JP4418487B2 - Structured document conversion apparatus, structured document conversion method, and structured document conversion program - Google Patents

Description

  The present invention relates to a structured document conversion apparatus, a structured document conversion method, and a structured document conversion program for converting a structured document (for example, an XHTML document).

  With the recent increase in processing speed in networks and terminals, multimedia content (video, audio, etc.) distribution technology realized in a wide area network such as the Internet has attracted attention. One of the technologies is UMA (Universal Multimedia Access). This UMA is a technology for customizing and distributing multimedia contents according to the environmental conditions on the user side. Here, the environmental situation on the user side includes, for example, the processing capability of the terminal used by the user, the processing capability of the network to which the terminal is connected, or the location and time zone of the user. As another technique, there is a technique called AAA (Authentication Authorization Accounting). This AAA is a technique for customizing and distributing various services provided in the wide area network according to the status status of the user. Here, examples of the user status include user age, affiliation, and license.

  As described above, techniques for distributing multimedia contents, network services, and the like according to various situations on the user side are disclosed in Non-Patent Documents 1 and 2, for example.

  Non-Patent Document 1 describes XHTML (eXtensible HyperText Markup Language), which is a language for describing structured documents, based on user information (user status status) such as user ID, password, IP address, and user authority. It is disclosed that access control from a user is performed by converting the described XHTML document into an XHTML document according to the authority of each user and distributing it to the user.

Non-Patent Document 2 discloses a technique for converting an XHTML document, which is a structured document, into an XHTML document adapted to each environmental situation based on the environmental situation of each user. In the technique disclosed in Non-Patent Document 2, an XHTML document is converted using an existing style sheet such as CSS (Cascading Style Sheet) or XSLT (XML Stylesheet Language Transform).
E. Damiani, S. Vimercati, S. Paradoshi, P. Samarati, “Design and Implementation of an Access Control Processor for XML Documents”, In Proceedings of the 9th International WWW Conference, May 2000 F.Bry, M.Kraus, "Adaptive Hypermedia madesimple using HTML / XML Style Sheet Selectors", In Proceedings of the 2th International Conference on Adaptive Hypermedia and Adaptive Web Based Systems (AH 2002)

  However, Non-Patent Document 1 described above does not disclose a mechanism for converting an XHTML document that is a structured document. Further, in the technique described in Non-Patent Document 2 described above, when using an existing style sheet, it is necessary to change the conversion rule incorporated in the style sheet, and the work is difficult. It was.

  Accordingly, the present invention provides a structured document conversion apparatus, a structured document conversion method, and a structured document conversion program capable of converting a structured document according to a user's situation in order to solve the above-described problems. The purpose is to do.

In the structured document conversion apparatus of the present invention, a distribution rule of multimedia content is described, distribution rule information including information for identifying the multimedia content, and a situation on the receiving side of the multimedia content are described. Based on the distribution rule information and the situation information acquired by the acquisition means, the distribution rule included in the distribution rule information is evaluated based on the situation on the receiving side included in the situation information. information about the multimedia content, the image scene unit as an object, from the description structured document together with the playback start time or playback time, based on the result of the evaluation, remove the video scene is a negative evaluation or with changing, describes the conversion rule for copying the video scene is a positive evaluation transformation Generating means for generating a power law information, based on the conversion rule information generated by the generating means, characterized in that it comprises converting means for converting the structured document.

Also, the structured document conversion method of the present invention, the distribution rule information distributing rules of the multimedia contents includes information identifying the multimedia content with the description, and the receiving side of the status of the multimedia content is described The communication device included in the structured document conversion apparatus acquires the status information to be acquired, and the distribution rule included in the distribution rule information is determined based on the acquisition step acquired in the acquisition step and the distribution rule information and the status information. evaluated on the receiving side of the status included in the status information, information related to the multimedia content, the image scene unit as an object, from the description structured document together with the playback start time or playback time, based on the result of the evaluation , dissipate delete or modify the video scene is a negative evaluation, positive evaluation The conversion rule information that describes the conversion rule for copying the certain video scene, CPU included in the structured document conversion device, a generation step of generating, based on the conversion rule information generated in the generation step, the structured document CPU A conversion step of converting.

Further, the structured document conversion program of the present invention, the computer, the distribution rule information distributing rule includes information identifying the multimedia content with the description of the multimedia content, and the recipient of the multimedia content status The acquisition means for acquiring the situation information in which is described, the distribution rule information included in the distribution rule information based on the distribution rule information and the situation information acquired by the acquisition means, and the situation on the receiving side included in the situation information in evaluating information about the multimedia content, the image scene unit as an object, from the description structured document together with the playback start time or playback time, based on the result of the evaluation, the image scene is a negative evaluation together is removed or changed, by copying the video scene is a positive evaluation Generating means for generating a conversion rule information that describes the conversion rule, based on the conversion rule information generated by the generating means and thereby function as a converting means for converting the structured document.

  According to these inventions, the conversion rule information is generated on the basis of the distribution rule information and the receiving side situation information, and the structured document is converted on the basis of the conversion rule information. It can be converted according to.

In the structured document conversion apparatus of the present invention, the generation unit extracts, from the distribution rule information , an evaluation target that is a condition related to the situation on the receiving side, which is included in the distribution rule, and that deletes or changes an object . 1 extracting means, a second extracting means for extracting a situation on the receiving side corresponding to the evaluation object from the situation information based on the evaluation object extracted by the first extracting means, and the second extracting means If the status of the extracted receiver is configured to include an evaluation means for evaluating whether or not satisfy the condition, the result of the evaluation performed by the evaluation unit, the receiving-side status condition is satisfied by, It is preferable to generate conversion rule information describing a conversion rule for deleting or changing an object .

Also, in the structured document conversion method of the present invention, the generation step includes, from the distribution rule information , an evaluation target that is a condition related to the situation on the receiving side, which is included in the distribution rule, for deleting or changing an object. And a second extraction step in which the CPU extracts the situation on the receiving side corresponding to the evaluation object from the situation information based on the evaluation object extracted in the first extraction step. , the status of the second recipient extracted in the extraction step of is configured to include an evaluation step of evaluating whether satisfy conditions CPU, the result of the evaluation performed in the evaluation step, the receiving side It is preferable to generate conversion rule information describing a conversion rule for deleting or changing an object when the above condition satisfies the condition .

Furthermore, in the structured document conversion program of the present invention, the generation means extracts from the distribution rule information an evaluation target that is a condition related to the situation on the receiving side, which is included in the distribution rule and deletes or changes the object. First extracting means for extracting, based on the evaluation object extracted by the first extracting means, second extracting means for extracting the situation on the receiving side corresponding to the evaluation object from the situation information, and the second status of the extracted by the extracting means receiving side is configured to include an evaluation means for evaluating whether or not satisfy the condition, the result of the evaluation performed by the evaluation unit, if the status of the receiving side satisfies the condition It is preferable to generate conversion rule information describing a conversion rule for deleting or changing an object .

  In this way, conditions included in the distribution rule can be evaluated based on the situation on the receiving side. For example, information on the user is described in the situation on the receiving side, and the receiving side is included in the distribution rule information. By describing the distribution rule information according to the situation, it becomes possible to perform the distribution control on the structured document according to the situation on the receiving side.

In the structured document conversion apparatus of the present invention, the distribution rules, information and identifying the target user to the distribution rule applies, further preferably contains information identifying the operation to be performed on the content.

Further, the structured document conversion method of the present invention, the distribution rules, information and identifying the target user to the distribution rule applies, further preferably contains information identifying the operation to be performed on the content.

Furthermore, in the structured document conversion program of the present invention, the distribution rule preferably further includes information for identifying a target user to which the distribution rule is applied and information for identifying an operation to be performed on the content .

  In the structured document conversion apparatus of the present invention, the conversion rule information generated by the generation unit is associated with the evaluation object extracted by the first extraction unit and the reception-side situation extracted by the second extraction unit. Storage means for storing is further provided, and the generation means stores the conversion rule information stored by the storage means based on the evaluation object extracted by the first extraction means and the situation on the receiving side extracted by the second extraction means. From this, it is comprised including the 3rd extraction means which extracts the conversion rule information corresponding to the said evaluation object and the condition of the said receiving side, The said production | generation means was not extracted by the 3rd extraction means In this case, the conversion rule information is generated based on the result of the evaluation performed by the evaluation unit, and the conversion unit extracts the conversion rule information when the conversion rule information is extracted by the third extraction unit. Based on the conversion rule information, it is preferable to convert a structured document.

  Further, in the structured document conversion method of the present invention, the conversion generated in the generation step in correspondence with the evaluation object extracted in the first extraction step and the situation on the receiving side extracted in the second extraction step. The storage device further includes a storage step in which the storage device stores the rule information, and the generation step includes the step of storing based on the evaluation object extracted in the first extraction step and the situation on the receiving side extracted in the second extraction step. The stored extraction rule information includes a third extraction step in which the CPU extracts conversion rule information corresponding to the evaluation target and the situation on the receiving side, and the generation step is performed in the third extraction step. If conversion rule information is not extracted, conversion is performed based on the result of the evaluation performed in the evaluation step. Preferably, the CPU generates rule information, and the conversion step preferably causes the CPU to convert the structured document based on the extracted conversion rule information when the conversion rule information is extracted in the third extraction step. .

  Furthermore, in the structured document conversion program of the present invention, the conversion generated by the generation unit in correspondence with the evaluation object extracted by the first extraction unit and the situation on the receiving side extracted by the second extraction unit Storage means for storing rule information is further provided, and the generation means is stored by the storage means on the basis of the evaluation object extracted by the first extraction means and the situation on the receiving side extracted by the second extraction means. The conversion rule information includes a third extraction means for extracting the conversion rule information corresponding to the evaluation target and the situation on the receiving side, and the generation means extracts the conversion rule information by the third extraction means. If not, the conversion rule information is generated based on the result of the evaluation performed by the evaluation unit, and the conversion unit extracts the conversion rule information by the third extraction unit. The case, based on the conversion rule information which is the extraction, it is preferable to convert a structured document.

  In this way, since the existing conversion rule information can be acquired and reused, the structured document can be converted at a higher speed.

  According to the structured document conversion apparatus, the structured document conversion method, and the structured document conversion program according to the present invention, the structured document can be converted according to the situation on the user side.

  Embodiments of a structured document conversion apparatus according to the present invention will be described below with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same element and the overlapping description is abbreviate | omitted.

[First embodiment]
FIG. 1 is a diagram illustrating a configuration of a communication system including a structured document conversion apparatus according to the first embodiment of the present invention. As shown in FIG. 1, the communication system 1 includes a structured document conversion device 10, a content distribution server 20 that distributes multimedia content, the Internet IN, and a user terminal 30 that can be connected to the Internet. Note that there may actually be a plurality of structured document conversion apparatuses 10, content distribution servers 20, and user terminals 30 shown in FIG. 1, but in order to prevent the drawing from becoming complicated, FIG. Only the structured document conversion apparatus 10, the content distribution server 20, and the user terminal 30 are shown.

  Next, the structured document conversion apparatus 10 shown in FIG. 1 will be described. The structured document conversion apparatus 10 is connected to the content distribution server 20. The structured document conversion apparatus 10 is an apparatus that converts a distribution information structured document describing information about multimedia contents distributed by the content distribution server 20 into a distribution information structured document according to the situation on the user terminal 30 side. is there.

  Here, as a language for describing the structured document, for example, XHTML, SGML (Standard Generalized Markup Language), HTML (Hyper Text Markup Language), XML (eXtensible Markup Language), and the like are applicable. In this embodiment, for convenience of explanation, the description is made using XHTML as a language for describing a structured document. However, this does not mean that the structured document is limited to an XHTML document.

  The structured document conversion apparatus 10 according to the present embodiment is described as an apparatus independent of the content distribution server 20, but is not limited to this. For example, various functions of the structured document conversion apparatus 10 described later can be used for content distribution. The server 20 may be provided.

  Next, the hardware configuration of the structured document conversion apparatus 10 will be described with reference to FIG. As shown in FIG. 2, the structured document conversion device 10 includes a CPU 10A, a storage device 10B, and a communication device 10C, and these devices are connected by a bus 10D.

  The CPU 10A controls each device connected via the bus 10D by executing various programs stored in the storage device 10B. The communication device 10C is a communication interface for connecting to a network such as the Internet IN.

  The storage device 10B includes a ROM (Read Only Memory) 10Ba, a RAM (Random Access Memory) 10Bb, and a nonvolatile memory 10Bc such as an EEPROM (Electrically Erasable Programmable Read Only Memory). Various programs executed by the CPU 10A are stored in the ROM 10Ba. The RAM 10Bb temporarily stores programs and data executed by the CPU 10A and is used as a work area for the CPU 10A.

  The nonvolatile memory 10Bc has a structured document conversion program storage area c1 and an evaluation target table storage area c2. The structured document conversion program storage area c1 stores a program for realizing a structured document conversion process to be described later. The evaluation target table is stored in the evaluation target table storage area c2. The evaluation target table is a table that stores information on whether or not the evaluation target is an evaluation target related to the situation on the user side in association with each evaluation target to be described later.

  Next, the functional configuration of the structured document conversion apparatus 10 constituting the communication system 1 will be described with reference to FIG. As shown in FIG. 3, the structured document conversion apparatus 10 includes an acquisition unit 11, a conversion rule information generation unit 12, a conversion unit 16, and an output unit 17.

  The acquisition unit 11 acquires the distribution rule information, the user situation information, and the distribution information structured document output from the content distribution server 20. Here, the distribution rule information is an XHTML document that describes a distribution rule when distributing multimedia content described in a distribution information structured document. The user status information is an XHTML document that describes the status on the user terminal 30 side that receives the multimedia content described in the distribution information structured document. In the following, the distribution information structured document, distribution rule information, and user situation information will be described in detail.

  First, with reference to FIG. 4, a distribution information structured document describing information about multimedia contents will be described. In the MediaInformation description section 41 shown in FIG. 4, properties related to multimedia contents are described. As this property, for example, there is a URI (Uniform Resource Identifier) of multimedia content or a coding method of multimedia content. In the MediaTime description section 42, the playback start time or playback time of multimedia content is described.

  In the AudioVisualSegment description sections 43 and 44, properties relating to the objects (for example, video scenes) “sc01” and “sc02” included in the multimedia content are described. As this property, for example, there are a MediaTime description part 43b, 44b in which the reproduction start time or reproduction time of the object is described, or a PointOfView description part 43a, 44a in which a keyword indicating the content of the object is described. In the PointOfView description part 43a shown in FIG. 4, “Violence” is described as a keyword (Viewpoint) indicating the content of the object “sc01”, and “0.0” is described as the value (Value) of this object. These descriptions indicate that the degree of “Violence” included in the object “sc01” is “0.0” (the degree is indicated by 0.0 to 1.0). In the PointOfView description part 44a, “Violence” is described as a keyword indicating the content of the object “sc02”, and “0.8” is described as the value of this object. These descriptions indicate that the degree of “Violence” included in the object “sc02” is “0.8”.

  Next, the distribution rule information will be described with reference to FIG. As shown in FIG. 5, the distribution rule information includes a target description part 51 and a ruleSet description part 52. The target description part 51 includes a subjects description part 51a describing information for identifying a target user to which the distribution rule is applied, a resources description part 51b describing information for identifying a target document to be distributed, and a target user. Describes an action description part 51c that describes information for identifying an action to be performed on the target document. Information related to the target user is described in the subjects description section 51a, and FIG. 5 describes “*” indicating that all users who have logged into the content distribution server 20 are targets. Further, information about the target document is described in the resources description section 51b, and “//xx.com/c01.xml” (URI) is described as the target document in FIG. Further, in the actions description section 51c, an operation performed by the target user on the target document is described, and in FIG. 5, “read” is described as the operation. These descriptions are for all users who have logged in to the content distribution server 20, and determine whether or not the target user meets the conditions described in the ruleSet description unit 52, and only users who meet the conditions will be judged. This indicates that “//xx.com/c01.xml” can be “read”.

  In the ruleSet description part 52, a distribution rule for the target user specified by the target description part 51 is described. In the ruleSet description part 52, condition description parts 52a and 52b are described. In the condition description part 52a shown in FIG. 5, among the objects included in the multimedia content, “Violence” is described in the PointOfView description part described in the distribution information structured document shown in FIG. A condition that an object whose degree value is “0.5” or more is targeted is described. In the condition description part 52b, "vip" is described in the role of the user described in the user status information described later among the users who have logged into the content distribution server 20, and the age (age ) Describes a condition that the user is “18” or older.

  Therefore, the distribution rule information shown in FIG. 5 includes “Violence” described in the PointOfView description part of the distribution information structured document (//xx.com/c01.xml) and a value indicating the degree. For an object having a value of “0.5” or more, there is a distribution rule that “vip” is described in the user role of the user status information and only a user who is “18” or older can be “read”. is described.

  Next, user status information will be described with reference to FIG. As shown in FIG. 6, one or a plurality of component description units 61 are described in the user status information. In the component description part 61, a UserProfile description part in which information about the user is described, a HardwarePlatform description part in which information about the terminal capability of the user terminal 30 is described, or the like is described. In the UserProfile description part 61a shown in FIG. 6, “guest” is described as the role of the user, and “16” is described as the age. These descriptions indicate that the user of the user terminal 30 logs in to the content distribution server 20 as “guest” and the age is “16”.

  Also, the conversion rule information generation unit 12 generates conversion rule information for converting the distribution information structured document acquired by the acquisition unit 11 based on the distribution rule information and user situation information acquired by the acquisition unit 11. To do. Here, the conversion rule information is an XHTML document in which rules for converting a distribution information structured document according to various situations on the user side are described.

  Here, the conversion rule information will be described with reference to FIG. The conversion rule information shown in FIG. 7 includes template description parts 71 and 72. In this template description section 72, an AudioVisualSegment description section in which “Violence” is described in the PointOfView description section of the distribution information structured document and “0.5” or more is described in the value indicating the degree is described. It describes that it is to be processed. The template description part 71 describes that the AudioVisualSegment description part that is the target of processing by the template description part 72 is deleted from the distribution information structured document, and that other AudioVisualSegment description parts are copied. ing.

  In addition, the conversion rule information generation unit 12 illustrated in FIG. 3 includes an evaluation target extraction unit 13, a user situation extraction unit 14, and a condition evaluation unit 15.

  The evaluation target extraction unit 13 extracts an evaluation target related to the situation on the user side from the evaluation target of each condition description unit included in the distribution rule information. Here, as an evaluation target of each condition description section, for example, an element name, a keyword, and a URI described in a tag are applicable. More specifically, with reference to the distribution rule information shown in FIG. 5, the evaluation target extraction unit 13 includes “PointOfView description unit” and “value” described as evaluation targets in the condition description unit 52a of the distribution rule information. From this, an evaluation object related to the user situation is extracted. In this case, the “PointOfView description part” and “value” that are evaluation targets are evaluation targets related to the object, and are not evaluation targets related to the user situation. Therefore, in this case, the evaluation target extraction unit 13 does not extract the evaluation target. Further, the evaluation object extraction unit 13 extracts an evaluation object related to the user situation from “role” and “age” described as evaluation objects in the condition description part 52b of the distribution rule information. In this case, “role” and “age” that are evaluation targets are evaluation targets related to the user situation. Therefore, the evaluation object extraction unit 13 extracts “role” and “age” as evaluation objects related to the user situation. Here, in the nonvolatile memory 10Bc of the storage device 10B, an evaluation target table is stored that stores information on whether or not the evaluation target is an evaluation target related to the user situation in association with each evaluation target. Yes. Therefore, the evaluation object extraction unit 13 can determine whether or not the evaluation object is an evaluation object related to the user situation by referring to the evaluation object table based on each evaluation object.

  Based on the evaluation target extracted by the evaluation target extraction unit 13, the user status extraction unit 14 extracts the user terminal 30 side status corresponding to the evaluation target from the user status information. Specifically, referring to the user situation information shown in FIG. 6, the user situation extraction unit 14 determines the user situation based on the evaluation targets “role” and “age” extracted by the evaluation object extraction unit 13. As a result, “guest” corresponding to “role” and “16” corresponding to “age” are extracted as the situation on the user terminal 30 side.

  The condition evaluation unit 15 evaluates each condition description unit included in the distribution rule information based on the situation on the user terminal 30 side extracted by the user situation extraction unit 14. Specifically, with reference to the distribution rule information shown in FIG. 5, the condition evaluation unit 15 corresponds to “guest” and “age” corresponding to “role” extracted by the user situation extraction unit 14. Based on each of 16 ″, the condition description parts 52a and 52b shown in FIG. 5 are evaluated. That is, the condition evaluation unit 15 evaluates the condition description unit 52b based on the situation “guest” and “16” on the user terminal 30 side that matches the “role” and “age” that are the evaluation targets of the condition description unit 52b. Do. In the case shown in FIG. 5, for the user of the user terminal 30, the condition evaluation unit 15 describes “Violence” in the PointOfView description part of the distribution information structured document, and the value indicating the degree is “0”. Negative evaluation that an object greater than .5 "cannot be" read ".

  The condition evaluation unit 15 temporarily stores the evaluation result in the RAM 10Bb in association with each condition description unit. More specifically, when the evaluation result is a positive evaluation (true), the condition evaluation unit 15 stores “Permit” in association with the condition description unit, and the evaluation result is negative. In the case of evaluation (false), “Deny” is stored in association with the condition description part. Therefore, since the evaluation result of the condition description unit 52b shown in FIG. 5 is negative, “Deny” is stored on the RAM 10Bb in association with the condition description unit 52b. The condition evaluation unit 15 does not evaluate the condition description unit 52a for which the evaluation target is not extracted by the user situation extraction unit 14.

  The conversion rule information generation unit 12 generates conversion rule information based on the result of the evaluation performed by the condition evaluation unit 15. More specifically, based on the distribution rule information shown in FIG. 5, the condition description part 52a and the condition description part 52b described in the distribution rule information are connected by a logical product. The condition description part 52b is stored in association with “Deny” as described above. Therefore, the conversion rule information generation unit 12 generates conversion rule information that denies items that satisfy the condition description unit 52a. That is, the conversion rule information that “Violence” is described in the PointOfView description part described in the distribution information structured document and an object whose value indicating the degree is “0.5” or more is not permitted. (See FIG. 7) is generated by the conversion rule information generation unit 12.

  In addition, as a conversion rule in the case of disabling as described above, for example, when deleting an object corresponding to disapproval (condition in which negative evaluation is made) from the distribution information structured document, In some cases, the object is changed.

  The conversion unit 16 converts the distribution information structured document (see FIG. 4) based on the conversion rule information (see FIG. 7) generated by the conversion rule information generation unit 12. More specifically, the conversion unit 16 deletes the description portion of the AudioVisualSegment description unit 44 from the distribution information structured document shown in FIG. 4 based on the conversion rule described in the conversion rule information shown in FIG. . Thereby, the part described by the AudioVisualSegment description part 43 and the AudioVisualSegment description part 44 described in the distribution information structured document shown in FIG. 4 is described only by the AudioVisualSegment description part 43 as shown in FIG. It is converted into a part.

  The output unit 17 outputs the distribution information structured document converted by the conversion unit 16 to the content distribution server 20.

  As described above, in the structured document conversion apparatus 10 according to the present embodiment, the distribution information structured document can be converted according to the situation on the user terminal 30 side that is the distribution destination of the multimedia content.

  Next, the operation of the structured document conversion apparatus according to the present invention will be described with reference to FIG. 9 and FIG. First, an outline operation of the structured document conversion process executed in the structured document conversion apparatus 10 will be described with reference to FIG.

  First, the acquisition unit 11 of the structured document conversion apparatus 10 acquires the distribution rule information, the user situation information, and the distribution information structured document output from the content distribution server 20 (step S1).

  Next, the conversion rule information generation unit 12 of the structured document conversion apparatus 10 executes conversion rule information generation processing, which will be described later, based on the distribution rule information and the user situation information acquired by the acquisition unit 11 to convert the conversion rule information. Is generated (step S2).

  Next, the conversion unit 16 of the structured document conversion apparatus 10 acquires the conversion rule information generated by the conversion rule information generation unit 12, and converts the distribution information structured document based on the conversion rule information (step) S3).

  Then, the output unit 17 of the structured document conversion apparatus 10 outputs the distribution information structured document converted by the conversion unit 16 to the content distribution server 20 (step S4).

  Next, the detailed operation of the conversion rule information generation process (S2 in FIG. 9) will be described with reference to FIG. The evaluation object extraction unit 13 of the structured document conversion apparatus 10 selects an evaluation object related to the user situation among the evaluation objects of each condition description part included in the distribution rule information acquired by the acquisition unit 11. (Step S11).

  The user situation extraction unit 14 of the structured document conversion apparatus 10 extracts the situation on the user terminal 30 side corresponding to the evaluation object from the user situation information based on the evaluation object extracted by the evaluation object extraction unit 13 (step) S12).

  The condition evaluation unit 15 of the structured document conversion apparatus 10 evaluates each condition description unit based on the situation on the user terminal 30 side extracted by the user situation extraction unit 14 (step S13), and the evaluation result is positive. It is determined whether or not the evaluation is correct (step S14). If this determination is YES (step S14; YES), the condition evaluation unit 15 stores “Permit” on the RAM 10Bb in association with the condition description unit (step S15). On the other hand, when it is determined in the determination in step S14 that the evaluation result of the condition description part is a negative evaluation (step S14; NO), the condition evaluation part 15 corresponds to the condition description part, “Deny” is stored in the RAM 10Bb (step S16).

  The conversion rule information generation unit 12 of the structured document conversion apparatus 10 generates conversion rule information based on the result of the evaluation performed by the condition evaluation unit 15 (step S17). This will be described in detail based on the distribution rule information shown in FIG. 5. In the conversion rule information generation unit 12, the condition description unit 52a and the condition description unit 52b are connected by a logical product. Based on the fact that it is “Deny”, conversion rule information is generated that disallows the one that satisfies the condition description part 52a. That is, the conversion rule information generation unit 12 describes “Violence” in the PointOfView description unit described in the distribution information structured document, and a value (value) indicating the degree is “0.5” or more. The object generates conversion rule information (see FIG. 7) to be deleted.

  Thus, by describing the user's age and the like in the user situation information, and by describing information on the access right according to the user's age and the like in the distribution rule information, the distribution information structured document can be processed according to the user situation information. Access control can be performed.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The structured document conversion apparatus 10s in the second embodiment differs from the structured document conversion apparatus 10 in the first embodiment in that the structured document conversion apparatus 10s in the second embodiment stores the generated conversion rule information. In the structured document conversion apparatus 10 in the first embodiment, the stored conversion rule information is reused when the distribution information structured document is stored in the apparatus and converted from the next time. It is different in that conversion rule information is generated every time a converted document is converted.

  First, the hardware configuration of the structured document conversion apparatus 10s in the present embodiment will be described with reference to FIG. As shown in FIG. 11, the structured document conversion apparatus 10s in the present embodiment is structured in the first embodiment in that the nonvolatile memory 10Bc of the storage device 10B further includes a conversion rule information storage area c3. This is different from the hardware configuration of the document conversion apparatus 10. Therefore, since the other configuration is the same as the hardware configuration of the structured document conversion apparatus 10 in the first embodiment, the same reference numerals are given to the respective components and the description thereof will be omitted. The conversion rule information storage area c3 that is a difference from the first embodiment will be described.

  Conversion rule information generated by the conversion rule information generation unit is stored in the conversion rule information storage area c3 of the nonvolatile memory 10Bc. The conversion rule information is stored in association with the evaluation object extracted by the evaluation object extraction unit and the situation on the user terminal 30 side extracted by the user situation extraction unit.

  Next, a functional configuration of the structured document conversion apparatus 10s in the present embodiment will be described with reference to FIG. As shown in FIG. 12, the structured document conversion apparatus 10 s in the present embodiment further includes a conversion rule information storage unit 18 and a conversion rule information extraction unit 19 in the structured document conversion apparatus in the first embodiment. Different from 10 functional configurations. Therefore, since the other configuration is the same as the functional configuration of the structured document conversion apparatus 10 in the first embodiment, the same reference numerals are given to the respective components and the description thereof will be omitted. The conversion rule information storage unit 18 and the conversion rule information extraction unit 19 which are different from the embodiment will be described.

  The conversion rule information storage unit 18 stores the conversion rule information generated by the conversion rule information generation unit 12 in the conversion rule information storage area c3. When the conversion rule information storage unit 18 stores the conversion rule information, the conversion rule information storage unit 18 corresponds to the evaluation target extracted by the evaluation target extraction unit 13 and the situation on the user terminal 30 side extracted by the user situation extraction unit 14. Store rule information.

  The conversion rule information extraction unit 19 is stored in the conversion rule information storage area c3 based on the evaluation object extracted by the evaluation object extraction unit 13 and the situation on the user terminal 30 side extracted by the user situation extraction unit 14. Search conversion rule information. The conversion rule information extraction unit 19 extracts conversion rule information corresponding to the evaluation target and the situation on the user terminal 30 side from the conversion rule information storage area c3.

  When the conversion rule information is extracted by the conversion rule information extraction unit 19, the conversion unit 16 converts the distribution information structured document based on the extracted conversion rule information. Further, when the conversion rule information is not extracted by the conversion rule information extraction unit 19, the conversion unit 16 is based on the conversion rule information generated by the conversion rule information generation unit 12 as in the first embodiment. , Convert delivery information structured document.

  Next, the operation of this embodiment will be described. First, regarding the outline operation of the structured document conversion process executed in the structured document conversion apparatus 10s in the present embodiment, the structured document conversion process executed in the structured document conversion apparatus 10 described in the first embodiment will be described. Since this is the same as the outline operation, the description is omitted. However, among the outline operations of the structured document conversion process, the conversion rule information generation process (S2 in FIG. 9) is different from the first embodiment and will be described below.

  Next, the detailed operation of the conversion rule information generation process will be described with reference to FIG. Note that the processes in steps S31, S32, S35 to S39 shown in FIG. 13 are the same as the processes in steps S11 to S17 described in detail in the first embodiment (see FIG. 10), and thus the description thereof is omitted. Each process of steps S33, S34, and S40 different from the first embodiment will be described.

  As shown in FIG. 13, in step S <b> 33, the conversion rule information extraction unit 19 of the structured document conversion apparatus 10 s extracts the evaluation target extracted by the evaluation target extraction unit 13 and the user terminal 30 extracted by the user situation extraction unit 14. Based on the situation on the side, conversion rule information corresponding to the evaluation target and the situation on the user terminal 30 side is extracted from the conversion rule information stored in the conversion rule information storage area c3 (step S33).

  Next, the conversion rule information extraction unit 19 of the structured document conversion apparatus 10s determines whether conversion rule information corresponding to the evaluation target and the situation on the user terminal 30 side can be extracted (step S34). If this determination is YES (step S34; YES), the structured document conversion apparatus 10s ends the conversion rule information generation process. As a result, the conversion unit 16 converts the distribution information structured document based on the conversion rule information extracted in step S33.

  On the other hand, when the conversion rule information corresponding to the evaluation target and the situation on the user terminal 30 side cannot be extracted in the determination in step S34 (step S34; YES), FIG. 10 described in the first embodiment. The same processing as steps S13 to S17 is performed (steps S35 to S39). The conversion rule information storage unit 18 then converts the conversion rule information generated by the conversion rule information generation unit 12 in step S39 into the evaluation target extracted by the evaluation target extraction unit 13 and the user extracted by the user situation extraction unit 14. Corresponding to the situation on the terminal 30 side, it is stored in the conversion rule information storage area c3 (step S40).

  As described above, in the structured document conversion apparatus 10s according to the present embodiment, the conversion rule information generated by the conversion rule information generation unit 12 is stored in the storage device. Can be used. Therefore, the structured document conversion process can be performed at a higher speed.

[Modification]
In each of the embodiments described above, the user's age and the like are described in the user status information, and the information on the access right according to the user's age and the like is described in the distribution rule information, thereby responding to the user status information. Access control is performed. However, the present invention is not limited to such access control. For example, the network status or the server load on the server or the server side is described in the user status information, and the network access corresponding to the communication congestion on the distribution rule information is provided. It is also possible to perform network control according to user situation information by describing information about rules.

  In the second embodiment described above, when the conversion rule information is stored in the storage device and the distribution information structured document is converted after the next time, the stored conversion rule information is reused. However, it is not limited to such reuse. For example, the conversion rule information and the distribution information structured document converted by the conversion rule information are included in the conversion rule information and the distribution information structured document before conversion. You may make it memorize | store in correspondence with. As a result, when the conversion rule information extracted based on the evaluation target included in the distribution information structured document before conversion and the evaluation target included in the conversion rule information is the same as the conversion rule information to be processed Since the post-conversion distribution information structured document stored in correspondence with the conversion rule information can be output as it is from the output unit, the speed can be further increased.

  Finally, a structured document conversion program according to an embodiment of the present invention and a computer-readable recording medium (hereinafter simply referred to as a recording medium) on which the structured document conversion program is recorded will be described. Here, the recording medium causes a state of change in energy such as magnetism, light, electricity, etc., corresponding to the description content of the program to the reading device provided in the hardware resource of the computer, and corresponds to it. The contents of the program description can be transmitted to the reading device in the form of a signal. Examples of such a recording medium include a magnetic disk, an optical disk, a CD-ROM, and a memory built in a computer.

  FIG. 14 is a configuration diagram of a recording medium according to the embodiment of the present invention. As shown in FIG. 14, the recording medium 100 includes a program area 101 for recording a program. In the program area 101, a structured document conversion program 102 is recorded. The structured document conversion program 102 includes an acquisition module 102a, a conversion rule information generation module 102b, a conversion module 102c, and an output module 102d. Here, the functions realized by operating the acquisition module 102a, the conversion rule information generation module 102b, the conversion module 102c, and the output module 102d are the acquisition unit 11 and the conversion rule information generation unit of the structured document conversion apparatus 10, respectively. 12, the conversion unit 16, and the output unit 17 have the same functions.

It is a block diagram of the communication system in each embodiment of this invention. It is a block diagram which shows the hardware constitutions of the structured document conversion apparatus in 1st Embodiment. It is a functional block diagram of the structured document conversion apparatus in the first embodiment. It is a figure for demonstrating a delivery information structured document. It is a figure for demonstrating delivery rule information. It is a figure for demonstrating user status information. It is a figure for demonstrating conversion rule information. It is a figure for demonstrating a part of delivery information structured document after conversion. It is a flowchart which shows the outline | summary operation | movement of the structured document conversion process in each embodiment. It is a flowchart which shows the operation | movement of the conversion rule information generation process in 1st Embodiment. It is a block diagram which shows the hardware constitutions of the structured document conversion apparatus in 2nd Embodiment. It is a functional block diagram of the structured document conversion apparatus in the second embodiment. It is a flowchart which shows the operation | movement of the conversion rule information generation process in 2nd Embodiment. It is a block diagram of the recording medium which recorded the structured document conversion program.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Communication system 10, 10s ... Structured document conversion apparatus, 10A ... CPU, 10B ... Storage device, 10Bc ... Non-volatile memory, c1 ... Structured document conversion program storage Area, c2 ... evaluation object table storage area, c3 ... conversion rule information storage area, 10C ... communication device, 10D ... bus, 11 ... acquisition unit, 12 ... conversion rule information generation , 13 ... Evaluation object extraction unit, 14 ... User situation extraction unit, 15 ... Condition evaluation unit, 16 ... Conversion unit, 17 ... Output unit, 18 ... Conversion rule information storage , 19 ... Conversion rule information extraction unit, 20 ... Content distribution server, 30 ... User terminal, 100 ... Recording medium, 101 ... Program area, 102 ... Structured document conversion program 102a... Acquisition mode Yuru, 102b · · · conversion rule information generation module, 102c · · · conversion module, 102d · · · output module.

Claims (12)

Acquisition means for acquiring distribution rule information in which a multimedia content distribution rule is described and including information for identifying the multimedia content, and status information in which a situation of the receiving side of the multimedia content is described;
Based on the distribution rule information and status information acquired by the acquisition unit, a distribution rules contained in the distribution rule information, and evaluated in the context of the receiving side included in the status information, information related to the multimedia content, Based on the result of the evaluation, the video scene which is a negative evaluation is deleted or changed from the structured document described together with the reproduction start time or the reproduction time for each video scene as an object, and a positive evaluation is performed. Generating means for generating conversion rule information describing a conversion rule for copying a video scene ,
Conversion means for converting the structured document based on the conversion rule information generated by the generation means;
A structured document conversion apparatus comprising: The generating means includes
A first extraction means for extracting, from the distribution rule information, an evaluation target that is a condition related to the situation on the receiving side, which is included in the distribution rule, and that deletes or changes the object;
Second extraction means for extracting the receiving-side situation corresponding to the evaluation object from the situation information based on the evaluation object extracted by the first extraction means;
An evaluation unit that evaluates whether or not the condition of the reception side extracted by the second extraction unit satisfies the condition, and as a result of the evaluation performed by the evaluation unit, 2. The structured document conversion apparatus according to claim 1, wherein when the situation satisfies the condition, the conversion rule information describing the conversion rule for deleting or changing the object is generated.   3. The structured document according to claim 1, wherein the distribution rule further includes information for identifying a target user to which the distribution rule is applied and information for identifying an operation to be performed on the content. Conversion device. The structured document conversion apparatus includes conversion rule information generated by the generation unit in correspondence with the evaluation object extracted by the first extraction unit and the reception-side situation extracted by the second extraction unit. And further storing means for storing
The generation unit is configured to evaluate the evaluation from the conversion rule information stored in the storage unit based on the evaluation target extracted by the first extraction unit and the reception-side situation extracted by the second extraction unit. When the conversion rule information is extracted by the third extraction unit, the conversion unit is configured to include a third extraction unit that extracts the conversion rule information corresponding to the target and the situation on the receiving side. , Generating the conversion rule information based on the result of the evaluation performed by the evaluation means,
3. The conversion unit according to claim 2, wherein when the conversion rule information is extracted by the third extraction unit, the conversion unit converts the structured document based on the extracted conversion rule information. Structured document conversion device. The structured document conversion apparatus receives the distribution rule information including information for identifying the multimedia content as well as the distribution rule information including information for identifying the multimedia content and the situation information describing the situation on the receiving side of the multimedia content. An acquisition step that the communication device has,
Based on the obtained distribution rule information and status information in the acquiring step, the distribution rules contained in the distribution rule information, and evaluated in the context of the receiving side included in the status information, information related to the multimedia content, Based on the result of the evaluation, the video scene which is a negative evaluation is deleted or changed from the structured document described together with the reproduction start time or the reproduction time for each video scene as an object, and a positive evaluation is performed. A generation step in which a CPU included in the structured document conversion apparatus generates conversion rule information describing a conversion rule for copying a video scene ,
A conversion step in which the CPU converts the structured document based on the conversion rule information generated in the generation step;
A structured document conversion method comprising: The generating step includes
A first extraction step in which the CPU extracts, from the distribution rule information, an evaluation target that is a condition related to the situation on the receiving side, which is included in the distribution rule, and that deletes or changes the object;
A second extraction step in which the CPU extracts the situation on the receiving side corresponding to the evaluation object from the situation information based on the evaluation object extracted in the first extraction step;
An evaluation step in which the CPU performs an evaluation as to whether or not the receiving-side situation extracted in the second extraction step satisfies the condition. As a result of the evaluation performed in the evaluation step, the 6. The structured document conversion method according to claim 5, wherein the conversion rule information describing the conversion rule for deleting or changing the object is generated when the condition on the receiving side satisfies the condition.   7. The structured document according to claim 5, wherein the distribution rule further includes information for identifying a target user to which the distribution rule is applied and information for identifying an operation to be performed on the content. Conversion method. In the structured document conversion method, the conversion rule information generated in the generation step corresponding to the evaluation object extracted in the first extraction step and the situation on the receiving side extracted in the second extraction step. A storage step of storing the storage device,
Based on the evaluation object extracted in the first extraction step and the situation on the receiving side extracted in the second extraction step, the generation step uses the conversion rule information stored in the storage step to calculate the evaluation The CPU includes a third extraction step in which the CPU extracts conversion rule information corresponding to the target and the receiving side situation, and the generation step does not extract the conversion rule information in the third extraction step. The CPU generates the conversion rule information based on the result of the evaluation performed in the evaluation step,
In the conversion step, when the conversion rule information is extracted in the third extraction step, the CPU converts the structured document based on the extracted conversion rule information. Item 7. The structured document conversion method according to Item 6. Computer
Acquisition means for acquiring distribution rule information in which a multimedia content distribution rule is described and including information for identifying the multimedia content, and status information in which a situation of the receiving side of the multimedia content is described;
Based on the distribution rule information and status information acquired by the acquisition unit, a distribution rules contained in the distribution rule information, and evaluated in the context of the receiving side included in the status information, information related to the multimedia content, Based on the result of the evaluation, the video scene which is a negative evaluation is deleted or changed from the structured document described together with the reproduction start time or the reproduction time for each video scene as an object, and a positive evaluation is performed. Generating means for generating conversion rule information describing a conversion rule for copying a video scene ,
A structured document conversion program for functioning as conversion means for converting the structured document based on conversion rule information generated by the generation means. The generating means includes
A first extraction means for extracting, from the distribution rule information, an evaluation target that is a condition related to the situation on the receiving side, which is included in the distribution rule, and that deletes or changes the object;
Second extraction means for extracting the receiving-side situation corresponding to the evaluation object from the situation information based on the evaluation object extracted by the first extraction means;
An evaluation unit that evaluates whether or not the condition of the reception side extracted by the second extraction unit satisfies the condition, and as a result of the evaluation performed by the evaluation unit, 10. The structured document conversion program according to claim 9, wherein the conversion rule information describing the conversion rule for deleting or changing the object is generated when a situation satisfies the condition.   11. The structured document according to claim 9, wherein the distribution rule further includes information for identifying a target user to which the distribution rule is applied, and information for identifying an operation to be performed on the content. Conversion program. The structured document conversion program includes the conversion rule information generated by the generation unit in correspondence with the evaluation object extracted by the first extraction unit and the reception-side situation extracted by the second extraction unit. And further storing means for storing
The generation unit is configured to evaluate the evaluation from the conversion rule information stored in the storage unit based on the evaluation target extracted by the first extraction unit and the reception-side situation extracted by the second extraction unit. When the conversion rule information is extracted by the third extraction unit, the conversion unit is configured to include a third extraction unit that extracts the conversion rule information corresponding to the target and the situation on the receiving side. , Generating the conversion rule information based on the result of the evaluation performed by the evaluation means,
11. The conversion means, when the conversion rule information is extracted by the third extraction means, converts the structured document based on the extracted conversion rule information. Structured document conversion program.

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