JP2010128970A - Content retrieval device, and method for retrieval of content in the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a content retrieval device that finds desired content with a fewer operations from among multiple pieces of content listed and presented, and achieving better user's experience, and to provide a method for retrieval of content in the content retrieval device. <P>SOLUTION: The device displays a content list in the descending order of total importance of content, which is calculated from a keyword importance 105 included in keyword information 103 registered in a keyword database 102, and a content importance 110 included in content information 107 registered in a content database 106. Thereby, a user can expect that the retrieved content can be listed in order from the content in which the user is interested. Accordingly, the user can find the desired content with a fewer operations and a short time from among the content listed and presented, thereby achieving better user's experience. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a content search device and a content search method of the content search device.

  In recent years, content distribution sites such as YouTube (registered trademark) have appeared that accumulate content on a server and distribute the content to users who have accessed the server. These content distribution sites can accept input of keywords, search for content stored in the server using the accepted keywords, and present a list of searched content. For example, Patent Literature 1 proposes an information search method for displaying a list of content search histories in the order in which search by a searcher's search operation is executed.

JP 2001-109752 A

  However, the information search method described in Patent Document 1 described above cannot display a list of content search history in consideration of which content is more interesting to the user among the searched content. . Therefore, as the number of searched contents increases, the contents that the user is interested in become the later order, and the user can search for desired contents by eye or display that cannot be displayed on the screen. It is necessary to scroll the contents many times.

  In particular, digital home appliances (especially TVs) do not have the habit of viewing as close as PCs (Personal Computers), so a UI (User Interface) that allows users to read large amounts of small thumbnails and text information is suitable. Absent. In addition, digital home appliances generally have a lower screen display capability than PCs, and often require time to scroll. For this reason, when the number of contents to be searched is small, such as when searching for contents from an HDD (Hard Disk Drive) that records the contents included in the broadcast wave, the above information search method can also be used. The above-described information search method cannot be said to be a user-friendly UI (User Interface) when the number of searched contents is large, such as when searching for contents stored in the server of the above content distribution site. There is.

  The present invention has been made in view of the above, and it is possible to reach a desired content from a list of displayed contents with a small number of operations, thereby realizing a better user experience. It is an object to provide a content search device and a content search method.

  In order to solve the above-described problems and achieve the object, the present invention receives an input of a keyword used for searching for content, and accepting means for creating keyword information including the accepted keyword and the keyword importance of the keyword; A first storage unit that stores the keyword information created by the reception unit, and a content search using a keyword included in the keyword information stored in the first storage unit to identify the searched content Search means for creating content information including identification information, a keyword used for searching for the content, and content importance of the content, second storage means for storing the content information created by the search means, and searching Stored in the second storage means in response to a content list display request The content importance included in each content information, and the keyword importance included in the keyword information including the keyword included in the content information among the keyword information stored in the first storage unit The total importance of the content identified by the identification information included in each content information is calculated, and included in each content information stored in the second storage unit according to the calculated total importance Display means for displaying a list of the contents identified by the identification information.

  The present invention is also a content search method of a content search device, wherein the content search device stores first keyword information including a keyword used for searching for content and keyword importance of the keyword, A second storage unit for storing content information including identification information for identifying the searched content, a keyword used for searching the content, and the content importance of the content, and the receiving unit searches for the content. Receiving an input of a keyword used for the keyword, creating the keyword information including the accepted keyword and the keyword importance of the keyword, and registering the keyword information in the first storage unit; and a search unit, the first storage unit Content using keywords included in the keyword information stored in A search step of searching, creating the content information including the identification information of the searched content, a keyword used for searching the content, and the content importance of the content, and registering the content information in the second storage unit; In response to a display request for a list of searched contents, the content importance level included in each content information stored in the second storage means and the keyword information stored in the first storage means Among them, from the keyword importance included in the keyword information including the keyword included in each content information, the total importance of the content identified by the identification information included in each content information is calculated, Each content information stored in the second storage means according to the calculated total importance A display step of displaying a list of the content identified by the identification information included, characterized by having a.

  According to the present invention, a list of searched contents can be expected to be displayed in order from the contents that the user is interested in, so that the desired contents can be reached with a small number of operations from the contents presented in the list. It is possible to achieve a better user experience.

  Exemplary embodiments of a content search device and a content search method of the content search device according to the present invention will be explained below in detail with reference to the accompanying drawings. In the present embodiment, an example in which the content search device according to the present invention and the content search method of the content search device are applied to TV (Television) will be described, but a list of content searched using keywords is displayed. If it has the function to do, it is not limited to this. For example, the present invention can be applied to a PC (Personal Computer).

(First embodiment)
FIG. 1 is a block diagram showing a configuration of a TV according to the first embodiment. The TV 100 according to the present embodiment includes a storage unit 101, an input unit 113, a control unit 114, a display unit 115, and a network interface unit 116.

  The storage unit 101 stores various types of information, and includes a keyword database (first storage means) 102 such as a non-volatile semiconductor memory such as NV (Non Volatile) -RAM (Random Access Memory) and an HDD (Hard Disk Drive). ) And other content databases (second storage means) 106. In this embodiment, a semiconductor memory is used for the keyword database 102 and an HDD is used for the content database 106. However, the present invention is not limited to this. For example, an HDD may be used for the keyword database 102 and a semiconductor memory may be used for the content database 106.

  The keyword database 102 stores the keyword 104 used for content search and the keyword information 103 that corresponds to each keyword 104 on a one-to-one basis and includes the keyword importance 105 that represents the importance of each keyword 104 by a numerical value or the like. It is. Note that the keyword information 103 corresponds to each keyword on a one-to-one basis.

  The content database 106 is for identifying the searched content using the keyword information 103 stored in the keyword database 102, and the searched content of the searched content on the web (or on the TV 100 according to the present embodiment). An identifier 108 that is a character string for identifying a position, etc., information that accompanies the searched content on the web, and that represents the content in the content, such as the date and time of creation, creator, data format, title, and annotation The metadata 109, the retrieved content 111 corresponding to the retrieved content on a one-to-one basis, the importance of each content represented by a numerical value or the like, and the reproduced flag 111 indicating whether or not the retrieved content has already been reproduced. And the keyword used to search for the searched content Stores the content information 107 including the de 112. The played flag 111 indicates a “true” value when the searched content has been played, and indicates a “false” value when the searched content is not played.

  The input unit 113 receives an operation input by a user such as a remote controller, a keyboard, a mouse, and a touch screen.

  The display unit 115 displays a searched content list screen, content playback screen, and the like, such as a CRT (Cathode Ray Tube) and an LCD (Liquid Crystal Display).

  The network interface unit 116 is for accessing a web such as a content distribution site via the network 117.

  The control unit 114 includes a reception unit 121, a search unit 122, a list display unit 123, a playback unit 124, and an update unit 125, and controls each unit described above. Hereinafter, specific functions of each unit included in the control unit 114 will be described.

  First, a keyword registration process performed by the reception unit 121 will be described with reference to FIG. FIG. 2 is a flowchart showing the procedure of the keyword registration process.

  First, the reception unit 121 receives an input of a keyword received by the input unit 113 (step S201), and determines whether or not the keyword information 103 including the input keyword is registered (stored) in the keyword database 102. (Step S202).

  Then, when the reception unit 121 determines that the keyword information 103 including the keyword for which the input has been received is not registered in the keyword database 102 (step S202: No), the reception unit 121 has received the input of the keyword 104 and the input. Keyword information 103 including keyword importance 105: “1” (initial value) is created (step S203). Next, the reception unit 121 registers the created keyword information 103 in the keyword database 102 (step S204).

  If the receiving unit 121 determines that the keyword information 103 including the keyword 104 that has received the input is registered in the keyword database 102 (step S202: Yes), the receiving unit 121 sets the keyword information 103 including the keyword that has received the input. The included keyword importance 105 is raised to “1” (initial value), and the updated keyword importance 105 is reflected in the keyword database 102 (step S205).

  Next, content search processing by the search unit 122 will be described with reference to FIG. FIG. 3 is a flowchart showing a procedure of content search processing. In the present embodiment, it is assumed that the search unit 122 executes the following content search process at predetermined time intervals. In the present embodiment, the content search process is executed every predetermined time. However, the present invention is not limited to this. For example, the search unit 122 may perform content search processing in accordance with the operation input received by the input unit 113.

  First, the search unit 122 acquires unprocessed keyword information 103 that is not used for content search from the keyword database 102 (step S301), and determines whether or not the unprocessed keyword information 103 has been acquired (step S301). Step S302). When the unprocessed keyword information 103 cannot be acquired (step S302: No), the search unit 122 searches for content using the keywords 104 included in all the keyword information 103 stored in the keyword database 102. It is determined that the process has been executed, and the content search process is terminated.

  On the other hand, when the unprocessed keyword information 103 can be acquired (step S302: Yes), the search unit 122 accesses a content distribution site such as You Tube (registered trademark) via the network interface unit 116, and the content The content related to the keyword 104 included in the acquired keyword information 103 is searched from the content stored in the server of the distribution site, and the identifier and metadata of the searched content are acquired (step S303). Note that, when there are a plurality of contents related to the keyword, the search unit 122 acquires identifiers and metadata of the plurality of contents.

  Then, the search unit 122 acquires one content identifier and metadata as a new search result from the acquired content identifier and metadata (step S304). In addition, the search part 122 returns to the acquisition process of the unprocessed keyword information 103 shown to step S301, when a new search result cannot be acquired (step S305: No).

  If the search unit 122 can acquire a new search result (step S305: Yes), whether or not the content information 107 including the identifier and metadata of the content that is the new search result is registered (stored) in the content database 106. Is determined (step S306). If the content information 107 including the content identifier and metadata as the new search result is registered in the content database 106 (step S306: Yes), the search unit 122 acquires the new search result shown in step S304. Return to.

  That is, since the search unit 122 repeats the content search process every predetermined time, the content database 106 may already include content information 107 indicating the same search result as the content search result obtained by the previous search process. is there. Therefore, in order to prevent duplicate registration of the content information 107, the search unit 122, when the content information 107 including the content identifier and metadata as a new search result has already been registered in the content database 106, the new search The content information 107 including the content identifier and metadata as a result is not registered in the content database 106.

  On the other hand, when the content information 107 including the content identifier and metadata as the new search result is not registered in the content database 106 (No in step S306), the search unit 122 determines the content identifier 108 as the new search result. In addition to the metadata 109, the keyword 112 used for searching the content, the content importance 110 of the content: “1” (initial value), and a played flag 111 indicating that the content is not played: “ The content information 107 including “false” is created (step S307).

  Then, the search unit 122 registers the created content information 107 in the content database 106 (step S308), and returns to the new search result acquisition process shown in step S304.

  Next, a list display process of searched contents by the list display unit 123 will be described with reference to FIG. FIG. 4 is a flowchart showing a procedure of content list display processing.

  First, the list display unit 123 acquires one piece of unprocessed content information 107 that has not been subjected to calculation of the overall importance, which will be described later, from the content information 107 registered in the content database 106 (step S401). When the unprocessed content information 107 can be acquired (step S402: Yes), the list display unit 123 includes the keyword information 103 including the same keyword 104 as the keyword 112 included in the acquired content information 107 from the keyword database 102. And keyword importance 105 included in the searched keyword information 103 is acquired (step S403).

  Next, the list display unit 123 calculates the sum of the content importance 110 included in the acquired content information 107 and the acquired keyword importance 105 as the total importance of the content (step S404). In the present embodiment, the list display unit 123 calculates the sum of the content importance 110 and the keyword importance 105 as the total importance of the content identified by the identifier included in the acquired content information 107. As long as the total importance is calculated from the content importance 110 and the keyword importance 105, the present invention is not limited to this, and the total importance of the content may be calculated by another calculation method.

  When the calculation of the total importance for all the content information 107 registered in the content database 106 is completed (step S402: No), the list display unit 123 increases the total importance calculated for each content information 107 in descending order. A list of contents in which the metadata 109 included in each content information 107 is arranged is displayed on the display unit 115 (step S405). In the present embodiment, the list display unit 123 displays a list of contents in which the metadata 109 is arranged in descending order of overall importance. However, the list display unit 123 is not limited thereto as long as it displays a list of contents according to the overall importance. Not what you want.

  Next, update processing of the keyword importance level 105 and the content importance level 110 by the update unit 125 will be described with reference to FIG. FIG. 5 is a flowchart showing a procedure for updating the keyword importance level and the content importance level. In the present embodiment, the update unit 125 executes the update process of the keyword importance level 105 and the content importance level 110 every predetermined time, but the present invention is not limited to this. For example, the update unit 125 may execute update processing of the keyword importance level 105 and the content importance level 110 in accordance with the operation input received by the input unit 113.

  First, the update unit 125 acquires one piece of unprocessed content information that has not been updated for the content importance 110 from the content information 107 registered in the content database 106 (step S501). Then, when one piece of unprocessed content information 107 can be acquired (step S502: Yes), the update unit 125 acquires the reproduced flag 111 included in the acquired content information 107, and the acquired reproduced flag 111 is acquired. It is determined whether or not the indicated value is “true” (step S503). If the value indicated by the acquired reproduced flag 111 is “true” (step S503: Yes), the updating unit 125 performs an update process on the keyword importance level 105 and the content importance level 110 related to the acquired content information 107. The process ends, and the process returns to the acquisition process of the unprocessed content information 107 shown in step S501.

  On the other hand, when the value indicated by the acquired played flag 111 is “false” (step S503: No), the update unit 125 updates the content importance 110 included in the acquired content information 107 by 0.1. The content importance 110 is reflected in the content database 106 (step S504). Further, the update unit 125 acquires the keyword 112 included in the acquired content information 107 (step S505), and the keyword information 103 including the acquired keyword 112 is acquired from the keyword information 103 registered in the keyword database 102. Obtain (step S506).

  Then, the update unit 125 lowers the keyword importance 105 included in the acquired keyword information 103 by 0.01, and reflects the updated keyword importance 105 in the keyword database 102 (step S507). The update unit 125 performs the update processing of the content importance 110 and the keyword importance 105 for all the content information 107 registered in the content database 106 (step S502: No), and then the content importance 110 and the keyword importance. The update process 105 ends.

  Next, content reproduction processing by the reproduction unit 124 will be described with reference to FIG. FIG. 6 is a flowchart showing a procedure of content reproduction processing. In the present embodiment, an example in which content is reproduced in the TV 100 as its own device will be described, but it is not always necessary to reproduce content in its own device. However, in order to update the content information 107 and the keyword information 103 according to the content reproduction process, it is necessary to detect the content reproduction process executed by another device.

  First, the playback unit 124 accesses a content distribution site such as You Tube (registered trademark) via the network interface unit 116, and the content information 107 selected from the content information 107 registered in the content database 106. The content at the position identified by the identifier included in is acquired, and reproduction of the acquired content is started (step S601).

  Next, the playback unit 124 changes the value of the played flag 111 included in the content information 107 of the played content out of the content information 107 registered in the content database 106 to “true”, and the changed played back The flag 111 is reflected in the content database 106 (step S602).

  Further, the playback unit 124 acquires the keyword 112 included in the content information 107 of the played content (step S603). Then, the playback unit 124 searches the keyword information 103 including the acquired keyword from the keyword information 103 registered in the keyword database 102, and sets the keyword importance 105 included in the searched keyword information 103 to 0.1. The keyword importance 105 updated and updated is reflected in the keyword database 102 (step S604).

  Next, an overall process in which the control unit 114 executes each process shown in FIGS. 2 to 6 will be described with reference to FIG. FIG. 7 is a flowchart showing a procedure of overall processing for executing each processing shown in FIGS. In the present embodiment, an example in which the following process is executed in response to an operation input from the user received by the input unit 113 will be described. However, the conditions for executing the following process are limited to this. Not what you want.

  First, the control unit 114 waits for an operation input from the user by the input unit 113 (step S701). Then, when the control unit 114 receives an operation input from the user via the input unit 113 (step S701: Yes), the control unit 114 determines whether the operation input from the user requests a keyword registration process (step S701). S702).

  Here, when the operation input from the user requests a keyword registration process (step S702: Yes), the control unit 114 executes the keyword registration process (shown in FIG. 2) by the reception unit 121. (Step S703).

  On the other hand, when the operation input from the user does not request the keyword registration process (step S702: No), the control unit 114 requests the content list display process. Whether or not (step S704).

  Here, when the operation input from the user requests the content list display process (step S704: Yes), the control unit 114 displays the content list display process by the list display unit 123 (shown in FIG. 4). Is executed (step S705).

  On the other hand, when the operation input from the user does not request the content list display process (step S704: No), the control unit 114 requests the content reproduction process. Whether or not (step S706).

  Here, when the operation input from the user requests the content reproduction process (step S706: Yes), the control unit 114 executes the content reproduction process (shown in FIG. 6) by the reproduction unit 124. (Step S707).

  Further, the control unit 114 does not receive an operation input from the user by the input unit 113 (step S701: No), and a predetermined time has elapsed since the previous update processing of the keyword importance degree 105 and the content importance degree 110 (step S701). S708: Yes), update processing of the keyword importance 105 and content importance 110 (shown in FIG. 5) by the updating unit 125 (shown in FIG. 5) is executed (step S709), and content search processing by the searching unit 122 (shown in FIG. 3). Is executed (step S710).

  Note that the control unit 114 waits for input of an operation input from the user by the input unit 113 until a predetermined time has elapsed since the previous update processing of the keyword importance level 105 and the content importance level 119 (step S708: No). (Step S701).

  Next, with reference to FIG. 8, a description will be given of the temporal change of the keyword importance 105 included in the keyword information 103 registered in the keyword database 102 and the content importance 110 included in the content information 107 registered in the content database 106. To do. FIG. 8 is a diagram illustrating an example of temporal changes in keyword importance and content importance.

  First, when receiving the input of the keyword 104 received by the input unit 113, the receiving unit 121 registers the keyword information 103 including the keyword 104 and the keyword importance 105: “1” (initial value) in the keyword database 102 ( (Indicated by reference numeral 801).

  The search unit 122 performs a content search process using the keyword 104 included in the keyword information 103, and when the first content is searched (indicated by reference numeral 802), the content importance 110: “1” (initial) Content information 107 including (value) is registered in the content database 106. Further, after a predetermined time, the search unit 122 performs a content search process using the keyword 104 included in the keyword information 103, and when the second content is searched (indicated by reference numeral 803), the content importance 110 : Register the content information 107 including “1” (initial value) in the content database 106.

  The keyword importance 105 included in the keyword information 103 registered in the keyword database 102 decreases with time due to the updating process of the keyword importance 105 by the update unit 125, but the reproduction of the first content by the reproduction unit 124 is performed. And it is increased again by the reproduction of the second content (indicated by reference numerals 804 and 805).

  Note that the content importance level 110 included in the content information 107 registered in the content database 106 decreases as time elapses due to the update processing of the content importance level 110 by the update unit 125.

  The keyword registration process, content search process, content list display process, keyword importance and content importance update process, content reproduction process, and overall process executed by the control unit 114 described above are as follows. Provided in advance in a ROM or the like.

  The program executed by the control unit 114 is an installable or executable file and can be read by a computer such as a CD-ROM, a flexible disk (FD), a CD-R, or a DVD (Digital Versatile Disk). You may comprise so that it may record and provide on a medium.

  Further, the program executed by the control unit 114 may be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network. The program executed by the control unit 114 may be provided or distributed via a network such as the Internet.

  The program executed by the control unit 114 has a module configuration including the above-described units (reception unit, search unit, list display unit, playback unit, update unit), and the actual hardware is a CPU (processor). By reading and executing the program from the ROM, the above-described units are loaded onto the main storage device, and a reception unit, a search unit, a list display unit, a playback unit, and an update unit are generated on the main storage device. ing.

  Thus, according to TV 100 according to the present embodiment, keyword importance 105 included in keyword information 103 registered in keyword database 102 and content importance included in content information 107 registered in content database 106. 110. By displaying a list of contents in descending order of the overall importance of each content calculated from 110, it can be expected that the list of searched contents will be displayed in order from the content that the user is interested in. The desired content can be reached in a short operation and in a short time from the contents presented in the list, and a better user experience can be realized.

  In addition, the keyword importance 105 included in the keyword information 103 registered in the keyword database 102 is lowered with the passage of time, and is increased again by the content reproduction process, so that the keyword (the user's interest) included in the recently reproduced content is increased. Keywords that are related to the keywords you ’re interested in) are displayed at the top of the list of searched content and are included in the content that has not been played (that is, keywords that the user is not interested in) Since the content related to can be displayed in the lower part of the searched content list, the user can register the keyword that he is interested in in the keyword database 102 and play the content that seems interesting at any time. Raise degree 105 Or changing the retrieved display order of the list of content, even without an explicit operation such as a list of the searched content, it can be displayed in order from the content that the user is interested.

(Modification 1)
This modification is an example in which the function of each unit included in the TV 100 according to the above-described embodiment is divided between a server of the content distribution site and a client terminal (for example, a TV) that receives content distribution from the content distribution site. . The description of the same configuration as that of the first embodiment is omitted, and only the configuration different from that of the first embodiment will be described. Moreover, although this modification demonstrates the example which divided | segmented the function of each part with which TV100 concerning the above-mentioned embodiment was provided by the server and the client terminal, it is not limited to this. For example, the functions of the units included in the TV 100 according to the above-described embodiment can be divided by a client terminal and a terminal that relays content between the server and the client terminal.

  FIG. 9 is a block diagram illustrating a configuration of a server / client system according to the first modification. The server 901 includes a storage unit 101 and a network interface unit 903. The server 901 exchanges various information such as the keyword information 103 and the content information 107 between the storage unit 101 and the client terminal 902 via the network interface unit 903.

  On the other hand, the client terminal 902 includes an input unit 113, a control unit 114, a display unit 115, and a network interface unit 116. The control unit 114 of the client terminal 902 exchanges various information such as the keyword information 103 and the content information 107 with the storage unit 101 provided in the server 901 via the network interface unit 903.

  As described above, according to the present modification, even when the functions of the units included in the TV 100 according to the first embodiment are divided by the server 901 and the client terminal 902, the TV 100 according to the first embodiment Since the same function can be obtained, the same effect as in the first embodiment can be obtained.

It is a block diagram which shows the structure of TV concerning 1st Embodiment. It is a flowchart which shows the procedure of the registration process of a keyword. It is a flowchart which shows the procedure of the search process of content. It is a flowchart which shows the procedure of a content list display process. It is a flowchart which shows the procedure of the update process of keyword importance and content importance. It is a flowchart which shows the procedure of the reproduction | regeneration processing of a content. It is a flowchart which shows the procedure of the whole process which performs each process shown to FIGS. It is a figure which shows an example of the time change of keyword importance and content importance. It is a block diagram which shows the structure of the server / client system concerning the modification 1.

Explanation of symbols

100 TV
DESCRIPTION OF SYMBOLS 101 Memory | storage part 102 Keyword database 106 Content database 121 Reception part 122 Search part 123 List display part 124 Playback | regeneration part 125 Update part

Claims (4)

Accepting means for accepting an input of a keyword used for content search, and creating keyword information including the accepted keyword and the keyword importance of the keyword;
First storage means for storing the keyword information created by the reception means;
The content is searched using a keyword included in the keyword information stored in the first storage means, the identification information for identifying the searched content, the keyword used for searching the content, and the content importance of the content Search means for creating content information including
Second storage means for storing the content information created by the search means;
In response to a display request for a list of searched contents, the content importance level included in each content information stored in the second storage unit and the keyword information stored in the first storage unit The total importance of the content identified by the identification information included in the content information is calculated from the keyword importance included in the keyword information including the keyword included in each content information, and the calculated importance Display means for displaying a list of the contents identified by the identification information included in each content information stored in the second storage means in accordance with the total importance;
A content search apparatus comprising:   The keyword identified by the identification information included in the content information stored in the second storage means is reproduced, and the keyword included in the content information among the keyword information stored in the first storage means The content search apparatus according to claim 1, further comprising a reproducing unit that increases the degree of keyword importance included in the keyword information including.   Of the content information stored in the second storage means, the content importance included in the content information including the identification information for identifying content that has not been reproduced is reduced and stored in the first storage means. The content search apparatus according to claim 1, further comprising an updating unit that lowers the keyword importance included in the keyword information including the keyword included in the content information among the keyword information. . A content search method for a content search device, comprising:
The content search device includes a first storage unit that stores keyword information including a keyword used for content search and keyword importance of the keyword, identification information for identifying the searched content, and search for the content. Second storage means for storing content information including the keyword and the content importance of the content,
An accepting step for accepting an input of a keyword used for content search, creating the keyword information including the accepted keyword and the keyword importance of the keyword, and registering the keyword information in the first storage unit;
The search means searches for content using a keyword included in the keyword information stored in the first storage means, the identification information of the searched content, the keyword used for searching the content, and the content important of the content A search step of creating the content information including a degree and registering the content information in the second storage unit;
In response to a display request for a list of searched contents by the display unit, the content importance level included in each content information stored in the second storage unit and the keyword information stored in the first storage unit The total importance of the content identified by the identification information included in the content information is calculated from the keyword importance included in the keyword information including the keyword included in the content information. A display step of displaying a list of the contents identified by the identification information included in each piece of content information stored in the second storage unit according to the calculated total importance.
A content search method for a content search apparatus, comprising:

Images