JP2006048546A - Url filtering system, method, program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a URL filtering system, a method, a program and a recording medium, by a context performing filtering for selecting a URL of a Web site, performing retrieval on the basis of the context of a user when retrieving the Web site. <P>SOLUTION: This URL filtering system has: a network constructed by setting an access history of the URL of the Web site accessed by the user as the context and connecting a plurality of users each having a similar context; URL lists 14, 15, 16 registered and produced by selection of the user from the URLs, and owned by each the user; a URL transmission means 13 owned by each the user so as to transmit the URL registered in the URL list 14, 15, 16 to another user except the user via the network; and a URL acquisition means 10 owned by each the user so as to receive the URL transmitted by the URL transmission means 13 and to register it into the URL list 14, 15, 16 of oneself. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  More specifically, the present invention relates to a URL filtering system, method, program, and program for performing filtering for selecting a URL of a website to be searched based on a user context when performing a website search in information retrieval via a network. The present invention relates to a recording medium.

  2. Description of the Related Art Conventionally, a user who seeks content including information that he / she wants to use has searched for and used content that exists on a network such as the Internet. This search uses a search service providing site that provides a service for searching for content on a network, and performs a search by inputting a keyword related to the target content. In such a content search, the URL of a Web site having necessary content can be easily obtained, but the URL of a Web site including unnecessary content is also displayed as a search result candidate.

  Web sites containing unnecessary contents are not only unnecessary, but often the contents are harmful or uncomfortable for the user. Therefore, URL filtering technology is used to eliminate such unnecessary Web sites. The following three types of URL filtering methods are typical.

  First, in the self-rating system, an information sender who transmits information on a website rates (ratings) his / her outgoing information, and the user searches for this rating and a level desired by the user who is the recipient. Regulations are being made in In this self-rating system, PICS (Platform for Internet Content Selection) rules are mainly adopted, and although there is a third-party rating that provides a DB (Data Base) rated by a third-party organization, self-rating is generally used. It is classified as a rating.

  This self-rating system is also used by Microsoft (registered trademark) IE (Internet Explorer: registered trademark) and has the advantage that it can be used free of charge by the user, but only by the self-regulation that is uniquely rated by the information sender. Because it relies on, it cannot be said that the regulation accuracy for URL filtering is high.

  Specifically, if the information sender should not disclose the information on the website to an unlimited number of people at his / her discretion, selective reception restriction is included in the HTML that is the information source of the website. A program is added to prevent the user from receiving unlimited information that the user desires to exclude (see Non-Patent Documents 1 to 4).

  Next, the DB (Data Base) method is a method for restricting unlimited access to a Web site registered in advance in the DB. As this DB method, a black list method in which URLs of websites to be regulated are registered is widely known (see Non-Patent Documents 1 to 4), and only a website registered in the DB in advance can be accessed. There is also a list method (see Non-Patent Documents 1 to 3). Whether or not access to the target URL is selectively determined based on URLs registered in advance in such a black list or white list is referred to as a filtering policy. Since this DB method can restrict access by URL filtering without connecting to the Internet, the CPU load, line load and cost of the user's computer terminal can be kept low. Further, it is characterized by little influence on the display speed on the monitor screen of the user's computer terminal.

Finally, in the language search method, for example, words such as “naked” or “weapon” are designated as keywords of information to be restricted, and these keywords included in the website are detected and restricted. Although this method is excellent in real-time property, it takes time to download the Web site to the user's computer terminal, so there is a slight time lag until the Web site display is completed (see Non-Patent Documents 1 to 4). .
“Three methods of URL filtering”, [online], posting date unknown, Netstar Co., Ltd. [searched on June 22, 2004], Internet <http://www.netstar-inc.com/filterling_01.html > "[Special Feature] Inner Security Advocated by Softbank BB", [online], date unknown, Softbank BB Corporation, [Search June 22, 2004], Internet <http://solution2.it-ex.com /solweb/solution/keynavi3.htm#1> “CSE security solution INTERSAFE”, [online], posting date unknown, CSE, Inc. [searched on June 22, 2004], Internet <http://www.cseltd.co.jp/security/ intersafe / ＞ “What are the criteria for selecting NetSecurity URL filtering products”, [online], October 30, 2003, Livedoor Inc., Net and Security Research Institute, Inc., [Search June 22, 2004], Internet <http: / /www.netsecurity.ne.jp/article/3/11487.html>

  In the above-described URL filtering according to the prior art, since a user manually sets a filtering policy such as a white list or a black list, it takes time and costs and is not efficient.

  In addition, as the number of URLs registered in the white list or black list increases, the number of websites that can be filtered increases. On the other hand, the processing time required for URL filtering increases, and the user accesses the URL. It took a long time before the website was displayed.

  In addition, in order to perform URL filtering on the premise that the user is used by one person, when the user himself / herself registers the filtering policy, the labor for registering the URL list is limited.

  In addition, the black (white) list of URLs created by an individual user is limited in size and is too small. Therefore, there is a limit to the coverage of URLs when using the Internet mainly for current search portal sites. It was often useless.

  In addition, in order to create a black list or a white list, it is necessary to visually confirm the contents of the target website, and it is necessary for the user to browse at least once the content containing unnecessary and unpleasant information. there were.

  In addition, although there are many products that provide URL filtering to prevent access to websites that contain harmful content that the user wants to exclude (filtering), there are many websites that are useless for users. There is no URL filtering service or product that allows selective access to useful websites, and there is a great difference between users in terms of useless / useful websites, creating a list that satisfies many users. That was difficult.

  In addition, in the case of a method of checking the content of a content included in a website, URL filtering is performed by keyword matching for matching with a keyword list. However, if the content is an image-based website, the content cannot be determined. It takes a certain amount of time to determine whether or not access is possible, and the image display speed when browsing a Web site has been slow.

The present invention has been made in view of these problems, and an object of the present invention is to use a context as connection information between users generated based on a history of URLs accessed by the user, and the context is close. Build a network composed of users and enable URL filtering based on context on this network.
In addition, there is no need for users to set filtering policies such as whitelist and blacklist.
In addition, the number of URLs registered in the white list and black list can be increased, and many websites that can be filtered can be covered.
Also, the processing time required for URL filtering is reduced,
In addition, URL filtering that a user can use individually can be easily provided,
In addition, there is no need to browse unnecessary websites to create a filtering policy.
In addition, URL filtering services and products that allow users to selectively access unnecessary websites and necessary useful websites can be provided.
You can also create a filtering policy that satisfies many users,
Further, the present invention provides a URL filtering system and method, program, and recording medium that can determine the content even if the content is an image-based Web site, can quickly determine whether access is possible, and does not slow down the image table speed when browsing the Web site. There is.

  In order to solve the problem, the present invention according to claim 1 is a URL filtering system for selecting and providing Web site information to a user, and an access history of URLs of the Web site accessed by the user. A network constructed by connecting a plurality of users having similar contexts, a URL list registered and generated by the user's selection from among the URLs, and owned by each of the users The URL registered in the URL list to be transmitted to other users other than the user via the network, and the URL transmitted by the user and the URL transmitted by the URL transmitting unit. Each of the users receives and registers to their URL list And a URL acquisition unit owned.

  According to a second aspect of the present invention, there is provided a URL filtering system for selecting and providing Web site information to a user, using a URL access history of the Web site accessed by the user as a context, and similar. A network constructed by connecting a plurality of the users having the context, a URL list registered and generated by the user's selection from among the URLs, and owned by each of the users, and the URL list In order to transmit the registered URL to other users other than the user via the network, the user owns the URL transmission means owned by the user, the URL transmission means receives the URL, It accumulates and registers each URL of the same type already registered in the URL list. In order to do so, the URL acquisition means each owned by the user, and the display restriction means for extracting the URL whose accumulated amount of URL exceeds a preset threshold and restricting the image display of the website corresponding to the URL And comprising.

  Further, according to a third aspect of the present invention, in the second aspect, the restriction is either prohibition or permission of image display of the Web site.

  According to a fourth aspect of the present invention, there is provided a URL filtering system for selecting and providing Web site information to a user, using a URL access history of the Web site accessed by the user as a context, and similar. A network constructed by connecting a plurality of the users having the context, a URL list registered and generated by the user's selection from among the URLs, and owned by each of the users, and the URL list In order to transmit the registered URL to another user other than the user via the network, the user owns a URL transmission means owned by the user, and receives the URL transmitted by the URL transmission means. URLs that each user owns to register in the URL list Comprises a resulting unit, and a feedback means for transmitting the URL to other users other than the user when the URL of the Web site is registered in its own the URL list by the user is trying to access.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, information other than the URL included in the Web site is registered in the URL list.

  In addition, according to a sixth aspect of the present invention, in the fifth aspect, the information includes at least one of a creator of the website, a word, and an image.

  According to a seventh aspect of the present invention, there is provided a URL filtering method for selecting and providing Web site information to a user, using a URL access history of the Web site accessed by the user as a context, and similar A plurality of users having the above-mentioned contexts are connected to construct a network, a URL list registered and generated by the user's selection from among the URLs and created by each of the users is created, and the URL list A URL transmitting means owned by each of the users in order to transmit the URL registered in the user to other users other than the user via the network, and receiving the URL transmitted by the URL transmitting means Each user owns to register in his URL list Constitute the L acquisition means.

  In the URL filtering method for selecting and providing Web site information to a user, the present invention described in claim 8 is similar to the URL access history of the Web site accessed by the user as a context. A plurality of users having the above-mentioned contexts are connected to construct a network, a URL list registered and generated by the user's selection from among the URLs and created by each of the users is created, and the URL list In order to transmit the URL registered in the URL to other users other than the user via the network, URL transmission means owned by the user are constructed, and the URL transmitted by the URL transmission means is received. , Stored for each URL of the same type already registered in the URL list In order to register, URL acquisition means each owned by the user is constructed, the URL whose accumulated amount of URL exceeds a preset threshold is extracted, and the image display of the Web site corresponding to this URL is restricted Build a display control means.

  Also, in the present invention according to claim 9, in claim 8, the restriction is either prohibition or permission of image display of the Web site.

  According to a tenth aspect of the present invention, in the URL filtering method for selecting and providing information to a website to a user, the URL access history of the website accessed by the user is used as a context, A plurality of users having the above-mentioned contexts are connected to construct a network, a URL list registered and generated by the user's selection from among the URLs and created by each of the users is created, and the URL list In order to transmit the URL registered in the URL to other users other than the user via the network, URL transmission means owned by the user are constructed, and the URL transmitted by the URL transmission means is received. Each user owns to register in his URL list It constructs a RL acquiring unit, the user builds a feedback means for transmitting the URL to other users other than the user when the URL of the Web site is registered in its own the URL list to be accessed.

  Further, in the present invention described in claim 11, in any one of claims 7-10, information other than the URL included in the Web site is registered in the URL list.

  In addition, according to a twelfth aspect of the present invention, in the eleventh aspect, the information includes at least one of a creator of the website, a word, and an image.

  According to a thirteenth aspect of the present invention, in the URL filtering program for selecting and providing the website information to the user, the URL access history of the website accessed by the user is used as a context, A plurality of users having the above-mentioned contexts are connected to construct a network, a URL list registered and generated by the user's selection from among the URLs and created by each of the users is created, and the URL list A URL transmitting means owned by each of the users in order to transmit the URL registered in the user to other users other than the user via the network, and receiving the URL transmitted by the URL transmitting means The user is responsible for registering with his URL list. Configure the URL acquisition means for.

  Further, the present invention according to claim 14 is a URL filtering program for selecting and providing Web site information to a user, using a URL access history of the Web site accessed by the user as a context, and similar A plurality of users having the above-mentioned contexts are connected to construct a network, a URL list registered and generated by the user's selection from among the URLs and created by each of the users is created, and the URL list In order to transmit the URL registered in the URL to other users other than the user via the network, URL transmission means owned by the user are constructed, and the URL transmitted by the URL transmission means is received. , For each URL of the same type that is already registered in its URL list In order to accumulate and register, the URL acquisition means each owned by the user is constructed, the URL in which the accumulated amount of the URL exceeds a preset threshold is extracted, and the image display of the Web site corresponding to this URL Construct display regulation means to regulate

  In addition, in the present invention described in claim 15 according to claim 14, the restriction is either prohibition or permission of image display of the Web site.

  According to a sixteenth aspect of the present invention, in the URL filtering program for selecting and providing information to a website to a user, the URL access history of the website accessed by the user is used as a context, A plurality of users having the above-mentioned contexts are connected to construct a network, a URL list registered and generated by the user's selection from among the URLs and created by each of the users is created, and the URL list In order to transmit the URL registered in the URL to other users other than the user via the network, URL transmission means owned by the user are constructed, and the URL transmitted by the URL transmission means is received. The user is responsible for registering with his URL list. And a feedback means for transmitting the URL to a user other than the user when the URL of the website that the user intends to access is already registered in the URL list of the user. .

  According to a seventeenth aspect of the present invention, in any one of the seventh to tenth aspects, information other than the URL included in the Web site is registered in the URL list.

  Moreover, the present invention according to claim 18 is the invention according to claim 17, wherein the information includes at least one of a creator of the website, a word, and an image.

  Moreover, this invention of Claim 19 can be performed on the server in any one of Claims 13-18.

  The present invention as set forth in claim 20, wherein the URL access history of the Web site accessed by the user is recorded in a recording medium on which a URL filtering program for selecting and providing the Web site information is provided to the user. A network is constructed by connecting a plurality of users having similar contexts, and a URL list that is registered and generated by the user's selection from among the URLs and that each user owns is created. And configured to transmit a URL registered in the URL list to other users other than the user via the network, and each of the URLs owned by the user is transmitted by the URL transmitting unit. Before receiving the URL and registering it in your URL list User records the URL filtering program characterized by configuring the URL acquisition unit owned by each.

  According to a twenty-first aspect of the present invention, there is provided an access history of URLs of the website accessed by the user in a recording medium on which a URL filtering program for selecting and providing information to the website is provided. A network is constructed by connecting a plurality of users having similar contexts, and a URL list that is registered and generated by the user's selection from among the URLs and that each user owns is created. Then, in order to transmit the URL registered in the URL list to other users other than the user via the network, a URL transmission unit owned by each of the users is constructed and transmitted by the URL transmission unit. The same type that has received the URL and is already registered in its URL list In order to accumulate and register for each URL, a URL acquisition means owned by each of the users is constructed, and the URL in which the accumulated amount of the URL exceeds a preset threshold value is extracted, and the URL corresponds to this URL A URL filtering program characterized by constructing display restricting means for restricting image display of a Web site is recorded.

  According to a twenty-second aspect of the present invention, there is provided a URL filtering program according to the twenty-first aspect, wherein the restriction is either prohibition or permission of image display of the website.

  According to a twenty-third aspect of the present invention, there is provided an access history of URLs of the website accessed by the user in a recording medium on which a URL filtering program for selecting and providing the website information to the user is recorded. A network is constructed by connecting a plurality of users having similar contexts, and a URL list that is registered and generated by the user's selection from among the URLs and that each user owns is created. Then, in order to transmit the URL registered in the URL list to other users other than the user via the network, a URL transmission unit owned by each of the users is constructed and transmitted by the URL transmission unit. Before receiving the URL and registering it in your URL list For constructing URL acquisition means owned by each user, and for transmitting the URL to other users other than the user when the URL of the website that the user intends to access is already registered in the URL list of the user A URL filtering program characterized by constructing feedback means is recorded.

  Further, in the present invention described in claim 24, in any one of claims 7 to 10, information registered in the URL list is information other than the URL included in the Web site. Record the URL filtering program.

  According to a twenty-fifth aspect of the present invention, there is provided a URL filtering program according to the twenty-fourth aspect, wherein the information includes at least one of a creator, a word, and an image of the website. Record.

  According to a twenty-sixth aspect of the present invention, in any one of the twenty-fifth to twenty-fifth aspects, a URL filtering program that can be executed on a server is recorded.

According to the present invention, by using a context as connection information between users generated based on a history of URLs accessed by a user, a network composed of users with similar contexts is constructed, and a context is created on this network. URL filtering based on
In addition, there is no need for users to set filtering policies such as whitelist and blacklist.
In addition, the number of URLs registered in the white list and black list can be increased, and many websites that can be filtered can be covered.
Also, the processing time required for URL filtering is reduced,
In addition, URL filtering that a user can use individually can be easily provided,
In addition, there is no need to browse unnecessary websites to create a filtering policy.
In addition, URL filtering services and products that allow users to selectively access unnecessary websites and necessary useful websites can be provided.
You can also create a filtering policy that satisfies many users,
Further, the present invention provides a URL filtering system and method, program, and recording medium that can determine the content even if the content is an image-based Web site, can quickly determine whether access is possible, and does not slow down the image table speed when browsing the Web site. be able to.

  In the embodiments of the URL filtering system and method, the program, and the recording medium of the present invention, the connection information between users generated based on the history of URL (Uniform Resource Locator) accessed by the user is represented by CSN. (Context Sensing Network) information. By using this CSN information, it becomes possible to connect as a network between users who have similar hobbies, preferences, and actions. Using this CSN information, URL filtering for selectively permitting / disallowing access to the Web site is realized.

  FIG. 1 is a configuration diagram for explaining the configuration of a URL filtering system 1 according to an embodiment of the URL filtering system of the present invention. The URL filtering system 1 shown in FIG. 1 is connected to a network 2 including an information communication network such as the Internet configured by an IP (Internet Protocol) network, and there are many Web sites not shown in the network 2. is doing. The system configuration shown in FIG. 1 is a server client configuration, and is connected to the network 2 via a proxy server 5.

  Further, the URL filtering system 1 selects a CSN processing unit 3 that performs information processing for configuring CSN (Context Sensing Network) information, and a display of a Web site of a URL for which an access request has been made. URL filtering processing unit 4 that is controlled by permission / inhibition, proxy (PROXY) server 5 that is proxyly connected to network 2 and used for URL filtering, and network 2 that proxy server 5 has And a proxy function 20 that performs connection mediation on behalf of the connection. The proxy server 5 is connected to a client A6 that uses a Web site on the network 2, a client B7, and a client C8. The client A6, the client B7, and the client C8 are provided with a URL registration function 21 that registers the URL of the accessed website for URL filtering, and a browser 22 that displays, searches, and performs various operations of the website.

  Further, the CSN processing unit 3 has a CSN information database 9 in which basic information related to context classification and association is stored. The URL filtering processing unit 4 is included in the CSN information, a CSN information acquisition unit 10 that acquires CSN information from the CSN information database 9 as necessary, a URL registration unit 11 that registers a URL for which a registration request has been made, and the CSN information. It has a CSN information interpretation unit 12 that interprets information such as the number of hops, and a URL transmission unit 13 that transmits URLs to other users.

  Further, the URL filtering processing unit 4 includes a client A filtering policy DB (Data Base) 14 related to the client A6, a client B filtering policy DB 15 related to the client B7, and a client C filtering policy DB 16 related to the client C8. ing.

  The client A6, the client B7, and the client C8 are one of clients (beneficiaries (users) who are connected to the URL filtering system of the present invention and receive URL filtering) configured to explain the embodiment of the present invention. This is an example, and more clients may be connected.

  Next, FIG. 2 is a block diagram for explaining the configuration of a URL filtering system according to another embodiment of the URL filtering system of the present invention. The other embodiment shown in FIG. 2 is characterized in that it has main components on the client side as compared with the configuration of the URL filtering system 1 shown in FIG. This system configuration is a P2P (Peer to Peer) configuration. The client D25 shown in FIG. 2 has the same configuration as the client E26, and includes a browser 28, a URL registration function 29, a filtering policy DB 27, a proxy function unit 31, a URL transmission unit 30, and CSN information. An interpretation unit 34, a CSN information acquisition unit 33, and a CSN information generation unit 32 are provided. The function of each component is the same as that of the URL filtering system 1 shown in FIG.

  Next, the effects provided by the URL filtering system shown in FIGS. 1 and 2 will be described below for the URL registration function, the URL filtering function, and the URL feedback function, respectively.

  First, as a flow of the URL registration function, CSN information which is a connection between users generated based on a history of URLs accessed by users is acquired. The URL registered by the user is registered in its own filtering policy (black list, white list) and transmitted to other users in the vicinity of the user based on the CSN information. For other users in the vicinity, the transmitted URL is registered in the filtering policy (black list, white list) of the other user.

  Here, as shown in FIG. 3, a user X40, a user Y41, and a user Z42 are shown, and the respective users are connected to each other by an overlay network. In FIG. 3, a user X40 browses an arbitrary website and registers the URL: A of this website in the URL list of the user X40 (not shown). The URL A registered in the URL list of the user X40 is transmitted to the other user 45 located in the vicinity of the user X40 on the network. The other user 45 registers the URL: A transmitted from the user X 40 in the URL list 43 owned by the other user 45. Thus, the URL A acquired by the user X 40 is transmitted to the other user 45 that is associated in the same context and forms the overlay network, and the other user 45 updates the contents of the URL list 43 applied to URL filtering. Can do.

  Similarly to the case of the user X40, when the user Y41 browses an arbitrary website, acquires the URL: B, and registers it in a URL list (not shown), the information of the URL: B is also in the vicinity of the user. Sent to Z42. The user Z42 registers the URL: B transmitted from the user Y41 in the URL list 44 owned by the user Z42.

  FIG. 4 is a sequence chart showing the flow of the URL registration function described in FIG. First, the user X40 arbitrarily accesses a website and browses and confirms the contents of the website. If it is determined for the user X40 that the content of the browsed website is the content to be put on the black list, the URL: A of this website is registered in its own URL list. This URL list is a filtering policy for the user X40 for performing URL filtering.

  After registering URL: A in the URL list, an inquiry about CSN information centered on the user X40 is transmitted to the CSN processing unit 3 from a computer terminal (not shown) of the user X40 (step S1). The CSN processing unit 3 receives this CSN information inquiry, generates CSN information centered on the user X40, and returns the generated CSN information to the user X40 (step S2).

  In accordance with the received CSN information, if the number of hops> 0, the user X40 sets another value in the vicinity of the user X40, for example, the user Y41 shown in FIG. URL: A is transmitted together with a new hop number (step S3). The user Y41 registers the URL: A in its own URL list (filtering policy) with the received URL: A and the new hop number, and transmits an inquiry about CSN information centered on the user Y41 to the CSN processing unit 3. (Step S4). In FIG. 3, the URL: A transmitted from the user X40 to the user Y41 is shown as not being registered by the user Y41, and the URL: B is registered by the user Y41. As shown, in the flow of FIG. 4, the URL is unified only to URL: A and used for explanation.

  Upon receiving the CSN information inquiry transmitted from the user Y41, the CSN processing unit 3 generates CSN information centered on the user Y41. The generated CSN information is transmitted to the user Y41 (step S5). The user Y41 receives the reply of the CSN information centered on the user Y41 transmitted from the CSN processing unit 3. If the received CSN information indicates that the value of hop count-1 is> 0, a new hop count obtained by subtracting 1 from this hop count is generated, and the URL and new user Z42 in the vicinity of itself are generated. The number of hops is transmitted (step S6).

  The user Z42 receives the URL: A and the new hop number transmitted from the user Y41, and registers the URL: A in its own URL list. At the same time, the CSN processing unit 3 is inquired about CSN information centered on the user Z42 (step S7). The CSN processing unit 3 receives this inquiry from the user Z42, generates CSN information centered on the user Z42, and returns CSN information centered on the user Z42 to the user Z42 (step S8). The user Z42 receives the CSN information centered on the user Z42. If the number of hops −1 is> 0, the value obtained by subtracting 1 from the number of hops is set as the new hop number, URL: A is transmitted (step S9).

  Thus, the URL: A propagation sequence from the user X41 to the user Z42 has been described, but the number of users to which the URL: A is propagated is determined by the value of the number of hops. The relationship between users is that each other's “connection information” generated based on the URL history accessed by each user is CSN (Context Sensing Network) information, and the users are linked based on this CSN information. An overlay network is being built. In addition, users whose URLs are transmitted with a small number of hops are closer to each other, and are closer to the CSN information.

  Next, the filtering function by the URL filtering system of the present invention will be described with reference to FIGS. In FIG. 5, the user 50 accesses an arbitrary Web site X52. The user 50 owns a URL list 51 which is his filtering policy. Referring to FIG. 6, user 50 arbitrarily accesses Web site X52. The request for access to the URL of this Web site is transmitted to the proxy server 5 (step S20). In response to the access request to the URL of the website X52, the proxy server 5 confirms (checks) whether or not the URL of the website X52 is registered in the URL list (filtering policy) 51 of the user 50. For this confirmation, the proxy server 5 makes an inquiry to the filtering policy DB 52 (step S21).

  The filtering policy DB 52 receives this inquiry and replies to the proxy server 5 that the URL of the website X 52 is registered in the URL list 51 (filtering policy, black list) of the user 50. The proxy server 5 receives the reply from the filtering policy CB52 and confirms that the URL of the Web site 52 is registered in the blacklist. When this confirmation is completed, a notification is sent to a computer terminal (not shown) of the user 50 that the URL of the Web site 52 is registered in the black list (step S22). The computer terminal (not shown) of the user 50 receives this notification and does not display the Web site X52 requested to access (step S23).

  In this way, it is determined whether or not the URL is registered in the URL list 51 when accessing the URL of the website X52. If the URL is registered, the website X52 is not displayed. Further, even if the URL of the website X52 is registered in the URL list 51, a weighting is given to the registered URL by giving a predetermined threshold, and it is determined whether or not display is permitted based on the threshold. You can also.

  As a threshold value setting for this determination, the number of times that the URL of the Web site 52 is requested to be registered in the URL list 51 is recorded for each of the user 50 itself and another user nearby. Keep it. In this way, for example, a URL transmitted from another user in the vicinity is a URL registered by another user by mistake, or a URL registered by another user for an original reason. there is a possibility. Therefore, when the number of URLs transmitted from other users exceeds a threshold that is a condition for registering in the URL list, the URL is registered in the URL list.

  It should be noted that the Web site displayed by accessing the URL registered in the URL list 51, which is a black list, does not necessarily require the condition that the user 50 has viewed the URL once. is there. This is because the URL of the website X52 that contains content that is unnecessary and harmful to the user 50 includes a URL transmitted from another user associated with the overlay network that exists near the user 50.

  Next, the feedback function by the URL filtering system of the present invention will be described with reference to FIGS. In FIG. 7, the user X55 arbitrarily accesses the Web site 61. The user X55 owns the URL list 62 that is his filtering policy. Referring to FIG. 8, user X55 arbitrarily accesses Web site X61. In this access, it is assumed that the Web site X61 is already registered in the URL list (black list) 62 owned by the user X55. An inquiry about CSN information centered on the user X55 is transmitted from the user X55 to the CSN processing unit 3 (step S30).

  The CSN processing unit 3 receives this inquiry, generates CSN information centered on the user X55, and returns the generated CSN information to the user X55 (step S31). In accordance with the received CSN information, if the number of hops is greater than 0, the user X55 uses another value near the user X55, for example, the user Y56 shown in FIG. URL: X is transmitted together with the new hop number (step S32). The user Y56 registers the URL: X in its own URL list (filtering policy) based on the received URL: X and the new hop number, and transmits an inquiry about CSN information centered on the user Y56 to the CSN processing unit 3. (Step S33).

  The CSN processing unit 3 receives an inquiry about CSN information from the user Y56, and generates CSN information centered on the user Y56. The generated CSN information is returned to the user Y56 (step S34). The user Y56 receives the reply of the CSN information centered on the user Y56 transmitted from the CSN processing unit 3. If the received CSN information indicates that the value of hop count-1 is> 0, a new hop count is generated by subtracting 1 from this hop count, and the URL and the new The number of hops is transmitted (step S35).

  The user Z57 receives the URL: X and the new hop number transmitted from the user Y56, and registers the URL: X in its own URL list. At the same time, the CSN processing unit 3 is inquired about CSN information centered on the user Z57 (step S36). The CSN processing unit 3 receives this inquiry from the user Z57, generates CSN information centered on the user Z57, and returns CSN information centered on the user Z57 to the user Z57 (step S37). The user Z57 receives the CSN information centered on the user Z57. If the number of hops −1 is> 0, the value obtained by subtracting 1 from the number of hops is set as the new hop number. URL: X is transmitted (step S38).

  As described above, when the URL of the website X61 is already registered in the URL list 62 when the user X55 accesses the website X61, the other user Y56, the user Z57 in the vicinity, or the other vicinity URL of Web site X61 is transmitted to the user. On the overlay network based on CSN information, for example, even if the URL list of the user is greatly updated, a feedback function is provided in which URL information is transmitted from other nearby users and the URL list is made common.

  In the URL filtering system of the present invention described above, a method has been described in which URLs of websites are registered in a URL list owned by a user and certain restrictions are imposed on content browsing. Information may be registered and filtering may be executed. In this case, the information used for the filtering is the information held by the corresponding Web site, for example, information such as written words, images, and creators. Such information may be registered as a filtering policy to selectively restrict access to the URL of the website, and may be transmitted to other nearby users.

The block diagram for demonstrating the whole structure based on embodiment of the URL filtering system of this invention is shown. The block diagram for demonstrating the whole structure based on other embodiment of the URL filtering system of this invention is shown. An explanatory view for explaining a URL registration function concerning an embodiment of a URL filtering system of the present invention is shown. The sequence diagram for demonstrating the URL registration function based on embodiment of the URL filtering system of this invention is shown. An explanatory view for explaining a filtering function concerning an embodiment of a URL filtering system of the present invention is shown. The sequence diagram for demonstrating the filtering function based on Embodiment of the URL filtering system of this invention is shown. An explanatory view for explaining a feedback function concerning an embodiment of a URL filtering system of the present invention is shown. The sequence diagram for demonstrating the feedback function based on embodiment of the URL filtering system of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 URL filtering system 2 Network 3 CSN processing part 4 URL filtering processing part 5 Proxy server 6 Client A
7 Client B
8 Client C
9 CSN information database 10 CSN information acquisition unit 11 URL registration unit 12 CSN information interpretation unit 13 URL transmission unit 14 Client A filtering policy DB
15 Client B filtering policy DB
16 Client C filtering policy DB
20 Proxy function 21 URL registration function 22 Browser 43, 44, 51, 62, 63 URL list

Claims (26)

In a URL filtering system for selecting information on a website and providing it to a user,
A network constructed by connecting a plurality of users having similar contexts with the access history of the URL of the website accessed by the user as a context;
A list of URLs registered and generated by the user's selection from among the URLs and owned by each of the users;
URL transmitting means owned by each of the users in order to transmit the URL registered in the URL list to other users other than the user via the network;
URL acquisition means owned by each of the users for receiving the URL transmitted by the URL transmission means and registering the URL in its own URL list;
A URL filtering system comprising: In a URL filtering system for selecting information on a website and providing it to a user,
A network constructed by connecting a plurality of users having similar contexts with the access history of the URL of the website accessed by the user as a context;
A list of URLs registered and generated by the user's selection from among the URLs and owned by each of the users;
URL transmitting means owned by each of the users in order to transmit the URL registered in the URL list to other users other than the user via the network;
URL acquisition means that the user owns in order to receive the URL transmitted by the URL transmission means and store and register for each URL of the same type already registered in the URL list of the user,
Display restriction means for extracting the URL in which the accumulated amount of the URL exceeds a preset threshold, and restricting image display of a website corresponding to the URL;
A URL filtering system comprising: The regulation is
The URL filtering system according to claim 2, wherein the URL filtering system is either prohibition or permission of image display of the Web site. In a URL filtering system for selecting information on a website and providing it to a user,
A network constructed by connecting a plurality of users having similar contexts with the access history of the URL of the website accessed by the user as a context;
A list of URLs registered and generated by the user's selection from among the URLs and owned by each of the users;
URL transmitting means owned by each of the users in order to transmit the URL registered in the URL list to other users other than the user via the network;
URL acquisition means owned by each of the users for receiving the URL transmitted by the URL transmission means and registering the URL in its own URL list;
Feedback means for transmitting the URL to a user other than the user when the URL of the website that the user is trying to access is already registered in the URL list of the user;
A URL filtering system comprising:   The URL filtering system according to claim 1, wherein information registered in the URL list is information other than the URL included in the Web site. The information is
The URL filtering system according to claim 5, wherein the URL filtering system includes at least one of a creator of the website, a word, and an image. In a URL filtering method for selecting information on a website and providing it to a user,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
Configuring URL transmission means owned by each of the users in order to transmit the URL registered in the URL list to other users other than the user via the network;
A URL filtering method comprising: URL acquisition means each owned by the user for receiving the URL transmitted by the URL transmission means and registering it in the URL list of the user. In a URL filtering method for selecting information on a website and providing it to a user,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
In order to transmit the URL registered in the URL list to other users other than the user via the network, URL transmission means owned by each of the users is constructed,
The URL transmitted by the URL transmitting means is received, and the URL acquiring means owned by the user is constructed in order to accumulate and register each URL of the same type already registered in the URL list of the user. And
A URL filtering method characterized in that the URL whose accumulated amount exceeds a preset threshold is extracted, and display restriction means for restricting image display of a Web site corresponding to the URL is constructed. The regulation is
9. The URL filtering method according to claim 8, wherein the image display of the Web site is either prohibited or permitted. In a URL filtering method for selecting information on a website and providing it to a user,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
In order to transmit the URL registered in the URL list to other users other than the user via the network, URL transmission means owned by each of the users is constructed,
In order to receive the URL transmitted by the URL transmission means and register it in the URL list of the user, the URL acquisition means owned by the user is constructed,
A URL filtering method for constructing a feedback means for transmitting the URL to a user other than the user when the URL of the Web site to be accessed by the user is already registered in the URL list of the user .   The URL filtering method according to claim 7, wherein information registered in the URL list is information other than the URL included in the Web site. The information is
The URL filtering method according to claim 11, wherein the URL filtering method includes at least one of a creator, a word, and an image of the website. In a URL filtering program for selecting and providing information to a user on a website,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
Configuring URL transmission means owned by each of the users in order to transmit the URL registered in the URL list to other users other than the user via the network;
A URL filtering program comprising URL acquisition means each owned by the user for receiving the URL transmitted by the URL transmission means and registering it in the URL list of the user. In a URL filtering program for selecting and providing information to a user on a website,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
In order to transmit the URL registered in the URL list to other users other than the user via the network, URL transmission means owned by each of the users is constructed,
The URL transmitted by the URL transmitting means is received, and the URL acquiring means owned by the user is constructed in order to accumulate and register each URL of the same type already registered in the URL list of the user. And
A URL filtering program that extracts a URL for which the accumulated amount of the URL exceeds a preset threshold value and constructs a display restriction unit that restricts image display of a Web site corresponding to the URL. The regulation is
15. The URL filtering program according to claim 14, wherein the URL filtering program is either prohibition or permission of image display of the Web site. In a URL filtering program for selecting and providing information to a user on a website,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
In order to transmit the URL registered in the URL list to other users other than the user via the network, URL transmission means owned by each of the users is constructed,
In order to receive the URL transmitted by the URL transmission means and register it in the URL list of the user, the URL acquisition means owned by the user is constructed,
A URL filtering program for constructing feedback means for transmitting the URL to a user other than the user when the URL of the Web site to be accessed by the user is already registered in the URL list of the user .   The URL filtering program according to any one of claims 7 to 10, wherein information registered in the URL list is information other than the URL included in the Web site. The information is
The URL filtering program according to claim 17, wherein the URL filtering program includes at least one of a creator of the website, a word, and an image.   The URL filtering program according to claim 13, which can be executed on a server. In a recording medium that records a URL filtering program for selecting and providing information to a user on a website,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
Configuring URL transmission means owned by each of the users in order to transmit the URL registered in the URL list to other users other than the user via the network;
A recording medium on which a URL filtering program is recorded, which constitutes a URL acquisition unit owned by each of the users in order to receive the URL transmitted by the URL transmission unit and register it in the URL list of the user . In a recording medium that records a URL filtering program for selecting and providing information to a user on a website,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
In order to transmit the URL registered in the URL list to other users other than the user via the network, URL transmission means owned by each of the users is constructed,
The URL transmitted by the URL transmitting means is received, and the URL acquiring means owned by the user is constructed in order to accumulate and register each URL of the same type already registered in the URL list of the user. And
A record in which a URL filtering program is recorded, in which the URL whose accumulated amount exceeds a preset threshold is extracted and display restriction means for restricting image display of a website corresponding to the URL is constructed. Medium. The regulation is
The recording medium recording the URL filtering program according to claim 21, wherein the recording of the URL filtering program according to claim 21 is either prohibition or permission of image display of the Web site. In a recording medium that records a URL filtering program for selecting and providing information to a user on a website,
Using the access history of the URL of the website accessed by the user as a context, constructing a network by connecting a plurality of the users having the similar context,
Create a URL list that is registered and generated by the user's selection from among the URLs and that each user owns,
In order to transmit the URL registered in the URL list to other users other than the user via the network, URL transmission means owned by each of the users is constructed,
In order to receive the URL transmitted by the URL transmission means and register it in the URL list of the user, the URL acquisition means owned by the user is constructed,
A URL filtering program for constructing feedback means for transmitting the URL to a user other than the user when the URL of the Web site to be accessed by the user is already registered in the URL list of the user Recording medium that recorded.   The recording medium recorded with the URL filtering program according to claim 7, wherein information registered in the URL list is information other than the URL included in the Web site. The information is
25. The recording medium recorded with the URL filtering program according to claim 24, comprising at least one of a creator of the website, a word, and an image.   26. The recording medium recording the URL filtering program according to claim 20, wherein the URL filtering program is executable on a server.

Images