Management device of comment about investment object

Abstract

To make it possible to easily confirm mentions or the like to an increase in the number of local comments or a specific price fluctuation in an electronic bulletin board to which the comments about an investment object are submitted.SOLUTION: A management device 10 for managing comments submitted to an electronic bulletin board about investment objects includes a management unit 160a, a totalization unit 160b, and a display control unit 160c. The management unit 160a associates a comment submitted to the electronic bulletin board with a submission time to manage the comment. The totalization unit 160b totalizes the number of submitted comments managed by the management unit 160a in each time section of prescribed time length. The display control unit 160c makes a terminal device 20 display the number of submitted comments in each time section among the number of submitted comments in each time section totalized by the totalization unit 160b in association with a graph representing price movement of an investment object.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a management device for comments related to investment targets. [Background technology]

[0002] In recent years, communication between users via electronic bulletin boards has become common. One example of this type of electronic bulletin board is the stock price bulletin board disclosed in Patent Document 1. A stock price bulletin board is an electronic bulletin board intended for the exchange of information about stock (hereinafter referred to as "stocks") trading. On the stock price bulletin board, users such as investors post comments such as their thoughts or speculations about stock price movements for each stock brand. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-212780 Summary of the Invention [Problem to be solved by the invention]

[0004] On stock price bulletin boards, when the stock price of a stock fluctuates significantly within a short period of time, the number of comments posted about that stock may suddenly increase within a short period of time. Below, we will explain why a localized increase in the number of comments posted within a short period of time reflects increased user interest in the stock whose price has fluctuated significantly, i.e., market excitement, and can serve as useful information for identifying the cause of price fluctuations. However, on conventional electronic bulletin boards, posted comments are displayed in order of the earliest or latest posting time, making it difficult to grasp a localized increase in the number of comments. [Means for solving the problem]

[0005] A management device according to a preferred aspect of the present disclosure is a management device that manages comments posted on an electronic bulletin board related to an investment target, and includes a management unit, a counting unit, and a display control unit as follows: The management unit manages comments posted on the electronic bulletin board related to the investment target in association with the posting time; The counting unit counts the number of comments posted managed by the management unit for each time interval of a predetermined length; and the display control unit displays on a display device the number of comments posted in at least one time interval, out of the number of comments posted for each time interval counted by the counting unit, in association with a graph showing the price movement of the investment target. [Effects of the Invention]

[0006] According to the present disclosure, the number of comments posted for each time interval is tallied, and the number of comments posted in at least one time interval is displayed on a display device in association with a graph showing the price movements of the investment target, making it easy to understand local increases in the number of comments. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a diagram illustrating an example of the configuration of a management device 10 according to an embodiment of the present disclosure. [Figure 2] FIG. 10 is a diagram showing an example of a comment table TBL2. [Figure 3] FIG. 1 is a diagram for explaining candlesticks. [Figure 4] FIG. 10 is a diagram showing an example of a chart using candlesticks. [Figure 5] FIG. 10 is a diagram showing an example of displaying the number of comments in this embodiment. [Figure 6] 10 is a flowchart showing a processing flow in a storage mode operation. [Figure 7] 10 is a flowchart showing a processing flow in the operation in the display mode. DETAILED DESCRIPTION OF THE INVENTION

[0008] (A. Embodiment) FIG. 1 is a diagram illustrating an example configuration of a management device 10 according to an embodiment of the present disclosure. The management device 10 is a device included in a system that realizes an electronic bulletin board related to stock trading. The management device 10 manages comments posted on the electronic bulletin board related to stock trading for each stock brand. In addition to the management device 10, FIG. 1 also illustrates a terminal device 20 used by a user who uses the electronic bulletin board. The terminal device 20 in this embodiment is a smartphone, but may also be a personal computer or a tablet terminal.

[0009] Using an electronic bulletin board means posting comments on the electronic bulletin board and viewing comments posted on the electronic bulletin board. The management device 10 and the terminal devices 20 are connected to a communication network such as the Internet by wire or wirelessly. The management device 10 communicates with the terminal devices 20 via the communication network. By accessing the management device 10 using the terminal device 20, a user of the terminal device 20 can post comments on the electronic bulletin board related to stock trading and view posted comments.

[0010] 1, the management device 10 includes a communication device 130, a storage device 150, a processing device 160, and a bus 190. The communication device 130, each of the storage devices 150, and the processing device 160 are connected to one another by the bus 190 for communicating information. The bus 190 may be configured using a single bus, or may be configured using different buses for each device.

[0011] The communication device 130 is hardware (transmission / reception device) for communicating with other devices via a communication line, either wired or wirelessly. The communication device 130 is also called, for example, a network device, a network controller, a network card, or a communication module. Examples of other devices that communicate with the communication device 130 via a communication line include the terminal device 20 and a stock price server that distributes data indicating the trading status of each stock (the time when a trade was executed, the trade volume, and the trade price).

[0012] The storage device 150 is a recording medium readable by the processing device 160. The storage device 150 includes, for example, a nonvolatile memory and a volatile memory. The nonvolatile memory includes, for example, a ROM (Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), or an EEPROM (Electrically Erasable Programmable Read Only Memory). The volatile memory is, for example, a RAM (Random Access Memory). The nonvolatile memory of the storage device 150 stores a program PR1 that prominently exhibits the features of the present disclosure. The volatile memory of the storage device 150 is used as a work area when the program PR1 is executed. The program PR1 will be described in detail later.

[0013] Furthermore, a stock price table TBL1 and a comment table TBL2 are stored in the storage device 150. Although one stock price table TBL1 and one comment table TBL2 are shown in Fig. 1, the stock price table TBL1 and the comment table TBL2 are stored in the storage device 150 for each stock issue. In other words, one stock price table TBL1 and one comment table TBL2 are stored in the storage device 150 for each of a plurality of stocks.

[0014] The stock price table TBL1 stores data (data representing the time the trade was completed, the trade volume, and the trade price) obtained from the stock price server each time a stock trade is completed for a stock corresponding to the stock price table TBL1. The comment table TBL2 stores data relating to comments posted on an electronic bulletin board for a stock corresponding to the comment table TBL2. FIG. 2 is a diagram showing an example of the comment table TBL2. As shown in FIG. 2, the comment table TBL2 stores, in association with comment data representing the content of the comment, the posting time of the comment represented by the comment data and a user identifier uniquely identifying the user who posted the comment.

[0015] The processing device 160 includes one or more central processing units (CPUs). The one or more CPUs are examples of one or more processors. Each of the processors and CPUs is an example of a computer. When the processing device 160 is instructed to execute program PR1 by operating an input device (not shown), it reads program PR1 from non-volatile memory to volatile memory. Then, the processing device 160 executes program PR1 read into volatile memory. The processing device 160 operating in accordance with program PR1 functions as the management unit 160a, the counting unit 160b, and the display control unit 160c shown in FIG. 1. In other words, the management unit 160a, the counting unit 160b, and the display control unit 160c in FIG. 1 are software modules realized by operating the processing device 160 in accordance with software. The functions of the management unit 160a, the counting unit 160b, and the display control unit 160c are as follows.

[0016] The management unit 160a acquires the stock to which the comment is to be posted, comment data representing the comment, and the user identifier of the user using the terminal device 20 from the terminal device 20. Next, the management unit 160a associates the acquired comment data and user identifier with the time at which the comment data was acquired as the posting time, and writes the time in a comment table TBL2 corresponding to the stock to which the comment is to be posted, thereby managing the comment represented by the comment data.

[0017] The aggregation unit 160b accepts the specification of stocks (hereinafter referred to as target stocks) to be displayed as graphs showing stock price movements. The graph in this embodiment is a chart that uses figures called candlesticks to represent stock price fluctuations of the target stock over a time interval having a predetermined length of time, such as 1 minute, 5 minutes, 10 minutes, 15 minutes, 1 day, 1 week, or 1 month. FIG. 3 is a diagram for explaining candlesticks. There are two types of candlesticks: a bullish candle V1 and a bearish candle V2, as shown in FIG. 3. The opening price in FIG. 3 refers to the stock price of the target stock at the start time of the time interval corresponding to the candlestick. The closing price in FIG. 3 refers to the stock price of the target stock at the end time of the time interval. The high price in FIG. 3 refers to the highest stock price of the target stock during the time interval. The low price in FIG. 3 refers to the lowest stock price of the target stock during the time interval. FIG. 4 is a diagram showing an example of a chart using candlesticks. In the example shown in Figure 4, the stock price fluctuations of a target stock in each time interval from time t0 to time t10 are represented using candlesticks. Each time from time t0 to time t9 in Figure 4 is the start time of the time interval corresponding to the candlestick, and each time from time t1 to time t10 is the end time of the time interval corresponding to the candlestick.

[0018] The counting unit 160b counts the number of comments posted about the target stock managed by the management unit 160a (that is, comments whose comment data is stored in the comment table TBL2 of the target stock) for each time period.

[0019] The display control unit 160c causes the terminal device 20 to display, for each time interval, the number of comments posted for each time interval tallied by the tallying unit 160b in association with a graph showing the price fluctuations of the stock price of the target stock. The terminal device 20 is an example of a display device in the present disclosure. In this embodiment, when the number of comments posted in a time interval is equal to or greater than a preset threshold (e.g., 100), the display control unit 160c displays a speech bubble showing the number of comments posted in association with a candlestick corresponding to the time interval, thereby associating the number of comments posted in the time interval with the graph showing the price fluctuations of the stock price of the target stock.

[0020] For example, suppose that the stock price fluctuations of a target stock in each time interval from time t0 to time t10 are represented as shown in FIG. 4, and the number of comments posted is 250 only for the time interval starting at time t7 and ending at time t8, which is equal to or greater than the threshold. In this case, as shown in FIG. 5, the display control unit 160c causes the terminal device 20 to display a speech bubble F indicating the number of comments posted in the time interval starting at time t7 and ending at time t8, in association with a candlestick representing the price movement in that time interval. The number in the speech bubble F (in the example shown in FIG. 5, "+250") represents the number of comments posted. Furthermore, the icon ICO placed in the speech bubble F is a virtual button for instructing the terminal device 20 to display comments posted in the time interval corresponding to the speech bubble F. The icon ICO is not essential and may be omitted. Note that if there are multiple time intervals in which the number of comments posted in a time interval is equal to or greater than a preset threshold, a speech bubble representing the number of comments posted is displayed for each of those multiple time intervals.

[0021] Furthermore, the processing device 160 operating according to the program PR1 executes a storage mode operation when it receives from the terminal device 20 the stock for which a comment is to be posted, comment data representing the comment, and the user identifier of the user using the terminal device 20. Furthermore, the processing device 160 operating according to the program PR1 executes a display mode operation when it receives the designation of the target stock. The flow of processing executed by the processing device 160 in each of the storage mode and display mode operation modes is as follows.

[0022] 6 is a flowchart showing the flow of processing executed by the processing device 160 in the storage mode. As shown in FIG. 6, in the storage mode, the processing device 160 executes a management process SA110. In the management process SA110, the processing device 160 functions as a management unit 160a. In the management process SA110, the processing device 160 acquires from the terminal device 20 the stock to which the comment will be posted, comment data representing the comment, and the user identifier of the user using the terminal device 20. Next, in the management process SA110, the processing device 160 associates the time at which the comment data was acquired with the acquired comment data and user identifier as the posting time, and writes the associated data into a comment table TBL2 corresponding to the stock to which the comment will be posted.

[0023] 7 is a flowchart showing the flow of processing executed in the display mode by the processing device 160. As shown in FIG 7, in the display mode, the processing device 160 executes a counting process SB110 and a display control process SB120.

[0024] In the counting process SB110, the processing device 160 functions as a counting unit 160b. In the counting process SB110, the processing device 160 counts the number of comments posted about the target stock for each time interval by referring to the comment table TBL2. In the display control process SB120, the processing device 160 functions as a display control unit 160c. In the display control process SB120, the processing device 160 causes the terminal device 20 to display, for each time interval, the number of comments posted for each time interval counted in the counting process SB110 in association with a graph showing the price movement of the investment target.

[0025] As described above, according to this embodiment, the number of comments posted for the target stock is tallied for each time interval, and the number of comments posted in each time interval is displayed on the terminal device 20 in association with a graph showing the price movements of the investment target, making it easy to understand local increases in the number of comments.

[0026] (B: Transformation) The present disclosure is not limited to the above-described exemplary embodiments. Specific modified aspects are as follows. Two or more aspects selected arbitrarily from the following examples may be combined. (B-1: Variation 1) The investment target in the present disclosure is not limited to stocks, but may also be foreign exchange, virtual currency, investment trusts, etc. In addition, in the above embodiment, the number of comments posted on the target stock is tallied for each time period, but the number of comments posted on other stocks may be tallied, and the number of comments posted on the other stocks, along with the number of comments posted on the target stock, may be displayed on the terminal device 20 in association with a graph showing the price movements of the target stock. Specific examples of other stocks include stocks that are in a competitive relationship with the target stock, such as other companies in the same industry, stocks that are in a parent-subsidiary relationship, and business partners of the target stock. In addition, the number of comments posted on stocks in other fields different from the field to which the target stock belongs may be tallied, and the number of comments posted on the target stock, along with the number of comments posted on the other fields, may be displayed on the terminal device 20 in association with a graph showing the price movements of the target stock.

[0027] (B-2: Variation 2) In the above embodiment, the display control unit 160c displayed a balloon representing the number of comments posted within a time period in which the number of comments posted within that time period was equal to or greater than a threshold. However, the display control unit 160c may display a balloon representing the number of comments for all time periods without comparing the threshold with the number of posts, or may display a balloon representing the number of posts only for the time period in which the number of posts is the largest. Essentially, it is sufficient that the number of comments posted is displayed in association with a graph representing the price movement of the investment target for at least one time period. Furthermore, in an embodiment in which the threshold is compared with the number of posts, the threshold for determining whether to display or hide the number of posts may be different for the most recent time period and time periods other than the most recent time period. The most recent time period refers to a time period that does not include the current time and whose end time is closest to the current time. For example, if the time between time t3 and time t4 in FIG. 4 is the current time, the time period in which the disclosure time is time t2 and the end time is time t3 is the most recent time period. In this embodiment, the display control unit 160c causes the terminal device 20 to display the number of comments posted in association with a graph when the number of comments posted in a time period other than the most recent time period is equal to or greater than a first threshold th1. In contrast, for the most recent time period, the display control unit 160c causes the terminal device 20 to display the number of comments posted in association with a graph when the number of comments posted in the most recent time period is equal to or greater than a second threshold th2 that is smaller than the first threshold th1. Because the second threshold th2 is smaller than the first threshold th1, according to this embodiment, the number of comments posted in the most recent time period is more likely to be displayed compared to other time periods. This prevents the process of investors' growing interest in the target stock from being overlooked.

[0028] (B-3: Variation 3) In the above embodiment, the display or non-display of the number of posted comments was switched depending on whether the number of posted comments within a time period was equal to or greater than a threshold value. However, the display or non-display of the number of posts may also be switched depending on the magnitude of price fluctuations of the investment target within the time period. According to this aspect, it becomes easier to understand references to specific price fluctuations, such as price movements exceeding a threshold value. Furthermore, the display or non-display of the number of posts may also be switched depending on the trading volume (trading volume or trading amount) of the target stock within the time period.

[0029] (B-4: Variation 4) When displaying comments in response to an operation on the icon ICO, the display control unit 160c may preferentially display comments from specific users such as famous investors or famous influencers. Specifically, a management table that associates user identifiers of users whose comments are to be preferentially displayed with priority information indicating the priority of the users is stored in the storage device 150, and when the display control unit 160c detects an operation on the icon ICO, it reads out comments from users with high priorities indicated by the priority information stored in the management table from the comment table TBL2 and displays them on the terminal device 20.

[0030] (B-5: Variation 5) In the above embodiment, the management unit 160a, the counting unit 160b, and the display control unit 160c are software modules. However, any one, any two, or all of the management unit 160a, the counting unit 160b, and the display control unit 160c may be hardware modules. Specific examples of hardware modules include a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). Even if any one, any two, or all of the management unit 160a, the counting unit 160b, and the display control unit 160c are hardware modules, the same effects as those of the above embodiment can be achieved.

[0031] (B-5: Variation 5) In the above embodiment, the program PR1 is stored in the storage device 150 of the management device 10, but the program PR1 may also be manufactured or sold as a standalone program. When selling the program PR1, the program PR1 may be provided to a purchaser by writing the program PR1 to a computer-readable recording medium such as a flash ROM and distributing it, or by downloading it via a telecommunications line.

[0032] (C:Other) (1) In the above-described embodiment, ROM and RAM are exemplified as storage device 150, but storage device 150 may also be a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disc), a smart card, a flash memory device (e.g., a card, a stick, a key drive), a CD-ROM (Compact Disc-ROM), a register, a removable disk, a hard disk, a floppy (registered trademark) disk, a magnetic strip, a database, a server, or other suitable storage medium.

[0033] (2) In the above-described embodiments, the described information, signals, etc. may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0034] (3) In the above-described embodiment, input and output information may be stored in a specific location (for example, a memory) or may be managed using a management table. Input and output information may be overwritten, updated, or added to. Output information may be deleted. Input information may be transmitted to another device.

[0035] (4) In the above-described embodiment, the determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0036] (5) The order of the process procedures, sequences, flowcharts, etc. illustrated in the above-described embodiments may be rearranged unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0037] (6) Each function illustrated in FIG. 1 is realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are connected directly or indirectly (for example, by wire, wirelessly, etc.) and these multiple devices. A functional block may also be realized by combining software with the single device or the multiple devices.

[0038] (7) The programs exemplified in the above-described embodiments should be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., regardless of whether software is called software, firmware, middleware, microcode, hardware description language, or by other names.

[0039] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0040] (8) In the above embodiments, the terms "system" and "network" are used interchangeably.

[0041] (9) The information, parameters, etc. described in this disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or corresponding other information.

[0042] (10) In the above-described embodiments, the mobile terminal includes a mobile station (MS). A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate terminology. In this disclosure, terms such as "mobile station," "user terminal," "user equipment (UE)," and "terminal" may be used interchangeably.

[0043] (11) In the above-described embodiments, the terms "connected," "coupled," or any variation thereof refers to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using at least one of one or more wires, cables, and printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0044] (12) In the above embodiments, the phrase "based on" does not mean "based only on," unless otherwise specified. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0045] (13) As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching in a table, database, or other data structure), ascertaining, and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like. Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judgment" or "decision." In other words, "judgment" and "decision" can include regarding some action as having been "judgment" or "decision." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0046] (14) In the above embodiments, when "include," "including," and variations thereof are used, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, the term "or" as used in this disclosure is not intended to be an exclusive or.

[0047] (15) In this disclosure, where articles are added by translation, such as a, an, and the in English, this disclosure may include that the nouns following these articles are plural.

[0048] (16) In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combined" may also be interpreted in the same way as "different."

[0049] (17) Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Notification of predetermined information (e.g., notification that "X is true") is not limited to explicit notification, but may be implicit (e.g., not notifying the predetermined information).

[0050] (D: Aspects understood from the above-described embodiments or modifications) Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure. The following aspects can be understood from at least one of the above-described embodiments or modifications.

[0051] A management device according to a first aspect of the present disclosure is a management device that manages comments posted on an electronic bulletin board related to an investment target, and includes a management unit, a counting unit, and a display control unit as follows: The management unit manages comments posted on the electronic bulletin board related to the investment target in association with the posting time; The counting unit counts the number of comments posted managed by the management unit for each time interval of a predetermined length; and the display control unit displays, on a display device, the number of comments posted in at least one time interval, among the number of comments posted for each time interval counted by the counting unit, in association with a graph representing the price movement of the investment target. According to the management device of the first aspect, the number of comments posted for each time interval is counted, and the number of comments posted in at least one time interval is displayed on the display device in association with a graph representing the price movement of the investment target, making it easy to understand local increases in the number of comments.

[0052] The display control unit in the management device according to the second aspect (an example of the first aspect) of the present disclosure causes the display device to display the number of comments posted in association with the graph when the number of comments posted is equal to or greater than a first threshold for a time interval other than the most recent time interval among multiple time intervals, and causes the display device to display the number of comments posted in association with the graph when the number of comments posted in the most recent time interval is equal to or greater than a second threshold that is smaller than the first threshold. [Explanation of symbols]

[0053] 10...management device, 130...communication device, 150...storage device, 160...processing device, 160a...management section, 160b...counting section, 160c...display control section, 190...bus, PR1...program, TBL1...stock price table, TBL2...comment table.

Claims

1. a management unit that manages comments posted on an electronic bulletin board regarding an investment target in association with the posting time; a counting unit that counts the number of comments posted by the management unit for each time period of a predetermined length; a display control unit that causes a display device to display the number of comments posted in at least one time period among the number of comments posted for each time period tallied by the aggregation unit in association with a graph showing price fluctuations of the investment target; A device for managing comments about investment targets.

2. the display control unit causes the display device to display the number of comments posted in association with the graph when the number of comments posted in a time period other than a most recent time period among the plurality of time periods is equal to or greater than a first threshold, and causes the display device to display the number of comments posted in association with the graph when the number of comments posted in the most recent time period is equal to or greater than a second threshold that is smaller than the first threshold. The management device according to claim 1 .

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