WO2015032123A1

WO2015032123A1 - Method and device for extracting number from e-mail

Info

Publication number: WO2015032123A1
Application number: PCT/CN2013/086174
Authority: WO
Inventors: 陈颖棠; 叶远鹏
Original assignee: 盈世信息科技(北京)有限公司
Priority date: 2013-09-04
Filing date: 2013-10-29
Publication date: 2015-03-12
Also published as: CN103490980A; CN103490980B

Abstract

Disclosed are a method and device for extracting a number from an e-mail. The method comprises: recognizing a single symbol in an e-mail and obtaining a recognition result; conducting classification determination on the recognition result and obtaining a determination result; and converting the determination result, and obtaining a pure digital number string. By implementing the embodiments of the present invention, a number with a separator and a symbolic number in a subject or content of an e-mail can be recognized, and a mixed number can be converted into a pure digital number string, which can reduce the difficulty of number extraction and reduce the consumption of resources; and analysis of an anti-spam module and the application of a rule in the e-mail can be facilitated, so that it can be rapidly recognized that it is a spam e-mail, which is convenient for a user.

Description

Method for extracting number in email and device thereof

[0001] The present invention relates to the field of electronic mail technologies, and in particular, to a method for extracting numbers in an email and an apparatus therefor. Background technique

[0002] With the continuous development of mobile terminal technology, various mobile devices such as mobile phones, PDAs, tablets, and notebooks have become an indispensable part of people's work and life, and e-mail is the most commonly used function for people's office and communication. one. In various applications of Internet users, e-mail is a commonly used basic application. Users can send information to each other by sending e-mails, which is very convenient, but also generates junk e-mail problems.

[0003] Spam email refers to any email that is forcibly sent to a user's email address without the permission of the user (receiver). The content of the spam email includes promotional advertisements, adult advertisements, earning information, or computer viruses. As a result, the computer system of the recipient user is compromised. These spam emails have caused problems for mailbox users and affected the user experience of mailbox users. Therefore, all major mail providers have made the promotion of email anti-spam system an important concern for improving the experience of mailbox users.

[0004] In the prior art, there is a method of identifying whether an email is a spam email by extracting a number. The extraction of the number is mainly extracted in the email subject and the content of the email, and the main purpose is to be applied as an additional feature of the email. In the anti-spam field, such as spam with contact information, the extracted number can be compared with the data in the database containing the junk number to identify whether the e-mail is spam. The existing technology for extracting numbers exists. Two ways, one is that most of the number extraction is to directly find the number string that is all digital, and the other way is to use the regular expression for number extraction.

[0005] The method of directly searching for all-digital number extraction has narrow applicability, and is only applicable to continuous numeric strings, and cannot identify numbers with delimiters; and the use of regular expressions for number identification only recognizes and extracts rules. Strings, due to their powerful features, make writing and test validation more difficult and resource intensive. The numbers extracted by the above two methods are original strings, which cannot be converted into general pure numeric strings, which is inconvenient for the analysis of anti-spam modules and the application of rules.

Summary of the invention

[0006] The object of the present invention is to overcome the deficiencies of the prior art. The present invention provides a method for extracting numbers in an email and an apparatus thereof, which can reduce the difficulty of number extraction and reduce resource consumption.

[0007] In order to solve the above problem, the present invention provides a method for extracting a number in an email, the method comprising: Identifying a single symbol in the email and obtaining a recognition result;

Performing classification determination on the recognition result to obtain a determination result;

The determination result is converted to obtain a pure numeric number string.

[0008] Preferably, the step of identifying a single symbol in the email and obtaining the recognition result comprises: identifying, according to the character encoding, that the symbol is a single-byte symbol or a double-byte symbol.

[0009] Preferably, the step of performing classification determination on the identification result, and obtaining the determination result includes:

When it is determined that the symbol is a single-byte symbol, it is determined according to the character encoding whether it is a single-byte pure number, or whether it is a single-byte separator;

When it is determined that the symbol is a double-byte symbol, it is determined based on the character encoding whether it is a double-byte symbol number, or whether it is a double-byte separator.

[0010] Preferably, the step of converting the determination result to obtain a pure digital number string comprises:

If it is determined to be a single-byte pure number, the number is directly recorded;

If it is determined to be a double-byte character, it is converted to a single-byte character and converted to a pure numeric number.

[0011] Preferably, the method further comprises: performing a verification record on the pure digital number string.

[0012] Correspondingly, the present invention further provides an apparatus for extracting numbers in an email, the apparatus comprising:

An identification module, configured to identify a single symbol in the email, and obtain a recognition result;

a determination module, configured to perform classification determination on the recognition result obtained by the identification module, to obtain a determination result; and a conversion module, configured to convert the determination result obtained by the determination module to obtain a pure digital number string.

[0013] Preferably, the identifying module is configured to identify, according to the character encoding, that the symbol is a single-byte symbol or a double-byte symbol.

[0014] Preferably, the determining module is further configured to: when determining that the symbol is a single-byte symbol, determine whether it is a single-byte pure number according to the character encoding, or whether it is a single-byte separator; When it is determined that the symbol is a double-byte symbol, it is determined according to the character encoding whether it is a double-byte symbol number, or whether it is a double-byte separator.

[0015] Preferably, the conversion module is configured to directly record the number if the determination result is a single-byte pure number, and to convert to a single if the determination result is a double-byte character Byte characters, and converted to a pure numeric number.

[0016] Preferably, the device further includes: an inspection record module, configured to perform inspection record on the pure digital number string.

[0017] Embodiments of the present invention can identify a delimited number and a symbol number in a subject or content of an email, and convert the mixed number into a pure numeric number string, which can reduce the difficulty of number extraction and reduce resources. Consumption; and the analysis of anti-spam modules in emails and the application of rules to quickly identify whether it is spam or not, which is convenient for users.

DRAWINGS [0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings.

1 is a schematic flowchart of a method for extracting numbers in an email according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a device for extracting numbers in an email according to an embodiment of the present invention.

detailed description

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

[0021] The main function of the anti-spam module in the e-mail system is to analyze e-mail, perform feature recording and statistics, and determine whether it is junk e-mail, while the traditional anti-spam module cannot identify "400-235-335". The meaning of "400-235335" is the same, it refers to "400235335", and the system can only determine that the two sets of numbers are different. Therefore, a unified number representation is needed to allow the email system to recognize and avoid the interference caused by the difference in symbols.

1 is a schematic flowchart of a method for extracting numbers in an email according to an embodiment of the present invention. As shown in FIG. 1, the method includes:

5101, identifying a single symbol in the email, and obtaining a recognition result;

5102, classifying and determining the recognition result, and obtaining a determination result;

5103. Convert the determination result to obtain a pure numeric number string.

[0023] wherein, in S101, the symbol is identified as a single-byte symbol or a double-byte symbol according to the character encoding. It is recognized whether the extracted symbol is a single-byte symbol or a double-byte symbol depending on the character of the character encoding (whether the highest bit is 1 or not). If the symbol is a single-byte symbol, one byte of content is taken; if the symbol is a double-byte symbol, two bytes of content are taken.

[0024] In S102, when the determining symbol is a single-byte symbol, determining whether it is a single-byte pure number according to the character encoding, or whether it is a single-byte separator; when the determining symbol is a double-byte symbol, according to the character The encoding determines whether it is a double-byte symbol number, or whether it is a double-byte separator.

[0025] In a specific implementation, if the symbol is a single-byte symbol, it is determined according to the content of the character encoding whether it is a single-byte pure number "0-9", or whether it is a single-byte separator; if the symbol is a double word When the symbol is used, it is determined according to the content of the character encoding, whether it is a symbol number (such as "9", such as "9" is 0xA2, OxEl), or whether it is a double-byte separator.

[0026] In S103, if it is determined to be a single-byte pure number, the number is directly recorded; if it is determined to be a double-byte character, Convert to single-byte characters and convert to a pure numeric number.

[0027] In a specific implementation, if it is a single-byte pure number, it records directly; if it is a connector, it acquires and continues processing to obtain the next symbol; if it is a double-byte character, it is converted into a corresponding single-byte character. (Because such symbol encoding is continuous, as long as the value subtracted from the starting code is the number to be converted, such as 9, OxEl - 0xA8 =0x39, the number "9" is encoded as 0x39); if other, Then, the current number extraction is completed, and the verification number needs to be recorded, the length of the number, and the like.

[0028] Further, after obtaining the pure digital number string, the pure digital number string can also be inspected, including whether it is a pure digital number, whether the length of the number meets the requirements, and whether recording is required or the like.

[0029] Embodiments of the method of the present invention can identify a delimited number and a symbol number in a subject or content of an email, and convert the mixed number into a pure numeric number string, which can reduce the difficulty of number extraction, and Reduce resource consumption; and facilitate the analysis of anti-spam modules in emails and the application of rules to quickly identify whether it is spam or not, which is convenient for users.

An embodiment of the present invention further provides an apparatus for extracting numbers in an email. As shown in FIG. 2, the apparatus includes: an identification module 1 configured to identify a single symbol in an email, and obtain a recognition result. ;

The determining module 2 is configured to perform classification determination on the recognition result obtained by the identification module 1 to obtain a determination result, and the conversion module 3 is configured to convert the determination result obtained by the determination module 2 to obtain a pure digital number string.

[0031] The identification module 1 is configured to identify the symbol as a single-byte symbol or a double-byte symbol according to the character encoding. The specific way is: According to the characteristics of the character encoding (whether the highest bit is 1 or not), the extracted symbol is identified as a single-byte symbol or a double-byte symbol. If the symbol is a single-byte symbol, take one byte of content; if the symbol is a double-byte symbol, take two bytes of content.

[0032] the determining module 2 is further configured to: when determining that the symbol is a single-byte symbol, determine whether it is a single-byte pure number according to the character encoding, or whether it is a single-byte separator; and when determining that the symbol is double-byte When the symbol is used, it is determined whether it is a double-byte symbol number based on the character encoding, or whether it is a double-byte separator.

[0033] In a specific implementation, if the symbol is a single-byte symbol, the determining module 2 determines whether it is a single-byte pure number "0-9" according to the content of the character encoding, or whether it is a single-byte separator; When it is a double-byte symbol, the decision module 2 determines whether it is a symbol number ("9" or the like, such as "9" is 0xA2, OxEl), or whether it is a double-byte delimiter according to the content of the character encoding.

[0034] In addition, the conversion module 3 is further configured to directly record the number if the result of the determination is a single-byte pure number; and to convert to a single-byte character if the result of the determination is a double-byte character, and Convert to a pure numeric number. In the specific implementation, if it is a single-byte pure number, it is directly recorded; if it is a connector, it acquires and continues processing to obtain the next symbol; if it is a double-byte character, it is converted into a corresponding single-byte character (due to this The class symbol encoding is continuous, as long as the value subtracted from the starting code is the number to be converted, such as 9, OxEl - 0xA8 =0x39, then the number "9" is encoded as 0x39); He, the current number extraction is over, check whether the number needs to be recorded, the length of the number, and so on.

[0035] Further, the apparatus may further include: an inspection record module (not shown) for performing inspection record on the pure digital number string, including whether it is a pure digital number, whether the length of the number meets the requirements, and whether Need to record, etc.

[0036] Embodiments of the apparatus embodying the present invention can identify a delimited number and a symbol number in a subject or content of an e-mail, and convert the mixed number into a pure numeric number string, which can reduce the difficulty of number extraction, and Reduce resource consumption; and facilitate the analysis of anti-spam modules in emails and the application of rules to quickly identify whether it is spam or not, which is convenient for users.

[0037] Those skilled in the art can understand that all or part of the various methods of the above embodiments can be completed by a program instructing related hardware, and the program can be stored in a computer readable storage medium, the storage medium. These may include: read only memory (ROM), random access memory (RAM), disk or optical disk, and the like.

[0038] In addition, the method and device for extracting the number in the email provided by the embodiment of the present invention are described in detail. The principles and implementation manners of the present invention are described in the following. The description is only for helping to understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in specific embodiments and application scopes. The contents of this specification are not to be construed as limiting the invention.

Claims

Rights request

A method for extracting a number in an email, characterized in that the method comprises:

Identifying a single symbol in the email and obtaining a recognition result;

The determination result is converted to obtain a pure numeric number string.

2. The method for extracting a number in an email according to claim 1, wherein the step of identifying a single symbol in the email and obtaining the recognition result comprises:

The symbol is identified as a single byte symbol or a double byte symbol based on the character encoding.

3. The method for extracting a number in an email according to claim 2, wherein the step of classifying the recognition result and obtaining the determination result comprises:

When it is determined that the symbol is a single-byte symbol, it is determined according to the character encoding whether it is a single-byte pure number, or whether it is a single-byte delimiter;

4. The method for extracting a number in an email according to claim 3, wherein the step of converting the determination result to obtain a pure numeric number string comprises:

The method for extracting a number in an email according to any one of claims 1 to 4, wherein the method further comprises: performing a verification record on the pure digital number string.

6. An apparatus for extracting numbers in an email, wherein the apparatus comprises:

a determining module, configured to perform classification determination on the recognition result obtained by the identification module, to obtain a determination result;

And a conversion module, configured to convert the determination result obtained by the determination module to obtain a pure numeric number string.

7. The apparatus for extracting numbers in an e-mail according to claim 6, wherein the identification module is configured to identify that the symbol is a single-byte symbol or a double-byte symbol according to a character encoding.

The apparatus for extracting numbers in an e-mail according to claim 7, wherein the determining module is further configured to: when determining that the symbol is a single-byte symbol, determine whether it is single-byte pure according to character encoding a number, or whether it is a single-byte delimiter; and for determining whether the symbol is a double-byte symbol number or a double-byte delimiter according to the character encoding when determining that the symbol is a double-byte symbol.

The apparatus for extracting numbers in an e-mail according to claim 8, wherein the conversion module is configured to directly record the number if the determination result is a single-byte pure number; When the result of the determination is a double-byte character, it is converted into a single-byte character and converted into a pure-digit number.

The apparatus for extracting numbers in an e-mail according to any one of claims 6 to 9, wherein the apparatus further comprises: an inspection recording module, configured to perform inspection recording on the pure digital number string.