WO2001080074A1

WO2001080074A1 - Information retrieval method and information retrieval system

Info

Publication number: WO2001080074A1
Application number: PCT/JP2000/002447
Authority: WO
Inventors: Yasunori Souryou
Original assignee: Esuai Planningu Ugenngaisha
Priority date: 2000-04-14
Filing date: 2000-04-14
Publication date: 2001-10-25

Abstract

Basic information (B) related to an information provider and variable condition information (T) required of a retriever are stored in a database section (34) for providing information. Basic information (b) related to an information retriever and variable condition information (t) required of the retriever are stored in a retrieval information temporary storing area (33). A data matching section performs a cross matching retrieval satisfying the expression [(B) = (t)] & [(b) = (T)], and the information provider and information retriever list the results of the retrieval satisfying mutual retrieval conditions.

Claims

Description Information retrieval method and information retrieval system

The present invention enables bidirectional cross-matching search with the communication partner via the Internet or the like to satisfy each other's needs, and enables easy and real-time search for necessary information. The present invention relates to an information search method and an information search system that enable the following. Technical field

In recent years, the spread of the Internet has been remarkable, and the amount of information has already become very large.However, it is unlikely that the amount of information on the Internet will further increase at an accelerating rate in the future. Absent.

When retrieving information via the Internet, the information provider established a home page in the web server (WWW) containing the information to be transmitted, and waited for a hit from the information searcher. State. In addition, the information searcher, while operating his / her own computer terminal, retrieves other related web pages from one web data of one of a number of web servers (WWW), which are data storage sites, through the provider one after another. They surf the Internet, list the information they want (homepage), and search for the information they want.

By the way, in the existing information search method using the Internet as described above, since the homepage search is performed by character search or power category search, the information searcher side stores the desired information in a straight line. It is often not included, and you must surf the related websites one after another to narrow down the information in order to obtain the information you want.

Also, when narrowing down the information, it is necessary to read each homepage one by one, and without having to spend a lot of time and effort reading the homepage. No.

Therefore, if the information searcher has time to spare or if he or she enjoys surfing the homepage and searches for information on the Internet, this is fine, but the real-time information can be extracted from the vast amount of information. If you want to obtain the information you want, you cannot use the existing Internet-based information retrieval method.

On the other hand, on the information provider side, of course, it is necessary to open a homepage, and this opening work also requires considerable effort, but after the homepage is established, it simply transmits its own information. They simply waited for a hit from the information searcher.

In any case, when searching for information using the existing Internet, the information provider opens a home page and waits for a hit, and the information searcher needs his own information from the information transmitted by the information provider It is a one-way search (one-way search, one-way search), which is a repetition of one-way search that searches for information one by one, and is an information entry search that requires an information searcher to extract a homepage before reading it. The content of the information was not a search.

The above problem will be described below with reference to FIGS. 7 and 8 based on a simple specific example. The basic information (B) means basic basic information on the information provider, and the condition information (T) means variable condition information requested by the information provider. The basic information (b) means basic basic information on the information searcher, and the condition information (t) means variable condition information (t) requested by the information searcher.

In the case of existing information retrieval, the information provider sends only the basic information (B) column in Fig. 7 and the information searcher sends only the condition information (t) column in Fig. 8. Therefore, based on the condition information (t) that "I need a red person", the information searcher can find "I am a red person J" in the basic information (B) of the information provider to the information provider. And the information provider; and the information provider ₄ are extracted. However, in fact, the information provider ₄ says that "I need a black person." Because it has the subject information (τ), it does not match the basic information (b) of “I am a blue person” of the information searcher. For this reason, the information searcher must narrow down the information that matches "I am a blue person" that is the basic information (b) of the information searcher from the information provider ^ and the information provider 4. .

Usually, this narrow search is performed by e-mail, letter, interview, etc., and as a result, it is not possible to search for necessary information easily and in real time.

The present invention has been made in view of the above-described circumstances, and a purpose thereof is to enable communication with a communication partner via the Internet or the like even when an existing homepage is not established. Provides an information search method and an information search system that enables bi-directional cross-matching search that satisfies each other's needs, and enables easy and real-time search of necessary information. To do that. DISCLOSURE OF THE INVENTION

In order to achieve the above object, the present invention provides, as an information retrieval method, basic information (B) related to an information provider by transmitting information transmitted from an information provider as described in claim 1. And the variable condition information (T) requested by the information provider, and the information transmitted by the information searcher is divided into basic basic information (b) related to the information searcher and the variable information requested by the information searcher. When searching for information, the basic information (B) on the information provider side is compared with the condition information (t) on the information searcher side, and the information searcher side is checked. The basic information (b) is compared with the condition information (T) on the information provider side, and as a result of the comparison, between the transmission information at the information provider and the transmission information at the information searcher, the formula: [(B) = (t)] & [(b) = (T) Scan Ta Tsu and Toku徵 a two-way matching search that up.

Further, as described in claim 2, the collation between the basic information (B) on the information provider side and the condition information (t) on the information searcher side is performed by comparing the basic information (B ± _¾ ) and condition information (t ± _x ) that is adjacent to and similar to condition information (t), and matches the basic information (b) on the information searcher side with the condition information (T) on the information provider side. Is the basic The feature is a one-way matching search performed by including basic information (b ± _X ) adjacent and similar to information (b) and condition information (T ± _x ) adjacent and similar to condition information (T). Further, as described in claim 3, after the two-way matching search, the information searcher side is stored as the information provider side, and as described in claim 4, the information searcher side is stored as the information provider side. The information retrieval system that performs a bidirectional matching search is characterized as being a server that is classified into various categories such as music, recruitment, and event introduction.

Further, as an information retrieval system, as described in claim 5, a basic information storage area for storing basic basic information (B) related to the information provider, and a request from the information provider A database section for providing information, comprising a condition information storage area for storing variable condition information (T), and a basic information storage area for storing basic basic information (b) relating to an information searcher; When a search information temporary storage area consisting of a condition information storage area where the information searcher desires to record the variable condition information (t) and an information search start command are input, the information provider's basic In addition to performing a matching search between the information (B) and the condition information (t) of the information searcher, a matching search between the basic information (b) of the information searcher and the condition information (T) of the information provider is performed. In the data collating unit to perform and the data collating unit, the formula: [(B) = (t)] & Output information that lists various search results such as search results when [(b)-(T)] is satisfied or non-search results where the above formula is not satisfied as bidirectional matching search results It is characterized by having a creation unit.

Further, as described in claim 6, in the data collating unit, the collation between the basic information (B) on the information provider side and the condition information (t) on the information searcher side is adjacent to the basic information (B). basic information (B ± _x) and with embraces and condition information (t) to an adjacent similar condition information (t ± _x), information retrieval side of the basic information (b) an information provider side condition information to (T) match with the interactive carried encompass basic information (b ± _x) and condition information (T) to the adjacent similar condition information adjacent similar to the basic information (b) (T ± _x) loam It is featured as a ring search.

Further, as described in claim 7, the information providing database unit stores the information searcher side as the information provider side after the bidirectional matching search, As described in Item 8, the information providing database unit is provided with an external information transmitting and receiving unit that enables network surfing and the like, and performs a bidirectional matching search as described in Item 9. The information retrieval system is characterized in that it is a server that is classified into various categories such as music, recruitment, and event introduction. Simple explanation of drawings

FIG. 1 is a block diagram showing a schematic configuration of an information search system according to the present invention, and FIG. 2 is an explanatory diagram showing a relationship between a basic information storage area and a condition information storage area in an information service database unit. FIG. 3 is an explanatory view showing the relationship between the basic information storage area and the condition information storage area in the search information temporary storage area, and FIG. 4 is an explanatory view exemplifying the matching search operation performed by the data collating unit. 5 is an explanatory diagram illustrating an example of storage specifications of a basic information storage area and a condition information storage area in an information provision database unit. FIG. 6 is a diagram illustrating a basic information storage area and a condition information storage area in a search information temporary storage area. Fig. 7 is an explanatory diagram illustrating an example of storage specifications for a longing area, Fig. 7 is an explanatory diagram illustrating an example of basic information and condition information of an information provider, and Fig. 8 is a diagram illustrating basic information and condition information of an information searcher. Explanatory diagram showing one example, FIG. 9 is a flowchart showing a main operation in the information search system. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of an information search system according to the present invention.

As shown in FIG. 1, the information retrieval system 3, i Ntane' path through the door 2 ecting Co emissions information processing terminal device such as a 1: performs communication with ~ 1 _O, the system control unit 3 0 Therefore, all operations of each section in the information retrieval system 3 are controlled. ♦ Controlled, communication control section 31, database management section 32, information provision database section 33, search information temporary storage area 34, data collation section 3 5, composed of output information creation unit 36, etc. In the following description, the information retrieval system 3 is a server provided for each category, such as music, recruitment, and events.

The communication control unit 31 communicates via the Internet 2 with the information processing terminal 1! ~ _1Ώ It transmits and receives signals, and determines and processes whether or not communication between the information processing terminals 1 to _1n and the information retrieval system 3 should be enabled. If communication is enabled, Transmits and receives communication information based on various rules.

The operation of the communication control unit 31 is not directly related to the gist of the present invention, and therefore, detailed description thereof is omitted. Hereinafter, in the same manner as described above, the information retrieval system 3 will be described only with respect to portions directly related to the gist of the present invention.

The data base management unit 32 stores the information transmitted from the information processing terminals 1 to 1r as a signal of the information provider, and stores the information in the information search system 3 which is a server. If this is desired, the information providing database section 33 is made to write information. Although this writing specification example will be described later, since writing as an information source is performed based on the specification, it is the same as creating an existing homepage, but it is easier to create than an existing homepage.

Also, if the signal transmitted from the information processing terminals 1 i to 1 _n is the signal of the information searcher and the information search system 3 which is a server wants to search for information, the search is performed. The information to be searched is written in the information temporary storage area 34. An example of this writing specification will also be described later.

The information providing database 33 includes a basic information storage area 33a and a condition information storage area 33b as shown in FIG. The basic information storage area 33a stores basic information (B = Bi to B.), which is basic information to be transmitted to the other party (information searcher side) in the information provider. For example, based on 7, "(information provider: is) I am a red person" etc. corresponds to this.

The condition information storage area 33b stores condition information (T = T to _ηη ), which is variable information requested by the information provider to the other party (information searcher bottle). An example based on this would be "(information provider:) I need a blue / '," etc.

The search information temporary storage area 34 includes a basic information storage area 34 3 and a condition information storage area 33 b as shown in FIG. The basic information storage area 3 4 a is the basic information (b = b: ~ b, For example, as shown in Fig. 8, this is "I, who is the (information searcher :), is a blue person".

The condition information storage area 3 3b stores condition information (t == t to t) that is variable information and information to be searched by the information searcher to the other party (information provider). For example, as shown in Fig. 8, "I who is a (information searcher) needs a red person.

The data matching unit (matching engine) 35 is composed of a search control unit 35a and a cross-matching search unit 35b for performing the main function operation. If, for example, the information transmitted by the information searcher is basic information b, _ and condition information, the search control unit 35a determines the information providing database 33 based on the basic information bi and the condition information. with basic information storage searches for the corresponding beta _chi from _Π Facts Β ι ~Β of憧領zone 3 3 information provider stored in the a of, are stored in the condition information storage area 3 3 in b the search for appropriate T _chi from the information provider in a condition information T through T _n, click Rosuma Tsuchingu search section 3 5 b, compared basic information B _x issued searched ♦ extracted in the search control unit 3 5 a Matches with a condition information Te, and collates the basic information with respect Likewise condition information T _x.

This cross-matching is represented by the formula: [(B _x ) = (t!)] & (Ι) = (Τ _χ )].

Next, the principle operation of the data matching unit 35 will be described with reference to FIGS. Assuming that the information searcher's search information is "I am a blue person and I need a red person" as shown in Figure 8. In this case, the basic information l is “I am blue A J and the condition information t: is“ I need a red person ”.

In addition, there are various types of information transmitted by the information provider, such as information provider to information provider n shown in Fig. 7. Among these, "I am a red person and I need a blue person. The information provider "I need a red person and I need a black person" is searched by the search control section 35a of the data matching section 35. You.

Then, the condition information t! And basic information B, B ₄ Is performed, and at the same time, matching between the basic information b and the condition information .T, is performed. In this case, the exact match search is "I am a red person and I need a blue person" and the informant has the formula:! : (B =) = (T ^) & (t) = c. B! )]].

Therefore, according to the search according to this Togitsu example, the information searcher simply searches for the information transmitted by the information provider according to the search information desired by the user. Instead, a bidirectional matching search that satisfies both the information searcher and the information provider can be performed.

On the other hand, a cross-matching search that includes adjacent similarity information as well as an exact match search can be performed. In other words, the data matching unit 35 is adjacent to the basic information (B) when matching the basic information (B) on the information provider side with the condition information (t) on the information searcher side. The similar basic information (B ± _x ) The search is performed so as to include the condition information (t ± _x ) which is adjacent and similar to the condition information (t). The matching between the basic information (b) on the information searcher side and the condition information (T) on the information provider side is based on the basic information (b ± _x ) and the condition information (T) that are adjacent and similar to the basic information (b). A search is performed so as to include condition information (T ± _x ) that is closely similar to

Specifically, the data matching section 35 is provided with a one-to-one matching command section 35c, an adjacent similarity matching command section 35d, and the like. Explaining this in relation to Fig. 7 and Fig. 8, the condition information (t) of the information searcher is "I need a red person", so the one-to-one collation command section 35c operates. In this case, only information providers who are "I am a red person" and information providers are searched.

On the other hand, when the adjacent similarity collation instruction section 35d is operated, the information provider can search for and extract adjacent similar information such as “I am a blue person close to red”. In addition, the detection result evaluation unit 35 e stores the matching data and non-matching data detected in the data matching unit 35, and calculates and processes the total amount of data and the hit ratio. .

In addition, according to the external information transmission / reception unit 34c, it is possible to perform a net surfing on another external web server to collect and search information. Next, FIG. 5 shows an example in which the information retrieval system 3 is referred to as a “server of the category with the friend J”. The principle operation when the information searcher memory unit 34 is the request QXI is schematically shown and described.

BQ s (question) 檷 and BA s (answer) 檷 are provided in the basic information storage area 33 a of the information service database 33. In the BQs (question) column, BQs1 (occupation) column, BQs2 (sex) 檲, BQs3 (age) column, BQs4 (personality) 檷, BQsδ (address)搠, BQ s 6 (Hobby) column, etc. are provided. In addition, in order to enter an answer in response to this BQ s (question) 檷, the BA s (answer) column contains BA s 1 攔 and BQ s 2 (gender) corresponding to BQ s 1 (occupation) 檷BA corresponding to column s 2, BA corresponding to BQ s 3 (age) 欄 BA s 3 corresponding to column, BQ _S 4 (character) BA corresponding to touch BA s 4 攔, BA corresponding to BQ s 5 (address) 攔s5 攔 and BQ s6 (hobby) 攔 have a corresponding BA s6 column.

Furthermore, the condition information storage area 33b of the information provider database section 33 has TQs (question) 檷 and TAs (answer) columns. And TQ s (question), TQ s 1 (occupation) 攔, TQ s 2 (gender), TQ s 3 (age) 櫊, TQ s 4 (character), TQ s 5 (address) 瀾, TQ s 6 (hobby) columns, etc. are provided. In addition, in order to enter an answer in response to this TQ s (question) 攔, the TA s (answer) column contains TA s 1 攔 and TQ s 2 (gender) corresponding to the TQ sl (occupation) column. Corresponding to TA s 2 攔, TQ s 3 (age) TA corresponding to the column, TA s 3 corresponding to column 、, TA s 4 corresponding to TQ s 4 (personality) 、, corresponding to column TQ s 5 (address) The TA s 6 column corresponding to the TA s 5 攔 and TQ s 6 (hobby) columns is added.

On the other hand, the basic information storage area 34 a of the search information temporary storage area 34 has columns b Q s (question) 攔 and b A s (answer). And, in the bQs (question) column, bQs1 (occupation) column, bQs2 (sex) column, bQs3 (age) column, bQs4 (character) column, b (¾ _s 5 (address) column, b Q s 6 (hobby) 攔, etc. In addition, b A s (response) column is used to input a response corresponding to this b Q s (question) column. Contains b A s 1 Brocade corresponding to the b Q s 1 (occupation) column and b A s corresponding to the b Q s 2 (gender) column Ten

Column 2, b Q s 3 (age) b b b s 3 corresponding to 攔, b Q s 4 (personality) b b s 4 corresponding to lin b b s 4 column, b Q s 5 (address) 対応 b Column A s 5 and column B s 6 corresponding to BQ s 6 (hobby) 攔 are added.

The condition information storage area 34b has a tQs (question) column and a tAs (answer) column. In the tQs (question) column, tQs1 (occupation) 攔, tQs2 (sex) column, tQs3 (age) 攔, tQs4 (character) 檷, t Q _s 5 (address) Brocade, t Q s 6 (hobby) 攔, etc. are provided. In addition, in order to input an answer corresponding to this t Q s (question) 攔, t A s (answer) 櫊 includes t A s 1 column, t a s corresponding to the t Q s 1 (occupation) column. TAs2 column corresponding to Qs2 (gender) 、, tAs3 column corresponding to tQs3 (age) 攔, tAs4 column corresponding to tQs4 (personality) column , T Q s 5 (address) Corresponds to the t As 5 column and t Q s 6 (hobby) column corresponding to the gag bb To the “music” power in the t As 6 column

A A

It is attached. s S

2 I

The matching result for B = t is as follows.

Occupation) B Q. s 1 • B A s 1 “Student J 1 t Q s 1-t A s 1“ No question included ”

B Q S 2 • B A s 2 "Male J-t Q 9.

s A s 2 “male J age of match” BQS 3 'BA s 3' 1 8 't Q s 3-t As 3' no question 'Inclusion personality) BQS 4 • BA s 4' no question 'one t Q s 4 «T A s 4 Includes“ Meiro ”Address) BQS 5 • BA s 5“ Yokohama.1-t Q so ♦ t As 5 Includes hobbies) BQS 6 'BA s 6 “Music” 1 t Q s 6-l A s 6 "music" match

The matching result for T = b is as follows.

Occupation) TQ s 1 TA s 1 "Student"-b Q s 1 Student J match gender) TQ _s 2 TA s 2 "Female"-b Q s 2 Woman J match age) TQ s 3 TA s 3 "16-22" — B Q s 3 ♦ b A s 3 “1 9 j inclusive character” TQ s 4 TA s 4 “Meiro” — bQ s 4 'b A s 4 Meiro ”Matching address) TQ s 5 TA s 5“ Tokyo J-bQs-bAs5 Meguro "Inclusion Hobby) TQs6 TAs6" Music "-bQs6 ♦ bAs6 Music" Match As described above, this cross-matching search For example, since the matching results of each other are “matched” or included (acceptable) to each other, the In step 11, the answer is a two-way match that adds each other.

In this case, it is needless to say that the search can be performed to include the close similar information as described above.

Next, the main operation of the information retrieval system 3 will be described based on the flowchart of FIG. First, when information processing terminals 1 to 1 communicate with the information search system 3 via the Internet 2 and the communication permission is determined, the information search system 3 starts. It is said.

In step 100, it is determined whether or not the communication partner is an information provider and desires to write information to be transmitted to the information search system 3 by itself. Here, if it is determined that the information provider wants to write the information (Y E S), the process proceeds to step 200. If it is determined that the communication partner is not an information provider but an information searcher (NO), the process proceeds to step 101.

In step 200, the basic information to be transmitted to the other party that the information provider hits based on the command of the information search system 3 ~ _Bn is written in the basic information record of the information providing database section 33. stores in憧領zone 3 3 a, stores condition information T through T _n ask the other party to the condition information storage憧領zone 3 3 b.

On the other hand, in step 101, it is determined whether the communication partner is an information searcher and requests the information search system 3 to search for information. Here, if it is determined that the information searcher requests information search (Y E S), the process proceeds to step 102. If it is determined that the information retrieval is not requested (NO), the process returns to step 100.

In step 102, the information retriever stores his or her basic information b in the basic information storage area 34 a of the information provision database section 34 based on the instructions of the information retrieval system 3, Next, in step 103, it is determined whether or not the information searcher desires a further cross-matching search based on the stored search conditions. Is determined. Here, if it is determined that the information searcher desires the search (YES), the process proceeds to step 104. 12 If it is determined that the matching search is not desired (N〇), go to step 102.

In step 104, the data collating unit 35 receives basic information and condition information t! Based on the basic information storage from the basic information ～Beta _[pi stored in楦領zone 3 3 in a while searching for basic information _B ~Β Χ suspected of the person, the condition information storage憧領zone 3 3 in b conditions for basic information B i .about.B _X of the condition information t through t z that might qualify the condition information _Τ ~Τ Π stored extracted ♦ searched, retrieved and extracting the information t! Matches with a, performed in the same manner the collation of the basic information for the condition information ~T _X, to re-store-up the Matsuchingu search results.

Next, in step 105, the matching search results are displayed in a listable state, it is determined whether to display the matching search results, and it is determined that the matching search results are to be displayed. If the search is completed, the process proceeds to step 106 to determine whether to display the matching search result or to end the information search. If it is determined that the information search is to be ended, a series of searches is ended. However, if it is not the end of the information search, it is determined that the matching search result is displayed, and the process proceeds to step 300.

As described above, according to the information search system according to this embodiment, the basic database (B) relating to the information provider is stored in the information providing database unit, and the variable The basic condition information (b) concerning the information searcher is stored in the search information temporary storage area, and the variable condition information (t) required for the other party is stored. Then, a cross-matching search that satisfies the formula: [(B) = (t)] & [(b) = (T)] is performed via the data matching unit. The information provider and the information searcher can restore search results that satisfy each other's search conditions.

Therefore, the information searcher does not repeat the one-way search (one-way search, one-way search) in which the information provider side searches the information transmitted by the information provider one by one for each piece of information needed by the information provider. The searcher can search the contents of the information instead of searching for the information, which means that the homepage must be extracted and then read, so the information searcher is free from the effort of searching for the necessary information. Is also information 13 Not only does the provider lose ffl from the effort of informing, but also both the information searcher and the information provider can exchange information in real time without expecting contingency. It also saves you the trouble of opening a homepage,

The server that is an information retrieval system may be a modification of an existing server or a newly created server. Industrial applicability

As described above, according to the present invention, even when a homepage is not laid out, a cross-matching search for information that satisfies each other's needs with a communication partner via the Internet or the like. The required information can be searched easily and in real time.

14 Claims

1 Basic information related to the information provider (B

) And the variable condition information (T) requested by the information provider, and the information transmitted by the information searcher is basic basic information (b) related to the information searcher and the variable information requested by the information searcher Condition information (t)

When searching for information, the basic information (B) on the information provider side is checked against the condition information (t) on the information searcher side, and the basic information (b) on the information searcher side is compared with the information on the information provider side. Check with the condition information (T)

As a result of the collation, when the expression: [(B) = (t)] & [(b) = (cho)] is established between the information transmitted by the information provider and the information transmitted by the information retriever. An information search method characterized by a bidirectional matching search that restores search results.

Two

The matching between the basic information (B) on the information provider side and the condition information (t) on the information searcher side is adjacent to the basic information (B) and adjacent to the similar basic information (B ± _x ) and the condition information (t). Similar information (t ± _x ) is included, and the matching between the information retriever's basic information (b) and the information provider's condition information (T) is similar to the basic information (b). Facts (b ± _x) and condition information information retrieval method according to claim 1, Toku徵bidirectional Ma Ji ing search performed encompass an adjacent similar condition information to the _{(T) (T ± x)} .

3. The information search method according to claim 1, wherein after the S-direction matching search, the information searcher is stored as an information provider.

4. The information retrieval system that performs a bidirectional matching search is characterized in that it is a server that is classified according to various power categories, such as music, recruitment, and event introduction. Or the information search method described in 3.

5 Information provision consisting of a basic information storage area that stores basic basic information (B) related to the information provider, and a condition information storage area that stores variable condition information (T) requested by the information provider Database section,

A basic information storage area for storing basic information (b) relating to the information searcher, and a condition information storage area for storing variable condition information (t) requested by the information searcher. 15 search information temporary storage area,

When the information search start command is input, the basic information (B) of the information provider and the condition information (t) of the information searcher are collated and searched, and the basic information (b) of the information searcher is searched. In the data collating unit that performs collation search with the information provider's condition information (T) and the data collating unit, the expression: (: (B) = (t)] & [(b) = (T)] And an output information creation unit for restoring various search results such as a search result when the search is satisfied or a non-search result not satisfying the above expression as a bidirectional matching search result. Information retrieval system.

6 In the data collating unit, the basic information (B) on the information provider side and the condition information (t) on the information searcher side are compared with the basic information (B ± _x ) that is adjacent to and similar to the basic information (B). The condition information (t) includes condition information (t ± _x ) that is adjacent and similar to the condition information (t), and the basic information (b) on the information searcher side and the condition information (T) on the information provider side are compared with the basic information. wherein the bidirectional Ma pitch ranging search performed includes the distribution (b) conditions information adjacent similar to the basic information (b ± _x) and condition information (T) adjacent similar (T ± _x) An information retrieval system according to claim 5.

7. The information search system according to claim 5, wherein the information provision database unit stores information searcher information as the information provider after the bidirectional matching search.

8. The information retrieval system according to claim 5, 6, or 7, wherein the information providing database unit includes an external information transmitting / receiving unit that enables a net surfing or the like.

9. The information retrieval system for performing a two-way matching search is characterized in that it is a server that is classified into various categories, such as music, recruitment, and event introduction. , 6, 7 or 8 information retrieval system.