JP2017068573A - Information processing device, information processing system, information processing method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing device, an information processing system, an information processing method and a program which can easily grasp a relation between commercial materials.SOLUTION: A parameter setting part sets a parameter showing the strength of a relation between two kinds of commercial materials about each of sets composed of two kinds of commercial materials, a position calculation part calculates respective positions of nodes corresponding to the commercial materials so that a distance corresponding to the strength of the relation shown by the parameter between the commercial materials of a set relevant to the parameter, and a display data generation part generates data representing edges connecting respective positions corresponding to the commercial materials of the set.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information processing apparatus, an information processing system, an information processing method, and a program, and more particularly to an information processing system for visualizing sales trends of merchandise.

  A graph may be used as a method for visualizing the sales correlation between a plurality of products. A graph is a figure formed by a plurality of nodes and edges connecting the nodes. The graph may mean data representing the figure. Each product is associated with a node. A node is a graphic representing a certain thing or data representing the graphic. Nodes are sometimes referred to as nodes or nodes. The edge represents the presence / absence of the relationship between the nodes and the strength thereof. In visualization, a dynamic model can be used to dynamically express a correlation between relatively complicated products. For example, a graph in which nodes are arranged closer to a product having a higher correlation shows the correlation. Therefore, various graph display tools that employ a dynamic model have been proposed.

  For example, the information processing method described in Patent Document 1 acquires a display position output to a display device for each of a plurality of mutually related nodes, and a dynamic model in which inertia does not work for each of the plurality of nodes. In accordance with the calculation processing for calculating a movement vector corresponding to the sum of all other nodes of the force applied in relation to the distance related to the display position with other nodes, and the movement calculated for each of the plurality of nodes Display of one of a plurality of nodes while repeating the acquisition process, the calculation process, and the movement process, or before executing the acquisition process, the calculation process, and the movement process. Receiving an instruction according to a user operation to change the position, and changing the display position output on the display device of the node in accordance with the instruction.

JP 2014-191757 A

  However, with these graph display tools, it may be difficult to grasp what each node represents. For example, when the number of nodes is large, it may not be possible to immediately detect where a particular node is located. In addition, since the edges are complicated, it may be difficult to grasp the relationship between a specific node and other nodes. For this reason, there is a problem that it is difficult to grasp the relationship between the products because it is difficult to attract the user's interest.

  The present invention has been made in view of the above points, and provides an information processing apparatus, an information processing system, an information processing method, and a program capable of easily grasping relationships between products, for example, sales trends.

  The present invention has been made to solve the above problems, and one aspect of the present invention shows the strength of the relationship between the two types of products for each of the sets of two types of products. The position of each node corresponding to the product is calculated so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the parameter setting unit that sets the parameter and the product of the set related to the parameter. An information processing apparatus comprising: a position calculation unit; and a display data generation unit that generates data representing an edge connecting the positions of the nodes corresponding to the set of merchandise.

  According to the present invention, there are provided an information processing apparatus, an information processing system, an information processing method, and a program capable of easily grasping a relationship between products.

It is a block diagram which shows the structural example of the information processing system which concerns on 1st Embodiment. It is a figure which shows the example of sales data. It is a figure which shows the example of simultaneous sales data. It is a block diagram which shows the structure of the web server which concerns on 1st Embodiment. It is a figure which shows the example of the data according to edge. It is a figure which shows the example of data classified by node. It is a figure which shows the example of an icon. It is a block diagram which shows the structure of the terminal device which concerns on 1st Embodiment. It is a figure for demonstrating the example of a dynamic model. It is a flowchart which shows the information processing which the terminal device which concerns on 1st Embodiment performs. It is a flowchart which shows the information processing which the information processing system which concerns on 1st Embodiment performs. It is a figure which shows the example of a display of the image which concerns on 1st Embodiment. It is a figure which shows the example of a display of the image which concerns on 2nd Embodiment. It is a figure which shows the example of a display of the image which concerns on 3rd Embodiment. It is a figure which shows the example of a display of the image which concerns on the modification of each embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described. FIG. 1 is a block diagram illustrating a configuration example of an information processing system 1 according to the present embodiment.
The information processing system 1 includes a registration device 10, a log collection / analysis server 20, a web server 30, and a terminal device 40. The registration device 10, the log collection / analysis server 20, the web server 30, and the terminal device 40 can transmit / receive various data to / from each other via the network NW. FIG. 1 shows an example in which there is one registration device 10, one log collection / analysis server 20, one web server 30, and one terminal device 40 for the sake of simplicity. However, the number of terminal devices 40 is generally plural. Further, the number of the registration device 10, the log collection analysis server 20, and the web server 30 is not limited to one and may be plural.

  The registration device 10 records information related to provision of merchandise for each transaction, and accumulates the recorded information to generate transaction data. Here, the commercial product is not limited to a tangible object that is an object of transaction independently. The product may be an intangible object, for example, data representing specific information (information product including content such as video, text, and audio). In addition, the commercial product may be a tangible or intangible object, such as an appendix or an advertisement, which is traded as a secondary or incidental transaction with another product. Commodities are generated by the functions of the tangible or intangible material used to provide the service when the main object of the transaction is a service, for example, the goods or data to be rented, the goods or programs to be lent. It may be tangible or intangible. A transaction is an action or process involving provision of merchandise in response to a user request. Transactions are not limited to sales (including electronic commerce), but include loans, gifts, transmission of various data, and provision of services. The registration device 10 may be a dedicated registration device (register) that records information related to provision of merchandise, or may be configured as a device having other functions. For example, the registration device 10 may include a printing machine (printer) having a printing function, a copying machine (copying machine) having a copying function, a reading machine (image scanner) having an image reading function, or communication instructed to read an image. You may comprise as a facsimile which has a function transmitted to the other party apparatus. The registration device 10 may be a single multifunction device having these functions. The registration device 10 may be installed in a place where an unspecified number of users visit and can be used at any time, such as a retail store such as a convenience store, a railway station, or other public facilities.

  In the following description, a case where the registration apparatus 10 is a multifunction peripheral having a function of selling a bromide representing a face image of a person designated in accordance with a user operation will be mainly described as an example. For example, a celebrity such as a singer, an actor, or an athlete can be selected as an instructable person. That is, bromides representing face images of different persons are selected as different types of products. The registration device 10 may store image data indicating a face image for each person in advance. Further, the registration apparatus 10 may transmit an image data request command to a predetermined device connected to the network NW, and receive image data instructed by the image request command as a response from the device. The registration apparatus 10 is instructed by one person or a plurality of persons in accordance with a user operation in one transaction. As the contents of one transaction, bromide representing the face image of the instructed person is instructed after the transaction start is instructed and until the next transaction end or settlement is instructed. Transaction start, transaction end or price settlement is instructed by detecting pressing of a transaction start button, transaction end button or settlement button provided in the registration device 10, respectively. For example, the person is indicated by a character string representing the name according to the operation. Further, the registration device 10 may display a face image for each person on a display unit (described later) and specify a person of the face image that includes the position touched by the operation in the display area. The registration device 10 prints bromide representing the face image of each instructed person after the completion of the payment process. For each transaction, a session ID (Identifier) indicating each transaction is updated. The registration device 10 generates sales data including the name of the face image of the person for each transaction as the content name as the transaction data, and transmits the generated sales data to the log collection and analysis server 20.

  The log collection / analysis server 20 receives (collects) sales data from the registration device 10. The log collection / analysis server 20 counts the number of simultaneous sales for each set of products made up of two types of products based on the received sales data. The number of simultaneous sales counts (analyzes) the number of simultaneous sales, which is the number of transactions in which two types of merchandise are provided at a time. For example, the log collection / analysis server 20 uses 2 types of products as two types of products among bromides representing a face image of a person whose face image is represented in a bromide provided for each transaction based on sales data. The number of times bromide was traded for each set of named persons is sequentially increased (incremented) by one. As a result, the number of simultaneous sales is counted for each set of product types. The log collection and analysis server 20 may count the number of simultaneous sales every predetermined period (for example, one month), or may count the number of simultaneous sales accumulated from the start of sales of the product. The log collection and analysis server 20 generates simultaneous sales data indicating the number of simultaneous sales as transaction status data indicating the transaction status for each set of two types of products. The log collection / analysis server 20 transmits the generated simultaneous sales data to the web server 30. The log collection / analysis server 20 is, for example, a database server device.

The web server 30 receives the simultaneous sales data from the log collection / analysis server 20. The web server 30 sets each of the two types of merchandise as parameters indicating the strength of the relationship between the two types of merchandise related to the set according to the number of simultaneous sales indicated by the received simultaneous sales data. Define parameters between nodes corresponding to each product. The link indicating the node and the relationship between the nodes will be described later. The web server 30 acquires parameter data including parameter information determined for each set of two types of products.
The web server 30 stores a predetermined application program in advance. The function of the application program will be described later. When receiving the program request command from the terminal device 40, the web server 30 transmits the application program specified by the received program request command to the terminal device 40 as a response. The web server 30 transmits the generated parameter data to the terminal device 40 that has transmitted the application program.

  The terminal device 40 generates a program request command for requesting a predetermined application program, and transmits the generated program request command to the web server 30. The terminal device 40 receives the application program from the web server 30 as a response to the transmitted program request command. The terminal device 40 performs the following process as a process instructed by the received application program. The terminal device 40 receives the parameter data from the web server 30 and sets a parameter indicating the strength of the relationship between the products for each of the sets of two types of products indicated by the received parameter data. The terminal device 40 calculates the position of each node corresponding to the product of the set so that a distance according to the strength of the relationship indicated by the parameter set for each set is obtained. The terminal device 40 generates data representing an edge connecting the positions of the nodes corresponding to the pair of products, and displays an image based on the generated data. The terminal device 40 may be a general-purpose device such as a personal computer (PC), workstation, or tablet terminal device, or may be a dedicated device.

(Sales data)
Next, an example of sales data generated by the registration device 10 will be described.
FIG. 2 is a diagram illustrating an example of sales data. In the example shown in FIG. 2, the sales data includes an execution date and time, a store name, a session ID (Identifier), a content name, and a charge amount, and is configured so that these pieces of information are associated with each provided product. . In the example shown in the second row of FIG. 2, the execution date and time “2015/5/24 18:26”, the store name “XXX”, the session ID “id1”, the content name “product 1”, and the charge amount “xxx” It is associated. The execution date and time indicates the time when the commercial material is provided. The store name indicates the name of the store where the registration device 10 is installed. The session ID is identification information that identifies each transaction. For example, the registration device 10 is updated by incrementing the session ID by one each time a transaction start is instructed. In the example shown in FIG. 2, the product 1 is provided in the transaction specified by the session ID “id1”, and the product 1 and the product 2 are provided at a time in the transaction specified by the session ID “id2”. Indicates. The content name is the name of the type of product to be provided. If the product is bromide, it may be information that identifies the person, such as the name or nickname of the person displayed, or identifies the institution such as the name of the group or organization to which the person belongs Information may further be included. The billing amount is the amount of consideration for the product to be provided. The billing amount may be determined in advance for each product, or may vary depending on the number of times the product is provided and the time.

(Simultaneous sales data)
Next, an example of simultaneous sales data generated by the log collection / analysis server 20 will be described.
FIG. 3 is a diagram illustrating an example of simultaneous sales data. In the example shown in FIG. 3, the number of simultaneous sales for each set of two types of products is shown. In the example shown in the second row of FIG. 3, it is indicated that the number of simultaneous sales of the group consisting of “product 1” and “product 2” is “A” times.

(Web server configuration)
Next, the configuration of the web server 30 according to the present embodiment will be described.
FIG. 4 is a block diagram showing a configuration of the web server 30 according to the present embodiment.
The web server 30 includes a communication unit 31, a control unit 32, and a storage unit 33.
The communication unit 31 outputs data received from a device connected to the network NW to the control unit 32 and transmits the data input from the control unit 32 to a destination device specified by the control unit 32. The communication unit 31 is, for example, a communication interface.

The control part 32 controls the process for implement | achieving the function of the web server 30, and those processes. The control unit 32 includes a control circuit such as a CPU (Central Processing Unit), for example. The control part 32 implement | achieves the function of the transaction status data acquisition part 321, the parameter data generation part 322, and the data provision part 323 by executing the command instruct | indicated by a predetermined program.
The transaction status data acquisition unit 321 receives the simultaneous sales data as the transaction status data from the log collection analysis server 20 via the communication unit 31, and stores the received simultaneous sales data in the storage unit 33.

  The parameter data generation unit 322 reads the simultaneous sales data from the storage unit 33, and based on the number of simultaneous sales for each set of the two types of products indicated by the read simultaneous sales data, between the two types of products related to the set A parameter indicating the strength of the relationship is defined. The parameter data generation unit 322 determines, for example, a weighting factor that monotonously increases as the number of simultaneous sales increases as a parameter indicating the strength of the relationship between two types of products. More specifically, the weighting factor may be a real value proportional to the number of simultaneous sales. The weighting coefficient is used as an attraction parameter that is multiplied to calculate an attraction force for nodes corresponding to each product to approach each other. As will be described later, a set of nodes corresponding to two types of merchandise is associated with an edge. The parameter data generation unit 322 stores edge-specific data indicating parameters determined for each group in the storage unit 33. The edge-specific data is configured as a part of parameter data stored in the storage unit 33.

  When the data providing unit 323 receives a program request command from the terminal device 40 via the communication unit 31, the data providing unit 323 reads a predetermined application program and parameter data from the storage unit 33. The storage unit 33 stores an application program and node-specific data in advance. The node-specific data is data used for displaying a node corresponding to each product, and is configured as another part of the parameter data. The node-specific data includes the name of the product and the attribute of the product. The attribute is, for example, a classification of the product. When the product is bromide, the name may be the name, abbreviation, or other alias of the person of the image represented by the bromide. The attribute may be the name of the group or organization to which the person belongs and other aliases. Therefore, the parameter data includes edge-specific data, node-specific data, and other data indicating various parameters required for executing the application program. The data providing unit 323 transmits the read application program and parameter data to the terminal device 40 via the communication unit 31 as a response corresponding to the program request command. Note that, when the edge-specific data stored in the storage unit 33 is updated, the data providing unit 323 may transmit the updated edge-specific data to the terminal device 40 via the communication unit 31.

  As described above, the storage unit 33 stores data used for processing performed by the control unit 32 and data generated by the control unit 32. The storage unit 33 includes a storage medium such as a RAM (Random Access Memory) and a ROM (Read-only Memory).

(Parameter data)
Next, an example of edge-specific data that is a part of the parameter data will be described.
FIG. 5 is a diagram illustrating an example of edge-specific data. In the example shown in FIG. 5, the edge-specific data is described using GML (Generative Modeling Language). “Edge” in FIG. 5 indicates that the data includes information about an edge indicating a relationship between two nodes. “Source” and the number “1” on the right side thereof are identification information (node ID) indicating that the type of the product associated with the connection source node is “product 1”. “Target” and the number “2” on the right side thereof are node IDs indicating that the type of the product associated with the connection destination node is “product 2”. “Weight” and the number “26” on the right side thereof indicate that the edge weight coefficient given for the combination of “product 1” and “product 2” is “26”. In this example, the number of simultaneous sales is defined as a weighting factor. By multiplying by this weighting factor, the stronger the relationship between “product 1” and “product 2”, the greater the attractive force. The number of types of merchandise is, when it is the N is the number of edges by the data shown in FIG. 5 is the maximum N ^2/2 pieces. The edge-specific data may be omitted for a pair of products whose edge weighting coefficient is “0”, that is, the number of simultaneous sales is 0. This is because, in the present embodiment, the connection source node and the connection destination node may be an undirected edge that is not distinguished.

Next, an example of node-specific data that is another part of the parameter data will be described.
FIG. 6 is a diagram illustrating an example of node-specific data. In the example shown in FIG. 6, the node-specific data is described using GML. “Node” in FIG. 6 indicates that the data includes information regarding each node. “Id 1” and “name“ product 1 ”” indicate that the name of the node whose node ID is “id1” is “product 1”. “Graphics [bitmap“ product 1 image file ”]” means that the image data representing “product 1” is set to “image 1 image file” which is a bitmap format file. Indicates. As “group“ product attribute ””, “product attribute” is set as the attribute of “product 1”. When the number of types of merchandise is N, the number of node-specific data shown in FIG. 6 is N.

  The node-specific data shown in FIG. 6 is used when displaying as a graph composed of nodes corresponding to the merchandise and edges indicating the relationship between the merchandise. In other words, the graph is composed of a set of nodes (nodes or vertices) and a set of edges (branches or edges). In the example illustrated in FIG. 9, the nodes nd01 and nd02 are each represented by a circle, and the edge ed12 between the nodes nd01 and nd02 is represented by a line segment. Nodes may be displayed as icons instead of circles. In the example illustrated in FIG. 7, the icon represents a human face image as an image representing a product. A character string indicating the name of the product is represented within a predetermined range from the bottom of the icon, and a character string indicating the attribute of the product is represented within the predetermined range from the upper side of the icon.

(Configuration of terminal device)
Next, the configuration of the terminal device 40 according to the present embodiment will be described.
FIG. 8 is a block diagram illustrating a configuration of the terminal device 40 according to the present embodiment.
The terminal device 40 includes a communication unit 41, a control unit 42, a display data output unit 43, an operation data input unit 44, and a storage unit 45. A display unit 47 and an operation unit 48 are connected to the terminal device 40 wirelessly or by wire.

  The communication unit 41 outputs data received from a device connected to the network NW to the control unit 42, and transmits data input from the control unit 42 to a destination device specified by the control unit 42. The communication unit 41 is, for example, a communication interface.

  The control unit 42 controls processes for realizing the functions of the terminal device 40 and those processes. The control unit 42 includes a control circuit such as a CPU, for example. The control unit 42 implements the functions of the data acquisition unit 421, the parameter setting unit 422, the position calculation unit 423, the display data generation unit 424, and the display setting unit 425 by executing instructions instructed by a predetermined program. . As a predetermined program, for example, the function of the data acquisition unit 421 is realized by a browser program stored in the storage unit 45. The functions of the position calculation unit 423, the display data generation unit 424, and the display setting unit 425 may be realized by an application program received by the data acquisition unit 421. The control unit 42 may control operations such as activation and termination of the application program.

  The data acquisition unit 421 receives the application program and parameter data from the web server 30 via the communication unit 41, and stores the received application program and parameter data in the storage unit 45. More specifically, the data acquisition unit 421 generates a program request command for acquiring the application program when the activation instruction data is input as the operation data input from the operation data input unit 44. The data acquisition unit 421 transmits the generated program request command to the web server 30 via the communication unit 41. The data acquisition unit 421 receives the application program and parameter data as a response to the program request command. Note that, when an instruction instructed by the application program is being executed, the data acquisition unit 421 may receive updated parameter data from the web server 30. In that case, the data acquisition unit 421 may store the received parameter data in the storage unit 45.

The parameter setting unit 422 reads parameter data from the storage unit 45 and sets the read parameter data as data used for processing to be described later. The parameter setting unit 422 sets the respective weighting factors of the sets of two types of products indicated by the edge-specific data in the read parameter data as parameters between nodes corresponding to the respective products.
The parameter setting unit 422 sets the name and the image for each product indicated by the node-specific data in the read parameter data as the parameter of the node corresponding to each of those products. If the attribute of the product is further set in the node-specific data, the attribute may be set as a parameter of the node corresponding to the attribute.

The position calculation unit 423 calculates the position of each node so that a distance corresponding to the parameter between the nodes set by the parameter setting unit 422 is obtained. The position calculation unit 423 stores position data indicating the calculated position for each node in the storage unit 45. The position calculation unit 423 uses, for example, a predetermined dynamic model when calculating the position of the node. In the dynamic model, it is assumed that attractive force and repulsive force are acting between nodes each having a predetermined mass as shown in FIG. For example, an elastic force of a spring is assumed as an attractive force acting between two nodes nd01 and nd02. The elastic force is proportional to the distance r between the nodes nd01 and nd02 (Hooke's law). In this embodiment, a value obtained by multiplying the spring coefficient K by the weighting coefficient w is used as a parameter for the attractive force between the nodes. In addition, a Coulomb force is assumed as a repulsive force acting between the two nodes nd01 and nd02. The Coulomb force is inversely proportional to the square r ² of the distance r between the nodes nd01 and nd02. In the present embodiment, the Coulomb coefficient C is used as the repulsive force parameter. Each node receives an attractive force and a repulsive force acting with other nodes and moves, but eventually converges to a position where the attractive force and the repulsive force are balanced. The greater the attractive parameter according to the strength of the relationship between the nodes, the smaller the distance between the nodes, and the smaller the attractive parameter, the greater the distance between the nodes. An example of processing for calculating the position of the node will be described later.

  Returning to FIG. 8, the display data generation unit 424 reads position data from the storage unit 45, and generates display data representing an image including an edge connecting the positions of the nodes indicated by the read position data. The image includes a product image corresponding to the position of the node and a graph including a line segment connecting the nodes as an edge. Here, the display data generation unit 424 does not include an edge having a weight coefficient value of 0 in the graph. The display data generation unit 424 outputs the generated display data to the display unit 47 via the display data output unit 43. As a result, the display data generation unit 424 can cause the display unit 47 to display a node corresponding to each of the products having a relationship with each other and a graph including the relationship as an edge.

  The display setting unit 425 changes the node data setting related to the display of each node based on the operation data input from the operation data input unit 44. For example, the display setting unit 425 changes the image displayed at the position of the node indicated by the operation data to another image indicated, and stores the node data updated to the image data representing the changed image. 45. For example, the face image of a certain person can be changed to an image obtained from another angle or a predetermined figure (for example, a circle) as a product image for the node. The display setting unit 425 changes the name or the attribute (group) of the node related to the node indicated by the operation data to the indicated name or the attribute of the product, and updates the changed information. Node data may be stored in the storage unit 45. In that case, the name and the attribute of the product related to the node are changed to the designated name and the attribute of the product.

The display data output unit 43 outputs the display data input from the control unit 42 to the display unit 47. The display data output unit 43 is, for example, a data output interface.
The operation data input unit 44 outputs the operation data input from the operation unit 48 to the control unit 42. The operation data input unit 44 is, for example, a data input interface.
The operation data input unit 44 may be configured as a data input / output interface integrated with the display data output unit 43.

The display unit 47 displays an image based on the display data input from the display data output unit 43. The display unit 47 is, for example, an LCD (Liquid Crystal Display: liquid crystal display).
The operation unit 48 generates operation data corresponding to a user operation, and outputs the generated operation data to the operation data input unit 44. The operation unit 48 is a pointing device such as a mouse, a joystick, or a touch sensor, for example. The operation unit 48 may be configured as a touch panel integrated with the display unit 47. Further, the terminal device 40 may be configured as an integrated terminal device including one or both of the display unit 47 and the operation unit 48.

(Information processing)
Next, information processing performed by the terminal device 40 according to the present embodiment will be described.
FIG. 10 is a flowchart showing information processing performed by the terminal device 40 according to the present embodiment.
(Step S <b> 101) The data acquisition unit 421 generates a program request command when activation instruction data is input from the operation data input unit 44. The data acquisition unit 421 transmits the generated program request command to the web server 30. The data acquisition unit 421 receives an application program and parameter data from the web server 30 as a response to the program request command. Thereafter, the process proceeds to step S102.

(Step S <b> 102) The control unit 42 performs an initialization process for performing the processes of steps S <b> 103 to S <b> 105 instructed by the application program acquired by the data acquisition unit 421. For example, the control unit 42 loads the parameter data acquired by the data acquisition unit into the RAM. In the position calculation unit 423, a weighting factor is set as a parameter for each node indicated by the node-specific data, and other parameters used for processing are set. Thereafter, the process proceeds to step S103.

(Step S103) The position calculation unit 423 calculates, for each node i, a force F _i that is applied according to the positional relationship with the other node j, for example, using the relationship shown in Expression (1).

In Equation (1), N, C, and K represent the number of nodes, the Coulomb coefficient, and the spring constant, respectively. r _{i, j} indicates the distance between the node i and the node j. w _{i, j} represents an edge weighting factor between the node i and the node j. The weight coefficient w _{i, j} is a value proportional to the number of simultaneous purchases, for example, as the strength of the relationship between the products corresponding to each of the node i and the node j. That is, the greater the number of simultaneous purchases, the greater the attractive force. If the number of simultaneous purchases is 0, the attractive force does not work.
The position calculation unit 423 calculates the acceleration a _i (t) by dividing the force F _i for each node i by the mass m. The relationship between the force F _i and the acceleration a _i (t) is represented by the equation of motion shown in Equation (2). In Expression (2), x _i (t) indicates the position of the node i at the current time. Thereafter, the process proceeds to step S104.

(Step S104) The position calculation unit 423 uses the relationship shown in Equation (3), for example, for each node i based on the speed v _i (t) at the current time t and the acceleration a _i (t). The speed v _i (t + Δt) at t + Δt is calculated.
v _i (t + Δt) = (1−μ) · (v _i (t) + Δt · a _i (t)) (3)
In Expression (3), Δt represents a calculation cycle. μ represents a friction coefficient. A real number larger than 0 and smaller than 1 is set in advance as the friction coefficient μ. By setting the friction coefficient μ, the speed of each node acts so as to decrease with time, so that the movement of each node is stabilized.
In addition, the position calculation unit 423 uses, for example, the relationship shown in Expression (4) to determine the position at the next time t + Δt based on the position x _i (t) and the speed v _i (t) at the current time t for each node i. x _i (t + Δt) is calculated.
x _i (t + Δt) = x _i (t) + Δt · v _i (t) (4)
Thereafter, the process proceeds to step S105.

(Step S105) The display data generation unit 424 draws an image including the node image and an edge connecting the nodes at the position of each node calculated by the position calculation unit 423, and generates display data representing the drawn image. . The display data generation unit 424 outputs the generated display data to the display unit 47. Here, the display data generation unit 424 does not need to include an edge with a weighting factor greater than 0, and does not include an edge with a weighting factor of 0 in the rendered image. Thereafter, the process proceeds to step S106.
(Step S <b> 106) The control unit 42 determines whether or not end instruction data is input from the operation data input unit 44. When determining that the input is made (YES in Step S106), the control unit 42 ends the process shown in FIG. When it is determined that there is no input (NO in step S106), the process returns to step S103.

Note that the processing in step S105 is not necessarily performed immediately after the processing in steps S103 and S104. For example, the processing in step S105 may be performed after the processing in steps S103 and S104 is repeated a predetermined number of times (for example, 10 times). Further, the processing of steps S103 and S104 and the processing of step S105 may not be synchronized. For example, when the display data generation unit 424 receives display instruction data as operation data from the operation data input unit 44 while the processes of steps S103 and S104 are repeated, the process of step S105 may be started. .
Note that the Coulomb coefficient C, the spring constant K, and the friction coefficient μ may be included as part of the parameter data. In that case, in step S102, the control unit 42 reads the Coulomb coefficient C, the spring constant K, and the friction coefficient μ from the parameter data stored in the storage unit 45, and reads the read Coulomb coefficient C, spring constant K, and friction coefficient. μ is set in the position calculation unit 423.
In the above example, the position _x i (t), velocity _v i (t) and the acceleration _a i (t) is, it is assumed to be a two-dimensional vector in the orthogonal coordinate system, the position _{x i} (T), velocity v _i (t) and acceleration a _i (t) may be a three-dimensional vector.

Next, the overall flow of information processing performed by the information processing system 1 according to the present embodiment will be described. FIG. 11 is a flowchart showing information processing performed by the information processing system 1 according to the present embodiment.
(Step S201) The registration device 10 generates sales data indicating one or a plurality of types of merchandise sold at a time, and sequentially records (registers) the generated sales data. The registration device 10 transmits the sales data newly recorded every predetermined period to the log collection / analysis server 20. Thereafter, the process proceeds to step S202.
(Step S202) The log collection / analysis server 20 receives (collects) sales data from the registration device 10 and sequentially records the received sales data. Thereafter, the process proceeds to step S203.
(Step S203) The log collection and analysis server 20 counts the number of simultaneous sales for each set of two types of products from the information on the products for each transaction indicated by the recorded sales data. The log collection / analysis server 20 generates simultaneous sales data indicating the number of simultaneous sales for each set as the transaction state data, and transmits the generated simultaneous sales data to the web server 30. Thereafter, the process proceeds to step S204.

(Step S <b> 204) The transaction state data acquisition unit 321 of the web server 30 receives the simultaneous sales data from the log collection analysis server 20. The parameter data generation unit 322 of the web server 30 determines a weighting factor as a parameter between nodes corresponding to each product based on the number of simultaneous sales for each set of two types of products indicated by the received simultaneous sales data. . The parameter data generation unit 322 stores edge-specific data indicating a weighting factor determined for each set of two types of products in the storage unit 33 as part of the parameter data. Thereafter, the process proceeds to step S205.

(Step S <b> 205) The data acquisition unit 421 of the terminal device 40 generates a program request command when activation instruction data is input as operation data, and transmits the generated program request command to the web server 30. The data acquisition unit 421 receives parameter data from the web server 30 as the response. In step S103 (FIG. 10), the position calculation unit 423 of the terminal device 40 calculates the force between nodes corresponding to each product using the weighting factor for each of the two types of sets indicated by the received parameter data as an attractive parameter. Use. Then, the process shown in FIG. 11 is complete | finished.

(Display example)
Next, a display example of an image displayed on the display unit 47 based on the display data generated by the display data generation unit 424 according to the present embodiment will be described.
FIG. 12 is a diagram illustrating a display example of an image according to the present embodiment. The display example shown in FIG. 12 is an example in which the product is bromide representing a person, and the number of simultaneous sales, which is the number of times each of the two types of products is provided simultaneously in each transaction, is set as a weighting factor. . However, in the display example shown in FIG. 12, the display of the face image is omitted.

  A vertically long rectangle represents a node corresponding to each product, and a line segment represents an edge connecting the nodes. The coordinates of the center of gravity of each node are obtained by adding the center coordinates of the display area to the value obtained by multiplying the coordinates of the node calculated by the position calculation unit 423 by the display data generation unit 424 by a predetermined magnification. It is done. A character string (for example, “KH”) represented at the center of each node represents an abbreviation of a person represented by bromide as an attribute of the product. Here, the display of the character string may be omitted as long as the face image of the person is displayed as the product image at the position of each node without being omitted. The line type of the frame line of each node indicates the group to which the person belongs. That is, the person related to the node whose frame line is a solid line, the person related to the broken line, and the person related to the dashed line belong to different groups. Note that the attribute of the product may be represented by the hue of the line, the luminance, the character, or a combination thereof. If a face image of a person is represented as a product image at the position of each node, the type of each product is specified.

  In addition, the display example illustrated in FIG. 12 represents a state in which the position of each node has converged to a substantially constant position as time elapses from the start of calculation of the position of each node. Under this state, the shorter the distance between the nodes, the greater the number of simultaneous sales of products corresponding to each node, and the longer the distance, the smaller the number of simultaneous sales. In addition, nodes not connected by an edge indicate that the number of simultaneous sales of the corresponding merchandise is 0.

In the position calculation unit 423, the initial speed of each node may be set so that the average value between nodes is zero. As a result, the average value of the positions of all the nodes is kept constant, and the translational movement of the entire node is avoided. Therefore, in setting the display coordinates for displaying each node in a predetermined display area, the average value of the positions of all nodes is subtracted from the position of each node, thereby eliminating the influence of translational motion at the position of each node. It does not have to be.
On the other hand, although the initial position of each node can be arbitrarily set, the position calculation unit 423 may add individual nodes to the calculation target intermittently at predetermined time intervals. In that case, the initial position of each node may be a fixed coordinate, for example, the origin. In FIG. 12, the position of the node in which the letter “O” is represented is a display position corresponding to the initial position of the node that is intermittently added to the calculation target.

As described above, the terminal device 40 according to the present embodiment sets the parameter indicating the strength of the relationship between the two types of products for each set of the two types of products. Is provided. The terminal device 40 includes a position calculation unit 423 that calculates the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the sets of products related to the parameter. Prepare. The terminal device 40 includes a display data generation unit 424 that generates display data representing edges that connect the positions of the nodes corresponding to the set of products related to the parameters.
With this configuration, presence / absence of the relationship between the products is represented by edges connecting a plurality of nodes, and display data representing a graph in which the nodes are distributed at a distance corresponding to the strength of the relationship between the products is generated. The graph allows the user to easily grasp the presence or absence of the relationship between the products and the strength of the relationship between the products.

Moreover, the above-mentioned parameter is so large that the frequency with which two types of goods are traded simultaneously is high. The position calculation unit 423 updates the position of the node corresponding to one of the two types of products based on the speed of the node, and corresponds to the other products of the set based on the parameters. The acceleration corresponding to the position of the node is calculated, and the speed of the node is updated based on the calculated acceleration.
With this configuration, the position of each node can be determined sequentially assuming a force corresponding to the strength of the relationship between the nodes. Even if the number of nodes increases, the position of each node can be calculated without complicating the model representing the relationship between the nodes, so that an increase in the amount of calculation can be suppressed. In addition, the user's interest can be attracted by each node moving sequentially.

Further, the display data generation unit 424 generates display data that represents an image of a product corresponding to each node at the position of the node.
With this configuration, since the image of the product corresponding to each node constituting the graph is included, the user who contacts the displayed graph can easily recognize the product corresponding to each node.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. About the same structure as embodiment mentioned above, the same code | symbol is attached | subjected and the description is used.
In the terminal device 40 of the information processing system 1 according to the present embodiment, the display data generation unit 424 changes the display form of an image to be displayed on the display unit 47 based on operation data input from the operation data input unit 44. For example, when a press on a node is detected, the display data generation unit 424 selects a set including the product related to the pressed node, and connects between the nodes corresponding to the selected set of products. Display data representing a line segment and a graph representing an image of a product corresponding to the selected set of nodes is generated. “Pressing” means that operation data indicating a position in a display area of an image is input. The generated image includes one selected node and each of the other nodes of the set including the node as one node, a corresponding product image, and a line segment connecting the nodes of the set. It represents an image that contains edges and does not contain links with other nodes. Therefore, only the nodes related to the selected node are displayed.

(Display example)
Next, a display example of an image displayed on the display unit 47 based on the display data generated by the display data generation unit 424 according to the present embodiment will be described.
FIG. 13 is a diagram illustrating a display example of an image according to the present embodiment. In the display example illustrated in FIG. 13, a case where a node corresponding to a bromide representing a person whose abbreviation is “RS” is designated by pressing is taken as an example. A straight line extending radially from the center of gravity of the node indicates an edge. In FIG. 13, as the nodes related to the node with the character string “RS”, the character strings “MS”, “KY”, “TS”, “YN”, “TM”, “SC”, “YA” ”And“ WY ”are shown. Thus, the user can easily recognize other types of merchandise sold at the same time as the specific merchandise. Further, the distance from “SC” becomes longer in the order of “MS”, “KY”, “TS”, “YN”, “TM”, “SC”, “YA”, and “WY”. As a result, it is possible to easily recognize the magnitude relationship between the number of simultaneous sales of a specific product and another type of product.

As described above, the terminal device 40 according to the present embodiment includes the operation data input unit 44 that inputs operation data. The display data generation unit 424 selects a set including a product of the type related to the node displayed at the position indicated by the operation data, and displays display data representing an edge between nodes corresponding to the selected set of products. Generate.
With this configuration, the display of the third node other than the node instructed by the operation and the other nodes related to the node is omitted. Therefore, it is possible to more easily recognize the product related to the instructed node, the other product related to the product, and the strength of the relationship.

(Third embodiment)
Next, a third embodiment of the present invention will be described. About the same structure as embodiment mentioned above, the same code | symbol is attached | subjected and the description is used.
In the terminal device 40 of the information processing system 1 according to the present embodiment, the display data generation unit 424 matches the character string represented by the operation data input from the operation data input unit 44 with the character string representing the name represented by the node data. Select a node to search (search for materials). Then, the display data generating unit 424 determines the position of the representative point (for example, the center point) of the display area of the display unit 47 as the display position of the selected node. The display data generation unit 424 performs coordinate conversion on the position of each node so that the predetermined display target area based on the position calculated by the position calculation unit 423 for the selected node becomes the predetermined display area of the display unit 47. Then, the converted position is calculated as the display position. The predetermined range includes the position of at least one node that is separate from the selected node. Here, when a node is selected, the display data generation unit 424 may increase the enlargement ratio from the predetermined display target area to the display area (make the display target area smaller). The display data generation unit 424 generates display data indicating a graph configured by including an edge connecting nodes arranged at the calculated display position, and an image of a product corresponding to the node at the display position of each node. May be. The display data generation unit 424 may detect a node using a node ID or a product attribute (group) instead of the name.

(Display example)
Next, a display example of an image displayed on the display unit 47 based on the display data generated by the display data generation unit 424 according to the present embodiment will be described.
FIG. 14 is a diagram illustrating a display example of an image according to the present embodiment. In the display example shown in FIG. 14, a menu window is displayed by pressing a button displayed at the right end of the upper side of the graph display area. The button to be pressed is marked with “item search” and is shaded as a mode different from other buttons not pressed. The menu window includes a message, an input window, an “OK” button, and a “Cancel” button. As a message, the text “Please enter the item name” that guides you to enter the name of the product is displayed. In the input window, the character string “RS” is also input as an abbreviation for the search target product. The “OK” button is shaded as a different form from the “Cancel” button when pressed. When the display data generation unit 424 detects that the “OK” button is pressed, the display data generation unit 424 selects a node including the character string “RS” input to the input window as an abbreviation. As a result, the node to which the selected character string “RS” is attached is displayed at substantially the center of the display area, and other nodes located within a predetermined range from this node are displayed. As a result, the product corresponding to the node desired by the user is searched, and other types of products sold at the same time as the searched product and the magnitude relationship of the number of simultaneous sales between the products are easily recognized. be able to.

As described above, the terminal device 40 according to the present embodiment includes the operation data input unit 44 that inputs operation data. The display data generation unit 424 converts the position of each node so that the position of the node indicated by the operation data becomes a representative point of a predetermined display area, and displays data representing an edge connecting the converted positions of the nodes. Generate.
With this configuration, the node indicated by the operation is displayed at the representative point of the display area, and a graph showing the relationship between the nodes is displayed. Therefore, it is possible to more easily recognize other products related to the product and the strength of the relationship with the product related to the instructed node as a reference.

(Modification)
It should be noted that the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope indicated in the claims, and the technical configurations disclosed in different embodiments are appropriately combined. The obtained embodiment is also included in the technical scope of the present invention.
Each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention.

For example, the display data generation unit 424 may perform coordinate conversion of the position of each node so that the interval between the nodes is changed according to the input of operation data. For example, while the “enlarge” button displayed on the display unit 47 is pressed, the display data generation unit 424 increases the enlargement rate from the position calculated by the position calculation unit 423 to the display position at the increase rate of the location. . For example, while the “reduction” button displayed on the display unit 47 is pressed, the display data generation unit 424 decreases the enlargement rate from the position calculated by the position calculation unit 423 to the display position with the current reduction rate. .
Thereby, the scale of arrangement of all the nodes is arbitrarily changed. Further, when the display data generation unit 424 detects pressing of the “whole drawing” button in response to the input of the operation data, the display positions of all the calculation target nodes are included in a predetermined display area as shown in FIG. As described above, the position of each node may be coordinate-converted (overall view). In the example shown in FIG. 15, each point represents a node. The enlargement ratio in coordinate conversion is the ratio of the horizontal width of the display area to the difference between the maximum and minimum horizontal coordinate values of all nodes, and the vertical to the difference between the maximum and minimum vertical coordinate values. It is set to be smaller than the smaller value of the direction width ratios. Also, by coordinate conversion, the horizontal coordinate value is set to the median value of the horizontal coordinate values of all nodes, and the vertical coordinate value is set to be the median value of the vertical coordinate values of all nodes.

  The display data generation unit 424 may generate display data representing a graph including each edge in a different display manner according to a weighting factor between nodes. More specifically, the display data generation unit 424 may increase the edge width as the weighting factor increases. Further, the display data generation unit 424 may increase the difference between one or both of the luminance and the hue of the background portion as the weighting factor is increased. As a result, the strength of the relationship between the products corresponding to the nodes is more easily recognized.

  In the above-described embodiment, the case where the position calculation unit 423 calculates the position for each node based on a predetermined dynamic model is exemplified, but the present invention is not limited thereto. The position calculation unit 423 calculates the position of each node using a predetermined numerical analysis method, for example, a least square method so that the distance corresponding to the number of simultaneous sales is satisfied as a constraint condition as the strength of the relationship between the nodes. May be. In this case, the larger the number of simultaneous sales between products, the smaller the distance between corresponding nodes, and the minimum value of the distance may be a predetermined positive real value.

  In the above-described embodiment, an example has been described in which the position calculation unit 423 calculates the position of each node corresponding to the type of product based on a predetermined dynamic model, but the present invention is not limited thereto. The position calculation unit 423 may calculate the position for each node corresponding to the attribute (group) of the product. In that case, the position calculation unit 423 uses the number of simultaneous sales between the product belonging to the group and the product belonging to the other group or the number of simultaneous sales as a weighting coefficient of a set of a certain group and another group. Use the corresponding value. The position calculation unit 423 uses the total mass of the nodes corresponding to the products belonging to the group as the mass of each group. When the position calculation instruction data for each group is input as operation data from the operation data input unit 44, the position calculation unit 423 may start calculating the position for each node corresponding to each group. The position calculation unit 423 obtains the position of the barycentric point between the nodes in the group and the average speed immediately before the position calculation instruction data for each group is input as the initial value and the initial value of the position of the node corresponding to the group. Use each one. On the other hand, the position calculation unit 423 resumes the calculation of the position for each node corresponding to each product type when the product-specific position calculation instruction data is input as the operation data from the operation data input unit 44. May be. The position calculation unit 423 immediately before the average value product-specific position calculation instruction data in the group of these initial values is input as the initial value of the position of each node corresponding to the type of product and the initial value of speed. The position and speed of the node corresponding to the group are determined. Thereby, before and after the position calculation unit is switched between the product and the group, the process of converging the position of each node to a predetermined position that is different between the nodes continues.

  In the embodiment described above, the terminal device 40 including the configuration of the data acquisition unit 421, the parameter setting unit 422, the position calculation unit 423, the display data generation unit 424, and the display setting unit 425 is taken as an example of the information processing device. This is not a limitation. For example, any one of the registration device 10, the log collection analysis server 20, the web server 30, or a combination thereof includes a data acquisition unit 421, a parameter setting unit 422, a position calculation unit 423, a display data generation unit 424, and a display setting unit 425. You may provide the structure of. In that case, the terminal device 40 may be omitted in the information processing system 1. In the web server 30, the function of the data acquisition unit 421 may be omitted.

The embodiment described above can also be implemented in the following manner.
(1) For each set of two types of products, a parameter setting unit that sets a parameter indicating the strength of the relationship between the two types of products, and between the sets of products related to the parameters, A position calculation unit that calculates the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained, and an edge connecting the position of each node corresponding to the product of the set An information processing apparatus comprising: a display data generation unit that generates data to be expressed.

(2) The parameter increases as the frequency of the pair of products is increased, and the position calculation unit determines the position of the node corresponding to the product of the set based on the speed of the node. The information processing apparatus according to (1), which updates, calculates an acceleration according to a position of a node corresponding to another product of the set based on the parameter, and updates a speed of the node based on the acceleration.

(3) The information processing apparatus according to (1) or (2), wherein the display data generation unit generates data representing an image of a product corresponding to the node at a position of the node.

(4) An operation data input unit for inputting operation data is further provided, and the display data generation unit selects a set including a product of a type related to a node displayed at a position indicated by the operation data, The information processing apparatus according to any one of (1) to (3), wherein data representing a predetermined image is generated in a node corresponding to the selected set of merchandise.

(5) An operation data input unit for inputting operation data is further provided, and the display data generation unit is configured to display each node so that the position of the node indicated by the operation data becomes a representative point of a predetermined display area. The information processing apparatus according to any one of (1) to (3), wherein the data representing the edges connecting the converted positions of the nodes is generated.

(6) An information processing system comprising: a server device that acquires the frequency at which two types of merchandise are provided at a time from record data indicating the type of merchandise for each provision; and the information processing device The apparatus includes a parameter setting unit that sets a parameter indicating the strength of the relationship between the two types of products as a parameter corresponding to the frequency for each of the sets of two types of products, and the parameter A position calculation unit that calculates the position of each node corresponding to the product so as to obtain a distance corresponding to the strength of the relationship indicated by the parameter between the products of the set, and corresponding to the product of the set An information processing system comprising: a display data generation unit that generates data representing edges connecting positions of nodes.

(7) An information processing method in the information processing apparatus, wherein a parameter setting process for setting a parameter indicating the strength of the relationship between the two types of products for each of the sets of two types of products, A position calculating process for calculating the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the products of the set related to the parameter; and the product of the set And a display data generation process for generating data representing edges connecting positions of nodes corresponding to the information processing method.

(8) A parameter setting procedure for setting a parameter indicating the strength of the relationship between the two types of products for each set of two types of products in the computer of the information processing apparatus; A position calculation procedure for calculating the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the products, and each node corresponding to the product of the set A program for executing a display data generation procedure for generating data representing edges connecting positions.

Note that a part of the web server 30, for example, the control unit 32 and a part of the terminal device 40, for example, the control unit 42 may be realized by a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.
Moreover, you may implement | achieve part or all of the web server 30 and the terminal device 40 in embodiment mentioned above as integrated circuits, such as LSI (Large Scale Integration). A part of each functional block of the web server 30 and the terminal device 40 may be individually made into a processor, or a part or all of them may be integrated into a processor. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to the advancement of semiconductor technology, an integrated circuit based on the technology may be used.

DESCRIPTION OF SYMBOLS 1 ... Information processing system, 10 ... Registration apparatus, 20 ... Log collection analysis server, 30 ... Web server, 31 ... Communication part, 32 ... Control part, 321 ... Transaction status data acquisition part, 322 ... Parameter data generation part, 323 ... Data providing unit, 33 ... storage unit, 40 ... terminal device, 41 ... communication unit, 42 ... control unit, 421 ... data acquisition unit, 422 ... parameter setting unit, 423 ... position calculation unit, 424 ... display data generation unit, 425 Display setting unit 43 Display data output unit 44 Operation data input unit 45 Storage unit 47 Display unit 48 Operation unit

Claims (8)

A parameter setting unit for setting a parameter indicating the strength of the relationship between the two types of products for each of the sets of two types of products;
A position calculation unit that calculates the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the set of products related to the parameter;
A display data generation unit that generates data representing an edge connecting the positions of the nodes corresponding to the set of products;
An information processing apparatus comprising: The parameter is larger as the frequency of the pair of merchandises being traded at the same time,
The position calculation unit updates the position of the node corresponding to the one product of the set based on the speed of the node, and according to the position of the node corresponding to the other product of the set based on the parameter. The information processing apparatus according to claim 1, wherein the acceleration is calculated and the speed of the node is updated based on the acceleration. The information processing apparatus according to claim 1, wherein the display data generation unit generates data representing an image of a product corresponding to the node at a position of the node. An operation data input unit for inputting operation data is further provided,
The display data generation unit selects a set including a type of merchandise related to the node displayed at the position indicated by the operation data, and represents data representing an edge between nodes corresponding to the selected set of merchandise. The information processing apparatus according to any one of claims 1 to 3. An operation data input unit for inputting operation data is further provided,
The display data generation unit converts the position of each node so that the position of the node indicated by the operation data becomes a representative point of a predetermined display area, and represents an edge connecting the converted positions of the nodes. The information processing apparatus according to any one of claims 1 to 3, wherein data is generated. An information processing system comprising a server device that acquires the frequency at which two types of merchandise are provided at a time from recorded data indicating the type of merchandise for each provision, and an information processing device,
The information processing apparatus includes:
A parameter setting unit that sets a parameter indicating the strength of the relationship between the two types of products as a parameter according to the frequency for each of the sets of two types of products;
A position calculation unit that calculates the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the set of products related to the parameter;
A display data generation unit that generates data representing an edge connecting the positions of the nodes corresponding to the set of products;
An information processing system comprising: An information processing method in an information processing apparatus,
A parameter setting process for setting a parameter indicating the strength of the relationship between the two types of products for each of the sets of two types of products;
A position calculation process for calculating the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the sets of products related to the parameter;
A display data generation process for generating data representing an edge connecting the positions of the nodes corresponding to the set of products;
An information processing method comprising: In the computer of the information processing device,
A parameter setting procedure for setting a parameter indicating the strength of the relationship between the two types of products for each of the sets of two types of products;
A position calculation procedure for calculating the position of each node corresponding to the product so that a distance corresponding to the strength of the relationship indicated by the parameter is obtained between the sets of products related to the parameter;
A display data generation procedure for generating data representing edges connecting the positions of the nodes corresponding to the set of products;
A program for running