JP2011159102A - Access history information collection method, advertisement information distribution method, access history information collection system, advertisement information distribution system, traffic interworking device, access history information storage device, advertisement information distribution control device, advertisement information distribution server apparatus, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology of discriminating a user from others even when a plurality of users use the same user terminal apparatus, without providing the user terminal apparatus with a dedicated program for collecting access history information. <P>SOLUTION: Even when a plurality of users 9 use the user terminal apparatus 6 in an access history information collection system 100, a traffic interworking device 71 and an access history information storage device 72 which are connected to a communication network 10 cooperate with each other. The users 9 are identified by a referer or a bloom filter. Even when a certain user 9 cannot be identified, a request is made for authentication of the user 9 and retransmission of a content acquisition request packet. The content acquisition request packet is associated with a response packet from a content server apparatus 51, so that access history information of each user 9 can be collected without requiring a dedicated program on the user terminal apparatus 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an access history information collecting technique for identifying a user in an IP (Internet Protocol) network and collecting access history information including a content server device accessed by the identified user.

  As a conventional access history information collection technique for collecting access history information including accessed content server devices in an IP network, for example, an access history information collection device connected via a network such as the Internet is a user used by a customer. There is one that collects information that browses or purchases a product sent from a terminal device as access history information together with time information of the action (see Patent Document 1).

JP 2004-341626 A

  However, in the technique of Patent Document 1, a dedicated program is prepared in the user terminal device in order to transmit information on browsing or purchasing products to the access history information collecting device together with time information from the user terminal device. Will have to. Further, there is no mention of collection of access history information when a plurality of customers use the same user terminal device.

  In other words, the above-described conventional access history information collection technique has a problem that it is necessary to prepare a dedicated program (such as a sniffing program) in the user terminal device, which is troublesome to implement.

  Further, when a plurality of users use the same user terminal device, there is a problem that access history information cannot be collected by distinguishing the users. For example, when multiple users share the same terminal, or share the same device address such as NAT (Network Address Translation) or proxy, network devices such as routers can normally handle it. This is because users cannot be distinguished at the IP header level at all (it looks the same).

  Therefore, the problem to be solved by the present invention is that there is no need to prepare a dedicated program for collecting access history information on the user terminal device side, and even when a plurality of users use the same user terminal device. It is to provide a technology capable of distinguishing users.

  In order to solve the above-described problems, the present invention has a traffic interworking device and an access history information storage device in an IP network, identifies a user of a user terminal device that accesses the IP network, and identifies the identified user. An access history information collecting system that collects access history information, wherein when the traffic interworking device receives a content acquisition request packet requesting acquisition of content, the traffic interworking device transmits the content acquisition request packet of the user terminal device When the user can be identified, the content acquisition request packet is transferred to the destination, and when the user of the user terminal device cannot be identified, the authentication notification for notifying that the user needs to be authenticated User identification means for transmitting a packet to the user terminal device; and the authentication Receiving a user authentication request packet for requesting authentication of the user transmitted from the user terminal device that has received the notification packet, authenticating the user, and retransmitting the content acquisition request packet for requesting retransmission The user authentication means for transmitting a transmission request notification packet to the user terminal device, and the response packet for specifying which user the response packet transmitted from the content server device that has received the content acquisition request packet is addressed to Associating means for associating the transferred content acquisition request packet and transferring the response packet to the user terminal device; the content server device accessed by a user of the user terminal device that has transmitted the associated content acquisition request packet; and Includes acquired content Access history information notifying means for notifying the access history information to the access history information storage device, the access history information storage device receives the access history information notified from the traffic interworking device, Access history information storage means for storing is provided.

  According to this invention, in the access history information collection system, even when the traffic interworking device cannot identify the user who transmitted it based on the content acquisition request packet, it transmits an authentication required notification packet to the user terminal device. Requesting user authentication and resending the content acquisition request packet. After that, by associating the response packet transmitted from the content server device that received the content acquisition request packet with the content acquisition request packet, a dedicated program for collecting access history information need not be prepared on the user terminal device side. Even when the same user terminal device is used, access history information for each user can be collected by the access history information storage device.

  In the access history information collecting system according to the present invention, the user identification unit calculates a hash value of the content acquisition request packet, and a user of the user terminal device that is the transmission source of the content acquisition request packet based on the hash value. In order to identify the content, a plurality of Bloom filters are configured corresponding to each predetermined number of times content acquisition request packets from users of the same user terminal device are transmitted, and the contents reflected in the plurality of Bloom filters When the number of acquisition request packets exceeds a preset threshold, the Bloom filter corresponding to the smallest number of times is deleted.

  According to this invention, it is possible to identify the user with a small amount of calculation by calculating the hash value of the content acquisition request packet and identifying the user using the Bloom filter constructed by the hash value.

  In the access history information collecting system according to the present invention, the user identification unit calculates a hash value of the content acquisition request packet, and a user of the user terminal device that is the transmission source of the content acquisition request packet based on the hash value. When the Bloom filter is configured to identify the same, the Bloom filter is configured in units of 2 bits, and the Bloom filter has a one-time transmission of content acquisition request packets from the same user terminal device user. “01” to indicate that the transmission is the same, and “10” to indicate that it corresponds to the next smallest number of transmissions, indicating that it corresponds to the largest number of transmissions In this case, “11” is set, and the number of content acquisition request packets reflected in the Bloom filter It exceeds the preset threshold, the "01" to "00", "10" to "01", and changes the "11" to "10".

  According to this invention, the user can be identified more easily by setting the configuration of the Bloom filter in units of 2 bits.

  In the access history information collection system, the user identification unit may identify the user when the referrer of the content acquisition request packet includes access destination URL information of the content server device. When the content acquisition request packet transmitted earlier is compared with the newly transmitted content acquisition request packet, the access source URL of the content acquisition request packet transmitted earlier is the same source And the user of the newly transmitted content acquisition request packet, and the user who transmitted the previously transmitted content acquisition request packet and the user of the newly transmitted content acquisition request packet Are determined to be the same.

  According to this invention, by identifying a user using the Referer in the content acquisition request packet, it is possible to realize highly accurate user identification with a simple configuration.

  In the access history information collection system according to the present invention, the associating unit may change the transmission source IP address and transmission source port number of the response packet to the transmission destination IP address and transmission destination port number of the content acquisition request packet. Correspondingly, by determining whether the source IP address and source port number of the content acquisition request packet correspond to the destination IP address and destination port number of the response packet, The content acquisition request packet is associated to specify that it is a packet for the same user.

  According to this invention, high-accuracy user identification is realized with a simple configuration by identifying a user by using the transmission source, transmission destination IP address and transmission source port number of the response packet and the content acquisition request packet. be able to.

  The present invention further includes an advertisement information distribution control device and an advertisement information distribution server device in an IP network in addition to the traffic interwork device and the access history information storage device in the access history information collection system, and the collected access It is an advertisement information distribution system that creates preference information indicating the user's preference based on history information, and distributes advertisement information that matches the preference information, wherein the traffic interworking device, instead of the association means, In order to identify the user to whom the response packet transmitted from the content server device that received the content acquisition request packet is addressed, the response packet is associated with the transferred content acquisition request packet and notified from the advertisement information distribution control device Advertising information acquisition for acquiring advertising information An advertisement information acquisition script insertion means for inserting the advertisement information acquisition script into the response packet and transferring the advertisement information to the advertisement information distribution control device according to script insertion approval information including a service provider who has approved the insertion of the script, The access history information storage device further receives access history information read information for reading out the access history information notified from the advertisement information distribution control device, and the access history information corresponding to the received access history information read information The advertisement information distribution control device includes a script insertion control unit that notifies the traffic interworking device of the script insertion consent information, and the access history information storage device. The history information read information is notified and the access is made. Server information analyzing means for acquiring history information and analyzing attributes of the content server device based on the acquired access history information; preference information generating means for generating the user preference information from the analyzed attributes; Preference information storage means for storing preference information, receiving preference information read information for reading the preference information notified from the advertisement information distribution server device, and transmitting the preference information corresponding to the received preference information read information; The advertisement information distribution server apparatus receives an advertisement information distribution request packet for requesting distribution of advertisement information transmitted from the user terminal apparatus that has received the response packet in which the advertisement information acquisition script is inserted. Then, the preference information read control information is notified to the advertisement information distribution control device, and the corresponding preference information is acquired. Preference information acquisition means, and advertisement information distribution means for selecting the advertisement information corresponding to the acquired preference information and distributing the selected advertisement information to the user terminal device.

  According to this invention, in the advertisement information distribution system, the user's preference is based on the collected access history information by linking the traffic interwork apparatus, the access history information storage apparatus, the advertisement information distribution control apparatus, and the advertisement information distribution server apparatus. Is created, and advertisement information suitable for the preference information is distributed, thereby eliminating the need for a database with a large processing capability.

The present invention is also a traffic interworking apparatus in an access history information collection system.
According to this invention, in the access history information collecting system, when the user who transmitted the received content acquisition request packet cannot be identified, the user terminal device is authenticated, and the content acquisition request packet is transmitted. A traffic interworking apparatus that performs operations such as re-transmission can be realized.

The present invention is also an access history information storage device in an access history information collection system.
According to this invention, in the access history information collection system, it is possible to realize an access history information storage device that receives and stores access history information notified from a traffic interworking device.

The present invention is also an advertisement information distribution control device in an advertisement information distribution system.
According to this invention, in the advertisement information distribution system, the attributes of the content server device are analyzed based on the acquired access history information, user preference information is created from the analyzed attributes and stored, and notified from the advertisement information distribution server device It is possible to realize an advertisement information distribution control device that receives preference information read information for reading out preference information and transmits corresponding preference information.

The present invention is also an advertisement information distribution server device in an advertisement information distribution system.
According to this invention, in the advertisement information distribution system, it is possible to realize an advertisement information distribution server device that distributes advertisement information corresponding to preference information to the user terminal device.

  Further, the present invention is a program for causing a computer in each system described above to function. According to this invention, each function based on this program can be realized in a computer in which this program is installed.

  According to the present invention, it is not necessary to prepare a dedicated program for collecting access history information on the user terminal device side, and it is possible to distinguish users even when a plurality of users use the same user terminal device. Technology that can be provided.

1 is an overall configuration diagram of an access history information collection system in a first embodiment. It is a figure for demonstrating the structure of the traffic interwork apparatus and access history information storage apparatus in 1st Embodiment. It is a figure for demonstrating the user identification process by the Bloom filter in 1st Embodiment. It is a figure for demonstrating the user identification process by Referer in 1st Embodiment. It is a flowchart which shows the process of the traffic interwork apparatus in 1st Embodiment. It is a flowchart which shows the process of the access history information storage apparatus in 1st Embodiment. It is a sequence chart which shows the process of each apparatus of the access history information collection system in 1st Embodiment. It is a whole block diagram of the advertisement information delivery system in 2nd Embodiment. It is a figure for demonstrating the structure of the advertisement information delivery control apparatus and advertisement information delivery server apparatus in 2nd Embodiment. It is a flowchart which shows the process of the traffic interwork apparatus in 2nd Embodiment. It is a flowchart which shows the process of the access history information storage apparatus in 2nd Embodiment. It is a flowchart which shows the process of the advertisement information delivery control apparatus in 2nd Embodiment. It is a flowchart which shows the process of the advertisement information delivery server apparatus in 2nd Embodiment. It is a sequence chart which shows the process of each apparatus of the advertisement information delivery system in 2nd Embodiment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments (hereinafter referred to as “embodiments”) of the present invention will be described with reference to the drawings (refer to drawings other than the referenced drawings as appropriate) for the first embodiment and the second embodiment. .

<First Embodiment>
(System configuration)
First, the configuration of the access history information collection system in the first embodiment will be described. As shown in FIG. 1, the access history information collection system 100 does not specify a communication network 10, an edge router device A11a, an edge router device B11b, and an edge router device C11c (hereinafter, which edge router device is specified). Is referred to as “edge router device 11”), server network 20, Internet 30, user information server device 41, content server device 51, user terminal device 6, and the traffic interface characteristic of the present embodiment. A work device 71 and an access history information storage device 72 that is a feature of the present embodiment are provided. Each device is a computer device. The user terminal device 6 is used by the user A9a and the user B9b (hereinafter referred to as “user 9” when not identifying which user).

  The edge router device A11a, the edge router device B11b, and the edge router device C11c are connected to the communication network 10. The server network 20 is connected to the edge router device B11b, the Internet 30 is connected to the edge router device C11c, and the user information server device 41 is connected to the server network 20. The content server device 51 is connected to the Internet 30, and the user terminal device 6 is connected to the edge router device A11a. The traffic interworking device 71 is a data traffic path of the communication network 10 and is connected to the edge router device 11 (here, the edge router device A11a). The access history information storage device 72 is connected to the traffic interwork device 71.

  The communication network 10 is a network that supports the IP protocol. The edge router device 11 is a router device that transmits and receives packets to and from the user terminal device 6 and the like.

  The server network 20 is a network that supports an IP protocol that can connect server apparatuses that provide various services. The Internet 30 is a network that supports an IP protocol that can connect a server apparatus that provides various information services.

  The user information server device 41 is a server device that accumulates subscription information for various services of the user 9. The content server device 51 is a server device that provides various contents.

  The user terminal device 6 is a terminal device operated by the user 9. The traffic interwork apparatus 71 is an apparatus for detecting a specific packet flowing through the communication network 10, identifying the user 9, and authenticating the user 9 (details will be described later). The access history information storage device 72 is a device that stores access history information (information related to the access history to the content server device 51 by the user 9 of the user terminal device 6) (details will be described later).

  In FIG. 1, one user terminal device 6 and two users 9 are shown, but more may exist. Further, although one content server device 51 is shown, more may be present.

(System function)
Next, functions of the access history information collection system 100 (hereinafter also simply referred to as “system”) will be described. The function of this system is that the content server device 51 and the content server device accessed by the user 9 for each user 9 even when the user terminal device 6 is used by a plurality of users (here, the user 9a and the user 9b). The access history information including the content information acquired from 51 can be collected and stored in the access history information storage device 72 (data flows (a), (b) and (c)).

(Configuration of traffic interwork device 71 and access history information storage device 72)
Next, the configuration of the traffic interwork apparatus 71 and the access history information storage apparatus 72 for realizing the above-described system function will be described. FIG. 2 conceptually shows only the portions related to the present embodiment with respect to the configurations of the traffic interwork apparatus 71 and the access history information storage apparatus 72.

(Configuration of traffic interworking device 71)
The traffic interwork apparatus 71 includes an interwork unit 711, a filtering unit 712, a user identification unit 713, and a user authentication unit 714.

  The interwork unit 711 includes a content acquisition request packet (packet requesting content acquisition), a user authentication request packet (packet requesting user authentication), and a response packet (response packet) among the packets flowing through the communication network 10. , The content acquisition request packet and the response packet are transferred according to the instruction of the user identification unit 713, and the authentication required notification packet (the packet for notifying that the user authentication is necessary) according to the instruction of the user identification unit 713 And an interwork means for transmitting a retransmission request notification packet (a packet for requesting retransmission of a content acquisition request packet) according to an instruction of the user authentication unit 714.

  The filtering unit 712 includes a filtering unit that distributes the content acquisition request packet and the response packet detected by the interwork unit 711 to the user identification unit 713 and distributes the user authentication request packet to the user authentication unit 714.

  The user identification unit 713 instructs the transfer of the content acquisition request packet when the user 9 who has transmitted the content acquisition request packet from the content acquisition request packet can be identified. User identification means for instructing transmission of the notification packet. In addition, the user identification unit 713 includes an association unit 7131 that associates the response packet transmitted from the content server device 51 that has received the content acquisition request packet with the transferred content acquisition request packet and instructs transfer of the response packet. Also, the user identification unit 713 notifies the access history information storage device 72 of the content server device 51 accessed by the user 9 who transmitted the associated content acquisition request packet and the access history information including the content acquired from the content server device 51. Access history information notification means 7132 is provided.

  The user authentication unit 714 receives the user authentication request packet, confirms that the user is a service target person based on the user information (here, the user information server device 41 is accessed and the user information is read), and the user ID is given to the user 9. And a user authentication means for instructing the user terminal device 6 to transmit a retransmission request notification packet.

  Also, the user identification unit 713 calculates, for each user 9, a hash value of the content acquisition request packet transmitted by the user 9, configures (constructs) a Bloom filter (BF) with these hash values, and newly When a content acquisition request packet is sent, the hash value of the newly sent content acquisition request packet is calculated, and the hash value of the newly sent content acquisition request packet and the Bloom filter configured for each user 9 are calculated. Match. When the user identifying unit 713 identifies that the user 9 having the Bloom filter matched by the collation is the user 9 who has transmitted the new content acquisition request packet, the frequency at which the content acquisition request packet is transmitted A Bloom filter is configured according to (number of times). When the number of content acquisition request packets reflected in the Bloom filter exceeds a preset threshold, the Bloom filter corresponding to the content acquisition request packet having a high transmission frequency is left, and the bloom corresponding to the content acquisition request packet having a low transmission frequency is left. Clear the filter.

  In addition, the user identification unit 713 sets the Bloom filter to a unit of 2 bits and sets “01” to indicate that the transmission frequency corresponds to one time, and responds to a higher transmission frequency. “10” to indicate this, “11” to indicate that it corresponds to a higher transmission frequency, and when the number of content acquisition request packets reflected in the Bloom filter exceeds a preset comparison value , “01” may be changed to “00”, “10” may be changed to “01”, and “11” may be changed to “10”.

  In addition, when the URL (Uniform Resource Locator) of the content server device 51 is described in the Referer of the newly transmitted content acquisition request packet, the user identification unit 713 sends a new content acquisition request packet to the sender You may make it identify with the user 9 who transmitted the content acquisition request packet whose IP is the same and whose destination URL is the same as the URL of the Referrer.

  In addition, the user identification unit 713 associates the response packet with the transferred content acquisition request packet so that the transmission source IP address and transmission source port number of the response packet are the transmission destination IP address and transmission destination port number of the content acquisition request packet. The transmission source IP address and transmission source port number of the content acquisition request packet may correspond to the transmission destination IP address and transmission source port number of the response packet.

(Configuration of access history information storage device 72)
The access history information storage device 72 has an access history information storage unit 721. The access history information accumulating unit 721 has access history information accumulating means for receiving and accumulating access history information notified from the traffic interwork apparatus 71.

  As described above, even when a plurality of users 9 (user 9a and user 9b here) use the user terminal device 6, the user identifying unit 713 identifies the user 9 that has transmitted the content acquisition request packet and cannot be identified. In this case, the user authentication unit 714 can identify the user 9 by authenticating it. Accordingly, the user identification unit 713 collects the access history information including the content server device 51 accessed by the user 9 and the content acquired from the content server device 51, and stores the collected access history information in the access history information storage device 72. Will be able to.

(User identification process using Bloom filter)
Next, user identification processing by the Bloom filter of the traffic interwork apparatus will be described in detail. FIG. 3A shows the flow of processing. For example, when the user A9a operates the user terminal device 6 and transmits a new content acquisition request packet (process (1)), the user identification unit 713 calculates a hash value, and the user A9a Bloom filter (user A9a And a user's 9b Bloom filter (composed from the hash value of the content acquisition request packet sent so far by the user B9b) and a collation with more user's Bloom filters. If there are any, match those Bloom filters) and try to find a matching Bloom filter.

  If all of the results of the verification do not match (process (2)) (first identification as described above), a user authentication request packet including information on a new content acquisition request packet is sent from the user terminal device 6 Then (processing (3)), the user authentication unit 714 authenticates who is going to transmit a new content acquisition request packet (here, user A9a). The user authentication unit 714 adds (reflects) the hash value of the new content acquisition request packet to the Bloom filter of the user A 9a (processing (4)), and retransmits the new content acquisition request packet to the user terminal device 6. (Processing (5)).

  When the user terminal device 6 retransmits a new content acquisition request packet (process (6)), as in the first identification, the user identification unit 713 calculates a hash value and performs collation from the Bloom filter of the user A9a. This time, it matches the Bloom filter of the user A9a (process (7)), and it is identified that the user A9a has transmitted this new content acquisition request packet (identification for the second time).

  Since the user 9 has been identified, the user identification unit 713 transfers a new content acquisition request packet to the content server device 51 (process (8)), and performs write control on the Bloom filter of the user A9a (process (9)). . Write control will be described later.

  FIG. 3B shows the configuration of the Bloom filter. (A) is an example in which the Bloom filter is configured with three types of Bloom filters (BFa, BFb, and BFc), and (b) is an example in which the Bloom filter is configured in units of 2 bits. Bring effect.

  In the example of FIGS. 3B and 3A, when the Bloom filter BFa and the hash value of the content acquisition request packet are matched and matched, the writing of “1” is performed with a probability of 50%. The Bloom filter BFc is configured so that “1” is written with a probability of 25%. As a result, even a content acquisition request packet with low transmission frequency, for example, only one transmission, is reflected in the Bloom filter BFa. However, the Bloom filter BFb reflects what was transmitted three times or more statistically, and the Bloom filter BFc reflects what was transmitted seven times or more statistically. . When the content acquisition request packet reflected in the Bloom filter BFa exceeds a preset threshold, the Bloom filter BFa is deleted, and the Bloom filter BFb is positioned in the Bloom filter BFa, thereby avoiding a false positive of the Bloom filter. It becomes possible.

  In the example of FIGS. 3B and 3B, the Bloom filter is configured in 2-bit units, and “00” is set to “01” with a probability of 100% when transmission is performed even once. When a packet is transmitted in the above manner, “10” is written with a probability of 50%, and when a packet is transmitted in a state of “10”, writing is performed with “11” with a probability of 25%. When the number of non- “00” elements included in the Bloom filter exceeds a preset threshold, “01” is set to “00”, “10” is set to “01”, and “11” is set to “10”. By doing so, it is possible to avoid an increase in false positives of the Bloom filter.

(User identification processing by Referer)
Next, user identification processing by the Referer of the traffic interwork apparatus 71 will be described. As shown in FIG. 4, the content acquisition request packet transmitted earlier is from user A, the source IP is “N”, and the access destination URL is “X” of the URL of the content server device 51. Shall. Also, regarding the newly transmitted content acquisition request packet, it is assumed that the source IP is “N”, the access destination URL is “Y”, and the Referer is “X”.

  In this case, since the source IP is “N” and the same, the access destination URL of the previously acquired content acquisition request packet and the Referer of the newly transmitted content acquisition request packet are the same “X”. The newly transmitted content acquisition request packet can also be identified as being from user A.

(Operation of each device)
(Operation of Traffic Interwork Device 71)
Next, the operation of the traffic interwork apparatus 71 will be described. As shown in FIG. 5, when the content acquisition request packet is transmitted from the user terminal device 6, the interwork unit 711 detects the content acquisition request packet in the traffic interwork device 71 (step A1), and the filtering unit 712 Is transmitted to the user identification unit 713 (“content acquisition request packet” in step A2), and the user identification unit 713 performs user identification processing by the Referer (step A3).

  If the user cannot be identified ("identification not possible" in step A3), the user identification unit 713 calculates a hash value (step A4), collates with the Bloom filter (step A5), and identifies the user by the Bloom filter. Processing is performed (step A6). When user identification is successful (“identification is possible” in step A6), the user identification unit 713 writes a Bloom filter (step A7) and transfers a content acquisition request packet (step A8).

  When the user can be identified in step 3 (“identification is possible”), the user identifying unit 713 immediately transfers the content acquisition request packet (step A8). When the user cannot be identified in Step A6 (“identification is impossible”), the user identifying unit 713 transmits an authentication required notification packet to the user terminal device 6 (Step A9).

  When a user authentication request packet is transmitted from the user terminal device 6 that has received the authentication required notification packet transmitted in step A9, the interwork unit 711 detects the user authentication request packet (step A1), and the filtering unit 712 The information is transmitted to the user authentication unit 714 (“user authentication request packet” in step A2), and the user authentication unit 714 confirms the user information (step A10).

  The user authentication unit 714 checks the presence / absence of the user ID (step A11). If there is no user ID (if not issued) (“none”), the user ID is issued (step A12) and is included in the user authentication request packet. The content acquisition request packet is added to the Bloom filter based on the information of the content acquisition request packet that could not be identified by the user (step A13), and a retransmission request notification packet is transmitted to the user terminal device 6 (step A13). Step A14). When the user ID is present (when paid out) (“present”), step A12 is skipped.

  When the content acquisition request packet is retransmitted from the user terminal device 6 that has received the retransmission request notification packet transmitted in step A14, the interwork unit 711 detects the content acquisition request packet (step A1), and the filtering unit 712 notifies the user identification unit 713 (“content acquisition request packet” in step A2).

  After that, the user identification unit 713 performs the user identification process by the Referer but cannot identify the user (“identification is impossible” in Step A3), and performs the user identification by the Bloom filter. This time, the content of the Bloom filter is identified. Since it has changed as possible, it can be identified ("identification is possible" in steps A4 to A6), the Bloom filter is written (step A7), and the content acquisition request packet is transferred (step A8).

  When a response packet is transmitted from the content server device 51 that has received the content acquisition request packet, the interwork unit 711 detects the response packet (step A1), and the filtering unit 712 notifies the user identification unit 713 (in step A2). "Response packet").

  Thereafter, the user identification unit 713 associates the content acquisition request packet that has been transferred previously (step A15), transfers the response packet (step A16), and the user 9 that receives the response packet by the association of step A15 Thus, the access history information of the user 9 is collected (step A17), and the collected access history information is notified to the access history information storage device 72 (step A18).

(Operation of the access history information storage device 72)
Next, the operation of the access history information storage device 72 will be described. As shown in FIG. 6, when the access history information is notified from the traffic interwork device 71, the access history information storage unit 72 receives the access history information in the access history information storage device 72 (step B1) and stores it. (Step B2).

(System operation)
Next, the operation of this system will be described. As shown in FIG. 7, when the user A 9a performs a content acquisition operation (step C1), the user terminal device 6 transmits a content acquisition request packet (step C2), and the traffic interwork device 71 receives the content acquisition request packet. Receive.

  Subsequently, when the user cannot be identified in the traffic interworking device 71 (step C3), an authentication required notification packet is transmitted (step C4), and the user terminal device 6 receiving the authentication required notification packet receives the user authentication required. A request packet is transmitted (step C5).

  Thereafter, the traffic interworking device 71 detects the user authentication request packet, performs user authentication (step C6), and transmits a retransmission request notification packet (step C7). The user terminal device 6 that has received the retransmission request notification packet transmits the content acquisition request packet again (step C8), and the traffic interwork device 71 detects the content acquisition request packet and identifies the user (step C9). Then, the content acquisition request packet is transferred to the content server device 51 (step C10).

  When the content server device 51 that has received the content acquisition request packet transmits a response packet (step C11), the traffic interworking device 71 detects the response packet and associates it with the content acquisition request packet transferred in step C10. (Step C12), the response packet is transferred to the user terminal device 6 (Step C13).

  The user terminal device 6 that has received the response packet displays the content (step C14), and the traffic interwork device 71 collects access history information following step C12 (step C15). The storage device 72 is notified (step C16). The access history information storage device 72 receives and stores access history information (step C17).

  If the user can be identified for the content acquisition request packet transmitted in step C2, steps C3 to C8 are omitted.

  Thus, according to the access history information collection system 100 of the first embodiment, even when a plurality of users use one user terminal device 6, it is possible to collect access history information by distinguishing users. It becomes possible.

  Further, by providing a data acquisition mechanism in the access history information storage device 72 (see FIG. 1) on the communication network 10 side, it is not necessary to prepare a dedicated program for collecting access history information on the user terminal device 6 side.

  In addition, by using a Referer or a Bloom filter, even when a plurality of users use one user terminal device 6, the users can be distinguished.

(Second Embodiment)
Next, as the second embodiment, user preference information (information indicating user preference) is created based on the access history information collected in the access history information collection system 100 of the first embodiment, and the created preference information A mode of distributing matched advertisement information (information about advertisement) will be described. The difference from the first embodiment is not only collecting access history information but also distributing advertisement information that matches the user's preference based on the collected access history information. In addition, the same code | symbol is attached | subjected about the same or equivalent structure and function as the case of 1st Embodiment, and the overlapping description is abbreviate | omitted suitably.

(System configuration)
First, the configuration of the system of the second embodiment will be described. As shown in FIG. 8, the advertisement information distribution system 200 is different from the access history information collection system 100 in the advertisement information distribution control device 8, the service provider information server device 42, the advertisement information distribution server device 43, and the advertisement provider server. The device 52 is added.

  The service provider information server device 42 and the advertisement information distribution server device 43 are connected to the server network 20. The advertisement provider server device 52 is connected to the Internet 30. The advertisement information distribution control device 8 is connected to the access history information storage device 72 and the edge router device 11a.

  The service provider information server device 42 is a server device that accumulates participation information on various services of the service provider. The advertisement information distribution server device 43 is a server device that distributes advertisement information. These details will be described later.

  The advertisement provider server device 52 is a server device that provides various types of advertisement information. The advertisement information distribution control device 8 is a device that controls distribution of advertisement information. These details will be described later.

(System function)
Next, functions of the advertisement information distribution system 200 (hereinafter also simply referred to as “system”) will be described. The function of this system is that the content server device 51 and the content server device accessed by the user 9 for each user 9 even when the user terminal device 6 is used by a plurality of users (here, the user 9a and the user 9b). 51 collects access history information including content acquired from 51 (data flows (a), (b), and (c)), and enables distribution of advertisement information that matches user preferences based on the collected access history information. (Data flows (d) and (e)).

(Configuration of each device)
Next, the configuration of each device for realizing the system function described above will be described. FIG. 9 conceptually shows only the portions related to the present embodiment in the configuration of the traffic interwork apparatus 71, the access history information storage apparatus 72, the advertisement information distribution control apparatus 8, and the advertisement information distribution server apparatus 43. Is.

(Configuration of traffic interworking device 71)
The traffic interworking device 71 changes the function of the user identification unit 713 as compared to the case of the first embodiment. This change is to change the association unit 7131 to an advertisement information acquisition script insertion unit 7133 to be described next.

  The advertisement information acquisition script insertion unit 7133 associates the response packet transmitted from the content server device 51 that received the content acquisition request packet with the transferred content acquisition request packet, and acquires the advertisement information notified from the advertisement information distribution control device 8. In order to acquire advertisement information in the response packet based on information (script insertion permission information) regarding insertion permission of the advertisement information acquisition script including being a service provider who has accepted insertion of the script (script for acquiring advertisement information) It is means for inserting and transferring the advertisement information acquisition script.

(Configuration of access history information storage device 72)
The access history information storage device 72 changes the function of the access history information storage unit 721 compared to the case of the first embodiment. This change is to add an access history information transmitting means 7213 described below.

  The access history information transmission unit 7213 is a unit that receives the access history information read information (information for reading the access history information) notified from the advertisement information distribution control device 8 and transmits the access history information of the corresponding user 9. is there.

(Configuration of advertising information distribution control device 8)
The advertisement information distribution control device 8 includes a script insertion control unit 81, a server attribute analysis unit 82, a preference information creation unit 83, and a preference information accumulation unit 84.

  The script insertion control unit 81 confirms that the service provider has accepted the script insertion based on the service provider information (here, the service provider information server device 42 is accessed to read and acquire the service provider information). ), Script insertion control means for notifying the traffic interwork apparatus 71 of the script insertion consent information.

  The server attribute analysis unit 82 notifies the access history information storage device 72 of the access history information read information, acquires the access history information of the corresponding user 9, and analyzes the attributes of the content server device 51 based on the acquired access history information. Server attribute analysis means.

  The preference information creation unit 83 includes preference information creation means for creating preference information of the user 9 from the attributes analyzed by the server attribute analysis unit 82.

  The preference information accumulation unit 84 includes preference information accumulation means for accumulating preference information created by the preference information creation unit 83.

(Configuration of advertisement information distribution server device 43)
The advertisement information distribution server device 43 includes a preference information acquisition unit 431 and an advertisement information distribution unit 432.

  The preference information acquisition unit 431 receives an advertisement information distribution request packet (a packet for requesting distribution of advertisement information) transmitted from the user terminal device 6 that has received the response packet in which the advertisement information acquisition script is inserted, and distributes the advertisement information. Preference information acquisition means for transmitting preference information read information (information for reading preference information) to the control device 8 and acquiring the corresponding preference information of the user 9 is provided.

  The advertisement information distribution unit 432 selects advertisement information that matches the preference information acquired by the preference information acquisition unit 431 (here, the advertisement information server device 52 is accessed and advertisement information that matches the preference information is selected. ), And advertisement information distribution means for distributing the selected advertisement information.

(Operation of each device)
Next, the operation of each device will be described.

(Operation of Traffic Interwork Device 71)
First, the operation of the traffic interwork apparatus 71 will be described. As shown in FIG. 10, the traffic interworking device 71 performs the processing after step A1, but as compared to the case of the first embodiment, the processing after step A15 is changed.

  When the user identification unit 713 associates with the previously acquired content acquisition request packet (step A15), the service business that has accepted the insertion of the script for acquiring the advertisement information notified from the advertisement information distribution control device 8 It is checked whether the script insertion acceptance information including the fact that the user is a user is received, that is, whether the service provider has accepted the insertion (step A19).

  If the service provider has accepted the insertion (Yes in Step A19), the user identification unit 713 inserts an advertisement information acquisition script for acquiring advertisement information into the response packet (Step A20), and transfers the response packet. (Step A16). If the service provider does not accept the insertion (No in step A19), step A20 is skipped.

  Further, the user identification unit 713 knows the user 9 receiving the response packet by the association in step A15, so collects the access history information of the user 9 (step A17), and collects the collected access history information in the access history information storage device 72. (Step A18).

(Operation of the access history information storage device 72)
Next, the operation of the access history information storage device 72 will be described. As illustrated in FIG. 11, the access history information storage device 72 executes the processing of Step B3 to Step B5 in parallel with the processing of Steps B1 and B2 as compared with the case of the first embodiment.

  The access history information storage device 72 receives the access history information read information notified from the advertisement information distribution control device 8 (step B3), and reads the corresponding access history information of the user 9 from the access history information storage unit 721 (step B3). B4) The read access history information is transmitted to the advertisement information distribution control device 8 (step B5).

(Operation of Advertising Information Distribution Control Device 8)
Next, the operation of the advertisement information distribution control device 8 will be described. As shown in FIG. 12, in the advertisement information distribution control device 8, the script insertion control unit 81 accesses the service provider information server device 42, reads the service provider information (step D1), and accepts the script insertion. The operator is selected (step D2), and the script insertion consent operator information is notified to the traffic interwork apparatus 71 (step D3).

  At the same time, the server attribute analysis unit 82 notifies the access history information storage device 72 of the access history information read information (step D4), and acquires the access history information of the corresponding user 9 from the access history information storage device 72. Then, the content server device 51 accessed by the user 9 and the attribute of the acquired content are acquired from the acquired access history information (step D6), and the preference information of the user 9 is acquired from the attribute acquired by the preference information creating unit 83. (Step D7), and the preference information created by the preference information creation unit 83 is stored in the preference information storage unit 84 (step D8).

  In parallel, the server attribute analysis unit 82 receives the preference information read information notified from the advertisement information distribution server device 43 (step D9), and reads the corresponding user 9 preference information from the preference information storage unit 84. (Step D10), the read preference information is transmitted to the advertisement information distribution server device 43 (Step D11).

(Operation of Advertising Information Distribution Server Device 43)
Next, the operation of the advertisement information distribution server device 43 will be described. As shown in FIG. 13, in the advertisement information distribution server device 43, the preference information acquisition unit 431 receives the advertisement information request packet transmitted from the user terminal device 6 (step E <b> 1), and preference is given to the advertisement information distribution control device 8. The information read information is transmitted (notified) (step E2), the corresponding preference information of the user 9 is acquired from the advertisement information distribution control device 8 (step E3), and the advertisement that matches the preference information acquired by the advertisement information distribution unit 432 The information is accessed (selected) by accessing the advertisement provider server device 52 (step E4), and the selected advertisement information is distributed (step E5).

(System operation)
Next, the operation of this system will be described. As shown in FIG. 14, the operation of this system is obtained by adding steps C18 to C29 to the operation in the first embodiment (see FIG. 7).

  The advertisement information distribution control device 8 selects a service provider that has accepted the script insertion (step C18), and notifies the traffic interworking device 71 of the script insertion consent provider information (step C19).

  The traffic interworking device 71 receives the script insertion consent provider information and inserts the script into the response packet of the accepted service provider (step C20). Further, the advertisement information distribution control device 8 acquires the access history information from the access history information storage device 72 (step C21), accesses the content server device 51 by the access history information, and the content server device 51 accessed by the user 9 and The attribute of the acquired content is analyzed (step C22), and the preference information of the user 9 is created and stored (step C23).

  When the user terminal device 6 receives and displays the response packet in which the script is inserted and the user A9a performs an advertisement acquisition operation on the user terminal device 6 (step C24), the user terminal device 6 receives the advertisement information request packet. Is transmitted (step C25).

  The advertisement information distribution server device 43 receives the advertisement information request packet, accesses the advertisement information distribution control device 8, acquires the corresponding preference information of the user 9 (step C26), and selects the advertisement information that matches the acquired preference information. The advertisement provider server device 52 is accessed and selected (step C27), the selected advertisement information is distributed to the user terminal device 6 (step C28), and the user terminal device 6 receiving the advertisement information displays an advertisement ( Step C29).

  Thus, according to the advertisement information distribution system 200 of the second embodiment, even if there is no database with a large processing capability, user preference information is created based on the collected access history information, and an advertisement that matches the preference information. Information can be distributed.

  Further, it is a method of collecting data on the communication network 10 side, so that it is possible to collect information on all Web services used by the user, and as a result, automatic classification of users can be performed with a certain degree of accuracy using abundant information. By using the classification result for the transmission of the advertisement information, the advertisement information can be distributed without having the profile information transmitted from the user in advance (that is, without bothering the user). it can.

  In addition, the preference information is created at any time by the advertisement distribution control device 8 (preference information creation unit 83) (see FIGS. 8 and 9) and transferred to the advertisement information distribution server device 43, thereby avoiding obsolescence of the preference information. can do.

  In addition, by using the Bloom filter (see FIG. 3), it becomes possible to identify the user without changing the amount of calculation even if the information used for comparison increases per user. It becomes unnecessary.

  In the conventional advertisement information distribution technology that distributes advertisement information that matches the user's hobbies and preferences in the IP network, the user needs to transmit information representing the user's attributes in advance. There is a problem that the user is bothered and worried about the staleness of the transmitted information. In addition, when a method of storing individual user information in a database in advance is employed, there is a problem that a database having a large processing capability is required. According to the advertisement information distribution system 200 of the second embodiment, these problems are solved.

  In addition, if a program for causing a computer (apparatus) constituting the access history information collection system 100 or the advertisement information distribution system 200 to be executed and installed in the computer, the computer realizes each function based on the program. be able to.

  The present invention is not limited to the above-described embodiments described with reference to FIGS. 1 to 14 and can be variously modified without departing from the gist thereof. For example, the user authentication unit 714 may have user information of the user information server device 41. The script insertion control unit 81 may have the service provider information that the service provider information server device 42 has.

10 Communication network 11a Edge router device A
11b Edge router device B
11c Edge router device C
DESCRIPTION OF SYMBOLS 20 Server network 30 Internet 41 User information server apparatus 42 Service provider information server apparatus 43 Advertisement information delivery server apparatus 51 Content server apparatus 52 Advertisement provider server apparatus 6 User terminal apparatus 71 Traffic interwork apparatus 711 Interwork section 712 Filtering section 713 User identification unit 714 User authentication unit 72 Access history information storage device 721 Access history information storage unit 8 Advertising information distribution control device 81 Script insertion control unit 82 Server attribute analysis unit 83 Preference information creation unit 84 Preference information storage unit 9a User A
9b User B

Claims (17)

Access history information that has a traffic interwork device and an access history information storage device in an IP (Internet Protocol) network, identifies a user of a user terminal device that accesses the IP network, and collects access history information of the identified user A method of collecting access history information by a collection system,
The traffic interworking device comprises user identification means, user authentication means, association means, and access history information notification means,
The access history information storage device includes access history information storage means,
In the traffic interworking device,
When the content identification request packet for requesting content acquisition is received, the user identification unit can identify the content acquisition request packet when the user of the user terminal device that transmitted the content acquisition request packet has been identified. Forwarded to a destination, when the user of the user terminal device could not be identified, an authentication required notification packet for notifying that user authentication is required is transmitted to the user terminal device;
The user authentication means receives a user authentication request packet for requesting authentication of the user transmitted from the user terminal device that has received the authentication request notification packet, performs authentication for the user, and receives the content acquisition request packet. A retransmission request notification packet for requesting retransmission of the user terminal device,
The associating means associates the response packet with the transferred content acquisition request packet in order to identify a user to whom the response packet transmitted from the content server apparatus that has received the content acquisition request packet is addressed, and Transfer the packet to the user terminal,
The access history information notification means notifies the access history information storage device of the access history information including the content server device accessed by the user of the user terminal device that has transmitted the associated content acquisition request packet and the acquired content. And
In the access history information storage device,
The access history information collecting means receives and accumulates the access history information notified from the traffic interworking device. The access history information collection system according to claim 1, further comprising an advertisement information delivery control device and an advertisement information delivery server device in an IP network in addition to the traffic interworking device and the access history information storage device, and the collected access An advertisement information distribution method by an advertisement information distribution system that creates preference information indicating the user's preference based on history information and distributes advertisement information that matches the preference information,
The traffic interworking device has advertisement information acquisition script insertion means instead of the association means,
The access history information storage device further includes an access history information transmission unit,
The advertisement information distribution control device has script insertion control means, server attribute analysis means, preference information creation means, and preference information storage means,
The advertisement information distribution server device has preference information acquisition means and advertisement information distribution means. In the traffic interworking device,
The advertisement information acquisition script insertion means includes the response packet and the transferred content acquisition request packet in order to identify a user to whom the response packet transmitted from the content server apparatus that has received the content acquisition request packet is addressed. Associating and inserting the advertisement information acquisition script into the response packet by script insertion acceptance information including a service provider who has accepted insertion of the advertisement information acquisition script for acquiring the advertisement information notified from the advertisement information distribution control device Forward to the advertisement information distribution control device,
In the access history information storage device,
The access history information transmitting means receives access history information read information for reading the access history information notified from the advertisement information distribution control device, and stores the access history information corresponding to the received access history information read information. Send
In the advertisement information delivery control device,
The script insertion control means notifies the traffic interworking apparatus of the script insertion consent information,
The server attribute analysis means obtains the access history information by notifying the access history information storage device of the access history information read information, and analyzes the attributes of the content server device based on the acquired access history information,
The preference information creating means creates the user preference information from the analyzed attribute,
The preference information storage means stores the preference information, receives preference information read information for reading preference information notified from the advertisement information distribution server device, and the preference information corresponding to the received preference information read information Send
In the advertisement information distribution server device,
The preference information acquisition means receives an advertisement information distribution request packet that requests distribution of advertisement information transmitted from the user terminal device that has received the response packet in which the advertisement information acquisition script is inserted, and distributes the advertisement information Notifying the preference information read information to the control device to obtain the corresponding preference information,
The advertisement information distribution means, wherein the advertisement information distribution means selects the advertisement information corresponding to the acquired preference information and distributes the selected advertisement information to the user terminal device. Access history information that has a traffic interwork device and an access history information storage device in an IP (Internet Protocol) network, identifies a user of a user terminal device that accesses the IP network, and collects access history information of the identified user A collection system,
The traffic interworking device is:
When a content acquisition request packet for requesting content acquisition is received, when the user of the user terminal device that has transmitted the content acquisition request packet is identified, the content acquisition request packet is transferred to the destination, and the user User identification means for transmitting to the user terminal device an authentication request notification packet for notifying that user authentication is required when the user of the terminal device cannot be identified;
Receiving a user authentication request packet for requesting authentication of the user transmitted from the user terminal device that has received the authentication notification packet, authenticating the user, and requesting retransmission of the content acquisition request packet The user authentication means for transmitting to the user terminal device a retransmission request notification packet for
In order to identify a user to whom a response packet transmitted from the content server apparatus that has received the content acquisition request packet is addressed, the response packet is associated with the transferred content acquisition request packet, and the response packet is associated with the user terminal. An association means for transferring to the device;
Access history information notifying means for notifying the access history information storage device of the access history information including the content server device accessed by the user of the user terminal device that has transmitted the associated content acquisition request packet and the acquired content; Have
The access history information storage device
An access history information collecting system comprising: access history information storage means for receiving and storing the access history information notified from the traffic interworking device. In the access history information collection system according to claim 3,
The user identification means includes
In order to calculate the hash value of the content acquisition request packet and identify the user of the user terminal device that is the transmission source of the content acquisition request packet by the hash value, the content acquisition request packet from the same user terminal device user When a plurality of Bloom filters are configured corresponding to each predetermined number of times transmitted, and the number of the content acquisition request packets reflected in the plurality of Bloom filters exceeds a preset threshold value, the number is reduced to the smallest number An access history information collecting system, wherein the corresponding Bloom filter is deleted. In the access history information collection system according to claim 3,
The user identification means includes
When the hash value of the content acquisition request packet is calculated, and the Bloom filter for identifying the user of the user terminal device that is the transmission source of the content acquisition request packet is configured by the hash value, the configuration of the Bloom filter is 2 bits If the number of transmissions of the content acquisition request packet from the user of the same user terminal device corresponds to one in the Bloom filter, “01” is set, and the next lowest number of transmissions The number of content acquisition request packets reflected in the Bloom filter is set to “10” to indicate that it corresponds to the maximum number of transmissions and “11” to indicate that it corresponds to the largest number of transmissions. Exceeds the preset threshold, “01” becomes “00”, “10” becomes “01”, Access history information collection system which is characterized in that to change 11 "to" 10 ". In the access history information collection system according to claim 3,
The user identification means includes
When information on the access destination URL (Uniform Resource Locator) of the content server device is included in the Referrer of the content acquisition request packet, when identifying the user, the content acquisition request packet transmitted earlier; The newly acquired content acquisition request packet is compared, and the access destination URL of the previously acquired content acquisition request packet and the Referer of the newly transmitted content acquisition request packet are the same. If they are the same, it is determined that the user who transmitted the previously transmitted content acquisition request packet and the user who transmitted the newly transmitted content acquisition request packet are the same. Information collection system. In the access history information collection system according to claim 3,
The association means includes
The source IP address and source port number of the response packet correspond to the destination IP address and destination port number of the content acquisition request packet, and the source IP address and source port number of the content acquisition request packet are In order to identify that the response packet and the content acquisition request packet are packets for the same user by determining whether or not the response packet corresponds to the transmission destination IP address and the transmission destination port number An access history information collection system characterized by 4. In addition to the traffic interworking device and the access history information accumulating device in the access history information collecting system according to claim 3, an IP network has an advertisement information distribution control device and an advertisement information distribution server device, and the collected access An advertisement information distribution system that creates preference information indicating the user's preference based on history information and distributes advertisement information that matches the preference information,
The traffic interworking device is:
Instead of the associating means, in order to identify the user to which the response packet transmitted from the content server apparatus that received the content acquisition request packet is addressed, the response packet and the transferred content acquisition request packet are associated, Inserting the advertisement information acquisition script into the response packet by script insertion acceptance information including a service provider who has accepted insertion of an advertisement information acquisition script for acquiring advertisement information notified from the advertisement information distribution control device, Having advertisement information acquisition script insertion means for transferring to the advertisement information distribution control device;
The access history information storage device
Further, the access history information transmission for receiving the access history information read information for reading the access history information notified from the advertisement information distribution control device and transmitting the access history information corresponding to the received access history information read information Having means,
The advertisement information delivery control device
Script insertion control means for notifying the traffic interworking device of the script insertion consent information;
Server attribute analysis means for notifying the access history information storage device of the access history information read information to acquire the access history information, and analyzing attributes of the content server device based on the acquired access history information;
Preference information creating means for creating the preference information of the user from the analyzed attribute;
Preference information storage means for storing the preference information, receiving preference information read information for reading preference information notified from the advertisement information distribution server device, and transmitting the preference information corresponding to the received preference information read information And having
The advertisement information distribution server device includes:
Receiving an advertisement information delivery request packet for requesting delivery of advertisement information transmitted from the user terminal device that has received the response packet in which the advertisement information acquisition script is inserted, and reading the preference information to the advertisement information delivery control device Preference information acquisition means for notifying information and acquiring the corresponding preference information;
An advertisement information distribution system comprising: advertisement information distribution means for selecting the advertisement information corresponding to the acquired preference information and distributing the selected advertisement information to the user terminal device. In the advertising information distribution system according to claim 8,
The user identification means includes
In order to calculate the hash value of the content acquisition request packet and identify the user of the user terminal device that is the transmission source of the content acquisition request packet by the hash value, the content acquisition request packet from the same user terminal device user When a plurality of Bloom filters are configured corresponding to each predetermined number of times transmitted, and the number of the content acquisition request packets reflected in the plurality of Bloom filters exceeds a preset threshold value, the number is reduced to the smallest number An advertisement information distribution system, wherein the corresponding Bloom filter is deleted. In the advertising information distribution system according to claim 9,
The user identification means includes
When the hash value of the content acquisition request packet is calculated, and the Bloom filter for identifying the user of the user terminal device that is the transmission source of the content acquisition request packet is configured by the hash value, the configuration of the Bloom filter is 2 bits If the number of transmissions of the content acquisition request packet from the user of the same user terminal device corresponds to one in the Bloom filter, “01” is set, and the next lowest number of transmissions The number of content acquisition request packets reflected in the Bloom filter is set to “10” to indicate that it corresponds to the maximum number of transmissions and “11” to indicate that it corresponds to the largest number of transmissions. Exceeds the preset threshold, “01” becomes “00”, “10” becomes “01”, Advertisement information delivery system, characterized in that the change 11 "to" 10 ". In the advertising information distribution system according to claim 8,
The user identification means includes
When information on the access destination URL (Uniform Resource Locator) of the content server device is included in the Referrer of the content acquisition request packet, when identifying the user, the content acquisition request packet transmitted earlier; The newly acquired content acquisition request packet is compared, and the access destination URL of the previously acquired content acquisition request packet and the Referer of the newly transmitted content acquisition request packet are the same. If they are the same, it is determined that the user who transmitted the previously transmitted content acquisition request packet and the user who transmitted the newly transmitted content acquisition request packet are the same. Distribution system. In the advertising information distribution system according to claim 8,
The association means includes
The source IP address and source port number of the response packet correspond to the destination IP address and destination port number of the content acquisition request packet, and the source IP address and source port number of the content acquisition request packet are In order to identify that the response packet and the content acquisition request packet are packets for the same user by determining whether or not the response packet corresponds to the transmission destination IP address and the transmission destination port number An advertising information distribution system characterized by   A traffic interworking apparatus in the access history information collecting system according to claim 3.   An access history information storage device in the access history information collection system according to claim 3.   The advertisement information delivery control apparatus in the advertisement information delivery system according to claim 8.   An advertisement information distribution server device in the advertisement information distribution system according to claim 8.   A program for causing a computer to execute the method according to claim 1 or 2.

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