JPH0954776A - Network information retrieving system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a network information retrieving system by which it is easy for user to understand the relation between information resources. SOLUTION: A data storage part 6 stores the information resources from a retrieval starting point. A data processing part 7 retrieves the information retrieval including a retrieval sentence from the information resources stored in the data storage part 6 and defines the information resources connected by the link of a hyper text structure as clusters. A data arrangement part 8 defines the information resources in which the depth of the retrieval from the starting point is the shallowest as the representative of the clusters and generates a reverse link for the information resources which can not be attained among the clusters. A virtual node is generated, it is made the representative of the clusters and the link structure of each information resources is outputted as visual data. A data display part 9 displays the contents arranged by the data arrangement part 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network information search system that allows a user to search for a certain keyword on a large-scale computer network, especially on the Internet, and display the search result.

[0002]

2. Description of the Related Art With the development of Internet technology, even end users can easily obtain information on a network. In particular, the World Wide Web (W
WW) is rapidly spreading. The WWW is a distributed information server developed by CERN (European Institute for Nuclear Physics). WWW uses hypertext as a means for connecting various resources on the Internet. The language for describing this hypertext is HTML (HyperText Markup Language),
It has the function of expressing the information of the link to other information resources and the format of the document. Note that HTML is SGML (Stan
dard Generalized Markup Language) is the basic language.

[0003]

However, the following are raised as problems of the conventional network information retrieval system. That is, in the search result of the WWW network information search system on the Internet, the WWW
When the information of the anchor is displayed as it is, if the amount of search results is large, the user cannot know which is the really good information. Also, as a solution to such a problem, there is a method of displaying the search results with importance, but when the amount of the search results is large, the user cannot clearly understand the relationship between the information resources. Absent. From such a point, it has been desired to realize a network information search system in which the user can easily understand the relation between information resources.

[0004]

In order to solve the above-mentioned problems, a network information search system according to a first aspect of the present invention includes a data storage section for storing information resources from an arbitrary search start point of hypertext on a network, Based on the specified search text, the information resources containing the search text are searched from the information resources stored in the data storage unit, and among the searched information resources, information resources connected by hypertext structure links. In summary, the present invention is characterized by comprising a data processing unit that uses these information resources as a group of clusters, and a data display unit that displays the clusters of information resources output from the data processing unit.

With the first aspect of the invention thus configured, the data processing unit first searches the information resources stored in the data storage unit for the information resource including the specified search statement. Next, among the retrieved information resources, the information resources connected by hypertext structure links are put together to form a cluster of these information resources. Then, the data display unit displays the cluster output by the data processing unit.

In order to solve the above-mentioned problems, the network information search system of the second invention outputs a search start point of a hypertext on the network based on a specified search sentence, and a database server from these search start points. Based on the data storage unit that stores the information resource and the specified search sentence, the information resource that includes the search sentence is searched from the information resources stored in the data storage unit, and the hyper resource A data processing unit that collects information resources connected by text structure links and forms a cluster of these information resources, and a data display unit that displays the cluster of information resources output from the data processing unit are provided. It is characterized by that.

According to the second aspect of the present invention thus configured, the database server outputs the search start point on the network based on the specified search statement. The data storage unit stores information resources from these search starting points.
The data processing unit searches the information resources stored in the data storage unit for an information resource including the specified search sentence. Then, among the retrieved information resources, the information resources connected by hypertext structure links are put together to form a cluster of these information resources. Further, the data display unit displays the cluster output by the data processing unit.

In order to solve the above-mentioned problems, the network information search system of the third invention uses the information resource having the shallowest search depth as seen from the search starting point in the network information search system of the first or second invention. For an information resource that cannot be reached in the cluster as a representative of the cluster, a data organizing unit that generates a reverse link in which the direction of the original link is reversed for the information resource, and a representative of the cluster Is provided as a hypertext anchor.

According to the third aspect of the invention, the data organizing unit determines that the information resource having the shallowest search depth as seen from the search start point in the cluster output from the data processing unit is included in the cluster. To be a representative. In addition, a reverse link is generated for information resources that cannot be reached within the cluster. As a result, in the cluster, all information resources can be navigated by following links from the representative information resource.

In order to solve the above-mentioned problems, the network information search system of the fourth invention is such that, when there is an unreachable information resource in the cluster in the network information search system of the first or second invention. A resource and a data organization unit that creates a virtual node that connects a link to, among other information resources, the information resource that has the shallowest depth of search as seen from the search start point, and that virtual node represents a cluster. , A data display unit for displaying the representative of the cluster as an anchor of the hypertext.

According to the fourth aspect of the invention, the data organization unit generates a virtual node when there is an unreachable information resource in the cluster output from the data processing unit. , Make the information resource reachable from this virtual node, and make the virtual node a representative of the cluster. As a result, in the cluster, all information resources can be navigated by following links from the representative information resource.

In order to solve the above-mentioned problems, the network information search system of the fifth aspect of the present invention is, in the network information search system of the first or second aspect of the invention, a data arrangement for outputting the link structure of each information resource as visual data. And a data display section for displaying the link structure of each information resource and for displaying the content of the information resource when there is a display request for any one of the information resources. .

With the fifth aspect of the present invention configured in this way, the data organization unit outputs the link structure of each information resource in the cluster output from the data processing unit as visual data. Further, the data display unit displays the data from the data organization unit, and when there is a display request for any of the information resources, the content of the information resource is displayed.

In order to solve the above-mentioned problems, the network information search system of the sixth aspect of the invention is arbitrary when there is a display switching request to a global link in the network information search system of the third or fourth aspect of the invention. The link conversion unit that displays the links of the information resources from the search starting point in the data display unit and displays the links arranged by the data arrangement unit in the data display unit when there is a request to switch the display to the local links. It is characterized by having.

According to the sixth aspect of the present invention, the link conversion section can arbitrarily send a display switch request to a global link in a local link display state. Information resource link from the search start point,
That is, the data of the original hypertext structure is displayed on the data display unit. Further, in the display state to the global link, when the display switching request to the local link is made, the link organized by the data organizing unit is displayed.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. << First Embodiment >> [Configuration] FIG. 1 is a configuration diagram showing a first embodiment of a network information search system of the present invention. The system shown in the figure includes a data input unit 1, a user interface management unit 2, a search statement processing unit 3, a search management unit 4, a search agent 5, a data storage unit 6, a data processing unit 7, a data organization unit 8, and a data display unit 9. , A computer network 10.

The data input unit 1 is composed of input devices such as a keyboard and a mouse in a computer system, and the user inputs a command for retrieving information resources on the network by using these input devices. . The user interface management unit 2 includes a data input unit 1
Has a function of accepting a command from the data processing unit 3 and passing the command to the search statement processing unit 3, and a function of supplying data (information resource) for displaying the result sorted by the data sorting unit 8 to the data display unit 9. are doing. The user interface management unit 2 also includes a link conversion unit 2a. When there is a display switching request to the global link from the data input unit 1, the link conversion unit 2a causes the data display unit 9 to display the link of the information resource from an arbitrary search start point, and the global link is displayed. When there is a display switching request to a local link in the display state of the links, the data display unit 9 has a function of displaying the links organized by the data organizing unit 8.

The search sentence processing unit 3 has a function of accepting a search sentence input by the user via the user interface management unit 2 and checking whether the search sentence is syntactically correct. If the inspection result is not correct, the data display unit 9 is instructed via the user interface management unit 2 to display an error message to the user. Operates to supply.

The search sentence in this system is composed of words or words connected by a logical product (AND) and a logical sum (OR). For example, the following search sentence can be described. Agent-oriented language In addition, logical product (AND) and logical sum (OR) can be used to write as follows. Agent-oriented language AND information filtering This indicates a search sentence (profile) in which the words "agent-oriented language" and "information filtering" are the logical product (AND). Agent-Oriented Language OR Multi-Agent System This indicates a search sentence in which the words "agent-oriented language" and "multi-agent system" are the logical product (OR).

The search management unit 4 has a function of determining a search strategy from a user's search text and generating a search agent 5. The search agent 5 has a function of searching information resources on the computer network 10 in accordance with a command from the search management unit 4.

The data storage unit 6 is a storage unit for temporarily storing the retrieved data (information resource) and the data processed by the data processing unit 7 and the data organizing unit 8. The data processing unit 7 has a function of analyzing a document in the information resource stored in the data storage unit 6 and analyzing whether the character string in the search sentence is included in the document. . That is, the data processing unit 7 searches the information resources stored in the data storage unit 6 for an information resource including the search statement based on the specified search statement, and, of the searched information resources, Information resources connected by hypertext structure links are collected and these information resources are made into a cluster.

The data organizing unit 8 organizes the information resources connected by hypertext structure links among the retrieved information resources, organizes the data as a cluster, and determines the depth of the search viewed from the search starting point. The shallowest information resource is the representative of the cluster, and for information resources that cannot be reached in the cluster,
It has a function to generate a reverse link by reversing the direction of the original link. The data display unit 9 is a display for displaying the retrieved data (information resource), and displays the representative of the cluster output from the data organizing unit 8 as a hypertext anchor. The computer network 10 is a computer network, such as the Internet, capable of searching for information resources via the network.

[Operation] FIG. 2 is an operation flowchart of the first embodiment. <Step S1> When the user inputs a start command, the network information search system is started. As a result, the data input unit 1 waits for the user's data to be input. <Step S2> The user inputs a search sentence, a search start point on the WWW, and a search depth on the WWW.

FIG. 3 is an explanatory diagram of an input screen for this search sentence. In this example, a search for the keyword information AND filtering is shown. Also, it indicates that http://www.cs.bham.ac.uk/amg/agents/ was input as the search starting point, and that the search depth is 3. Here, http indicates a protocol on the computer network 10, www.cs.bham.ac.uk indicates a machine having the computer network 10, and / amg.
/ agents / indicates the hierarchy of a directory on that machine.

FIG. 4 is an explanatory diagram of the search starting point and the search depth in the information resource having such a hypertext structure. As shown, the search start point is the position of the anchor that the user searches first. The anchor is composed of word / phrase data and link information indicating to which word / phrase the word / phrase is linked.
Further, the search depth indicates the number of hypertext links that have been traced from the start point of the search.

<Step S3> The syntax of the search sentence is checked. In the example, in FIG. 3, when the user presses the “start search” button (clicks with the mouse), the search statement processing unit 3 parses the search statement input by the user, and the syntax of the search statement is Check for correctness. If the syntax is correct, the search statement processing unit 3 converts the search statement into the search management unit 4
To supply. If the syntax is incorrect, the search statement processing unit 3
Sends a syntax error message to the user interface manager 2.

<Step S4> The search management unit 4 instructs the search agent 5 to perform a search starting from the WWW node designated by the user. In the example, the search agent 5 is the anchor of the information resource in the directory in WWW on the machine cs.bham.ac.uk.
Find / amg / agents / and copy it to data store 6. <Step S5> The data processing unit 7 searches the information resource obtained in step S4 based on the search sentence.

The example of step S5 will be described in detail below. FIG. 5 is an explanatory diagram of the search process. The search agent 5 copies the information resource 2 of the link destination of the anchor 2 shown in FIG. 5 to the data storage unit 6, and the data processing unit 7 searches the information resource 2 in the data storage unit 6 for the search sentence “information AND filtering”. Search based on ".

At this time, the search is determined by the similarity between the information resource and the search sentence. For example, as an example of the degree of similarity, if there is at least one character string "information filtering" that is a search sentence of the user in the information resource, it is a search target. Based on this method, the information resource 2 is
It is recognized as a search target because it contains both rmation and filtering words. Similarly, the anchor 5 in the information resource 2 to the anchor 17 in the information resource 15 of FIG. As a result, the information resources 2, 3, 4, 5, 7, 8, 13, and 15 marked with ⊚ in FIG. 5 are the obtained information resources.

<Step S6> The data processing unit 7 rewrites the link of the information resource of the data storage unit 6. That is, the data processing unit 7 replaces the anchor having the information resource that has not been searched with the original word and deletes the information of the link. FIG. 6 is an explanatory diagram showing this state.
This replaced link is called a local link, and the original link on the network is called a global link.

<Step S7> The data organization unit 8 organizes the data in the data storage unit 6. At this time, a link having a direction opposite to the original link is generated for the information resource that cannot be reached by the user's navigation. Figure 7
FIG. 6 is an explanatory diagram of a case where this reverse link is generated. As shown in the figure, from the information resource 8 to the information resource 3, the information resource 8
To the information resource 15 from. Then, a group of information resources connected by a link is defined as a cluster. At that time, a node having a small search depth in each cluster is represented as the cluster. Here, the cluster 1 is represented by the information resource 2 and the cluster 1 is represented by the information resource 4.

<Step S8> The user interface management unit 2 displays the representatives of the clusters in step S7 to the user as search results. FIG. 8 is an explanatory diagram of a search result display screen. In this case, the information resources 2 and 4 are displayed as representatives of the clusters 1 and 2. In the drawing, a hypertext anchor is underlined, but it has a display color different from that of other parts on the actual screen, or a blink.

<Step S9> When there is a display request from the user, the data display unit 9 displays the search data in the user data storage unit 6 to the user. In the example, the user
The information resources 2 to 5, which are the representatives of the cluster 1,
You can navigate 7, 8, 3, and 15.
Here, the information resource 8 to the information resource 3 or the information resource 15
The can be navigated to by following the generated reverse link. In addition, the user can navigate the information resource 13 from the information resource 4 that is the representative of the cluster 2. The anchor information for the representative 1 and the representative 2 is displayed on the display screen for the user. The user can see the search result by clicking the anchor information with the mouse. Further, when a reverse link is generated as in the information resource 8, the reverse link destination is also displayed.

FIG. 9 is an explanatory diagram of a display screen of anchor information in which a reverse link is generated. In this case, together with the anchor information of the information resource 8, the information resource 3 that is the reverse link destination
And the information resource 15 are displayed.

<Step S10> When the user makes a display request to the global information resource, the link conversion unit 2a.
Replaces local links with global links (original links). This allows the user to refer to the original information resource. As a result, the user can see two structures, (1) a structure in which the retrieved results are organized, and (2) the original hypertext structure. The original data of the hypertext structure is stored in a server (not shown). This server holds the data of the information resource accessed once for a certain period of time, and the link conversion unit 2a obtains the global link data by accessing this server.

FIGS. 10 and 11 are explanatory views of display screens of local links and global links. In a local link, as shown in FIG. 7, the anchor 6 is replaced with the original word, and the link is in a deleted state, so that it is not displayed as an anchor. In this state, if the user presses the button of "Global View" (clicks with the mouse), the anchors 7 and 5 are replaced with global anchors, and the display is as shown in FIG. In FIG. 11, the global anchor 6 is displayed as a link to the information resource 6 that has not been searched.

On the other hand, on the screen shown in FIG. 11, the user selects "Loca
When the button "l View" is pressed, the screen changes to the screen of Fig. 10. In this way, the user can easily switch between the two structures (1) and (2) described above, and Information resources can be referred to more flexibly.

<Step S11> If the user's search statement is a syntax error, the search statement processing section 3 informs the user interface management section 2 of the syntax error. The user interface management unit 2 informs the user of the syntax error through the data display unit 9.

[Effect] As described above, according to the first embodiment, the user directly displays the WWW anchor information as the search result in the WWW information search on the Internet starting from the WWW node. In that case, when the amount of search results is large, it is not possible to know which information is really good for the user. By organizing the nodes connected by hypertext links, the search data was organized for the user. Can be provided in form.

For nodes that cannot be navigated when the hypertext structure is put together, the user can efficiently navigate by creating reverse links.

Further, there is a demand for referring to the hypertext structure as a result of the search. In response to such a request, in the first embodiment, the link structure is replaced with the original structure, so that the user can refer to the original information resource. Therefore, the user can switch between the two structures (1) the organized result of the search and (2) the original hypertext structure, and can refer to the information resource more flexibly.

<< Second Embodiment >> [Configuration] FIG. 12 is a configuration diagram of a network information search system according to a second embodiment of the present invention. The illustrated apparatus includes a data input unit 1, a user interface management unit 2, a search statement processing unit 3, a search management unit 4, a data storage unit 6, a data processing unit 7, a data organization unit 8a, a data display unit 9, and a computer network 10. , Database server 11.

Here, the database server 11 realizes a part of the information resources on the computer network 10 as a database. When a search sentence is given to this database server 11, W that meets the search condition
Information on the anchor on the WW is obtained as a search result.

The data storage unit 6 stores the information resource from the search start point given from the database server 11. If there is an information resource that cannot be reached in the cluster, the data organization unit 8a
Among other information resources, a virtual node that connects a link to an information resource that has the shallowest depth of search as seen from the search start point is generated, and this virtual node is represented as a cluster, or
It has a function of outputting the link structure of each information resource as visual data. The other configurations are similar to those of the first embodiment, and therefore, the same reference numerals are given and the description thereof is omitted.

[Operation] In the second embodiment, the search management unit 4 supplies a search statement to the database server 11 of the computer network 10, and the WWW anchor output by the database server 11 as the search result is used as the search start point.
In the second embodiment, a case where there are three search start points obtained from the database server 11 will be described.

13 and 14 are operation flowcharts of the second embodiment. <Step S21> When the user inputs a start command, the network information search system is started.
As a result, the data input unit 1 waits for the user's data to be input. <Step S22> The user inputs a search sentence, a search start point on the WWW, and a search depth on the WWW.

FIG. 15 is an explanatory diagram of the input screen for this search sentence. In this example, a search for the keyword information AND filtering is shown. It also indicates that the depth of the search is 3. Here, the definition of the search start point and the search depth is the same as in the first embodiment.

<Step S23> The syntax of the search sentence is checked. In the example, in FIG. 15, the user “starts search”
When the button is pressed, the search statement processing unit 3 analyzes the search statement input by the user according to the syntax of the search statement of the database server 11 to check whether the syntax of the search statement is correct. If the syntax is correct, the search statement processing unit 3 supplies the search statement to the search management unit 4. If the syntax is incorrect, the search statement processing unit 3 sends a syntax error message to the user interface management unit 2.

<Step S24> The search management unit 4 supplies the database server 11 with the search text input by the user. In the example, the search management unit 4 uses the “information AN
The database server 11 uses the search sentence "D filtering".
To supply. <Step S25> The database server 11 performs a search based on the search sentence supplied in step S24.

<Step S26> Database server 1
1 supplies the searched search result (an anchor of WWW) to the search management unit 4. As a result, as a search starting point, (1) http://www.glue.umd.edu/enee/medlab/filter/fil
ter.html (2) http://www.glue.umd.edu/enee/medlab/filter/fil
ter_project.html (3) It is assumed that three anchors, http://www.xerox.com/PARC/dlbx/filtering.html, are obtained. Here, it is necessary to perform all navigation based on the search start point obtained from the database server 11, but in the second embodiment also, the data processing unit 7 collects information resources connected by hypertext structure links, The use of clusters enables efficient navigation.

<Step S27> The search management unit 4 searches for the search depth specified by the user, starting from the WWW anchor supplied in step S26.
The data is stored in the data storage unit 6. The search for each search start point is the same as that in the first embodiment. 16 and 17
[Fig. 8] is an explanatory diagram showing a search result in the second embodiment.
Here, the information resource 1, the information resource 14, and the information resource 21 are
It corresponds to the search start point obtained from the database server 11, and the search is performed from each search start point as described in the first embodiment.

<Step S28> The data processing unit 7 rewrites the link of the information resource of the data storage unit 6. That is, the data processing unit 7 replaces the anchor having the information resource that has not been searched with the original word and deletes the information of the link. 18 and 19 are explanatory diagrams of the link rewriting process. Also in the second embodiment, the replaced link is called a local link, and the original link on the network is called a global link. Here, the information resource 5 and the information resource 14 indicate the same information resource searched from different search starting points. The same applies to the information resources 13 and 21 in FIG.

<Step S29> The user interface management section 2 asks the user whether to visually display the organized hypertext structure. The visual display has a structure shown in FIG. 23 described later, which will be described in detail in step S34 and the subsequent steps.

<Step S30> The data organization unit 8a organizes the data in the data storage unit 6. That is, the information resources linked by the link are used as the cluster search result. In this case, a node with a small search depth (shallow depth) is represented as the cluster. 20 and 21 are explanatory views of this state.

<Step S31> The data organization unit 8a
For each cluster, if there are multiple representatives, a virtual node and virtual link are generated. For example, in the example shown in FIGS. 18 and 19, since there are two representatives of the cluster 1, the information resource 0 is generated as a virtual node, and the links are generated for the information resources 2 and 3. Then, the generated information resource 0 is set as a representative of the cluster 1. This is shown in FIG.
The states are 0 and 21. Here, the information resource 0 is a virtual information resource having only an anchor.

<Step S32> The user interface manager 2 displays the representatives of the clusters in step S31 to the user as search results. FIG. 22 is an explanatory diagram of this display screen. Here, the information resource 0 of the cluster 1 and the information resource 4 of the cluster 2 are displayed as anchors.

<Step S33> When there is a display request from the user, the data display unit 9 displays the search data in the data storage unit 6 of the user. <Step S34> The data organization unit 8a organizes the data in the data storage unit 6. That is, as shown in FIGS. 18 to 21, the information resources to which the links are connected are used as the search results of the cluster.

<Step S35> When there is a display request from the user, the data display unit 9 displays the information resource in the data storage unit 6 of the user to the user in a hypertext structure. FIG. 23 is an explanatory diagram showing this state. That is, on the display screen, each node and its link relationship are visually represented. In this case, the data organizing unit 8a outputs the link structure of each information resource as visual data and stores it in the data storage unit 6. User interface management unit 2
When the user makes a visual display request, the data is taken out from the data storage unit 6 and output to the data display unit 9.

<Step S36> The user performs step S3
If any node of the hypertext structure displayed in 5 is clicked with the mouse, the data display unit 9 displays the information resource related to it to the user. <Step S37> If the search sentence of the user is a syntax error, the search sentence processing unit 3 causes the user interface management unit 2
Informs you of a syntax error. The user interface management unit 2 informs the user of the syntax error through the data display unit 9.

[Effect] As described above, according to the second embodiment, when the user searches using the database server 11 on the computer network 10, all the search results obtained as the WWW anchor information are displayed by the user. For the problem of having to navigate,
By filtering the hypertext structure and gathering the linked information resources, the user does not have to navigate all the information resources,
It is possible to reduce the operational burden on the user.

Further, regarding nodes that cannot be navigated when the hypertext structure is put together, the user can efficiently navigate by implementing the representative of each cluster by virtual nodes. Furthermore,
Since it is displayed visually, the link relationship of each information resource can be easily understood.

In each of the above-described embodiments, the system in which the user inputs the search starting point and searches from the search starting point in the first embodiment, and in the second embodiment, the database server 11 supplies the search starting point in the system. However, the respective configurations may be reversed. That is, in the system to which the search start point is supplied from the database server 11, the display method may be a reverse link configuration. Alternatively, the search start point is not supplied from the database server 11 and the user inputs the search start point. In the configuration
A virtual node may be generated or configured to be displayed visually.

Further, in each of the above embodiments, the retrieval of the document in the information resource has been described.
If you search for the content of the image, you can search the network information including the image.
The same can be applied. Further, in each of the above-described embodiments, the search for the information resource on the WWW has been described, but the same applies to the search for the information resource having the hypertext structure on another network.

[0064]

As described above, according to the network information retrieval system of the first and second inventions, among the retrieved information resources, the information resources connected by the hypertext structure link are collected and Since the information resources are clustered, the search data can be provided to the user in an organized form.

According to the network information search system of the third invention, a reverse link is generated for an information resource that cannot be reached in the cluster, and in the network information search system of the fourth invention, If there is an information resource that cannot be reached, create a virtual node and make that virtual node the representative of the cluster.
Further, according to the network information search system of the fifth invention, the link structure of each information resource is visually displayed, so that the user can efficiently perform navigation.

According to the network information retrieval system of the sixth aspect of the present invention, it is possible to switch between a global link and a local link, so that the user can choose between the structure in which the retrieved results are organized and the original hypertext structure. It can be viewed in one structure and can refer to information resources more flexibly.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a network information search system according to a first embodiment of the present invention.

FIG. 2 is an operation flowchart of the network information search system according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram of a search sentence input screen in the network information search system according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a search start point and a search depth in an information resource having a hypertext structure.

FIG. 5 is an explanatory diagram of a search process in the network information search system according to the first embodiment of the present invention.

FIG. 6 is an explanatory diagram of a link rewriting process in the network information search system according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram when a reverse link is generated in the network information search system according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram of a search result display screen in the network information search system according to the first embodiment of the present invention.

FIG. 9 is an explanatory diagram of a display screen of anchor information in which a reverse link is generated in the network information search system according to the first embodiment of the present invention.

FIG. 10 is an explanatory diagram of a local link display screen in the network information search system according to the first embodiment of the present invention.

FIG. 11 is an explanatory diagram of a global link display screen in the network information search system according to the first embodiment of the present invention.

FIG. 12 is a configuration diagram of a network information search system according to a second embodiment of the present invention.

FIG. 13 is an operation flowchart (No. 1) of the network information search system according to the second embodiment of the present invention.

FIG. 14 is an operation flowchart (No. 2) of the network information search system according to the second embodiment of the present invention.

FIG. 15 is an explanatory diagram of a search sentence input screen in the network information search system according to the second embodiment of the present invention.

FIG. 16 is an explanatory diagram (1) showing search results in the network information search system according to the second embodiment of the present invention.

FIG. 17 is an explanatory diagram (part 2) showing search results in the network information search system according to the second embodiment of the present invention.

FIG. 18 is an explanatory diagram (1) of a link rewriting process in the network information search system according to the second embodiment of the present invention.

FIG. 19 is an explanatory diagram (No. 2) of link rewriting processing in the network information search system according to the second embodiment of the present invention.

FIG. 20 is an explanatory diagram (part 1) of a result of organizing data in the network information search system according to the second embodiment of the present invention.

FIG. 21 is an explanatory diagram (part 2) of the result of organizing data in the network information search system according to the second embodiment of the present invention.

FIG. 22 is an explanatory diagram of a search result display screen in the network information search system according to the second embodiment of the present invention.

FIG. 23 is an explanatory diagram of a display screen visually showing search results in the network information search system according to the second embodiment of the present invention.

[Explanation of symbols]

 2 user interface management unit 2a link conversion unit 6 data storage unit 7 data processing unit 8 and 8a data organization unit 10 computer network 11 database server

Claims (6)

[Claims] 1. A data storage unit that stores information resources from an arbitrary search start point of hypertext on a network, and a search from the information resources stored in the data storage unit based on a specified search sentence. A data processing unit that searches for information resources including sentences, collects information resources that are connected by hypertext structure links from the searched information resources, and forms a cluster of these information resources; And a data display unit that displays a cluster of information resources output from the unit. 2. A database server that outputs a search start point of hypertext on a network based on a specified search statement, a data storage section that stores information resources from these search start points, and a specified search statement based on the specified search statement. , Information resources including the search sentence are searched from the information resources stored in the data storage unit, and among the searched information resources, the information resources connected by the hypertext structure link are collected, and these information are collected. A network information search system, comprising: a data processing unit that uses resources as a group of clusters; and a data display unit that displays a cluster of information resources output from the data processing unit. 3. The network information search system according to claim 1 or 2, wherein the information resource having the shallowest search depth from the search start point is represented as the cluster, and the information which cannot be reached in the cluster. For the resource, the information resource includes a data organizing unit that generates a reverse link by reversing the direction of the original link, and a data display unit that displays the representative of the cluster as a hypertext anchor. A network information retrieval system characterized in that 4. The network information search system according to claim 1 or 2, when there is an information resource that cannot be reached in the cluster, the information resource and other information resources are viewed from the search starting point. A data organizing unit that generates a virtual node that connects a link to an information resource with the shallowest search depth, and uses the virtual node as a representative of the cluster, and a data display that displays the representative of the cluster as a hypertext anchor. And a network information search system. 5. The network information search system according to claim 1 or 2, wherein the data organization unit outputs the link structure of each information resource as visual data, and displays the link structure of each information resource, A network information search system comprising: a data display unit for displaying the content of the information resource when there is a display request for the information resource. 6. The network information search system according to claim 3 or 4, wherein when there is a display switching request to a global link, a link of an information resource from an arbitrary search start point is displayed on the data display section. A network information retrieval system comprising a link conversion unit for displaying the links arranged by the data arrangement unit on the data display unit when there is a request to switch the display to a local link.