WO2020134213A1 - 基于知识图谱查询金融异常数据的方法及系统 - Google Patents
基于知识图谱查询金融异常数据的方法及系统 Download PDFInfo
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- the invention relates to the technical field of financial anti-fraud, in particular to a method and system for querying financial abnormal data based on knowledge graphs.
- the prior art mainly uses telephone return visits or secondary identity confirmation to identify frauds.
- the above-mentioned methods can play a certain recognition effect on short-answer frauds, but for carefully packaged frauds, Because it involves a complicated relationship network, it is difficult to accurately identify by means of telephone return visit or secondary identity confirmation, so this also brings new challenges to fraud identification.
- the purpose of the present invention is to provide a method and system for querying financial abnormal data based on knowledge graphs, which can accurately and quickly identify abnormal financial data therein by using a knowledge graph.
- one aspect of the present invention provides a method for querying financial abnormal data based on a knowledge graph, including:
- Design the structure of the graph database according to the query requirements of financial abnormal data the structure includes the expression of nodes and the relationship between nodes;
- the method for designing the structure of the graph database according to the query requirements of financial abnormal data includes:
- the query requirement of the abnormal financial data includes finding out the information of illegal intermediaries from the registration information of multiple lenders, and the registration information of the lender includes lender information, contact information, transferor information and/or recipient information, Wherein, the information includes name data, telephone data and identification code data;
- the graph database is designed according to the principle that one node corresponds to one data.
- the method of collecting a plurality of sample source data and cleaning the data to obtain a plurality of sample data conforming to the structure of the atlas database includes:
- the double-checked sample source data is checked for legality, and the invalid sample source data of telephone data and/or ID code data is removed, and finally valid sample data is retained.
- the method for identifying that the phone data and/or ID code data is invalid is:
- the method of identifying financial abnormal data from the knowledge graph includes:
- a plurality of the sample data are distributed and developed in the form of nodes, and the relation nodes form a knowledge graph by indicating line association;
- the relationship nodes are selected from the knowledge graph, and then the illegal intermediary information is found from the selected relationship nodes.
- the method of filtering out the relationship nodes from the knowledge graph according to the input query statement, and then finding out the information of the illegal intermediary from the filtered relationship nodes includes:
- An abnormal node identification threshold is set, and when the degree of relevance of the relationship node is greater than the threshold, a node in the relationship node that is consistent with the query sentence type is output to obtain a query result of illegal intermediary information.
- the degree of association is defined according to the number of indicator lines connected to the node.
- the method for querying financial abnormal data based on knowledge graph provided by the present invention has the following beneficial effects:
- the structure of the graph database needs to be designed first according to the user's query requirements for financial abnormal data.
- the financial abnormal data query needs to query illegal intermediary information from lenders
- the illegal intermediary information that the platform can obtain includes not only the name, but also its effective identification information such as its telephone and identification code, so when designing the structure of the graph database, three types of nodes can be selected.
- the relationship node uses the indication line association to correspond to the structure of the design atlas database, and then collects multiple sample source data from the platform, after the data is cleaned, a CSV file that can be recognized by the atlas database is formed, and finally the CSV file is imported into the atlas
- the database constructs a knowledge graph of sample data. By filtering out the nodes whose correlation degree is higher than the threshold from the knowledge graph, the corresponding information data in the nodes are extracted and output as financial abnormal data, such as the name of the illegal intermediary, telephone or ID code, etc. Identification data.
- the present invention adopts the method of inputting a large amount of sample data into a graph database to form a knowledge graph to identify financial abnormal data.
- the knowledge graph is good at handling complex network relationships and expresses multiple sample data in a structured network. Accurately identify financial abnormal data.
- Another aspect of the present invention provides a system for querying financial anomaly data based on knowledge graph, which is applied to the method for querying financial anomaly data based on knowledge graph described in the above technical solution, the system includes:
- the graph design unit is used to design the structural composition of the graph database according to the query requirements of financial abnormal data, and the structural composition includes expressions of nodes and relationships between the nodes;
- the sample collection unit is used to collect multiple sample source data, and after cleaning the data, obtain multiple sample data conforming to the structure of the graph database;
- the identification output unit is configured to import the sample data into the graph database to output a knowledge graph, and then identify financial abnormal data from the knowledge graph.
- the sample collection unit includes:
- Information collection module used to obtain multiple lender registration information from the database, and extract lender information, contact information, transferor information and/or recipient information from each lender registration information as sample source data ;
- the screening module is used for preliminary screening of the sample source data, excluding sample source data that does not include name data, phone data or ID code data;
- Duplicate check module used to check duplicate sample source data and delete duplicate sample source data
- the verification module is used to verify the legality of the sample source data after double-checking, remove the invalid sample source data of the phone data and/or ID code data, and finally retain the valid sample data.
- the identification output unit includes:
- the pre-storage module is used to preset a variety of financial abnormal data query statements in Cypher language, including abnormal name query statements, abnormal phone query statements or abnormal identification code query statements;
- the setting module is used to set the abnormal name query statement, abnormal phone query statement or abnormal ID code query statement on the query interface in a modular form, so that the user can select the query statement input according to the query needs of the financial abnormal data;
- a processing module configured to distribute and expand a plurality of the sample data in the form of nodes, and the relationship nodes are related to each other to form a knowledge graph by indicating lines;
- the query output module is used to filter out the relationship nodes from the knowledge graph according to the input query statement, and then identify the financial abnormal data from the filtered relationship nodes and output them in the form of query results.
- the beneficial effects of the system for querying financial anomaly data based on knowledge graph provided by the present invention are the same as the beneficial effects of the method for querying financial anomaly data based on knowledge graph provided by the above technical solution, which will not be repeated here.
- FIG. 1 is a schematic flowchart of a method for querying financial abnormal data based on a knowledge graph in Embodiment 1 of the present invention
- FIG. 2 is a structural block diagram of a system for querying financial abnormal data based on a knowledge graph in Embodiment 2 of the present invention.
- FIG. 1 is a schematic flowchart of a method for querying financial abnormal data based on a knowledge graph in Embodiment 1 of the present invention.
- this embodiment provides a method for querying financial abnormal data based on a knowledge graph, including:
- the structural composition includes the expression of nodes and the relationships between nodes; collect multiple sample source data, and clean the data to obtain multiple sample data that conform to the structure of the graph database; The sample data is imported into the graph database to output the knowledge graph, and then the financial abnormal data is found from the knowledge graph.
- the structure of the graph database needs to be designed first according to the user's query needs for financial anomaly data.
- the financial anomaly data query needs to query illegal intermediaries from lenders
- the illegal intermediary information that the platform can obtain includes not only the name, but also its effective identification information such as its telephone and identification code, so when designing the structure of the graph database, three types of nodes can be selected.
- the node represents a piece of information data, and the relationship node uses the indicator line association to correspond to the structure of the design atlas database. After that, multiple sample source data is collected from the platform. After the data is cleaned, a CSV file that can be recognized by the atlas database is formed.
- the graph database constructs a knowledge graph of sample data, and selects nodes with a correlation degree higher than the threshold from the knowledge graph, and extracts the corresponding information data in the nodes to output as financial abnormal data, such as the name of illegal intermediaries, telephones, or identification codes. Identification data.
- a large amount of sample data is input into the graph database to form a knowledge graph to identify financial abnormal data.
- the knowledge graph is good at handling complex network relationships, and multiple sample data are expressed in a structured network, and then quickly , Accurately identify financial abnormal data.
- the method for designing the structure of the graph database according to the query requirements of financial abnormal data in the foregoing embodiment includes:
- the query requirements for abnormal financial data include finding out the information of illegal intermediaries from the registration information of multiple lenders.
- the registration information of lenders includes lender information, contact information, transferor information and/or recipient information.
- the information includes Name data, telephone data and ID code data; based on multiple data types, correspondingly set multiple node types, and design the graph database according to the principle of one node corresponding to one data.
- the installment loan shopping is used as an example for explanation.
- the platform can obtain the information of the above-mentioned related personnel including name data, phone data and ID code data, when designing the structure of the graph database, you can set three correspondingly in the graph database.
- Each type of node corresponds to the above three kinds of data.
- the method for collecting multiple sample source data in the above embodiment and cleaning the data to obtain multiple sample data conforming to the structure of the graph database includes:
- the sample source data that does not conform to the structure of the atlas database is eliminated. If there are multiple loan records for the same lender, the platform will record multiple copies of the same lender.
- the lender registration information may have duplicate lender registration information, so when the sample source data is obtained, the sample source data will be deduplicated, and then the duplicated sample source data will be checked for legality and removed Sample source data of invalid phone data and/or ID code data, and finally retain valid sample data.
- the identification method of invalid phone data and/or ID code data is: by comparing phone data and/or ID code The length of the data is consistent with the standard phone number and/or standard identification code to determine whether it is invalid. For example, the mobile phone number that is not 11 digits and the identification code that is not 18 digits in the sample source data are determined to be invalid.
- the method for identifying financial abnormal data from the knowledge graph in the above embodiment includes:
- Cypher language to preset a variety of financial abnormal data query statements, including abnormal name query statements, abnormal phone query statements or abnormal ID code query statements; use abnormal name query statements, abnormal phone query statements or abnormal ID code query statements as modules It is set on the query interface to enable users to select the input of query statements according to the query requirements of financial abnormal data; distribute multiple sample data in the form of nodes, and the relationship nodes are linked by indicator lines to form a knowledge graph; based on the input query The sentence selects the relationship nodes from the knowledge graph, and then finds the information of illegal intermediaries from the relationship nodes.
- this embodiment adopts a query module edited by presetting Cypher statements on the platform query interface, such as an illegal intermediary name query module or an illegal intermediary telephone query module , So that business personnel can directly drag the name query module of the illegal intermediary to the query box of the platform when searching for the name of the illegal intermediary.
- the program receives the query instruction, it filters out the relationship nodes from the knowledge graph.
- the relationship nodes here include Name data, telephone data and ID code data of the illegal intermediary, and finally find out the output result of the illegal intermediary's name data from the relationship node.
- each sample data includes three types of data such as name, phone or ID
- the way of the indicator line associates the three nodes in the same sample data.
- the nodes with the same data are deduplicated, and then the indicator line connected to the deleted node is transferred.
- a knowledge graph is finally formed.
- this embodiment has the following advantages:
- the above method of filtering out relation nodes from the knowledge graph according to the input query sentence, and then finding out the information of illegal intermediaries from the selected relation nodes includes:
- the degree of association is defined according to the number of indicator lines connected to the node.
- this embodiment provides a system for querying financial abnormal data based on knowledge graphs, including:
- the graph design unit 1 is used to design the structural composition of the graph database according to the query requirements of financial abnormal data, and the structural composition includes expressions of nodes and relationships between the nodes;
- the sample collection unit 2 is used to collect multiple sample source data, and after cleaning the data, obtain multiple sample data conforming to the structure of the atlas database;
- the identification output unit 3 is used to import sample data into a graph database to output a knowledge graph, and then find financial abnormal data from the knowledge graph.
- the sample collection unit 2 includes:
- the information collection module 21 is used to obtain multiple lender registration information from the database, and extract the lender information, contact information, transferor information and/or recipient information from each lender registration information as a sample source data;
- the screening module 22 is used for preliminary screening of sample source data, excluding sample source data that does not include name data, telephone data or ID code data;
- Duplicate check module 23 used to check duplicate sample source data and delete duplicate sample source data
- the verification module 24 is used to verify the validity of the sample source data after the double-checking, remove the sample source data that is invalid for the phone data and/or ID code data, and finally retain the valid sample source data.
- the identification output unit 3 includes:
- the pre-storage module 31 is used to preset a variety of financial abnormal data query statements in Cypher language, including abnormal name query statements, abnormal phone query statements or abnormal identification code query statements;
- the setting module 32 is used to set the abnormal name query sentence, the abnormal phone query sentence or the abnormal identification code query sentence on the query interface in a modular form, so that the user can select the corresponding query sentence input according to the query needs of the financial abnormal data;
- the processing module 33 is used to distribute and expand a plurality of sample data in the form of nodes, and the relationship nodes are related to each other to form a knowledge graph by indicating lines;
- the query output module 34 is used to filter out the relationship nodes from the knowledge graph according to the input query statement, and then identify the financial abnormal data from the filtered relationship nodes to output in the form of query results.
- the beneficial effects of the system for querying financial abnormal data based on knowledge graphs provided by the embodiments of the present invention are the same as the beneficial effects of the method for querying financial abnormal data based on knowledge graphs provided in Embodiment 1 above, and details are not described herein.
- the above program can be stored in a computer-readable storage medium.
- the program When executed, it includes Each step of the method in the foregoing embodiment, and the storage medium may be: ROM/RAM, magnetic disk, optical disk, memory card, or the like.
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Claims (10)
- 一种基于知识图谱查询金融异常数据的方法,其特征在于,包括:根据金融异常数据的查询需求设计图谱数据库的结构构成,所述结构构成包括节点及节点间关系的表述;采集多个样本源数据,对其数据清洗后得到多个符合图谱数据库结构构成的样本数据;将所述样本数据导入所述图谱数据库输出知识图谱,然后从所述知识图谱中查找出金融异常数据。
- 根据权利要求1所述的方法,其特征在于,根据金融异常数据的查询需求设计图谱数据库的结构构成的方法包括:所述金融异常数据的查询需求包括从多位贷款人登记信息中查找出非法中介人信息,所述贷款人登记信息包括贷款人信息、联系人信息、转账人信息和/或收件人信息,其中,所述信息包括姓名数据、电话数据和身份识别码数据;基于多种数据类型对应设置多种节点类型,按照一节点对应一数据的原则设计图谱数据库。
- 根据权利要求2所述的方法,其特征在于,所述采集多个样本源数据,对其数据清洗后得到多个符合图谱数据库结构构成的样本数据的方法包括:从数据库中获取多份贷款人登记信息,并从中提取每份贷款人登记信息中的贷款人信息、联系人信息、转账人信息和/或收件人信息作为样本源数据;对所述样本源数据初步筛查,剔除不包括姓名数据、电话数据或身份识别码数据的样本源数据;对保留下的样本源数据进行查重,删除重复的样本源数据;将查重后的样本源数据进行合法性校验,去除电话数据和/或身份识别码数据无效的样本源数据,最终保留有效的样本数据。
- 根据权利要求3所述的方法,其特征在于,所述电话数据和/或身份识别码数据无效的识别方法为:通过比对电话数据和/或身份识别码数据与标准电话号码和/或标准身份识别码的长度是否一致来判断是否无效。
- 根据权利要求2所述的方法,其特征在于,从所述知识图谱中识别出金融异常数据的方法包括:采用Cypher语言预设多种金融异常数据查询语句,包括异常姓名查询语句、异常电话查询语句或异常身份识别码查询语句;将异常姓名查询语句、异常电话查询语句或异常身份识别码查询语句以模块化的形式设置在查询界面上,以使用户根据金融异常数据的查询需求对应选择查询语句输入;将多个所述样本数据以节点形式分布展开,关系节点通过指示线关联形成知识图谱;根据输入的查询语句从知识图谱中筛选出关系节点,再从筛选出的关系节点中查找出非法中介人信息。
- 根据权利要求5所述的方法,其特征在于,根据输入的查询语句从知识图谱中筛选出关系节点,再从筛选出的关系节点中查找出非法中介人信息的方法包括:设置异常节点识别阈值,当关系节点的关联度大于所述阈值时将关系节点中与所述查询语句类型一致的节点输出,得到非法中介人信息的查询结果。
- 根据权利要求5或6所述的方法,其特征在于,所述关联度是根据与节点连接的指示线数量定义得到的。
- 一种基于知识图谱查询金融异常数据系统,其特征在于,包括:图谱设计单元,用于根据金融异常数据的查询需求设计图谱数据库的结构构成,所述结构构成包括节点及节点间关系的表述;样本采集单元,用于采集多个样本源数据,对其数据清洗后得到多个符合图谱数据库结构构成的样本数据;识别输出单元,用于将所述样本数据导入所述图谱数据库输出知识图谱,然后从所述知识图谱中查找出金融异常数据。
- 根据权利要求8所述的系统,其特征在于,所述样本采集单元包括:信息采集模块,用于从数据库中获取多份贷款人登记信息,并从中提取每份贷款人登记信息中的贷款人信息、联系人信息、转账人信息和/或收件人信息作为样本源数据;筛查模块,用于对所述样本源数据初步筛查,剔除不包括姓名数据、电话数据或身份识别码数据的样本源数据;查重模块,用于对保留下的样本源数据进行查重,删除重复的样本源数据;校验模块,用于将查重后的样本源数据进行合法性校验,去除电话数据和/或身份识别码数据无效的样本源数据,最终保留有效的样本数据。
- 根据权利要求8所述的系统,其特征在于,所述识别输出单元包括:预存储模块,用于采用Cypher语言预设多种金融异常数据查询语句,包括异常姓名查询语句、异常电话查询语句或异常身份识别码查询语句;设置模块,用于将异常姓名查询语句、异常电话查询语句或异常身份识别码查询语句以模块化的形式设置在查询界面上,以使用户根据金融异常数据的查询需求对应选择查询语句输入;处理模块,用于将多个所述样本数据以节点形式分布展开,关系节点通过指示线关联形成知识图谱;查询输出模块,用于根据输入的查询语句从知识图谱中筛选出关系节点, 再从筛选出的关系节点中识别出金融异常数据以查询结果形式输出。
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