JPH10124519A - Device for displaying information and device for retrieving information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply display the information of the sets of large among of keywords by hierarchically classifying and displaying the information of the sets of the large among of keywords according to the frequency of a common keyword. SOLUTION: The sets of keywords stored in a keyword set storing part 101 are inputted and stored in an objective keyword set storing means 102. The keywords whose appearing frequency is the maximum are selected as central keywords from among the keywords stored in the objective keyword storing means 102, and stored in a central keyword storing means 103. The sets of the keywords are classified into the set including the selected central keywords and the set which does not include the selected central keywords by an objective keyword set extracting means 104. Thus, the hierarchical structure of the keywords is constructed in a central keyword storing part 105. Then, the central keywords are hierarchically displayed in a display part 106, and an algorithm is ended.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information display device for displaying information characterized by a set of a plurality of keywords in a manner that is easy for a user to understand.

[0002]

2. Description of the Related Art With the reduction in price of large-capacity storage media and the spread of arithmetic processing devices capable of high-speed arithmetic processing, computerization of information has been promoted. In particular, regarding text information,
By encoding character information, high-speed retrieval of text information has become possible. Generally, text information is often characterized using a set of keywords. For example, the contents are often characterized by a set of keywords such as (computer, multimedia, search) as the keywords that characterize the text information of a certain specialized book. Even for text information composed of a large amount of text, by confirming these keywords, it is possible to confirm rough contents and recent information.

In recent years, receivers for text broadcasting in which character codes are transmitted as broadcasting have been developed and sold, and the text information transmitted to homes has been rapidly increasing. . 2. Description of the Related Art A function of extracting a keyword from a large amount of text information of a teletext broadcast being broadcast and expressing a content currently being broadcast by a group of keywords having a high appearance frequency is realized. By simply checking this keyword, it is possible to check the outline of the content of the information currently being broadcast.

[0004]

However, when the text information is further enlarged, even confirming the set of assigned keywords becomes a serious task.
Also, in the case of teletext, simply storing a set of keywords for daily information increases the number of sets of keywords, making it impossible to effectively use the stored information.

According to the present invention, in consideration of such a conventional problem, when a set of keywords is given, a hierarchical structure of keywords is automatically constructed from the contents of the set of keywords. This makes it possible to easily browse keyword information stored in a large amount, and further to easily confirm the outline of text information characterized by a set of those keywords. The purpose is to provide.

[0006]

According to the first aspect of the present invention, a keyword set storage unit storing a plurality of keyword sets, and a set of target keywords are extracted from the keyword set storage unit and stored. A target keyword set storage unit; a representative keyword extraction unit that extracts a common keyword from the set of keywords stored in the target keyword set storage unit as a representative keyword; and a representative keyword extracted by the representative keyword extraction unit. A target keyword set extracting unit that extracts a set of keywords as a target keyword set, a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extracting unit, and a representative keyword stored in the representative keyword storage unit. Information table characterized by having a representative keyword display section for displaying It is a device.

[0007] The information display device of the first invention is capable of hierarchically classifying and displaying information of a large set of keywords in accordance with the frequency of common keywords. This allows
A large amount of information on a set of keywords can be simply displayed.

According to the second invention, a keyword set storage unit storing a plurality of keyword sets, and a target keyword set storage unit extracting and storing target keyword sets from the keyword set storage unit. A representative keyword part extracting means for extracting a part of a partially common keyword from a set of keywords stored in the target keyword storage part, and a part of the keyword extracted by the representative keyword part extracting means. A target keyword set extracting unit that extracts a set of keywords as a target keyword set, a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extracting unit, and a representative keyword stored in the representative keyword storage unit. An information display device comprising a representative keyword display unit for displaying.

The information display apparatus according to the second aspect of the present invention can display a large amount of information on a set of keywords by classifying the set of keywords by a common keyword portion. This makes it possible to display a large amount of keyword information in a simple manner.

[0010] According to the third invention, a keyword set storage unit storing a plurality of keyword sets, and a target keyword set storage unit extracting and storing target keyword sets from the keyword set storage unit. , Multiple keywords 1
A concept keyword storage unit that stores concept keywords summarized by three concepts, a representative keyword determination unit that determines a concept keyword including a set of keywords stored in the target keyword group storage unit, and the representative keyword determination unit Target keyword set extraction means for extracting a set of keywords included in the concept keywords determined in the above as a target keyword set; a representative keyword storage unit for storing the concept keywords determined by the representative keyword determination means; An information display device comprising a display unit for displaying the concept keyword stored in the information display device.

The information display device according to the third aspect of the present invention can classify and display a large amount of information of a set of keywords by a new keyword expressing the same field. This allows
A large amount of information on a set of keywords can be simply displayed.

[0012] According to the fourth invention, a teletext receiver for receiving teletext, a text information converter for converting text broadcast received by the teletext receiver to text information, and a text information converter. A keyword cutout unit that cuts out a plurality of keyword sets from the converted text information and stores them in a keyword set storage unit, a keyword set storage unit that stores a plurality of keyword sets, and a target from the keyword set storage unit. A target keyword set storage unit that extracts and stores a set of keywords; a representative keyword extraction unit that extracts a common keyword as a representative keyword from a set of keywords stored in the target keyword set storage unit; The set of keywords including the representative keywords extracted in step 4 is set as the target keyword set. The system includes a target keyword set extraction unit to be extracted, a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extraction unit, and a representative keyword display unit that displays the representative keywords stored in the representative keyword storage unit. An information display device characterized in that:

The information display apparatus of the fourth invention expresses each article of teletext data by a set of keywords, and when a large amount of teletext data is accumulated, classifies and displays the contents based on the keywords. Thus, the contents can be easily confirmed.

According to the fifth aspect of the present invention, a teletext receiving section for receiving teletext, a text information converting means for converting text broadcast received by the receiving section into text information, and a text information converting means for converting the text information received by the text information converting means. A keyword set storage unit that cuts out and stores a plurality of sets of keywords from the text information, and a target keyword set storage unit that extracts and stores a set of target keywords from the keyword set storage unit.
Representative keyword extracting means for extracting a common keyword as a representative keyword from the keyword set stored in the target keyword set storage unit, and a keyword set including the representative keyword extracted by the representative keyword extracting means as a target keyword set A target keyword set extracting unit, a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extracting unit, and a representative keyword display unit that displays the representative keywords stored in the representative keyword storage unit. An information display comprising: keyword designation means for designating a keyword displayed on the representative keyword display section; and a text broadcast display section for displaying a text broadcast including the keyword designated by the keyword designation means. Device.

The information display apparatus of the fifth invention expresses each article of teletext data by a set of keywords, and when a large amount of teletext data is stored, classifies and displays the contents based on the keywords. . Further, by designating a keyword with an input device such as a mouse, a teletext including the keyword can be displayed.
Thus, the contents of the stored teletext can be easily confirmed.

According to the sixth invention, a text broadcast receiving section for receiving a text broadcast, a text information converting means for converting the text broadcast received by the receiving section into text information, and a text information converted by the text information converting means. A keyword set storage unit that cuts out and stores a plurality of keyword sets from the extracted text information, a target keyword set storage unit that extracts and stores target keyword sets from the keyword set storage unit, and a target keyword set storage unit. Representative keyword extracting means for extracting a common keyword as a representative keyword from a stored set of keywords, and a target keyword set extraction for extracting a keyword set including the representative keywords extracted by the representative keyword extracting means as a target keyword set Means, the representative keyword extracted by the representative keyword extracting means, And a representative keyword display unit for displaying a representative keyword stored in the representative keyword storage unit; a search keyword input unit for inputting a search keyword; and a search keyword input unit for inputting a search keyword. An information search apparatus comprising: a keyword search unit that searches for a representative keyword that includes a searched keyword; and a text broadcast display unit that displays a text broadcast that includes the keyword searched by the keyword search unit.

According to a sixth aspect of the present invention, in the information retrieval apparatus, each article of teletext data is represented by a set of keywords, and when a large amount of teletext data is accumulated, the contents are classified and displayed based on the keywords. . Further, by inputting the search keyword using an input device such as a keyboard, the keyword is searched, and the content of the teletext including the keyword can be confirmed.

[0018]

Embodiments of the present invention will be described below.

(First Embodiment) FIG. 1 is a system configuration diagram of an information display device according to an embodiment of the first invention. The first invention will be described with reference to FIG. FIG.
, 101 is a keyword set storage unit that stores a plurality of keyword sets, 102 is a target keyword set storage unit that extracts and stores target keyword sets from the keyword set storage unit, and 103 is a target keyword set storage unit. A representative keyword extracting unit that extracts a common keyword as a representative keyword from a set of keywords stored in step (1), a target keyword set 104 that extracts a keyword set including the representative keyword extracted by the representative keyword extracting unit as a target keyword set Extraction unit 105 is a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extraction unit, and 106 is a display unit that displays the representative keywords stored in the representative keyword storage unit.

FIG. 2 shows a hardware configuration in which the system configured as described above is executed. 2 is basically the same as the configuration of the general-purpose computer system, and therefore, the keyword set storage unit 1 described as the system configuration part of FIG.
01, a representative keyword storage unit 105, and a display unit 106. In the configuration of FIG. 2, the same parts as those of the system configuration of FIG.
2, reference numeral 201 denotes a VRAM that stores data displayed on the display unit 106; 202, a main storage device that stores processing programs and data at the time of execution; 203, an external storage device that stores programs and data; Is a CPU that transfers a program stored in the external storage device 203 to the main storage device 202 and executes the program. The operation of the information display device configured as described above will be described with reference to the flowchart of FIG.

(Preparation) A keyword set including a plurality of keyword sets is input to the keyword set storage unit 101 and stored.

(Step A1) Keyword Set Storage Unit 10
The keyword set stored in step 1 is input to the target keyword set storage unit 102 and stored.

(Step A2) From the keywords stored in the target keyword set storage means 102, the keyword having the highest appearance frequency is selected as a representative keyword and stored in the representative keyword storage unit 103.

(Step A3) The target keyword set extracting means 104 classifies the set including the representative keyword selected in (Step A2) and the set not including the representative keyword selected in (Step A2).

(Step A4) If there is a keyword set that does not include the representative keyword selected in (Step A3), the process proceeds to the next step. If there is no keyword set, the process proceeds to (Step A6).

(Step A5) A keyword set that does not include the representative keyword selected in (Step A3) is input to the target keyword set storage means 102, and (Step A)
Return to 2).

(Step A6) Keyword set storage unit 10
If all the keywords input to 2 have been selected as the representative keywords, go to (Step A8). Otherwise, go to the next step.

(Step A7) Representative keyword storage 1
The keyword set including the representative keyword stored at 01 is input to the target keyword set storage unit 102, and the process returns to (Step A2).

(Step A8) On the display section, the representative keywords are displayed hierarchically, and the algorithm is terminated.

A specific description will be given using an example of a set of keywords shown in Table 1.

[0031]

[Table 1]

(Preparation) The set of keywords in Table 1 is input to the keyword set storage unit 101 and stored.

(Step A1) Keyword Set Storage Unit 10
1 is input to the target keyword set storage unit 102 and stored.

(Step A2) The appearance frequency is calculated for the keywords in Table 1 stored in the target keyword set storage unit 102. The result is as shown in Table 2.

[0035]

[Table 2]

As can be seen from Table 2, "Iraq" is the largest three times. Therefore, the keyword “Iraq” is set as the representative keyword, and the representative keyword storage unit 10 is used.
5 is stored.

(Step A3) The target keyword set extraction means 104 extracts three sets of keywords including the representative keyword “Iraq” selected in (Step A2).
Classify into the other 10 sets.

(Step A4) Since there is a keyword set that does not include "Iraq" in (Step A3), the process proceeds to the next step.

(Step A5) The set of ten keywords not including "Iraq" selected in (Step A3) is input to the target keyword set storage means 102,
Return to 2.

(Step A2-1) An appearance frequency is calculated for a set of ten keywords. The result is as shown in Table 3.

[0041]

[Table 3]

As can be seen from Table 3, "AIDS" occurs twice and has the highest frequency. However, a keyword having another two frequencies may be selected. Here, the keyword “AIDS” is set as a representative keyword, and the representative keyword storage unit 10
5 is stored.

(Step A3-1) The target keyword set extracting unit 104 converts the two sets of keywords including the representative keyword “AIDS” selected in (Step A2-1) into the other eight sets. Classify.

(Step A4-1) (Step A3-
In 1), since there is a keyword set that does not include “AIDS”, the process proceeds to the next step.

(Step A5-1) (Step A3-
A set of eight keywords not including “AIDS” selected in 1) is input to the target keyword set storage unit, and step A
Return to 2.

By repeating (Step A2) to (Step A5), "Iraq" is used as a representative keyword.
"AIDS""Mr.Kan","Ministry of Agriculture, Forestry and Fisheries"
“Pharmaceutical damage” is selected in order. This means that the selected representative keyword has been selected as the keyword of the first hierarchy.

In (Step A2-5), "Pharmaceutical damage"
Will be described after the is selected as a representative keyword.

(Step A3-5) In the target keyword set extracting means, two sets of keywords including the representative keyword “drug damage” selected in (Step A2-5)
Classify into other 0 sets.

(Step A4-5) (Step A3-
Since there is no keyword set that does not include “medicine damage” in 5), the process proceeds to (Step A6).

(Step A6) Since there is a keyword that has not been selected as the representative keyword among all the keywords input to the keyword set storage unit, the process proceeds to the next step.

(Step A7) Representative keyword storage 1
The keywords of the three keyword sets 2, 3 and 8 of Table 1 including the representative keyword "Iraq" stored at 05 are input to the target keyword set storage unit, and again (step A2).
Return to

(Step A2) The appearance frequency is calculated for the keyword input to the target keyword set storage means 102. The result is as shown in Table 4.

[0053]

[Table 4]

As can be seen from Table 4, “UN Security” is 2
Maximum in frequency of times. Therefore, the keyword “UN Security” is set as a representative keyword and stored in the representative keyword storage unit 105.

By repeating (Step A2) to (Step A5), "UN Security" and "Aircraft Carrier Enterprise" are selected as representative keywords under "Iraq". Here, the selected keyword is selected as the keyword of the second hierarchy below “Iraq”.

By repeating this operation, a hierarchical structure of keywords is constructed in the representative keyword storage unit 105.

(Step A8) Representative keyword storage 1
The keywords stored at 05 are displayed using a hierarchical structure as shown in FIG.

FIG. 4 shows an example of the display. As shown in FIG. 4, the data of the set of keywords in Table 1 can be arranged and displayed according to the representative keywords, which is easy for the user to understand.

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In this embodiment, three keywords are one set. However, the number is not limited to three and may be any number.

In this embodiment, each keyword is not assigned an importance. However, even if each keyword is assigned an importance, a keyword having a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

(Embodiment 2) FIG. 5 is a system configuration diagram of an information display apparatus according to an embodiment of the second invention. The second invention will be described with reference to FIG. FIG.
, 501 is a keyword set storage unit that stores a plurality of keyword sets, 502 is a target keyword set storage unit that extracts and stores target keyword sets from the keyword set storage unit, and 503 is a target keyword set storage unit. A representative keyword part extracting means 504 for extracting a part of a partially common keyword from the set of keywords stored in 502, and a representative keyword part extracting means 503
Target keyword set extracting means for extracting a set of keywords including a part of the keywords extracted in step 1 as a target keyword set; 505, a representative keyword storage unit for storing the representative keyword portion extracted by the representative keyword part extracting means 503; Is a display unit for displaying the representative keyword portion stored in the representative keyword storage unit 505.

FIG. 6 shows a hardware configuration for executing the system configured as described above. FIG. 6 is basically the same as the configuration of the general-purpose computer system. Therefore, the keyword set storage unit 5 described as the system configuration part of FIG.
01, a representative keyword storage unit 505, and a display unit 506. In the configuration of FIG. 6, the same parts as those of the system configuration of FIG.
6, reference numeral 601 denotes a VRAM that stores data displayed on the display unit 506; 602, a main storage device that stores processing programs and data at the time of execution; 603, an external storage device that stores programs and data; Is a CPU that transfers a program stored in the external storage device 603 to the main storage device 602 and executes the program. The operation of the information display device configured as described above will be described with reference to the flowchart of FIG.

(Preparation) Same as (Preparation) in the first embodiment.

(Step B1) Same as (Step A1) in the first embodiment.

(Step B 2) From the keywords stored in the target keyword set storage unit 502, a part of the keyword having the highest appearance frequency is selected as a representative keyword part, and stored in the representative keyword storage unit 505.

(Step B3) to (Step B8)
Are from (Step A3) to (Step A
Since the process is almost the same as 8), the description is omitted.

A specific description will be given using an example of a set of keywords shown in Table 1. (Preparation) Same as (Preparation) in the first embodiment.

(Step B1) Same as (Step A1) in the first embodiment.

(Step B2) For the keywords in Table 1 stored in the target keyword set storage unit 502, the appearance frequency is calculated. Also, the frequency is calculated for the keyword portion. For example, the frequency is calculated for “Sugetsu”, which is a part of “Sugetsu”. In this case, however, the shortest two-character partial keyword is used. In another example, there is a keyword such as "work-related negligence," but some of the keywords, such as "work-related negligence,""business-relatednegligence,""business-relatednegligence,""business-related,""business,"
Calculate the frequency.

Here, as a result, "Suge thickness" appears at a frequency of 5 times and is the maximum. Therefore, a part of the keyword “Satoshi ...” is set as a representative keyword and stored in the representative keyword storage unit 505.

(Step B3) to (Step B8)
Since can be inferred from Embodiment 1, the description is omitted,
FIG. 8 shows the result displayed on the display unit 506.

Thus, a set of keywords given as shown in Table 1 can be arranged and classified by using the hierarchical structure of the keywords, and the keywords can be displayed. By viewing this hierarchy, the user can easily grasp the outline even if a large number of keyword sets are given. Furthermore, since a set of keywords is put together in a given keyword portion, many sets of keywords can be efficiently expressed.

In the present embodiment, the part after the keyword is deleted as a part of the keyword, but the part before the keyword may be deleted. For example, if “lethal is negligent in business”, “lethal in negligence” or “lethal in negligence”
With “Negligence” as a part of the keyword, the frequency of this keyword is calculated.

In this embodiment, the partial matching of keywords is considered only at the highest hierarchical level. However, at lower hierarchical levels, the frequency is calculated for the partial matching of keywords, and the keyword part is used as a representative keyword. Is also good.

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In this embodiment, three keywords are one set. However, the number is not limited to three and may be any number.

In the present embodiment, each keyword is not assigned an importance, but even if each keyword is assigned an importance, a keyword with a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

(Embodiment 3) FIG. 9 is a system configuration diagram of an information display device according to an embodiment of the third invention, and the third invention will be described with reference to FIG. FIG.
901 is a keyword set storage unit that stores a plurality of keyword sets, and 902 is a keyword set storage unit 9
Target keyword set storage means 903 for extracting and storing a set of target keywords from 01, a concept keyword storage section 903 for storing concept keywords obtained by combining a plurality of keywords into one concept, and 904 a target keyword set storage means. A representative keyword determining unit 905 for determining a concept keyword including the keyword set stored in 902, and a target keyword set extracting unit 905 for extracting a keyword set included in the concept keyword determined by the representative keyword determining unit 904 as a target keyword set Means 906 is a representative keyword storage unit that stores the concept keywords determined by the representative keyword determination unit 904, and 907 is a display unit that displays the concept keywords stored in the representative keyword storage unit 906.

FIG. 10 shows a hardware configuration in which the system configured as described above is executed. 10 is basically the same as the configuration of a general-purpose computer system. Therefore, the keyword set storage unit 901, the representative keyword storage unit 906, the concept keyword storage unit 903, and the display unit 907 described as the system configuration parts in FIG. Have. In the configuration of FIG. 10, the same parts as those of the system configuration of FIG. 10, reference numeral 1001 denotes a VRAM that stores data displayed on the display unit 907; 1002, a main storage device that stores processing programs and data at the time of execution; 1003, an external storage device that stores programs and data; Is a CPU that transfers a program stored in the external storage device 1003 to the main storage device 1002 and executes the program. The operation of the information display device configured as described above will be described with reference to the flowchart of FIG.

(Preparation) A keyword set including a plurality of keyword sets is input to the keyword set storage unit 901 and stored. Further, a definition of a concept keyword obtained by combining a plurality of keywords is input to the concept keyword storage unit 903,
Remember.

(Step C1) Keyword Set Storage Unit 90
The set of keywords stored in 1 is input to the target keyword set storage unit 902 and stored.

(Step C2) Concept Keyword Storage Unit 9
The frequency of appearance of the keyword defining the concept keyword stored in 03 is calculated, and the largest concept keyword is selected.

(Step C3) If the keyword defining the concept keyword is not in the target keyword storage,
Go to (Step C4). If there is an appropriate concept keyword in (Step C2), (Step C2)
Go to 5).

(Step C 4) From the keywords stored in the target keyword set storage unit 902, the keyword having the highest appearance frequency is selected as a representative keyword, and stored in the representative keyword storage unit 905.

(Step C5) The concept keyword selected in (Step C2) is stored in the representative keyword storage unit 906 as a representative keyword.

(Step C6) to (Step C11)
Are from (Step A3) to (Step A
The description is omitted because it is the same as 8).

A specific description will be given using an example of a set of keywords shown in Table 1. (Preparation) The keyword set in Table 1 is stored in the keyword set storage unit 9.
01 and store it. Further, the definition of the concept keyword in FIG. 12 is input to the concept keyword storage unit 903 and stored. In FIG. 12, "political relations" and "war relations"
Is a concept keyword. “Political relations”
"Democratic Party""Minister of Health and Welfare""Hatoyama and Atsushi Kan""AtsushiKan"
And the like. "War-related" includes "Aircraft Carrier Enterprise,""UNSecurity," and "World War II."
Consists of the Cold War.

(Step C1) Same as (Step A1) of the first embodiment.

(Step C2) For the keywords stored in the target keyword assembling means 902, the keywords defining the concept keywords “political relation” and “war relation” stored in the concept keyword storage unit 903, respectively. Calculate the appearance frequency of. The result is as shown in Table 5.

[0091]

[Table 5]

Since there are many "political relations", "political relations" is selected as a representative keyword.

(Step C3) Since there is a concept keyword, the procedure goes to (Step C5).

(Step C5) “Political relationship” is selected as a representative keyword, and is input to the representative keyword storage unit 906 and stored.

(Step C6) Classification is made into five keyword sets including the keyword of “political relation” and eight other keyword sets.

(Steps C 7 and C 8) Since there are eight keyword sets that do not include the “political relation” keyword, those keyword sets are input to the target keyword set storage unit 902 and stored.

(Step C2-1) The concept keyword “war relation” is selected for the eight keyword sets stored in the target keyword set storage means 902.

As described above, the concept keyword is selected as a representative keyword, and if there is no suitable concept keyword, the keyword itself is selected as a candidate for the representative keyword, thereby obtaining a hierarchical structure in which the keywords are arranged as shown in FIG. Is displayed.

As a result, a set of keywords given as shown in Table 1 can be arranged and classified by using the hierarchical structure of the keywords, and the keywords can be displayed. By viewing this hierarchy, the user can easily grasp the outline even if a large number of keyword sets are given. Furthermore, since the keywords are classified and arranged using not only the given keywords but also the concept keywords in which the keywords are put together, many sets of keywords can be efficiently expressed.

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In the present embodiment, one set is composed of three keywords. However, the number is not limited to three and may be any number.

In this embodiment, each keyword is not assigned an importance. However, even if each keyword is assigned an importance, a keyword with a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

(Embodiment 4) FIG. 14 is a system configuration diagram of an information display device according to an embodiment of the fourth invention. The fourth invention will be described with reference to FIG. In FIG. 14, reference numeral 1401 denotes a teletext receiving unit that receives teletext, 1402 denotes a text information converting unit that converts text broadcast received by the teletext receiving unit 1401 to text information, and 1403 denotes a text information converting unit 1402. Keyword extracting means for extracting a plurality of keyword sets from the text information, 1404 is a keyword set storage unit for storing a plurality of keyword sets extracted by the keyword extracting means 1403, and 1405 is a keyword set storage unit for storing target keywords from the keyword set storage unit 1404. Target keyword set storage means for extracting and storing a set, 1406 is a representative keyword extraction means for extracting a common keyword as a representative keyword from the set of keywords stored in the target keyword set storage means 1405, and 1407 is a representative keyword extraction means A target keyword set extraction unit that extracts a set of keywords including the representative keywords extracted in 406 as a target keyword set, 1408 is a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extraction unit, and 1409 is a representative keyword storage unit The display unit displays the representative keywords stored in the unit.

FIG. 15 shows a hardware configuration for executing the system configured as described above. FIG. 15 is basically the same as the configuration of the general-purpose computer system. Therefore, the teletext receiving unit 1401, the keyword set storage unit 1404, the representative keyword storage unit 1408, and the display unit 1409 described as the system configuration parts in FIG. Have. FIG.
5, the same parts as those of the system configuration of FIG. 14 are assigned the same reference numerals and the description is omitted. 15, reference numeral 1501 denotes a VRAM for storing data displayed on the display unit 1409; 1502, a main storage device for storing processing programs and data at the time of execution; 1503, an external storage device for storing programs and data; Is a CPU that transfers a program stored in the external storage device 1503 to the main storage device 1502 and executes the program. The operation of the information display device configured as described above will be described with reference to the flowchart of FIG.

(Step D1) Teletext broadcast receiving section 1401
In, a teletext is received.

(Step D2) Text information conversion means 1
At 402, the received teletext binary code is converted to a text code.

(Step D3) The keyword extracting means 1403 extracts keywords of each article from the text code. Here, one article is characterized by a plurality of keyword sets. Further, the extracted keyword set is input to the keyword set storage unit 1404 and stored.

(Step D4) to (Step D11)
Are from (Step A1) to (Step A
The description is omitted because it is the same as 8).

This will be further described using a specific example. (Step D1) The teletext receiving section 1401 receives a teletext page. FIGS. 17 to 19 show examples of page data of the teletext.

(Step D2) Text information conversion means 1
In 402, the teletext binary code received in (Step D1) is converted to a text code.
The binary codes in FIGS. 17 to 19 are also converted to text codes.

(Step D3) The keyword extracting means 1403 extracts the keywords of each page as a set. For example, from the page of FIG. 17, a group of (lethal, AIDS, green cross) is cut out as a keyword. Similarly, from FIG. 18, (Iraq, aircraft carrier enterprise, strengthening of power), and from FIG. 19 (before outbreak, cooperation, exercise of collective self-defense rights). The set of keywords cut out in this way is input to the keyword set storage unit and stored.

(Step D4) to (Step D11)
Are from (Step A1) to (Step A
The description is omitted because it is the same as 8).

As a result, a set of keywords of teletext information given as shown in FIGS. 17 to 19 can be arranged and classified by using the hierarchical structure of the keywords, and the keywords can be displayed. By looking at this hierarchy, the user can easily grasp the outline without looking at all the articles of the teletext broadcast given in large quantities.

In the present embodiment, when text information of teletext is provided, the information is classified and arranged. However, any information provided by text information can be applied. For example, there is a text portion of Internet information, text information of electronic mail, and text information of word processing information.

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In the present embodiment, three keywords form one set. However, the number is not limited to three and may be any number.

In this embodiment, each keyword is not assigned an importance. However, even if each keyword is assigned an importance, a keyword having a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In the present embodiment, three keywords form one set. However, the number is not limited to three and may be any number.

In this embodiment, each keyword is not assigned an importance. However, even if each keyword is assigned an importance, a keyword with a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

The information display devices of the second and third embodiments may be combined. (Embodiment 5) FIG.
0 is a system configuration diagram of the information display device according to the fifth embodiment of the present invention, and the fifth invention will be described with reference to FIG. In FIG. 20, reference numeral 2001 denotes a text broadcast receiving unit that receives a text broadcast, 2002 denotes a text information conversion unit that converts a text broadcast received by the text broadcast reception unit 2001 into text information, and 2003 denotes a text information converted by the text information conversion unit 2002. Keyword extracting means for extracting a plurality of keyword sets from text information, 2004
Is a keyword set storage unit for storing a set of a plurality of keywords cut out by the keyword cutout means 2003;
Reference numeral 05 denotes a target keyword set storage unit that extracts and stores a target keyword set from the keyword set storage unit 2004, and 2006 denotes a common keyword as a representative keyword extracted from the keyword set stored in the target keyword set storage unit 2005. A representative keyword extraction unit 2007 for extracting a set of keywords including the representative keyword extracted by the representative keyword extraction unit 2006 as a target keyword set;
Reference numeral 008 denotes a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extraction unit, 2009 denotes a representative keyword display unit that displays the representative keywords stored in the representative keyword storage unit, and 2010 denotes a representative keyword display unit 2009. Keyword designating means for designating a keyword to be set;
This is a teletext display unit that displays teletext including the keyword designated by 010.

FIG. 21 shows a hardware configuration for executing the system configured as described above. FIG. 21 is basically the same as the configuration of the general-purpose computer system. Therefore, the teletext receiving unit 2001, the keyword set storage unit 2004, the representative keyword storage unit 2008, the representative keyword display unit described as the system configuration part in FIG. 2009, a teletext display unit 2011, and a keyword designation unit 2010. In the configuration of FIG. 21, the same parts as those of the system configuration of FIG. 20 are denoted by the same reference numerals and description thereof is omitted. In FIG. 21, reference numeral 2101 denotes a VRAM for storing data displayed on the display unit; 2102, a main storage device for storing processing programs and data at the time of execution; 2103, an external storage device for storing programs and data;
Reference numeral 4 denotes a CPU that transfers a program stored in the external storage device 2103 to the main storage device 2102 and executes the program.
The operation of the information display device configured as described above will be described with reference to the flowchart of FIG.

(Step E1) to (Step E10)
Until this is the same as (Step D1) to (Step D10) of the fourth embodiment, the description is omitted.

(Step E11) In the representative keyword display section 2009, the representative keywords are displayed hierarchically.

(Step E12) Keyword Designation Unit 20
At 10, a teletext including the designated keyword is displayed on the teletext display unit 2011. FIG. 23 shows a display example. In this example, when the user designates the keyword “UN Security Council”, teletext data including the keyword is displayed.

As a result, it is possible to arrange and classify a large number of sets of keywords of teletext information provided by using the hierarchical structure of keywords, and to display the keywords. By looking at this hierarchy, the user can easily grasp the outline without looking at all the articles of the teletext broadcast given in large quantities. Also, by simply specifying a keyword having a hierarchical structure, the contents of the teletext of the keyword can be confirmed.

In the present embodiment, one article corresponds to one keyword set. However, if a plurality of articles correspond to one keyword set, 24, using the date and time when the article was acquired, and using a hierarchical structure. FIG.
In 4, the specified content is that the keyword of the article is “Suga Atsushi”, “O-157”, “Possibility” and the acquisition date and time is 1
This is an article of September 26, 996.

In this embodiment, only the information of the given teletext is displayed. But also,
It is also conceivable to operate the classification of teletext information according to the user's preference by performing a drag and drop operation of a keyword using an input device such as a mouse. This allows the user to classify and organize the articles of interest.

It is conceivable to provide a "copy button" for teletext. Text broadcasts can be easily selected by specifying keywords, and the contents of the teletext can be copied to the clipboard simply by pressing the "copy button".

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In the present embodiment, three keywords form one set. However, the number is not limited to three and may be any number.

In the present embodiment, each keyword is not assigned an importance. However, even if each keyword is assigned an importance, a keyword with a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

Note that the information display devices of the second and third embodiments may be combined. (Embodiment 6) FIG. 25 is a system configuration diagram of an information display device according to an embodiment of the sixth invention, and the sixth invention will be described with reference to FIG. In FIG. 25, reference numeral 2501 denotes a teletext receiver for receiving teletext, 2
Reference numeral 502 denotes a text information conversion unit that converts a text broadcast received by the text broadcast receiving unit 2501 into text information.
3 is a keyword extracting means for extracting a plurality of keyword sets from the text information converted by the text information converting means 2502, and 2504 is a keyword extracting means 25.
03, a keyword set storage unit for storing a plurality of sets of keywords cut out at step 03;
A target keyword set storage unit 2506 for extracting and storing a set of target keywords from the target keyword set 04; a representative keyword extraction unit 2506 for extracting a common keyword from the set of keywords stored in the target keyword set storage unit 2505 as a representative keyword; Reference numeral 2507 denotes a target keyword set extracting unit for extracting a set of keywords including the representative keywords extracted by the representative keyword extracting unit 2506 as a target keyword set, and 2508 denotes a representative keyword storage unit for storing the representative keywords extracted by the representative keyword extracting unit. , 2509 is a representative keyword display unit for displaying the representative keywords stored in the representative keyword storage unit.
Reference numeral 510 denotes a search keyword input unit for inputting a search keyword, 2511 denotes a keyword search unit for searching for a representative keyword including the search keyword input by the search keyword input unit 2510, and 2512 denotes a text broadcast including the keyword searched by the keyword search unit. Is a teletext display that displays.

FIG. 26 shows a hardware configuration in which the system configured as described above is executed. FIG. 26 is basically the same as the configuration of the general-purpose computer system. 2509, teletext display unit 2512, search keyword input unit 2510
It has. In the configuration of FIG. 26, the same portions as those of the system configuration of FIG. 25 are denoted by the same reference numerals, and description thereof is omitted. 26, reference numeral 2601 denotes a VRAM for storing data displayed on the display unit; 2602, a main storage device for storing a processing program and data at the time of execution;
Is an external storage device for storing programs and data, 2
Reference numeral 604 denotes a CPU that transfers a program stored in the external storage device 2603 to the main storage device 2602 and executes the program. The operation of the information display device configured as described above is shown in FIG.
7 will be described along the flowchart.

(Step F1) to (Step F11)
The steps up to this step are the same as those of (Step E1) to (Step E11) of the fifth embodiment, and a description thereof will be omitted.

(Step F12) The keyword stored in the representative keyword storage unit 2508 is searched using the keyword input in the search keyword input unit 2510.

(Step F13) Teletext including the keyword searched in (Step F12) is displayed on the teletext display unit 2512. FIG. 28 shows a display example. In this example, a display is shown in the case where the keyword “Suga” is input in the search keyword input section. Here, it is indicated that there are two keywords including “Suga”. Further, the retrieved keywords are shown on the representative keyword display section so that the user can understand them. In addition, a teletext including the searched keyword is displayed on the right side of FIG. This allows you to search for keywords,
You can see that "Suga Atsushi" is at the highest level.

As a result, a set of a large number of text broadcast information keywords can be arranged and classified by using the hierarchical structure of the keywords, and the keywords can be displayed. Further, a search can be performed using the keyword input by the user, and the relative relationship between the searched keyword and the keyword of the entire stored teletext can be grasped.

In this embodiment, one character broadcast of the searched keyword is displayed. However, a plurality of searched teletexts may be displayed. For example, when two teletexts are searched, two teletexts are displayed.

In this embodiment, the keyword having the highest frequency is set as the representative keyword. However, a method based on a conventional clustering method may be used as a method for selecting a representative keyword.

In the present embodiment, three keywords form one set. However, the number is not limited to three and may be any number.

In the present embodiment, each keyword is not assigned an importance. However, even if each keyword is assigned an importance, a keyword with a higher importance is preferentially assigned to a higher rank. You may select by hierarchy.

Note that the information display devices of the second and third embodiments may be combined.

[0144]

According to the information display apparatus of the first invention, a large amount of information of a set of keywords can be hierarchically classified and displayed according to the frequency of common keywords. This makes it possible to display a large amount of keyword information in a simple manner.

According to the information display apparatus of the second invention, a large amount of information of a set of keywords can be displayed by classifying the set of keywords by a common keyword portion.
This makes it possible to display a large amount of keyword information in a simple manner.

According to the information display apparatus of the third invention, a large amount of information of a set of keywords can be classified and displayed by a new keyword expressing the same field. This makes it possible to display a large amount of keyword information in a simple manner.

According to the information display apparatus of the fourth invention, each article of teletext data is represented by a set of keywords, and when a large amount of teletext data is accumulated, the contents are classified based on the keywords. By displaying, the contents can be easily confirmed.

According to the information display apparatus of the fifth invention, each article of teletext data is represented by a set of keywords, and when a large amount of teletext data is accumulated, the contents are classified based on the keywords. indicate. Furthermore, by specifying a keyword using an input device such as a mouse,
A teletext including the keyword can be displayed. Thus, the contents of the stored teletext can be easily confirmed.

According to the information retrieval apparatus of the sixth invention, each article of teletext data is represented by a set of keywords, and when a large amount of teletext data is accumulated, the contents are classified based on the keywords. indicate. Further, by inputting the search keyword using an input device such as a keyboard, the keyword is searched, and the content of the teletext including the keyword can be confirmed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration of an information display device according to a first embodiment.

FIG. 2 is a block diagram illustrating a hardware configuration of the information display device according to the first embodiment.

FIG. 3 is a flowchart illustrating an operation of the information display device according to the first embodiment;

FIG. 4 is a diagram showing a display result of the information display device according to the first embodiment.

FIG. 5 is a block diagram illustrating a system configuration of an information display device according to a second embodiment.

FIG. 6 is a block diagram illustrating a hardware configuration of an information display device according to a second embodiment.

FIG. 7 is a flowchart illustrating an operation of the information display device according to the second embodiment;

FIG. 8 is a diagram showing a display result of the information display device according to the second embodiment.

FIG. 9 is a block diagram illustrating a system configuration of an information display device according to a third embodiment.

FIG. 10 is a block diagram illustrating a hardware configuration of an information display device according to a third embodiment.

FIG. 11 is a flowchart illustrating an operation of the information display device according to the third embodiment;

FIG. 12 is a diagram showing an example of concept keywords according to the third embodiment;

FIG. 13 is a diagram showing a display result of the information display device according to the third embodiment.

FIG. 14 is a block diagram illustrating a system configuration of an information display device according to a fourth embodiment.

FIG. 15 is a block diagram illustrating a hardware configuration of an information display device according to a fourth embodiment.

FIG. 16 is a flowchart illustrating an operation of the information display device according to the fourth embodiment.

FIG. 17 is a diagram showing an example of teletext data of the information display device according to the fourth embodiment.

FIG. 18 is a diagram showing an example of teletext data of the information display device according to the fourth embodiment.

FIG. 19 is a diagram showing an example of teletext data of the information display device according to the fourth embodiment.

FIG. 20 is a block diagram illustrating a system configuration of an information display device according to a fifth embodiment.

FIG. 21 is a block diagram illustrating a hardware configuration of an information display device according to a fifth embodiment.

FIG. 22 is a flowchart illustrating an operation of the information display device according to the fifth embodiment.

FIG. 23 is a diagram showing a display result of the information display device according to the fifth embodiment.

FIG. 24 is a diagram showing another display result of the information display device of the fifth embodiment.

FIG. 25 is a block diagram illustrating a system configuration of an information search device according to a sixth embodiment.

FIG. 26 is a block diagram illustrating a hardware configuration of an information search device according to a sixth embodiment.

FIG. 27 is a flowchart illustrating the operation of the information search device according to the sixth embodiment.

FIG. 28 is a diagram illustrating a display result of the information search device according to the sixth embodiment.

[Explanation of symbols]

101,501,901,1404,2004,250
4 Keyword set storage unit 102, 502, 902, 1405, 2005, 250
5 Target keyword set storage means 103, 1406, 2006, 2506 Representative keyword extraction means 104, 504, 905, 1407, 2007, 250
7 Target keyword set extraction means 105, 505, 906, 1408, 2008, 250
8 Representative keyword storage units 106, 506, 907, 1409 Display units 201, 601, 1001, 1501, 101, 26
01 VRAM 202, 602, 1002, 1502, 2102, 26
02 Main storage device 203, 603, 1003, 1503, 2103, 26
03 External storage device 204, 604, 1004, 1504, 2104, 26
04 CPU 503 Representative keyword part extracting means 903 Concept keyword storage section 904 Representative keyword determining means 1401, 2001, 2501 Teletext receiving sections 1402, 2002, 2502 Text information converting means 1403, 2003, 2503 Keyword extracting means 2009, 2509 Representative keyword display Section 2010 keyword specifying section 2011, 512 teletext display section 2510 search keyword input section 2511 keyword search means

Claims (9)

[Claims] 1. A keyword group storage unit storing a plurality of keyword groups, target keyword group storage means for extracting and storing a target keyword group from the keyword group storage unit, and the target keyword group storage Representative keyword extracting means for extracting a common keyword as a representative keyword from a set of keywords stored by the means,
A target keyword set extracting unit that extracts a set of keywords including the representative keywords extracted by the representative keyword extracting unit as a target keyword set; and a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extracting unit. An information display device comprising a display unit for displaying a representative keyword stored in the representative keyword storage unit. 2. The representative keyword extracting means according to claim 1,
Instead of the representative keyword part extracting means for extracting a part of the partially common keywords from the keyword set stored in the target keyword storing means, the target keyword set extracting means is extracted by the representative keyword part extracting means. 2. The information display device according to claim 1, wherein said keyword display unit is replaced with a target keyword set extracting unit for extracting a set of keywords including a part of said keywords as a target keyword set. 3. A keyword set storage unit that stores a plurality of keyword sets, a target keyword set storage unit that extracts and stores a target keyword set from the keyword set storage unit, A concept keyword storage unit that stores concept keywords summarized by three concepts, a representative keyword determination unit that determines a concept keyword including a set of keywords stored in the target keyword set storage unit, and the representative keyword determination unit Target keyword set extraction means for extracting a set of keywords included in the concept keywords determined in the above as a target keyword set; a representative keyword storage unit for storing the concept keywords determined by the representative keyword determination means; Display unit that displays the concept keywords stored in An information display device characterized in that: 4. A keyword group storage unit storing a group of a plurality of keywords and a degree of importance of each keyword,
A target keyword set storage unit for extracting and storing a set of target keywords from the keyword set storage unit; and an importance degree for calculating importance of a common keyword from the keyword set stored in the target keyword set storage unit Calculating means, a representative keyword extracting means for determining a representative keyword according to the importance calculated by the importance calculating means, and a set of keywords including the representative keywords extracted by the representative keyword extracting means as a target keyword set. It is provided with a target keyword set extracting unit to be extracted, a representative keyword storage unit for storing the representative keywords extracted by the representative keyword extracting unit, and a display unit for displaying the representative keywords stored in the representative keyword storage unit. An information display device, characterized in that: 5. A teletext receiving unit for receiving teletext,
Text information conversion means for converting a text broadcast received by the text broadcast receiving section into text information, and keyword extraction for extracting a plurality of keyword sets from the text information converted by the text information conversion means and storing the keyword sets in a keyword set storage section The information display device according to claim 1, 2 or 3, further comprising means. 6. An Internet connection unit for connecting to the Internet via a telephone line or the like, text information extraction means for extracting a text portion of the Internet information connected by the Internet connection unit, and text information extracted by the text information extraction means 4. The information display device according to claim 1, further comprising keyword extracting means for extracting a plurality of keyword sets from the keyword set and storing the set in a keyword set storage unit. 7. A text information storage unit for storing text information, and a keyword extracting unit for extracting a plurality of keyword sets from the text information stored in the text information storage unit and storing the keyword sets in a keyword set storage unit. 4. The information display device according to claim 1, wherein the information display device is characterized in that: 8. A teletext receiving unit for receiving teletext,
A text information conversion unit for converting a teletext received by the reception unit into text information, a keyword set storage unit for cutting out and storing a plurality of keyword sets from the text information converted by the text information conversion unit, and the keyword set A target keyword set storage unit that extracts and stores a set of target keywords from a storage unit; and a representative keyword extraction unit that extracts a common keyword from the set of keywords stored in the target keyword set storage unit as a representative keyword. A target keyword set extracting unit that extracts a set of keywords including the representative keywords extracted by the representative keyword extracting unit as a target keyword set; and a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extracting unit. Is stored in the representative keyword storage unit. A representative keyword display unit for displaying a representative keyword, a keyword specifying unit for specifying a keyword displayed on the representative keyword display unit, and a teletext display for displaying a teletext including the keyword specified by the keyword specifying unit. An information display device comprising a display unit. 9. A teletext receiving unit for receiving teletext,
A text information conversion unit for converting a teletext received by the reception unit into text information, a keyword set storage unit for cutting out and storing a plurality of keyword sets from the text information converted by the text information conversion unit, and the keyword set A target keyword set storage unit that extracts and stores a set of target keywords from a storage unit; and a representative keyword extraction unit that extracts a common keyword from the set of keywords stored in the target keyword set storage unit as a representative keyword. A target keyword set extracting unit that extracts a set of keywords including the representative keywords extracted by the representative keyword extracting unit as a target keyword set; and a representative keyword storage unit that stores the representative keywords extracted by the representative keyword extracting unit. Is stored in the representative keyword storage unit. A representative keyword display unit for displaying a representative keyword, a search keyword input unit for inputting a search keyword, a keyword search unit for searching for a representative keyword including the search keyword input in the search keyword input unit, and the keyword An information search device, comprising: a teletext display that displays teletext including a keyword searched by a search unit.