KR101670932B1 - System and method for aggregating view of contents using filter logic - Google Patents

Abstract

A system and method for aggregating content views using filter logic is disclosed. A computer-implemented aggregation method of an aggregation system, comprising: generating an eigenvalue for identifying a request for the content in response to a request for the user's content; providing the generated eigenvalue; The method comprising the steps of: receiving the eigenvalues transmitted according to an inquiry about contents; searching the database for eigenvalues and aggregating the inquiry about the contents into a valid exposure or view if the eigenvalues do not exist in the database; And storing the eigenvalue in the database when the query on the content is aggregated into a valid exposure or view.

Description

[0001] SYSTEM AND METHOD FOR AGGREGATING VIEW OF CONTENTS USING FILTER LOGIC [0002]

Embodiments of the present invention are directed to systems and methods for aggregating content views using filter logic.

There is a prior art for counting the impression (IMP) of the content being exposed. For example, Korean Patent Laid-Open No. 10-2011-0019985 discloses a technique of utilizing user identification information of a user who selects content in order to grasp the degree of exposure of contents inserted into a web site.

However, there is a case in which the exposure of the content does not lead directly to the view of the content. For example, in the case of moving picture contents, the exposure of the moving picture contents does not lead directly to the view of the user. The user can stop the playback of the video as soon as the user plays the video and judging the exposure of the content as the user's video view may interfere with counting the accurate content view.

Also, when the content is included in the web page and exposed, the content can be placed at the position of the web page that is not exposed on the screen. In this case, the user's request and the content exposure do not match. In this case, when the user is exposed to the content through the operation such as scrolling, it is determined that the content is exposed. Therefore, there is a problem that it is difficult to determine the content request of the user as the exposure of the content.

In addition, judging a content view of a user when the same content is repeatedly exposed to the same user or when the content is exposed through an invalid path may also interfere with counting accurate content views.

Thus, efficient filter logic is required for aggregating accurate content views.

Provides an aggregation system and method that enables more accurate aggregation of content views using efficient filter logic.

A computer-implemented aggregation method of an aggregation system, comprising: generating an eigenvalue for identifying a request for the content in response to a request for the user's content; Providing the generated eigenvalue; Receiving the eigenvalues transmitted according to an inquiry about the contents of the user; Retrieving the eigenvalue from the database and aggregating the query for the content into a valid exposure or view if the eigenvalue does not exist in the database; And storing the eigenvalue in the database when the query for the content is aggregated into a valid exposure or view.

A computer-implemented aggregation system comprising: an eigenvalue generator for generating an eigenvalue for identifying a request for a content in response to a request for a user's content; An eigenvalue generator for providing the generated eigenvalue; An eigenvalue receiver for receiving the eigenvalues transmitted according to an inquiry about the contents of the user; An aggregation unit for retrieving the eigenvalues from the database and aggregating an inquiry about the contents into valid exposures or views when the eigenvalues do not exist in the database; And a storage unit for storing the eigenvalue in the database when an inquiry about the content is aggregated into a valid exposure or view.

It is possible to aggregate the content view more accurately by using the effective filter logic and drastically reduce the number of times of writing to the unique value for identifying the request of the content.

1 is a diagram showing an example of an aggregation environment of a content view in an embodiment of the present invention.
2 is a diagram illustrating an example of a method for determining whether or not a view is valid according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating an example of a method for preventing duplicate aggregation in an embodiment of the present invention.
4 is a block diagram for explaining an internal configuration of an aggregation system according to an embodiment of the present invention.
5 is a flow chart illustrating an aggregation method in an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing an example of an aggregation environment of a content view in an embodiment of the present invention. Figure 1 shows an aggregation system 100, a transmission system 110, a user 120 and content 130.

The aggregation system 100 may be a server device that aggregates information related to the content 130 (e.g., the number of times of exposure, clicks, views, etc.), or server devices associated with each other.

The transmission system 110 may be a server device that transmits the content 130 to the user 120 at the request of the user 120 or server devices connected to each other. The aggregation system 100 may aggregate information related to the content 130 using information provided by the transmission system 110. [ The aggregation system 100 may be implemented to be included in the transmission system 110 or may be implemented to communicate with the transmission system 110 over a network in a separate system from the transmission system 110. [

 The user 120 is a terminal device of the user 120. The user 120 accesses the transmission system 110 through the network to request the content 130 and receives the content 130 to be transmitted, . ≪ / RTI >

When the user 120 requests the content 130 from the transmission system 110, the transmission system 110 can send the requested content 130 to the user 120. [ At this time, information on the exposure, click, view, etc. of the transmitted content 130 may be transmitted to the transmission system 110. For example, the web page including the content 130 may include code for controlling the terminal device of the user 120 to transmit information about the exposure, click, view, etc. to the transmission system 110.

The transmission system 110 may pass information (such as received information as it is) to the aggregation system 100, and the aggregation system 100 may utilize the delivered information Various information about the content 130 can be aggregated. For example, the aggregation system 100 can determine whether the view for the content 130 is valid or not, and aggregate only valid views.

2 is a diagram illustrating an example of a method for determining whether or not a view is valid according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, when content 130 is requested from a user 120, the transmission system 110 may notify the aggregation system 100 that the content 130 has been requested.

The eigenvalue generation process 210 may illustrate the process of the aggregation system 100 generating an eigenvalue for identifying a request for the content 130. For example, different requests for the same content 130 may be identified through eigenvalues. The generated eigenvalues may be recorded in the database 250 included in the aggregation system 100 through a 'write' process and may also be transmitted to the transmission system 110. The transmission system 110 may communicate the content 130 with a unique value to the user 120. For example, a URL for content 130 in transmission system 110 may be generated to include a unique value, and such URL may be included in a web page for exposing content 130.

The exposure process 220 may indicate a process in which a web page including the content 130 is exposed to the user. At this time, it is assumed that the content 130 in the exposure process 220 has not been inquired by the user yet. The fact that the content 130 is not displayed means that the content 130 placed at the bottom of the web page has not been exposed through the display of the terminal device yet or the content 130, It may mean that the content 130 has not yet been substantially provided to the user 120,

The inquiry process 230 may indicate a process in which the content 130 is exposed to the user 120 and is substantially provided. The content 130 is actually exposed through the display of the terminal device in response to an event such as scrolling of the user 120 or the content 130 is reproduced according to the selection of the user 120 and the reproduction condition is satisfied It can mean. For example, the playback condition may be variously set as an example in which the content 130 is played back over a predetermined time or the entire content is played back.

If the content 130 is substantially provided to the user 120 through the above-described inquiry process 230, the user 120 can transmit the received unique value together with the content 130 to the transmission system 110 , The transmission system 110 may communicate the received eigenvalues to the aggregation system 100. [

The eigenvalue reception process 240 may indicate the process by which the aggregation system 100 receives the eigenvalues delivered via the transmission system 110. At this time, the aggregation system 100 can retrieve the eigenvalues received from the database 250. If the eigenvalues received in the database 250 are retrieved, the aggregation system 100 may determine that the generated view is valid. If the received eigenvalues are not retrieved, the generated view can be identified as invalid.

Meanwhile, the validity of the view can be grasped by using the eigenvalue through the method of FIG. 2, and the overlapped view in the same session can be grasped. However, when it is assumed that the number of impressions versus the number of inquiries is very large (for example, 20 inquiries per 1,000 impressions), the aggregation system 100 generates and delivers a unique value for each user's request, 250). ≪ / RTI > Further, it is difficult to grasp the time gap between the exposure process 220 and the inquiry process 230.

FIG. 3 is a diagram showing another example of a method for preventing duplicate aggregation in an embodiment of the present invention.

Referring to Figures 1 and 3, when content 130 is requested from a user 120, the transmission system 110 may notify the aggregation system 100 that the content 130 has been requested.

The eigenvalue generation process 310 may illustrate the process by which the aggregation system 100 generates a unique value for identifying a request for the content 130. At this time, the aggregation system 100 can confirm the server time when generating the eigenvalue.

The encryption process 320 may represent a process of encrypting the eigenvalue and the server time. The encrypted information may be communicated to the user 120 along with the content 130 via the transmission system 110.

The exposure process 330 may indicate a process in which a web page including the content 130 is exposed to a user. Similar to what has already been described, it is assumed that in the exposure process 330 the content 130 has not yet been queried by the user. The fact that the content 130 is not displayed means that the content 130 placed at the bottom of the web page has not been exposed through the display of the terminal device yet or the content 130, It may mean that the content 130 has not yet been substantially provided to the user 120,

The inquiry process 340 may indicate a process in which the content 130 is exposed to the user 120 and is substantially provided. The content 130 is actually exposed through the display of the terminal device in response to an event such as scrolling of the user 120 or the content 130 is reproduced according to the selection of the user 120 and the reproduction condition is satisfied It can mean. For example, the playback condition may be variously set as an example in which the content 130 is played back over a predetermined time or the entire content is played back.

If the content 130 is substantially provided to the user 120 through the above-described inquiry process 340, the user 120 can transmit the received unique value together with the content 130 to the transmission system 110 , The transmission system 110 may communicate the received eigenvalues to the aggregation system 100. [

The decryption process 350 may represent a process in which the aggregation system 100 decrypts the encrypted information to obtain the eigenvalue and the server time. Encryption and decryption of information is intended to prevent malicious users with abusing purposes from utilizing unique values or server time.

The time validation process 360 may include comparing the decoded server time with the current server time to verify the validity of the view generated after a predetermined time. For example, it is possible to set time validity only to the view received within one hour of the occurrence of the impression (IMP). Views received after one hour may be invalidated. This time validity can be exploited to provide accurate aggregation information to the provider of the content 130. For example, if a new view corresponding to 1000 exposures is generated after informing the provider of the content 130 that 20 views have been generated in 1000 exposures, such a view may cause confusion in accurate aggregation. Therefore, time effectiveness can be exploited to prevent such confusion.

The eigenvalue checking process 370 can be omitted because it is meaningless to validate the eigenvalue for an invalid view. If the time validity is confirmed, the eigenvalue confirmation process 370 may be performed as follows.

The eigenvalue checking process 370 may be a process of searching the database 380 for the decoded eigenvalue. At this point, the aggregation system 100 may determine that the view is valid if the eigenvalue is not retrieved from the database 380, and may determine that the view is invalid if the eigenvalue is retrieved from the database 380. 2, since the eigenvalues are generated in the database 380 only when the eigenvalues are generated and the views are determined not to be stored in the database 380, the access to the database 380 The number of times can be drastically reduced. For example, suppose that there are 1,000 exposures, 20 views, and 15 valid views. In the method of FIG. 2, a total of 1,035 times, such as 1000 times to generate a unique value and 15 to count a valid view, Writing occurs. On the other hand, in the method of FIG. 3, only 15 writes are generated because unique values are stored only for valid views and counting is possible at the same time.

As the number of impressions increases, the difference in the number of writes may become larger.

In a more specific embodiment, the aggregation system 100 may use a valid view to avoid being charged for duplication when replaying the view URL multiple times in a merchandise that uses CPV (cost per view) that represents cost per view Can be determined and aggregated. Embodiments of the present invention may be utilized in a system that processes valid advertisements separately from requests for advertisements as well as products that use CPVs (systems that are not substantially exposed to the user, all of which are requested). Therefore, traffic in the mobile environment and traffic in the PC environment should be considered together.

The aggregation system 100 can generate an advertisement view URL by encrypting the unique value and the server time in the request (or call) process of the content 130, and transmit the generated advertisement view URL to the user 120).

Decodes the received unique value and the server time according to the user's inquiry (in this case, the occurrence of the view, and the CPM (cost per mille) If thereafter, the aggregation system 100 may invalidate the query.

In addition, the aggregation system 100 may calculate a hash value by applying a hash function to the decrypted eigenvalue, and generate an abuse key using the hash value. For example, the aggregation system 100 may generate a remainder that divides the hash value by 100 as an abuse key. Since the eigenvalues can be made larger than the maximum number of Redis (Remote Dictionary System) keys (31 of 2) when the eigenvalues are made as they are, the aggregation system 100 uses the eigenvalues Can be converted to a number using a hash function, and a modulo operation can be performed with an appropriate number of values (for example, 100).

In addition, the aggregation system 100 may determine the validity of the view (or exposure) using a log format that will be described later, a distinction between the invocation of the content and the exposure, and the like.

The filter logic for the content can only systematically determine the validity of the view, as opposed to being obsessed (for a particular user to arbitrarily control content with malicious intent). Since the pattern data of the observer is required for the observer, the logic for preventing the observer can be separately developed and utilized.

Content such as advertisements can be classified into CPV (Cost Per View), Cost Per Mile (CPM), Cost Per Time (CPT) And can be exposed through a web page or other video service through a variety of products such as a product used.

In this case, the number of exposures and the number of views can be utilized as an application index for calculating the cost of providing the contents. Clicks on video ads, etc., as described above, may not be a core indicator and may be excluded from the applicable indicator because they may stop the video from playing immediately after the user clicks the play button.

In the embodiments of the present invention, the application method applied to compile the view of such content may include at least one of the following four logic elements.

1. Preventing duplicate aggregation (or billing) logic - Filter logic for preventing duplicate aggregation has already been described in more detail in FIG. 2 and FIG. In FIGS. 2 and 3, it has been described that duplicate billing can be prevented by invalidating the aggregation of a view for repeated calls in the same session by using eigenvalues for identifying a request for contents. In addition, in FIG. 3, it has been described that malicious calls of malicious users can be prevented by encrypting eigenvalues.

2. Occurrence of Time Spacing Between Exposure and View Processing Logic - In FIG. 3, an example is shown in which server time is transmitted and received together with the eigenvalue, thereby recognizing only valid views from the occurrence of the exposure to a view coming within a certain period of time. At this time, the required period may be set in advance in consideration of the disappearance rate of the view. If the required period is too short, the likelihood that the normal view will be lost is increased, and if the required period is too long, the meaning of processing the time spacing is discolored so that the required period can be preset according to the disappearance rate of the view. For example, in a CPV-based product, filter logic may be utilized to handle the time-gap between exposure and view.

* 3. Occurrence of Time Spacing Between Calling and Exposure of Content Processing Logic - Even if users call content, there are cases where content is not directly exposed to the user. As described above, when the content is exposed at the lower end of the web page and is not yet reproduced on the display of the terminal device, or when the content is called due to a problem on the network, to be. For example, time blanks may be generated for banner advertisements exposed at the bottom of a web page or for content that is not displayed due to network problems. Therefore, if an exposure is counted after a predetermined time since the call of the content, the exposure may be treated as an invalid exposure. For example, in a product that uses CPM, filter logic may be utilized to handle the occurrence of time spans between calls and exposures.

4. Logic to handle invalid log format - Non-standard log format cases may be preset, and log format data according to this case may be invalidated and not provided as an indicator to the content provider at the time of the report . For example, a non-normal log format may be set as shown in Table 1 below.

division Invalid judgment Common index 1. If the date information is not present or is not a preset position 2. If domain information is not preset domain information 3. If the creative number, creative number, creative - ad association value is missing, is greater than a predetermined number of bytes, or is not a positive integer, the video revenue share parameter does not exist. 4. If you have a video revenue share parameter but the length is less than the preset value If VIEW If the bid metric is aggregated without an impression rank, quality index, or bid.

Table 1 is only an example, and the cases for confirming the non-normal log format can be set in various ways.

FIG. 4 is a block diagram for explaining an internal configuration of an aggregation system according to an embodiment of the present invention, and FIG. 5 is a flowchart illustrating an aggregation method in an embodiment of the present invention.

The aggregation system 400 according to the present embodiment may correspond to the aggregation system 100 described above, and may be implemented by one computer device or a plurality of computer devices. 4, the aggregation system 400 includes an eigenvalue generator 410, an eigenvalue generator 420, an eigenvalue receiver 430, an aggregation unit 440, and a storage unit 450 . At this time, the eigenvalue generator 410, the eigenvalue generator 420, the eigenvalue receiver 430, the aggregator 440, and the storage 450 perform the steps 510 to 550 of FIG. 5 Can be implemented.

In step 510, the eigenvalue generator 410 may generate an eigenvalue for identifying a request for the content in response to a request for the user's content. If the transport server (e.g., transport system 110) that transmits content to the user is a separate system from the aggregation system 400, the aggregation system 400 may send a request for content of the user to the transport server Can be delivered. The eigenvalues can be generated for each individual request and can be generated to identify individual requests even for the same content. For example, the eigenvalues may be generated as a string, eigenvalues may be generated in the form of URLs that can query the content and provided to the transport server. As another example, the eigenvalue may be transformed into a URL that can query the content at the transport server and provided to the user.

In step 520, eigenvalue provider 420 may provide the generated eigenvalue. As described above, when the transmission server is a separate system from the aggregation system 400, the eigenvalue creator 420 can provide a unique value to the transmission server, and a unique value can be delivered to the user through the transmission server have.

In operation 530, the eigenvalue receiver 430 may receive the eigenvalues transmitted according to the inquiry about the user's content. This eigenvalue can be passed through the transport server.

In step 540, the aggregator 440 may retrieve the unique value from the database and aggregate the query on the content into a valid exposure or view if the unique value is not present in the database. An inquiry about the content may mean an exposure or a view depending on the goods for which the content is provided. The differences between these exposures and views have already been discussed in detail. If the eigenvalues are re-received after the eigenvalues are stored in the database (if the eigenvalues exist in the database), the inquiry about the contents related to the re-received eigenvalues may be invalidated. As described above, even if the URL for the same contents is repeatedly replayed, it is possible to prevent the repetitive counting of the exposure or the view, thereby preventing the duplicated charging.

In step 550, the storage unit 450 may store the unique value in the database when the query on the content is aggregated into a valid exposure or view. Eigenvalues can be stored in the database only for valid exposures or views, not for each generation of eigenvalues. In this case, when comparing the number of views versus the number of requests, it is possible to drastically reduce the number of times the database is subjected to a write operation for storing the eigenvalues.

In another embodiment, the eigenvalue provider 420 may provide the server time associated with the generation of the eigenvalue in step 520, along with the eigenvalue. In addition, the eigenvalue receiver 430 may further receive the server time in addition to the eigenvalue in step 530. [ At this time, the aggregation unit 440 may aggregate the inquiry about the content into a valid exposure or view based on the relationship between the server time and the time of receiving the unique value. For example, the aggregation unit 440 may invalidate the inquiry when the time at which the eigenvalue was received is after the preset time from the server time. This time validity can be used for the accuracy of the aggregation as already explained.

In yet another embodiment, the eigenvalue and the server time may be provided in encrypted form by the eigenvalue provider 420 and decoded by the eigenvalue receiver 430. [ This encryption / decryption can be applied to prevent malicious use of eigenvalues and server time.

In yet another embodiment, the aggregation method may further include the step of managing information about an abnormal log format case (not shown) other than the steps of FIG. This unpublished step may be performed through an abnormal log format management unit (not shown) that the aggregation system 400 may further include. In this case, if the log format recorded in association with the inquiry about the content corresponds to the case of abnormal log format in step 540, the aggregation unit 440 may invalidate the inquiry about the content.

As described above, according to the embodiments of the present invention, the content view can be more accurately counted using the effective filter logic, and the number of times of writing to the unique value for identifying the request of the content can be drastically reduced.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA) , A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media 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 machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (13)

A computer-implemented aggregation method of an aggregation system,
Generating a unique value for identifying a user's different requests for content;
Providing the generated eigenvalue for a session corresponding to a request for the user's content;
Receiving the eigenvalues transmitted according to an inquiry about the contents of the user;
Retrieving the eigenvalue from the database and aggregating the query for the content into a valid exposure or view if the eigenvalue does not exist in the database;
Invalidating the inquiry according to the repeat request if the content inquiry according to the repeat request corresponds to the inquiry in the same session as the content, when the user's request is repeated for the content;
Validating the inquiry according to the repeat request if the inquiry according to the repeat request corresponds to the inquiry in the session different from the content; And
Storing the eigenvalue in the database when the query on the content is aggregated into a valid exposure or view;
≪ / RTI > The method according to claim 1,
Wherein the step of providing the eigenvalue for a session corresponding to a request for the content of the user comprises:
Providing a server time associated with the generation of the eigenvalue with the eigenvalue,
The step of receiving the eigenvalue comprises:
Further receiving the server time,
The step of aggregating an inquiry for the content into a valid exposure or view,
Aggregating the inquiry about the content into a valid exposure or view based on the relationship between the server time and the time of receiving the eigenvalue
Lt; / RTI > 3. The method of claim 2,
The invalidation step may include:
If the time at which the eigenvalue was received is later than a predetermined time from the server time, invalidating the inquiry
Lt; / RTI > 3. The method of claim 2,
Wherein the step of providing the eigenvalue for a session corresponding to a request for the content of the user comprises:
Encrypting and providing the server time and the eigenvalue,
The step of receiving the eigenvalue comprises:
And receiving and decoding the encrypted server time and the eigenvalue
Lt; / RTI > The method according to claim 1,
The invalidation step may include:
And invalidating the inquiry about the content related to the re-received eigenvalue when the eigenvalue is re-received after the eigenvalue is stored in the database
Lt; / RTI > The method according to claim 1,
The invalidation step may include:
If the log format recorded in association with the inquiry about the content corresponds to a case of an abnormal log format set in advance, invalidation of the inquiry about the content
Lt; / RTI > A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 1 to 6. In a computer implemented aggregation system,
An eigenvalue generator for generating eigenvalues for identifying different requests of the user for the content;
An eigenvalue generator for providing the generated eigenvalue to a session corresponding to a request for the user's content;
An eigenvalue receiver for receiving the eigenvalues transmitted according to an inquiry about the contents of the user;
If the eigenvalue does not exist in the database, the eigenvalue is searched in the database and the inquiry about the content is aggregated into a valid exposure or view, and when the user's request is repeated for the content, If the content inquiry corresponds to the inquiry in the same session as the content, invalidates the inquiry according to the repetition request, and if the inquiry according to the repetition request corresponds to the inquiry in the session different from the content, An aggregating unit for effective processing; And
And storing the eigenvalue in the database when an inquiry about the content is counted as a valid exposure or view,
≪ / RTI > 9. The method of claim 8,
Wherein the eigenvalue-
Providing a server time associated with the generation of the eigenvalue with the eigenvalue,
Wherein the eigenvalue receiver comprises:
Further receiving the server time,
Wherein the aggregating unit comprises:
Aggregating the inquiry about the content into a valid exposure or view based on the relationship between the server time and the time of receiving the eigenvalue
Lt; / RTI > 10. The method of claim 9,
Wherein the aggregating unit comprises:
If the time at which the eigenvalue was received is later than a predetermined time from the server time, invalidating the inquiry
Lt; / RTI > 10. The method of claim 9,
Wherein the eigenvalue-
Encrypting and providing the server time and the eigenvalue,
Wherein the eigenvalue receiver comprises:
And receiving and decoding the encrypted server time and the eigenvalue
Lt; / RTI > 9. The method of claim 8,
Wherein the aggregating unit comprises:
And invalidating the inquiry about the content related to the re-received eigenvalue when the eigenvalue is re-received after the eigenvalue is stored in the database
Lt; / RTI > 9. The method of claim 8,
An abnormal log format management unit for managing information on an abnormal log format case;
Further comprising:
Wherein the aggregating unit comprises:
If the log format recorded in association with the inquiry about the content corresponds to the case of the abnormal log format, invalidation of the inquiry about the content
Lt; / RTI >

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