JP5250000B2 - Data display device, data display control method, and program - Google Patents

Description

  The present invention relates to a technique for displaying a list of data such as tags and images.

  Recently, since the amount of information such as texts and images has become enormous on Web sites, various devices have been made to improve the visibility.

  For example, a “tag cloud” that visually displays “tags” in a list has become widespread. Some tags that are popular or frequently used are highlighted in stages with large fonts, bold fonts, and coloring.

  As a technique for displaying the tag cloud, research on a data display method for displaying the degree of distribution of data such as tags clustered in advance in each cluster collectively for each cluster is underway. For example, there is a so-called “tag map” in which the tag is placed on a virtual map and visualized. In this tag map, a method of expressing a cluster having a lot of data by size is used. The size of the cluster refers to, for example, the height of the land represented on the map (the height of the land changes as the number of registered questions increases).

  As a display technique related to a tag cloud, a technique is known in which data belonging to the same cluster is arranged together on a two-dimensional (for example, XY axis is a feature amount) image area (see Patent Document 1). According to this technology, feature values are assigned to the X-axis and Y-axis, and image information, text, and audio media information are arranged on the axes, thereby efficiently and flexibly searching for multimedia information on the Web. Can be classified and arranged.

  Further, as a simpler data display method in the tag cloud, a method of simply arranging data in a row of a text display area has been proposed (see Non-Patent Document 1).

Japanese Patent No. 3615518

Yusef Hassan-Monteroa, and Victor Herrero-Solanaa, “Improving Tag-Clouds as Visual Information Retrieval Interfaces”, International Conference on Multidisciplinary Information Sciences and Technologies, InSciT2006, 25-28 October 2006, Merida, Spain

  However, the technique disclosed in Patent Document 1 has a problem that the processing load is high, such as control in which data do not overlap each other and calculation of an occupied area of a cluster.

  Further, in the technique of Non-Patent Document 1, line breaks occur according to the width of the text display area, and data of the same cluster is displayed at a position apart from the end of the line and the beginning of the line, and there is no grouping. In addition, in the text display area, there is a method of intentionally inserting a line break for each cluster. However, there is a problem that a wasteful blank area is generated due to the line break and the efficiency of the display space of the text display area is deteriorated. It was.

  Therefore, an object of the present invention is to provide a data display device, a data display control method, and a program that can efficiently represent a cluster of clustered data.

In order to solve the above problems, according to the present invention, a data display device for displaying data classified into a plurality of clusters as claimed in claim 1, wherein the clusters are selected one by one. When arranging the data belonging to the cluster in a zigzag sequence, an arrangement means for arranging the data between the clusters continuously, and a display for displaying the arranged data on a predetermined text display area Control means, and the arrangement means obtains a tag array which is a collection of data belonging to a predetermined cluster from the plurality of clusters, and a row arrangement generation means for generating a row arrangement of one line in the text display area A tag set acquisition unit that selects a tag one by one from the tag set acquired by the tag set acquisition unit, and generates one row generated by the row array generation unit It is determined whether or not the free area of the row array is equal to or larger than the width of the tag. When it is determined that the free area of the row array is equal to or larger than the width of the tag, When the selected tag is arranged and it is determined that it is not equal to or larger than the width of the tag, the row array generation means generates the next one row array in which the data array direction is arranged in a zigzag manner in the immediately preceding row array. The gist of the present invention is a data display device comprising tag set arrangement means for arranging the selected tag from the upstream side in the data arrangement direction of the empty area of the generated next one-row row arrangement .

As described in claim 2, the data display apparatus according to claim 1, wherein the display control unit, and summarized in that identifiably displays the data belonging to the same cluster among clusters.

As described in claim 3, Abstract in the data display device according to claim 2, wherein the display control unit, to form a cluster area surrounding the cluster, to display overlapping the cluster area on the data And

As described in claim 4, in the data display device according to any one of claims 1 to 3, wherein the data, and summarized in that a text.

6. A data display method for displaying data classified into a plurality of clusters as claimed in claim 5 , wherein the clusters are selected one by one and the data belonging to the clusters are arranged in a zigzag sequence. when sequence, the steps of arranging by continuous data between clusters, and a step of displaying the sequence data in a predetermined text display area, arranged by continuous data between the clusters The step includes a row array generation step of generating a row array of one line in the text display area, a tag set acquisition step of acquiring a tag set that is a collection of data belonging to a predetermined cluster from the plurality of clusters, A tag is selected one by one from the tag set acquired by the tag set acquisition step, and is generated by the row array generation step. It is determined whether or not the free area of the row array of one line is equal to or greater than the width of the tag. If it is determined to be equal to or greater than the width of the tag, the upstream side in the data array direction of the empty area of the single line array If it is determined that the selected tag is not larger than the width of the tag, the row array generation step generates a row array of the next row in which the data array direction is arranged in a zigzag manner in the immediately preceding row array. The gist of the present invention is a data display method including a tag set arrangement step for arranging the selected tag from the upstream side in the data arrangement direction of the empty area of the generated next one-row row arrangement .

According to a sixth aspect of the present invention, there is provided a program for executing each step of the data display method according to the fifth aspect by a computer.

  As described above, according to the present invention, when a tag cloud composed of pre-clustered tags is displayed in a predetermined text display area, tags belonging to the same cluster are arranged in a zigzag. Even when line breaks are made according to the width, tags belonging to the same cluster are displayed close to each other between the lines, and a group of the same cluster can be easily expressed without creating useless blanks.

It is a functional block diagram of the data display apparatus 100 concerning embodiment of this invention. It is a figure which shows an example of the web page 200 containing the data produced | generated by the data display apparatus 100 concerning embodiment of this invention. It is a flowchart which shows the data generation process example of the data generation means 2 concerning embodiment of this invention. It is a conceptual diagram of the text display area 202 concerning embodiment of this invention. It is a conceptual diagram of arrangement | positioning of the data in the text display area 202 concerning embodiment of invention. It is a flowchart which shows the example of a data display process of the data display control means 3 concerning embodiment of this invention. It is a figure which shows the example of a display of the cluster area | region in the text display area 202 concerning embodiment of this invention. It is a figure which shows the example of a display of the web page 200 concerning embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Overall Configuration of Data Display Device 100]
FIG. 1 is a functional block diagram of a data display device 100 according to an embodiment of the present invention. The data display device 100 displays a Web page 200 (FIG. 2 described later) including data classified into a plurality of clusters. For example, the data display device 100 can be easily realized by a personal computer or the like, and includes an input unit 1 such as a keyboard and a mouse, a calculation unit 10 including a CPU (Central Processing Unit), and a display unit 4. It consists of.

  The calculation unit 10 includes data generation means 2 and data display control means 3. In addition, the calculation unit 10 includes a search engine, performs a search based on the search keyword input to the input unit 1, and collects a set of tags related to the search keyword, that is, a tag cloud based on the analysis of the search result. Output.

  The data generation means 2 generates text data in which tags are arranged in a row array in a zigzag manner. Specifically, when the data generation unit 2 selects clusters one by one and arranges texts that belong to the clusters in a zigzag-like row, the data generated by arranging the data between the clusters continuously is arranged. Generate data. In addition, the data generation means 2 generates text data arranged in a zigzag manner between successive lines when text as data is arranged in a line arrangement that defines the arrangement order of one line in the text display area. .

  A tag is a character string made up of text, and is attached to the content in order to characterize the content such as an image or a document, and is used for classification of the content.

  The data display control means 3 displays the text data arranged by the data generation means 2 on a predetermined text display area. Further, the data display control means 3 displays the text data belonging to the same cluster so as to be identifiable between the clusters. Specifically, the data display control means 3 forms an image showing a cluster area so as to surround text data belonging to the same cluster, and displays the image superimposed on the cluster data. Further, the data display control means 3 forms a cluster area with a different color for each cluster.

  The display unit 4 is, for example, a display, a CRT monitor, a liquid crystal display, a touch panel or the like, and displays data output from the data display control unit 3 on the display. Specifically, the display unit 4 displays the tag cloud output by the calculation unit 10 in a predetermined text display area on the display.

[Configuration of Web Page 200]
FIG. 2 is a diagram illustrating an example of a Web page 200 including data generated by the data display device 100 according to the embodiment of the present invention. The web page 200 is a page generated by the calculation unit 10 and displayed by the display unit 4.

  The web page 200 includes at least a text display area 202. As shown in FIG. 2, for example, the web page 200 includes an advertisement area 220 and an image area 222. In FIG. 2, the text display area 202 is only hatched to clarify the difference between the advertisement area 220 and the image area 222, and is not actually hatched. Further, the text display area 202 may not be arranged in the entire range of the Web page 200. For example, the (1) header, (2) footer, (3) center column, and (4) side box of the Web page 200. Or the like.

  In the web page 200, the size and position of the text display area 202, the advertisement area 220, and the image area 222 are assumed to be predetermined. The text display area 202 displays the tag cloud within a predetermined size and position range.

  For example, the advertisement area 220 is an area for displaying an advertisement related to the search keyword input to the input unit 1, and displays characters, images, videos, and the like including a link to a Web page of a sponsor who places the advertisement.

  For example, the image area 222 is an area for displaying an image and a moving image related to the search keyword input to the input unit 1.

[Data generation processing operation]
FIG. 3 is a flowchart illustrating an example of display data generation processing according to the present embodiment. FIG. 4 is a conceptual diagram of the text display area 202 according to the embodiment of the present invention. FIG. 5 is a conceptual diagram of data arrangement in the text display area 202 according to the embodiment of the invention.
The data generation processing operation will be described with reference to FIGS. In describing the data generation processing operation, the arithmetic unit 10 described above performs a search using the search keyword input to the input unit 1, and clusters tags assigned to the content as a search result for each content. It is assumed that the clustered set of tags is formed in advance and stored in storage means (not shown) such as a memory. Note that a known technique may be adopted as appropriate for clustering the tags.

  In step S101, the data generation means 2 recognizes the display coordinates and screen size of the area for displaying the tag on the display means 4, that is, the text display area 202 in the web page. It is assumed that the display coordinates and the screen size are stored in advance in a storage unit such as a memory. Therefore, the data generation means 2 recognizes the display coordinates by accessing the storage means such as a memory and reading the display coordinate information.

  Specifically, as illustrated in FIG. 4, the data generation unit 2 recognizes the display coordinates of the corners 204 a to 204 h of the text display area 202. Corner portions 204a to 204h include the positions of the X coordinate and the Y coordinate in the Web page 200. The X coordinate and the Y coordinate may be an absolute position from a predetermined coordinate of the web page 200, or may be displayed in a ratio with respect to the width and height of the web page 200.

  The data generation unit 2 may recognize the screen size by calculating the screen size of the text display area 202 based on the display coordinates of the corners 204a to 204h. Specifically, the data generation unit 2 can calculate the screen size by calculating the distance between the corners.

  In step S102, the data generation unit 2 generates a single row array. Specifically, the data generation unit 2 generates a row array based on the display coordinates of the text display area 202 and the screen size. For example, the data generation unit 2 calculates the width of the text display region 202 based on the coordinates of the corner portion 204a and the corner portion 204b of the text display region 202, and generates a row array 206a having an optimum width.

  In step S104, the data generation unit 2 acquires a tag set, which is a collection of data classified into a predetermined attribute, from a plurality of clusters stored in the storage unit. As illustrated in FIG. 5, for example, the data generation unit 2 acquires a tag set (also referred to as “cluster”) that is a set of tags of each data belonging to a cluster classified by the attribute A. In the tag set of the present embodiment, the display sizes of characters constituting each tag are different and are stored in the storage unit in advance. For example, the display size of a character that constitutes a tag with a large number of registrations, such as the character 212, or a tag that indicates the top of the search results, is larger than the display size of the characters that constitute another tag. The display size of characters may be an absolute size, or may be displayed in a ratio based on the display size of a predetermined character.

  In step S105, the data generation unit 2 selects one tag from the acquired clusters.

  In step S106, the data generation means 2 determines whether or not the empty area of the row array is equal to or greater than the tag width. If the data generation unit 2 determines that the empty area of the row array is equal to or greater than the width of the tag (Yes in step S106), the data generation unit 2 advances the process to step S107. If the data generation unit 2 determines that the empty area of the row array is not equal to or larger than the width of the tag (No in step S106), the process proceeds to step S110. Specifically, the data generation means 2 calculates the tag width based on the number of characters of the tag and the display size of the characters constituting the tag, and the tag is arranged in the tag width and the row arrangement. Judgment is made by comparing a non-existing area, that is, a vacant width.

In step S107, the data generation means 2 arranges tags from the head side of the empty area of the row array (upstream side in the data array direction) . In the present embodiment, the head side of the empty area of the row array indicates the left side of the row array. For example, as shown in FIG. 4, the data generation means 2 arranges tags classified by the attribute A from the left side of the row array 206a.

  In step S <b> 108, the data generation unit 2 determines whether there is a next tag that has not been placed in the acquired cluster. If the data generation unit 2 determines that the next tag is present (Yes in step S108), the process returns to step S105. If the data generation unit 2 determines that there is no next tag (No in step S108), the process proceeds to step S109.

  In step S109, the data generation unit 2 determines whether there is a cluster that has not been acquired from among a plurality of clusters stored in the storage unit. If the data generation unit 2 determines that there is a next cluster (Yes in step S109), the process returns to step S104. If the data generation unit 2 determines that there is no next cluster (No in step S109), the process ends.

  Such processing from step S104 to step S109 determines that the free area of the row array is not greater than the width of the tag (No in step S106), or there are no unacquired clusters (No in step S109). Repeat until.

  For example, as shown in the row array 206a in FIG. 5, the data generation unit 2 arranges tags classified by the attribute A from the top of the first row array, that is, from the left side to the right side. The processing from step S104 to step S109 is repeated until the empty area of the row array is filled or until there is no cluster that has not been acquired.

  Note that A to E shown in FIG. 5 indicate attributes of each tag, and a character string constituting each tag is displayed in the actual row array 206a. For example, in the actual row array 206a, tags such as “delicious”, “tsukemen”, and “miso” classified by the attribute of ramen shop are displayed.

In step S110, when it is determined in step S106 that the free area of the row array is not equal to or larger than the tag width (No in step S106), the data generation unit 2 recognizes the next row array as the same cluster area, Generate the next row array. For example, as illustrated in FIG. 5, when the data generation unit 2 determines that the free area of the row array 206a is not equal to or larger than the tag width, the data generation unit 2 recognizes the next row array 206b of the row array 206a as the same cluster area, A row array 206b is generated.
Further, when the data generation unit 2 determines that the empty area of the row array 206a is not equal to or larger than the width of the tag, the data generation unit 2 determines the arrangement of the tag with respect to the row array 206a. As a result, the height of the row array is determined, and the coordinates for starting display of the next row array are determined. For example, in the case of the characters constituting the tag arranged in the row array 206a, when the display size of the character 212 is the largest, the data generation unit 2 determines the height of the row array 206a based on the display size of the character 212. To confirm the display coordinates of the corner 204i of the row array 206a. Specifically, the data generation unit 2 determines the coordinates of the corner portion 204i by adding the height of the row array 206a to the display coordinates of the corner portion 204b.

  In step S111, the data generation unit 2 determines whether or not the empty area of the row array is equal to or greater than the number of characters in the tag. If the data generation unit 2 determines that the empty area of the row array is equal to or greater than the width of the tag (Yes in step S111), the data generation unit 2 advances the process to step S112. If the data generating unit 2 determines that the empty area of the row array is not equal to or larger than the width of the tag (No in step S111), the process proceeds to step S117.

In step S112, the data generation unit 2 arranges tags from the end side of the empty area of the row array (upstream side in the data array direction) . In the present embodiment, the end side of the empty area of the row arrangement indicates the right side of the row arrangement. For example, as shown in FIG. 5, the data generation means 2 arranges tags from the end side of the row array 206b, that is, from the right side.

  In step S113, the data generation means 2 determines whether there is a next tag that has not been placed in the acquired cluster. If the data generation unit 2 determines that the next tag is present (Yes in step S113), the process proceeds to step S116. If the data generation unit 2 determines that there is no next tag (No in step S113), the process proceeds to step S114.

  In the present embodiment, it is assumed that all tags classified by the attribute A are arranged in the middle of the row array 206b. Therefore, in this case, the data generation unit 2 advances the process to step S114.

  In step S114, the data generation unit 2 determines whether there is a cluster that has not been acquired from the plurality of clusters stored in the storage unit. If the data generation unit 2 determines that there is a next cluster (Yes in step S114), the process proceeds to step S115. If the data generation unit 2 determines that there is no next cluster (No in step S114), the process ends.

  In this embodiment, in step S113, it is determined that the arrangement of tags classified with the attribute A is finished, and in step S114, the data generation means 2 determines the tag set of the next cluster (in this example, B to E). It is determined that there is a tag set classified by attribute), and the process proceeds to step S115.

  In step S115, the data generation unit 2 acquires a tag set that has not been placed in tags and is classified into a predetermined attribute from a plurality of clusters stored in the storage unit. . In the present embodiment, as shown in FIG. 5, the data generation unit 2 acquires a tag set classified by the attribute B after the tag set classified by the attribute A.

  Such processing from step S111 to step S116 determines that the free area of the row array is not greater than or equal to the width of the tag (No in step S111), that is, until the free area of the second row of row array 206b is filled. Or, it is repeated until there is no cluster that has not been acquired (No in step S114).

  In step S117, if the data generation means 2 determines in step S111 that the empty area of the row array 206b of the second row is not greater than the tag width (No in step S111), the new next row array, That is, the third row arrangement is recognized as the same cluster area, and the next row arrangement is generated. For example, as illustrated in FIG. 5, when the data generation unit 2 determines that the empty area of the row array 206b is not equal to or larger than the tag width, the data generation unit 2 recognizes the next row array 206c of the row array 206b as the same cluster area, A row array 206c is generated.

In step S106, which is executed after step S117, the data generation means 2 determines whether or not the empty area of the third row array 206c is equal to or larger than the tag width. Further, in step S107, if the data generation means 2 determines in step S106 that the free area of the row array is equal to or larger than the width of the tag (Yes in step S106), the free area of the third line array 206c. The tag is arranged from the top side (upstream side in the data array direction) . For example, as shown in FIG. 5, the data generation unit 2 arranges tags from the head side of the row array 206c of the third row, that is, from the left side to the right side. As described above, the data generation unit 2 sequentially performs the above-described processing on the tags in the tag set. The data generation means 2 generates an arrangement order (data arrangement direction) 208 df corresponding to the row arrangements 206 a to 206 f in order to arrange the text data in the text display area 202 in a zigzag manner. For example, the arrangement order 208 df is from the left side to the right side in the row array 206 a, and from the right side to the left side in the row array 206 b that is the next row array. Hereinafter, by repeating this, the arrangement order 208 df continues in a zigzag pattern.

[Data display processing operation]
FIG. 6 is a flowchart showing a display process for causing the display means 4 to display the display data generated as described above. FIG. 7 is a diagram showing a display example of the cluster area in the text display area 202 according to the embodiment of the present invention. FIG. 8 is a diagram showing a display example of the Web page 200 according to the embodiment of the present invention.

  As shown in FIG. 6, in step S201, the data display control means 3 displays the data arranged by the data generation means 2 on a predetermined text display area. Specifically, the data display control means 3 describes the text display area 202 based on the tag arrangement order and displays the tag via the Web page 200.

  In step S202, the data display control means 3 acquires the display coordinates of the corners of the tags belonging to the same cluster in the row arrangement. For example, as shown in FIG. 5, the data display control means 3 has the corners 204a, 204b, 204i, and 204j of the row array 206a that are display areas of tags classified by the attribute A and the corners of the row array 206b. Display coordinates of 204c, 204k, and 204m are acquired. In this case, the display coordinates in the row array 206b of the tags classified with the attribute A are the display coordinates of the boundary lines between the tags classified into the A cluster and the tags classified into the B cluster. is there.

  In step S203, the data display control unit 3 forms a cluster area based on the acquired display coordinates, and generates image data 210a to 210e corresponding to the cluster area (see FIG. 7). Note that the cluster area is an area surrounding the data classified into the same cluster, and includes at least an area where data classified into the same cluster is arranged.

For example, as shown in FIG. 7, the generation of the image data 210a to 210e is expressed by a smooth curve (such as a spline curve) passing through N points.
In step S204, the data display control means 3 displays the generated image data 210a to 210e so as to overlap the text data belonging to the predetermined cluster generated by the process shown in FIG. For example, as shown in FIG. 7, the data display control means 3 superimposes image data 210a indicating a cluster area on a cluster area represented by a spline curve so as to surround all tags classified by the attribute A. indicate. The data display control means 3 also superimposes the image data 210b to 210e surrounding all of the classified tags on the tags classified by the respective attributes for the tags classified by the attributes B to E. indicate.
The web page 200 shown in FIG. 8 is generated by the above processing.

[Action / Effect]
As described above, in the present embodiment, when tags belonging to the same cluster are arranged in a row arrangement, the tags of the same cluster, that is, the same cluster are arranged close to each other, because they are arranged in a zigzag manner between consecutive rows. Thus, a group of tags of the same cluster can be expressed.

  Also, even when line breaks are made according to the width of the text display area 202, tags belonging to the same cluster are displayed close to each other between lines, and no unnecessary blanks are generated, so that clustering of clusters can be efficiently expressed. Can do.

  Furthermore, according to the present embodiment, the clustered tags are arranged by switching the tags alternately between the head side and the terminal side according to the free space situation of the row arrangement, that is, by arranging the tags by simple processing. Since a group of tags can be expressed, a group of tags can be displayed by a simple process without performing a complicated process.

  In this embodiment, for tags arranged in a zigzag in order, the display coordinates of the outer frame surrounding the tags are obtained for each cluster, and the display coordinates are connected by a curve such as a spline to create a closed curve. And display the group. As a result, it is possible to intuitively grasp the grouping between tags.

  In the tag cloud, tags with a large number of registrations and tags that indicate the top of the search results are highlighted by increasing the display size. However, in this embodiment as well, the display size of each tag is reflected in a zigzag pattern. The tags highlighted in the cluster group can be easily viewed.

[Other embodiments]
You may change and display the display color of the area | region of the closed curve which consists of image data 210a-210e in order. In that case, there is an effect that visibility becomes high. Also, by changing the display color of data between clusters, tags belonging to the same cluster may be identified and displayed by color. Thereby, the cluster of clusters can be represented on the text display area by the color of characters, and the display load can be reduced.

  In the embodiment described above, the data is a tag consisting of text. The present invention is not limited to this, and it may be a title indicating web content or an image.

  In the embodiment described above, the tags are arranged horizontally in the text display area 202. The present invention is not limited to this, and the tag may be arranged vertically in the text display area 202.

In the embodiment described above, if the data generation unit 2 determines that the empty area of the row array is not equal to or larger than the width of the tag, the data generation unit 2 arranges the tag in the new next row array. Although not within the scope of the right of the present invention, when one text spans between lines, it may be zigzag within the text. That is, if the data generation means 2 is a tag having a width larger than the empty area of the row arrangement, the data generation means 2 may arrange the tags having a large number of characters (wide) in a zigzag manner across the two rows of rows. Good. For example, if the tag is “Internet”, the data generation means 2 may arrange “Net” in the next line of “Inter” in the first column and arrange the character string “Internet” in a zigzag pattern. Good.

  In the above-described embodiment, the data display control means 3 forms an image showing the cluster area so as to surround the text data belonging to the same cluster, and displays it superimposed on the cluster data, thereby displaying the same cluster. The text data to which it belongs is displayed so as to be identifiable between clusters. The present invention is not limited to this. For example, the data display control means 3 displays the character color of the text data belonging to the same cluster in a different color for each cluster so that it can be distinguished between the clusters. Good.

  The present invention has been described above by the preferred embodiments of the present invention. While the invention has been described with reference to specific embodiments, various modifications and changes may be made to the embodiments without departing from the broad spirit and scope of the invention as defined in the claims. Obviously you can. In other words, the present invention should not be construed as being limited by the details of the specific examples and the accompanying drawings.

DESCRIPTION OF SYMBOLS 1 Input means 2 Data generation means 3 Data display control means 4 Display means 10 Arithmetic unit 100 Data display device 200 Web page 202 Text display area 204a-i Corner part 206a-f Row arrangement 208df Arrangement order 210a-e Image data 220 Advertising area 222 Image area

Claims (6)

A data display device for displaying data classified into a plurality of clusters,
An arrangement means for arranging the data between the clusters continuously when selecting the clusters one by one and arranging the data belonging to the clusters in a zigzag sequence.
Display control means for displaying the arranged data on a predetermined text display area ,
The arrangement means includes
Row array generation means for generating a line array of one line in the text display area;
Tag set acquisition means for acquiring a tag set that is a set of data belonging to a predetermined cluster from the plurality of clusters;
A tag is selected one by one from the tag set acquired by the tag set acquisition means, and whether or not the empty area of the row array of one row generated by the row array generation means is equal to or larger than the width of the tag. If it is determined that the width is equal to or greater than the width of the tag, the selected tag is arranged from the upstream side in the data array direction of the empty area of the row array of the one row, and Causes the row array generation means to generate a row array of the next row in which the data array direction is arranged in a zigzag manner in the immediately preceding row array, and in the data array direction of the empty area of the generated row array of the next row. Tag set placement means for placing the selected tag from the upstream side;
A data display device comprising: The display control means includes
2. The data display device according to claim 1, wherein the data belonging to the same cluster is displayed so as to be distinguishable between the clusters . The display control means includes
3. The data display device according to claim 2, wherein a cluster area surrounding the cluster is formed and the cluster area is displayed over the data. 4. The data display device according to claim 1, wherein the data is text . A data display method for displaying data classified into a plurality of clusters,
When selecting the clusters one by one and arranging the data belonging to the clusters in a zigzag-connected row, arranging the data between the clusters continuously; and
Displaying the arranged data on a predetermined text display area,
The step of continuously arranging the data between the clusters includes:
A row array generation step of generating a row array of one line in the text display area;
A tag set acquisition step of acquiring a tag set that is a collection of data belonging to a predetermined cluster from the plurality of clusters;
A tag is selected one by one from the tag set acquired by the tag set acquisition step, and whether or not the free area of the row array of one row generated by the row array generation step is equal to or larger than the width of the tag. If it is determined that the width is equal to or greater than the width of the tag, the selected tag is arranged from the upstream side in the data array direction of the empty area of the row array of the one row, and Causes the row array generation step to generate the next one-row row array whose data array direction is arranged in a zigzag manner in the immediately preceding row array, and in the data array direction of the empty area of the generated next one-row row array. A tag set placement step for placing the selected tag from the upstream side;
A data display method characterized by comprising: The program which performs each step of the data display method of Claim 5 by computer .

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