JP2008191798A - Information retrieval device, and control method and control program therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information retrieval device to change a display state of each character candidate based on the number of prescribed spots for each the character candidate next to a character of a name of the prescribed spot beginning with the inputted character. <P>SOLUTION: A prescribed spot retrieval means 22 retrieves the prescribed spot of the name beginning with the character received by an input reception means 21 from a storage part 5. A character candidate extraction means 23 extracts the character candidate next to the inputted character of the name of the prescribed spot when the prescribed spot is retrieved. A ratio calculation means 24 calculates a ratio of the number of the prescribed spots in each the character candidate extracted by the character candidate extraction means 23 to a total number of the prescribed spots retrieved by the prescribed spot retrieval means 22. A display state change means 25 changes the display state displayed in a display part 7 of each the character candidate according to the display state stored in the storage part 5 based on the calculated ratio in each the character candidate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a case where characters are input at a predetermined point such as a facility search in a search process in a navigation device, and an information search device that changes the display mode of character candidates based on the ratio of the number of predetermined points that character candidates have, The present invention relates to a control method and a control program.

  2. Description of the Related Art In recent years, with the development of information processing technology, in-vehicle navigation devices that are mounted on a moving body such as a vehicle and perform route guidance have become widespread. This navigation device uses map data prepared in advance, displays the current position information of the vehicle to be measured by GPS or the like on a surrounding map, calculates a route to a specified destination, The route is guided by synthetic voice or the like.

  Here, in a navigation device, when a user sets a destination such as a facility, a method of inputting by using a search function provided in the device is common. Various search methods such as a telephone number input method, an address input method, an address reading kana input method, a name input method, a category selection method, and an extraction method of facilities around the current position have been proposed for this search function. For each such search method, information on a predetermined point such as a facility is stored as a search database in a storage device (CD-ROM, DVD-ROM, hard disk, etc.) mounted in the navigation device.

  In the prior art, character information on a predetermined point and information on the predetermined point including position information are stored in advance, and when the user searches for a destination or facility, the character information on the predetermined point and the relationship between the point and the point are stored. A navigation device that provides information in association with each other has been proposed (see Patent Document 1).

  Here, of the search methods, in the name input formula that searches by inputting a name, character information such as “A”, “I”,... Is input character by character, and the search is performed each time a character is input. The next character candidate is obtained based on the presence or absence of information stored on the database. Then, by displaying the acquired next character candidate on the screen, the user selects the next character candidate, and this operation is repeated to narrow down the search target.

Even while text information is being entered, it is possible to display a list of facilities up to that point, for example, by pressing the “Enter” button. The user selects a desired facility from the list displayed. By doing so, the position information is displayed as a map.
JP 2001-296136 A

  By the way, in the name input type search method as described above, the search target is narrowed every time a character is input, but the next character candidate obtained by narrowing down is the narrowed search target quantity. Irrelevantly displayed on the search screen. That is, the number of predetermined points having the input character in the name is different for each character candidate, and the number of cases for each character candidate is 1 or 1000. For this reason, a character candidate having a number of predetermined points with a low possibility of being selected and a character candidate having a number of predetermined points with a high possibility of being selected being 1000 are displayed in the same manner.

  Here, when the user selects a character candidate having a high possibility of being selected, the character candidate having a high possibility is displayed in a display manner similar to that of the character candidate having a low possibility. It took the same time as selecting candidates.

  Therefore, in order to solve the above problems, the present invention is based on the number of predetermined points of the name having the input characters from the beginning in the character input process when searching for predetermined points such as facilities. An object of the present invention is to provide an information search apparatus capable of changing the display mode of a character candidate that follows an input character among the names of predetermined points, a control method thereof, and a control program. That is, it is an object of the present invention to provide an information search apparatus, a control method thereof, and a control program capable of efficiently selecting a character candidate that is highly selectable by a user as compared with a character candidate that is not selectable.

The present invention solves the above problems by the following means.
The invention according to claim 1 is an input unit that receives an operation from a user, a storage unit that stores information on a predetermined point in advance, a display unit, and the information stored in the storage unit by information input by the input unit. In the information search apparatus having a function of searching for a predetermined point, an input receiving unit that receives the name of the predetermined point for each character through the input unit, and a predetermined name including characters in the order received by the input receiving unit A character for extracting a character candidate following the character received by the input receiving means from a predetermined point searching means for searching for a point from the storage unit and the name of the predetermined point searched by the predetermined point searching means Of the total number of the predetermined points searched by the candidate extraction means and the predetermined point search means, for each character candidate extracted by the character candidate extraction means, A ratio calculation means for calculating a ratio of the number of predetermined points having character candidates in the name, and a display mode change for changing the display mode of the character candidates based on the ratio for each of the character candidates calculated by the ratio calculation means Means and output means for outputting the character candidates of the display mode changed by the display mode changing unit to the display unit.

  Invention of Claim 4 grasped | ascertained the information search device of Claim 1 from the viewpoint of the method, the input part which receives operation from a user, the memory | storage part which memorize | stored beforehand the information of a predetermined point, a display part, In the control method of an information search apparatus having a function of searching for the predetermined point stored in the storage unit based on information input by the input unit, a computer receives the name of the predetermined point for each character through the input unit. An input receiving step, a predetermined point searching step for searching the storage unit for a predetermined point whose name includes the characters in the order received in the input receiving step, and the predetermined point searched by the predetermined point searching step. Among the names, a character candidate extraction step of extracting a character candidate following the character received by the input reception step; and the predetermined Of the total number of predetermined points searched by the point search step, for each character candidate extracted by the character candidate extraction step, a ratio calculation step for calculating a ratio of the predetermined number of points having the character candidate in the name, and the ratio Based on the ratio for each character candidate calculated in the calculating step, the display mode changing step for changing the display mode of the character candidates, and the character candidates in the display mode changed by the display mode changing step are displayed. And an output step of outputting to the unit.

  Invention of Claim 7 grasped invention of Claim 1 or 4 from a viewpoint of a computer program, an input part which receives operation from a user, a storage part which memorizes beforehand information on a predetermined point, a display part, In the control program for an information search apparatus having a function of searching for the predetermined point stored in the storage unit based on the information input by the input unit, the computer uses the input unit to name the predetermined point for each character. An input reception process to be received, a predetermined point search process for searching for a predetermined point in the name including characters in the order received in the input reception process, and the predetermined point searched by the predetermined point search process Character candidate extraction processing for extracting a character candidate subsequent to the character received by the input reception processing, and the predetermined location Of the total number of predetermined points searched by the search process, a ratio calculation process for calculating a ratio of the predetermined number of points having the character candidates in their names for each character candidate extracted by the character candidate extraction process, and the ratio calculation A display mode change process for changing the display mode of the character candidates based on the ratio for each of the character candidates calculated by the process, and the character candidates of the display mode changed by the display mode change process are displayed on the display unit. And an output process for outputting to the output.

  In the above aspect, since the display mode of the character candidate displayed on the display unit can be changed based on the ratio of the number of predetermined points including the character candidate in the name, the user can efficiently select the desired character candidate. It becomes possible to find out.

  According to a second aspect of the present invention, in the information search device according to the first aspect, the display mode changing unit is configured to determine the size of the character candidate based on the ratio for each character candidate calculated by the ratio calculating unit. At least one of color and shape is changed.

  The invention of claim 5 grasps the information search device of claim 2 from the viewpoint of the method. In the control method of the information search device of claim 4, the display mode changing step is performed by the ratio calculating step. Based on the calculated ratio for each character candidate, at least one of the size, color, and shape of the character candidate is changed.

  The invention according to claim 8 grasps the invention according to claim 2 or 5 from the viewpoint of a computer program. In the control program for an information search device according to claim 7, the display mode changing process is the ratio calculating process. At least one of the size, color, and shape of the character candidates is changed based on the ratio for each character candidate calculated by the above.

  In the above-described mode, the display mode of the character candidate is changed from the viewpoint of the size, color, and shape of the character candidate, so that it can be visually recognized and displayed in a manner that is easy for the user to distinguish. It becomes. For example, a mode in which the size of a character candidate having a large ratio of the number of cases at a predetermined point is displayed larger than that of other candidates, or a character candidate having a small ratio is displayed small can be considered.

  According to a third aspect of the present invention, in the information search device according to the first aspect, the display mode changing means is based on the ratio for each character candidate calculated by the ratio calculating means as the display mode of the character candidates. The flashing pitch is adjusted.

  The invention of claim 6 grasps the display mode changing device of claim 3 from the viewpoint of the method, and in the control method of the information search device according to claim 4, the display mode changing step includes: As a display mode, the blinking pitch is adjusted based on the ratio for each character candidate calculated by the ratio calculation step.

  The invention according to claim 9 is the one in which the invention according to claim 3 or 6 is grasped from the viewpoint of a computer program. In the control program for an information search device according to claim 7, the display mode changing process The blinking pitch is adjusted based on the ratio for each character candidate calculated by the ratio calculation process as a display mode.

  In the above-described mode, the blinking pitch can be adjusted as a display mode of the character candidate, so that it can be displayed in a mode that can be easily recognized visually, and it is safe without being distracted even during driving. A highly efficient search function can be realized.

  As described above, according to the present invention, the display mode of a character candidate that is highly selectable based on the number of each character candidate next to the predetermined point having the input character, for example, in terms of size, color, and shape Therefore, it is possible to provide an information search apparatus capable of efficiently searching for character information, a control method thereof, and a control program.

[1. This embodiment]
[1-1. Constitution]
Below, the structure in embodiment of this invention is demonstrated based on FIG.
Reference numeral 1 denotes a main CPU (central processing unit) that controls the entire system and its peripheral circuits, and is a control unit that performs information processing including control of each unit of the present invention. 2 is a dynamic RAM (DRAM) for loading the main program, 3 is a static RAM (SRAM) with a battery backup for holding memory contents such as settings while the main power is turned off, 4 is for starting up, etc. The ROM is accessed from the control unit 1. Here, the main memory M includes a DRAM 2, an SRAM 3, and a ROM 4.

  Reference numeral 5 denotes a storage unit that stores in advance information relating to a predetermined point such as the name and location of the predetermined point as a search database. Here, the predetermined point includes facilities such as a convenience store and a gas station, as well as historic sites and historic sites, and a simple place name is also included in the predetermined point. In addition, as will be described later, in the storage unit 5, among the names of predetermined points that include the input character in the name from the beginning, in the character candidate that follows the input character that is extracted, the predetermined point for each character candidate The display mode of the character candidate based on the number of cases is stored.

  For example, when the display mode is changed from the viewpoint of size, the ratio of the number of predetermined points with other character candidates is set to three levels of 0% or more, less than 10%, 10% or more, less than 50%, or 50% or more. The size (small, medium, large, etc.) that is the display mode of each character candidate corresponding to the classification is stored.

  The storage unit 5 stores map data (typically, route search data and map display data), other search data, and the like using a drive such as an HDD, DVD-ROM, or CD-ROM. It is what has been. The map data is composed of two types for route search and map display. The route search data is composed of data (node, link information) necessary for route search. The link of the route search data has a common ID as a link ID and a road link for map display, and is associated with each other. On the other hand, the map display data includes detailed road shape information (shape point sequence), area shape information, and the like for display.

  Reference numeral 6 denotes a vehicle information acquisition unit that detects operations and states such as illumination (lighting of instrument panel, etc.), vehicle speed pulse, parking, and the like. Reference numeral 7 denotes a display unit that draws and displays information such as a map and has a display screen such as a liquid crystal display panel. Reference numeral 8 denotes a video RAM (VRAM) provided for the display unit 7.

  Reference numeral 9 denotes an input unit that receives input of information and operations, and is a control device that detects input from a touch panel or the like. However, the configuration and type of the input unit are free, and in addition to the operation keys around the display unit 7, a remote controller A unit, a touch sensor integrated with the display panel, or the like may be used alone or in combination. A user interface unit 10 connects the display unit 7 or the input unit 9 and the control unit 1 using an I / O control circuit, a driver, or the like.

  11 is a TV reception and processing unit for receiving TV (various television broadcasts), 12 is an FM multiple reception and processing unit for acquiring VICS information, and 13 is a beacon for acquiring VICS information. Receiving and processing unit.

  Reference numeral 14 denotes a positioning unit that obtains navigation information related to the behavior of the host vehicle such as the current position, direction, and speed by a positioning technique (for example, GPS, gyroscope, geomagnetic sensor, acceleration sensor, vehicle speed pulse).

  In addition, the control unit 1 includes the following processing means (21, 22,... Shown in FIG. 1) that operate when searching for a predetermined point such as a facility. Hereinafter, each means which comprises the control part 1 is demonstrated. Note that navigation processing common to the past (for example, calculation of the current position, route calculation, etc.) is not an element specific to the present invention, and is shown as the navigation unit 20 and will not be described in detail.

  Reference numeral 21 denotes an input receiving means for receiving, for each character, a sight spot at a predetermined point input from the user through the input unit 9 when searching for a predetermined point such as a facility. Reference numeral 22 denotes a predetermined point searching unit that searches the storage unit 5 for a predetermined point that includes the character received by the input receiving unit 21 in the name from the beginning.

  Reference numeral 23 denotes a character candidate extraction unit that extracts a character candidate following the character received by the input receiving unit 21 from the name of the predetermined point searched by the predetermined point searching unit 22. For example, when the input receiving unit 21 receives characters “Tokyo” one by one, the predetermined point searching unit 22 searches for a predetermined point including the characters “Tokyo” in the name from the beginning, and when the character is searched, Candidate extraction means 23 extracts characters (such as “to”, “no”, “de”, etc.) following “Tokyo” at the searched predetermined point.

  Reference numeral 24 denotes a ratio calculation unit that calculates a ratio of the number of predetermined points for each character candidate extracted by the character candidate extraction unit 23 with respect to the total number of the predetermined points with respect to the predetermined point searched by the predetermined point search unit 22. That is, the ratio calculating unit 24 calculates the number of predetermined points including the character candidate in the name for each character candidate extracted by the character candidate extracting unit 23 from the predetermined points searched by the predetermined point searching unit 22. Then, the ratio of the number of cases for each character candidate to the total number of cases is calculated.

  Specifically, for example, “A”, “I”, “U” are listed as the next character candidates, the number of predetermined points for “A” is 30, the number of predetermined points for “I” is 200, When the number of predetermined points for “U” is 1000, “A” is about 2%, “I” is about 17%, and “U” is about 81%. 24.

  Reference numeral 25 denotes a display mode changing unit that changes the display mode of the character candidate displayed on the display unit 7 based on the ratio of the number of predetermined points for each character candidate calculated by the rate calculating unit 24. As described above, the display mode changing unit 25 displays the display corresponding to the ratio for each character candidate calculated by the ratio calculating unit 24 based on the display mode corresponding to the ratio stored in the storage unit 5 in advance. The character candidate is changed to the mode.

  For example, the storage unit 5 stores a display mode of “small” when the ratio is 0% or more and less than 10%, “medium” when the ratio is 10% or more and less than 50%, and “large” when the ratio is 50% or more. In this case, according to the ratios of “A”, “I”, and “U” calculated earlier, the display mode changing unit 25 sets the character candidate “A” to a small size and “I” to a medium size. Then, change “U” to a large size. Reference numeral 26 denotes output means for outputting each character candidate whose display mode has been changed by the display mode changing unit 25 to the display unit 7.

[1-2. Action]
Next, the processing procedure of this embodiment is demonstrated based on the flowchart of FIG. It is assumed that a search function for searching for a predetermined point such as a facility or a historic site is executed by a name input formula.

  First, as shown in FIG. 2, the user inputs the name of a predetermined point to be searched through the input unit 9 character by character from the beginning. When a certain character is input, the input receiving means 21 receives the input of the character (STEP 201). Here, the predetermined point search unit 22 searches the storage unit 5 for a predetermined point including the character received by the input receiving unit 21 in the name from the beginning (STEP 202).

  When a predetermined point whose name includes the character received by the predetermined point searching unit 22 is searched from the storage unit 5 (YES), the predetermined point searched by the character candidate extracting unit 23 through the predetermined point searching unit 22 Character candidates following the character received by the input receiving means 21 are extracted (STEP 203). Then, the ratio calculating unit 24 first calculates the number of predetermined points having each character candidate for each character candidate extracted by the character candidate extracting unit 23 from the predetermined points searched by the predetermined point searching unit 22. Calculate (STEP 204).

  When the number of predetermined points for each character candidate extracted through the character candidate extraction unit 23 is calculated, the ratio calculation unit 24 calculates the ratio of the number of predetermined points for each character candidate to the total number of cases. (STE205). Then, based on the ratio of the number of predetermined points for each character candidate calculated by the ratio calculating unit 24, the display mode changing unit 25 stores the display mode displayed on the display unit 7 of each character candidate in the storage unit 5. It changes corresponding to the done mode (STEP 206).

  For example, in the storage unit 5, the size of the character candidates to be displayed when the ratio of the number of predetermined points is 0% or more and less than 10% is “small”, and when the ratio is 10% or more and less than 50%, “medium”, When a display mode of “large” is stored when the ratio is 50% or more, the display mode of each character candidate is set to “small” according to the ratio of each character candidate calculated by the ratio calculation unit 24. ”,“ Medium ”, and“ Large ”.

  And the character candidate of the display mode changed by the display mode change means 25 is output on the display part 7 by outputting through the output means 26 (STEP207). Thus, each character candidate is displayed in a display mode based on the ratio of the number of predetermined points for each character candidate.

  Here, for example, the user decides whether or not to press the “decision” button displayed on the search screen of the display unit 7 of FIGS. 3 to 5 described later (STEP 208). When the “OK” button is pressed (YES), predetermined point information including a character received by the input receiving unit 21d and the next character candidate extracted by the character candidate extracting unit 23 as a list is displayed. It is displayed on the display unit 7 (STEP 209).

  On the other hand, if the user does not press the “OK” button in STEP 208 (NO), the user again selects characters from the character candidates displayed in the changed display mode and inputs them through the input unit 9. The operations of STEP 201 to 208 are repeated. In STEP 202, when the predetermined point search means 22 determines that the predetermined point is not stored in the storage unit 5, the search process ends there.

[1-3. Concrete example]
Next, a specific embodiment will be described below based on the display example of the display unit 7 in FIGS. The processing procedure corresponds to the flowchart of FIG. First, FIG. 3 is a search screen at the very first stage when a predetermined point to be searched for facilities or the like is input by a name input formula, and all character candidates that can be input as the first character are displayed. Yes.

  Here, in accordance with STEPs 201 to 208 in the flowchart of FIG. 2, characters “to”, “u”, “ki”, “yo”, “u”, “te”, “a” are input in order. A search operation in the middle of input will be described. As shown in FIG. 4, the display unit 7 has a screen example when characters are selected in the order of “to”, “u”, “ki”, “yo”, “u”, “te”, “a”. It is displayed.

  At this time, the predetermined point search means 22 searches the storage unit 5 for a predetermined point having a name including the inputted character “Tokyo” from the beginning (STEP 202). Then, when the predetermined point is searched by the predetermined point searching means 22 (YES), the character candidate extracting means 23 extracts the character candidate subsequent to “Tokyo” from the names of the predetermined points (STEP 203). . In the example of FIG. 4, 14 types of character candidates such as “A”, “I”, “O” are extracted.

  Here, the ratio calculating unit 24 calculates the number of each character candidate extracted by the character candidate extracting unit 23 from the predetermined points searched by the predetermined point searching unit 22 (STEP 204). Further, when the number calculating unit 24 calculates the number of predetermined points for each character candidate extracted through the character candidate extracting unit 23, the ratio calculating unit 24 calculates the ratio of the number of predetermined points for each character candidate to the sum of the number. (STE205). The total number of predetermined points for each extracted character candidate is displayed as “893” on the display unit 7 as an example, as shown in FIG.

  Here, FIG. 6 is an example of ratio data of the number of cases at a predetermined point for each character candidate calculated by the ratio calculation means 24. As shown in FIG. 6, when “A” is selected as the next character candidate, the number of the predetermined points is one, and the total number of the predetermined points searched at this time is 893, so the ratio to the whole is 0. Calculated as 1%. Similarly, when “n” is selected as the next character candidate, the number of predetermined points is 558, and the ratio to the total is calculated as 62.5%. This confirms that the possibility of selecting “n” as the next character candidate is higher than “a”.

  Then, based on the ratio of each character candidate calculated through the ratio calculation unit 24, the display mode changing unit 25 changes the display mode displayed on the display unit 7 of each character candidate to the display mode stored in the storage unit 5. Corresponding changes are made (STEP 206). For example, in the storage unit 5, the size of the character candidate to be displayed when the ratio of the number of predetermined points is 0% or more and less than 10% is “small”, and when the ratio is 10% or more and less than 50%, “medium”, When a display mode of “large” is stored when the ratio is 50% or more, as shown in FIG. 7, “n” is a large display mode, and “i” and “ri” are medium display modes. It becomes. Other character candidates are changed to a small display mode.

  And the character candidate of the display mode changed by the display mode change means 25 is output as shown in FIG. 5 on the display part 7 by outputting through the output means 26 (STEP207). Here, the user determines whether or not to press the “decision” button displayed on the display unit 7 (STEP 208). When the user presses the “decision” button (YES), the input receiving means 21d. The predetermined point information including the characters received in step 1 and the next character candidate extracted by the character candidate extraction means 23 as a list is displayed on the display unit 7 (STEP 209).

  According to the embodiment as described above, a character candidate with a high probability of being selected can be displayed larger than a character candidate with a low probability of being selected. It is possible to reduce the time required for selecting. On the other hand, even if it is a character candidate with the low probability of being selected, since it can select normally, operativity does not deteriorate.

[2. Other Embodiments]
In addition, this invention is not limited to said embodiment, The embodiment which changes and displays the said character candidate from a viewpoint of not a size of a character candidate but a color or a shape as a display mode is included. That is, the storage unit 5 stores in advance a display mode that is changed from the viewpoint of the color or shape of the character candidate based on the ratio of the number of predetermined points for each character candidate.

  For example, when the display mode is changed from the viewpoint of color, the color is blue when the ratio of the predetermined points for each character candidate is 0% or more and less than 10%, and the color is yellow when the ratio is 10% or more and less than 50%. This corresponds to the case where a three-level display mode such as red is stored when 50% or more. In the case of changing the display mode from the viewpoint of the shape, for example, when the ratio of the predetermined points for each character candidate is 0% or more and less than 10%, a triangle, 10% or more and less than 50%, a rectangle, 50 This corresponds to the case where a display mode is stored in which the circle and the character candidate can be changed in three stages when the percentage is greater than or equal to%.

  That is, in the flowchart in FIG. 2 above, based on the ratio for each character candidate calculated by the ratio calculation unit 24, the display mode changing unit 25 stores the display mode of each character candidate from the viewpoint of color and shape. The display mode is changed corresponding to the display mode (for example, the above-described three-stage data) stored in the unit 5. The display mode changing means 25 can also change the display mode by combining the elements of color, shape, and the size of the character candidate described in the present embodiment.

  Furthermore, the present invention also includes a display mode in which the blink pitch of each character candidate is adjusted based on the ratio of each character candidate calculated by the ratio calculation means 24. For example, when the calculated ratio is high, the blinking pitch of the character candidates to be displayed on the display unit 7 can be accelerated, and when the ratio is low, the blinking pitch can be delayed. The display mode changing means 25 can also change the display mode by combining the blinking pitch of each character candidate and each element of color, shape, and size.

Functional block diagram showing a configuration of an embodiment of the present invention The flowchart which shows the effect | action of embodiment of this invention Display screen example (1) in the embodiment of the present invention Display screen example (2) in the embodiment of the present invention Display screen example (3) in the embodiment of the present invention Example of registered number data corresponding to each character candidate in the embodiment of the present invention Display mode data example of each character candidate in the embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Control part 2 ... Dynamic RAM (DRAM)
3. Static RAM (SRAM)
4 ... ROM
5 ... Storage unit 6 ... Vehicle information acquisition unit 7 ... Display unit 8 ... Video RAM (VRAM)
DESCRIPTION OF SYMBOLS 9 ... Input part 10 ... User interface part 11 ... TV reception and processing part 12 ... FM multiplex reception and processing part 13 ... Beacon reception and processing part 14 ... Positioning part 20 ... Navigation part 21 ... Input reception means 22 ... Predetermined point search means 23 ... Character candidate extraction means 24 ... Ratio calculation means 25 ... Display mode change means 26 ... Output means M ... Main memory

Claims (9)

An input unit that receives an operation from a user, a storage unit that stores information on a predetermined point in advance, a display unit, and a function of searching for the predetermined point stored in the storage unit based on information input by the input unit In an information retrieval apparatus having
An input receiving means for receiving the name of the predetermined point for each character through the input unit;
A predetermined point search unit that searches the storage unit for a predetermined point that includes a character in the order received by the input receiving unit;
Character candidate extraction means for extracting a character candidate following the character received by the input receiving means from the names of the predetermined spots searched by the predetermined spot searching means;
A ratio calculation means for calculating a ratio of the number of predetermined spots having the character candidates in their names for each character candidate extracted by the character candidate extraction means out of the total number of the predetermined spots searched by the predetermined spot search means;
Display mode changing means for changing the display mode of the character candidates based on the ratio for each of the character candidates calculated by the ratio calculating means;
Output means for outputting the character candidates of the display mode changed by the display mode change unit to the display unit;
An information retrieval apparatus comprising:   The display mode changing unit changes at least one of a size, a color, and a shape of the character candidate based on the ratio for each character candidate calculated by the ratio calculating unit. Item 2. The information search device according to Item 1.   2. The information according to claim 1, wherein the display mode changing unit adjusts a blinking pitch based on the ratio of each character candidate calculated by the ratio calculation unit as the display mode of the character candidates. Search device. An input unit that receives an operation from a user, a storage unit that stores information on a predetermined point in advance, a display unit, and a function of searching for the predetermined point stored in the storage unit based on information input by the input unit In the control method of the information retrieval apparatus having,
Computer
An input receiving step of receiving the name of the predetermined point for each character through the input unit;
A predetermined point search step of searching from the storage unit for a predetermined point whose name includes characters in the order received in the input receiving step;
Among the names of the predetermined points searched by the predetermined point searching step, a character candidate extracting step of extracting a character candidate following the character received by the input receiving step;
A ratio calculation step of calculating a ratio of the predetermined number of points having the character candidate in the name for each character candidate extracted by the character candidate extraction step out of the total number of the predetermined points searched by the predetermined point search step;
A display mode changing step for changing a display mode of the character candidates based on the ratio for each of the character candidates calculated by the ratio calculating step;
An output step of outputting the character candidates of the display mode changed by the display mode change step to the display unit;
The control method of the information search device characterized by performing.   The display mode changing step changes at least one of a size, a color, and a shape of the character candidate based on the ratio for each character candidate calculated by the ratio calculating step. Item 5. A method for controlling an information retrieval apparatus according to Item 4.   5. The information according to claim 4, wherein the display mode changing step adjusts the blinking pitch based on the ratio for each character candidate calculated by the ratio calculation step as the display mode of the character candidates. Control method of search device. An input unit that receives an operation from a user, a storage unit that stores information on a predetermined point in advance, a display unit, and a function of searching for the predetermined point stored in the storage unit based on information input by the input unit In the control program of the information retrieval apparatus having
Computer
An input receiving process for receiving the name of the predetermined point for each character through the input unit;
A predetermined point search process for searching the storage unit for a predetermined point that includes characters in the order received in the input reception process in the name;
A character candidate extraction process for extracting a character candidate following the character received by the input reception process from the names of the predetermined points searched by the predetermined point search process;
A ratio calculation process for calculating a ratio of the predetermined number of points having the character candidates in their names for each character candidate extracted by the character candidate extraction process out of the total number of the predetermined points searched by the predetermined point search process;
A display mode change process for changing a display mode of the character candidates based on the ratio for each of the character candidates calculated by the ratio calculation process;
An output process for outputting the character candidates of the display mode changed by the display mode change process to the display unit;
A control program for an information search apparatus, characterized in that   The display mode changing process changes at least one of a size, a color, and a shape of the character candidate based on the ratio for each character candidate calculated by the ratio calculation process. Item 8. A control program for an information retrieval apparatus according to Item 7.   The information according to claim 7, wherein the display mode changing process adjusts a blinking pitch based on the ratio for each character candidate calculated by the ratio calculation process as a display mode of the character candidates. Search device control program.

Images