JP5187064B2 - Web resource tracking management program, Web resource tracking management device, and Web resource tracking management method - Google Patents

Description

  The present invention relates to a Web resource tracking management program, a Web resource tracking management apparatus, and a Web resource tracking management method, and more particularly, to a resource transferred from a first Web resource including one or more resources per page to another Web resource. The present invention relates to a Web resource tracking management program, a Web resource tracking management apparatus, and a Web resource tracking management method for tracking.

  In recent years, techniques for accessing Web resources on a network such as the Internet or an intranet are often used. Access technology to Web resources such as Web pages is used in search systems, Web annotation systems, Web browsers, bookmark systems, and the like.

  The search system prepares an index in advance for a Web page on the network, and returns the location information (for example, URL) of the Web page by referring to the index for a query (processing request) given at the time of search. Is.

  On the other hand, in the Web annotation system, another third party different from the author of the Web page gives an annotation such as a tag, underline, or marker as secondary information to the Web page on the network. When the Web page is browsed, the added annotation is displayed at the same time as the Web page, or processing based on the added annotation is added to the Web page.

  Normally, when an annotation is added to a web page, the URL of the web page is stored, and the annotation is restored when the web page specified by the URL is browsed, so that the web page can be browsed over time. In addition, the annotation is restored even when browsing by a third party different from the annotator with the annotation.

  These search systems, Web annotation systems, and the like work effectively when the location of resources such as articles included in a Web page does not change over time. However, sites that handle flow-type information such as blogs and news have one or more articles on a Web page specified by a single URL. In addition, in sites that handle flow-type information such as blogs and news, other articles are added over time, and the configuration of the Web page is changed.

  As described above, since the search system, the Web annotation system, and the like acquire the Web page specified by the URL every time the Web page is required, if the configuration in the Web page is changed, the index In some cases, the position where the content or annotation is added does not correspond to the actual Web page.

  In order to cope with such a situation, Patent Document 1 describes contents that enable tracking to some extent even if a document is changed after a marker or the like is attached to the document. In Patent Document 1, a display position of a marker or the like and a character string before and after the marker are recorded in association with each other, and the character string before and after the display position is inspected when the marker or the like is displayed. In Patent Document 1, when the character string before and after the display position of the marker or the like is different from the recorded character string, the position of the recorded character string is searched from the document, and the original display position is determined. The acquired marker is displayed.

By applying the technology of Patent Document 1, the search system, the Web annotation system, and the like make the contents of the index and the position to which the annotation is attached correspond to the actual Web page even if the configuration in the Web page is changed. I was able to.
JP 2000-163414 A

  Conventionally, when the number of articles in a Web page is limited, an article may be moved into a Web page specified by a URL different from the first URL in a format such as “next page”. there were.

  When an article moves into a Web page specified by a URL different from the first URL, when the original location (first URL) is accessed in order to browse the article, the article is automatically set. There is a request to jump (display the article of the moved destination) to the destination (another URL).

  FIG. 1 is a schematic diagram illustrating an example in which an article moves into a Web page specified by a URL different from the initial URL. At some point: Assume that there are an article A, an article B, and an article C in the file 10 called html. In general, news, blogs, and the like include a plurality of articles A to C on one page as shown in the file 10, and a new article C is often arranged at the top. At this point, the article B is used as an index in the case of a search system, and in the case of a web annotation, as the position of the annotation given to the article B. It is stored as existing in html.

  Here, index. Assume that a file 12 called html stores the location of each article. When a certain time has passed, Article D and article E are added to html, and articles that exceed a certain condition are moved to other Web pages. In FIG. 1, it is assumed that the number of articles A and articles B is 2. This means that the file has been moved to the file 11 called html. When an article moves in this way, there has been a request to automatically track the destination of the article and display the article at the destination.

  In the search system, the robot re-collects the related resources and rebuilds the index so that the index indicates the correct position. The search system shortens the period until it is correct by shortening the recollection interval. However, this is a probabilistic problem and the time to correct cannot be zero.

  The Web annotation system extracts a keyword (or ngram) as attention item identification information, and gives this attention item identification information to the search system, thereby recognizing that the annotation assignment destination has moved to the location indicated by the search system. However, as described above, this is based on the assumption that the search system always points to the correct position, and this assumption may not be satisfied.

  Conventionally, the movement of articles and the recollection of the position of the related web page by the robot are asynchronous, so it takes time to rebuild the index, and there is a problem that the moved articles cannot be searched depending on the timing. . Although it is possible to start and collect search indexes on demand, it takes time to rebuild the index, and there is a problem that it is not possible to track articles focused on at high speed.

  One embodiment of the present invention has been made in view of the above points, and a Web that can easily and quickly track a resource that has moved from a first Web resource including one or more resources to one page to another Web resource. An object is to provide a resource tracking management program, a Web resource tracking management device, and a Web resource tracking management method.

  In order to solve the above-described problem, an embodiment of the present invention is a Web resource tracking management that causes a computer to track the resource that has been moved from a first Web resource including one or more resources per page to another Web resource. A receiving means for receiving correspondence between the location information of the first Web resource and the target resource identification information for identifying the target resource included in the first Web resource; Extraction means for extracting the Web resource corresponding to the location information selected by the user, and existence confirmation for confirming whether the attention resource exists in the Web resource extracted by the extraction means, based on the attention resource identification information And a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted by the extraction unit The extraction means to be output, the tracking means for notifying the location information indicated by the link extracted by the extraction means to the extraction means as the next location information, and the resource of interest exists in the Web resource extracted by the extraction means In this case, it is a Web resource tracking management program for causing the Web resource to function as a transmission unit that transmits the Web resource to the user terminal.

  In addition, what applied the component, the expression, or arbitrary combinations of the component of one Embodiment of this invention to a method, an apparatus, a system, a computer program, a recording medium, a data structure, etc. is also effective as an aspect of this invention. .

  As described above, according to an embodiment of the present invention, resources moved from a first Web resource including one or more resources per page to another Web resource can be easily and quickly tracked.

  Next, the best mode for carrying out the present invention will be described based on the following embodiments with reference to the drawings.

(Overview of this example)
In the present embodiment, when there is no item of interest at a specified location (URL) in a jump to an item of interest (attention resource) such as an article that moves between Web pages, it is referred to as “next page” in the Web page. In such a format, a link that jumps to a Web page specified by another URL (hereinafter referred to as a navigation link) is searched, and the target attention item is found by following the navigation link. Therefore, in this embodiment, it is possible to track the item of interest that has moved to another Web page.

  In this embodiment, in the search and annotation for resources such as articles on networks such as the Internet and Intranet, even if there is a systematic article movement that is not a disorderly movement (by human free will), the search result In addition, when browsing an annotated resource, access (viewing etc.) to a destination reflecting the movement of the resource is made possible.

  For example, it is assumed that an article A including a character string “hoge” is on a web page “http: //foo/bar1.html”. The search engine crawler collects this Web page and stores “http: //foo/bar1.html as the location of the string“ hoge ”. After that, the site“ http: // foo / ” Then, an article is added, and article A is moved to "http: //foo/bar2.html". At this time, when the user of the search engine performs a search by giving “hoge” as a query, the conventional search engine returns “http: //foo/bar1.html” as the location of the character string “hoge”. On the other hand, in this embodiment, as the location of the character string “hoge”, “http: //foo/bar2.html”, which is the destination of the article A, is returned (or the destination “ http: //foo/bar2.html ”).

  Or in an application called Web Annotation, when annotating Article A that was in "http: //foo/bar1.html", the Web annotation system uses "http: //foo/bar1.html" as the location of the annotation. Suppose you remember it. After that, an article is added to the site “http: // foo /”, and article A is moved to “http: //foo/bar2.html”. At this time, if you try to jump to the article with the annotation from the location of the annotation, the conventional Web annotation system jumps to “http: //foo/bar1.html” and added the annotation. Article A is not found. On the other hand, in this embodiment, by jumping to “http: //foo/bar2.html” which is the destination of the article A, the article A and the annotation attached thereto can be displayed.

  Next, sample HTML text will be described. For example, assume that the web page “http: //foo/bar1.html” is as shown in FIG. FIG. 2 is an image diagram of an example of a Web page. In the Web page of FIG. 2, articles are separated by a horizontal line, and each article includes a date, title, and article content. The Web page in FIG. 2 is added above when a new article is registered. Only a certain number of articles are posted on the Web page in FIG. The web page in FIG. 2 has a link “Previous Page” at the bottom, and an old article is posted at the link destination. For example, assume that an index including an article 3012 is created and a link page as shown in FIG. 3 is created.

  FIG. 3 is an image diagram of an example of a link page. The link page of FIG. 3 is expressed by an HTML file as shown in FIG. FIG. 4 is an image diagram of an example of an HTML file representing a link page.

  When the “article 3012” portion of the link page in FIG. 3 is clicked, the page jumps to the Web page that originally contained the article 3012. For example, in the case of the HTML file shown in FIG. 4, a jump is made to the web page “http: //foo/bar1.html”. The link page in FIG. 3 may be a search result of the character string “hoge” or a list of annotated locations.

  However, articles are added to web pages such as news and blogs over time. For example, an article may be added to the Web page in FIG. 2 over time, and may be like the Web page in FIG. 5, for example. FIG. 5 is an image diagram of an example of a Web page to which an article has been added.

  The Web page in FIG. 5 has the same URL as the Web page in FIG. 2, but articles 3014 and 3015 are added, and the articles 3011 and 3012 posted on the Web page in FIG. It has moved to the Web page as shown in FIG. FIG. 6 is an image diagram of an example of a Web page as a navigation link destination. For example, assume that the URL of the Web page in FIG. 6 is “http: //foo/bar2.html”.

  Conventionally, the link page of FIG. 3 stores the location of the item of interest (article 3012) as the physical location “http: //foo/bar1.html” at the time the index is created. If the article 3012 is moved to the web page “http: //foo/bar2.html” after the index is created, the physical position where the article 3012 is not found in the jump from the link page of FIG. The web page “http: //foo/bar1.html” is displayed.

  Therefore, in this embodiment, when trying to access the article 3012 that is the item of interest from the link page, it is not the Web page of the physical position “http: //foo/bar1.html” at the time when the index is created. , Using the navigation link indicated by the anchor “Previous Page”, to jump to the web page of “http: //foo/bar2.html” where the article 3012 which is the current item of interest exists It is.

  That is, in the search system, when the article 3012 on the link page in FIG. 3 is clicked, the Web page in FIG. 6 is displayed instead of the Web page in FIG. In the Web annotation system, the Web page shown in FIG. 7 in which the annotation is added to the Web page in FIG. 6 is displayed. FIG. 7 is an image diagram of an example of the annotation restored to the navigation link destination Web page.

  In the above, for ease of explanation, the article number can be uniquely identified by the article number as in “Article 3010”. The text is the title.

  In general, the movement of articles is not performed randomly, but a navigation link is provided from the Web page of the article movement source to the Web page of the movement destination. The navigation link is a link to a continuous Web page related to the article (resource) with a mark such as “next” or “next”. Conventionally, articles are accessed simply by location information (URL) or feature information.

  In this embodiment, attention is paid to the fact that a navigation link is extended from the Web page that is the source of the article to the Web page that is the destination, and the navigation link is automatically traced when the item of interest (the article of interest) is not found. This makes it possible to access attention items.

(Principle of this embodiment)
FIG. 8 is an explanatory diagram showing the principle of this embodiment. The resource tracking unit 20 of FIG. 8 has a configuration including an attention item information extraction unit 21, a Web information extraction unit 22, an attention item presence confirmation unit 23, a navigation link extraction unit 24, and a navigation execution unit 25.

  The attention item information extraction unit 21 receives the identification information (keyword, article ID, article hash code value, etc.) of the attention item (article, block, etc.) as attention item information together with the address (URL).

  The Web information extraction unit 22 acquires a Web resource (Web page) specified by the address received by the attention item information extraction unit 21. The attention item existence confirmation unit 23 checks whether the Web resource acquired by the Web information extraction unit 22 includes a resource (article) that matches the identification information of the attention item received by the attention item information extraction unit 21. .

  If there is no resource that matches the identification information of the item of interest, the navigation link extraction unit 24 searches for the navigation link of the Web resource based on the anchor character string or the document structure knowledge. The navigation execution unit 25 searches for a Web resource having a resource that matches the identification information of the item of interest while systematically following the navigation link.

  The resource tracking unit 20 repeatedly performs the processes of the Web information extraction unit 22, the item of interest presence check unit 23, the navigation link extraction unit 24, and the navigation execution unit 25 for the address received by the item-of-interest information extraction unit 21 in step S21.

  As described above, the resource tracking unit 20 searches for an attention item by following the navigation link when there is no attention item while confirming the presence of the attention item of the acquired Web resource. If the item of interest has moved from the original location to a location that can be followed by a navigation link, the resource tracking unit 20 can access the target item of interest at any timing.

  This is effective in Internet-related products such as a search system, a Web annotation system, a Web browser, and a bookmark system for a Web page of a type in which articles increase over time for normal Web pages such as news and blogs.

  There are typically the following three systems for jumping from a search or annotation index to a Web page where an item of interest really exists, depending on when the above resources are searched.

  The first system uses a general link for the link page. The first system tracks resources when a link is clicked to jump. The first system is implemented in the form of an extension of a browsing device such as a browser or a dedicated browsing device.

  The second system tracks resources when displaying the link on the link page, and displays the tracked result as a link. The second system is implemented, for example, when the search device displays search results.

  The third system uses a link to a specific location with parameters on the link page. When the link is clicked, the third system performs resource tracking at a specific location, and jumps to the target location based on the tracked result.

  FIG. 9 is a configuration diagram of an example of the resource tracking unit. In this embodiment, it is assumed that attention item identification information for confirming the presence of the attention item is simultaneously held. In this embodiment, the feature of the specified attention item, specifically, the search index becomes the attention item identification information in the search, and in the Web annotation, the peripheral information (peripheral The text, article title, article body, hash code values thereof, etc.) are the item identification information.

  The resource tracking unit 20 in FIG. 9 includes an attention item information extraction unit 21, a Web information extraction unit 22, an attention item presence confirmation unit 23, a navigation link extraction unit 24, a navigation execution unit 25, a Web resource information output unit 26, and a navigation management unit. 27, a navigation link DB 28 and a navigation link table 29.

  The attention item information receiving unit 21 receives attention item identification information together with location information (URL). The Web information extraction unit 22 extracts Web resources corresponding to the location information from the Web server 30. The attention item existence confirmation unit 23 confirms whether or not the attention item exists in the extracted Web resource by using attention item identification information.

  If there is an item of interest in the extracted Web resource, the item-of-interest existence confirmation unit 23 outputs the location information of the Web resource or the Web resource itself from the Web resource information output unit 26.

  If there is no item of interest in the extracted Web resource, the navigation link extraction unit 24 extracts the navigation link from the current Web resource in order to track the item of interest that has moved from the Web resource. The navigation link extraction unit 24 refers to a navigation link table 29 as shown in FIG. 10 and identifies a navigation link from the current Web resource.

  FIG. 10 is a configuration diagram of an example of the navigation link table. The navigation link table 29 describes marks such as “previous page” and “→” attached to the navigation link.

  The navigation link extraction unit 24 notifies the navigation management unit 27 of the extracted navigation link. Since the navigation management unit 27 does not necessarily have one navigation link in one Web resource, the navigation management unit 27 stores the notified navigation link in the navigation link DB 28. The navigation management unit 27 takes out the navigation links from the navigation link DB 28 one by one while managing the navigation links so that the navigation links are not traced in order or not to be repeated.

  Then, the navigation execution unit 25 extracts the location information indicated by the navigation link extracted from the navigation link DB 28 and notifies the Web information extraction unit 22 of the extracted location information.

  For example, a normal search system without the resource tracking unit 20 is as shown in FIG. FIG. 11 is a block diagram showing a normal search system without a resource tracking unit. The user operates the browser 50 to input a query such as a keyword into the search device 40. The search device 40 performs a search using a query input by the user.

  Specifically, the search device 40 constructs a logical expression of a key from the query and obtains location information based on the index table. FIG. 12 is a configuration diagram of an example of an index table. The index table associates keys with location information. Note that a part for constructing a logical expression of a key from a query is not the essence of the present embodiment, and therefore, a single key will be described as an example here.

  For example, in the case of the index table of FIG. 12, if “hoge” is given as a query, the search device 40 obtains “foo / bar1.html” and “foo / bar9.html” as location information from the index table. Then, the search device 40 creates a search result HTML document 41 by combining the location summaries, and displays the search result of FIG. 13 on the browser 50 as a link page.

  FIG. 13 is an image diagram of an example of a search result screen. The user clicks a link to the Web resource (for example, a part displayed as “foo / bar1 title”) in the search result 41 in order to access the Web resource of the entity.

  The browser 50 retrieves the Web resource 31 corresponding to the address of the clicked link destination “foo / bar1.html” from the Web server 30, and displays the Web resource 31. In the present embodiment, whether or not the search is a search is not essential, and may be a link to an item of interest. In the following description, the description will be given with reference to the link page of FIG.

  In the link page of FIG. 3, the HTML of the article 3012 is as shown in FIG. 4. When the link of the article 3012 is clicked, the web page as shown in FIG. 5 corresponding to the address “http: //foo/bar1.html” Will be displayed.

  For example, a search system with the resource tracking unit 20 is as shown in FIG. FIG. 14 is a block diagram of a first embodiment of a search system having a resource tracking unit. The search system shown in FIG. 14 tracks resources when clicking on a link to access the Web resource 31, and displays the Web resource 31 in which the item of interest truly exists.

  The user operates the browser 50 and inputs a keyword to the search device 40. The search device 40 performs a search using a keyword input by the user. The search device 40 displays the search result 41 as a link page on the browser 50. The processing so far is the same as that of a normal search system.

  The search system of FIG. 14 is different from the search system of FIG. 11 in that the keyword input by the user is held as the resource-of-interest identification information 60. The user clicks a link to the Web resource from the search result 41 in order to access the Web resource of the entity.

  The browser 50 does not simply retrieve the Web resource 31 corresponding to the clicked link destination address from the Web server 30, but performs resource tracking from the link destination address (location information) and the target resource identification information 60. The Web resource 31 that has a truly noticeable item is displayed. The resource tracking unit 60 may be realized as an extension of the browser 50, or may be a dedicated browser 50 having the resource tracking unit 60.

  The search system shown in FIG. 14 is completely different from the search system shown in FIG. 11 and the HTML of the search result 41, but when the link of the article 3012 is clicked, “http: //foo/bar1.html” is displayed. The web page “http: //foo/bar2.html”, that is, the web page of FIG. 6 is displayed.

  FIG. 15 is a configuration diagram of a second embodiment of a search system having a resource tracking unit. When displaying the search result, the search system of FIG. 15 does not simply display the link, but tracks resources and rewrites and displays the link at the address where the item of interest really exists.

  The user operates the browser 50 and inputs a keyword to the search device 40. The search device 40 performs a search using a keyword input by the user. The search device 40 displays the search result 41 as a link page on the browser 50. At this time, the search device 40 does not simply display the link of the search result 41 but causes the resource tracking unit 20 to track the resource.

  That is, the resource tracking unit 20 uses the keyword given to the search device 40 as attention resource identification information to check whether or not the attention item exists at the destination indicated by each link. The link is rewritten to the location information (URL) of the Web resource 31 in which is found, and is presented to the user.

  Since the link has already been rewritten, the browser 50 then retrieves the Web resource 31 corresponding to the clicked link destination address from the Web server 30 if the user clicks on the link, and the item of interest is truly the item of interest. A Web resource 31 with a certain number is displayed. In the search system of FIG. 15, it is confirmed whether or not the item of interest exists at the destination indicated by each link, and if not, the navigation link is followed to link the location information (URL) of the Web resource 31 where the item of interest is found. Rewrite and present it to the user.

  For example, in the case of the HTML file of FIG. 4, the search system of FIG. 15 follows the navigation link and rewrites the link to the location information (URL) of the Web resource 31 where the item of interest is found. FIG. 16 is an image diagram of an example of an HTML file in which the link is rewritten to the location information of the Web resource in which the item of interest is found.

  In the case of the HTML file in FIG. 16, when the “article 3012” portion of the link page in FIG. 3 is clicked, the web page “http: //foo/bar2.html”, that is, the web page in FIG. 6 is displayed. become.

  FIG. 17 is a flowchart showing the processing procedure of the search system of FIG. In step S1, the search device 40 receives a keyword from the user. In step S2, the search device 40 obtains a location set from the index table. In step S3, the resource tracking unit 20 obtains the current location for each element of the location set. The resource tracking unit 20 can obtain the current location for each element of the location set by obtaining the location information obtained from the index table and the keyword as the noticed item identification information.

  In step S4, the resource tracking unit 20 assigns and outputs the current location to each element of the location set as the search result 41. In step S4, for example, as shown in FIG. 18, a search result screen as shown in FIG. 18 in which the title name of the link destination is also corrected may be output. FIG. 18 is an image diagram of another example of the search result screen.

  FIG. 19 is a configuration diagram of a third embodiment of a search system having a resource tracking unit. The search system of FIG. 19 does not simply display the link when displaying the search result, but rewrites the address + parameter of the specific Web server 62 into the link and displays it.

  The user operates the browser 50 and inputs a keyword to the search device 40. The search device 40 performs a search using a keyword input by the user. The search device 40 displays the search result 41 as a link page on the browser 50. At this time, the search device 40 does not simply display the link of the search result 41 as in the search system of FIG. However, the search system of FIG. 10 does not track resources at this time, and the link processing unit 61 simply rewrites the link in the form of the address of the specific Web server 62 + the parameter.

  For example, if the URL of the search result of the keyword “hoge” is “foo / bar1.html” and the URL of the specific Web server 62 is “http: // tracking”, the link processing unit 61 converts the link to “http : // tracking? kw = hoge & url = foo% 2Fbar1.html ”. The browser 50 displays the search result as a link page.

  When a user clicks a link to access "foo.html", "http: // tracking? Kw = hoge & url = foo% 2Fbar1.html" is actually accessed. That is, “http: // tracking” is accessed as the specific Web server 62. The keyword “hoge” and the location information “foo% 2Fbar1.html” are passed to the resource tracking unit 20 as specific item identification information to the specific Web server 62, and resource tracking is executed. Therefore, the browser 50 can display the Web resource 31 with the item of interest truly.

  For example, in the case of the HTML file of FIG. 4, the link is rewritten to the address of the specific Web server 62 + parameter “http: // tracking? Kw = hoge & url = foo% 2Fbar1.html” in the search system of FIG.

  FIG. 20 is an image diagram of an example of an HTML file in which a link is rewritten to a specific Web server address + parameter.

  In the case of the HTML file of FIG. 20, when the “article 3012” portion of the link page of FIG. 3 is clicked, “http: // tracking” is accessed as the specific web server 62 and the keyword “hoge” is used as the specific item identification information. As a result of the location information “foo% 2Fbar1.html” being passed from the specific Web server 62 to the resource tracking unit 20 and the tracking of the resources being executed, “http: //foo/bar2.html” that is truly the item of interest ", That is, the Web resource 31 shown in FIG. 6 is displayed.

  Although the search system has been described above as an example, in the case of a Web annotation system, the search device 40 of the search system may be replaced with a device that acquires information from the Web annotation DB.

  FIG. 21 is a flowchart illustrating an example of the processing procedure of the resource tracking unit. In step S11, the item-of-interest information receiving unit 21 of the resource tracking unit 20 receives location information (URL) and item-of-interest identification information. In step S 12, the Web information extraction unit 22 extracts Web resources corresponding to the location information from the Web server 30.

  In step S13, the attention item existence confirmation unit 23 confirms whether attention item identification information exists in the extracted Web resource (whether the attention item exists). If there is an item of interest in the extracted web resource (YES in step S14), the item of interest presence confirmation unit 23 proceeds to step S16, and the location information of the web resource or the web resource itself is sent from the web resource information output unit 26. Is output (in general, display) for the Web resource extracted in step S12. In addition to simple display as processing for the extracted Web resource, for example, in the case of a Web annotation system, there are processing of annotation (display with annotation added) and processing of downloading a specified Web resource. .

  If the noticed item does not exist in the extracted Web resource (NO in step S14), the navigation link extracting unit 24 proceeds to step S15, and tracks the noticed item that has moved from the web resource. Search for navigation links from Web resources. If there is a navigation link in the current Web resource (YES in step S17), the navigation link extraction unit 24 proceeds to step S18 and extracts the navigation link. The navigation execution unit 25 notifies the navigation management unit 27 of the location information of the navigation link destination extracted by the navigation link extraction unit 24 as new location information, and then returns to the process of step S12.

  If there is no navigation link in the current Web resource (NO in step S17), the navigation link extraction unit 24 proceeds to step S19 and determines that the item of interest has not been found. The navigation execution unit 25 performs processing (exception processing or the like) when it is not found. Specifically, for example, a message is output to display the Web resource indicated by the original location information (URL).

  If one navigation link is always found correctly, the processing shown in FIG. 21 is sufficient. However, there may actually be a plurality of navigation link candidates. FIG. 22 shows an example of a screen having a plurality of navigation link candidates. In the screen of FIG. 22, there are “previous page” and “next page” as navigation link candidates, but the link to the temporal past is ambiguous.

  As described above, as an embodiment for dealing with the case where the navigation link candidates are ambiguous, the navigation link candidates are registered in the queue, and the navigation link candidates registered in the queue are taken in and out. The navigation link candidate to be searched next is obtained. For the above processing, a navigation management unit 27 and a queue for storing a queue are required. For queue management, algorithms such as depth-first search and best-first search are well known (the details are omitted because these are basic computer search algorithms).

  The attention item existence confirmation unit 23 confirms whether attention item identification information exists in the Web resource extracted by the Web information extraction unit 22. The typical attention item existence confirmation unit 23 confirms whether attention item identification information exists in the Web resource by a character string search (for example, a UNIX (registered trademark) fgrep command).

  For example, if the item of interest identification information is a character string “title of article 3012”, it is determined whether or not the item of interest exists depending on whether or not the character string “title of article 3012” exists in the Web resource. It is.

  The somewhat advanced attention item existence confirmation unit 23 uses an information structure. For example, in the HTML file of FIG. 23, the Web resource is composed of a plurality of articles, and the title of each article is specified by the value “entry-header” of the class attribute. Another attention item existence confirmation unit 23 can use the hash value of the article (the text in the class attribute value “entry” in FIG. 23) instead of the article title.

  The attention item existence confirmation unit 23 uses a specific structure of the HTML file and collation information in the structure, and performs the processing shown in FIG. FIG. 24 is a flowchart illustrating an example of a processing procedure of the attention item presence confirmation unit.

  Proceeding to step S21, the notable item presence confirmation unit 23 captures the Web resource (HTML file) acquired by the Web information extraction unit 22. In step S22, the notable item existence confirmation unit 23 searches the fetched Web resource for a tag having a specified attribute / value pair.

  The process proceeds to step S23, and if the target item existence confirmation unit 23 does not find a tag having the specified attribute / value pair, the process proceeds to step S24 to extract that the target item does not exist in the fetched Web resource. Return to section 24. When the tag having the specified attribute / value pair is found, the attention item existence confirmation unit 23 proceeds to step S25, and determines whether or not the content of the tag matches the content being searched. If the content of the found tag matches the content being searched, the attention item existence confirmation unit 23 proceeds to step S26, and returns to the Web resource information output unit 26 that the attention item exists in the fetched Web resource. If the content of the found tag does not match the content being searched for, the attention item existence confirmation unit 23 returns to the process of step S22.

  FIG. 25 is a flowchart illustrating an example of the processing procedure of the navigation link extraction unit. In step S31, the navigation link extraction unit 24 extracts all link information in the Web resource (Web page).

  For example, in the HTML file, the navigation link extracting unit 24 extracts the anchor text surrounded by the “a” tag and the value of the href attribute of the “a” tag. In addition, the navigation link extraction unit 24 extracts the alt attribute as necessary (the alt attribute is an alternative to the anchor text, such as when the anchor is not a text but an image).

  Proceeding to step S32, the navigation link extracting unit 24 obtains the likelihood of the extracted link information using the information such as anchor text, link destination, position in the document, and the like. Proceeding to step S33, the navigation link extracting unit 24 selects link information based on the likelihood of the navigation link of each link information to obtain a navigation link. The selection of link information may be such that one or none is selected, or a priority may be given to the likelihood of navigation links, and a search algorithm may be used to follow navigation links in order from what seems to be navigation links. .

  For example, the navigation link likelihood is checked as follows. Whether or not the link information is a navigation link does not have a clear standard, so the likelihood of a navigation link is obtained by heuristics.

  In general, navigation links are used by viewers of the Web page to search a series of information. ”), The position in the document (generally near the end of the document) and the URL pattern that the link destination clue (xxx / 1.html should be xxx / 2.html because movement is done systematically) ) Is available.

  FIG. 26 is a configuration diagram of an example of an apparatus that implements the resource tracking unit 20. 26 includes an input device 71, an output device 72, a drive device 73, an auxiliary storage device 74, a main storage device 75, an arithmetic processing device 76, and an interface device 77 connected to each other via a bus B. Is done.

  The input device 71 includes a keyboard and a mouse, and is used for inputting various signals. The output device 72 includes a display device and is used to display various windows and data. The interface device 77 includes a modem, a LAN card, and the like, and is used for connecting to a network.

  The program according to the present embodiment is at least a part of various programs that control the resource tracking unit 20. The program is provided, for example, by distributing the recording medium 78 or downloading from the network. The recording medium 78 on which the program is recorded is a recording medium that records information optically, electrically, or magnetically, such as a CD-ROM, flexible disk, magneto-optical disk, etc., and information is electrically stored such as a ROM, flash memory, etc. Various types of recording media, such as a semiconductor memory for recording data, can be used.

  When the recording medium 78 on which the program is recorded is set in the drive device 73, the program is installed from the recording medium 78 to the auxiliary storage device 74 via the drive device 73. The program downloaded from the network is installed in the auxiliary storage device 74 via the interface device 77.

  The auxiliary storage device 74 stores the installed program and stores necessary files, data, and the like. The main storage device 75 reads and stores the program from the auxiliary storage device 74 at the time of activation. The arithmetic processing unit 76 implements various processes as described above in accordance with a program stored in the main storage device 75.

The present invention may have the following configurations as described below.
(Appendix 1)
A web resource tracking management program for causing a computer to track the resource moved from a first web resource including one or more resources per page to another web resource,
The computer,
Receiving means for receiving a correspondence relationship between the location information of the first Web resource and target resource identification information for identifying the target resource included in the first Web resource;
Retrieval means for retrieving the Web resource corresponding to the location information selected by the user;
Presence checking means for confirming whether or not the attention resource exists in the Web resource extracted by the extraction means, based on the attention resource identification information;
Extraction means for extracting a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted by the extraction means;
Tracking means for notifying the take-out means of the location information indicated by the link extracted by the extraction means as the next location information;
A Web resource tracking management program for causing a Web resource to function as a transmission unit for transmitting the Web resource to the user terminal if the resource of interest exists in the Web resource extracted by the extraction unit.
(Appendix 2)
The extraction means extracts a link to the other Web resource included in the Web resource based on a table means indicating one or more types of links to the other Web resource included in the Web resource. The Web resource tracking management program according to appendix 1, which is characterized.
(Appendix 3)
The presence confirmation unit is configured to confirm whether the target resource exists in the Web resource extracted by the extraction unit, using a keyword, a resource number, or a hash code value of the resource as the target resource identification information. The Web resource tracking management program according to Supplementary Note 1 or 2.
(Appendix 4)
In the first Web resource, the number of the resources included in one page is limited, and the first Web resource corresponds to the location information indicated by the link in order from the old resource so that the number of the resources does not exceed the limit. The Web resource tracking management program according to any one of appendices 1 to 3, wherein the Web resource tracking management program is moved to another Web resource.
(Appendix 5)
A web resource tracking management apparatus for tracking the resource moved from a first web resource including one or more resources in one page to another web resource,
Receiving means for receiving a correspondence relationship between the location information of the first Web resource and target resource identification information for identifying the target resource included in the first Web resource;
Retrieval means for retrieving the Web resource corresponding to the location information selected by the user;
Presence checking means for confirming whether or not the attention resource exists in the Web resource extracted by the extraction means, based on the attention resource identification information;
Extraction means for extracting a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted by the extraction means;
Tracking means for notifying the take-out means of the location information indicated by the link extracted by the extraction means as the next location information;
A Web resource tracking management apparatus comprising: a transmission unit configured to transmit the Web resource to the user terminal if the resource of interest exists in the Web resource extracted by the extraction unit.
(Appendix 6)
A web resource tracking management method for tracking the resource moved from a first web resource including one or more resources per page to another web resource, which is executed by a computer,
The computer is
A receiving procedure for receiving correspondence between the location information of the first Web resource and the target resource identification information for identifying the target resource included in the first Web resource;
An extraction procedure for retrieving the Web resource corresponding to the location information selected by the user;
A presence confirmation procedure for confirming whether or not the target resource exists in the Web resource extracted in the extraction procedure by the target resource identification information;
An extraction procedure for extracting a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted in the extraction procedure;
A tracking procedure for notifying the extraction means of the location information indicated by the link extracted in the extraction procedure as the next location information;
A Web resource tracking management method comprising: executing a transmission procedure for transmitting the Web resource to the user terminal if the resource of interest exists in the Web resource extracted in the extraction procedure.

  The present invention is not limited to the specifically disclosed embodiments, and various modifications and changes can be made without departing from the scope of the claims.

It is a schematic diagram of an example showing an example in which an article moves into a Web page specified by a URL different from the first URL. It is an image figure of an example of a web page. It is an image figure of an example of a link page. It is an image figure of an example of the HTML file expressing a link page. It is an image figure of an example of the web page to which the article was added. It is an image figure of an example of the web page of a navigation link destination. It is an image figure of an example of the annotation decompress | restored to the web page of the navigation link destination. It is explanatory drawing showing the principle of a present Example. It is a block diagram of an example of a resource tracking part. It is a block diagram of an example of a navigation link table. It is a block diagram showing the normal search system without a resource tracking part. It is a block diagram of an example of an index table. It is an image figure of an example of a search result screen. It is a block diagram of the 1st Example of the search system with a resource tracking part. It is a block diagram of the 2nd Example of the search system with a resource tracking part. It is an image figure of an example of the HTML file which rewritten the link to the location information of the Web resource where the attention item was found. It is a flowchart showing the process sequence of the search system of FIG. It is an image figure of the other example of a search result screen. It is a block diagram of the 3rd Example of the search system with a resource tracking part. It is an image figure of an example of the HTML file which rewritten the link to the address + parameter of a specific Web server. It is a flowchart of an example showing the process sequence of the resource tracking part. It is an example of a screen with a plurality of navigation link candidates. It is an image figure of an example of an HTML file. It is a flowchart of an example showing the process sequence of the attention item presence confirmation part. It is a flowchart of an example showing the process sequence of the navigation link extraction part. 2 is a configuration diagram of an example of an apparatus that implements a resource tracking unit 20; FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 Resource tracking part 21 Attention item information extraction part 22 Web information extraction part 23 Attention item presence confirmation part 24 Navigation link extraction part 25 Navigation execution part 26 Web resource information output part 27 Navigation management part 28 Navigation link DB
DESCRIPTION OF SYMBOLS 29 Navigation link table 30 Web server 31 Web resource 40 Search apparatus 41 Search result 50 Browser 60 Attention resource identification information 61 Link processing part 62 Specific Web server 71 Input apparatus 72 Output apparatus 73 Drive apparatus 74 Auxiliary storage apparatus 75 Main storage apparatus 76 Arithmetic processing device 77 Interface device

Claims (6)

A web resource tracking management program for causing a computer to track the resource moved from a first web resource including one or more resources per page to another web resource,
The computer,
Receiving means for receiving a correspondence relationship between the location information of the first Web resource and target resource identification information for identifying the target resource included in the first Web resource;
Retrieval means for retrieving the Web resource corresponding to the location information selected by the user;
Presence checking means for confirming whether or not the attention resource exists in the Web resource extracted by the extraction means, based on the attention resource identification information;
Extraction means for extracting a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted by the extraction means;
Tracking means for notifying the take-out means of the location information indicated by the link extracted by the extraction means as the next location information;
A Web resource tracking management program for causing a Web resource to function as a transmission unit for transmitting the Web resource to the user terminal if the resource of interest exists in the Web resource extracted by the extraction unit.   The extraction means extracts a link to the other Web resource included in the Web resource based on a table means indicating one or more types of links to the other Web resource included in the Web resource. The Web resource tracking management program according to claim 1, wherein:   The presence confirmation unit is configured to confirm whether the target resource exists in the Web resource extracted by the extraction unit, using a keyword, a resource number, or a hash code value of the resource as the target resource identification information. The Web resource tracking management program according to claim 1 or 2.   In the first Web resource, the number of the resources included in one page is limited, and the first Web resource corresponds to the location information indicated by the link in order from the old resource so that the number of the resources does not exceed the limit. 4. The Web resource tracking management program according to claim 1, wherein the Web resource tracking management program is moved to another Web resource. A web resource tracking management apparatus for tracking the resource moved from a first web resource including one or more resources in one page to another web resource,
Receiving means for receiving a correspondence relationship between the location information of the first Web resource and target resource identification information for identifying the target resource included in the first Web resource;
Retrieval means for retrieving the Web resource corresponding to the location information selected by the user;
Presence checking means for confirming whether or not the attention resource exists in the Web resource extracted by the extraction means, based on the attention resource identification information;
Extraction means for extracting a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted by the extraction means;
Tracking means for notifying the take-out means of the location information indicated by the link extracted by the extraction means as the next location information;
A Web resource tracking management apparatus comprising: a transmission unit configured to transmit the Web resource to the user terminal if the resource of interest exists in the Web resource extracted by the extraction unit. A web resource tracking management method for tracking the resource moved from a first web resource including one or more resources per page to another web resource, which is executed by a computer,
The computer is
A receiving procedure for receiving correspondence between the location information of the first Web resource and the target resource identification information for identifying the target resource included in the first Web resource;
An extraction procedure for retrieving the Web resource corresponding to the location information selected by the user;
A presence confirmation procedure for confirming whether or not the target resource exists in the Web resource extracted in the extraction procedure by the target resource identification information;
An extraction procedure for extracting a link to the other Web resource included in the Web resource if the resource of interest does not exist in the Web resource extracted in the extraction procedure;
A tracking procedure for notifying the extraction means of the location information indicated by the link extracted in the extraction procedure as the next location information;
A Web resource tracking management method comprising: executing a transmission procedure for transmitting the Web resource to the user terminal if the resource of interest exists in the Web resource extracted in the extraction procedure.

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