JP7140389B2 - Virtual item exhibition acceptance program and system - Google Patents

Description

The present invention relates to a virtual item exhibition reception program and system for accepting exhibition of virtual items utilized in a virtual environment represented via a user terminal.

2. Description of the Related Art Conventionally, a technique of displaying an artificially constructed virtual space to a user and allowing the user to experience various virtual reality (VR) contents has been widely used. In particular, there has been proposed a technique for allowing a user to operate an avatar existing in a virtual space to achieve high operability and experience a high sense of realism (see, for example, Patent Document 1).

In order to experience such virtual reality content, a head-mounted display (HMD) is worn on the user's head. This allows the user to experience game content with a sense of immersion. In such game content, a more immersive experience is made possible by using body movements for game operations instead of a normal game pad (see, for example, Patent Document 2).

JP-A-2003-150978 JP 2012-79177 A

By the way, in recent years, a service has been put into practical use in which a user puts up and sells a virtual item created by the user himself/herself in a virtual environment of virtual reality content expressed via an HMD. In order to exhibit such virtual items with peace of mind, it is necessary to form a sound trading market for virtual items within the virtual environment. And in order to form this healthy trading market, it is necessary to limit the virtual items that are permitted to be exhibited to those that are neither counterfeits nor mere imitations of other creators. In order to eliminate virtual items that are counterfeits or mere imitations from the trading market, it is necessary to verify that the virtual items that are permitted to be listed are the only ones created by the true creator (hereinafter referred to as , uniqueness.), and it is necessary to narrow down to the first created and exhibited.

However, in the past, no system has been proposed for verifying the uniqueness of the exhibited virtual item and whether or not it was created and exhibited first. There was a problem that the way to form a healthy trading market for virtual items in the environment was not opened.

Accordingly, the present invention has been devised in view of the above-described problems, and its purpose is to establish a healthy trading market for virtual items in a virtual environment, and to To provide a virtual item exhibition acceptance program and system capable of verifying the uniqueness of a virtual item and verifying whether or not the virtual item was first created and exhibited.

A virtual item exhibition acceptance program according to a first aspect of the present invention includes an exhibition acceptance step of accepting an exhibition of a virtual item to be used in a virtual environment represented via a user terminal; A similarity degree that determines the degree of similarity between a recording step of recording newly exhibited virtual items in blocks linked by a blockchain built in a network each time, and the virtual items recorded in the recording step. causing a computer to perform a determination step and an evaluation step of evaluating each virtual item based on the similarity determined through the similarity determination step , wherein the evaluation step determines whether the similarity determined through the similarity determination step is Among the virtual items exceeding the threshold value, the virtual item recorded earlier is set to have a higher evaluation .

A virtual item exhibition acceptance program according to a second aspect of the present invention includes an exhibition acceptance step of accepting an exhibition of a virtual item to be used in a virtual environment expressed via a user terminal, and an exhibition acceptance step in which a new exhibition is accepted. A similarity degree that determines the degree of similarity between a recording step of recording newly exhibited virtual items in blocks linked by a blockchain built in a network each time, and the virtual items recorded in the recording step. a determining step, and among the virtual items whose similarities determined through the similarity determining step exceed a threshold value, the degree of promoting sales of the earlier recorded virtual items via the network is recorded later. and a sales promotion step of setting the value higher than the virtual item .

A virtual item exhibition acceptance program according to a third aspect of the present invention includes an exhibition acceptance step of accepting an exhibition of a virtual item to be used in a virtual environment expressed via a user terminal, and an exhibition acceptance step in which a new exhibition is accepted. a similarity determination step of determining a degree of similarity between a newly exhibited virtual item each time and another virtual item already recorded in a block linked by a blockchain constructed within a network; causing a computer to execute a recording control step of determining whether or not to record the newly exhibited virtual item in a block based on the determined similarity of the virtual item through the similarity determining step; If it is determined that the determined similarity exceeds the threshold, processing is performed so as not to record it in the block, and if it is determined that the similarity is equal to or less than the threshold, it is recorded in the block. and setting the degree of promoting sales of the virtual item recorded in the block via the network higher than that of the virtual item recorded later .

A virtual item exhibition acceptance program according to a fourth aspect of the present invention comprises an exhibition acceptance means for accepting an exhibition of a virtual item to be used in a virtual environment expressed through a user terminal, and an exhibition acceptance means for newly accepting an exhibition. A degree of similarity that determines the degree of similarity between a recording means that records newly exhibited virtual items each time in blocks that are linked by a blockchain built in a network and the virtual items that are recorded by the recording means. and the similarity degree discriminated by the similarity degree discriminating means exceeds a threshold value, and the degree of promoting sales of the virtual item recorded earlier through the network is recorded later. and a sales promotion means that is set higher than the virtual item .

The present invention discriminates in advance the degree of similarity between put-up virtual items that are actually to be promoted and other virtual items, and if a virtual item with a high degree of similarity is temporarily recorded, it is recorded first. Control to promote sales only for As a result, it is possible to limit the virtual items that are permitted to be exhibited to those that are neither counterfeits nor mere imitations of other creators. By excluding virtual items that are counterfeits or mere imitations from the trading market, it is necessary to verify that the virtual items that are permitted to be exhibited are the only ones created by the true creators. Uniqueness can be secured, and it is also possible to narrow down to the first created and exhibited. As a result, it is possible to form a sound trading market for virtual items.

It is a block diagram showing an example of a virtual item exhibition acceptance system. It is a schematic diagram which shows an example of a structure of a virtual item exhibition management apparatus. FIG. 4 is a schematic diagram showing an example of functions of a virtual item exhibition management device; FIG. 2 is a diagram for explaining the configuration of a user terminal; FIG. FIG. 2 is a diagram for explaining a block configuration of a user terminal; FIG. It is a figure which shows an example of the content management table recorded on a database. FIG. 10 is a flowchart for explaining the operation of the virtual item exhibition acceptance system; FIG. FIG. 4 is a flow chart showing an example of evaluating each virtual item based on the determined similarity. FIG. FIG. 13 is another flowchart for explaining the operation of the virtual item exhibition acceptance system; FIG. FIG. 10 is a diagram showing an example of determining similarity of virtual items by artificial intelligence;

An example of a virtual item exhibition acceptance program and system according to an embodiment of the present invention will be described below with reference to the drawings.

(First embodiment: Configuration of virtual item exhibition management device 1)
An example of the configuration of the virtual item exhibition acceptance system 100 will be described with reference to FIGS. 1 to 5. FIG. FIG. 1 is a block diagram showing the overall configuration of a virtual item exhibition acceptance system 100 according to this embodiment.

As shown in FIG. 1 , the virtual item exhibition acceptance system 100 includes a virtual item exhibition management device 1 . The virtual item exhibition management device 1 may be connected to at least one of the user terminals 5 (5a to 5c, etc.) and the database 6, for example, via the public communication network 40 (blockchain network 40c).

<Virtual item exhibition management device 1>
The virtual item exhibition management device 1 according to the present embodiment is mainly provided on a network, and is a system for users to experience various virtual reality contents such as games, for example.

FIG. 2 is a schematic diagram showing an example of the configuration of the virtual item exhibition management device 1 in the virtual item exhibition reception system 100. As shown in FIG. As the virtual item exhibition management device 1, an electronic device such as a mainframe, a midrange, a workstation, a supercomputer, etc. is used. The virtual item exhibition management device 1 includes a housing 10, a CPU 11, a ROM 12, a RAM 13, a storage section 14, and I/Fs 15-17. The I/Fs 15 - 17 are connected by an internal bus 18 .

A CPU (Central Processing Unit) 11 controls the entire virtual item exhibition management apparatus 1 . A ROM (Read Only Memory) 12 stores operation codes of the CPU 11 . A RAM (Random Access Memory) 13 is a work area used when the CPU 11 operates. The storage unit 14 stores various types of information such as application programs, analysis logic, vocabulary/syntax programs, and the like. As the storage unit 14, for example, a data storage device such as an SSD (solid state drive) is used in addition to an HDD (Hard Disk Drive). For example, the virtual item exhibition management device 1 may have a GPU (Graphics Processing Unit) not shown. Having a GPU enables higher-speed arithmetic processing than usual.

The I/F 15 is an interface for transmitting/receiving various information with the user terminal 5, an external database (not shown), etc. via the public communication network 40. FIG. The I/F 16 is an interface for transmitting and receiving information to and from the input section 20 . A keyboard or a touch panel, for example, is used as the input unit 20, and the administrator or operator of the virtual item exhibition reception system 100 inputs various information or control commands for the virtual item exhibition management device 1 through the input unit 20. do. The I/F 17 is an interface for transmitting and receiving various information to and from the output section 19 . The output unit 19 outputs various information stored in the storage unit 14, the processing status of the virtual item exhibition management device 1, and the like. A display may be used as the output unit 19, and may be of a touch panel type, for example.

FIG. 3 is a schematic diagram showing an example of functions of the virtual item exhibition management device 1 in the virtual item exhibition reception system 100. As shown in FIG. The virtual item exhibition management device 1 includes at least an exhibition reception management unit 7, a block chain unit 3, a storage unit 24, a transmission/reception unit 26, and a determination unit 27, and a database 6 is connected. The functions shown in FIG. 3 are realized by the CPU 11 executing a program stored in the storage unit 14 or the like using the RAM 13 as a work area.

<Memory means 24>
The storage means 24 is a means for temporarily storing, for example, when a virtual item is newly exhibited by a user. For example, each time a new virtual item is acquired, the storage unit 14 accumulates a history of contents already recorded on the block. The storage means 24 may store information in units of information or in units of certain groups, or may store information at predetermined intervals as needed.

<transmitting/receiving means 26>
The transmitting/receiving means 26, for example, the user terminals 5 (5a to 5c, etc.) connected to the virtual item exhibition management device 1 via the public communication network 40 (blockchain network 40c), and each data and information of the database 6 etc. and send and receive. Each history transmitted/received via the transmitting/receiving means 26 is recorded on each corresponding block.

<Determination means 27>
For example, when a user puts up a new virtual item, the determining means 27 determines similarity with other virtual items previously recorded in the blockchain network 40c. This similarity determination is performed by referring to the database 6 as necessary.

<Blockchain part 3>
In the virtual item exhibition management device 1, the block chain unit 3 includes at least block chain control means 31, metadata generation means 32, encryption means 33, and electronic signature means 34 related to block chain technology, for example. The block chain unit 3 forms, for example, a block chain network 40 c on the public communication network 40 , stores all records exchanged on the block chain network 40 c via the transmission/reception means 26 , and accumulates them in the database 6 .

Among the user terminals 5, terminals such as user terminals 5b to 5c registered as members are connected to the blockchain network 40c. Terminals such as the user terminal 5b to the user terminal 5c are interconnected by a blockchain network 40c, and are configured for "peer-to-peer type" management without a terminal playing the role of centralized management.

<Blockchain control means 31>
Blockchain control means 31 controls virtual item exhibition management device 1 and user terminals 5b to 5c, etc., between terminals such as user terminals 5b to 5c connected to virtual item exhibition management device 1 via blockchain network 40c. A series of information such as each interaction with the terminal, transaction, etc. is grouped as a block when it reaches a certain time interval or a certain number. When a block is received, control is performed to link it to the current block chain as a new block chain.

In addition, when a new block is received from the virtual item exhibition management device 1 or terminals such as the user terminals 5b to 5c, the blockchain control means 31 receives the block and each information and transaction contained in the block. After verifying such as, only when it is recognized as valid, it is chained to the following block.

In addition, for exchanges in the block chain control means 31, applications are executed by distributed ledger technology, for example, and continuity of each stored history is guaranteed. As a result, the virtual item exhibition management device 1 and each node can jointly possess block chain data, each virtual item, history, etc., and can transmit and receive data, information, and various contents via the block chain network 40c.

<Metadata generating means 32>
The metadata generating means 32 generates metadata regarding each virtual item exchanged between the virtual item exhibition management device 1 and the terminals such as the user terminals 5b to 5c in the virtual item exhibition acceptance system 100. FIG. Each virtual item is stored in database 6 . For example, based on the metadata of each virtual item, the metadata generation means 32 generates information such as the date of generation of each virtual item, the creator (user terminal ID), and information on software and hardware used to generate each virtual item. Include any software or hardware information associated with the creation of the virtual item. This makes it possible, for example, to ensure the authenticity of each virtual item, and to have a unique and absolute block chain for information recorded in all blocks.

The encryption means 33 encrypts each virtual item exchanged by the virtual item exhibition management apparatus 1 based on the license (public/limited public) granted to various contents. Management information regarding the encryption of each virtual item is stored in database 6 . The encryption means 33 may encrypt each virtual item according to the policies and rules of the virtual item exhibition acceptance system 100 and the virtual item exhibition management device 1, for example. Furthermore, the encryption may be performed according to the instruction of the right holder (right holder) of each virtual item. For example, among the virtual items registered in the database 6, the encryption means 33 does not encrypt virtual items that allow free access or free distribution. The content may be encrypted.

<Electronic Signature Means 34>
The electronic signature means 34, for example, applies an electronic signature to the hash value and metadata of each virtual item. The encryption means 33 encrypts each virtual item, calculates a hash value of the encrypted virtual item, and attaches an electronic signature together with the hash value of the original virtual item and metadata. The encryption means 33 obtains the hash value of the virtual item and the electronic signature of the encoder chip for the metadata of the virtual item, if the encoder chip supports electronic signatures. In addition to the metadata described in each virtual item, the encryption means 33 encrypts the metadata generated and attached by the metadata generation means 32 and, if the virtual item is encrypted, the encrypted virtual item. The electronic signature is given including the hash value of

<Public communication network 40>
The public communication network 40 is an Internet network or the like connected via a communication circuit, and may be configured by an optical fiber communication network. Public communication network 40 is not limited to a wired communication network, and may be realized by a wireless communication network. The public communication network 40 is further configured with a block chain network 40c.

<Blockchain network 40c>
The blockchain network 40c is realized by blockchain technology (distributed ledger technology). Each block has a number of transactions, a special value called a nonce, and a hash of the previous block. Only transactions included in blocks are recognized as "correct transactions". This allows us to have a "unique chain of blocks" overall.

The blockchain network 40c can distribute and share a history of consistent exchanges over the entire blockchain network 40c between the connected virtual item exhibition management device 1 and the user terminals 5 connected by the blockchain network 40c. It becomes possible. Furthermore, the blockchain network 40c has electronic (each virtual item) existence proof function while being connected by the public communication network 40, for example. This existence proof function is a function to prove that certain electronic data existed on the device connected to the public communication network 40 and each virtual item existed on the public communication network 40 at a certain point in time. have

In the blockchain network 40c, the electronic data subject to existence proof is, for example, a virtual item registered in a virtual item management table 200, which will be described later. Various data and files are registered. It also includes a large amount of training data (not shown) for AI to learn in order to present solution concepts.

<User terminal 5>
A user terminal 5 is connected to a plurality of user terminals 5a to 5c and the like via a public communication network 40. FIG. The user terminals 5b to 5c can receive the content distribution service provided by the virtual item exhibition management apparatus 1 by performing user registration with the virtual item exhibition management apparatus 1. FIG. Further, the user terminals 5b to 5c register the virtual items created by each user in the virtual item exhibition management device 1, so that they can be registered with another registered user via the virtual item exhibition management device 1. It will be possible to provide content that is available.

The user terminal 5 may be composed of a PC, a smartphone, a mobile phone, a wearable terminal, or the like, but in the present invention, the case of applying a head-mounted display (HMD) that can be worn on the user's head will be described as an example. do. According to this HMD, a virtual reality (VR:Virtual Reality) content can be experienced.

FIG. 4 shows an example of applying this HMD as the user terminal 5 . The user terminal 5 is configured as a so-called head-mounted display that can be worn on the head of a so-called viewer. The user terminal 5 is a glasses-type or goggles-type display device, and includes a head-mounted unit 41 , an image display unit 42 , headphones 43 , an imaging unit 44 , a motion sensor 59 , and a microphone 60 . The user terminal 5 also includes an operation unit 65 for the user to operate his/her own avatar within the virtual environment. When the user terminal 5 is configured as a goggle type, it is desirable to have a shield for completely blocking external visual stimuli.

The head mounting portion 41 is urged in a direction in which the right frame 41a and the left frame 41b approach each other inward, and the wearer spreads the right frame 41a and the left frame 41b to mount on the head. , or can be removed freely. Headphones 43 are attached to the ends of the right frame 41a and the left frame 41b. The head attachment part 41 can be fixed to the head as a whole by tightening a loop extending to the back of the head after attachment.

The image display unit 42 is intended to directly project an image onto the wearer's retina so that the image can be visually recognized. A unit for controlling video display, audio output, etc. by the user terminal 5 is mounted inside the video display unit 42 . Further, a nose pad portion 42a may be provided at the lower end of the image display portion 42 for achieving stable wearing by placing it on the wearer's nose.

The headphones 43 can be worn on the wearer's ears. The headphones 43 are not limited to those having a shape and size that completely enclose the wearer's ears, and may be small earphones. Also, the configuration of the headphone 43 is not essential, and may be omitted if necessary, but it is desirable that the headphone 43 have a noise canceling function when used. The configuration of the headphone 43 itself may be omitted, or may be replaced by other well-known earphones or the like.

The imaging section 44 is provided near the substantially central portion of the image display section 42 . As a result, the imaging unit 44 can capture the real space as a live image from a viewpoint that is substantially the same as that of the wearer. The motion sensor 59 is fixed integrally with the video display unit 42 like the imaging unit 44 . Also, the microphone 60 is provided near the headphone 43, but is not limited to this and may be provided at any location.

The operation unit 65 has an external shape that is easy for the user to grip, and is further provided with keys 65a and the like that can be operated by the user's fingers.

FIG. 5 shows a block configuration of this user terminal 5. As shown in FIG. The user terminal 5 has a motion sensor 59 , a microphone 60 , an image display section 42 , headphones 43 and an imaging section 44 , and the image display section 42 has a display panel 62 . The user terminal 5 has a peripheral interface (I/F) 57 and a control application 20 . The power switch 58 and the operation unit 65 are connected to this peripheral I/F 57 . The motion sensor 59, the microphone 60, the display panel 62, the headphone 43, and the imaging section 44 are connected to the peripheral I/F 57, respectively.

The display panel 62 displays the image captured by the imaging unit 44 or the image transmitted from the control application 20 . When a video signal is input, the display panel 62 generates signals (three primary color signals of R, G, and B) that are elements for generating an image based on the video signal. Also, light based on the generated RGB signals is emitted and combined, and the light is two-dimensionally scanned. The two-dimensionally scanned light is transformed such that its centerline converges on the wearer's pupil and is projected onto the retina of the wearer's eye.

An audio signal is input to the headphone 43 . The headphone 43 outputs sound based on the input audio signal.

The peripheral I/F 57 is an interface that plays a role of relaying transmission and reception of various information for transmitting information acquired from the motion sensor 59 , the microphone 60 , the operation unit 65 and the like to the control application 20 .

The power switch 58 is, for example, a button-type switch that is exposed to the outside and can be pressed. When the wearer presses the power switch 58, the processing operation of the user terminal 5 is started or ended. When the power switch 58 is pressed, the ON/OFF of the user terminal 5 is switched via the peripheral I/F 57 .

The motion sensor 59 detects motion of the wearer's head. A gyro sensor, an acceleration sensor, a geomagnetic sensor, or the like is used as the motion sensor 59 to detect the angle and inclination of the wearer's head. This motion sensor 59 may detect the position of the head itself. Also, the motion sensor 59 may be replaced with a motion capture system using a camera (not shown) installed in the experience environment. Data regarding the movement of the wearer's head acquired by the movement sensor 59 is transmitted to the control application 20 via the peripheral I/F 57 .

The microphone 60 collects ambient sounds and converts them into sound signals. Microphone 60 transmits the converted audio signal to headphone 43 via peripheral I/F 57 . Some processing may be applied to the audio signal during this transmission process.

The operation unit 65 is a so-called user interface for the user to input based on his/her intention. When some kind of input is performed on this operation unit 65 , the information is transmitted to the control application 20 via the peripheral I/F 57 .

The control application 20 is application software for controlling the user terminal 5 as a whole. Through the control application 20, the user can enjoy various types of VR content, and can also experience immersive game content.

<Database 6>
The database 6 stores a virtual item management table 200 as shown in FIG. The virtual item management table 200 stores information regarding registration of each virtual item provided by the virtual item exhibition management apparatus 1, and the like.

The virtual item management table 200 stores all virtual items registered in this service and information related thereto in association with each other. In the virtual item management table 200, for example, items such as "virtual item ID", "virtual item title", "registered virtual item information", "registration date", and "registrant ID" are associated with each other. data format file.

The “virtual item ID” is, for example, identification information given to identify each virtual item, and is stored as a unique identifier.

The "virtual item title" is, for example, the name of the virtual item to be registered. ” etc.

In the "registered virtual item information", for example, still images and moving images of virtual items, descriptions, drawings, and various data constituting specifications thereof are stored in association with each other. For example, a detailed description (text) of the virtual item may be registered in the record area of each registered virtual item.

The “registration date” may be sequentially recorded in each content based on a time stamp function (not shown) provided in the blockchain control means 31 of the blockchain unit 3 .

"Registrant ID" is identification information about a registrant of the virtual item exhibition management device 1, and is stored in association with each registered content.

In the content management table 200, for example, in the data record “No. , moving image “AAA2”, description “AAA3”, and drawing “AAA4” are associated with each other and stored.

Next, the operation of the virtual item exhibition acceptance system 100 configured as described above will be described based on the flowchart shown in FIG.

A user first creates a virtual item to be used in virtual reality (VR) content within a virtual environment represented via the user terminal 5 . These virtual items are various items that are usually used only in the virtual environment (clothes, weapons, armor, hats, shoes, tools, stationery, information and data, robots, machines, PCs, smartphones, electrical appliances, household goods, furniture , sporting goods, interior goods, hobby goods, vehicles, accessories, tools, housing, etc.). Such virtual items may be created using commercially available image production software, video production software, etc., or may be created using well-known image or video production technology even if it is not commercially available. , you may create it by making full use of your own original technology. A virtual item created by any method should be usable in a virtual environment and exhibited as electronic data.

The user puts up the created virtual item via the user terminal 5 (step S110). However, the listing of this virtual item is not limited to the case where it is performed via the user terminal 5 that enjoys the VR content, and can be exhibited via any other device (PC, smartphone, tablet terminal, wearable terminal, etc.). You may make it

The virtual items put up for sale in this way are sent to the public communication network 40 and then sent to the virtual item exhibition management apparatus 1 .

Next, in step S120, the virtual item exhibition management device 1 records the exhibited virtual item in the database 6 and also in the blockchain network 40c. When the virtual item exhibition management device 1 records put-up virtual items in the database 6, the virtual item exhibition management device 1 sequentially records them in the content management table 200 as shown in FIG. 6, for example. As a result, new virtual items are added to the contents management table 200 in order from No.1. Similarly, in the blockchain network 40c as well, newly exhibited virtual items are sequentially recorded.

Next, the process proceeds to step S130 to determine the degree of similarity between virtual items. This similarity is compared between one virtual item and other virtual items already recorded in the blockchain network 40c. At this time, when a newly put up virtual item is recorded in the blockchain network 40c, the degree of similarity may be determined each time with other previously recorded virtual items. good.

This degree of similarity determination is narrowed down by, for example, sorting and retrieving other virtual items that are similar to one virtual item. At this time, the content management table 200 may be referenced to narrow down other virtual items similar to the one virtual item.

For example, one newly put up virtual item is listed as No. 1 in the content management table 200 shown in FIG. is 'n', the virtual item ID is 'Nnnn1', and the virtual item title is 'women's clothing'. When retrieving other virtual items similar to this one, it may be performed based on whether or not there is an identical or similar one in this virtual item title. In the example of FIG. 6, "No. 1", the virtual item ID is "00001", and the virtual item title is "women's clothing", so this is picked up as another virtual item to be compared.

Next, by comparing the contents of the registered virtual item information between one virtual item (virtual item ID: "Nnnn1") and another virtual item (virtual item ID: "00001"), the degree of similarity is calculated. discriminate. Actually, between one virtual item (virtual item ID: "Nnnn1") and another virtual item (virtual item ID: "00001"), each still image, moving image, explanatory text, drawing, etc. Compare and determine the degree of matching and the degree of non-matching. The determination of the degree of similarity between still images and moving images is performed by confirming the identity, similarity, and dissimilarity of shapes, patterns, colors, etc. appearing on the images, for example. This determination of similarity between images may be performed by determining the identity, similarity, and dissimilarity of characteristic regions appearing on the images by using artificial intelligence or deep learning technology, for example.

Although any specific judgment criteria for such similarity may be used, for example, it is possible to judge what percentage or how many of the same shapes are included in the shape of the image of the virtual item. Alternatively, the determination may be made based on the percentage or number of the same colors or patterns included in the total.

When determining the degree of similarity through the description, it is necessary to determine the percentage or number of identical or similar words, keywords, morphemes, etc. in the description. good too.

The degree of similarity may finally be expressed in degrees. This frequency increases as they approach similarity and decreases as they approach dissimilarity. If the degree of similarity exceeds a certain threshold, it may be determined that they are identical or similar, and if the degree of similarity is less than or equal to a certain threshold, it may be determined that they are dissimilar.

After determining the degree of similarity in this manner, the process proceeds to step S140. By the way, this degree of similarity should be determined not only on a one-to-one basis between one virtual item and other virtual items, but also on a one-to-many basis between one virtual item and a plurality of other virtual items. may

In step S140, each virtual item is evaluated based on the degree of similarity determined in step S130. This evaluation may be classified as shown in FIG. For example, as shown in step S210, when the similarity obtained by comparing one virtual item to be evaluated with another virtual item is equal to or less than a threshold, one virtual item It means dissimilarity with the item, and an evaluation value A is set. On the other hand, when the degree of similarity exceeds the threshold, it is determined whether or not one virtual item is a virtual item recorded earlier than another virtual item. The recording date and time of the virtual item may be determined by referring to the registration date recorded in the content management table 200 described above, the recording date and time in the blockchain network 40c, and the like.

As a result, if one virtual item is a virtual item recorded earlier than the other virtual item, the evaluation value is B, and the one virtual item is recorded with the other virtual item. , and if the virtual item is recorded later, the evaluation value is C. If one virtual item is recorded later, the evaluation value will inevitably be C. Therefore, the determination step of step S220 is intentionally included.

Of the evaluation values A to C thus obtained, evaluation value B is set to the highest evaluation value. In other words, the evaluation value B constitutes the shape and pattern of a virtual item that has a very high degree of attention because there are many identical or similar virtual items, and is recorded earlier than other items. A higher evaluation value is set for quickly coming up with a virtual item that has high user needs.

Of the evaluation values A to C, the evaluation value A is set to have the second highest evaluation value. In other words, the evaluation value A is the second highest evaluation because there are no identical or similar virtual items, only dissimilar virtual items exist, and this is the only virtual item that has a similar shape and pattern. It sets the value.

Of the evaluation values A to C, the evaluation value C is set to be the lowest. In other words, although there are many identical and similar virtual items, the evaluation value B is that the user who came up with the idea earlier has already put up the same and similar virtual items. It is not strange to think that it is an imitation of the item, and it sets a lower evaluation value.

Note that the evaluation value A may be set higher than the evaluation value B on a case-by-case basis.

The evaluation method of FIG. 8 described above is an example, and any other evaluation method may be used as long as it is based on the determined similarity.

The virtual item exhibition management device 1 may perform a process of promoting sales of the virtual items recorded in each block of the database 6 and the block chain network 40c in this way. At this time, the virtual item exhibition management device 1 may set a higher degree of promoting sales in order of the group with the higher evaluation value. In the above example, the group with the evaluation value B is most likely to be promoted for sales, and the second group with the evaluation value A is set to have a lower degree of sales promotion than the group with the evaluation value B. may be the group of the evaluation value C.

At this time, the virtual item exhibition management apparatus 1 may actually set such that only the groups of evaluation value B and evaluation value A are permitted to be sold, and the group of evaluation value C is not permitted to be sold.

The trading of the exhibited virtual items may be performed in the virtual environment provided by the user terminal 5, or may be performed in the real world deviating from the virtual environment. In any case, the buying and selling of this virtual item is carried out through the public communication network 40, and may be carried out on a unique Internet site for providing the place.

In the virtual item trading market provided in this way, since the virtual item exhibitor and the time of the event are actually recorded in blocks in the blockchain network 40c, it is possible to specify the exhibitor who conducts the transaction. can be done.

In addition, according to the present invention, when the storage means 24 acquires a newly put up virtual item, it records it in a block connected by a block chain constructed in the block chain network 40c, and creates a new virtual item. Each time an item is put up for sale, a history of the contents recorded on each block is accumulated. Therefore, even when a large number of virtual items are received in updating the virtual items as needed, the previously set virtual items are not overwritten or lost. Furthermore, since the information on the blockchain network 40c is open and distributed, everyone who participates in the blockchain network 40c can access the data, and it is possible to prepare substantial virtual item information. Become.

Further, according to the present invention, the storage means 24 records in blocks linked by a block chain constructed on the block chain network 40c. As a result, large amounts of data accumulate in distributed systems. As a result, compared to a conventional central management server, even if an unforeseen event such as a natural disaster occurs and damage occurs, data will continue to be stored. Furthermore, the risk of hacking can be eliminated, and the resistance to data tampering can be maintained at a high level.

In addition to this, the present invention discriminates in advance the degree of similarity between exhibited virtual items and other virtual items for items that are actually to be promoted, and if virtual items with a high degree of similarity Control to promote only those previously recorded. As a result, it is possible to limit the virtual items that are permitted to be exhibited to those that are neither counterfeits nor mere imitations of other creators. By excluding virtual items that are counterfeits or mere imitations from the trading market, it is necessary to verify that the virtual items that are permitted to be exhibited are the only ones created by the true creators. Uniqueness can be secured, and it is also possible to narrow down to the first created and exhibited. As a result, it is possible to form a sound trading market for virtual items.

It should be noted that the present invention is not limited to the above-described embodiments. For example, as shown in FIG. 9, instead of immediately recording the exhibited virtual item in the blockchain network 40c, the degree of similarity between the virtual items is first determined (step S130'), and the similarity is compared. , it may be determined whether or not to record the exhibited virtual item in the database 6 and the blockchain network 40c (step S120').

The processing operation of step S130′ is the same as that of step S130 described above, but one virtual item to be evaluated for similarity here is newly exhibited and is still recorded in the database 6 and the blockchain network 40c. It is a virtual item that is not The degree of similarity of the virtual item is compared with other virtual items already recorded in the database 6 and the blockchain network 40c.

The processing operation of step S120' is the same as that of step S120 described above. On the other hand, only one virtual item determined to be dissimilar is newly recorded in the database 6 and the blockchain network 40c. A virtual item determined to be the same or similar to other virtual items is deleted without being recorded in the database 6 and the blockchain network 40c. As a result, as shown in FIG. 8, only the virtual items that received an evaluation value A whose similarity exceeds the threshold are recorded in the blockchain network 40c or the like. After receiving the evaluation value C, it is no longer recorded in the blockchain network 40c or the like.

With this method, it is also possible to ensure uniqueness, so to speak, and to narrow down to the works that were created and exhibited first. As a result, it is possible to form a sound trading market for virtual items.

FIG. 10 shows an example in which artificial intelligence determines the similarity of virtual items. In the example of FIG. 10, the input data are image information (still image, moving image) in the registered virtual item information, description information, and title information of the virtual item. An intermediate node 61 shown in FIG. 10 is a combination of image information, title information, and description information as such input data. Each intermediate node 61 is further coupled to an output. In this output, we are connected to the similarity as the output solution.

Each combination (intermediate node) of the image information, the title information, and the description information is associated with each other through three or more levels of association with respect to the similarity as the output solution. Image information, title information, and explanatory text information are arranged on the left side through the degree of association, and each degree of similarity is arranged on the right side through the degree of association. The degree of relevance indicates the degree of similarity and degree of relevance to a combination of image information, title information, and description information arranged on the left side. In other words, the degree of association is an index indicating to what degree of similarity each piece of image information, title information, and description information is likely to be linked. It indicates the accuracy in selecting the probable, most suitable, similarity. In the example of FIG. 10, w13 to w22 are shown as association degrees. These w13 to w22 are shown in 10 levels as shown in Table 1 below. The closer to the point, the lower the degree of correlation between each combination as an intermediate node and the output.

The virtual item exhibition management device 1 acquires in advance the degrees of association w13 to w22 of three or more levels shown in FIG. In other words, the virtual item exhibition management device 1 accumulates past data such as image information, title information, description information, and the appropriate degree of similarity in that case in order to determine an actual search solution. By analyzing these, the degree of association shown in FIG. 10 is created.

The node 61c is a combination of the image information P12, the title information P15, and the descriptive text information P21.

Further, the degree of association shown in FIG. 10 may be composed of nodes of a neural network in artificial intelligence. That is, the weighting coefficients for the outputs of the nodes of this neural network correspond to the degrees of association described above. Moreover, it is not limited to a neural network, and may be composed of all decision-making factors that constitute artificial intelligence.

Such a degree of association becomes learned data in terms of artificial intelligence. After creating such learned data, when actually trying to obtain the degree of similarity for one virtual item, the above-described learned data is used to estimate the degree of similarity. In such a case, image information, title information, and description information are newly acquired from one virtual item for which the degree of similarity is actually to be obtained.

Similarity is searched based on the image information, title information, and description information newly acquired in this way. In such a case, reference is made to three or more stages of association degrees shown in FIG. 10 (Table 1) obtained in advance. For example, when the newly acquired image information is P12, title information P15, and description information P21, it is associated with node 61c, and this node 61c has a similarity w17 of 60% and a similarity of 45%. are associated with a degree of association w18. In such a case, the 60% with the highest degree of association is selected as the optimal similarity solution. However, it is not essential to select the one with the highest degree of association as the optimum solution, and a similarity of 45%, which has a low degree of association but still recognizes the association itself, may be selected as the optimum solution. In addition, it is of course possible to select an output solution that is not connected by an arrow, and any other priority may be used as long as it is based on the degree of association.

Table 2 below shows examples of degrees of association w1 to w12 extending from the input.

Intermediate nodes 61 may be selected based on degrees of association w1 to w12 extending from this input. In other words, the greater the degree of association w1 to w12, the heavier the weight in selecting the intermediate node 61 may be. However, the degrees of association w1 to w12 may all have the same value, and the weighting in selecting the intermediate nodes 61 may all be the same.

By using artificial intelligence in this way, it is possible to determine the degree of similarity with high accuracy.

1 virtual item exhibition management device 2 control device 3 block chain unit 4 block chain network 5 user terminal 5 a user terminal 5 b user terminal 5 c user terminal 6 database 7 exhibition reception management unit 10 housing 14 storage unit 18 internal bus 19 output unit 20 control Application 20 Input unit 24 Storage unit 26 Transmission/reception unit 27 Judgment unit 31 Blockchain control unit 32 Metadata generation unit 33 Encryption unit 34 Electronic signature unit 40 Public communication network 40c Blockchain network 41 Head mounted unit 41a Right frame 41b Left frame 42 video display unit 43 headphone 44 imaging unit 58 power switch 59 motion sensor 60 microphone 61 intermediate node 62 display panel 65 operation unit 65a key

Claims (4)

an exhibition acceptance step of accepting an exhibition of a virtual item utilized in a virtual environment expressed via a user terminal;
A recording step of recording the newly exhibited virtual item in a block connected by a blockchain built in the network each time a new exhibit is accepted by the above-mentioned exhibit acceptance step;
a similarity determination step of determining similarity with the virtual item recorded in the recording step;
causing a computer to execute an evaluation step of evaluating each virtual item based on the degree of similarity determined through the similarity determination step;
In the evaluation step, among the virtual items whose similarities determined through the similarity determination step exceed a threshold value, a higher evaluation is set for the virtual item recorded earlier.
A virtual item exhibition reception program characterized by. an exhibition acceptance step of accepting an exhibition of a virtual item utilized in a virtual environment expressed via a user terminal;
A recording step of recording the newly exhibited virtual item in a block connected by a blockchain built in the network each time a new exhibit is accepted by the above-mentioned exhibit acceptance step;
a similarity determination step of determining similarity with the virtual item recorded in the recording step;
Among the virtual items whose degree of similarity determined through the similarity determination step exceeds the threshold, the degree of promoting sales through the network of the virtual item recorded earlier than that of the virtual item recorded later A virtual item exhibition acceptance program characterized by causing a computer to execute a sales promotion step of setting a high value . an exhibition acceptance step of accepting an exhibition of a virtual item utilized in a virtual environment expressed via a user terminal;
Each time a new exhibition is accepted by the above-mentioned exhibition acceptance step, the similarity between the newly exhibited virtual item and other virtual items already recorded in the blocks connected by the blockchain built in the network a similarity determination step of determining the degree of
causing a computer to execute a recording control step of determining whether or not to record the newly exhibited virtual item in a block based on the similarity determined through the similarity determination step ;
In the recording control step, when it is determined that the determined similarity exceeds the threshold, processing is performed so that this is not recorded in the block, and when it is determined that the similarity is equal to or less than the threshold, Perform processing to record this in a block,
further comprising a promotion step of setting a higher degree of promotion over the network for the virtual item recorded in the block than for virtual items recorded later.
A virtual item exhibition reception program characterized by. an exhibition acceptance means for accepting an exhibition of a virtual item utilized in a virtual environment expressed via a user terminal;
a recording means for recording the newly exhibited virtual item in a block connected by a blockchain constructed in the network each time a new exhibition is accepted by the exhibition acceptance means;
a similarity determination means for determining similarity with the virtual item recorded by the recording means;
Among the virtual items whose degree of similarity determined by the degree of similarity determination means exceeds the threshold value, the degree of promoting sales via the network of the virtual item recorded earlier than that of the virtual item recorded later A virtual item exhibition acceptance system characterized by comprising sales promotion means for setting a high value .

Images