JP2006331292A - Weblog community search support method, search support device, and recording medium recording program for search support method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve reliability in community extraction for Weblog including description about knowledge desired by an end user. <P>SOLUTION: A crawling means 11 gathers Weblog contents including an entry, a comment, and TrackBack and the like registered in a server 30. A community extraction means 13 extracts Weblog communities frequently performing communication mutually. A community accumulation means 15 indexes a Weblog community according to a keyword frequently appearing in the Weblog community and finds communication freshness. A community search means 21 searches for the Weblog community matching a search keyword required from an end user terminal 40. A community search result display means 22 sorts the search results based on the degree of compliance of a keyword and the community freshness to display the sorted search results on the end user terminal. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a Weblog community search technique, and more particularly to a technique for supporting an online Weblog community search by extracting a Weblog community in which communication related to a specified keyword is most recently performed on a network.

  In the conventional online knowledge search technology, there are the following methods as methods for further narrowing down the knowledge to be obtained from general search results based on keywords and page rank.

  (1) Narrowing search results based on topic extraction by natural language processing (see, for example, Patent Document 1).

  (2) Narrowing search results by collaborative filtering (see, for example, Patent Document 2).

  In the former method (1), contents referring to knowledge to be obtained are generally extracted by natural language processing including morphological analysis and syntax analysis. In the method (2), in a set of collaborative filtering participating users, preference information extraction based on analysis of preference information and bookmarks registered as part of the user profile, and search history of each participating user are used. Based on the search history of a limited number of participating users who have similar preferences to the searcher, the search results are narrowed down.

Also, the Weblog server typically stores Weblog content consisting of entries that are registered daily by Weblog authors, comments added by Weblog readers, and trackbacks indicating that entries related to the entries have been registered in different Weblogs. In addition, when the comment giver specifies the URL of his / her weblog in the comment, the weblog URL is also stored, and these are used in the present invention.
JP 2001-325272 A JP 2000-331020 A

In the prior art,
In the case of (1), content including a description relating to the knowledge to be sought can be extracted, but there is a problem that the reliability of the description relating to the knowledge in the content cannot be guaranteed.

  In the case of (2), there is a problem that it is difficult to increase the accuracy of narrowing down by collaborative filtering by a limited number of end users, and it is not easy to increase the number of end users participating in collaborative filtering.

  The present invention has been made in view of the above. The purpose of the present invention is to use the history of communication related to a specific topic composed of entries, comments, and trackbacks normally stored in a Weblog server, to achieve the desired knowledge. It is possible to help end users to obtain reliable knowledge through access to the community by extracting the most recent community with a certain level of trust and presenting it to the end user. A community search support method, a search support device, and a recording medium storing a search support program are provided.

  In order to achieve the above object, Weblog community collection according to the present invention collects Weblog contents including time-series information, extracts a Weblog community expressing mutual trust by frequently communicating with each other, The contents of the Weblog community are indexed by keywords, and the communication freshness, which serves as a standard indicating whether or not the end user can participate in the search execution, is calculated and accumulated based on the number of comments and the number of trackbacks that decrease with the passage of time. In addition, in the web log community search, a web log community indexed in association with a keyword designated by the end user is searched, sorted according to the keyword suitability and the communication freshness, and presented to the end user terminal.

  As a result, it is possible to acquire the highly reliable knowledge by accessing the community by extracting the most recent community that is mutually evaluated with respect to the target knowledge and keeping a certain level of trust and presenting it to the end user. It is possible to support end users.

  In addition, since general Weblog contents that are currently popularized can be used as they are, existing Weblog contents can be used as resources as they are.

  This solves the conventional problem that it is possible to extract content including a description relating to the knowledge to be sought, but the reliability of the description relating to the knowledge in the content cannot be guaranteed.

  In addition, since existing Weblog content can be used as a knowledge resource as it is, it is difficult to increase the accuracy of narrowing down by collaborative filtering by a limited number of end users, and it is not easy to increase the number of end users participating in collaborative filtering. Solve a problem.

  As described above, the present invention is characterized by the following community search support method, search support device, and recording medium storing the search support program.

(1) A method of supporting a search for a Weblog community that includes a Weblog community collection device and a Weblog community search device, and that has recently communicated with a specified keyword on a network.
The Weblog community collection device
A crawling step of collecting Weblog contents including an entry registered in a general Weblog server, a comment specifying a URL of a comment source Weblog, a trackback, and registration date and time information;
A Weblog community extracting step of extracting a Weblog community composed of a plurality of Weblogs that frequently perform mutual communication based on the total number of comments and trackbacks within a certain period from the Weblog content;
The Weblog community is indexed by keywords that frequently appear in the Weblog community, and the communication freshness that decreases with the passage of time is calculated based on the entry registration date / time included in the Weblog community, the comment accompanying the entry, and the trackback registration date / time. A Weblog community accumulation step to accumulate,
The Weblog community search device
A Weblog community search step for searching the Weblog community indexed in association with a search keyword requested from an end user terminal from the Weblog community accumulation result,
A Weblog community search result display step for sorting the Weblog community search results based on keyword matching and communication freshness and displaying them on an end user terminal.
A Weblog community search support method characterized by the above.

(2) A device that includes a Weblog community collection device and a Weblog community search device, and supports a search for a Weblog community in which communication related to a specified keyword is most recently performed on a network,
The Weblog community collection device
A crawling means for collecting an entry registered in a general Weblog server, a comment specifying a URL of a comment source Weblog, a trackback, and Weblog contents including these registration date and time information;
Weblog community extracting means for extracting a Weblog community composed of a plurality of Weblogs that frequently perform mutual communication based on the total number of comments and trackbacks within a certain period from the Weblog content;
The Weblog community is indexed by keywords that frequently appear in the Weblog community, and the communication freshness that decreases with the passage of time is calculated based on the entry registration date / time included in the Weblog community, the comment accompanying the entry, and the trackback registration date / time. Weblog community storage means for storing,
The Weblog community search device
Weblog community search means for searching the Weblog community indexed in association with the search keyword requested from the end user terminal from the Weblog community accumulation result,
Weblog community search result display means for sorting the Weblog community search results on the basis of keyword suitability and communication freshness and displaying on the end user terminal.
This is a Weblog community search support device.

  (3) A recording medium in which a program configured to execute the Weblog community search support method of (1) above by a computer is recorded.

According to the present invention described in claim 1 and the like,
The Weblog community collection device collects Weblog content including time-series information, extracts a Weblog community expressing mutual trust through frequent communication with each other, and indexes the content of the Weblog community using keywords. In addition, the communication freshness, which is a standard indicating whether or not the end user can participate in the search execution, is calculated and accumulated based on the number of comments and the number of trackbacks that usually decrease with the passage of time,
The Weblog community search device searches the Weblog community indexed in association with the keyword specified by the end user, sorts it according to the keyword suitability and the communication freshness, and presents it to the end user terminal.
The end users are able to obtain highly reliable knowledge by accessing the community by extracting the most recent community that mutually evaluates the target knowledge and has a certain level of trust and presents it to the end user. Can help.

  In addition, since general Weblog contents that are currently spreading can be used as they are, existing Weblog contents can be used as resources as they are. As a result, it is possible to solve the conventional problem that the content including the description related to the desired knowledge can be extracted, but the reliability of the description regarding the knowledge in the content cannot be guaranteed.

  In addition, since existing Weblog content can be used as a knowledge resource as it is, it is difficult to increase the accuracy of narrowing down by collaborative filtering by a limited number of end users, and it is not easy to increase the number of end users participating in collaborative filtering. Can solve the problem.

  FIG. 1 is a configuration diagram of a Weblog community search support apparatus according to an embodiment of the present invention corresponding to claim 1 and the like.

  The Weblog community search support apparatus shown in the figure is composed of a Weblog community collection apparatus 10 and a Weblog community search apparatus 20, and each apparatus is connected by a network, and a general Weblog server 30 and a general one are connected via the Internet. Communication with a typical end user terminal 40 is enabled.

  The Weblog community collection device 10 and the Weblog community search device 20 are realized by an information processing computer that is network-connectable to a general weblog server 30 and an end user terminal 40, and the configuration thereof is the Weblog community collection device. 10 includes a crawling means 11, a database 12, a community extracting means 13, a database 14, a community accumulating means 15, and a database 6, and the Weblog community search device 20 displays a community search means 21 and a community search search result display. Means 22. Among these, the databases 2, 14, and 16 are constructed in a storage device such as a hard disk mounted on the computer, and each means 11, 13, 15, 21, and 22 is realized by a software configuration of the computer.

  In the Weblog community collection device 10, the crawling means 11 collects Weblog contents including entries registered in a general Weblog server 30, comments specifying the URL of the comment source Weblog, trackbacks, and registration date / time information thereof, Save in the database 12.

  Further, the Weblog community extracting means 13 selects a Weblog community composed of a plurality of Weblogs that frequently perform mutual communication based on the total number of comments and trackbacks within a certain period of the Weblog content stored in the database 12. Extract and store in database 14.

  In addition, the Weblog community storage unit 15 indexes the Weblog community with keywords that frequently appear in the Weblog community stored in the database 4, and the entry registration date / time included in the Weblog community, the comment associated with the entry, and the trackback registration date / time Based on this, the freshness of communication that decays with time is calculated and stored in the database 16.

  FIG. 2 shows a configuration and communication example of a general Weblog content. In general, an entry is text information classified in time series and including an image URL and the like, and corresponds to what is written in a diary. The comment is usually text information written by the Weblog reader for the entry, and the Weblog reader can also specify the top page URL of his / her Weblog, in which case the top page is included in the comment. A hyperlink to the URL is automatically generated. The trackback is a trackback source entry related to the trackback destination entry, and a hyperlink to the trackback source entry is automatically generated based on “TrackbackPing” received by the trackback destination Weblog.

  Here, what is called a Weblog community is a result of extracting a set of a plurality of Weblogs that frequently perform mutual communication based on the total number of comments and trackbacks. As a simple example of implementation of such a Weblog community, for example, a format of RSS 1.0 (see Non-Patent Document 1 below) is used, and a keyword set characteristic for all contents belonging to the Weblog community is defined as <Channel>. Described in the <dc: subject> tag of the tag to make indexing symmetrical, and reference URLs of all Weblogs belonging to the Weblog community are described under the <item> tag. A structure including entries and comments belonging to each Weblog and trackback time-series information can be described in the original extended XML format under the <item> tag.

[Non-Patent Document 1] ochRDF Site Summary (RSS) 1.0 ", Gabe Beged-Dov & Dan Brickley et.al., 2001/05 update, [Search 10/29/2004] Internet URL <URL: http: // web.resource.org/rss/1.0/spec>
In the Weblog community search device 20 of FIG. 1, Weblog community search means 21 searches the databases 12, 14, and 16 stored by the Weblog community storage means 15 for the Weblog community indexed in association with the search keyword. To do. The web log community search result display means 22 sorts the web log community search results based on the keyword suitability and the communication freshness and allows the end user terminal 40 to display them.

  FIG. 3 shows a search processing flow by the Weblog community search support apparatus, and this processing flow will be described with the following step numbers (S1) to (S5).

  (S1) The crawling unit 11 collects Weblog contents including entries, comments, trackback contents, and time-series information from a general Weblog server 30 that is connected to the Internet and is open to the public, and stores the contents in the database 12.

  (S2) The community extraction unit 13 extracts a Weblog community composed of a plurality of Weblogs that frequently perform mutual communication based on the total value of the number of comments and the number of trackbacks within a certain period, for example, in the RSS format. And stored in the database 4.

  (S3) The community storage unit 15 calculates TF / IDF for each Weblog community in the collected content (a search algorithm that calculates the product of the occurrence rate TF of an important word from a sentence and an index IDF representing the rare degree of the word) ) Are extracted frequently, the keyword is added to the RSS corresponding to the Weblog community, the keyword is associated with the RSS, the entry registration date and time included in the Weblog community, and the comment associated with the entry. The communication freshness that decays with the passage of time is calculated based on the trackback registration date and time, the RSS is indexed by the keyword and the communication freshness, and is stored in the database 16.

  (S4) Upon receiving the search keyword from the end user terminal, the Weblog community search means 21 searches the indexed RSS for the Weblog content associated with the keyword.

  (S5) The community search result display means 22 sorts the plurality of RSSs of the search results by the keyword suitability and the communication freshness, and sends them back to the end user terminal.

  Through the above processes (S1) to (S5), mutual evaluation of the target knowledge is performed using the communication history related to a specific topic composed of entries, comments, and trackbacks normally stored in the Weblog server. It is possible to support the end user by extracting the community closest in time and presenting it to the end user and acquiring highly reliable knowledge by accessing the community.

  Note that each processing step in the community search support method described in the present embodiment can be realized by a program configured to be executable by a computer, and can further be recorded on a recording medium or provided through a network. is there.

The block diagram of the Weblog community search assistance apparatus which concerns on embodiment of this invention. The figure which shows the structural example of a general web log content. The processing flow of the Weblog community search support method which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Weblog community collection apparatus 20 Weblog community search apparatus 11 Crawling means 12 Database 13 Community extraction means 14 Database 15 Community storage means 16 Database 21 Community search means 22 Community search result display means

Claims (3)

A method of supporting a search for a Weblog community comprising a Weblog community collection device and a Weblog community search device, wherein communication related to a specified keyword is most recently performed on a network,
The Weblog community collection device
A crawling step of collecting Weblog contents including an entry registered in a general Weblog server, a comment specifying a URL of a comment source Weblog, a trackback, and registration date and time information;
A Weblog community extracting step of extracting a Weblog community composed of a plurality of Weblogs that frequently perform mutual communication based on the total number of comments and trackbacks within a certain period from the Weblog content;
The Weblog community is indexed by keywords that frequently appear in the Weblog community, and the communication freshness that decreases with the passage of time is calculated based on the entry registration date / time included in the Weblog community, the comment accompanying the entry, and the trackback registration date / time. A Weblog community accumulation step to accumulate,
The Weblog community search device
A Weblog community search step for searching the Weblog community indexed in association with a search keyword requested from an end user terminal from the Weblog community accumulation result,
A Weblog community search result display step for sorting the Weblog community search results based on keyword matching and communication freshness and displaying them on an end user terminal.
A Weblog community search support method characterized by the above. An apparatus that includes a Weblog community collection device and a Weblog community search device, and supports a search for a Weblog community in which communication related to a specified keyword is most recently performed on a network,
The Weblog community collection device
A crawling means for collecting an entry registered in a general Weblog server, a comment specifying a URL of a comment source Weblog, a trackback, and Weblog contents including these registration date and time information;
Weblog community extracting means for extracting a Weblog community composed of a plurality of Weblogs that frequently perform mutual communication based on the total number of comments and trackbacks within a certain period from the Weblog content;
The Weblog community is indexed by keywords that frequently appear in the Weblog community, and the communication freshness that decreases with the passage of time is calculated based on the entry registration date / time included in the Weblog community, the comment accompanying the entry, and the trackback registration date / time. Weblog community storage means for storing,
The Weblog community search device
Weblog community search means for searching the Weblog community indexed in association with the search keyword requested from the end user terminal from the Weblog community accumulation result,
Weblog community search result display means for sorting the Weblog community search results on the basis of keyword suitability and communication freshness and displaying on the end user terminal.
This is a Weblog community search support device.   A recording medium on which a program configured to execute the Weblog community search support method according to claim 1 by a computer is recorded.

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