Movatterモバイル変換


[0]ホーム

URL:


CN109597879A - One kind being based on the business conduct Relation extraction method and device of " quotation relationship " data - Google Patents

One kind being based on the business conduct Relation extraction method and device of " quotation relationship " data
Download PDF

Info

Publication number
CN109597879A
CN109597879ACN201811463779.5ACN201811463779ACN109597879ACN 109597879 ACN109597879 ACN 109597879ACN 201811463779 ACN201811463779 ACN 201811463779ACN 109597879 ACN109597879 ACN 109597879A
Authority
CN
China
Prior art keywords
corpus
business conduct
word
business
quotation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811463779.5A
Other languages
Chinese (zh)
Other versions
CN109597879B (en
Inventor
蓝建敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinghua Information Science & Technology Co Ltd
Original Assignee
Jinghua Information Science & Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jinghua Information Science & Technology Co LtdfiledCriticalJinghua Information Science & Technology Co Ltd
Priority to CN201811463779.5ApriorityCriticalpatent/CN109597879B/en
Publication of CN109597879ApublicationCriticalpatent/CN109597879A/en
Application grantedgrantedCritical
Publication of CN109597879BpublicationCriticalpatent/CN109597879B/en
Activelegal-statusCriticalCurrent
Anticipated expirationlegal-statusCritical

Links

Classifications

Landscapes

Abstract

The invention discloses a kind of business conduct Relation extraction method and devices for being based on " quotation relationship " data, which comprises acquisition corpus, and the corpus is pre-processed and is constructed corpus;Business conduct word is extracted from the All Files title in the corpus, and the business conduct word is sorted out according to business scope, forms the corresponding business conduct dictionary in various functional areas;All Files title is extracted from the corpus and is drawn the relation data of file title, constructs quotation relational database;According to the quotation relational database, quantity and the number that simultaneously occurs of the statistical service behavior word with the business conduct word that is cited generate business conduct relationship, and construct business conduct relationship library.The present invention can be improved correlativity business, than single word distance closer to business authenticity, improve the knowledge retrieval accuracy of task based access control.

Description

One kind being based on the business conduct Relation extraction method and device of " quotation relationship " data
Technical field
The present invention relates to big data digging technology fields, more particularly to a kind of business conduct for being based on " quotation relationship " dataRelation extraction method and device.
Background technique
In the research and practice to the prior art, the inventors found that:
Conventional method one: many files, the business conduct in identification file are manually studied carefully, establishes related pass between behaviorSystem.Narrow, the relationship weight inaccuracy by the heavy workload of relationship, covering surface between artificial constructed business conduct completely.
Conventional method two: the distance between business conduct word is calculated using word2vec algorithm, to calculate business conductBetween correlativity.The correlativity business that this method calculates is not strong, cannot really meet wanting for retrieval relevant knowledgeIt asks.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of business conduct relationship for being based on " quotation relationship " dataAbstracting method and device can be improved correlativity business, than single word distance closer to business authenticity, improve and are based on appointingThe knowledge retrieval accuracy of business.
To solve the above problems, one embodiment of the present of invention provides a kind of business conduct for being based on " quotation relationship " dataRelation extraction method, comprising:
Corpus is acquired, and the corpus is pre-processed and constructed corpus;
Business conduct word is extracted from the All Files title in the corpus, and according to business scope to the business rowSorted out for word, forms the corresponding business conduct dictionary in various functional areas;
All Files title is extracted from the corpus and is drawn the relation data of file title, constructs quotation relationship numberAccording to library;
According to the quotation relational database, the quantity and simultaneously of statistical service behavior word and the business conduct word that is citedThe number of appearance generates business conduct relationship, and constructs business conduct relationship library.
Further, the acquisition corpus specifically, searching for existing corpus, and is downloaded from the Internet, grabs corpus;InstituteIt states and the corpus is pre-processed, specifically, carrying out corpus cleaning, participle, part-of-speech tagging to the corpus and removing stop words.
Further, the All Files title from the corpus extracts business conduct word, specific:
All Files title in the corpus is parsed and segmented;
Business conduct word is collected, including known business conduct word, continuous derivative business conduct word and the industry that need to be convertedBusiness behavior word;
It screens and tests business conduct word;
The business conduct word is initially sorted out and reasoning.
It is further, described to extract All Files title from the corpus and drawn the relation data of file title,Quotation relational database is constructed, specific:
Every file content in corpus is parsed, extracted file title and the relationship number for being drawn file titleAccording to;
According to the file title, business conduct label is stamped to every file, forms quotation relation data, and construct and drawLiterary relational database;Wherein, the quotation relation data, including file title, behavior label, drawn file title, drawn rowFor label.
Another embodiment of the invention also provides a kind of business conduct Relation extraction dress based on " quotation relationship " dataIt sets, comprising:
Corpus library module for acquiring corpus, and is pre-processed and is constructed corpus to the corpus;
Business conduct dictionary module for extracting business conduct word from the All Files title in the corpus, and is pressedThe business conduct word is sorted out according to business scope, forms the corresponding business conduct dictionary in various functional areas;
Quotation Relation DB module, for extracting All Files title from the corpus and being drawn file titleRelation data constructs quotation relational database;
Business conduct relationship library module, for according to the quotation relational database, statistical service behavior word be citedThe quantity of business conduct word and the number occurred simultaneously generate business conduct relationship, and construct business conduct relationship library.
Further, the corpus library module, is specifically used for: searching for existing corpus, and downloads from the Internet, grabs languageMaterial;Corpus cleaning, participle, part-of-speech tagging are carried out to the corpus and remove stop words.
Further, the business conduct dictionary module, is specifically used for:
All Files title in the corpus is parsed and segmented;
Business conduct word is collected, including known business conduct word, continuous derivative business conduct word and the industry that need to be convertedBusiness behavior word;
It screens and tests business conduct word;
The business conduct word is initially sorted out and reasoning.
Further, the quotation Relation DB module, is specifically used for:
Every file content in corpus is parsed, extracted file title and the relationship number for being drawn file titleAccording to;
According to the file title, business conduct label is stamped to every file, forms quotation relation data, and construct and drawLiterary relational database;Wherein, the quotation relation data, including file title, behavior label, drawn file title, drawn rowFor label.
Another embodiment of the invention also provides a kind of business conduct Relation extraction dress based on " quotation relationship " dataIt sets, which is characterized in that including processor, memory and store in the memory and be configured as being held by the processorCapable computer program, and when processor executes the computer program, is realized as above-mentioned based on " quotation relationship " dataBusiness conduct Relation extraction method.
Implementing the embodiment of the present invention can be improved correlativity business, truer closer to business than single word distanceProperty, improve the knowledge retrieval accuracy of task based access control.
Detailed description of the invention
Fig. 1 is the business conduct Relation extraction that one kind that one embodiment of the present of invention provides is based on " quotation relationship " dataThe flow diagram of method;
Fig. 2 is the business conduct Relation extraction that one kind that one embodiment of the present of invention provides is based on " quotation relationship " dataAnother flow diagram of method;
Fig. 3 be another embodiment of the present invention provides one kind be based on " quotation relationship " data business conduct relationship pumpingTake the structural schematic diagram of device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, completeSite preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every otherEmbodiment shall fall within the protection scope of the present invention.
In a first aspect, please referring to Fig. 1-2.One embodiment of the present of invention provides a kind of industry for being based on " quotation relationship " dataBusiness behavior relation abstracting method, comprising:
S1, acquisition corpus, and the corpus is pre-processed and is constructed corpus.
Wherein, the acquisition corpus specifically, searching for existing corpus, and is downloaded from the Internet, grabs corpus;It is described rightThe corpus is pre-processed, specifically, carrying out corpus cleaning, participle, part-of-speech tagging to the corpus and removing stop words.
In specific embodiment, mainly to each government official website acquisition center, the special policy of provincial government and neckSpeech file is led to be collected and arrange.
It is understood that the tissue such as many business department, companies can all accumulate a large amount of papery with business developmentOr e-text data.So, for these data, we are slightly integrated under conditions of permission, and the text papery is completePortion's electronization can serve as our corpus.
We, which are also an option that, obtains the open data set of national and foreign standards, for example, domestic Chinese Chinese have search dog corpus,People's Daily's corpus.Also it can choose and go to grab some data by crawler oneself, then carry out subsequent content.
In specific embodiment, corpus pretreatment can probably account for a complete Chinese natural language processing engineering and answerThe workload of 50%-70%, so developer's most of the time is just carrying out corpus pretreatment.It is washed below by dataClearly, participle, part-of-speech tagging, go four big aspects of stop words to complete the pretreatment work of corpus.
1. corpus cleans
Data cleansing, as the term suggests be exactly our interested things are found in corpus, it is uninterested, be considered as and make an uproarThe content of sound, which is cleaned, deletes, including extracts the information such as title, abstract, text for urtext, for the web page contents of crawl,Remove the codes and annotation etc. such as advertisement, label, HTML, JS.Common data cleansing mode has: artificial duplicate removal, alignment, deletion andMark etc. or Rule Extraction content, regular expression matching, according to part of speech and name entity extraction, write script or generationCode batch processing etc..
2. participle
Chinese corpus data is a collection of short text or long text, such as: sentence, article abstract, paragraph or entire chapter textA set of Zhang Zucheng.Word, word between general sentence, paragraph are that continuously, there is certain meaning.And carry out text miningWhen analysis, it is intended that the minimum unit granularity of text-processing is word or word, is incited somebody to action so just needing this when to segmentText is all segmented.
Common segmentation methods have: the segmenting method based on string matching, is based on statistics at the segmenting method based on understandingSegmenting method and rule-based segmenting method, correspond to many specific algorithms below every kind of method.
The Major Difficulties of current Chinese segmentation methods have ambiguity identification and new word identification, such as: " racket, which is sold, to be over ",This can be cut into " racket, which is sold, to be over ", can also be cut into " racket, which is sold, to be over ", if do not depend on context itsHis sentence is probably difficult to know how to understand.
3. part-of-speech tagging
Part-of-speech tagging is exactly to beat part of speech label, such as adjective, verb, noun to each word or word.Doing so canTo allow text to incorporate more useful language messages in processing below.Part-of-speech tagging is that a classical sequence labelling is askedTopic, but for the processing of some Chinese natural languages, part-of-speech tagging is not non-required.For example, common text classificationWith regard to not having to be concerned about part of speech problem, but similar sentiment analysis, knowledge reasoning are but needed, and the following figure is that common Chinese part of speech is wholeReason.
Common part-of-speech tagging method can be divided into rule-based and Statistics-Based Method.Wherein based on the side of statisticsMethod, part-of-speech tagging such as based on maximum entropy, based on statistics maximum probability output part of speech and based on the part-of-speech tagging of HMM.
4. removing stop words
Stop words refers generally to the words for not having any contribution function to text feature, such as punctuation mark, the tone, person etc.Some words.So after participle, a following step is exactly stop words in general text-processing.But for ChineseFor, go stop words operation be not it is unalterable, stop words dictionary is determined according to concrete scene, such as in emotion pointIn analysis, modal particle, exclamation mark should retain because they to indicate tone degree, emotion have certain contribution andMeaning.
S2, business conduct word is extracted from the All Files title in the corpus, and according to business scope to the industryBusiness behavior word is sorted out, and the corresponding business conduct dictionary in various functional areas is formed.
Wherein, the All Files title from the corpus extracts business conduct word, specific:
All Files title in the corpus is parsed and segmented;
Business conduct word is collected, including known business conduct word, continuous derivative business conduct word and the industry that need to be convertedBusiness behavior word;
It screens and tests business conduct word;
The business conduct word is initially sorted out and reasoning.
In specific embodiment, targetedly business conduct word can allow conversion ratio client to find entrance.
It specifically includes that
1. collecting business conduct word.
(1) constantly derivative business conduct word;
(2) existing business conduct word most people has no knowledge about and (does not know that these words have conversion ratio).It is understood thatIt is, as long as user's search, system can select out, as long as therefrom we find core word.
2. screening business conduct word.
It is constantly generated in new word, old word constantly disappears, and system can be screened constantly and produced either with or without new speciesIt is raw.Each word of but not is useful, it should which some words for obviously not meeting user demand are cut down.Apparently withoutBusiness conduct word removes.The test of business conduct word can not judge that business conduct word obtains to some.
3. business conduct word is tested.
Using testing tool, the conversion ratio of business conduct word is checked, but single cannot judged by conversion ratio, wherein also needingEach link, customer service are wanted, web site contents etc. are all the standards of conversion ratio height.After test, obtained business conductWord is exactly effective business conduct word.
4. business conduct word sorts out and reasoning.
S3, All Files title is extracted from the corpus and is drawn the relation data of file title, building quotation closesIt is database.It is specific:
Every file content in corpus is parsed, extracted file title and the relationship number for being drawn file titleAccording to;
According to the file title, business conduct label is stamped to every file, forms quotation relation data, and construct and drawLiterary relational database;Wherein, the quotation relation data, including file title, behavior label, drawn file title, drawn rowFor label.
In specific embodiment, when handling file, quotation relation data is extracted from the consulting database of referenceTo quotation relational database.
S4, according to the quotation relational database, the quantity of statistical service behavior word and the business conduct word that is cited andThe number occurred simultaneously generates business conduct relationship, and constructs business conduct relationship library.
The degree of correlation in specific embodiment, based on the number occurred simultaneously, between evaluation assignment behavior.
The present embodiment comparison is artificial and based on relationship between the building business conduct of word2vec algorithm, is primarily present following excellentPoint:
(1), artificial and machine combines, artificial constructed more efficient than simple.
(2), strong relationship between the implicit business of quotation relation data, than single word distance closer to business authenticity, instituteWith more strong correlation on the business relations that are constructed than word2vec algorithm.
Implementing the embodiment of the present invention can be improved correlativity business, truer closer to business than single word distanceProperty, improve the knowledge retrieval accuracy of task based access control.
Second aspect, as shown in figure 3, another embodiment of the invention also provides one kind based on " quotation relationship " dataBusiness conduct Relation extraction device, comprising:
Corpus library module 21 for acquiring corpus, and is pre-processed and is constructed corpus to the corpus.
Wherein, the corpus library module 21, is specifically used for: searching for existing corpus, and downloads from the Internet, grabs corpus;Corpus cleaning, participle, part-of-speech tagging are carried out to the corpus and remove stop words.
In specific embodiment, mainly to each government official website acquisition center, the special policy of provincial government and neckSpeech file is led to be collected and arrange.
It is understood that the tissue such as many business department, companies can all accumulate a large amount of papery with business developmentOr e-text data.So, for these data, we are slightly integrated under conditions of permission, and the text papery is completePortion's electronization can serve as our corpus.
We, which are also an option that, obtains the open data set of national and foreign standards, for example, domestic Chinese Chinese have search dog corpus,People's Daily's corpus.Also it can choose and go to grab some data by crawler oneself, then carry out subsequent content.
In specific embodiment, corpus pretreatment can probably account for a complete Chinese natural language processing engineering and answerThe workload of 50%-70%, so developer's most of the time is just carrying out corpus pretreatment.It is washed below by dataClearly, participle, part-of-speech tagging, go four big aspects of stop words to complete the pretreatment work of corpus.
Business conduct dictionary module 22, for extracting business conduct word from the All Files title in the corpus, andThe business conduct word is sorted out according to business scope, forms the corresponding business conduct dictionary in various functional areas.
Wherein, the business conduct dictionary module 22, is specifically used for:
All Files title in the corpus is parsed and segmented;
Business conduct word is collected, including known business conduct word, continuous derivative business conduct word and the industry that need to be convertedBusiness behavior word;
It screens and tests business conduct word;
The business conduct word is initially sorted out and reasoning.
In specific embodiment, targetedly business conduct word can allow conversion ratio client to find entrance.
It specifically includes that
1. collecting business conduct word.
(1) constantly derivative business conduct word;
(2) existing business conduct word most people has no knowledge about and (does not know that these words have conversion ratio).It is understood thatIt is, as long as user's search, system can select out, as long as therefrom we find core word.
2. screening business conduct word.
It is constantly generated in new word, old word constantly disappears, and system can be screened constantly and produced either with or without new speciesIt is raw.Each word of but not is useful, it should which some words for obviously not meeting user demand are cut down.Apparently withoutBusiness conduct word removes.The test of business conduct word can not judge that business conduct word obtains to some.
3. business conduct word is tested.
Using testing tool, the conversion ratio of business conduct word is checked, but single cannot judged by conversion ratio, wherein also needingEach link, customer service are wanted, web site contents etc. are all the standards of conversion ratio height.After test, obtained business conductWord is exactly effective business conduct word.
4. business conduct word sorts out and reasoning.
Quotation Relation DB module 23, for extracting All Files title from the corpus and being drawn file titleRelation data, construct quotation relational database.
Wherein, the quotation Relation DB module 23, is specifically used for:
Every file content in corpus is parsed, extracted file title and the relationship number for being drawn file titleAccording to;
According to the file title, business conduct label is stamped to every file, forms quotation relation data, and construct and drawLiterary relational database;Wherein, the quotation relation data, including file title, behavior label, drawn file title, drawn rowFor label.
In specific embodiment, when handling file, quotation relation data is extracted from the consulting database of referenceTo quotation relational database.
Business conduct relationship library module 24, for according to the quotation relational database, statistical service behavior word with drawnThe number occurred with the quantity of business conduct word and simultaneously, generates business conduct relationship, and construct business conduct relationship library.
The degree of correlation in specific embodiment, based on the number occurred simultaneously, between evaluation assignment behavior.
Implementing the embodiment of the present invention can be improved correlativity business, truer closer to business than single word distanceProperty, improve the knowledge retrieval accuracy of task based access control.
Another embodiment of the invention also provides a kind of business conduct Relation extraction dress based on " quotation relationship " dataIt sets, which is characterized in that including processor, memory and store in the memory and be configured as being held by the processorCapable computer program, and when processor executes the computer program, is realized as above-mentioned based on " quotation relationship " dataBusiness conduct Relation extraction method.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the artFor, without departing from the principle of the present invention, several improvement and deformations can also be made, these improvement and deformations are also considered asProtection scope of the present invention.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be withRelevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage mediumIn, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magneticDish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random AccessMemory, RAM) etc..

Claims (9)

CN201811463779.5A2018-11-302018-11-30Service behavior relation extraction method and device based on 'citation relation' dataActiveCN109597879B (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
CN201811463779.5ACN109597879B (en)2018-11-302018-11-30Service behavior relation extraction method and device based on 'citation relation' data

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
CN201811463779.5ACN109597879B (en)2018-11-302018-11-30Service behavior relation extraction method and device based on 'citation relation' data

Publications (2)

Publication NumberPublication Date
CN109597879Atrue CN109597879A (en)2019-04-09
CN109597879B CN109597879B (en)2022-03-29

Family

ID=65959447

Family Applications (1)

Application NumberTitlePriority DateFiling Date
CN201811463779.5AActiveCN109597879B (en)2018-11-302018-11-30Service behavior relation extraction method and device based on 'citation relation' data

Country Status (1)

CountryLink
CN (1)CN109597879B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN110516069A (en)*2019-08-282019-11-29中南大学 A Method of Extracting Citation Metadata Based on FastText-CRF

Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2000222427A (en)*1999-02-022000-08-11Mitsubishi Electric Corp Related word extraction device, related word extraction method, and storage medium storing related word extraction program
CN104035975A (en)*2014-05-232014-09-10华东师范大学Method utilizing Chinese online resources for supervising extraction of character relations remotely
CN104537063A (en)*2014-12-292015-04-22北京理工大学Knowledge venation map construction system and method based on thesis citation network
CN105631018A (en)*2015-12-292016-06-01上海交通大学Article feature extraction method based on topic model
CN105653706A (en)*2015-12-312016-06-08北京理工大学Multilayer quotation recommendation method based on literature content mapping knowledge domain
CN108509481A (en)*2018-01-182018-09-07天津大学Draw the study frontier visual analysis method of cluster altogether based on document

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2000222427A (en)*1999-02-022000-08-11Mitsubishi Electric Corp Related word extraction device, related word extraction method, and storage medium storing related word extraction program
CN104035975A (en)*2014-05-232014-09-10华东师范大学Method utilizing Chinese online resources for supervising extraction of character relations remotely
CN104537063A (en)*2014-12-292015-04-22北京理工大学Knowledge venation map construction system and method based on thesis citation network
CN105631018A (en)*2015-12-292016-06-01上海交通大学Article feature extraction method based on topic model
CN105653706A (en)*2015-12-312016-06-08北京理工大学Multilayer quotation recommendation method based on literature content mapping knowledge domain
CN108509481A (en)*2018-01-182018-09-07天津大学Draw the study frontier visual analysis method of cluster altogether based on document

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
宋宁 等: "基于引用背景信息的关键词自动抽取方法研究", 《情报理论与实践》*
陈翀 等: "利用引用信息的关键词提取", 《图书情报工作》*

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN110516069A (en)*2019-08-282019-11-29中南大学 A Method of Extracting Citation Metadata Based on FastText-CRF

Also Published As

Publication numberPublication date
CN109597879B (en)2022-03-29

Similar Documents

PublicationPublication DateTitle
CN109189942B (en) Method and device for constructing knowledge graph of patent data
Gamon et al.Pulse: Mining customer opinions from free text
US10437867B2 (en)Scenario generating apparatus and computer program therefor
EP2664997B1 (en)System and method for resolving named entity coreference
CN104915446B (en)Event Evolvement extraction method and its system based on news
US10095685B2 (en)Phrase pair collecting apparatus and computer program therefor
CN104063387B (en)Apparatus and method of extracting keywords in the text
Halibas et al.Application of text classification and clustering of Twitter data for business analytics
CN105760439B (en)A kind of personage's cooccurrence relation map construction method based on specific behavior co-occurrence network
US20180260860A1 (en)A computer-implemented method and system for analyzing and evaluating user reviews
US20060089924A1 (en)Document categorisation system
CN110781679B (en)News event keyword mining method based on associated semantic chain network
CN105975453A (en)Method and device for comment label extraction
EP3086240A1 (en)Complex predicate template gathering device, and computer program therefor
WO2016036345A1 (en)External resource identification
CN109783623A (en)The data analysing method of user and customer service dialogue under a kind of real scene
CN113515624B (en) A Text Classification Method for Emergency News
Jianqiang et al.Combining semantic and prior polarity for boosting twitter sentiment analysis
CN111966792A (en)Text processing method and device, electronic equipment and readable storage medium
KR102604582B1 (en)Key Phrase extraction and accuracy evaluation method for building integrated construction disaster DB
CN107341142B (en)Enterprise relation calculation method and system based on keyword extraction and analysis
Laya et al.Classification of natural disaster on online news data using machine learning
CN109597879A (en)One kind being based on the business conduct Relation extraction method and device of " quotation relationship " data
CN108717637B (en)Automatic mining method and system for E-commerce safety related entities
CN112686054B (en)Public opinion analysis method and system based on seismic content hot spot

Legal Events

DateCodeTitleDescription
PB01Publication
PB01Publication
SE01Entry into force of request for substantive examination
SE01Entry into force of request for substantive examination
GR01Patent grant
GR01Patent grant

[8]ページ先頭

©2009-2025 Movatter.jp