JP2008186431A - Information retrieval system, information retrieval device, information retrieval result output method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately place advertisement with limited period together with retrieval results. <P>SOLUTION: The information retrieval system includes an advertisement information acquisition part 36 which acquires one or more pieces of advertisement information from an advertisement information DB which stores the advertisement information by associating it with a keyword and date and time information based on a retrieval keyword and retrieval execution date and time and a retrieval result output part 40 which outputs the advertisement information acquired by the advertisement information acquisition part 36 together with the retrieval results by the retrieval keyword. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information search system, an information search device, an information search result output method, and a program, and more particularly to a technique for outputting an advertisement together with a search result.

  In recent years, search-linked advertising (Pay for Performance: P4P) has become widespread. A search-linked advertisement is an advertisement related to a search keyword that is posted together with a search result mainly on a search site. This advertisement, which accurately captures user information search requests, is characterized by the ability to attract prospective customers more efficiently than the conventional Internet advertisement and has a very high advertising effect. Further, since the advertisement fee is charged according to the number of clicks (click rate) of the advertisement, the cost effectiveness is clearer than before.

For example, in Patent Document 1 below, if an advertiser bids in advance for a search keyword to be associated with an advertisement, when the search is executed, the advertiser who bids on the keyword that matches the search keyword is listed. 2. Description of the Related Art A search engine device is disclosed in which advertisements are placed in an order corresponding to a bid amount and an advertiser is charged an advertisement fee corresponding to the bid amount each time the advertisement is clicked.
Japanese Patent No. 3676999

  However, in the conventional search-linked advertisement mechanism, it has been difficult to appropriately place an advertisement with a limited advertisement period, such as a ticket that is released at a specific date and time or an event that is held at a specific date and time.

  For example, when bidding for a person name related to a ticket or an event, the bid price often increases due to competition, so it is necessary to prepare a high advertising fee. In addition, because the date and time are rarely specified as search keywords from the beginning, even if a bid is placed on the date and time information indicating a specific date and time related to a limited-time advertisement, there is a possibility that the limited-time advertisement will be posted with the search results Was low and had almost no advertising effect.

  The present invention has been made in view of the above-described conventional problems, and provides an information search system, an information search apparatus, an information search result output method, and a program capable of appropriately placing a limited-time advertisement together with a search result. For the purpose.

  In order to achieve the above object, an information search system according to the present invention includes one or more advertisement information storage means for storing advertisement information in association with a keyword and date / time information based on the search keyword and search execution date / time. It includes advertisement information acquisition means for acquiring advertisement information, and search result output means for outputting advertisement information acquired by the advertisement information acquisition means together with a search result based on the search keyword.

  In the present invention, advertisement information, keywords, and date and time information (specific date and time, advertisement period, etc. relating to an advertisement product such as a ticket release date and an event date) are stored in advance in the advertisement information storage unit. When the user inputs a keyword and executes a search, advertisement information is acquired from the advertisement information storage unit based on the input search keyword and the date and time when the search is executed. The acquired advertisement information is output together with the search result based on the search keyword.

  According to the present invention, even if the date and time is not specified for the search keyword, it is possible to appropriately place a limited-time advertisement related to the search keyword and the search execution date and time together with the search result. For example, some of the advertisement information associated with both the keyword that matches the search keyword and the date that matches the search execution date can be posted at random. Alternatively, among the advertisement information associated with the same keyword as the search keyword, the advertisement information associated with the date and time after the search execution date is posted in a predetermined order according to the date information related to the advertisement information, the click rate, etc. be able to.

  In one aspect of the present invention, the advertisement information acquisition unit further acquires date information related to each of the one or more advertisement information from the advertisement information storage unit, and the search execution date and the advertisement information acquisition unit According to each date and time information acquired, it further includes a posting mode determining unit that determines a posting mode of each advertising information acquired by the advertising information acquiring unit, and the search result output unit includes the posting mode determining unit The advertisement information acquired by the advertisement information acquisition means is output in the determined posting mode. According to this aspect, it is possible to appropriately place a limited-time advertisement in a manner determined according to the search execution date and time information related to the advertisement information. For example, the advertisement information associated with the same date as the search execution date is placed at the top of the search result output screen, placed in a predetermined decorative frame, or larger than other advertisement information. It can be posted in a typeface, making it easier for the user to see it than other advertising information.

  Further, in one aspect of the present invention, the posting mode determination unit is configured to acquire each of the advertisement information acquisition units based on a time difference between the search execution date and time information acquired by the advertisement information acquisition unit. Decide how to place advertising information. According to this aspect, it becomes possible to appropriately place a limited-time advertisement in a manner that is determined based on the time difference between the search execution date and time information related to the advertisement information. For example, an advertisement for a CD released one week after the search execution date can be posted together with a message “one week until CD release!” In a manner that is more easily noticed by the user than other advertising information.

  In one aspect of the present invention, the placement mode determination unit determines the ranking of each piece of advertisement information acquired by the advertisement information acquisition unit based on the time differences. According to this aspect, for example, the highest ranking is assigned to the advertisement information (current advertisement information) in which the time difference between the search execution date and time information becomes zero, and the time difference becomes a positive value (future future information). By assigning ranks so that the time differences are in ascending order, advertisement information for a limited time can be posted in the order that the period is from the present to the future.

  In one aspect of the present invention, the posting mode determination unit determines a posting mode of each advertisement information acquired by the advertising information acquisition unit based on whether or not each time difference is a predetermined value or less. .

  In this aspect, the posting mode determining means posts advertising information whose time difference is less than or equal to the predetermined value on a page including the search result, and posts advertising information whose time difference exceeds a predetermined value on other pages. You may decide to. In this way, the advertisement information associated with the date and time information close to the search execution date and time can be made easier for the user to notice than the other advertisement information.

  In this aspect, the posting mode determination unit may determine that the advertising information whose time difference exceeds the predetermined value is posted in a calendar format. In this way, advertising information associated with date and time information close to the search execution date can be posted in a format that is more easily noticed by the user than the calendar format, and many other advertising information can be posted in a calendar frame. .

  Moreover, in one aspect of the present invention, the posting mode determination unit determines to post advertisement information whose time difference is within a predetermined range in a calendar format. According to this aspect, since the advertisement information associated with the date / time information within a predetermined range from the search execution date / time (for example, from the search execution date / time to a certain time in the future) is posted within the predetermined calendar frame, the period is limited. It becomes easy for the user to see the advertisement information. In the calendar frame, past advertisement information may be posted.

  The information search apparatus according to the present invention is an advertisement that acquires one or a plurality of advertisement information from an advertisement information storage unit that stores advertisement information in association with a keyword and date and time information based on the search keyword and search execution date and time. It includes an information acquisition means, and a search result output means for outputting the advertisement information acquired by the advertisement information acquisition means together with the search result by the search keyword.

  Also, the information search result output method according to the present invention acquires one or a plurality of advertisement information from an advertisement information storage means for storing advertisement information in association with the keyword and the date and time information based on the search keyword and the search execution date and time. An advertisement information acquisition step, and a step of outputting the advertisement information acquired by the advertisement information acquisition means together with a search result by the search keyword.

  Further, the program according to the present invention acquires advertisement information that acquires one or a plurality of advertisement information from an advertisement information storage unit that stores advertisement information in association with the keyword and date information based on the search keyword and the search execution date. And a search result output means for executing processing for outputting advertisement information acquired by the advertisement information acquisition means together with a search result by the search keyword.

  The program may be stored in a computer-readable information recording medium. Examples of the information recording medium include a magnetic tape, flexible disk, hard disk, CD-ROM, MO, MD, DVD-ROM, and IC card. Etc. can be used.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an overall configuration diagram of an information search system according to an embodiment of the present invention. As shown in the figure, the information search system 10 includes an information search server 12, an advertisement server 16, a bid management server 20, a plurality of user terminals 28, and a plurality of advertiser terminals 30. The information search server 12, the advertisement server 16, and the bid management server 20 are connected to each other via a LAN (Local Area Network) so as to be able to exchange data. The information search server 12 is connected to each user terminal 28, and the bid management server 20 is connected to each advertiser terminal 30 via the Internet 26 so as to be able to communicate with each other. Further, the information search server 12 includes a web information database (hereinafter referred to as “DB”) 14, the advertisement server 16 includes an advertisement information DB 18, and the bid management server 20 includes a placement information DB 22 and an advertiser DB 24. Are provided.

  The information retrieval server 12 is a known server computer including program execution means such as a CPU, storage means such as RAM, ROM, and a hard disk storage device, display means and input means. The information retrieval server 12 is installed with an HTTPD (HyperText Transfer Protocol Daemon), a CGI (Common Gateway Interface) program for information retrieval, a resident program for collecting information and other programs, and other programs connected to the Internet 26. Regularly collects web information such as text information, image information, link information, etc. released by a plurality of web servers (not shown), accepts a search keyword from the user terminal 28 in accordance with HTTP (HyperText Transfer Protocol), A search result including web information that matches or relates to the search keyword, and advertisement information acquired from the advertisement server 16 based on the search keyword and the search execution date / time are returned.

  The web information DB 14 includes, for example, a hard disk storage device, and stores web information collected by the information search server 12 and index information for searching the web information at high speed.

  The advertisement server 16 is a known server computer including program execution means such as a CPU, storage means such as RAM, ROM, and hard disk storage device, display means, and input means. A program for managing advertisement information is installed in the advertisement server 16, and a part of the placement information received from the bid management server 20 is stored in the advertisement information DB 18. Further, the advertisement information read from the advertisement information DB 18 based on the search keyword transmitted from the information search server 12 and the search execution date is output to the information search server 12.

  The advertisement information DB 18 is configured to include, for example, a hard disk storage device, and stores advertisement information received by the advertisement server 16 from the bid management server 20.

  The bid management server 20 is a known server computer including program execution means such as a CPU, storage means such as RAM, ROM, and a hard disk storage device, display means and input means. The bid management server 20 is installed with HTTPPD, CGI for bid management, and other programs, and stores bid requests for advertisements received from the advertiser terminal 30 in accordance with HTTP as the placement information in the placement information DB 22. In response to a request from the advertiser terminal 30, the bid status at that time is returned. In addition, the advertisement information stored in the advertisement information DB 22 is periodically provided to the advertisement server 16.

  The placement information DB 22 and the advertiser DB 24 include, for example, a hard disk storage device. The placement information DB 22 stores information included in the bid request for the advertisement received from the advertiser terminal 30 by the bid management server 20 as the placement information in the placement information DB 22. Further, the advertiser DB 24 stores information on an advertiser who places an advertisement (advertiser ID for identifying the advertiser, advertiser name, email address, login password, etc.).

  The user terminal 28 is an information communication terminal including program execution means such as a CPU, storage means such as RAM, ROM, and a hard disk storage device, display means and input means. For example, a computer terminal such as a personal computer or a portable terminal such as a mobile phone. It is a terminal. The user terminal 28 is installed with a web browser for browsing web pages, and can receive web information search results and various types of advertisement information from the information search server 12.

  The advertiser terminal 30 is an information communication terminal including program execution means such as a CPU, storage means such as RAM, ROM, and a hard disk storage device, display means and input means. For example, a computer terminal such as a personal computer or a mobile phone It is a mobile terminal. The advertiser terminal 30 is installed with a web browser for browsing web pages, and confirms the bid status in the bid management server 20 or transmits a bid request for an advertisement to the bid management server. Can do.

  In the information search system 10 according to the present embodiment, a limited-time advertisement related to the search keyword and the search execution date / time can be appropriately posted even if the date / time is not specified as the search keyword. Hereinafter, such a function will be specifically described.

  When applying for insertion of a search-linked advertisement in the information search system 10, the advertiser first performs an authentication procedure using an advertiser ID and a password using the advertiser terminal 30, and logs into the bid management server 20. Then, the advertisement information to be put out (URL of the advertisement site, advertisement headline, advertisement message, etc.) is input, and keywords and date / time information associated with the advertisement information are input.

  FIG. 2 is a diagram illustrating an example of an advertisement placement screen displayed on the web browser of the advertiser terminal 30. This screen is displayed by accessing the advertisement placement CGI program of the bid management server 24 from the web browser of the advertiser terminal 30 and receiving HTML (HyperText Markup Language) data generated by the CGI program. is there. As shown in the figure, this screen displays the ID of the logged-in advertiser, the URL of the advertising site that is the link destination, the headline of the advertisement, the advertisement message displayed with the headline, one or more keywords associated with the advertisement, the date and time A text input field, a bid price, and the like are displayed for inputting information (date and time, date, time, period, etc.) and bid amounts of advertisements associated with the keywords and date information. In the same screen, when the advertiser inputs a character string in each text entry field and clicks the “advertisement placement” button with a pointing device such as a mouse connected to the advertiser terminal 30, the bid for the advertisement including the input content is displayed. The request is transmitted to the bid management server 20. The “advertisement placement” button is associated with the CGI program for accepting bids of the bid management server 20. By clicking this button, the CGI program for accepting bids is started in the bid management server 20. The advertiser ID, URL, headline, message, keyword, date / time information, bid amount, bid price, etc. are passed as arguments. The bid price is one of the parameters considered when determining the ranking of the advertisement information, and the bid price is high when there are a plurality of advertisement information associated with the same keyword and date / time information. A higher ranking is assigned to the advertisement information.

  When the bid acceptance CGI program is activated in the bid management server 20, the bid acceptance CGI program receives the advertiser ID, date / time information, keyword, advertisement information (advertisement site URL, headline, message, etc.) passed as arguments. ), The bid amount, the bid price, and the like are added to the placement information DB 22 shown in FIG. 3 as placement information. Thus, the placement information registered in the placement information DB 22 can be confirmed from the advertiser terminal 30.

  FIG. 4 is a diagram illustrating an example of a bid management screen displayed on the web browser of the advertiser terminal 30. On the same screen, date information, keyword, advertisement information, bid price, etc. relating to the advertisement information of the advertiser (here, “advertiser ID: 0001”) among the advertisement information stored in the advertisement information DB 22. A list of bids is displayed. FIG. 5 is a diagram illustrating an example of a bid status confirmation screen. On the same screen, among the pieces of placement information stored in the placement information DB 22, the placement that matches the extraction condition designated from the advertiser terminal 30 (here, “date and time: 2006/11/10 AND keyword: soccer”). The advertiser ID, date / time information, keyword, bid amount, and bid price related to the information are displayed in a list.

  Note that all or part of the placement information stored in the placement information DB 22 is periodically provided to the advertisement server 16 by the bid management server 20. The advertisement server 16 sequentially stores in the advertisement information DB 18 the placement information provided periodically from the bid management server 20, particularly the advertisement information placed by the advertiser, the keyword and date / time information associated with the advertisement information. FIG. 6 is a diagram illustrating an example of information stored in the advertisement information DB 18. As shown in the figure, the advertisement information DB 18 stores an advertiser ID, date / time information, keywords, advertisement information, a bid amount, and the like in association with an advertisement ID for identifying the advertisement information.

  On the other hand, when obtaining a search result of web information in the information search system 10, the user inputs a search keyword using the user terminal 28 and transmits the search keyword to the information search server 12.

  FIG. 7 is a diagram illustrating an example of a web search page displayed on the web browser of the user terminal 28. This page is provided from the information search server 28 in response to a request from the user terminal 28. As shown in the figure, this page includes a text input field for inputting a search keyword. In the same page, when the user inputs one or more search keywords in the text input field and clicks a “search” button with a pointing device such as a mouse connected to the user terminal 28, the input search keywords are stored in the information search server 12. Sent to. The search result output CGI program of the information search server 12 is associated with the “search” button, and clicking this button starts the search result output CGI program in the information search server 12, and the CGI program The one or more search keywords are passed as an argument.

  When the search result output CGI program is started in the information search server 12, the information search server 12 reads the web information that matches the search keyword passed as an argument of the CGI program from the web information DB 14, and Web information is sorted according to a predetermined algorithm in descending order of relevance with a search keyword.

  In addition, the information search server 12 receives from the advertisement information DB based on the search keyword and the date and time when the search was executed (date and time when the search result output CGI program was started) in response to the start of the search result output CGI program. In order to acquire the advertisement information, the search keyword and the search execution date / time are transmitted to the advertisement server 16. The advertisement server 16 reads one or more advertisement information and date / time information associated with each advertisement information from the advertisement information DB 18 based on the search keyword and the search execution date / time received from the information search server 12, and the information search server Reply to 12. Next, the information search server 12 determines the posting mode of each acquired advertisement information according to the search execution date and time information related to each advertisement information acquired from the advertisement server 16.

  Then, the search result output CGI program of the information search server 12 is a web search result posting page on which the advertisement information acquired from the advertisement server 16 in the determined posting mode is posted together with the search results sorted in the order of the relevance. Is sent back to the user terminal 30.

  FIG. 8 is a diagram illustrating an example of a web search result posting page displayed on the web browser of the user terminal 28. As shown in the figure, the advertisement information related to the search keyword and the search execution date and time is noticed by the user together with the search result of the web information by the search keyword (here, “JPOP”). It is posted in an easy manner. That is, an “advertising frame with date” is provided on the right side of the search result, and the keyword that matches the search keyword and the search execution date (here, November 20) are both the same date. A list of associated advertisement information is posted, and a link to a page on which advertisement information associated with a date after the next day (in this case, after November 21) is posted is arranged below the list. Below that, there is an “advertising area for sponsor sites” separate from the “advertising space with date”, where conventional search-linked advertisements are placed.

  9, 10, and 11 are diagrams illustrating other examples of the web search result posting page displayed on the web browser of the user terminal 28. As shown in these drawings, the advertisement information associated with the date after the predetermined date from the search execution date may be placed in a “calendar frame” that is distinguished from the “date-placed advertisement placement frame”. For example, the advertisement information associated with the date after the search execution date (after November 21) is “calendar frame (each calendar frame in the calendar format table) provided under the“ date ad placement frame with date ”. ) ”(FIG. 9), or a page (dialog that pops up when the mouse cursor is hovered over the string“ View ads after ”placed on the page containing the search results. , Window) (see Fig. 10), or a calendar service site linked from the string "See advertisements after" placed on the page containing the search results. May be posted in a “calendar frame” (FIG. 11). In particular, in the “calendar frame” shown in FIG. 11, when the user is logged in to the calendar service, both the advertisement information and the schedule information registered by the user are displayed. Further, advertisement information linked to the schedule information registered by the user may be further displayed in the frame.

  Each advertisement information is associated with the advertisement site, and when the advertisement information is clicked, after the CGI program for click charge processing in the bid management server 20 is started, the advertisement information is redirected to the linked advertisement site. ing.

  In this way, in the information search system 10, even if the user performs a web search without specifying the date and time as a search keyword, a limited-time advertisement related to the search keyword and the search execution date and time is displayed together with the search result. Appropriately appear on the search results page.

  Below, in order to implement | achieve the said function, the structure with which the information search server 12 and the advertisement server 16 are provided is demonstrated in detail.

  FIG. 12 is a functional block diagram of the information search server 12. As shown in the figure, the information search server 12 includes a web information collection unit 32, a web information search unit 34, an advertisement information acquisition unit 36, a placement mode determination unit 38, and a search result output unit 40. These functions are realized by executing a CGI program or a resident program in the information search server 12.

  The web information collection unit 32 is realized by, for example, a resident program, and periodically collects web information such as text information, image information, link information and the like released by a plurality of other web servers connected to the Internet 26. Then, the collected web information is accumulated in the web information DB 14, or the old web information stored in the web information DB 14 is updated with the collected web information. Further, in order to be able to search a plurality of web information stored in the web information DB 14 at high speed, the web information is indexed by a predetermined index construction algorithm (for example, a B-tree index or a bitmap index).

  In response to the activation of the search result output CGI program, the web information search unit 34 searches the web information DB 14 for web information that matches the search keyword passed as an argument of the CGI program. Further, the searched web information (search result) is sorted in descending order of the degree of association with the search keyword according to a predetermined algorithm.

  The advertisement information acquisition unit 36 is based on the search keyword passed as an argument of the CGI program and the search execution date (date and time when the search result output CGI program was started) in response to the start of the search result output CGI program. Thus, the advertisement information and date / time information related to the advertisement information are acquired from the advertisement information DB 18. Specifically, the search keyword and the search execution date and time are transmitted to the advertisement server 16, and one or more pieces of advertisement information and date and time information related to each advertisement information are acquired as a response. The advertisement information acquired in this way is read from the advertisement information DB 18 based on not only the search keyword but also the search execution date / time by the advertisement information search unit 44 of the advertisement server 16 described later.

  The placement mode determination unit 38 determines the placement mode of each advertisement information acquired by the advertisement information acquisition unit 36 according to the search execution date and time information related to each advertisement information acquired by the advertisement information acquisition unit 36. Is. Specifically, the posting mode of each advertisement information is determined based on the time difference obtained by subtracting the search execution date from the date information related to each advertisement information. For example, the placement mode determination unit 38 may determine the placement rank of each advertisement information based on the time difference. That is, the highest ranking is given to the advertisement information (current advertisement information) in which the time difference (date difference may be zero) is zero, and the advertisement information (future advertisement information) in which the time difference is a positive value is given. Ranking is given so that the time difference is in ascending order. In this way, the advertisement information is posted in the order in which the advertisement period goes from the present to the future, so that the limited-time advertisement associated with the date and time closer to the search execution date is more likely to be noticed by the user. When the date and time information associated with the advertisement information is indicated by a period, the time difference may be calculated based on the first day of the period, may be calculated based on the last day, or may be calculated based on the middle day. It may be calculated.

  Further, the placement mode determination unit 38 may determine the placement mode of each advertisement information acquired by the advertisement information acquisition unit 36 based on whether or not each time difference is equal to or less than a predetermined value. Specifically, it may be determined that the advertisement information whose time difference is less than or equal to a predetermined value is posted on a page including a search result, and the advertisement information whose time difference exceeds a predetermined value is posted on another page. For example, as shown in FIG. 8, a list of advertisement information associated with the same date as the search execution date (in the figure, assumed to be November 20) is placed immediately next to the search result and placed below it. The advertisement information associated with the date after the next day (after November 21 in the figure) is posted on the page displayed by clicking the link. This makes it possible for a limited-time advertisement associated with a date and time close to the search execution date to be more easily noticed by the user than other advertisements.

  Furthermore, the posting mode determination unit 38 may determine that the advertisement information whose time difference exceeds a predetermined value is posted in a calendar format. For example, advertisement information associated with a date and time within 3 days from the search execution date is posted in a list form arranged in a line from the top to the bottom within the “date ad placement frame”, and the date and time that is more than 4 days away from the search execution date The advertisement information associated with is collectively posted in the “calendar frame” (see FIGS. 9, 10, and 11). In this way, a limited-time advertisement associated with a date close to the search execution date can be posted in a format that is more visible to the user than many other advertisements posted in a calendar format.

  The search result output unit 40 is realized by a search result output CGI program, and is acquired by the sorted web information (search result) acquired by the web information search unit 34 and the advertisement information acquisition unit 36. HTML data including the advertisement information is generated and returned as a web search result posting page (see FIG. 8) to the user terminal 28 that is the starting source of the search result output CGI program. The HTML data is configured such that the advertisement information acquired by the advertisement information acquiring unit 36 is posted on the web browser of the user terminal 28 in the posting mode determined by the posting mode determining unit 38. For this reason, even if the user does not specify the date and time as a search keyword when searching for web information, a limited-time advertisement related to the search keyword and the search execution date and time is displayed on the user terminal 28 together with the search result by the search keyword. Appropriately displayed in a web browser.

  FIG. 13 is a functional block diagram of the advertisement server 16. As shown in the figure, the advertisement server 16 includes a placement information receiving unit 42, an advertisement information search unit 44, and an advertisement information output unit 46. These functions are realized by executing a resident program, a scheduled activation program, or the like in the advertisement server 16.

  The placement information receiving unit 42 receives the placement information including the advertiser ID, date / time information, keyword, advertisement information, bid amount, etc. from the bid management server 20, and associates them with the advertisement ID as shown in FIG. This is stored in the DB 18.

  The advertisement information search unit 44 reads one or a plurality of advertisement information and date / time information related to each advertisement information from the advertisement information DB 18 based on the search keyword and the search execution date / time transmitted from the information search server 12. is there. For example, advertisement information associated with both a keyword that matches the search keyword and a date that matches the search execution date may be read, or the advertisement information that is associated with the same keyword as the search keyword, after the search execution date and time The advertisement information associated with the date and time may be read out. Further, advertisement information including a search keyword may be read out from advertisement information associated with a date and time within a predetermined time from a search execution date and time. The advertisement information and date / time information read out in this way are output to the information search server 12 by the advertisement information output unit 46.

  Here, an example of the operation of the information search server 12 will be described. FIG. 14 is a flowchart showing web search result output processing by the search result output CGI program of the information search server 12. The process shown in the figure is executed when the user performs a web information search operation on the user terminal 28. When this process is started, the information search server 12 acquires the search keyword passed as an argument from the user terminal 28 when the search result output CGI program is activated (S200). Then, web information matching the acquired search keyword is searched from the web information DB 14 (S202), and the searched web information (search result) is sorted in descending order of relevance with the search keyword (S204).

  Next, the information search server 12 acquires the date and time when the search result output CGI program was activated as the search execution date and time (S206). Then, based on the search keyword acquired in S200 and the search execution date acquired in S206, one or a plurality of advertisement information and date / time information related to each advertisement information are acquired from the advertisement information DB 18 via the advertisement server 16. (S208). Then, according to the search execution date and time acquired in S206 and the date and time information related to each advertisement information acquired in S208, the posting mode of each advertisement information acquired in S208 is determined (S210). For example, in order to make a ticket that is released on the search execution date or an advertisement of an event held on the search execution date more prominent than other advertisements, the advertisement information associated with the same date as the search execution date is used as the search result. The advertisement information associated with the date after the search execution date is posted on a page other than the first page. Finally, HTML data is generated so that the advertisement information acquired in S208 is posted in the posting mode determined in S210 along with the sorted search results acquired in S204 (S212), and is used as a web search result posting page. It returns to the user terminal 28 (S214).

  According to the information search system 10 described above, a limited-time advertisement related to the search keyword and the search execution date and time can be posted together with the search result in such a manner that it is more easily noticed by the user than other advertisements. .

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation implementation is possible. For example, in the above description, an example in which a plurality of servers (information search server 12, advertisement server 16, and bid management server 20) distribute search-linked advertisements in cooperation with each other has been described. May be realized by any server. The present invention is applicable not only to a network environment but also to a stand-alone environment (one computer).

  In the above embodiment, the advertisement information DB 18 stores the advertisement information in association with the keyword and the date / time information. However, the advertisement information associated with only the keyword (not associated with the date / time information) is further stored. May be. In this case, the advertisement information is acquired from the advertisement information DB 18 based only on the search keyword, and among the acquired advertisement information, for example, the advertisement information associated with the search execution date is posted at the top and associated with the date / time information. It is only necessary to make advertisements for a limited time more easily noticed by the user, for example, by placing advertisement information that has not been posted below.

  In the above embodiment, an information search system for searching for web information has been exemplified. However, the present invention is widely applicable to systems for searching for information other than web information (for example, event information, book information, etc.). Is possible.

1 is an overall configuration diagram of an information search system according to an embodiment of the present invention. It is a figure which shows an example of an advertisement placement screen. It is a figure which shows an example of the publishing information memorize | stored in publishing information DB. It is a figure which shows an example of a bid management screen. It is a figure which shows an example of a bid condition confirmation screen. It is a figure which shows an example of the information memorize | stored in advertisement information DB. It is a figure which shows an example of a web search page. It is a figure which shows an example of a web search result publication page. It is a figure which shows an example of a web search result publication page. It is a figure which shows an example of a web search result publication page. It is a figure which shows an example of a web search result publication page. It is a functional block diagram of an information search server. It is a functional block diagram of an advertisement server. It is a flowchart which shows a web search result output process.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Information search system, 12 Information search server, 14 Web information DB, 16 Advertisement server, 18 Advertisement information DB, 20 Bid management server, 22 Placement information DB, 24 Advertiser DB, 26 Internet, 28 User terminal, 30 Advertiser terminal , 32 Web information collection unit, 34 Web information search unit, 36 Advertisement information acquisition unit, 38 Placement mode determination unit, 40 Search result output unit, 42 Placement information reception unit, 44 Advertisement information search unit, 46 Advertisement information output unit

Claims (11)

Advertising information acquisition means for acquiring one or a plurality of advertising information from advertising information storage means for storing the advertising information in association with the keyword and date information based on the search keyword and the search execution date;
Search result output means for outputting the advertisement information acquired by the advertisement information acquisition means together with the search result by the search keyword;
An information retrieval system comprising: The information search system according to claim 1,
The advertisement information acquisition means further acquires date and time information relating to each of the one or more advertisement information from the advertisement information storage means,
According to the search execution date and each date information acquired by the advertisement information acquisition means, further includes a posting mode determination means for determining a posting mode of each advertisement information acquired by the advertisement information acquisition means,
The search result output means outputs advertisement information acquired by the advertisement information acquisition means in a posting aspect determined by the posting aspect determination means.
An information retrieval system characterized by that. The information search system according to claim 2,
The posting mode determination unit determines a posting mode of each advertisement information acquired by the advertisement information acquisition unit based on a time difference between the search execution date and time information acquired by the advertisement information acquisition unit.
An information retrieval system characterized by that. In the information search system according to claim 3,
The placement mode determining means determines the ranking of each advertisement information acquired by the advertisement information acquiring means based on the time difference.
An information retrieval system characterized by that. In the information search system according to claim 3 or 4,
The placement mode determining means determines the placement mode of each advertisement information acquired by the advertisement information acquisition means based on whether each time difference is a predetermined value or less.
An information retrieval system characterized by that. The information search system according to claim 5,
The posting mode determination means determines that the advertisement information whose time difference is equal to or less than the predetermined value is posted on a page including the search result, and the advertisement information whose time difference exceeds a predetermined value is posted on another page.
An information retrieval system characterized by that. The information search system according to claim 5 or 6,
The posting mode determining means determines to publish the advertisement information in which the time difference exceeds the predetermined value in a calendar format.
An information retrieval system characterized by that. In the information search system according to claim 3,
The posting mode determining means determines to publish the advertisement information whose time difference is within a predetermined range in a calendar format.
An information retrieval system characterized by that. Advertising information acquisition means for acquiring one or a plurality of advertising information from advertising information storage means for storing the advertising information in association with the keyword and date information based on the search keyword and the search execution date;
Search result output means for outputting the advertisement information acquired by the advertisement information acquisition means together with the search result by the search keyword;
An information retrieval apparatus comprising: An advertisement information acquisition step of acquiring one or a plurality of advertisement information from an advertisement information storage means for storing the advertisement information in association with the keyword and the date and time information based on the search keyword and the search execution date and time;
Outputting the advertisement information acquired by the advertisement information acquisition means together with the search result by the search keyword;
An information search result output method comprising: Based on the search keyword and search execution date and time, advertisement information acquisition means for acquiring one or a plurality of advertisement information from advertisement information storage means for storing advertisement information in association with the keyword and date and time information, and a search result by the search keyword And search result output means for executing processing for outputting the advertisement information acquired by the advertisement information acquisition means,
As a program to make the computer function.

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