JPH08212232A - Example data base retrieval and presenting method - Google Patents

Abstract

PURPOSE: To precisely retrieve similar example data without omission by deciding the priority of a retrieval example corresponding to calculated similarity, grouping the retrieval examples corresponding to the priority and displaying and outputting them. CONSTITUTION: A retrieval object for retrieving the similar example is inputted by an input device 1. The inputted retrieval objects are classified by individual items. Namely, the retrieval objects are classified in accordance with the items which a user previously sets and they are stored in a retrieval item input table 52. The similar examples are retrieved from an example data base 4 by the individual classified items. Similarity to the similar examples for every classified item is calculated. The priority of display output corresponding to the similarity of the example is set. Namely, the retrieved similar examples are grouped for every same priority, and the presence or absence of display output is set at every group. Then, only the group for display output is selected from among the grouped retrieved similar examples and the example included in the group is displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a similar search presentation method in which a search target is classified into a plurality of items, similar cases are searched by using them as search keys, and the search results are presented according to the importance of the search results.

[0002]

2. Description of the Related Art In a conventional similarity search, based on a search keyword extracted from a search target, data related to the similar item is searched. There is also a method of searching for related items of the same node as the extracted search keyword. That is, in the search of text information, a core search keyword is extracted from a question sentence to be searched, and an arbitrary number of related items are collected and stored in individual nodes in each category. It also attempts to output linked items as search results. One of such conventional techniques is disclosed in
6-44305. In addition, as a method of searching multimedia information, the weight of information is calculated according to the conversion rule between the attribute value indicating the characteristic of the information and the criterion classified by the user, and the user to be searched sets the threshold of the weight of information. By doing so, there is a method in which only necessary information can be searched.
One of such conventional techniques is described in JP-A-6-28416.

[0003]

In the above-mentioned prior art, in the method of extracting a search keyword, the keyword extracting means sets a search keyword for a search input sentence such as a question sentence input by the user. Items related to the search keyword are searched from a dictionary file that stores information on related items. The search keyword is merely the extracted or summarized main part of the search input sentence, and the setting thereof depends on the contents of the dictionary file. Therefore, when a search keyword that accurately expresses a search input sentence exists in the dictionary file, it is possible to perform a search according to the user's request, but when there is no search keyword that accurately expresses, There was a problem that it may output search results that are off the mark.

As another conventional technique, when retrieving multimedia information, the weight of the retrieval result information is determined by a conversion rule indicating the relationship between the user's classification criteria and the attributes expressing the characteristics of the multimedia information. Is calculated and the necessary information is provided according to the threshold value set by the user. Therefore, the setting content of the conversion rule may affect the search result. That is, if the conversion rule can be set to meet the user's request, accurate information can be searched, but if the conversion rule is not set properly, information matching the user's request can be obtained. You may not be able to search.

The object of the present invention is to search for cases within the category of each item by setting priorities among the items, even if the items to be retrieved, which are the items to be retrieved, are independent items that are not related to each other. Then, by grouping and displaying the search results according to the similarity of the searched cases, the search cases can be presented step by step according to the priority of the item requested by the user. As a result, only by the user setting the order of priority among the items, the case data that meets the user's request can be searched.

[0006]

In order to achieve the above object, in the present invention, case retrieval is performed according to the following procedure.

(1) A search target is input and the search target is classified by item. For each item, the items are extracted from the search target and classified according to preset items.

(2) A case database is searched for a case similar to each item according to the classified items. Cases similar to each item allow the maximum search for cases that fall within the category of each item.

(3) The similarities of similar cases retrieved by each item are calculated. The degree of similarity is determined by whether or not the same keyword as the search keyword of the item exists in the case, and the higher the degree of similarity is calculated for the case that matches each item more.

(4) The priority of the search case is determined according to the calculated similarity, and the search cases are grouped according to the priority and displayed and output. Regarding the display of the cases divided into groups, the user can specify the group to be displayed. In addition, the priority of the search case is determined according to the priority between items.

By the above-described search procedure, the cases similar to the search target are searched and displayed item by item, and it is attempted to realize search completeness in which accurate similar case data can be searched without exception.

[0012]

According to the present invention, cases similar to the search target are searched and displayed for each group from case data having a high degree of similarity. In setting the search keyword from the search target, the search target is classified into a plurality of items, and a case similar to each set item is searched from the case database. Therefore, it is possible to search a wide range of cases similar to the search target. In addition, there is a possibility that even a case unnecessary for the search target may be searched by performing a wide range search, but in this case, the case data with a high degree of similarity is preferentially displayed and output, and the user outputs the display. An appropriate case search can be performed by setting the range of similar cases desired to be performed. Further, regarding the classification items to be searched, the priority among the items and the items can be set and changed by the user, so that the search can be performed flexibly.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIG.

A search target for searching a case is input by the input device 1, and CP is used for control and execution of the search.
Perform at U2. The case data for searching is stored in the case database 4, and the searched case is displayed and output from the display device 3. Next, the storage device 5 stores a similar case search program 51 for searching case data, a search item input table 52, an item-based case similarity storage table 53, a similarity search rule table 54, and a case similarity storage table 55. , A search case group storage table 56,
It is composed of a search target modification storage table 57.

Next, details of each table in the storage device 5 will be described. First, FIG. 2 shows the search item input table 52. The search item input table 52 includes a search input code column 52 for storing a search input code to be searched.
01, an item input code column 5202 for inputting the item code of the search target corresponding to each item. Next, FIG. 3 shows an item-based case similarity storage table 53. The item-based case similarity storage table 53 includes a case code column 5301 for storing a case code of the case data stored in the case database 4 of FIG. 1, an item column 5302 for storing a case classification item, and each case. The item code column 5303 for storing the item code corresponding to the item code and the similarity column 5304 for storing the similarity calculated for each item. Next, FIG. 4 shows the similarity search rule table 54. The similarity search rule table 54 includes a search input code column 5401 for storing a search input code of a search target, an item column 5402 for storing classification items, and a similarity category column for storing a range of similarity categories. 5404, a priority column 5405 for storing the priority, and a field priority column 5403 for storing the priority of the field. Next, FIGS. 5 and 6 show a case similarity storage table 55. The case similarity storage table 55 is the similarity search rule table 5 of FIG.
4 is composed of a priority symbol column 5501 for storing the priority called from 4, and a priority content column 5502 for storing the priority content corresponding to the priority symbol. Further, a case code column 5503 for inputting a code of the case data stored in the case database 4 of FIG.
It comprises a priority column 5504 for storing the priority called from the similarity search rule table 54 of FIG. Next, FIG. 7 shows a search case group storage table 56.
Indicates. The search case group storage table 56 is a case for inputting a search case code searched from the search case group column 5601 for storing a search case group in which priorities are collected and the case database 4 corresponding to each search case group. It is composed of a code field 5602.
Next, FIG. 8 and FIG. 9 show the search target modification storage table 57. The search target modification storage table 57 includes a search input code column 570 for storing a search input code to be searched.
1. Setting item number column 5702 for setting the number of items for classifying the search target and the case data to be searched, item number column 5 for storing the item number of each classified item
703, an item name column 5704 for storing the item name corresponding to each item number, and a priority determination order 5705 for storing the priority determination order corresponding to each item. Further, it is composed of a priority symbol column 5706 for storing a priority symbol in order to change the display range of cases searched by the user, and a display column 5707 for inputting a flag indicating presence or absence of display. This is the end of the detailed description of each table in the storage device 5.

Next, FIG. 10 shows a processing procedure based on the hardware configuration shown in FIGS. 1 to 9 and the table configuration in the storage device. In step 100, a search target for searching a similar case is input by the input device 1 of FIG. Next, in step 200, the search target input in step 100 is classified by item. That is, the search targets are classified according to the items preset by the user and stored in the search item input table 52 of FIG.
Details of step 200 will be described later with reference to FIG. 11. Next, in step 300, step 20
The case database 4 in FIG. 1 is searched for similar cases classified by item 0. Details of step 300 will be described later with reference to FIG. Next, step 4
In 00, the degree of similarity of the similar cases retrieved in step 300 is calculated. That is, the degree of similarity for a similar case is calculated for each classified item. Details of step 400 will be described later with reference to FIG.
Next, in step 500, the display output priority is set according to the similarity of the cases. That is, similar searched cases are grouped for each case having the same priority, and the presence or absence of display output is set for each group. Details of step 500 will be described later with reference to FIG.
Next, in step 600, among the search similar cases grouped in step 500, only the group for display output is selected, and the cases included in the group are displayed. Next, in step 700, it is determined whether to search for a similar case for a new search target. As a result of the determination, if a similar case is to be searched, the process goes to step 100.

Next, a detailed description of step 200 will be given. As shown in FIG. 11, in step 201, it is determined whether or not to input the field name for the search target input from the input device 1 of FIG. As a result of the determination, when the field name is input, the process goes to step 202. In step 202, the field name for the input search target is input, and the search item code corresponding to the field name is stored in the search input item code column 5202 of the search item input table 52. On the other hand, if the field name for the search target is not input in step 201, step 203
go to. In step 203, the field name for the search target is searched from the case database 4 of FIG. 1 to determine the optimum field name, and the search input item code column 5202 of the search item input table 52 is searched for the search item corresponding to the field name. Store the code. Details of step 203 will be described later with reference to FIG. Similar to the above process, in step 204, it is determined whether or not to input the place name for the input search target. As a result of the determination, when the place name is input, the process goes to step 205. In step 205, the place name for the input search target is input, and the search item code corresponding to the place name is stored in the search item input code column 5202 of the search item input table 52. On the other hand, if the location name for the search target is not input in step 204, step 206
go to. In step 206, the place name for the search target is searched from the case database 4 in FIG. 1 to determine the optimum place name, and the search input item code column 5202 of the search item input table 52 is searched for the search item corresponding to the place name. Store the code. Since the detailed processing in step 206 is the same as the detailed processing in step 203, detailed description will be omitted. Next, in step 207, it is determined whether or not to input the state name for the input search target. As a result of the determination, when the state name is input, the process goes to step 208. In step 208, the state name for the input search target is input, and the search item input code column 5202 of the search item input table 52 stores the search item code corresponding to the state name. On the other hand, if the state name for the search target is not input in step 207, the process proceeds to step 209.
In step 209, the state name for the search target is searched from the case database 4 of FIG. 1 to determine the optimum state name, and the search input item code column 5202 of the search item input table 52 is searched for the search item corresponding to the state name. Enter the code. The detailed processing in step 209 is as follows.
Since it is similar to the detailed processing of step 203, detailed description will be omitted. Thereafter, similarly, the search item code for each search item is stored in the search input item code column 5202 of the search item input table 52. Now, step 2
The detailed description of 00 is finished.

Next, the step 300 will be described in detail. As shown in FIG. 12, in step 301, the search item code column 52 of the search item input table 52 of FIG. 2 is classified by search item in step 200 of FIG.
Of the items stored in 02, the search item code corresponding to the field is called, and the case corresponding to the search item code is searched from the case database 4 of FIG. next,
In step 302, similar to the above process, in step 200 of FIG. 10, for each search item, the search item code corresponding to the location among the items stored in the search item code column 5202 of the search item input table 52 is called, A case corresponding to the search item code is searched from the case database 4 of FIG. Next, in step 303, similarly to the above processing, among the items stored in the search item code column 5202 of the search item input table 52 for each search item in step 200 of FIG. When called, the case corresponding to the search item code is searched from the case database 4 of FIG. Similarly, the case is searched from the case database 4 of FIG. 1 by the search item code for each item stored in step 200 of FIG. With the above, step 300
Finish the detailed description of.

Next, step 400 will be described in detail. As shown in FIG. 13, in step 401, the similarity regarding the “field” of the search item among the searched cases is calculated. Regarding the calculated data such as the similarity, the case code column 5301 of the item-based case similarity storage table 53 of FIG. 3 stores a code corresponding to the case searched for the “field” item, and stores the code in the item column 5302. The item code corresponding to the item of the searched case is stored in the item code column 5303 corresponding to “field”. Further, the calculated similarity of the search cases is stored in the similarity field 5304. Next, in step 402, the similarity regarding the “location” of the search item in the searched case is calculated. Regarding the calculated data such as the similarity, the case code column 5301 of the item-based case similarity storage table 53 in FIG.
The code corresponding to the case searched for the item “location” is stored, and the item code corresponding to the item of the searched case is stored in the item code column 5303 corresponding to “location” of the item column 5302. Further, the calculated similarity of the search cases is stored in the similarity field 5304. Next, step 40
In 3, the "state" of the search item in the searched cases
The degree of similarity regarding the item is calculated. As for the calculated data such as the similarity, the case code column 5301 of the item-based case similarity storage table 53 of FIG. 3 stores a code corresponding to the case searched for the “state” item, and stores the code in the item column 5302. Item code column 5303 corresponding to "state"
The item code corresponding to the item of the retrieved case is stored in. Further, the calculated similarity of the search cases is stored in the similarity field 5304. The same processing as described above is repeated for the set number of items. The degree of similarity is calculated and stored in 10 steps from 0 to 9. Next, in step 404, the degree of similarity calculated for each item is selected by calling the priority stored in the priority column 5405 of the similarity search rule table 54 of FIG. The priority is stored in the priority column 5504 corresponding to the case code stored in the case code column 5503 of the case similarity storage table 55. Next, in step 405, according to the priority stored in the case similarity storage table 55 in step 404, the cases having the same priority become the same search case group so that the search case group in FIG. The corresponding case code is stored in the case code column 5602 of the storage table 56. In step 406, it is determined whether or not there are other cases retrieved from the case database of FIG. As a result of the determination, if there are other cases, go to step 401 and repeat the above processing. This is the end of the detailed description of step 400.

Next, a detailed description of step 500 will be given. As shown in FIG. 14, in step 501, the priority corresponding to the case code stored in the case code column 5503 of the case similarity storage table 55 of FIG. 6 is stored in the priority column 5504. Call from priority. Next, in step 502, step 501
It is determined whether or not the priority of the case called in step 1 is a. As a result of the determination, if the priority of the case is a, go to step 503. On the other hand, if the priority of the case is not “a”, go to step 504.
In step 503, the case code column 5602 corresponding to the search case group a in the search case group storage table 56 of FIG. 7 stores the case code corresponding to the called priority a. Next, in step 504, it is determined whether or not the priority of the case called in step 501 is b. As a result of the determination, when the priority of the case is b, the process goes to step 505. On the other hand, if the priority of the case is not b, the process proceeds to step 506. At step 505, the case code corresponding to the called priority b is stored in the case code column 5602 corresponding to the search case group b in the search case group storage table 56 of FIG. Next, in step 506, it is determined whether or not the priority of the case called in step 501 is c. If the result of determination is that the priority of the case is c, processing proceeds to step 507. On the other hand, if the priority of the case is not c, the process proceeds to step 508. Step 5
In 07, the case code column 56 corresponding to the search case group c in the search case group storage table 56 of FIG.
In 02, the case code corresponding to the called priority c is stored. In the present embodiment, the priority level to be displayed is c according to the priority content stored in the priority content field 5502 of the case similarity storage table 55 of FIG.
Since it is up to, it goes to step 508. Next, in step 508, it is determined whether or not there is a case other than the above case. If there is another case as a result of the determination, the above processing is repeated from step 501. Above,
The detailed description of step 500 ends.

Next, the detailed description of step 203 described with reference to FIG. 11 will be given. As shown in FIG. 15, step 2
In 031, only the field name is called in order to store the search input item code in the search input item code column 5202 of the search item input table 52 of FIG. 2 selected from the case database 4 of FIG. Then, step 2032
In step 1, the list of the field names called in step 2032 is output and displayed on the display device 3 in FIG. The details of the case data corresponding to the field name to be displayed are also displayed and output when the detailed display is selected. Next, in step 2033, the field name corresponding to the search target is selected from the field names displayed in step 2032, and the search input item code corresponding to the selected field name is called from the case database, Figure 2
Input item code column 5 of the search item input table 52 of
It is stored in the column corresponding to the “field” of 202. This is the end of the detailed description of step 203.

The display image on the display device 3 of FIG. 1 according to the first embodiment of the present invention will be described later with reference to FIGS. 17 and 18.

Next, as a second embodiment of the present invention, FIG.
The processing procedure based on the hardware configuration shown in FIG. 9 to the table configuration in the storage device will be described with reference to FIG. FIG. 16 shows a processing procedure for changing the search item in the search target modification storage table 57 of FIGS. 8 and 9.

First, in step 2100, it is determined whether or not to change the items to classify the search target to be input and the case data to be searched from the case database 4 of FIG. As a result of the determination, when the item for classifying the search target and the case data is changed, the process goes to step 2200. In step 2200, it is determined whether to change the number of items for classifying the search target and the case data. As a result of the determination, when the number of items is changed, the procedure goes to step 2300. On the other hand, in step 2200, if the number of items is not changed, the process goes to step 2400. Step 230
In 0, the number of items to be changed is stored in the setting item number column 5702 of the search target alteration storage table 57 of FIG. Next, in step 2400, the item names for classifying the search target and the case data are shown in FIG.
Along with the item number of the search target alteration storage table 57 of
The item name is stored in the item name field 5704. FIG. 8 shows an example in which “field” is stored in the item name corresponding to item number 1, “place” is stored in the item name corresponding to item number 2, and “state” is stored in the item name corresponding to item number 3. There is. Next, in step 2500, the priority ranking among the classified items stored in the priority determination ranking column 5705 of the search target modification storage table 57 of FIG. 8 is determined. Regarding the priority determination order, the smaller the numerical value stored in the priority determination order column 5705, the higher the priority, and the higher the value, the lower the priority. Therefore, when the numerical value stored in the priority determination order column 5705 is 1, the priority among the classified items is the highest. Further, as shown in FIG. 9, with respect to the priority of the case data retrieved from the case database 4 of FIG. 1, a judgment flag for judging whether to display on the display device 3 of FIG. Column 570
Display column 570 corresponding to the priority symbol stored in No. 6
Store in 7. Next, in step 2600, it is determined whether or not the number of items for classifying the set search target and case data and the item name are to be set or changed. As a result of the determination, if the number of items for classifying the set search target and case data and the item name are to be set or changed, the process proceeds to step 2200.

Next, FIG. 17 shows an image of the search display screen on the display device 3 of FIG. 1 in the first embodiment of the present invention. First, a list of item names for classification is displayed on the right half of the display screen of the display device 3 (31). Next, a list of search cases corresponding to the item name selected from the classification item name list is displayed on the left half of the display screen of the display device 3 (32). For the list of cases retrieved from the case database 4 of FIG. 1, the case code corresponding to the title of the case data is displayed. Next, FIG. 18 shows an image of a display screen of search cases according to display priority in the first embodiment of the present invention. First, on the right half of the display screen of the display device 3 of FIG. 1, a priority item list (3501) for selecting the priority of the grouped case database and the selected priority are displayed (3502). Next, the case data group belonging to the selected priority is displayed in the left half (36). In FIG. 17 and FIG. 18, in selecting the item and selecting the priority, an “OK” button for confirming the selection is displayed on 33, and a “Cancel” button for resetting the selection is displayed on 34. . Next, FIG.
9 shows an image of the item change display screen on the display device 3 of FIG. 1 in the second embodiment of the present invention (37). The image of the display screen is a display screen for changing the number of items for classifying the set search target and case data, the item name, the priority determination order, and the like. First, the search input code of the search target is displayed (3701), and the number of setting items is displayed (3702). Next, a list for selection is displayed in order to change the item name to be changed and the priority determination order (3703). Next, 3703
The item name selected and displayed and the priority determination order are displayed (3704). The actual change work is 370
Do in 4. In addition, the "OK" button for selecting and confirming the item name to be changed and the priority determination order is selected by pressing the 3 button
705, "Can" for resetting the selection.
A “cel” button is displayed at 3706.

Finally, FIG. 20 shows the item code storage section in the case database 4 of FIG. The item code storage unit stores a case data code column 4001 for storing a case data code and a search item input code storing a search item input code for storing in the search input item column 5202 of the search item input table 52 of FIG. A column 4002, an item column 4003 storing the item name corresponding to the search item input code, and an item code column 4004 for storing in the item code column 5303 of the item-based case similarity storage table 53 of FIG. There is.

[0027]

According to the present invention, by classifying the search target for the search input for each item, similar cases are searched for each item and displayed. That is, instead of directly extracting the search keyword from the search target, similar case data is searched using the item content to which the search target belongs as the search keyword. Here, the items are prioritized according to the priority, which is a case database search method capable of preferentially searching for important items. Therefore,
Unlike the conventional method of extracting a keyword from a search target and searching for similar cases, since each classified item is used as a search keyword, it is possible to search for a wide range of case data that is not affected by the content of the search keyword. Furthermore, in order to prevent too many cases from being searched over a wide range, the priority of the cases searched using each item as a search keyword can be calculated and only the cases up to the required priority can be displayed by the user (searcher). . Therefore, in the search target itself,
Even if it does not include a direct search keyword, case data that falls within the category of the same classified item can be searched and displayed and output, and it is a case that falls within the category of the same item. However, in case of case data that is not included in other classification items, or has low priority of classification items even if included, it is set not to display and output the priority of the user and the presence / absence of display output. It becomes possible with. Also, the number of items to be classified and the item contents can be changed, and similar case data can be searched by classifying the items according to the search target.

[Brief description of drawings]

FIG. 1 is a hardware configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration of a search item input table.

FIG. 3 is a configuration of an item-based case similarity storage table.

FIG. 4 is a configuration of a similarity search rule table.

FIG. 5 is a configuration for storing priority contents of a case similarity storage table.

FIG. 6 is a configuration for storing a case code and a priority of a case similarity storage table.

FIG. 7 is a configuration of a search case group storage table.

FIG. 8 is a configuration for storing an item name or the like to be changed in the search target alteration storage table.

FIG. 9 is a configuration for storing the priority and the presence / absence of display of a search target modification storage table.

FIG. 10 is a flowchart showing a first embodiment of the present invention.

FIG. 11 is a detailed view of step 200.

FIG. 12 is a detailed diagram of step 300.

FIG. 13 is a detailed diagram of step 400.

FIG. 14 is a detailed view of step 500.

FIG. 15 is a detailed diagram of step 203.

FIG. 16 is a flowchart showing a second embodiment of the present invention.

FIG. 17 is a display image of item name selection in the first embodiment of the present invention.

FIG. 18 is a display image of priority selection according to the first embodiment of this invention.

FIG. 19 is a display image of item change in the second embodiment of the present invention.

FIG. 20 is a configuration of an item code storage unit of the case database.

[Explanation of symbols]

100 ... Input of search target, 200 ... Item classification of search target, 300 ... Search for similar case data by item, 400 ... Similarity calculation of search case, 500 ... Setting priority according to similarity, 600 ... Priority Display of search cases by degree, 1 ... Input device, 2 ... CPU,
3 ... Display device, 4 ... Case database,
5 ... Storage device, 51 ... Similar case search program, 52 ... Search item input table, 53 ... Item-based case similarity storage table, 54 ... Similarity search rule table, 55 ... Case similarity storage table, 56 ... Search case group Storage table, 57 ... Search target modification storage table.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kentaro Ohnishi 2-14-6 Kanda, Chiyoda-ku, Tokyo Inside Nitrate Electronic Service Co., Ltd.

Claims (6)

[Claims] 1. A CPU, an input device for inputting a search target for searching, a display device for displaying case data by a search, a case database storing case data for searching, and a search. In a computer system equipped with a classification item for classifying objects by item and performing a similar search, and a storage device that stores priority rules for search results, the input search target is classified by item, and each item is similar. A case database search and presentation method characterized by comprising means for searching for cases and means for displaying cases with higher priority by setting priorities between the searched cases. 2. In the case database search and presentation method according to claim 1, which case is displayed first,
A case database search and presentation method, wherein the priority for determining the order between items is determined by whether or not there is case data that includes items with high similarity in each search case data. 3. The case database search / presentation method according to claim 1, wherein case data having the same priority are grouped, stored in a table, and displayed. 4. A case database search and presentation method according to claim 3, wherein whether or not to display the grouped case data can be controlled to be displayed and output for each priority group. Presentation method. 5. A CPU, an input device for inputting a search target for searching, a display device for displaying case data by searching, a case database storing case data for searching, and a search. In a computer system including a classification item for classifying objects by item and performing a similar search, a priority rule for search results, and a storage device that stores changes to the items for searching, classify the input search target A case database search / presentation method comprising means for changing the number of items and item names for performing. 6. The case database search / presentation method according to claim 5, wherein the priority for determining the order of cases to be displayed can be changed between items to be changed. Presentation method.