WO2012060526A1 - Device and method for providing related information according to query - Google Patents

Abstract

The present invention relate to a device and a method for providing related information to a query comprising: a search word information database for saving search words, information on the existence of a search result for each predetermined search website, and search results; a new search word determination unit for determining whether an input search word is a new search word by using the existence of the input search word in a search information database, when the search word is input by a user; a related information provision unit for providing information relative to the search word to the user based on the determining result of the new search word determination unit, for saving or updating the search word to the search word information database when the search word is a new search word, and for transmitting a search result collection request signal including the search word and search website information to a search result collection unit; the search result collection unit for collecting the search result for the search word in the search website which corresponds to the search website information; and a relative information acquisition unit for extracting terms from each of the search results which are collected from the search result collection unit, acquiring relative information by prioritizing the extracted terms, and for saving same on the search information database. As a result, according to the present invention, collecting search result, which is time consuming, can be divided into two activities comprising regular collection and real-time collection in order to enable active response depending on the level of urgency.

Description

Apparatus and method for providing related information according to a query

The present invention relates to an apparatus and method for providing related information according to a query. More particularly, when a search term is input by a user, the search term determines whether the search term is a new search term based on whether the search term exists in a search term information database, When the search term is a new search term, the search term is stored or updated in a search term information database, the search results for the search term are collected from the corresponding search site, the terms are extracted from the search results, and the extracted terms are ranked. An apparatus and method for providing related information according to a query for obtaining related information.

In general, a user using the Internet can use his computer to obtain desired information through many websites existing on the Internet. To do this, the user must know the address of a website that can provide the desired information, but in reality it is impossible to know a large number of addresses. Therefore, many search engines have been provided to enable a user to find a desired website (or web document) by a simple operation such as inputting only an index word.

Such search engines may be classified into directory search engines, robot search engines, and meta search engines according to their types. Directory search engines collect and process documents manually to build a database and supply collected data in response to user queries. Robot search engines are software search robots that collect and process web documents. Almost all search engines belong to this format. The meta search engine does not have its own search engine module, and provides searched data by using existing search engines.

In general, when a user enters a search command after entering a search word, addresses of a plurality of websites (or web documents) are provided to the user. Sometimes a short description is provided along with the address, and the user sees the content and tries to access the site. In addition, the user attempts to connect to the searched site until the user obtains satisfactory information. The user may waste a lot of time in this process to get the desired information.

On the other hand, even in the case of inputting the same search word, the content of the information to be originally searched may differ for each person according to the user's professional characteristics, desired expertise or taste. For example, if the search term "housing" is taken as an example, the contents of the information required by the user if the user is an architect, a house buyer, a businesswomen, or a real estate agent will be different.

However, if the same search word is input, almost the same search data is provided regardless of the user's characteristics and personality, which also has a disadvantage in that it takes a long time for the search party to obtain desired information.

The present invention has been proposed to solve the above conventional problems, the object of the present invention is to provide the search results and related information according to the characteristics and personality of the user even if the same search word is input until the user desired information The present invention provides an apparatus and method for providing related information according to a query that can reduce time consumption.

Another object of the present invention is to provide an apparatus and method for providing related information according to a query that can actively cope with urgent needs by dualizing time-consuming search result collection into periodic collection and real-time collection.

Another object of the present invention is to process the first input query in the case of real-time collection, without compromising the reliability, once to inform the user with a guide phrases and the like to ensure the stability of the device to respond in the back end in real time The present invention provides an apparatus and method for providing related information.

In order to achieve the above object, according to the present invention, the presence of a search result for each search word and each search word and a search word information database in which the search result is stored, and if a search word is input by the user, A new search term determination unit that determines whether the search term is a new search term based on whether or not it exists in the search term information database, and provides related information about the search term to the user based on a determination result of the new search term determination unit, wherein the search term is a new search term Is a related information provider for storing or updating the search word in the search term information database and transmitting a search result collection request signal including the search word and search site information to a search result collection unit, and a search result from the related information provider. Collect request signal can If it is, the search result collection unit for collecting the search results for the search term from the search site corresponding to the search site information, extracts terms from each search result collected by the search result collection unit, ranking the extracted terms After obtaining the related information by obtaining the related information, there is provided an apparatus for providing related information according to a query including a related information obtaining unit for storing in the search word information database.

The apparatus for providing related information according to the query may further include a stop word checking unit for checking whether the search word is a stop word based on a previously stored stop word dictionary when the search term is a new search word.

In the case of a newly entered search word or a search site that does not have a search result in the search term information database, a position or priority at the top of the search word list so that the search result is preferentially collected by the search result collecting unit. Is given.

The new search term determination unit searches the search term information database to determine whether the input search term exists, and if the search result exists, whether there is a search site without a search result using the presence or absence of a search result for each search site. If there is a search site without a search result, the search term is determined as a new search word for the search site.

The new search term determination unit determines the search term as a new search term when the input search term does not exist in the search term information database.

If the search term exists in the search term information database but is determined to be a new search term for a specific search site, the related information provider is not provided with related information from the specific search site for the search term. The relevant information from other search sites except for the specific search site is obtained from the search term information database, and the search result, the specific search site, and the priority of the search result are preferentially collected from the specific search site. Sends a search result collection request signal including a ranking to the search result collection unit, and uploads the search word to the search term information database so that search results from other search sites except for the specific search site are updated. The bytes.

When the search result collection unit receives a search result collection request signal including the search word, a specific search site, and a priority from the related information providing unit, the search result collection unit preferentially collects search results for the search word from the specific search site, The search results updated in the search term information database are collected and updated from corresponding search sites except for the specific search site.

When the search word is a new search word that does not exist in the search word information database, the related information provider transmits a search result collection request signal including the search word, preset search site information, and priority to the search result collection unit.

When the search result collection unit receives a search result collection request signal including the search word, a preset search site, and a priority from the related information providing unit, the search result collection unit preferentially collects the search result for the search word from all preset search sites. do.

In addition, when the search word is not a new search word, the related information providing unit reads and provides related information about the search word from the search word information database.

The related information acquiring unit extracts terms with frequency from each search result collected by the search result collecting unit, ranks the extracted terms according to frequency, and acquires a predetermined number of terms as related information. Store in the search term information database.

The apparatus for providing related information according to the query periodically searches a preset search site for a search word stored in the search term information database, collects a search result, and extracts terms together with a frequency from each of the collected search results. The apparatus may further include a related information updater configured to rank the extracted terms according to a frequency to obtain a predetermined number of terms as related information, and to store the obtained related information in the search term information database.

The search result collection unit translates the search word into a language of each country by referring to at least one of the thesaurus, a translation dictionary, and a multilingual translator, and then searches a search site having at least one foreign language content for the translated search word. Collect it.

According to another aspect of the present invention, there is provided a method for providing related information according to a user query by a related information providing device having a search word and a search result information for each search site set for each search word and a search term information database storing the search results. (A) when a search word is input by a user, determining whether the input search word is a new search word using whether or not the input search word exists in the search word information database, and (b) the determination result of step (a). If the search term is a new search term, storing or updating the search term in the search term information database, collecting search results for the search term from a corresponding search site, and (c) extracting terms from the collected search results. After obtaining the related information by ranking the extracted terms, the search term information Provided is a method for providing association information according to a query comprising storing in a database.

The step (a) is to search the search term information database to determine whether the input search term exists. If the search term exists in the search term information database, the search result for each search site is used. Determining whether a search site without a search result exists; and when the search site without a search result exists, determining the search term as a new search word for the search site.

If the search word does not exist in the search word information database, the search word may be determined as a new search word.

In the step (b), if the search word is a new search word, determining whether the search word is a stop word based on a pre-stored stop word dictionary, and if the search word is not a stop word, It does not provide the relevant information for the search and store or update the search term in the search term information database, and collecting the search results for the search term from the corresponding search site.

In addition, in the step (b), if the search word exists in the search word information database but is determined to be a new search word for a specific search site, the step (b) indicates related information from the specific search site for the search word. Although not provided, related information from other search sites except for the specific search site is obtained from the search term information database, the search result for the search word is first collected from the specific search site, and the specific search site is provided. Update the search term in the search term information database so that search results from other search sites except for are updated.

In addition, in the step (b), if the search word is not a new search word, related information about the search word is read from the search word information database and provided.

In the step (c), the terms are extracted from the collected search results along with the frequency, and the extracted terms are ranked according to the frequency to obtain a predetermined number of terms as related information, and then the search term information database Save it.

The method for providing related information according to the query periodically searches a preset search site for a search word stored in the search term information database, collects search results, extracts terms from the collected search results with a frequency, and The method may further include obtaining the predetermined number of terms as related information by ranking the extracted terms according to a frequency, and updating the obtained related information in the search word information database.

According to the present invention, even if the same search word is input, the search result and related information according to the characteristics and personality of the user may be provided, thereby reducing the time required for obtaining the information desired by the user.

In addition, time-consuming search result collection can be dualized into periodic collection and real-time collection to actively cope with urgent need.

In addition, in the case of real-time collection, it is possible to secure the stability of the device by processing the first input search word without compromising reliability, and informing the user with a guide phrase or the like at the back end in real time.

1 is a block diagram schematically illustrating a configuration of an apparatus for providing related information according to a query according to an embodiment of the present invention.

2 is a flowchart illustrating a method of providing related information according to a user query by a related information providing device according to an exemplary embodiment of the present invention.

 3 is a flowchart illustrating a method for providing related information according to a user query by a related information providing device according to an exemplary embodiment of the present invention.

4 is a flowchart illustrating a method of updating related information by an apparatus for providing related information according to an embodiment of the present invention.

Details of the above-described objects and technical configurations of the present invention and the effects thereof according to the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 is a block diagram schematically illustrating a configuration of an apparatus for providing related information according to a query according to an embodiment of the present invention.

Referring to FIG. 1, the apparatus 100 for providing related information according to a query includes a search term information database 102, a new search term determining unit 104, a related information providing unit 108, a search result collecting unit 110, and related information. The obtaining unit 112 and the related information update unit 114 are included.

The search word information database 102 stores a search word, a search result presence and a search result for each search site preset for each search word.

That is, the search term information database 102 displays whether there is a search result from a predetermined search site for each search word, and in the case of a search site with a search result, the search result from the search site is stored. It is.

In addition, the search term information database 102 stores related information based on search results collected from each search site.

In addition, in the case of a search word including a newly input search word or a search site that does not have a search result, the search result collection unit preferentially collects the search result in the search word information database 102. Is given location or priority.

When a search term is input by a user, the new search term determination unit 104 determines whether the search term is a new search term based on whether or not the input search term exists in the search term information database 102.

That is, the user may input a search word by using an input unit (not shown) provided in his terminal or the related information providing apparatus 100. When the user inputs a search word using his terminal, the related information providing apparatus 100 receives a search word from the user terminal through a communication network. Here, the user terminal refers to a mobile communication terminal such as a smartphone, a wired communication terminal such as a PC and the like.

The new search term determination unit 104 searches the search term information database 102 to determine whether the input search term exists, and if there is a result of the determination, search results using the presence or absence of a search result for each search site. It is determined whether there is no search site without a, and if a search site without a search result exists, the search term is determined as a new search word for the search site.

For example, in the search term information database 102, five search sites, A search site, B search site, C search site, D search site, and E search site, are preset. The case of "phone" will be described.

As a result of searching the search term information database 102 for "smartphone", if the search results exist in the A search site, the B search site, the C search site, and the D search site, but there are no search results in the E search site, The new search word determination unit 104 determines that "smartphone" is a new search word in the E search site.

In addition, the new search term determination unit 104 determines the search term as a new search term when the input search term does not exist in the search term information database 102.

The related information providing unit 108 provides the user with related information about the search word based on the determination result of the new search word determining unit 104, and if the search word is a new search word, the search word information database. Store or update in 102, and transmits a search result collection request signal including the search word and search site information to the search result collection unit (110).

That is, the related information provider 108 determines that the search term exists in the search term information database 102 but is determined as a new search term for a specific search site. For example, the related information about the specific search site is not provided, but related information about other search sites except for the specific search site is obtained from the search term information database 102 and provided. Thereafter, the related information providing unit 108 searches the search result collection request signal including the search word, the specific search site, and the priority so that the search result is preferentially collected from the specific search site for the search word. The search term is updated in the search term information database 102 so that the search result from the search site except the specific search site is updated.

In addition, when the search word is a new search word that does not exist in the search term information database 102, the related information provider 108 may provide a search result collection request signal including the search word, preset search site information, and priority. The search result collection unit 110 is transmitted.

In addition, when the search word is not a new search word, the related information providing unit 108 reads related information about the search word from the search word information database 102 and provides the search word to the user.

When the search result collection request signal is received from the related information providing unit 108, the search result collecting unit 110 may search for the search term from a search site corresponding to the search site information included in the search result collection request signal. Collect search results.

That is, when the search result collection request signal including the search word, the specific search site, and the priority is received from the related information providing unit 108, the search result collecting unit 110 transmits the search result to the search word from the specific search site. The search results are collected first.

In addition, when the search result collection unit 110 receives the search result collection request signal including the search word, a predetermined search site, and a priority from the related information providing unit 108, the search result collecting unit 110 receives the search result from all the predetermined search sites. The search results for the search term are collected first.

In addition, the search result collection unit 110 collects and updates search results from other search sites except for the specific search site for the search word updated in the search term information database 102.

In addition, the search result collection unit 110 translates the search word into a language of each country by referring to at least one of the thesaurus, translation dictionary, and multilingual translator, and then searches for having at least one foreign language content for the translated search word. You can search the site and collect search results. Here, the search site having the foreign language content refers to an overseas search site or the like. For example, when the search term is 'smart phone', the search result collection unit 110 translates the 'smart phone' into 'smart phone' by referring to one or more of the thesaurus, translation dictionary, and multilingual translator. Search overseas search sites and collect search results.

The related information obtaining unit 112 extracts a term from each search result collected by the search result collecting unit 110, ranks the extracted terms to obtain related information, and then searches the search term information database 102. ). Here, the related information is a word or phrase indicating key words that are related to each other for information retrieval. In the present invention, the related information refers to a word or phrase indicating key words that are related to a search word input from a user.

That is, the related information obtaining unit 112 extracts terms from each search result collected by the search result collecting unit 110 together with the frequency, and ranks the extracted terms according to the frequency of a predetermined number of terms. After obtaining as the related information, and stored in the search term information database (102).

For example, when the search term is "Smart Grid", the related information obtaining unit 112 extracts terms from each search result collected by the search result collecting unit 110 with a frequency, and extracts the extracted terms. Ranked according to frequency, the top certain number of terms "Electric Power T, Distribution MS, Smart Meter, Electric city Distribution, Superconduction PC, Intelligent Monitoring S, High Penetration of CET, Demand Driver C., Electric Control, PHEV" Acquired as related information.

The related information update unit 114 periodically searches a preset search site for a search word stored in the search term information database 102 to collect search results, and then extracts terms from each of the collected search results together with a frequency. In addition, the extracted terms are ranked according to a frequency to obtain a predetermined number of terms as related information, and the obtained related information is stored in the search term information database 102.

The related information providing apparatus 100 configured as described above is a terminology checker 106 that checks whether the term is a stopword based on a previously stored terminology dictionary when the search term is a new term. ) May be further included.

The related information providing apparatus 100 configured as described above is able to proactively cope with the urgency by dualizing time-consuming search result collection into periodic collection and real-time collection.

2 is a flowchart illustrating a method of providing related information according to a user query by an apparatus for providing related information according to an embodiment of the present invention.

Referring to FIG. 2, when a search term for a query is input from the user (S200), the apparatus for providing related information determines whether the search term is a new search term based on whether or not the input search term exists in the search term information database (S202).

As a result of the determination in S202, when the search word is a new search word, the related information providing apparatus determines whether the search word is a stop word based on a previously stored stop word dictionary (S204), and determines whether the search word is a stop word (S206). ).

If the search word is a stopword as a result of the determination of S206, the related information providing apparatus ends the step without providing the related information to the user.

If the search term is not a stopword, as a result of the determination of S206, the related information providing apparatus does not provide the related information about the search term, and transmits the search term to the search term information database so that the search result for the search term is preferentially collected. Save (S208).

Then, the apparatus for providing related information collects search results for the search word from a preset search site (S210), extracts terms from each of the collected search results, and ranks the extracted terms to obtain related information. After that, it is stored in the search word information database (S212).

If the search word is not a new search word, the related information providing apparatus reads the related information of the search word from the search word information database and provides the search word to the user (S214).

A method of providing related information according to a user query by the related information providing apparatus as described above will be described in detail with reference to FIG. 3.

3 is a flowchart specifically illustrating a method of providing related information according to a user query by an apparatus for providing related information according to an embodiment of the present invention.

Referring to FIG. 3, when a search term for a query is input from a user (S300), the apparatus for providing related information determines whether the input search term exists in a search term information database (S302). Since the search word information database stores a search word, a search result for each search site, and whether there is a search result, the related information providing device searches the search term information database to determine whether the input search word exists. Can be determined.

As a result of the determination in S302, if the search word exists in the search word information database, the related information providing apparatus determines whether a search site without a search result exists using the presence or absence of a search result for each search site (S304). .

If there is a search site without a search result as a result of the determination of S304, the related information providing apparatus judges the search term as a new search word for the search site and does not provide related information by the search site without the search result. The relevant information by the search site is obtained from the search term information database and provided (S306).

Then, the apparatus for providing related information first collects the search result for the search word from a search site without the search result, and updates the search term in the search term information database so that the search result is updated later for other search sites. (S308). Then, the related information providing apparatus collects a search result from the corresponding search site for the search term later.

If there is no search site without a search result as a result of the determination of S304, the related information providing apparatus reads and provides related information about the search word from the search word information database (S310).

If the search result does not exist in the search term information database, the related information providing apparatus determines that the search term is a new search term and does not provide the related information for the search term, and the search result for the search term. The search word is stored in a search word information database so as to be collected first (S312). In this case, the apparatus for providing related information checks whether the search word is a stop word based on a pre-stored stop word dictionary, and if the stop word is not, stops the step without providing the related information to the user.

If the search term is not a stop word, the related information providing apparatus stores the search term in a search term information database so as to first collect a search result for the search term without providing the related information about the search term.

After performing the S312, the related information providing apparatus collects a search result for the search word from a preset search site (S314), extracts a term from the collected search results, and ranks the extracted terms. After obtaining the relevant information, it is stored in the search word information database (S316).

4 is a flowchart illustrating a method of updating related information by an apparatus for providing related information according to an embodiment of the present invention.

Referring to FIG. 4, the apparatus for providing related information periodically checks a search word stored in a search word information database (S400), and searches a predetermined search site for each identified search word to collect search results (S402).

Since the search word information database stores the search results in order of search terms, the related information providing apparatus collects the search results according to the priority.

After performing the step S402, the related information providing apparatus extracts terms from the collected search results together with the frequency, and ranks the extracted terms according to the frequency to obtain a predetermined number of terms as the related information ( S404).

Then, the related information providing apparatus updates the acquired related information in the search word information database (S406).

As described above, the apparatus for providing related information periodically updates related information for each search word, and dualizes time-consuming search result collection into periodic collection and real-time collection so as to actively cope with urgent need.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

As described above, the apparatus and method for providing related information according to the query of the present invention is suitable for having a high necessity to actively cope with urgent need by dualizing time-consuming search result collection into periodic collection and real-time collection.

Claims (21)

A search term information database in which a search term and a search result for each search site exist for each search term and a search result are stored; A new search term determination unit determining whether a search term is a new search term based on whether the input search term exists in the search term information database when a search term is input by a user; Provide relevant information about the search word to the user based on the determination result of the new search term determination unit; if the search term is a new search term, store or update the search term in the search term information database, and update the search term and search site information. An association information providing unit for transmitting a search result collection request signal including a search result collection unit; A search result collection unit for collecting a search result for the search word from a search site corresponding to the search site information when a search result collection request signal is received from the related information provider; And A related information obtaining unit for extracting a term from each search result collected by the search result collecting unit, obtaining the related information by ranking the extracted terms, and storing the term in the search word information database; Related information providing device according to a query including a. The method of claim 1, And a search term determining unit for determining whether the search term is a stop word based on a previously stored stop word dictionary. The method of claim 1, In the case of a newly entered search word or a search site that does not have a search result in the search term information database, a position or priority at the top of the search word list so that the search result is preferentially collected by the search result collecting unit. Apparatus for providing association information according to a query, characterized in that the grant. The method of claim 1, The new search term determination unit searches the search term information database to determine whether the input search term exists, and if the search result exists, whether there is a search site without a search result using the presence or absence of a search result for each search site. And determining whether or not a search site exists, and if the search site has no search result, determining the search term as a new search word for the search site. The method of claim 4, wherein And the new search term determination unit determines the search term as a new search term when the input search term does not exist in the search term information database. The method of claim 1, If the search term exists in the search term information database but is determined to be a new search term for a specific search site, the related information provider is not provided with related information from the specific search site for the search term. The relevant information from other search sites except for the specific search site is obtained from the search term information database, and the search result, the specific search site, and the priority of the search result are preferentially collected from the specific search site. Sends a search result collection request signal including a ranking to the search result collection unit, and uploads the search word to the search term information database so that search results from other search sites except for the specific search site are updated. Related information providing apparatus according to the site to query. The method of claim 6 When the search result collection unit receives a search result collection request signal including the search word, a specific search site, and a priority from the related information providing unit, the search result collection unit preferentially collects search results for the search word from the specific search site, Apparatus for providing related information according to a query, characterized in that for collecting the search results from the corresponding search site except the specific search site for the updated search word in the search term information database. The method of claim 1, When the search word is a new search word that does not exist in the search word information database, the related information provider may transmit a search result collection request signal including the search word, preset search site information, and priority to the search result collection unit. Apparatus for providing association information according to a query characterized in that. The method of claim 8, When the search result collection unit receives a search result collection request signal including the search word, a preset search site, and a priority from the related information providing unit, the search result collection unit preferentially collects the search result for the search word from all preset search sites. Related information providing device according to the query, characterized in that. The method of claim 1, The apparatus for providing related information according to a query, wherein the related information providing unit reads and provides relevant information about the search word from the search word information database when the search word is not a new search word. The method of claim 1, The related information acquiring unit extracts terms with frequency from each search result collected by the search result collecting unit, ranks the extracted terms according to frequency, and acquires a predetermined number of terms as related information. Related information providing device according to a query, characterized in that stored in the search term information database. The method of claim 1, Periodically search a search site set for the search terms stored in the search term information database to collect search results, extract terms from each of the collected search results with frequency, and rank the extracted terms according to the frequency. And obtaining an upper predetermined number of terms as related information, and further comprising a related information updater configured to store the obtained related information in the search term information database. The method of claim 1, The search result collection unit translates the search word into a language of each country by referring to at least one of the thesaurus, a translation dictionary, and a multilingual translator, and then searches a search site having at least one foreign language content for the translated search word. Related information providing device according to a query, characterized in that for collecting the. A method of providing related information according to a user query by a related information providing device including a search word and a search result for each search site, and whether a search result information database including the search result is stored is provided. (a) when a search word is input by a user, determining whether the search word is a new search word using whether or not the input search word exists in the search word information database; (b) when the search term is a new search term, storing or updating the search term in the search term information database, and collecting a search result for the search term from a corresponding search site; And (c) extracting a term from each of the collected search results, ranking the extracted terms to obtain related information, and storing the term in the search term information database; A method of providing related information according to an included query. The method of claim 14, In step (a), Searching the search term information database to determine whether the input search term exists; When the search word exists in the search word information database, determining whether a search site without a search result exists by using a search result presence or absence for each search site; And And determining a search term as a new search term for the search site when there is a search site without a search result. The method of claim 15, And if the search word does not exist in the search word information database, determining the search word as a new search word. The method of claim 14, In step (b), If the search word is a new search word, determining whether the search word is a stop word based on a previously stored stop word dictionary; And If the search term is not a stopword, the search engine does not provide related information about the search term, and stores or updates the search term in the search term information database, and collects a search result for the search term from a corresponding search site. A method of providing related information according to a query. The method of claim 14, In step (b), If the search term exists in the search term information database but is determined as a new search term for a specific search site, the related information from the specific search site is not provided for the search term, but the specific search site The relevant information from other search sites except for is obtained from the search term information database, and then the search results for the search term are first collected from the specific search site, and the search is performed from other search sites except the specific search site. The related information providing method according to the query, characterized in that for updating the search word in the search term information database so that a result is updated. The method of claim 14, In step (b), If the search word is not a new search word, further comprising the step of reading the relevant information for the search term from the search term information database and providing the related information according to the query. The method of claim 14, Step (c) is, Extracting terms from the collected search results with a frequency, ranking the extracted terms according to the frequency, obtaining a predetermined number of terms as related information, and storing the terms in the search term information database. How to provide related information according to query. The method of claim 14, Periodically search the search site set for the search terms stored in the search term information database, collect search results, extract terms from the collected search results with frequency, and rank the extracted terms according to the frequency. Obtaining a predetermined number of terms as related information, and updating the obtained related information in the search term information database.

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