the index server receives the access request to described information data, the index server is according to the request
The positioning mode of the information data of access information position in information resources, positioning described information data are in described information resource
Information position, and return to access request initiator.
6. a kind of index server, it is characterised in that be applied to include the network management system of information resources and information retrieval server
In, the index server includes：
Data obtaining module, for information data is obtained from information resources；
Data analysis module, the index entry included in determining described information data；
Index module, determines for the information data that obtained according to the data obtaining module and the data analysis module
The index entry included in information data, generates and stores the mapping relations of index entry and the information data comprising the index entry；
Determining module, for receiving when the index server during information retrieval requests of information retrieval server forwarding, really
The corresponding index entry of the fixed retrieval request；
Processing module, for according to the corresponding index entry of the retrieval request, and the index entry of index module storage with
The mapping relations of the information data comprising the index entry, determine the corresponding information data of the retrieval request, and by the Information Number
According to described information retrieval server is returned to, the information data is fed back to into retrieval request initiation by described information retrieval server
Side；
Wherein, described information resource includes at least two resources in data base, the network equipment and file system, correspondingly, institute
State the concrete form of form of the index server to the information data of the access mode and acquisition of information resources and information resources
Correspondence.
7. index server as claimed in claim 6, it is characterised in that
The data obtaining module specifically for finding automatically the information data in information resources according to the configuration of information resources；
Or, receiving the information data of described information resource active push.
8. index server as claimed in claim 6, it is characterised in that
The data analysis module is specifically for being converted to predefined format by the information data that the data obtaining module is obtained
Informative abstract, and determine index entry that the informative abstract is included.
9. index server as claimed in claim 6, it is characterised in that
The processing module is specifically for according to the index that the information data of index module storage is included with the information data
The mapping relations of item, determine the degree of association of the corresponding information data of the retrieval request and the retrieval request, and please by the retrieval
Corresponding information data order according to degree of association from high to low is asked to return to described information retrieval server.
10. index server as claimed in claim 6, it is characterised in that
The index module is additionally operable to, the positioning mode of storage information data information position in information resources；
The processing module is additionally operable to, when the index server receives the access request to described information data, according to
The positioning mode of information data information position in information resources that the request is accessed, positioning described information data are in described information
Information position in resource, and return to access request initiator.
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| CN201210592537.2A CN103020300B (en) | 2012-12-28 | 2012-12-28 | Method and device for information retrieval |
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| KR101496179B1 (en) * | 2013-05-24 | 2015-02-26 | 삼성에스디에스 주식회사 | System and method for searching information based on data absence tagging |
| CN103714144B (en) * | 2013-12-25 | 2017-05-10 | 新华三技术有限公司 | Device and method for information retrieval |
| JP6248985B2 (en) * | 2015-06-11 | 2017-12-20 | 横河電機株式会社 | Information search system and information search method |
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| CN101763392A (en) * | 2008-12-23 | 2010-06-30 | 北京大学深圳研究生院 | Retrieval architecture and retrieval method |
| CN102053984A (en) * | 2009-11-10 | 2011-05-11 | 杜卓 | Systems and methods for information retrieval, information query and information issue |
| CN102760137A (en) * | 2011-04-27 | 2012-10-31 | 上海特易信息科技有限公司 | Distributed full-text search method and distributed full-text search system |
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| CN101051309A (en) * | 2006-04-06 | 2007-10-10 | 中国科学院计算技术研究所 | Researching system and method used in digital labrary |
| CN101763392A (en) * | 2008-12-23 | 2010-06-30 | 北京大学深圳研究生院 | Retrieval architecture and retrieval method |
| CN101576927A (en) * | 2009-06-18 | 2009-11-11 | 浙江大学 | Mobile terminal index-based information retrieval method |
| CN102053984A (en) * | 2009-11-10 | 2011-05-11 | 杜卓 | Systems and methods for information retrieval, information query and information issue |
| CN102760137A (en) * | 2011-04-27 | 2012-10-31 | 上海特易信息科技有限公司 | Distributed full-text search method and distributed full-text search system |
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