KR20120139294A - Method and apparatus for managing mail using chunk - Google Patents

Abstract

PURPOSE: A mail management method using a chunk and a device thereof are provided to index an inherent string of the chunk, thereby reducing a chunk collection and the amount of index. CONSTITUTION: Mail is received(410). One or more chunks in the received mail are searched(420). It is checked whether or not one or more the chunks are in a chunk collection(430). A chunk registration step is performed for a chunk which is not existed in the chunk collection(440). A mail identifier is added for a chunk which is existed in the chunk collection(450). Indexing is performed for the chunk registered in the chunk collection(460). [Reference numerals] (410) E-mail reception; (420) Chunk search; (430) Chunk is existed within chunk collection?; (440) Chunk registration; (450) E-mail identifier addition; (460) Chunk indexing; (470) Mail search; (480) Reading; (AA) Start; (BB) End

Description

METHOD AND APPARATUS FOR MANAGING MAIL USING CHUNS {METHOD AND APPARATUS FOR MANAGING MAIL USING CHUNK}

The following embodiments are directed to a method and apparatus for managing e-mail.

A method and apparatus are disclosed for processing an action related to e-mails by using a chunk in an e-mail.

E-mail (hereinafter abbreviated as e-mail) refers to an electronic document exchanged between users through a computer communication network such as the Internet. Mail may also represent a system for sending and receiving such electronic documents.

An additional function of the mail is the reply (RE) and forward (FW) functions.

The reply is a reply to the sender of the original mail, in response to the original mail received by the recipient of the specific mail.

Delivery is to send the original mail itself received by the recipient of a specific mail to another party, or to add content to the original mail and send it to the other party.

When the user creates a reply mail (or forward mail) to the original mail received by the user, the mail client program of the user inserts the contents of the original mail into the reply mail (or forward mail). The content of the original mail is generally inserted at the end of the reply mail (or forwarded mail). Accordingly, the reply mail (or forward mail) may include the contents of the original mail.

Therefore, when users send and receive mail several times through a reply and forwarding on a particular subject, the recipient of the mail can check the contents of previous mails that have been coming and going between users through the contents inserted at the bottom of the mail.

By the above insertion, the reply mail or the forward mail gradually increases in size as the reply or forward is repeated. Also, by reply or forward, the same content (i.e., the content of the original mail) can be duplicated in several mails (i.e., the original mail and the reply mail (or forwarded mail)).

In particular, when a mail is sent to several recipients or several reference persons, several mails having the same size and having the same contents can be generated by replying or forwarding.

The increase in the size and number of mails may put an excessive load on the mail system.

One embodiment of the present invention may provide an apparatus and method for searching for chunks included in an e-mail and indexing a unique string of the chunks.

An embodiment of the present invention may provide an apparatus and method for searching and providing an e-mail including a search word based on the contents of an indexed chunk.

According to one aspect of the present invention, there is provided a method for retrieving one or more chunks in an e-mail, wherein the one or more chunks are inclusive, registering a chunk of the one or more chunks that is not in the chunk collection and the chunk collection; A method of processing an email is provided, comprising associating an identifier of an email with each of the one or more chunks in the chunk collection.

Retrieving one or more chunks in the e-mail may retrieve the one or more chunks by identifying content for identifying a previous e-mail appended to the e-mail when the e-mail is returned or forwarded. have.

The n th chunk of the one or more chunks may include an n-1 th chunk, and n may be the number of the one or more chunks.

Registering a chunk of the one or more chunks that is not in the chunk collection to the chunk collection and associating an identifier of the e-mail with each of the one or more chunks in the chunk collection, in descending order or chunk size; Can be performed for each of the one or more chunks in ascending order of magnitude.

The chunk collection may include a string of chunks, an identifier of the chunk, identifiers of one or more e-mails associated with the chunk, and a unique string of the chunk.

The unique string of the chunk may be content added in the chunk compared to the content of the lower chunk among the contents of the chunk.

The e-mail processing method may further include indexing content additionally included in the chunk registered in the chunk collection.

The e-mail processing method may further include providing e-mails associated with the registered chunk as a search result for a search word based on the indexed contents.

The content of the registered chunk may further include the search word.

According to another aspect of the present invention, a chunk collection for storing one or more chunks and data associated with the chunks, a chunk searching unit for retrieving one or more chunks in an e-mail, wherein the one or more chunks are in a related relationship; and E-mail processing including a chunk register that registers a chunk not in the chunk collection of the one or more chunks to the chunk collection and associates an identifier of the e-mail with each of the one or more chunks in the chunk collection. An apparatus is provided.

An apparatus and method are provided for retrieving chunks contained in an e-mail.

By indexing the unique string that the chunk has, the amount of chunk collection and index is reduced.

An apparatus and method are provided for retrieving and providing an email containing a search term based on the contents of an indexed chunk.

By indexing, the portion of the e-mail provided as a result of the search corresponding to the search word can be highlighted.

1 illustrates a chunk of a mail 100 according to an embodiment of the present invention.
2 illustrates generation of a chunk according to transmission and reply of an e-mail according to an embodiment of the present invention.
3 illustrates a chunk collection 300 according to an embodiment of the present invention.
4 is a flowchart illustrating a mail processing method according to an embodiment of the present invention.
5 is a structural diagram of an e-mail processing apparatus 500 according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

1 illustrates a chunk of a mail 100 according to an embodiment of the present invention.

The mail 100 may include bibliographic details such as the subject 110, sender (hereinafter, sender), and recipient (hereinafter, recipient) 120. In addition, the mail 100 may include a body 130.

The subject 110 of the mail 100 is "RE: RE: chunk". "mail_tester1" having a mail address of "mail_tester1@naver.com" is the sender of the mail 100. In addition, "mail_tester2" having a mail address of "mail_tester2@naver.com" is the recipient of the mail 100.

The content of body 130 indicates that mails come and go several times between sender and receiver.

First, at 18:04:48 on March 23, 2011, "mail_tester2" sent "mail_tester1" a first mail having a title of "chunk" and a body of "first content".

Next, in response to the first mail, on March 23, 2011, 18:06:02, "mail_tester1" has the subject "RE: chunk" for "mail_tester2" and the body "added # 1 Sent a second mail.

The second mail is created by "mail_tester1" as a reply mail of the first mail and transmitted.

When the second mail is created, the content of the first mail, the bibliographical note of the first mail (ie, the sender of the first email, the recipient of the first email, the CC of the first email, the CC) are sent Date and time of the first e-mail) and a string ("----- Original Message -----") indicating that the content of the first e-mail is added to the second e-mail from the bottom up.

Thereafter, the third mail and the mail 100 were sequentially transmitted between "mail_tester1" and "mail_tester2" as reply mails.

The body 130 may include chunks. A chunk is a set of strings that make up a mail message. In other words, a chunk is a string of entire messages.

The chunk may be a string of content in which one or more of a linefeed character and a space character are removed from the content of the mail. This removal may be performed primarily for the hash to be described later. Therefore, the chunk may be one in which linefeed characters and space characters are removed from the contents of the mail.

The first chunk 140 is the entire body 130. The first chunk 140 may be a string of the entire mail 100.

The second chunk 150 is the content of the third mail previously sent to the mail 100. That is, the third mail and the mail 100 may have a relationship between the original mail and the reply mail. That is, the mail 100 may be generated as the third mail is returned (or forwarded).

The second chunk 150 may be a string of the entire third mail.

The third chunk 160 is the content of the second mail sent before the third mail.

The fourth chunk 170 is the content of the first mail previously transmitted of the second mail.

The first chunk 140 includes a second chunk 150. Also, as shown, the four chunks 140, 150, 160, and 170 have a containment relationship to each other.

The unique string 180 may be the content of the mail 100 created by the sender (ie, "mail_tester1").

For example, the unique string 180 may be content added in the first chunk 140 compared to the second chunk 150 among the contents of the first chunk 140.

Alternatively, the unique string 180 may be content except for bibliographic matters of previously transmitted mail, among contents added in the first chunk 140 compared to the second chunk 140. That is, the unique string 180 may be content excluding surge items of the second chunk 140 and the third mail from the first chunk 140.

The chunks 140, 150, 160, and 170 may be distinguished based on a particular sort string.

The division string may be content for distinguishing a previously transmitted mail attached to the mail 100 when the mail 100 is created for reply or delivery.

That is, the division string may mean the string "----- Original Message -----" in the body 130 or may include the string "----- Original Message -----". In addition, the delimiter string is a string that represents the citation of the previously sent mail (eg, "From: ...", "To: ...", "Cc: ...", "Sent: ..." And "Subject: ...").

2 illustrates generation of a chunk according to transmission and reply of an e-mail according to an embodiment of the present invention.

Users 210 send and receive mail several times.

Here, the symbols "A" and "B" denote subjects of mail transmission and reception. The symbol shown to the left of the arrow indicates the sender, and the symbol shown to the right of the arrow indicates the receiver.

Mail transmitted and received between the users 210 may be represented by the chunk 220 that strings the entire mail. That is, the users 210 send and receive chunks.

The chunks 220 transmitted and received between the users 210 are displayed from the bottom up according to the time sequence generated and transmitted. That is, the most recently sent chunk is shown at the top.

If the mail corresponding to the lower chunk is the original mail, the mail corresponding to the upper chunk may be considered to be a reply mail or a forward mail to the original mail.

As described above, when a mail is created for reply or delivery, the contents of the original mail can be included in the reply mail or forwarded mail to be created. Thus, the mail generated by replying or forwarding may include the contents of the original mail. That is, in FIG. 2, a later generated chunk (ie, a higher chunk) may include the contents of a previously generated chunk (ie, a lower chunk) (ie, a string of chunks).

For example, the fourth chunk of the top first chunk to the fourth row contains the string "c". All chunks contain "a", the contents of the first chunk created.

In this case, as the reply or transfer is repeated, the size of the chunk increases, and most of the contents of the chunk overlap with the contents of the lower chunk (ie, the previously transmitted chunk). That is, the first chunk at the top has "fedcba" as its contents, but "edcba" is included in the second chunk below. That is, "edcba" is duplicated in the contents of the first chunk.

Each chunk has a unique string 230.

The unique string 230 is a string not included in the lower chunk. The unique string may be contents (or strings of the above contents) created directly by the sender of the mail when the mail corresponding to the chunk is created.

3 illustrates a chunk collection 300 according to an embodiment of the present invention.

The chunk collection 300 is a data structure for processing chunks in the system. The chunk collection 300 may register (or store) one or more chunks used in the system and data associated with the chunks.

The columns of the chunk collection 300 each correspond to one registered chunk.

The rows of the chunk collection 300 may include a chunk string 310, a chunk identifier 320, a mail identifier list 330, and a unique string 340.

That is, the chunk collection 300 may include a chunk string 310, a chunk identifier 320, a mail identifier list 330, and a unique string 340 for each of one or more registered chunks.

The chunk string 310 represents the content of the registered chunk.

For example, the content of the first chunk (ie, the string of the first chunk) is "dcba".

A hashed value (not shown) of the chunk string 310 may be stored in association with the chunk.

If the hashed value of the chunk string 310 is stored, when searching for a particular chunk of the chunks registered in the chunk collection 300 using the search term, the hashed value of the search term and the hashed value of the chunk strings 310. The specific chunks above can be retrieved by comparing them. Thus, the search efficiency can be improved.

The chunk identifier 320 represents an identifier of a registered chunk.

Chunk identifier 320 is used to identify registered chunks in the system.

In general, one chunk identifier 320 is assigned to a registered chunk. For example, two or more chunk identifiers 320 may be assigned to a registered chunk if the mails of different users have chunks of the same content.

The mail identifier list 330 indicates identifiers of mails belonging to a registered chunk among the mails in the system.

That is, the mail identifier list 330 may indicate identifiers of mails including registered chunks among the mails in the system. The mail identifier list 330 may be identifiers of one or more mails associated with the registered chunk.

For example, the chunk string 310 of a chunk whose chunk identifier 320 is "1" is "a", and mails whose identifiers are "A", "B", "C" or "D", respectively, are the chunk strings described above. 310, "a".

For example, the chunk string 310 of the chunk with the chunk identifier 320 "3" is "cba" and the mails with the identifier "C" or "D" respectively include the chunk string 310 "cba". do.

The unique string 340 may be the unique string 180 described above with reference to FIG. 1.

For example, the unique string 340 may be content added from the registered chunk as compared to the content of the lower chunk of the registered chunk among the contents of the registered chunk. That is, the unique string 340 may be a string that does not include a lower chunk of the registered chunk among the strings of the registered chunk.

For example, the unique string 340 may be unique content of the registered chunk except the lower chunk among the contents of the registered chunk. That is, the unique string 340 may be the actual content of the mail corresponding to the registered chunk (that is, the content actually created except for the contents and the bibliographic details of the original mail).

If a particular mail contains a particular chunk, the particular mail should be associated with that particular chunk in the system.

Mail may be further associated with the chunk by operations 1) and 2) below.

1) If there is already the same chunk as the chunk to be added in the chunk collection 300, the identifier of the mail is added to the mail identifier list 330 of the same chunk already existing.

2) If there is no chunk identical to the chunk to be added in the chunk collection 300, the chunk is first registered in the mail identifier list 330. That is, an entry including the chunk string 310 of the chunk (the hash value of the chunk string 310 if necessary), the chunk identifier 320 and the unique string 340 is added to the chunk collection 300. Next, the mail identifier is added to the mail identifier list 330 of the specific chunk registered.

Registered chunks with the same chunk identifier 320 may be grouped. In addition, registered chunks with different chunk identifiers 320 may be treated as separate mail threading.

4 is a flowchart illustrating a mail processing method according to an embodiment of the present invention.

In the mail receiving step 410, a mail is received.

In chunk retrieval step 420, one or more chunks in the received mail are retrieved.

One or more chunks may form a hierarchical relationship. That is, as described above, one chunk may include another chunk (ie, the contents of the chunk).

For example, when the number of chunks searched is n (n is a natural number greater than or equal to zero), the nth chunk may include an n−1 chunk in ascending order of the size of the chunk.

In the chunk retrieval step 420, the above chunks may be retrieved by identifying the content for identifying the previous e-mail attached to the e-mail when the e-mail is returned or forwarded.

Here, the contents for distinguishing the previous e-mail may be the division string described above with reference to FIG. 1.

In chunk verification step 430, it is checked whether each of the one or more chunks is in the chunk collection 300.

For chunks that are not in the chunk collection 300, the chunk registration step 440 is performed, and for the chunks that are in the chunk collection 300, the mail identifier addition step 450 is performed.

In the chunk registration step 440, a chunk that is not in the chunk collection 300 of one or more chunks is registered in the chunk collection 300.

In the mail identifier adding step 450, an identifier of the received mail is associated with each of the one or more chunks in the chunk collection 300. That is, the identifier of the received mail is added to the mail identifier list 330 of each of the one or more chunks in the chunk collection 300.

Steps 440 and 450 described above may be performed for each of the one or more chunks in descending order of the size of the chunk (ie, from the large chunk to the small chunk). In this case, the chunks included in the received mail are utilized in order from large chunks to small chunks.

Alternatively, the steps 440 and 450 described above may be performed for each of the one or more chunks in ascending order of the size of the chunk (ie, from the small sized chunk to the large sized chunk).

The chunk collection 300 is updated for the mail received by the steps 410-450 described above. That is, one or more chunks of the received mail are searched, in turn whether the searched chunks are in the chunk collection 300, and the unsearched chunks are added to the chunk collection 300. (Generally, large From chunk to small chunk)

In the chunk indexing step 460, indexing is performed on the chunks registered in the chunk collection 300.

The chunk newly registered in the chunk collection 300 is a chunk that did not exist in the existing chunk collection 300. Thus, indexing for the chunk collection 300 above needs to be processed.

Sub-chunks of newly registered chunks are already registered chunks. In this case, indexing for the lower chunk does not need to be performed again. In addition, if the lower chunk of the newly registered chunk is also a newly registered chunk, the indexing of the contents included in the lower chunk (that is, the string of the lower chunk) is performed separately in the indexing of the lower chunk.

Therefore, indexing of the newly registered chunk may be performed without excluding contents included in the lower chunk.

That is, in the chunk indexing step 460, only the unique string 340, which is newly included in the newly registered chunk, may be indexed.

Due to the indexing using the unique string 340 as described above, the total amount of the chunk collection 300 may be reduced, and the amount of content to be indexed may be reduced.

Mail search step 470 represents providing mail search results by using the indexed content.

A user uses a search term to search for e-mails that match the search term.

In mail search step 470, e-mails associated with registered chunks based on the indexed content are provided as search results for the search term.

Here, the content that the registered chunk additionally includes a search word. That is, the unique string 340 of the registered chunk includes a search word.

Thus, the index generated by indexing the unique string 340 in the chunk indexing step 460 includes the search term.

Thus, by searching the indexed contents, it may be determined whether the registered chunk includes a search word. Thus, it can be confirmed that the e-mails associated with the registered chunk include the search term, and the associated e-mails containing the search stream can be identified through the mail identifier list 330 in the chunk collection 300.

Through indexing, e-mails associated with registered chunks may be highlighted as part of the search term and provided as a search result.

Herein, the provision includes a method of displaying, printing and transmitting the mail data (i.e., contents).

For example, when a user clicks a list of mails provided as a search result and opens the mail, a portion corresponding to a search word may be highlighted.

In addition, based on the last mail (that is, the mail which contains the most content, the most recently sent and received), mails having the same chunk identifier 320 as the last mail may be automatically classified and provided.

For example, one or more mails including a search word may be provided to the user through a tree structure according to the inclusion relationship of the chunk based on the final mail. In this case, a previously transmitted mail (ie, original mail) may be a parent node of the tree, and a message generated and transmitted (ie, a reply mail or a reply message) by replying or forwarding the previously transmitted mail. Delivered mail) may be a child node of the parent node.

In the read processing step 480, when a user reads a specific mail, all of the mails related to the specific mail are read.

In read processing step 480, mails associated with a particular mail read by the user are read processed.

For example, when a user reads a particular mail, previous mails of that particular mail can be identified by using the chunk collection 300.

That is, when one or more chunks included in a specific mail are searched, mails corresponding to each of the searched one or more chunks may be searched using the mail identifier list 330 of the chunk collection 300.

The content of a particular mail read by the user includes the content of the retrieved mails. Thus, among the retrieved mails, mails having the same recipient may be regarded as read together by the user reading the specific mail.

5 is a structural diagram of an e-mail processing apparatus 500 according to an embodiment of the present invention.

The e-mail processing apparatus 500 may include a transceiver 510, a chunk searcher 520, a chunk register 530, a chunk processor 540, and a chunk collection 550.

The transceiver 510 may perform step 410 described above.

For example, the transceiver 510 may receive a mail.

The chunk searcher 520 may perform step 420 described above.

For example, the chunk search unit 420 may search for one or more chunks in the received mail.

The chunk search unit 420 may search for one or more chunks by identifying the content for identifying the previous mail, which is attached to the mail when the mail is returned or forwarded.

One or more chunks may be inclusive. That is, the n th chunk of the one or more chunks may include an n−1 th chunk. Where n is the number of one or more chunks.

The chunk register 530 may perform the above-described steps 430, 440, and 450.

For example, the chunk register 530 may register the chunk that is not in the chunk collection 550 among the one or more chunks to the chunk collection 550.

In addition, the chunk register 530 may associate an identifier of the received mail with each of the one or more chunks in the chunk collection 300.

The chunk register 530 may register a chunk not included in the chunk collection 550 among the one or more chunks in the chunk collection 550 for each of the one or more chunks in descending order of the size of the chunk, and register the identifier of the received mail. It can be associated with each of one or more chunks in the chunk collection 550.

The chunk register 530 may register a chunk not included in the chunk collection 550 among the one or more chunks in the chunk collection 550 for each of the one or more chunks in ascending order of the size of the chunk, and register the identifier of the received mail. It can be associated with each of one or more chunks in the chunk collection 550.

The chunk processor 540 may perform the above-described steps 460, 470, and 480.

For example, the chunk processor 540 may index the content of the chunk registered in the chunk collection 550.

The chunk processor 540 may provide mails related to the registered chunks as a search result for the search word based on the indexed contents. At this time, the content (that is, the unique string 340 of the registered chunk) that the registered chunk additionally includes a search word.

The chunk processor 540 may highlight the portion corresponding to the search word and provide e-mails associated with the registered chunk as a search result.

In addition, the chunk processor 540 may automatically classify and provide mails having the same chunk identifier 320 as the final mail, based on the final mail.

The chunk processor 540 may provide one or more mails including a search word to the user through a tree structure according to the inclusion relationship of the chunks based on the final mail.

In addition, the chunk processor 540 may read-process the mails associated with the specific mail read by the user. That is, when the user reads a specific mail, the chunk processor 540 may identify previous mails of the specific mail by using the chunk collection 550, and may process the identified previous mails as read by the user.

The chunk collection 550 may refer to the above-described chunk collection 300 and may refer to a database for storing and managing the above-described chunk collection 300.

Technical contents according to an embodiment of the present invention described above with reference to FIGS. 1 to 4 may be applied to the present embodiment as it is. Therefore, more detailed description will be omitted below.

The functions of the components 520, 530, and 540 may be performed by a single controller (not shown). In this case, the controller may represent a single or multi chip, a processor, or a core. Each of the components 520, 530, and 540 may represent a function, a library, a service, a process, a thread, or a module performed by the controller. have.

Method according to an embodiment of the present invention is implemented in the form of program instructions that can be executed by various computer means may be recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

500: chunk processing unit
520: chunk search unit
530: Chunk Register
540: chunk processing unit
550: Chunk Collection

Claims (17)

Retrieving one or more chunks in an email, wherein the one or more chunks are in a containment relationship;
Registering a chunk of the one or more chunks that is not in the chunk collection to the chunk collection; And
Associating an identifier of the email with each of the one or more chunks in the chunk collection
E-mail processing method comprising a. The method of claim 1,
Retrieving one or more chunks in the email,
And retrieving the one or more chunks by identifying content for identifying a previous e-mail attached to the e-mail when an e-mail is returned or forwarded. The method of claim 1,
Wherein the nth chunk of the one or more chunks comprises an n-1 chunk, and n is the number of the one or more chunks. The method of claim 1,
Wherein the registering and associating step are performed for each of the one or more chunks in descending or ascending order of the size of the chunk. The method of claim 1,
The chunk collection comprises a string of chunks, an identifier of the chunk, identifiers of one or more e-mails associated with the chunk, and a unique string of the chunk,
And the unique string of the chunks is added from the chunk relative to the contents of the lower chunks of the chunk. The method of claim 1,
Indexing content further included in the chunk registered in the chunk collection
Further comprising, the email processing method. The method according to claim 6,
Providing e-mails associated with the registered chunk as a search result for a search term based on the indexed content
Further comprising, wherein the registered chunk further has the search word, the e-mail processing method. The method of claim 7, wherein
The e-mails associated with the registered chunks are highlighted as part of the search term and provided as a search result. A computer-readable recording medium containing a program for performing the e-mail processing method of any one of claims 1 to 8. A chunk collection that stores one or more chunks and data associated with the chunks;
A chunk searcher for retrieving one or more chunks in an email, wherein the one or more chunks are in a containment relationship; And
A chunk register that registers a chunk not in the chunk collection of the one or more chunks to the chunk collection and associates an identifier of the e-mail with each of the one or more chunks in the chunk collection
E-mail processing device comprising a. The method of claim 10,
And the chunk retrieving unit retrieves the one or more chunks by identifying a content for identifying a previous e-mail attached to the e-mail when the e-mail is returned or forwarded. The method of claim 10,
Wherein the nth chunk of the one or more chunks comprises an n-1st chunk, and n is the number of the one or more chunks. The method of claim 10,
The chunk register registers a chunk not in the chunk collection of the one or more chunks to the chunk collection for each of the one or more chunks in descending or ascending order of the size of the chunk, and registers an identifier of the e-mail in the chunk collection. Associated with each of the one or more chunks. The method of claim 10,
The chunk collection comprises a string of chunks, an identifier of the chunk, identifiers of one or more e-mails associated with the chunk, and a unique string of the chunk,
And the unique string of the chunk is content added in the chunk relative to the content of the lower chunk of the content of the chunk. The method of claim 10,
Chunk processing unit for further indexing the content of the chunk registered in the chunk collection
Further comprising, the e-mail processing device. 16. The method of claim 15,
The chunk processing unit may provide e-mails associated with the registered chunk based on the indexed content as a search result for the search word, and the content of the registered chunk further includes the search word. Processing unit. 17. The method of claim 16,
And the chunk processing unit highlights a portion corresponding to the search word and provides e-mails associated with the registered chunk as a search result.

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