JP6104729B2 - Content search system, content search method, and content search program - Google Patents

Description

  The present invention relates to a content search system, a content search method, and a content search program for searching for content on a network.

  In a conventional content search system, as described in, for example, Patent Document 1, a text is extracted from previously collected content according to an extraction rule for extracting the text of the content, and a search index is used using the extracted text. Have created. In this content search system, when a search request by a search keyword is received, the created search index is searched, and all or part of the text extracted from the content collected in advance as the search result is displayed.

  Also, in the conventional content search system, as described in Patent Document 2, for example, a content body used for creating a search index is extracted using a content link relationship without using an extraction rule. It has been. In this content search system, a link destination HTML file is specified based on a hyperlink existing in a link source HTML file collected in advance, and the text information in the link destination HTML file and the link source hyperfile are specified. By comparing the character string around the link, the body part is extracted from the linked HTML file.

JP 2004-220251 A JP 2013-30041 A

  However, in the content search system described in Patent Document 1, the text displayed as the search result is extracted from the previously collected content according to the extraction rule. Therefore, for example, even if there is a correction or change in the content at the time when the search is requested, only the text of the content before the correction or change can be displayed as the search result.

  Further, as in the technique described in Patent Document 2, even if the content link relation is used without using the extraction rule as the content body extraction method, the extracted body text is collected in advance from the link source HTML file. ing. For this reason, the text of the content displayed as the search result is extracted from the linked HTML files collected in advance. Therefore, as in the technique described in Patent Document 1, the text of the latest content may not be displayed as a search result.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a content search system, a content search method, and a content search program capable of displaying the text of the latest content as a search result.

  A content search system according to an aspect of the present invention is a content search system including a search server device and a search client device, wherein the search server device includes information collection means for acquiring content from a communication network, and information Information is collected based on the extraction rule holding means for holding the extraction rule for extracting the body text of the content acquired by the collecting means in association with the storage destination information of the content, and the extraction rule held by the extraction rule holding means Text extracting means for extracting the body of the content acquired by the means, registration means for registering the body of the content extracted by the text extracting means in the search index in association with information about the content including the storage location information of the content, Detect search requests to search for content When received from the client device, a specific search index is extracted from the search index based on the search request, the storage location information of the content corresponding to the specific search index, and the content extracted from the extraction rule holding means Either a combination with a specific extraction rule corresponding to the storage location information or a content body registered in a specific search index is selected based on information about the content and returned to the client device The search client device transmits a search request to the search unit of the search server device, and a combination of content storage destination information returned by the search unit as a search result and a specific extraction rule or Receives the content text and uses the received content storage location information Information acquisition means for acquiring content from a communication network, latest text extraction means for extracting the body of the content according to a specific extraction rule received from the search server device after the content is acquired by the information acquisition means, and information acquisition means Display means for displaying the body of the content received by or the content body extracted by the latest text extraction means.

  Alternatively, a content search method according to another aspect of the present invention is a content search method for searching for content by a search server device and a search client device, and the search server device acquires content from a communication network. An information collection step, an extraction rule holding step for holding an extraction rule for extracting the text of the content acquired in the information collection step in association with the storage location information of the content, and an extraction rule held in the extraction rule holding step A text extraction step for extracting the body of the content acquired in the information collection step, and the content body extracted in the text extraction step in association with information about the content including the content storage location information in the search index To register Step and when a search request for searching for content is received from the search client device, based on the search request, a specific search index is extracted from the search index, and content storage location information corresponding to the specific search index And the combination of the specific extraction rule corresponding to the storage location information of the content extracted in the extraction rule holding step, or the content body registered in the specific search index, the content storage location information A search step that selects and returns to the client device based on the search information, and the search client device sends a search request to the search server device and specifies the storage location information of the content returned in the search step as the search result In combination with extraction rules or content body An information acquisition step of acquiring content from a communication network using the storage location information of the received content, and after the content is acquired in the information acquisition step, the specific extraction rule received from the search server device A latest text extracting step for extracting a body, and a display step for displaying the body of the content received in the information acquisition step or the body of the content extracted in the latest text extracting step.

  Alternatively, a content search program according to another aspect of the present invention is a content search program for searching for content by a search server device and a search client device, and a computer that operates as the search server device is connected to a communication network. Information collection means for acquiring content, extraction rule holding means for holding the extraction rule for extracting the body of the content acquired by the information collection means in association with content storage location information, and holding by the extraction rule holding means A text extracting unit that extracts the body of the content acquired by the information collecting unit, and the content body extracted by the text extracting unit is associated with information about the content including the content storage location information Search index When a registration means for registration and a search request for searching for content are received from the search client device, a specific search index is extracted from the search index based on the search request, and the content corresponding to the specific search index is extracted. Either the combination of the storage location information and the specific extraction rule corresponding to the storage location information of the content extracted from the extraction rule holding means, or the content text registered in the specific search index is related to the content. A computer that operates as a search client device is selected based on information and returned to the client device, and a search request is transmitted to the search device of the search server device, and the search result is returned by the search device. Content storage location information and specific extraction rules Received from the search server device after the content is acquired by the information acquisition means, the information acquisition means for acquiring the content from the communication network using the storage location information of the received content The latest text extraction unit that extracts the content body according to a specific extraction rule and the display unit that displays the content body received by the information acquisition unit or the content body extracted by the latest text extraction unit.

  According to any one of the above aspects of the present invention, content is acquired from the communication network on the search server device side, and the content body is extracted based on the extraction rule held in association with the storage location information of the content. . The body of the extracted content is registered in the search index in association with information about the content including the content storage location information. When the search server device receives a search request for searching for content from the search client device, the search server device extracts a specific search index from the search index based on the search request and searches for information corresponding to the search index. Return to client device. At this time, the search server device, based on the information about the content, combines the storage location information of the content corresponding to the specific search index and the specific extraction rule corresponding to the storage location information of the content, or the specific Any of the texts of the contents registered in the search index can be used as information to be returned to the search client device. The search client device transmits a search request to the search server device and receives the combination of content storage location information and a specific extraction rule or the content text as the search result, thereby storing the content storage location information. The content can be acquired from the communication network, and the text can be extracted from the acquired content according to the specific extraction rule received from the search server device. Therefore, for example, when the content text received from the search server device is not the latest, the latest content text can be acquired and displayed on the search client device side as necessary. For example, when the text of the content received from the search server device is the latest, it is possible to display the text of the received content without acquiring the content text again on the search client device side. As described above, the latest content text can be displayed as a search result.

Further, the information on the content includes registration date / time information on the date / time when the text of the content is registered in the search index, and the search unit is configured to perform registration of the text of the content registered in the specific search index based on the registration date / time information. It is determined whether or not the date / time is newer than the predetermined date / time, and if the registration date / time is not newer than the predetermined date / time, the storage location information of the content corresponding to the specific search index and the extraction rule holding means If the combination with the specific extraction rule corresponding to the storage location information of the content to be extracted is returned to the search client device and the registration date is newer than the predetermined date, the content registered in the specific search index Is preferably returned to the search client device. According to this configuration, when the date and time of registration of the text of the content is not newer than the predetermined date and time, the search server device side sends to the search client device side the relevant content storage location information and the extraction rule. The combination will be returned. Therefore, on the search client device side, the latest content text can be extracted and displayed from the communication network by using the content storage location information received from the search server device side and the specific extraction rule. . When the registration date is newer than the predetermined date, the text of the corresponding content is returned as a search result from the search server device side to the search client device side. Therefore, on the search client device side, it is possible to display the content text whose extracted date is newer than the predetermined date. As described above, the latest content text can be displayed as a search result.

  Further, the search means determines whether the storage location information of the content corresponding to the specific search index is the storage location information of the specific content, and the storage location information of the content is the storage location information of the specific content. In some cases, the combination of the specific content storage location information and the specific extraction rule corresponding to the specific content storage location information extracted from the extraction rule holding means is returned to the search client device, and the content When the storage location information is not the storage location information of the specific content, it is preferable to return the text of the content registered in the specific search index to the search client device. According to this configuration, for example, when the content storage location information is specific content storage location information in which the content is frequently updated, the search client device side can update the latest information from the communication network. The content text can be extracted and displayed.

  The search means returns a specific extraction rule as link information, and the information acquisition means acquires and acquires the extraction rule corresponding to the link information from the communication network using the link information returned by the search means. It is preferable to cache the extracted rules. According to this configuration, on the search client device side, based on the link information received from the search server device side, the extraction rule corresponding to the link information can be held and used. Accordingly, the latest content can be acquired using the extraction rule cached on the search client device side without receiving the extraction rule from the search server device side. As a result, the content search process can be made more efficient.

  Further, the information acquisition means determines whether the date and time when the specific extraction rule was cached last time is new according to a predetermined standard, and the date and time when the specific extraction rule is cached is not new according to the predetermined standard. In this case, it is preferable to acquire the extraction rule corresponding to the link information from the communication network using the link information returned by the search means, and cache the acquired extraction rule again. According to this configuration, the link received from the search server device side on the search client device side when the date and time when the specific extraction rule returned from the search server device side was cached last time is not new according to a predetermined standard The extraction rule corresponding to the link information can be acquired from the communication network using the information, and the extraction rule cached in the search client device can be updated. Thereby, in a search client apparatus, a content can be acquired using the newest extraction rule. As a result, content can be extracted appropriately.

  Further, the information acquisition means determines whether or not the content storage location information corresponding to the specific search index is the specific content storage location information, and the content storage location information is the specific content storage location information. In some cases, it is preferable to acquire the extraction rule corresponding to the link information from the communication network using the link information returned by the search means, and cache the acquired extraction rule again. According to this configuration, when the content storage location information indicated by the specific search index is the specific content storage location information, the search client device updates the extraction rule cached in the search client device. be able to. Thus, for example, when the storage location information of content is storage location information of a specific content in which the content content is frequently updated, the latest extraction acquired from the communication network on the search client device side Content items can be extracted and displayed using rules. As a result, the content can be appropriately extracted in accordance with the update of the content.

  According to the present invention, it is possible to provide a content search system, a content search method, and a content search program that can display the text of the latest content as a search result.

It is a block diagram which shows the functional structure of the web content search system which concerns on one Embodiment. It is a figure which shows the hardware constitutions of the search server apparatus and search client apparatus which are shown in FIG. It is a sequence diagram which shows operation | movement of the basic search process by the Web content search system shown in FIG. 3 is a flowchart for explaining a processing procedure in which the search server device shown in FIG. 1 makes a search response based on search index registration date / time information in the text of Web content. It is a figure which shows the search list which a search server apparatus produces in the process sequence shown in FIG. 3 is a flowchart for explaining a processing procedure in which the search server device shown in FIG. 1 makes a search response based on a URL of Web content. It is a figure which shows the search list which a search server apparatus produces in the process sequence shown in FIG. It is a flowchart explaining the process sequence in which the search server apparatus shown in FIG. 1 performs a search response based on the complexity of an extraction rule. It is a figure which shows the search list which a search server apparatus produces in the process sequence shown in FIG. It is a sequence diagram which shows the operation | movement of a search process in case the search client apparatus shown in FIG. 1 caches an extraction rule. 6 is a flowchart for explaining a processing procedure when the search client device shown in FIG. 1 updates the extraction rule cache based on the cached date and time information of the extraction rule. It is a figure which shows the search result list | wrist received from a search server apparatus in the process sequence shown in FIG. 6 is a flowchart for explaining a processing procedure when the search client device shown in FIG. 1 updates an extraction rule cache based on a URL of Web content. It is a figure which shows the search result list | wrist received from a search server apparatus in the process sequence shown in FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  First, a functional configuration of a content search system according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a functional configuration of a Web content search system according to an embodiment. As shown in FIG. 1, the Web content search system 1 includes a search server device 10 and a search client device 20. The search server device 10 and the search client device 20 are connected to each other via a communication network 30. The communication network 30 includes a server that holds a plurality of Web contents.

  The search server device 10 includes an information collection unit 11, an extraction rule holding unit 12, a text extraction unit 13, a search index registration unit 14, and a search unit 15 as functional components. The search client device 20 includes an information acquisition unit 21, a latest text extraction unit 22, and a display unit 23 as functional components. Hereinafter, each configuration will be described in detail.

  The information collection unit 11 is an information collection unit that acquires Web content from the communication network 30. The information collection unit 11 acquires Web content including document data, multimedia data, etc. provided or distributed on a communication network 30 such as the Internet or an intranet from a server functioning as a Web site as needed.

  The extraction rule holding unit 12 is an extraction rule holding unit that holds an extraction rule for extracting the text of the Web content acquired by the information collecting unit 11 in association with the storage destination information of the Web content. The text of the Web content is a part that originally includes information that the website wants to provide or distribute, and is a part that excludes unnecessary parts such as an advertisement part and a menu part. In addition, the text of the Web content in the present invention includes not only the text itself but also a title and an image URL. As the extraction rule for extracting the text of the Web content, a conventionally known extraction rule can be applied. For example, the extraction rule described in Patent Document 1 (Japanese Patent Laid-Open No. 2004-220251) can be used. it can. The Web content storage location information is, for example, a URL (Uniform Resource License) indicating the storage location of the Web content. The extraction rule is held in association with the URL. Further, the extraction rule holding unit 12 may hold the extraction rule as link information. The extraction rule holding unit 12 has, for example, a database in which URLs of Web content, extraction rules, and update date / time information indicating the date / time when the extraction rules are updated are associated with each other.

  The text extraction unit 13 is a text extraction unit that extracts the body of the Web content acquired by the information collection unit 11 based on the extraction rules held by the extraction rule holding unit 12. The text extraction unit 13 reads the extraction rule from the extraction rule holding unit 12, and applies the extraction rule to the Web content, thereby extracting the text of the Web content.

  The search index registration unit 14 is a registration unit that registers the body of the Web content extracted by the text extraction unit 13 in the search index in association with information about the content including the Web content storage location information. Examples of the information related to the content including the storage destination information of the Web content include URL of the Web content and registration date / time information that is the date / time when the text of the Web content is registered in the search index. The search index registration unit 14 has, for example, a database that associates the search index, the URL of the Web content, the text of the Web content that is the basis of the search index, and the registration date and time information.

  The search unit 15 is a search unit that returns a search result based on a search request from the search client device 20. When the search unit 15 receives a search request for searching Web content from the search client device 20, the search unit 15 extracts a specific search index from the search index based on the search request. Then, the search unit 15 combines the URL of the Web content associated with the specific search index and the specific extraction rule determined using the URL, or the Web content registered in the specific search index. One of the texts is selected based on the information about the Web content and returned to the search client device 20. The specific extraction rule to be returned to the search client device 20 is extracted from the extraction rules held in the extraction rule holding unit 12 based on the URL of the Web content associated with the specific search index.

  Specifically, the search unit 15 creates a search result list by listing information about Web contents corresponding to the extracted specific search index. For example, the search unit 15 lists the search index of the corresponding Web content and information related to the Web content associated therewith as the search result. The items of information related to the Web content included in the search result list include, for example, the URL of the Web content, the date and time when the text of the Web content was registered (registration date information), the Web content extraction rule, and the title, text, and image URL. And the body of Web content including Among the items, the URL of the Web content and the registration date / time information of the Web content are the URL and registration date / time of the Web content when the text content of the Web content is registered in the search index by the search index registration unit 14. Is set in the search result list. The other items are selectively set as necessary based on information on the Web content. Specifically, either the Web content extraction rule or the Web content text is selected and set in the search result list on the condition of the registration date information and URL of the Web content described above.

  The search unit 15 refers to the search result list set as described above, and extracts and returns information to the search client device 20 side. For example, the search unit 15 determines that the date and time when the text of the Web content registered in the specific search index is registered in the search index by the search index registration unit 14 based on the registration date and time information of the Web content is new with respect to a predetermined date and time. It is determined whether or not. Whether or not it is new with respect to a predetermined date and time is determined as whether or not it is within one day from the current date and time, for example. When the search unit 15 determines that the date and time when the text of the Web content is registered in the search index is not newer than the predetermined date and time, the search unit 15 associates the URL of the Web content corresponding to the specific search index and the URL. The combination with the extraction rule held in the extraction rule holding unit 12 is returned to the search client device 20. On the other hand, if it is determined that the date and time when the text of the Web content is registered in the search index is newer than the predetermined date and time, the text of the Web content registered in the specific search index is used as the search client device 20. Return to

  Further, the search unit 15 determines whether or not the URL of the Web content corresponding to the specific search index is a specific URL specified in advance. When the URL of the Web content corresponding to the specific search index is a specific URL, the search unit 15 associates the URL with the extraction rule associated with the URL and held in the extraction rule holding unit 12. The combination is returned to the search client device 20. On the other hand, if the URL of the Web content is not a specific URL, the text of the Web content registered in the specific search index is returned to the search client device 20.

  Further, the search unit 15 determines whether or not the extraction rule for extracting the text of the Web content corresponding to the specific search index is simpler than the predetermined extraction rule. When the extraction rule for extracting the text of the Web content indicated by the specific search index is simpler than the predetermined extraction rule, the search unit 15 determines the URL of the Web content corresponding to the specific search index and The combination with the extraction rule associated with the URL and held in the extraction rule holding unit 12 is returned to the search client device 20. On the other hand, when the extraction rule for extracting the text of the Web content corresponding to the specific search index is more complicated than the predetermined extraction rule, the search client uses the text of the Web content registered in the specific search index. Return to device 20.

  Further, the search unit 15 creates a search result list by including the extraction rule link information acquired from the database of the extraction rule holding unit 12 in the Web content information, and transmits the search result list to the search client device 20. . The extraction rule link information indicates a storage location of the extraction rule, and includes a URL indicating the storage location.

  The information acquisition unit 21 of the search client device 20 transmits a search request to the search unit 15, and uses a combination of the URL related to the Web content returned from the search unit 15 and a specific extraction rule or the text of the Web content as a search result. It is an information acquisition unit that receives and acquires Web content from the communication network 30 using the received URL.

  Further, the information acquisition unit 21 acquires the extraction rule corresponding to the link information from the communication network 30 using the link information of the extraction rule returned from the search server device 10. In this case, the information acquisition unit 21 caches (temporarily stores) the acquired extraction rule in the search client device 20. Further, the information acquisition unit 21 caches the date and time when it is cached in association with the extraction rule to be cached.

  Further, the information acquisition unit 21 determines whether or not the date and time when the specific extraction rule corresponding to the search index was cached last time is new according to a predetermined standard. The date and time when the extraction rule was cached last time is the most recent date and time when the extraction rule is cached in the search client device 20 by the information acquisition unit 21, and the cache data in the search client device 20 is read and specified. The predetermined standard is, for example, the rule acquisition date and time when the extraction rule is acquired (updated) on the search server device 10 side. That is, the rule acquisition date and time that is a predetermined reference corresponds to the update date and time information held in the database of the extraction rule holding unit 12. Information regarding the rule acquisition date and time is set in the search result list by the search unit 15 and is acquired by being included in the search result by the information acquisition unit 21. Whether or not it is new according to a predetermined standard is determined, for example, by whether or not the date and time when the extraction rule was cached last time is newer than the rule acquisition date and time set in the search result list. When the information acquisition unit 21 determines that the date and time when the specific extraction rule was cached last time is not newer than the rule acquisition date and time set in the search result list, the link information of the extraction rule returned from the search unit 15 Is used to obtain an extraction rule corresponding to the link information from the communication network 30. Then, the extracted extraction rule is updated by caching the acquired extraction rule again.

  The information acquisition unit 21 determines whether the URL of the Web content included in the search result list and returned from the search server device 10 is a specific URL specified in advance. When it is determined that the URL of the Web content returned from the search server device 10 is a specific URL, the information acquisition unit 21 uses the link information of the extraction rule returned by the search unit 15 to use the communication network 30. The extraction rule corresponding to the link information is acquired from above. Then, the extracted extraction rule is updated by caching the acquired extraction rule again.

  The latest text extraction unit 22 is a latest text extraction unit that extracts the text of the Web content according to a specific extraction rule received from the search server device 10 after the Web content is acquired by the information acquisition unit 21.

  Further, after the Web content is acquired by the information acquisition unit 21, the latest text extraction unit 22 extracts the text of the Web content using an extraction rule cached in association with the Web content in the search client device 20. To do.

  The display unit 23 is a display unit that displays the text of the Web content received by the information acquisition unit 21 or the text of the Web content extracted by the latest text extraction unit 22. That is, the display unit 23 selects display contents according to the contents returned from the search server device 10 side.

  FIG. 2 is a diagram showing a hardware configuration of the search server device 10 and the search client device 20 shown in FIG. As shown in FIG. 2, the search server device 10 physically includes a CPU 101, a ROM 102, a RAM 103, an input device 104, an output device 105, a communication module 106 that is a data transmission / reception device, an auxiliary storage device 107, and the like. Each function of the search server device 10 operates the communication module 106, the input device 104, and the output device 105 under the control of the CPU 101 by reading predetermined software on hardware such as the CPU 101 and the RAM 103. This is realized by reading and writing data in the RAM 103. Similarly, the search client device 20 physically includes a CPU 201, a ROM 202, a RAM 203, an input device 204, an output device 205, a communication module 206 that is a data transmission / reception device, an auxiliary storage device 207, and the like. Each function of the search client device 20 causes the communication module 206, the input device 204, and the output device 205 to operate under the control of the CPU 201 by loading predetermined software onto hardware such as the CPU 201 and the RAM 203. This is realized by reading and writing data in the RAM 203.

  Next, a basic Web content search method by the Web content search system 1 will be described using the sequence diagram shown in FIG.

  FIG. 3 is a sequence diagram showing the basic search processing operation by the Web content search system 1 shown in FIG. First, the search server device 10 acquires Web content as needed (information collection step: S1). On the other hand, the search server device 10 holds and updates the extraction rule for extracting the text of the Web content in advance in association with the URL of the Web content (extraction rule holding step: S2). Further, every time the Web content is acquired in the information collecting step, the search server device 10 extracts the text of the Web content based on the extraction rule held in the extraction rule holding step (text extraction step: S3). The body of the Web content is registered in the search index in association with information about the Web content including the URL of the Web content (registration step: S4).

  On the other hand, when receiving the search request (S5) from the user, the search client device 20 transmits the request to the search server device 10 (information acquisition step: S6). The search request includes information for search such as a keyword. The search server device 10 searches the Web content in response to the search request and extracts a specific search index (S7). Then, based on the information about the Web content corresponding to the specific search index, search the combination of the URL of the Web content corresponding to the search response and the text extraction rule associated with the URL, or the text of the Web content corresponding to the search response. It returns to the client device 20 (search step: S8).

  When the search server device 10 returns a search response to the search client device 20, for example, information that responds based on information such as Web content registration date and time information, Web content URL, and Web content extraction rules is returned. select. A more specific search response processing procedure of the search server device 10 based on information on the Web content at this time will be described later.

  When receiving the search response from the search server device 10, the search client device 20 acquires a plurality of Web contents corresponding to the URL included in the search response from the Web server 40 existing on the communication network 30 (information acquisition step: S9). Subsequently, the search client device 20 extracts the text from the acquired Web content using the text extraction rule included in the search response (latest text extraction step: S10). Then, the search client device 20 displays the extracted text or the text of the Web content included in the search response as a search result (display step: S11).

  Next, a specific search response processing procedure of the search server device 10 based on information on Web content will be described with reference to flowcharts and search result lists shown in FIGS. First, a search response performed by the search server device 10 based on registration date / time information in which the text of the Web content is registered will be described. FIG. 4 is a flowchart for explaining a processing procedure in which the search server device 10 shown in FIG. 1 makes a search response based on search index registration date / time information of the text of the Web content, and FIG. 5 is a flowchart illustrating the processing procedure shown in FIG. It is a figure which shows the search list to produce.

  As shown in FIG. 4, when the search unit 15 of the search server device 10 receives a search request from the search client device 20, the search unit 15 searches the corresponding Web content and is listed in the search result list 16 shown in FIG. Each item is listed (S12). Each item to be listed is information regarding Web contents linked to an ID corresponding to a specific search index. For example, each item of the search result list 16 includes an ID corresponding to the search index, a URL of the Web content, registration information of the Web content, an extraction rule, a title of the Web content, a text of the Web content, and an image URL of the Web content. It is included. Among the items of the search result list 16, the URL of the Web content and the registration date / time information of the Web content are set in association with the search index when the text of the Web content is registered in the search index by the search index registration unit 14. Has been. For example, when the ID of the search result list 16 is “1”, “http://xxx.com/xxx.html” is the URL of the Web content and “2013-05-02” is the registration date / time information of the Web content. T11: 11: 11 + 0900 "is set in association with each other.

  Subsequently, the search unit 15 confirms the registration date / time information of the Web content included in the search result list 16 and determines, for example, whether or not it is new with respect to the current date / time (May 10, 2013) (S13). When the search unit 15 determines that the date and time when the text of the Web content was registered is newer than the current date and time within one day (S13; Yes), the search unit 15 stores the Web registered in the search index. The content body is set in the search result list 16 (S14). On the other hand, if it is determined that the date and time when the text of the Web content is registered is not more than one day before the current date and time (S13: Nо), the extraction rule held in the extraction rule holding unit 12 is used as the search result. The list 16 is set (S15). For example, in the fields of “2” and “3” in the search result list 16, as a result of determining that the date and time when the text of the Web content is registered is newer than the current date and time, the title of the Web content and the Web content And the image URL of the Web content are set. On the other hand, in the fields of “1” and “4” in the search result list 16, the extraction rule is set as a result of determining that the date and time when the text of the Web content is registered is not new with respect to the current date and time. Yes.

  Subsequently, the search unit 15 determines whether or not unprocessed Web content is included in the search result list 16 (S16). If it is determined that unprocessed Web content is included (S16; Yes), the date and time when the text of the unprocessed Web content is registered is confirmed again, and whether or not it is new with respect to the current date and time. Is determined (S13). When it is determined that the unprocessed Web content is not included in the search result list 16 (S16; No), the search result list 16 is transmitted to the search client device 20 (S17).

  In the search client device 20, the information acquisition unit 21 refers to the search result list 16, and when a text item is set for an ID corresponding to a specific search index, the set text is read as it is. In this case, the display unit 23 displays the text of the search result list 16 read by the information acquisition unit 21. On the other hand, referring to the search result list 16, when the item of the text is not set for the ID corresponding to the specific search index and the item of the extraction rule is set, the information acquisition unit 21 searches for the search result. A combination of a URL and an extraction rule included in the list 16 is read. The information acquisition unit 21 acquires corresponding Web content from the communication network 30 using the URL. The latest text extraction unit 22 extracts the text of the latest Web content by applying the extraction rule read by the information acquisition unit 21 to the Web content acquired by the information acquisition unit 21. In this case, the display unit 23 displays the text of the latest Web content extracted by the latest text extraction unit 22.

  Next, a search response performed by the search server device 10 based on the URL of the Web content will be described. 6 is a flowchart for explaining a processing procedure in which the search server device 10 shown in FIG. 1 makes a search response based on the URL of the Web content. FIG. 7 shows a search list created by the search server device 10 in the processing procedure shown in FIG. FIG.

  As shown in FIG. 6, when the search unit 15 of the search server device 10 receives a search request from the search client device 20, the search unit 15 searches the corresponding Web content and is listed in the search result list 17 shown in FIG. Each item is listed (S22). Each item to be listed is information regarding Web contents linked to an ID corresponding to a specific search index. For example, each item of the search result list 17 includes an ID corresponding to the search index, a URL of the Web content, an extraction rule, a title of the Web content, a text of the Web content, and an image URL of the Web content. For example, “http://xxx.com/xxx.html” is set in association with the Web content URL for the ID “1” of the search result list 17.

  Subsequently, the search unit 15 checks the URL of the Web content included in the search result list 17 and determines whether or not the URL is a specific URL specified in advance (S23). When the search unit 15 determines that the URL of the Web content included in the search result list 17 is not a specific URL specified in advance (S23; No), the search index registration unit 14 registers the URL in the search index. The body of the web content is set in the search result list 17 (S24. On the other hand, when it is determined that the URL of the web content included in the search result list 17 is a specific URL specified in advance (S23; Yes). ), The extraction rule held in the extraction rule holding unit 12 is set in the search result list 17 (S25) For example, in the fields where the ID of the search result list 17 is “2” and “3”, As a result of determining that the URL of the Web content is not a specific URL, the title of the Web content and the text of the Web content On the other hand, when the IDs of the search result list 17 are “1” and “4”, it is extracted as a result of determining that the URL of the Web content is a specific URL. Rules are set.

  Subsequently, the search unit 15 determines whether or not unprocessed Web content is included in the search result list 17 (S26). If it is determined that unprocessed Web content is included (S26; Yes), the URL of the unprocessed Web content is confirmed again to determine whether the URL is a specific URL specified in advance. (S23). When it is determined that the unprocessed Web content is not included in the search result list 17 (S26; No), the search result list 17 is transmitted to the search client device 20 (S27).

  In the search client device 20, the information acquisition unit 21 refers to the search result list 17, and when the text item is set for the ID corresponding to the specific search index, the set text is read as it is. In this case, the display unit 23 displays the text of the search result list 17 read by the information acquisition unit 21. On the other hand, referring to the search result list 17, when the item of the body is not set for the ID corresponding to the specific search index and the item of the extraction rule is set, the information acquisition unit 21 searches for the search result. A combination of a URL and an extraction rule included in the list 17 is read. The information acquisition unit 21 acquires corresponding Web content from the communication network 30 using the URL. The latest text extraction unit 22 extracts the text of the latest Web content by applying the extraction rule read by the information acquisition unit 21 to the Web content acquired by the information acquisition unit 21. In this case, the display unit 23 displays the text of the latest Web content extracted by the latest text extraction unit 22.

  Next, a search response performed by the search server device 10 based on the complexity of the extraction rule will be described. FIG. 8 is a flowchart for explaining a processing procedure in which the search server device 10 shown in FIG. 1 performs a search response based on the complexity of the extraction rule. FIG. 9 shows a search list created by the search server device 10 in the processing procedure shown in FIG. FIG.

  As shown in FIG. 8, when the search unit 15 of the search server device 10 receives a search request from the search client device 20, the search unit 15 searches the corresponding Web content and is listed in the search result list 18 shown in FIG. 9. Each item is listed (S32). Each item to be listed is information regarding Web contents linked to an ID corresponding to a specific search index. For example, each item of the search result list 18 includes an ID corresponding to the search index, a URL of the Web content, an extraction rule, a title of the Web content, a text of the Web content, and an image URL of the Web content. For example, “http://xxx.com/xxx.html” is set in association with the Web content URL for the ID “1” of the search result list 17.

  Subsequently, the search unit 15 confirms the extraction rule for the text of the Web content included in the search result list 18 and determines whether or not the extraction rule is simpler than a predetermined threshold (S33). When checking the extraction rule for the text of the Web content, the URL contained in the search result list 18 is used to refer to the extraction rule associated with the URL and held in the extraction rule holding unit 12. Whether or not the extraction rule is simpler than a predetermined threshold is determined by, for example, quantifying the processing scale when executing the extraction rule and comparing it with a predetermined threshold. Specific examples of numerical values that determine the processing scale when executing the extraction rule include the size of the Web content to be extracted, the number of extraction rule lines (program scale), and the like. When the numerical value is larger than the predetermined threshold, the extraction rule is more complicated than the predetermined threshold, and when the numerical value is smaller than the predetermined threshold, the extraction rule is simpler than the predetermined threshold. When the search unit 15 determines that the extraction rule of the text of the Web content is not simpler than the predetermined threshold and is complicated (S33; No), the Web registered in the search index by the search index registration unit 14 The content body is set in the search result list 18 (S34). On the other hand, when it is determined that the extraction rule for the text of the Web content is simpler than the predetermined threshold (S33; Yes), the extraction rule held in the extraction rule holding unit 12 is set in the search result list 18. (S35). For example, in the fields where the IDs of the search result list 18 are “2” and “3”, it is determined that the extraction rule for the text of the Web content is more complicated than the threshold value. , And the image URL of the Web content are set. On the other hand, in the fields where the ID of the search result list 18 is “1” and “4”, the extraction rule is set as a result of determining that the extraction rule for the text of the Web content is simpler than the threshold.

  Subsequently, the search unit 15 determines whether or not unprocessed Web content is included in the search result list 18 (S36). When it is determined that unprocessed web content is included (S36; Yes), the extraction rules for the body of unprocessed web content are checked again, and whether the content is more complicated than a predetermined threshold value. Is determined (S33). When it is determined that the unprocessed Web content is not included in the search result list 18 (S36; No), the search result list 18 is transmitted to the search client device 20 (S37).

  In the search client device 20, the information acquisition unit 21 refers to the search result list 18, and when a text item is set for an ID corresponding to a specific search index, the set text is read as it is. In this case, the display unit 23 displays the text of the search result list 18 read by the information acquisition unit 21. On the other hand, referring to the search result list 18, when the text item is not set for the ID corresponding to the specific search index, and the extraction rule item is set, the information acquisition unit 21 searches the search result list 18. A combination of a URL and an extraction rule included in the list 18 is read. The information acquisition unit 21 acquires corresponding Web content from the communication network 30 using the URL. The latest text extraction unit 22 extracts the text of the latest Web content by applying the extraction rule read by the information acquisition unit 21 to the Web content acquired by the information acquisition unit 21. In this case, the display unit 23 displays the text of the latest Web content extracted by the latest text extraction unit 22.

  Next, the operation of search processing when the search rule of the Web content body is cached on the search client device 20 side will be described using the sequence diagram shown in FIG. FIG. 10 is a sequence diagram showing an operation of search processing when the search client device 20 shown in FIG. 1 caches the extraction rule.

  First, the processing procedure of the information collection step (S1), extraction rule holding step (S2), text extraction step (S3), and registration step (S4) performed by the search server device 10 is the same as the processing procedure shown in FIG. .

  As shown in FIG. 10, upon receiving a search request (S5) from the user, the search client device 20 transmits the request to the search server device 10 (information acquisition step: S6). The search request includes information for search such as a keyword. The search server device 10 searches the Web content in response to the search request and extracts a specific search index (S7). Then, based on the information about the Web content corresponding to the specific search index, the URL of the Web content corresponding to the search response, the URL of the extraction rule associated with the URL, and the update date / time information of the extraction rule are sent to the search client device 20. Return (search step: S8).

  When the search client device 20 receives the search response from the search server device 10, the search client device 20 confirms whether the Web content extraction rule associated with the URL of the Web content included in the search response is cached in the search client device 20. If not (S18), the corresponding extraction rule is obtained using the URL of the extraction rule received from the search server device 10 (S19).

  In addition, even when the Web content extraction rule included in the search response is cached in the search client device 20, the search client device 20 uses the update date and time information of the extraction rule, the URL of the Web content, etc. as a condition. The corresponding extraction rule is acquired using the URL of, and cached again. As a result, the extraction rule cached in the search client device 20 is updated. It should be noted that a more specific extraction rule update processing procedure of the search client device 20 based on information such as extraction rule update date / time information and Web content URL will be described later.

  Further, the search client device 20 acquires a plurality of Web contents from the Web server 40 existing on the communication network 30 using the URL of the Web contents included in the search response (information acquisition step: S9). The search client device 20 extracts the text by applying the extraction rule acquired from the URL of the extraction rule from the Web content acquired from the URL of the Web content (latest text extraction step: S10). Then, the search client device 20 displays the extracted text or the text of the Web content included in the search response as a search result (display step: S11).

  Next, using the flowcharts and search result lists shown in FIGS. 11 to 14, the search client device 20 stores the search rule information in the search client device 20 based on information such as the cached date and time information of the extraction rule and the URL of the Web content. A processing procedure for updating a cached extraction rule will be described in detail.

  First, a processing procedure when the search client device 20 updates the extraction rule cache based on the update date / time information will be described. FIG. 11 is a flowchart for explaining the processing procedure when the search client device 20 shown in FIG. 1 updates the extraction rule cache based on the cached date and time information of the extraction rule, and FIG. 12 is a search server in the processing procedure shown in FIG. FIG. 6 is a diagram showing a search result list received from the device 10.

  As shown in FIG. 11, the search client device 20 makes a search request to the search server device 10 and receives a search result list 24 as shown in FIG. 12 (S42). Each item of the search result list 24 is information regarding Web content linked to an ID corresponding to a specific search index. For example, each item of the search result list 24 includes an ID corresponding to the search index, a URL of the Web content, link information of the extraction rule, and a rule acquisition date and time. Here, as described above, the rule acquisition date and time is the date and time when the extraction rule is acquired by the extraction rule holding unit 12, and corresponds to the date and time when the extraction rule is updated. For example, when the ID of the search result list 17 is “1”, “http://xxx.com/xxx.html” is the URL of the Web content, and “xxx_comm.xml” is the link information of the extraction rule. As the rule acquisition date and time, “2013-05-10 T11: 11: 11 + 0900” is set in association with each other.

  Subsequently, when the extraction rule included in the search result list 24 is cached in the search client device 20, the information acquisition unit 21 determines the date and time when the extraction rule included in the search result list 24 was cached last time. It is determined whether or not the extraction rule acquisition date is new (S43). For example, when the date and time when the extraction rule was cached last time is a date and time advanced from the acquisition date and time of the extraction rule, it is determined that the date and time when the extraction rule was cached last time is newer than the acquisition date and time of the extraction rule. If the date and time when the extraction rule was cached last time is later than the acquisition date and time of the extraction rule, it is determined that the date and time when the extraction rule was cached last time is not new with respect to the acquisition date and time of the extraction rule. Note that the determination of whether the date and time is new is not limited to the determination in strict time units, and may be performed in units of periods such as days. When it is determined that the date and time when the extraction rule was cached last time is not new with respect to the acquisition date and time of the extraction rule (S43; No), the information acquisition unit 21 is based on the URL of the extraction rule included in the search result list 24. Then, the extraction rule is acquired again from the communication network 30, and the extraction rule cache is updated (S44). Note that if the extraction rule has not yet been cached, the information acquisition unit 21 acquires and caches the extraction rule regardless of the above determination. Subsequently, the information acquisition unit 21 determines whether or not unprocessed Web content is included in the search result list 24 (S45). If it is determined that unprocessed Web content is included (S45; Yes), whether or not the date and time when the extraction rule was previously cached for the unprocessed Web content is newer than the acquisition date and time of the extraction rule. Is again determined (S43). The information acquisition unit 21 determines that the unprocessed Web content is not included in the search result list 24 (S45; No), and when the processing of all the search results included in the search result list 24 is finished, the search result list Web content is acquired using the URL of the Web content included in 24 (S46). Then, the latest text extraction unit 22 extracts the text of the Web content acquired by the information acquisition unit 21 using the extraction rule cached in the search client device 20. Thereafter, the display unit 23 displays the text (S46).

  Next, a processing procedure when the search client device 20 updates the extraction rule cache based on the URL of the Web content will be described. FIG. 13 is a flowchart for explaining the processing procedure when the search client device shown in FIG. 1 updates the extraction rule cache based on the URL of the Web content, and FIG. 14 is a search received from the search server device in the processing procedure shown in FIG. It is a figure which shows a result list.

  As shown in FIG. 13, the search client device 20 makes a search request to the search server device 10 and receives a search result list 25 as shown in FIG. 14 (S52). Each item of the search result list 25 is information regarding Web content linked to an ID corresponding to a specific search index. For example, each item of the search result list 25 includes an ID corresponding to the search index, a URL of the Web content, and link information of the extraction rule. For example, when the ID of the search result list 17 is “1”, “http://xxx.com/xxx.html” is the URL of the Web content, and “xxx_comm.xml” is the link information of the extraction rule. It is set in correspondence.

  Subsequently, the information acquisition unit 21 determines whether the URL of the Web content included in the search result list 25 is a specific URL specified in advance (S53). When the information acquisition unit 21 determines that the URL of the Web content is a specific URL (S53; Yes), the information acquisition unit 21 acquires the extraction rule from the URL of the extraction rule included in the search result list 25, and caches the extraction rule. Is updated (S54). Note that if the extraction rule has not yet been cached, the information acquisition unit 21 acquires and caches the extraction rule regardless of the above determination. Subsequently, the information acquisition unit 21 determines whether or not unprocessed Web content is included in the search result list 25 (S55). If it is determined that unprocessed Web content is included (S55; Yes), the URL of the unprocessed Web content is confirmed again to determine whether the URL is a specific URL (S53). The information acquisition unit 21 determines that the unprocessed Web content is not included in the search result list 25 (S55; No), and when the processing of all the search results included in the search result list 25 is finished, the search result list Web content is acquired using the URL of the Web content included in 25 (S56). And the newest content extraction part 22 extracts the text of the web content acquired by the information acquisition part 21 using the extraction rule contained in a cache. Thereafter, the display unit 23 displays the text (S56).

  Next, a Web content search program that causes an information processing device (computer) to operate as the search server device 10 and the search client device 20 will be described. Each of the search server device 10 and the search client device 20 which are information processing devices having a hardware configuration as shown in FIG. 2 is provided with a Web content search program via a network as a computer data signal superimposed on a carrier wave. Is done. The search server device 10 and the search client device 20 can store the Web content search program provided via the network in a memory such as the auxiliary storage devices 107 and 207, respectively, and execute the Web content search program. . The search server device 10 and the search client device 20 can access the Web content search program stored in the memory, and operate as the search server device 10 and the search client device 20 of the present embodiment by the Web content search program. Is possible.

  The Web content search program according to the embodiment of the present invention may be provided by being stored in a recording medium. Examples of the recording medium include a floppy (registered trademark) disk, a CD-ROM, a DVD, a ROM, or a recording medium, or a semiconductor memory. In this case, the search server device 10 and the search client device 20 store a Web content search program in a memory using a reading device such as a floppy (registered trademark) disk drive device, a CD-ROM drive device, or a DVD drive device. .

  According to the Web content search system 1 and the Web content search method using the Web content search system described above, an extraction rule in which Web content is acquired from the communication network 30 on the search server device 10 side and held in association with the URL of the Web content. Based on this, the text of the Web content is extracted. The extracted text of the Web content is registered in the search index in association with information about the Web content including the URL of the Web content. When the search server device 10 receives a search request for searching Web content from the search client device 20, the search server device 10 extracts a specific search index from the search index based on the search request, and corresponds to the search index. Information is returned to the search client device 20. At this time, the search server device 10 uses the combination of the URL of the Web content corresponding to the specific search index and the specific extraction rule corresponding to the URL, or the specific search index based on the information about the Web content. Any text of the registered Web content can be used as information to be returned to the search client device 20. On the search client device 20 side, a search request is transmitted to the search server device 10, and a combination of the URL of the Web content and a specific extraction rule or the text of the Web content is received as the search result, and the URL is used. Web content can be acquired from the communication network 30, and the text can be extracted from the acquired content according to a specific extraction rule received from the search server device 10. Therefore, for example, when the text of the Web content received from the search server device 10 is not the latest, the latest Web content text can be acquired and displayed on the search client device 20 side as necessary. For example, when the text of the Web content received from the search server device 10 is the latest, the text of the received Web content is displayed without acquiring the Web content text again on the search client device 20 side. be able to. As described above, it is possible to display the text of the latest Web content as a search result.

  If the date and time of registration of the text of the Web content is not newer than the predetermined date and time, the combination of the URL of the Web content and the extraction rule corresponding to the search result from the search server device 10 side to the search client device 20 side. Will be returned. Therefore, on the search client device 20 side, by using the URL of the Web content received from the search server device 10 side and a specific extraction rule, the text of the latest Web content is extracted from the communication network 30 and displayed. be able to. When the registration date is newer than the predetermined date, the text of the corresponding Web content is returned as a search result from the search server device 10 side to the search client device 20 side. Therefore, on the search client device 20 side, it is possible to display the text of the Web content whose extracted date is newer than the predetermined date. As described above, it is possible to display the text of the latest Web content as a search result.

  Further, for example, when the URL of the Web content is a specific URL such that the content of the Web content is updated frequently, the search client device 20 extracts the latest text of the Web content from the communication network 30. Can be displayed.

  On the search client device 20 side, based on the link information received from the search server device 10 side, an extraction rule corresponding to the link information can be held and used. Accordingly, the latest Web content can be acquired using the extraction rule cached on the search client device 20 side without receiving the extraction rule from the search server device 10 side. As a result, Web content search processing can be made more efficient.

  Further, the link information received from the search server device 10 side on the search client device 20 side when the date and time when the specific extraction rule returned from the search server device 10 side was cached last time is not new according to a predetermined standard. Can be used to acquire the extraction rule corresponding to the link information from the communication network 30 and update the extraction rule cached in the search client device 20. As a result, the search client device 20 can acquire Web content using the latest extraction rule. As a result, Web contents can be extracted appropriately.

  Further, when the URL of the Web content indicated by the specific search index is a specific URL, the extraction rule cached in the search client device 20 can be updated on the search client device 20 side. Thereby, for example, when the URL of the Web content is a specific URL such that the content is frequently updated, the latest extraction rule acquired from the communication network 30 is obtained on the search client device 20 side. Web content items can be extracted and displayed. As a result, the Web content can be appropriately extracted in accordance with the update of the content of the Web content.

  The preferred embodiments of the present invention have been described above. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Web content search system, 10 ... Search server apparatus, 11 ... Information collection part (information collection means), 12 ... Extraction rule holding part (extraction rule holding means), 13 ... Text extraction part (text extraction means), 14 ... Search index registration unit (registration unit), 15 ... Search unit (search unit), 20 ... Search client device, 21 ... Information acquisition unit (information acquisition unit), 22 ... Latest text extraction unit (latest text extraction unit), 23 ... Display unit (display means), 30... Communication network.

Claims (8)

A content search system comprising a search server device and a search client device,
The search server device
Information collecting means for acquiring content from a communication network;
An extraction rule holding means for holding an extraction rule for extracting the text of the content acquired by the information collecting means in association with the storage destination information of the content;
Text extraction means for extracting the body of the content acquired by the information collection means based on the extraction rules held by the extraction rule holding means;
Registration means for registering a body of the content extracted by the text extraction means in a search index in association with information on the content including storage destination information of the content;
When a search request for searching for the content is received from the search client device, a specific search index is extracted from the search index based on the search request, and the content corresponding to the specific search index is extracted. Either a combination of storage location information and a specific extraction rule corresponding to the storage location information of the content extracted from the extraction rule holding means, or a text of the content registered in the specific search index Search means for selecting and returning to the client device based on the information about the content;
Have
The search client device includes:
The search request is transmitted to the search unit of the search server device, and a combination of the storage location information of the content returned by the search unit and the specific extraction rule or the text of the content is received as a search result. Information acquisition means for acquiring the content from the communication network using the received storage location information of the content;
Latest text extraction means for extracting the body of the content according to the specific extraction rule received from the search server device after the content is acquired by the information acquisition means;
Display means for displaying the text of the content received by the information acquisition means or the text of the content extracted by the latest text extraction means;
A content search system. The information related to the content includes registration date and time information related to the date and time when the text of the content was registered in the search index,
The search means determines whether or not the registration date and time of the content body registered in the specific search index is newer than a predetermined date and time based on the registration date and time information. If it is not newer than the predetermined date and time, the storage location information of the content corresponding to the specific search index and the specific extraction rule corresponding to the storage location information of the content extracted from the extraction rule holding means When the date and time of registration is newer than the predetermined date and time, the body of the content registered in the specific search index is returned to the search client device.
The content search system according to claim 1. The search unit determines whether the storage location information of the content corresponding to the specific search index is storage location information of the specific content, and the storage location information of the content is the storage location of the specific content If it is information, a combination of the storage location information of the specific content and a specific extraction rule corresponding to the storage location information of the specific content extracted from the extraction rule holding unit is stored in the search client device. When the storage location information of the content is not the storage location information of the specific content, the body of the content registered in the specific search index is returned to the search client device.
The content search system according to claim 1. The search means returns the specific extraction rule as link information,
The information acquisition means acquires the extraction rule corresponding to the link information from the communication network using the link information returned by the search means, and caches the acquired extraction rule.
The content search system as described in any one of Claims 1-3. The information acquisition means determines whether the date and time when the specific extraction rule was cached last time is new according to a predetermined criterion, and the date and time when the specific extraction rule was cached last time and according to the predetermined criterion. If not new, obtain the extraction rule corresponding to the link information from the communication network using the link information returned by the search means, and cache the obtained extraction rule again,
The content search system according to claim 4. The information acquisition means determines whether the storage location information of the content corresponding to the specific search index is storage content information of the specific content, and the storage location information of the content stores the specific content. In the case of prior information, the extraction rule corresponding to the link information is acquired from the communication network using the link information returned by the search means, and the acquired extraction rule is cached again.
The content search system according to claim 4. A content search method for searching for content by a search server device and a search client device,
The search server device
An information collecting step of acquiring content from a communication network;
An extraction rule holding step for holding an extraction rule for extracting the text of the content acquired in the information collecting step in association with the storage destination information of the content;
A text extraction step for extracting the body of the content acquired in the information collection step based on the extraction rule held in the extraction rule holding step;
A registration step of registering the body of the content extracted in the text extraction step in a search index in association with information about the content including storage destination information of the content;
When a search request for searching for the content is received from the search client device, a specific search index is extracted from the search index based on the search request, and the content corresponding to the specific search index is extracted. Either a combination of storage location information and a specific extraction rule corresponding to the storage location information of the content extracted in the extraction rule holding step, or a text of the content registered in the specific search index A search step of selecting based on the storage location information of the content and returning it to the client device;
Including
The search client device is
The search request is transmitted to the search server device, and the combination of the storage location information of the content returned in the search step and the specific extraction rule or the text of the content as a search result is received and received. An information acquisition step of acquiring the content from the communication network using content storage location information;
A latest text extraction step of extracting a body of the content according to the specific extraction rule received from the search server device after the content is acquired in the information acquisition step;
A display step for displaying the body of the content received in the information acquisition step or the body of the content extracted in the latest text extraction step;
Content search method including A content search program for searching for content by a search server device and a search client device,
A computer that operates as the search server device,
Information collecting means for acquiring content from a communication network;
An extraction rule holding means for holding an extraction rule for extracting the text of the content acquired by the information collecting means in association with the storage destination information of the content;
Text extraction means for extracting the body of the content acquired by the information collection means based on the extraction rules held by the extraction rule holding means;
Registration means for registering a body of the content extracted by the text extraction means in a search index in association with information on the content including storage destination information of the content;
When a search request for searching for the content is received from the search client device, a specific search index is extracted from the search index based on the search request, and the content corresponding to the specific search index is extracted. Either a combination of storage location information and a specific extraction rule corresponding to the storage location information of the content extracted from the extraction rule holding means, or a text of the content registered in the specific search index , Function as a search means to select and return to the client device based on information about the content,
A computer that operates as the search client device;
The search request is transmitted to the search unit of the search server device, and a combination of the storage location information of the content returned by the search unit and the specific extraction rule or the text of the content is received as a search result. Information acquisition means for acquiring the content from the communication network using the received storage location information of the content;
Latest text extraction means for extracting the body of the content according to the specific extraction rule received from the search server device after the content is acquired by the information acquisition means;
A content search program that functions as a display unit that displays the body of the content received by the information acquisition unit or the body of the content extracted by the latest text extraction unit.

Images