KR101010440B1 - Method for providing searching service and searching server for the searching service - Google Patents

Abstract

A search service providing method and a search server are disclosed. The search service providing method for achieving the technical problem is a search server receives a search keyword and a search request signal from a web client, in response to the received search request signal to perform a search based on the search keyword, the searched web Selecting a first web document of any one of the documents, and transmitting information about the selected first web document to the web client.

Description

Search service providing method and a search server for the search service {Method for providing searching service and searching server for the searching service}

The present invention relates to a search service providing method and a search server for providing the search service. More specifically, when a user inputs a search keyword and performs a search, the search list does not appear as a search result, but any one of the search results is a result. The present invention relates to a search service providing method and a search server.

With the development of Internet technology, the Internet, called the sea of information, allows users to collect a myriad of useful information. There is a search service as a means of collecting this useful information.

1 and 2 are diagrams for explaining a conventional search service providing method.

Referring to FIGS. 1 and 2, a conventional search service providing method is as follows. As illustrated in FIG. 1, a user may access a web site that provides a search service through a web client installed in his terminal (eg, a computer). In the web site, a user may enter a search keyword of his or her desired text in the text box 10 and transmit a search request signal to a search server (not shown) that provides the web site. The search request signal may be output to the search server by selecting (eg, clicking) the button-type interface 20 as shown in FIG. 1.

For example, the user may perform a search with a search keyword of 'flower delivery'. Then, the search result as shown in FIG. 2 may be displayed in the web client. As shown in FIG. 2, when a search is performed using a search keyword of 'flower delivery', a search list 31 to 36 indicating a search result may be displayed on a web client.

The search list 31 to 36 includes a link 31 to 34 of an advertiser site displayed when a search is performed with the keyword 'flower delivery', or a link to a site including or related to the keyword 'flower delivery' among web sites. (35), and / or links 36 of images associated with 'flower delivery', and the like. Of course, in addition, files and videos related to the search keyword 'flower delivery' may be included in the search list. Each link may contain brief information about the corresponding site.

As described above, according to the conventional search service providing method, when a user searches by a search keyword, a search list is displayed on the web client. The user then selects one of the search lists to search for the desired information.

In most cases of using the search service, the brief information of the sites included in the search list does not know whether the information desired by the user is included or whether the site can perform a desired function. Therefore, the user had to select any link among the links included in the search list and check the information corresponding to the direct link. Eventually, the user selects one of the links included in the search list (e.g., clicks) to see if the site corresponding to the selected link is the site the user wants; otherwise, selects another link from the search list again. There is discomfort.

In addition, if it is irrelevant to which site is the user providing the 'flower delivery' service, it is very inefficient to provide a search list to the user to select any one of them, and it does not consider the user's convenience. There is a drawback to not doing it.

In addition, the advertisement using a conventional search keyword used a method of determining the position where the advertisement link is displayed through a bid. For example, the company that pays the most money for the keyword 'flower delivery' ('company A' in FIG. 2) is displayed in the most effective position (eg, the highest of the advertisement links). However, since the displayed position is a very limited resource as long as the size of the web client is fixed, the advertiser has to pay a lot of money to use this limited resource.

Therefore, there is an urgent need for a search service providing method and a search server therefor that can solve the above problems.

The technical problem to be achieved by the present invention is not to provide a search list to a user and to select one of the search results when the user performs a search, but to directly search a specific site or document among the search results by a predetermined criterion. It is to provide a device that can be provided to.

In addition, when the advertisement link is displayed for each keyword, the advertiser site is not loaded when the user performs a search, rather than determining the position where the advertisement link is displayed through a bid as in the conventional method. The present invention provides a search service providing method and a search server capable of determining an exposure probability of an advertiser's site to be loaded through bidding.

The search service providing method for achieving the technical problem is a search server receives a search keyword and a search request signal from a web client, in response to the received search request signal to perform a search based on the search keyword, the searched web Selecting a first web document of any one of the documents, and transmitting information about the selected first web document to the web client.

The web documents may include at least one of a code, a document file, or a multimedia file corresponding to a web site.

The selecting of the first web document of the searched web documents by the search server may include selecting the first web document based on location information of a terminal of a user on which the web client is installed among the searched web documents. It may include a step.

The step of selecting the first web document based on location information of the terminal of the user may include determining information on an area in which the terminal of the user is located based on location information of the terminal of the user and determining the terminal of the user. The method may include selecting the first web document based on information about a region where is located and information about a region corresponding to each of the web documents included in the searched web documents.

The determining of the information on the region where the terminal of the user is located based on the location information of the terminal of the user may include determining information on the region where the terminal of the user is located based on IP information of the terminal of the user. Or determining based on information about a region where the terminal of the user is previously inputted from the user.

The selecting of the first web document of any one of the searched web documents by the search server may include selecting the first web document based on information about the user among the searched web documents. .

The step of selecting the first web document from the searched web documents based on the information about the user may include extracting information about the user from a user DB and the first information corresponding to the extracted information about the user. The web document may include selecting from among the searched web documents.

The information on the user may include at least one of information about the age, gender, address, or occupation of the user.

The selecting of the first web document of any one of the searched web documents by the search server may include selecting each of the searched web documents in a predetermined order, and selecting the first web document in order. It may include.

The search service providing method may further include transmitting a second web document except the first web document among the searched web documents to the web client in response to the additional information request signal output from the web client. have.

The selecting of the first web document may include selecting the first web document based on an exposure probability corresponding to the search keyword assigned to each of the web documents.

The search service providing method includes the step of receiving a bid for the exposure probability corresponding to the search keyword from the manager terminal of each of the web documents and the exposure corresponding to the search keyword to each of the web documents based on a bid result. The method may further include assigning a probability.

The search service providing method may further include transmitting a search result list corresponding to the web documents except the first web document to the web client. The search service providing method may be stored in a computer readable recording medium recording a program.

The search server for achieving the technical problem includes a control module for receiving a search keyword and a search request signal from a web client, and a search engine for performing a search based on the search keyword under the control of the control module. The module selects a first web document of any one of the web documents retrieved by the search engine and transmits information about the selected first web document to the web client.

The control module may transmit to the web client a second web document except for the first web document among the searched web documents in response to the additional information request signal output from the web client.

The control module may select the first web document based on an exposure probability corresponding to the search keyword assigned to each of the web documents.

The control module may select the first web document from the searched web documents based on the location information of the terminal of the user where the web client is installed.

The control module may select the first web document from the searched web documents based on information about the user.

The control module may select each of the retrieved web documents in a predetermined order.

The search server receives a bid for the exposure probability corresponding to the search keyword from a manager terminal of each of the web documents, and assigns the exposure probability corresponding to the search keyword to each of the web documents based on a bid result. It may further include a bidding module for.

The control module may transmit a search result list corresponding to the web documents except the first web document to the web client.

In the search service providing method and the search server according to an exemplary embodiment of the present invention, a search list is not provided when a search is performed, but any web document (eg, a web site, a file, etc.) corresponding to a search result is directly loaded. If the loaded web document is what the user wants, the search can be completed much more quickly and easily.

Also, if the loaded web document is not what the user wants or is unsatisfied, instead of going back to the search list and selecting another link again, if the specific action (for example, pressing a specific key or clicking a specific button) causes the current web document You can go directly to other web documents in, which makes the search easy and fast.

In addition, in order to compensate for the fact that the minimum information on the site to be searched is known in advance by using the brief information included in the search list, which may be an advantage of the conventional search method, other than the currently loaded web document among the search results. The search result of may provide additional information so that there is no inconvenience for the user.

In addition, when the search service providing method according to an exemplary embodiment of the present invention is used for an advertisement for each keyword, the probability of loading first, that is, an impression probability, may be bid instead of a limited position for displaying a limited resource. Even if there are a lot of people who want to advertise, they can all enjoy some degree of advertising effect, and there is also an effect that can reduce advertising costs.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Also, in this specification, when any one element 'transmits' data to another element, the element may transmit the data directly to the other element, or may be transmitted through at least one other element And may transmit the data to the other component.

Conversely, when one element 'directly transmits' data to another element, it means that the data is transmitted to the other element without passing through another element in the element.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

3 is a schematic structural diagram of a search server according to an exemplary embodiment of the present invention.

Referring to FIG. 3, the search server 100 according to an embodiment of the present invention includes a control module 110 and a search engine 120. The search server 100 may further include a bid module 130.

Each component of the search server 100 is separately shown in the drawings to indicate that it may be functionally and logically separated, and does not necessarily mean that the components are physically separate components or implemented as separate codes.

In the present specification, the module may mean a functional and structural combination of hardware for performing the technical idea of the present invention and software for driving the hardware. For example, the module may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and means a physically connected code or does not necessarily mean one kind of hardware. It can be easily inferred by the average expert in the art.

The control module 110 may control a data flow for implementing a search service providing method according to an embodiment of the present invention, perform a necessary operation, and control / control a resource accordingly.

The control module 110 may receive a search keyword and a search request signal from a web client (eg, a web browser). Of course, the search keyword and the search request signal may be received by the control module 110 through a predetermined interface module (not shown). As shown in FIG. 1, the search request signal may be output to the search server 100 when the user presses a 'search' button or presses a specific key. In addition, the web client may be used as a meaning including not only a web browser but also a program and / or a user interface (UI) in which a user can input a search keyword and output the search keyword to the search server 100. .

Then, the control module 110 may output the received search keyword to the search engine 120, and the search engine 120 performs a search based on the received search keyword. The search target of the search engine 120 may include a predetermined database (Database) collocated with the search engine 120 as well as the Internet. In addition, it is well known that the search engine 120 may perform a search faster by using a predetermined index DB that is held in advance.

Then, the control module 110 may select one of the first web documents among the web documents searched by the search engine 120. The web documents searched by the search engine 120 may include an advertisement link (or a site, a document, etc.) set to correspond to the search keyword.

In the present specification, a web document is a combination of codes (files) such as html, xhtml, script, and flash corresponding to a web site, or a file (eg, .hwp, .doc, .pdf, etc.) written in a word processor, multimedia It may be used to include a file (eg, image, audio, video, etc.). Accordingly, the first web document may mean a web site, a document file, and / or a multimedia file of any one of the search results.

Thereafter, the control module 110 may transmit information about the selected first web document to the web client. The web client may then load (browsing) the first web document based on the received information.

As a result, according to the method of providing a search service according to an embodiment of the present invention, a user may not be provided with a search result search list but may immediately load any one web document corresponding to the search result. Therefore, any web document (e.g., a website, a file, etc.) corresponding to the search result is loaded directly, so if the loaded web document is desired by the user, rather than randomly selecting one web document from the search list. This has the effect of completing the search much more quickly and easily.

4 is a diagram illustrating a search result according to a search service providing method according to an exemplary embodiment of the present invention.

For example, as shown in FIG. 1, when the user searches with the keyword 'flower delivery', the search result list is shown in FIG. 2 according to the method of providing a search service according to an embodiment of the present invention. The web document of any one of the search results (eg, the search results as shown in FIG. 2) may be loaded directly as shown in FIG. 4 rather than displayed in the web client of FIG.

In addition, the control module 110 receives information on the search result list from the search engine 120, and receives information on the first web document (website information of 'A company') from the search result list. The excluded search result list 40 may be further provided to the web client. For example, as shown in FIG. 4, the control module 110 may provide the search result list to be displayed at a predetermined position of the web client. Of course, the search result list 40 excluding the information about the first web document may be displayed at a predetermined position of a web client where the first web document is displayed as shown in FIG. 4 or a separate interface (eg, a separate interface). Window). Accordingly, the search result list 40 may also be provided by the search service providing method according to an exemplary embodiment of the present invention. Therefore, the search results other than the first web document currently loaded among the search results may be additionally provided with brief information, thereby preventing the user from inconvenience.

In addition, even if the search result list 40 is not provided, when the loaded web document is not desired or satisfactory by the user, instead of going back to the search list and selecting another link again as in the conventional search method, According to a method of providing a search service according to an exemplary embodiment of the present invention, when a user performs a specific action (for example, pressing a specific key or clicking a specific button), the user may move directly from the currently loaded first web document to another web document. You can also proceed quickly and easily.

To this end, the control module 110 may transmit a second web document except the first web document among the searched web documents to the web client in response to the additional information request signal output from the web client. The additional information request signal may be transmitted to the search server 100 when a user selects a predetermined button type interface provided at a site provided by the search server 100 according to an exemplary embodiment of the present invention. The second web document may mean any web document except the first web document among the web documents searched by the search engine 120. In addition, when information about the second web document is transmitted to the web client, the web client may load the second web document on the same interface as the interface (eg, window) on which the first web document is loaded or on a separate interface. You can also load it.

For example, in FIG. 4, when a user clicks a button (not shown) called 'view other results', a web document as shown in FIG. 5 may be loaded.

5 is a diagram illustrating another result screen of a search service providing method according to an exemplary embodiment of the present invention.

Referring to FIG. 5, when the user selects a 'view other results' button (not shown) in a state as shown in FIG. 4 (that is, a state in which the first web document is loaded), the user may select among the web documents of the search results. A second web document (eg, site information of 'company B') may be loaded except for the first web document. In order to select the second web document, the control module 110 may arbitrarily select the second web document among the documents other than the first web document among the web documents. The second web document may be selected based on the probability of exposure.

In addition, when the search result list 50 is additionally provided, information about web documents other than the second web document among the web documents may be provided to the search result list 50. According to an embodiment, the search result list 50 does not exclude only the link to the web document currently being loaded (ie, the second web document) from the search result list 50, but all web documents that have already been loaded. (Ie, the first web document and the second web document) may be excluded from the search result list 50.

FIG. 6 is a diagram for describing web document selection criteria of a search service providing method according to an exemplary embodiment of the present invention.

Referring to FIG. 6, in order for the control module 110 to select the first web document (eg, information on a site of 'A company') among the web documents searched by the search engine 120, a search result may be used. Although the first web document may be randomly selected from information on web documents (eg, 'company A', 'company B', 'company C', 'company D', etc.), a predetermined selection criterion, The first web document may be selected based on an exposure probability corresponding to the search keyword ('flower delivery').

For example, if the search keyword is 'Flower Delivery', 30% chance of 'A Company' site is exposed, 20% chance of 'B Company' site is exposed, and 'C Company' site is exposed 20% and 30% probability that the 'D' company's site is exposed. Then, if the search is performed 10 times with the search keyword 'flower delivery', the control module 110 selects a site of 'company A' as the first web document about 3 times, and the 'company B' The number of times of selecting a site may be about 2 times, the number of times of selecting a site of 'C company' may be about 2 times, and the number of times of selecting a site of 'D company' may be about 3 times.

In addition, the exposure probability that the second web document is selected when the first web document is selected by the keyword 'flower delivery' is selected and the 'view other results' is performed by the user is the exposure probability when the first web document is selected. It can be assigned separately from the probability.

The information on the exposure probability for each keyword may be stored to correspond to an advertiser site stored in the advertisement DB (not shown) when the search server 100 includes a predetermined advertisement DB (not shown).

On the other hand, the exposure probability as described above may be assigned by a predetermined bidding method. To this end, the search server 100 may further include a bid module 130. The bid module 130 receives a bid for the exposure probability corresponding to the search keyword from a manager terminal (not shown) of each of the web documents, and applies the search keyword to each of the web documents based on a bid result. A corresponding exposure probability can be assigned.

For example, when four companies (A, B, C, D companies) bid on the search keyword 'flower delivery', the exposure probability may be allocated as shown in FIG. 6 according to the ratio of the bid amount. . In addition, the probability that the second web document is exposed may be provided in the form of a bid by a predetermined method. Of course, the bidding method may vary depending on the implementation.

Accordingly, the search service providing method according to an exemplary embodiment of the present invention may bid the probability of loading first, that is, the exposure probability, rather than bidding the position to be displayed which is a limited resource as in the conventional keyword advertisement. In the case of the conventional method, when the position to be displayed is considerably subordinated, there is a significant case in which the advertising effect is virtually negligible even though the advertising cost is actually paid. This is because a user often selects only a few links of an advertisement position (for example, the top of the advertisement position) and ends the search. However, according to the method of providing a search service according to an embodiment of the present invention, since the advertisement site is loaded by the exposure probability, the exposure probability can be guaranteed to be exposed to the user. Therefore, even if there are many people who want to advertise, all of them can enjoy a certain degree of advertisement effect, and there is also an effect that can reduce the advertising cost because it does not have to bid competitively for display position, which is a limited resource.

Meanwhile, in the present specification, the method of selecting the first web document based on the probability of exposure described above may be equally applicable to not only selecting an advertisement site but also a web search targeting a general internet domain except for an advertisement. Of course. In this case, the exposure probability may be arbitrarily set in the search server 100. For example, a web document with many visits by a user may be automatically applied, such as increasing the exposure probability, or allocating a uniform exposure probability of all searched web documents.

On the other hand, according to another embodiment of the present invention, the control module 110 is the first web document (for example, information on the site of 'A company') of the web documents searched by the search engine 120 To make a selection, based on the location information of the user's terminal where the web client is installed among the information about the search result web documents (eg, 'A', 'B', 'C', 'D', etc.) It may be based on the characteristics of the user or based on sequential criteria.

For example, the reference for selecting the first web document from among the searched web documents by the control module 110 may be based on location information of a terminal of a user where a web client is installed.

For example, the control module 110 may know information about a region where the terminal of the user is located based on IP information of the terminal of the user and / or the web client. Alternatively, in the case of subscribing to a predetermined service in order to use the search service providing method according to an exemplary embodiment of the present invention, information about an area in which the user's terminal is located or information about the address of the user is received from the user in advance. To know the location information of the user's terminal. Information received from the user may be stored in a separate user DB (not shown).

After determining or acquiring the location information of the user's terminal as described above, the control module 110 selects the first web document based on the information about the region corresponding to each of the web documents included in the searched web documents. Can be. Information about a region corresponding to each of the web documents included in the web documents may be stored in advance in the search server 100 or may be checked in real time by the search server 100.

For example, when the addresses of flower delivery companies A, B and C are stored in advance in the search server 100 or the search server 100 displays the locations of flower delivery companies A, B and C in real time. If it can be determined, the control module 110 may select a flower delivery company located in the same or the nearest local area where the user terminal is located.

Therefore, when the user inputs a search keyword of flower delivery in the first region, the web site of the A company located in the first region or the closest to the first region may be browsed. In addition, when the user inputs a search keyword of flower delivery in the second region, the web site of the B company located in the second region or the closest to the second region may be browsed.

On the other hand, according to the search service providing method according to an embodiment of the present invention, the web document browsed based on the search keyword input by the user may be different for each user. That is, the first web document selected by the control module 110 may be different based on the information about the user.

For example, a user who subscribes to a service for providing a search service providing method according to an exemplary embodiment of the present invention may predetermine information regarding his or her characteristics (eg, age, height, occupation, gender, taste, address, etc.) in the search server. (100) or the like. Of course, if you are a non-subscriber of the service, you can enter information about yourself every time.

Then, the input information about the user may be stored in a user DB (not shown). Then, when the user inputs a predetermined search keyword through the terminal of the user, the control module 110 may extract information about the user from the user DB (not shown).

Then, the control module 110 generates a web document based on the extracted information about the user, the web documents searched by the search engine 120, and additional information of each web document included in the web documents. You can choose.

For example, when a user inputs address information of 'flower delivery', the control module 110 may extract information about the age of the user from information stored in a user DB (not shown). As a result, it is assumed that the control module 110 knows that the user is in his twenties. Meanwhile, the control module 110 may search web documents (eg, web sites of A, B, and C companies) corresponding to a search keyword of 'flower delivery'. In addition, the search server 100 further stores predetermined additional information that a company A's website is mainly a 20's preferred website, a B company is a 30's preferred website, and a C company is a 40's preferred website. There may be. Then, the control module 110 may select a web site of A company among the web documents as the first web document. Of course, the subjects of the A company, the B company, and the C company may predefine the characteristics (eg, age, occupation, gender, etc.) of the user as their main target.

Methods or criteria for selecting one web document from among web documents searched by the control module 110 based on a user's characteristics may vary, and information about the criteria may be stored in advance in the control module 110. Can be.

Of course, the control module 110 may select each of the web documents included in the web document set corresponding to the specific address information in a predetermined order.

As described above, the search server 100 according to an embodiment of the present invention provides a technical idea of mapping a search keyword and a web document corresponding to the search keyword to 1: N. The search server 100 may select any one of the N web documents mapped to a specific search keyword.

The search service providing method according to an exemplary embodiment of the present invention may be implemented as computer readable codes on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include USB storage devices, ROMs, RAM, CD-ROMs, magnetic tapes, hard disks, floppy disks, optical data storage devices, and the like. Transmission). The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 and 2 are diagrams for explaining a conventional search service providing method.

3 is a schematic structural diagram of a search server according to an exemplary embodiment of the present invention.

4 is a diagram illustrating a search result according to a search service providing method according to an exemplary embodiment of the present invention.

5 is a diagram illustrating another result screen of a search service providing method according to an exemplary embodiment of the present invention.

FIG. 6 is a diagram for describing web document selection criteria of a search service providing method according to an exemplary embodiment of the present invention.

Claims (22)

A search server receiving a search keyword and a search request signal from a web client; Performing a search based on the search keyword in response to the received search request signal, and selecting, by the search server, any one of the searched web documents; And And transmitting the information about the selected first web document to the web client. The method of claim 1, wherein the web documents, A search service providing method comprising at least one of a code, a document file, or a multimedia file corresponding to a web site. The method of claim 1, wherein the selecting of the first web document of the searched web documents by the search server comprises: Selecting the first web document from among the searched web documents based on location information of a terminal of the user where the web client is installed and information on a region corresponding to each of the searched web documents. . The method of claim 3, wherein the selecting of the first web document is based on location information of the user's terminal and information on a region corresponding to each of the retrieved web documents. And selecting the first web document corresponding to a company located in the same region or the shortest distance as the region in which the user's terminal is located based on the location information of the user's terminal. The method of claim 4, wherein the area where the user's terminal is located, Determined based on IP information of the terminal of the user; Search service providing method, characterized in that determined based on the information about the area where the terminal of the user is previously input from the user. The method of claim 1, wherein the selecting of the first web document of the searched web documents by the search server comprises: And selecting the first web document from among the searched web documents based on information on a user who requested a search and preference information corresponding to each of the searched web documents. The method of claim 6, wherein the first web document is selected based on information about a user who requested a search from among the searched web documents and preference information corresponding to each of the searched web documents. Extracting information about the user from a user DB; And And selecting the first web document having preference information corresponding to the extracted information about the user from among the searched web documents. The method of claim 6, wherein the information about the user, Search service providing method comprising at least one of information about the age, gender, address, or occupation of the user. The method of claim 1, wherein the selecting of the first web document of the searched web documents by the search server comprises: And the searched web documents are selected in a predetermined order, and the search server selects the first web document in a predetermined order. According to claim 1, The search service providing method, And transmitting a second web document of the retrieved web documents to the web client in response to the additional information request signal output from the web client. The method of claim 1, wherein selecting the first web document comprises: And selecting the first web document to correspond to an exposure probability corresponding to the search keyword assigned to each of the web documents. The method of claim 11, wherein the search service providing method comprises: Receiving a bid for the exposure probability corresponding to the search keyword from a manager terminal of each of the web documents; And And allocating the exposure probability corresponding to the search keyword to each of the web documents based on a bidding result. According to claim 1, The search service providing method, And transmitting a search result list corresponding to unloaded web documents among the searched web documents to the web client. A computer-readable recording medium having recorded thereon a program for performing the method according to any one of claims 1 to 13. A control module for receiving a search keyword and a search request signal from a web client; And A search engine for performing a search based on the search keyword under the control of the control module, The control module selects a first web document of any one of the web documents searched by the search engine and transmits information about the selected first web document to the web client. The method of claim 15, wherein the control module, A search server for selecting the first web document to correspond to an exposure probability corresponding to the search keyword assigned to each of the web documents. The method of claim 15, wherein the control module, A search server for selecting the first web document from among the searched web documents based on location information of a terminal of the user where the web client is installed and information on a region corresponding to each of the searched web documents. The method of claim 15, wherein the control module, A search server for selecting the first web document based on information on a user who requested a search among the searched web documents and preference information corresponding to each of the searched web documents. The method of claim 15, The searched web documents are selected in a predetermined order, and the control module selects the first web document in a predetermined order. The method of claim 16, wherein the search server, A bidding module for receiving a bid for the exposure probability corresponding to the search keyword from a manager terminal of each of the web documents, and assigning the exposure probability corresponding to the search keyword to each of the web documents based on a bid result Search server that includes more. The method of claim 15, wherein the control module, And a second web document of the searched web documents to the web client in response to the additional information request signal output from the web client. The method of claim 15, wherein the control module, A search server for transmitting a search result list corresponding to unloaded web documents among the searched web documents to the web client.

Images