JP6107419B2 - Display control method, display control program, and display control apparatus - Google Patents

Description

  The present invention relates to a technique for controlling data visualization.

  There is a standard called Resource Description Framework (RDF) as a framework for describing “resources” existing on the web. The RDF metadata model is described in a method called triple. In other words, in the RDF document of a certain resource, the relationship information regarding the resource to be described is expressed by the subject, predicate, and object. The subject is the resource to be described. The predicate indicates the characteristics of the subject and the relationship between the subject and the object. The object is information that is related to the subject or information that is a predicate value.

  Conventionally, there is a technique for visualizing an RDF document described in triples using a graph in graph theory (Non-patent Documents 1 and 2). In the graph, the subject and the object in the RDF document are handled as nodes, and the subject node and the object node are displayed in an aspect connected by an edge.

W3C Recommendation, [Online], February 10, 2004, [May 10, 2013], Internet (http://www.w3.org/TR/rdf-concepts/) W3C Recommendation, [Online], February 10, 2004, [May 10, 2013], Internet (http://www.w3.org/TR/2004/REC-rdf-primer-20040210/)

  In a document described in RDF, RDF site summary (RSS) derived from RDF, and Turtle or N-Triple, a plurality of objects are described for the subject. At this time, the conventional graph theory is a method in which a subject node and an object node are connected by an edge, and therefore, it is not always visualized by a graph that is easy for the user to grasp.

  Accordingly, in one aspect, an object of the present invention is to create a graph that is easy for a user to grasp when displaying a document described in triple format as a graph.

  In order to solve the above problem, in one embodiment, a computer includes: second data related to the first data; and third data related to the first data and having an attribute defined. When the described document is acquired and the attribute is a specific attribute, the first node related to the first data is connected to the third node related to the third data, and the second node A process of generating display data in which the second node relating to data and the third node are connected is executed.

  According to one aspect of the present invention, it is possible to create a graph that is easy for the user to grasp when displaying a document written in triple format as a graph.

FIG. 1 is a diagram illustrating a description example of an RDF document. 2A and 2B are diagrams illustrating display examples of RDF documents. FIG. 3 is a functional block diagram of the display control apparatus. FIG. 4 is a diagram illustrating an example of a tree structure. FIG. 5 is a diagram for explaining a display example according to the present embodiment. FIG. 6 is a flowchart (part 1) of the display control process. FIG. 7 is a flowchart (part 2) of the display control process. FIG. 8 is a flowchart (part 3) of the display control process. FIG. 9 is a diagram (No. 1) for explaining another display example according to the embodiment. FIG. 10 is a diagram (No. 2) for explaining another display example according to the embodiment. FIG. 11 is a diagram (No. 3) for explaining another display example according to the embodiment. FIG. 12 is a hardware configuration example of the display control apparatus.

  In the following embodiment, an RDF document is exemplarily used as a processing target. However, the present invention can be applied to any document described in triple. For example, the present invention can be applied to documents described in other standards such as RDF site summary (RSS) and Turtle and N-Triple.

  The technology disclosed in the following embodiments analyzes a document to be processed and generates display data for performing graph display. The display data differs from the conventional graph display in which the subject and the object are connected by an edge in the following points. First, if an object with a specific attribute is included in multiple objects described in a document, the subject node and the object node with the specific attribute are connected, and the object with the specific attribute And a node of an object other than the object of a specific attribute are connected.

  Detailed examples of the present invention will be described below. Note that the following embodiments can be appropriately combined within a range in which the contents of processing do not contradict each other. Embodiments will be described below with reference to the drawings.

  FIG. 1 is a diagram illustrating a description example of an RDF document. In a document described in triple, a document following a predetermined first character string is the subject. For example, in the RDF document 1 as shown in FIG. 1, the information following the first character string “rdf: about =” becomes the subject.

  That is, data 2 “http: // localhost / data / XX meeting” is the subject of the resource indicated by the RDF document 1. The data handled as the subject in the RDF document 1 is Uniform Resource Identifier (URI). The URI is an identifier that can uniquely specify a resource in the web space.

  Next, various predicates are used in a document described in triples. For example, in the RDF document 1, a character string in which an identifier called a vocabulary and a subsequent tag are enclosed by “<> (or <only)” is treated as a predicate. In the example of FIG. 1, the predicates are, for example, a character string 31, a character string 32, a character string 33, and the like. The character string 31, the character string 32, and the character string 33 are examples when “dc” is used as the vocabulary.

  For example, for the character string 31 “dc: title”, in the vocabulary “dc”, the meaning of the predicate having the element “title” is interpreted. Actually, in the vocabulary “dc” in the character string 31 “dc: title”, the element “title” indicates that the subsequent object is the title of the subject. In addition, the character string 32 “dc: date” indicates that the object following the element “date” is the subject date in the vocabulary “dc”. Further, the character string 33 “dc: relation” indicates that in the vocabulary “dc”, the object following the element “relation” is a value related to the subject.

  There are a plurality of types of vocabulary, and each vocabulary also has a plurality of elements. Therefore, when an RDF document is created, a vocabulary for indicating a predicate is appropriately set, and elements are also determined according to each vocabulary. Note that a plurality of types of vocabulary may be used in one RDF document. Also in the example of FIG. 1, it can be seen that a vocabulary of “term” is used in addition to the vocabulary “dc”.

  Next, data described after the predicate is treated as an object. In the example of FIG. 1, the object is, for example, data 41, data 42, data 43, or the like. For example, it is described in the RDF document 1 that the subject data 2 “http: // localhost / data / XX meeting” has the object data 41 “XX meeting” as the title. In addition, it is described that the subject data 2 “http: // localhost / data / XX meeting” has the data 42 “2012/08/23” as the object as the date. Further, it is described that the subject data 2 “http: // localhost / data / XX meeting” has the object data 43 “http: // localhost / resource / material 1” as an associated value. ing.

  Thus, one subject is described in one RDF document, and a plurality of data related to the subject are described as objects. Some of the objects are described as text information, such as data 41 and data 42, while others are described URIs of other related resources, such as data 43.

  Next, the graph display of the RDF document shown in FIG. 1 will be described. 2A and 2B are diagrams illustrating display examples of RDF documents. 2A and 2B are examples in which the RDF document 1 of FIG. 1 is graphed by graph theory, and is a display form that is often used particularly in the display of Linked Data.

  Here, a new data sharing method called Linked Data will be described. Linked Data is a collection of data that takes into account the relationship between a plurality of resources when there are a plurality of resources described in RDF. That is, Linked Data is a resource in which related resources are linked by hyperlinks.

  Therefore, when an RDF document is displayed as Linked Data, the resource X described as the subject and the resource Y described as the object as related to the resource X are often connected at the edge. . At this time, conventionally, among a plurality of objects, objects indicating other resources are often displayed. This is to avoid complicated display and complicated display for the user when all of the plurality of objects are displayed.

  For example, FIG. 2A shows a node of a resource “XX meeting” as a subject and nodes of “material 1”, “material 2”, “minutes a”, “meeting room 1” described as other resources among objects. And connected. That is, FIG. 2A is an example in which objects other than objects indicating other resources among objects described in the RDF document 1 are not displayed. In FIG. 2A, the character string displayed at each node is a character string designated as the subject title in the RDF document of the resource (URI) corresponding to each node.

  On the other hand, even if it is an object other than an object indicating another resource, it can be appropriately set as a display target. For example, even if an object does not describe other resources, it can be displayed in a manner in which the subject and the object are connected by an edge, as is the case with other resources, by setting appropriately. . Further, the object node described as another resource and the subject node are connected in the same manner as in FIG. 2A, and the object node of the date described in the text format is also connected to the subject node. Display is performed.

  FIG. 2B is an example in which objects described as other resources are displayed as nodes, and other objects are described in the subject node. For example, the object indicating the date is displayed on the subject node.

  In addition, in the graph display of Linked Data, RDF documents whose subject is each node (“Document 1”, “Document 2”, “Meeting a”, “Meeting Room 1”, etc.) are further acquired, and these are similarly applied. By analyzing and displaying, it is possible to visualize a wide range of relationships among resources that exist in large quantities. Also, the user can browse various information described in the RDF document of the clicked resource by clicking each node displayed in the graph.

  As shown in FIGS. 2A and 2B, the object node of another resource related to the resource (subject) related to a certain RDF document is to be connected to the subject node. Therefore, for example, as shown in FIG. 2A, the display is performed in such a manner that it is difficult for the user to grasp at a glance which date the object node “document 1” relates to. Further, the location information is also displayed in a manner in which it is difficult to grasp where a plurality of meetings are performed and which materials and minutes are associated with each meeting.

  Therefore, the technology disclosed in the present embodiment, as shown below, grasps the relationship of each resource for the user by controlling the display position for the object of a predetermined attribute such as date and place. Realize an easy-to-use display.

  FIG. 3 is a functional block diagram of the display control apparatus. The display control device 10 is a computer that executes display control according to the present embodiment. The display control device 10 communicates with other computers such as a management device and a terminal device. For example, the management device manages RDF documents for each resource. The management device stores the RDF document created by the administrator.

  The terminal device requests display data from the display control device 10. In the present embodiment, it is assumed that the terminal device can acquire display data of an RDF document related to the search result from the display control device 10 when making a resource search request to the display control device 10.

  In response to the search request from the terminal device, the display control device 10 acquires one or more RDF documents from the management device. Then, the display control apparatus 10 generates display data according to the present embodiment by analyzing the RDF document acquired from the management apparatus. The display control device 10 transmits the generated display data to the terminal device. The display data may be displayed on a display included in the display control device 10.

  The display control device 10 includes a communication unit 11, a control unit 12, and a storage unit 15. The communication unit 11 is a processing unit that communicates with other devices. For example, the communication unit 11 receives a search request from the terminal device. The search request may be information including a search keyword or information including a URI of a specific resource. In addition, the communication unit 11 acquires an RDF document related to the search request from the management apparatus.

  The control unit 12 is a processing unit that controls the display control device 10. For example, the control unit 12 performs a search based on the search request. Note that a form in which a search is requested to another computer and a search result is acquired may be used. The control unit 12 includes an analysis unit 13 and a generation unit 14.

  The analysis unit 13 is a processing unit that analyzes the acquired RDF document. After acquiring the document, the analysis unit 13 extracts the first data as the subject, the second data related to the first data, and the third data related to the first data. . Note that the second data and the third data are handled as objects in the RDF document. The second data is a URI of another resource, and the third data is information having specific attributes such as date and place. For example, the analysis unit 13 analyzes an RDF document and generates a tree structure. Information about the generated tree structure is temporarily stored in the storage unit 15.

  The generation unit 14 is a processing unit that generates display data. When the attribute of the third data is a specific attribute, the generation unit 14 connects the first node related to the first data and the third node related to the third data, and also relates to the second data Display data in which the second node and the third node are connected is generated.

  For example, the generation unit 14 generates display data by determining whether or not each node is displayed in the tree structure and the display position using information about the tree structure. For example, if the second data is other resource information and the third data is date information, the subject node and date node are connected, and the date node and other resource information are connected. Generate display data with connected nodes.

  The storage unit 15 stores various information necessary for display control processing. For example, information on the acquired RDF document and tree structure is temporarily stored.

  FIG. 4 is a diagram illustrating an example of a tree structure. The tree structure is generated by the analysis unit 13. A conventional method is applied to the generation of the tree structure. FIG. 4 shows an example in which the RDF document 1 shown in FIG. 1 is shown in a tree structure.

  In the example of FIG. 1, blocks from “<rdf: Description” to “</ rdf: Description>” are included in the blocks from “<rdf: RDF” to “</ rdf: RDF>”. Furthermore, blocks from “<rdf: Description” to “</ rdf: Description>” include blocks from “<dc: title>” to “</ dc: title>” and the first “< blocks from “term: meeting>” to the first “</ term: meeting>”, and blocks from the second “<term: meeting>” to the second “</ term: meeting>” It is included. These blocks also include a plurality of blocks.

  The tree diagram shown in FIG. 4 shows these blocks in order from the upper hierarchy. For example, FIG. 4 shows that the RDF document 1 includes blocks from “<dc: title>” to “</ dc: title>” and the first “<term: meeting>” in the same hierarchy. It is described that a block from the first “</ term: meeting>” and a block from the second “<term: meeting>” to the second “</ term: meeting>” are described. Show.

  FIG. 5 is a diagram for explaining a display example according to the present embodiment. In the example shown in FIG. 5, the display position is controlled for the node corresponding to the date-related object. However, not only the date, but also the display position of the node corresponding to the object related to the place or the like may be controlled.

  The generation unit 14 connects the node 201 or 202 of the object indicating a specific attribute such as a date with the node 101 of the subject. Further, the generation unit 14 connects the object node 301, the node 302, the node 303, and the node 304 described in the URI of the other resource to the object node 201 described in the same block. Similarly, the generation unit 14 connects the object node 305, the node 306, the node 307, and the node 308 described in the URI of another resource to the object node 202 described in the same block.

  That is, in FIG. 1, the data from the first “<term: meeting>” to the first “</ term: meeting>” has the purpose of data 42 “2012/8/23” indicating the date. The word “URI” and the object 43 ““ http: // localhost / resource / document 1 ”/>” indicate the URI and the first “</ term: meeting>” to the first “</ term: It is described in blocks up to “meeting>”. At this time, the node 301 related to the data 43 is connected not to the node 101 but to the node 201. According to the display in FIG. 5, the user can grasp which date is related to the subject as well as which date is related to the subject.

  Hereinafter, the display control process according to the present embodiment will be described. 6, 7 and 8 are flowcharts of the display control process. The communication unit 11 receives a search request from the terminal device (Op. 1). Next, the communication unit 11 acquires an RDF document related to the search request from the management apparatus under the control of the control unit 12 (Op. 3). Note that conventional techniques are used for searching for RDF documents.

  Then, the analysis unit 13 analyzes the RDF document (Op. 5). For example, the analysis unit 13 generates information regarding the tree structure. From here, the generation unit 14 performs processing for each node in the tree structure. Hereinafter, nodes in the tree structure are referred to as tree structure nodes, and nodes in the display data are referred to as display nodes.

  The generation unit 14 first determines whether or not an unprocessed node exists in the tree structure node (Op. 7). As long as there is an unprocessed node, the generation unit 14 performs the process described later. When there is no longer an unprocessed node (Op. 7 No), the generation unit 14 outputs the generated display data to the terminal device (Op. 17). ). Then, the display control device 10 ends the display control process.

  On the other hand, when there is an unprocessed node (Op. 7 Yes), the generation unit 14 sets a processing target among the unprocessed tree structure nodes (Op. 9). In this embodiment, the generation unit 14 sequentially sets processing targets in the same order as the depth-first search from unprocessed tree structure nodes. In the example of FIG. 4, the tree structure node existing above and described on the left is targeted for processing earlier.

  Next, the generation unit 14 determines whether the tree structure node to be processed is a node corresponding to the subject in the RDF document (Op. 11). For example, when the tree structure node includes the first character string in the tag attribute, the generation unit 14 determines that the tree structure node to be processed is a node corresponding to the subject. The first character string is “rdf: about” indicating the subject in the RDF document.

  For example, in the example of FIG. 4, when the tree structure node to be processed is “rdf: Description”, “rdf: about” is described in the tag attribute as shown in FIG. Is determined to be a node corresponding to the subject.

  When the tree structure node to be processed is the subject node (Op. 11 Yes), the generation unit 14 sets the processing target as the first display node (Op. 13). The first display node is a display node indicating the subject. And OP. Return to 7. When there is an unprocessed node, another tree structure node is a processing target. For example, when the processing target is determined in the same order as in the depth-first search, the tree structure node “dc: title” is the processing target after the tree structure node “rdf: Description”.

  On the other hand, when the tree structure node to be processed is not the subject node in the RDF document (Op. 11 No), the generation unit 14 determines whether the first display node has been set (Op. 15). For example, in the example of FIG. 4, when the processing target is the tree structure node “rdf: RDF”, the first display node indicating the subject is not set. 15 determines “No”. On the other hand, when the processing target is the tree structure node “dc: title”, the first display node is set when the tree structure node “rdf: Description” is the processing target in the past. 14 is Op. 15 determines “Yes”.

  When the first display node has not been set (Op. 15 No), the generation unit 14 selects the Op. Return to 7. On the other hand, when the first display node has been set (Op. 15 Yes), the generation unit 14 determines whether the processing target node is a predicate node for associating other resources (Op. 15). 21). For example, if the tag attribute includes the second character string, the tree structure node to be processed is determined to be a predicate node for associating other resources. The second character string is “rdf: resource” that associates other resources in the RDF document.

  When the processing target node is not a predicate node for associating other resources (Op.21 No), the generation unit 14 determines whether the processing target tree structure node is a predicate node indicating a title (Op.23). . For example, when the vocabulary is “dc”, it is determined whether the tree structure node to be processed is a tree structure node including the element “title”.

  When the processing target is the tree structure node “dc: title”, the generation unit 14 selects Op. 23, “Yes” is determined. On the other hand, when the processing target is the tree structure node “XX meeting”, the generation unit 14 selects Op. In step 23, “No” is determined. If the predicate node indicates a title (Op. 23 Yes), the generation unit 14 sets the text information of the child node for the processing-target tree structure node in the label of the first display node (Op. 25). ). And Op. Return to 7. For example, when the processing target is the tree structure node “dc: title”, the text information “XX meeting” of the child node is set as the label of the first display node. On the other hand, when the processing target is not a predicate node indicating a title (Op. 23 No), the operation is directly performed in Op. Return to 7.

  When the processing target tree structure node is a predicate node for associating other resources (Op. 21 Yes), the generation unit 14 sets the object for the processing target tree structure node to the second display node. Set (Op.31). Since the processing target is a predicate node, the object for the predicate exists in the child node and the tag attribute. Furthermore, Op. Since the determination of “Yes” is made at 21, the object is a URI.

  Here, in the display example of FIG. 5, the place-related object is also handled as the second display node by not setting the place as a specific attribute. However, if the location is also specified as a specific attribute, the display position needs to be controlled for the object node related to the location. As shown in FIG. 1, even when the predicate indicates a location (dbpdeia-owl: location), the tag attribute may include the second character string “rdf: resource”. In this case, regarding the place, even if the tag attribute includes the second character string, it may be determined that the child node to be processed is not the second display node. A display example in the case of controlling the display position for not only the date but also the place will be described with reference to FIG.

  Next, the generation unit 14 determines whether or not the tree structure node to be processed satisfies the condition “predicate node indicating date or place and no sibling node exists” (Op.32). If the condition is satisfied (Op. 32 Yes), Op. Proceed to 45.

  On the other hand, when the condition is not satisfied (Op. 32 No), the generation unit 14 determines whether a predicate node indicating a specific attribute exists in the sibling node for the tree structure node to be processed (Op. 33). Specifically, the generation unit 14 determines whether a sibling node has a predicate node for indicating a date or a location. For example, the tree structure node “dc: date” and the tree structure node “dc: relation” correspond to a sibling node relationship.

  When the predicate node indicating the specific attribute exists in the sibling node (Op. 33 Yes), the generation unit 14 sets the object of the sibling node indicating the specific attribute as the third display node (Op. 35). ). For example, a child node for a sibling node indicating a specific attribute is an object node for a predicate of the specific attribute. In this way, an object related to a specific attribute is set in the third display node.

  For example, when the processing target is a tree structure node “dc: relation”, a predicate node “dc: date” indicating a specific attribute exists as a sibling node. Therefore, the generation unit 14 sets the child node “2012/08/23” of the sibling node “dc: date” as the third display node. At this time, when not only the date but also the location is specified as the specific attribute, a predicate node “dbpdia-owl: location” indicating the specific attribute exists in the sibling node. Therefore, the generation unit 14 also sets the object “http: // localhost / resource / conference room 1” of the sibling node “dbpdeia-owl: location” as the third display node.

  Next, the generation unit 14 determines whether the sibling node is a predicate node for further associating other resources (Op. 37). Specifically, Op. Similarly to 31, when the tag attribute includes the second character string, the generation unit 14 determines that the tree structure node to be processed is a predicate node for associating other resources. The second character string is “rdf: resource” that associates other resources in the RDF document.

  For example, when the processing target is the tree structure node “dc: relation”, “rdf: resource” is included in the attribute of the sibling node “dbpdeia-owl: location”. Therefore, the generation unit 14 uses Op. In 37, “Yes” is determined. On the other hand, the attribute of the sibling node “dc: date” does not include “rdf: resource”. Therefore, the generation unit 14 uses Op. In 37, “No” is determined. Thus, Op. 35, when a plurality of third display nodes are set, the generation unit 14 sets Op. The process of 37 is executed.

  Thus, Op. In 37, the generation unit 14 determines whether or not the predicate indicates a date or a place, and the place or date information is described by a URI. If the date or location is described in the URI of another resource, the following Op. 39 is executed.

  When the sibling node is a predicate node for associating other resources (Op. 37 Yes), the generation unit 14 acquires the label of the third display node from the title information of the resource that is the link destination ( Op. 39). When the sibling node is not a predicate node for associating other resources (Op. 37 No), the text information of the child node of the sibling node is set in the label of the third display node (Op. 38). That is, since the child node for the predicate node indicating the specific attribute is text information (object) indicating the value of the specific attribute, the text information is set as the label of the third display node.

  Then, the generation unit 14 connects the first display node and the third display node (Op. 41). Subsequently, the generation unit 14 connects the second display node and the third display node (Op. 43). Further, the third display node having the same label is handled as one node.

  When there are a plurality of third display nodes, the first display node is connected to one of the plurality of third display nodes. Then, the third display node is connected to another third display node. The second display node is connected to the other third display node. For example, display data for displaying as shown in FIG. 41 and Op. At 43.

  On the other hand, Op. When the determination of “Yes” is made in 32 and when there is no predicate node indicating a specific attribute in the sibling node (Op. 33 No), the first display node and the second display node are connected. (Op. 45). That is, the display node for the subject and the display node for the object related to other resources are connected. Further, when the subject has no object (URI) other than the specific attribute (date or place), even if the object has the specific attribute, the graph is displayed in which the object and the subject are connected. .

  Op. 43 or after Op. After 45, the generation unit 14 acquires the label of the second display node from the title information of the resource that is the link destination (Op. 47). As described above, Op. 41 and Op. 43, or Op. In 45, display data defining the connection between the display nodes is generated. Then, the generation unit 14 returns to Op, 7.

  FIG. 9 is a diagram (part 1) for explaining another display example. FIG. 9 is a display example when a date and a location are specified as specific attributes as described above. That is, unlike FIG. 5, not only the date and time but also the display position of the object node relating to the place is controlled.

  Since a node indicating date and time and a node indicating location are set as the third display node, a node of an object other than the date or location and the object indicating another resource is a node or location indicating the date and time. Is connected to a node indicating

  FIG. 10 is a diagram (No. 2) for explaining another display example. The display control apparatus 10 acquires another RDF document whose subject is another resource defined as an object in a certain RDF document. Then, by further generating display data based on other RDF documents, it is possible to visualize the spread of the relevance of each resource.

  For example, as shown in a region 400 in FIG. 10, it is visualized that there are other resources “reference book A” and “reference book B” related to “document 1”. Further, other resources related to “reference book A” are also visualized. That is, the display control apparatus 10 sequentially acquires RDF documents of other resources associated with a certain RDF document from the management apparatus, and executes display control processing for each RDF document as a processing target.

  FIG. 11 is a diagram (No. 3) for explaining another display property. As shown in FIG. 11, when nodes indicating predetermined attributes such as date or place have the same value, they may be displayed together as one node. In other words, when “Meeting Room 1” indicating the location is associated with both the 2012/08/23 meeting and the 2012/08/30 meeting, as shown in FIG. One node “Conference Room 1” may be displayed.

[Hardware configuration example]
Next, FIG. 12 is a hardware configuration example of the display control apparatus according to the present invention. The display control apparatus 10 is realized by the computer 1000.

  The computer 1000 executes display control processing according to each embodiment, and functions as a display control device according to each embodiment. A computer 1000 includes a central processing unit (CPU) 1001, a read only memory (ROM) 1002, a random access memory (RAM) 1003, a communication device 1004, a hard disk drive (HDD) 1005, an input device 1006, a display device 1007, and a medium reading device 1007. 1008, and each unit is connected to each other via a bus 1009. Data can be transmitted and received with each other under the control of the CPU 1001.

  The display control program in which the display control process shown in the flowchart is described is recorded on a recording medium readable by the computer 1000. Examples of the recording medium readable by the computer 1000 include a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory. Examples of the magnetic recording device include an HDD, a flexible disk (FD), and a magnetic tape (MT).

  Optical discs include Digital Versatile Disc (DVD), DVD-RAM, Compact Disc-Read Only Memory (CD-ROM), and Compact Disc-Recordable / Rewritable (CD-R / RW). Magneto-optical discs (MO) are examples of magneto-optical recording media. In the case where the display control program is distributed, for example, a portable recording medium such as a DVD or a CD-ROM in which the display control program is recorded may be sold.

  Then, the medium reading device 1008 of the computer 1000 that executes the display control program in which the display control process according to each embodiment is described reads the program from the recording medium on which the display control program is recorded. The CPU 1001 stores the read program in the HDD 1005, the ROM 1002, or the RAM 1003.

  A CPU 1001 is a central processing unit that controls operation of the entire display control apparatus according to each embodiment. Then, the CPU 1001 reads out the display control program related to each embodiment from the HDD 1005 and executes it. The CPU 1001 functions as the control unit 12. As described above, the program may be stored in the ROM 1002 or the RAM 1003 accessible to the CPU 1001.

  Next, the communication device 1004 functions as the communication unit 11 in each device under the control of the CPU 1001. The HDD 1005 functions as the storage unit 15 under the management of the CPU 1001. Similar to the program, information necessary for display control processing may be stored in the ROM 1002 or the RAM 1003 accessible to the CPU 1001. Further, various information generated in the course of processing is stored in the RAM 1003, for example. That is, the RAM 1003 may function as the storage unit 15.

  The input device 1006 accepts various inputs. The input device 1006 is, for example, a keyboard or a mouse. The display device 1007 displays various information. The display device 1007 is a display, for example.

DESCRIPTION OF SYMBOLS 10 Display control apparatus 11 Communication part 12 Control part 13 Analysis part 14 Generation part 15 Storage part 1000 Computer 1001 CPU
1002 ROM
1003 RAM
1004 Communication device 1005 HDD
1006 Input device 1007 Display device 1008 Medium reader 1009 Bus

Claims (6)

Computer
A document describing a plurality of nodes in the tree structure and associations between the nodes , wherein the second data defines the association with the first data, and the first data in the same hierarchy as the second data get the third the document data and is described in association with the data of the defined attributes with the defined,
When the attribute defined in the third data in the document is a specific attribute, a first node indicating the first data and a third indicating the third data according to the description of the document And generating display data in which the second node indicating the second data and the third node are connected to each other .
A display control method characterized by executing processing. The computer
If the attribute defined in the third data in the document is not a specific attribute, generating display data that connects the first node and the second node according to the description of the document ;
The display control method according to claim 1. The document, subject, predicate, documents der where the object written in an identifiable format is,
Said first data, Ri Ah with data corresponding to the subject,
The second data and the third data are data corresponding to the object,
The object is discriminated as one of the second data and the third data based on a previous description word .
The display control method according to claim 1, wherein the display control method is a display control method. The specific attribute is at least one of date or location ,
The display control method according to any one of claims 1 to 3, wherein: On the computer,
A document describing a plurality of nodes in the tree structure and associations between the nodes , wherein the second data defines the association with the first data, and the first data in the same hierarchy as the second data get the third the document data and is described in association with the data of the defined attributes with the defined,
When the attribute defined in the third data in the document is a specific attribute, a first node indicating the first data and a third indicating the third data according to the description of the document And generating display data in which the second node indicating the second data and the third node are connected to each other .
A display control program for executing processing. A document describing a plurality of nodes in the tree structure and associations between the nodes , wherein the second data defines the association with the first data, and the first data in the same hierarchy as the second data a communication unit and the third data to obtain the described the document associated with the data attribute with is defined is defined in,
When the attribute defined in the third data in the document is a specific attribute, a first node indicating the first data and a third indicating the third data according to the description of the document A control unit that generates display data in which the second node indicating the second data and the third node are connected to each other .
A display control device comprising:

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