JP2005092551A - Document search device, document search method, and document search program - Google Patents

Abstract

To increase the speed and efficiency of browsing search result documents.
In displaying the text of a document selected from a search result list, the document search apparatus according to the present invention immediately after each search character string appearing in the text of the document, as shown in the figure. Set a link to the search string. By sequentially clicking on the search character string in the text, only the portion where the search character string appears in the search result document can be moved quickly and efficiently. Since the last search character string in the document is linked to the first search character string in the next document, there is no need to return to the search result list from the document body. It is also possible to set not only the document end / next document direction but also a link to the document head / previous document direction. This is particularly useful when the position where the search character string appears is far apart in the search result document, or when a large number of documents are obtained as search results.
[Selection] Figure 9

Description

  The present invention relates to a document search apparatus, a document search method, and a document search program that search for an electronic document that meets a search condition.

  Conventionally, when displaying the full text or summary of a document that has been found in a search, the character string specified as a search condition (hereinafter referred to as “search character string”) is a typeface with a characteristic such as bold or highlighted display. By emphasizing the above, there was a technique that made it easier to understand the main points and outline of the document.

  However, when the position where the search character string appears is far away in the search result document, the operator must follow the highlighted portion in the document by scrolling the screen. Since this operation is mainly performed from the mouse, it is easy to cause erroneous operations such as going too far to scroll a little. Even if this is not the case, highlighting due to differences in typefaces is difficult to see on the display, so some parts of the information you are looking for may be inadvertently overlooked.

  In addition, when a large number of documents are hit as a search result, select a document from the search result list, scroll the overview of the text, and then return to the list and select the next document. I had to repeat it many times.

  In order to eliminate the above-described problems caused by the conventional technology, the operator can quickly and efficiently browse a target location (specifically, the appearance position of a search character string) in a search result document. An object of the present invention is to provide a document search apparatus, a document search method, and a document search program.

  In order to solve the above-described problems and achieve the object, the document search apparatus according to the invention of claim 1 is a document search apparatus that searches for an electronic document that meets a search condition. An insertion position specifying means for specifying a position appearing in the text of the electronic document, a label inserting means for inserting a label for identifying the position at each position specified by the insertion position specifying means, and the label insertion Link insertion means for setting a link to each position where a label has been inserted by the means to a character string specified as the search condition in the body of the electronic document that first appears in the document head direction from that position. And.

  According to the first aspect of the present invention, the search character strings in the search result document are sequentially linked from the document head toward the document end.

  According to a second aspect of the present invention, there is provided the document search apparatus according to the first aspect, wherein the link insertion unit assigns a link to the position first appearing in the text of the electronic document. It is set to the character string that appears last in the body of another electronic document.

  According to the invention of claim 2, the search character strings in the search result document group are sequentially linked across the documents.

  According to a third aspect of the present invention, there is provided the document retrieval device according to the first or second aspect, further comprising: linking the respective positions into which the labels are inserted by the label insertion means; A second link insertion means is provided for setting a character string specified as the search condition in the text to appear first in the document end direction from the position.

  According to the invention of claim 3, the search character strings in the search result document are sequentially linked from the end of the document toward the beginning of the document.

  According to a fourth aspect of the present invention, there is provided the document search device according to any one of the first to third aspects, wherein the link insertion unit or the first link is displayed during the display of the text of the electronic document. When a character string to which a link is set by the link insertion means of 2 is specified, document display means for displaying a character string near a label that appears first in the document end direction or document head direction from the character string is provided. It is characterized by.

  According to the fourth aspect of the present invention, when a link in the text displayed on the screen is designated, the screen is scrolled so that the search character string immediately before or after the link is within the screen.

  According to a fifth aspect of the present invention, there is provided the document search device according to the fourth aspect, wherein the document display means starts from the character string when the character string is designated by the first operation. A character string near a label that first appears in the direction, and when the character string is designated by the second operation, a character string near the label that appears first in the document head direction from the character string is displayed. And

  According to the fifth aspect of the present invention, it is possible to switch whether the link is traced in the document end direction or the document head direction by the method of specifying the search character string in which the link is set.

  According to a sixth aspect of the present invention, there is provided the document search device according to the fourth or fifth aspect, wherein the document display means displays the character string when the character string is designated. A character string near a label that first appears in the document end direction or document head direction from the character string is displayed in a screen area different from the screen area.

  According to the invention of claim 6, the text near the link source and the text near the link destination can be browsed simultaneously on different screens.

  According to a seventh aspect of the present invention, there is provided a document search method for searching for an electronic document that meets a search condition, wherein a position where a character string specified as the search condition appears in the body of the electronic document is determined. An insertion position specifying step for specifying, a label inserting step for inserting a label for identifying the position at each position specified in the insertion position specifying step, and a position for inserting the label in the label inserting step. And a link insertion step of setting a link to a character string specified as the search condition in the body of the electronic document, which first appears in the document head direction from the position.

  According to the invention of claim 7, the search character strings in the search result document are sequentially linked from the document head toward the document end.

  The document search method according to the invention of claim 8 is the document search method according to claim 7, wherein, in the link insertion step, a link to the position that appears first in the text of the electronic document is displayed. It is set to the character string that appears last in the body of another electronic document.

  According to the invention of claim 8, the search character strings in the search result document group are sequentially linked across the documents.

  According to a ninth aspect of the present invention, in the document retrieval method according to the seventh or eighth aspect, a link to each position where a label is inserted in the label insertion step is further added to the electronic document. It includes a second link insertion step of setting a character string specified as the search condition in the text to appear first in the document end direction from the position.

  According to the invention of claim 9, the search character strings in the search result document are sequentially linked from the end of the document toward the beginning of the document.

  A document search method according to a tenth aspect of the present invention is the document search method according to any one of the seventh to ninth aspects, further comprising the step of inserting the link during the display of the text of the electronic document. Including a document display step of displaying a character string in the vicinity of a label that appears first in the document end direction or document head direction from the character string when a character string to which a link is set in the link insertion step of 2 is specified. It is characterized by.

  According to the tenth aspect of the present invention, when a link in the text displayed on the screen is designated, the screen is scrolled so that the search character string immediately before or after the link is within the screen.

  The document search method according to the invention of claim 11 is the document search method according to claim 10, wherein, in the document display step, when the character string is designated by the first operation, the character string is processed from the character string. A character string near a label that first appears in the direction, and when the character string is designated by the second operation, a character string near the label that appears first in the document head direction from the character string is displayed. And

  According to the eleventh aspect of the present invention, it is possible to switch whether the link is traced in the document end direction or the document head direction by the method for specifying the search character string in which the link is set.

  A document search method according to a twelfth aspect of the present invention is the document search method according to the tenth or eleventh aspect, wherein the character string is displayed when the character string is designated in the document display step. A character string near a label that first appears in the document end direction or document head direction from the character string is displayed in a screen area different from the screen area.

  According to the invention of claim 12, the text near the link source and the text near the link destination can be browsed simultaneously on different screens.

  According to the document search program of the invention of claim 13, the method described in any one of claims 7 to 12 is executed by a computer.

  According to the document search device, the document search method, and the document search program according to the present invention, the operator can specify the target location (specifically, the appearance position of the search character string) in the search result document when the text is displayed. There is an effect that browsing can be performed quickly and efficiently by following the automatically inserted link.

  Exemplary embodiments of a document search apparatus, a document search method, and a document search program according to the present invention will be explained below in detail with reference to the accompanying drawings.

  FIG. 1 is an explanatory diagram showing an example of a hardware configuration of a document search apparatus according to an embodiment of the present invention. In the figure, 101 indicates a CPU that controls the entire apparatus, 102 indicates a ROM that stores basic input / output programs, and 103 indicates a RAM that is used as a work area of the CPU 101.

  Reference numeral 104 denotes an HDD (hard disk drive) that controls reading / writing of data with respect to the HD (hard disk) 105 according to the control of the CPU 101, and 105 denotes an HD that stores data written according to the control of the HDD 104. Yes.

  Reference numeral 106 denotes an FDD (flexible disk drive) that controls reading / writing of data with respect to the FD (flexible disk) 107 according to the control of the CPU 101, and 107 denotes a detachable FD that stores data written according to the control of the FDD 106. Respectively.

  Reference numeral 108 denotes a CD-RW drive that controls reading / writing of data with respect to the CD-RW 109 according to the control of the CPU 101, and reference numeral 109 denotes a removable CD-ROM that stores data written according to the control of the CD-RW drive 108. RW is shown respectively.

  Reference numeral 110 denotes a cursor, menu, window, or display for displaying various data such as characters and images, 111 denotes a keyboard having a plurality of keys for inputting characters, numerical values, various instructions, and the like, and 112 denotes various types. A mouse that performs selection and execution of an instruction, selection of a processing target, movement of a mouse pointer, and the like is shown.

  Reference numeral 113 denotes a network I / F that is connected to a network such as a LAN or a WAN via a communication cable 114, and functions as an interface between the network and the CPU 101. Reference numeral 100 denotes a bus for connecting the above-described units. ing.

  Next, FIG. 2 is an explanatory diagram functionally showing the configuration of the document search apparatus according to the embodiment of the present invention. In the figure, reference numeral 200 denotes an input / output unit that accepts input of various search conditions including a search character string from the keyboard 111 or the like, and a list of searched documents or a document selected from the list by the mouse 112 or the like. This is a functional unit that displays the text of the text on the display 110. The search result list to be displayed on the screen is acquired from the list creation unit 203 described later, and the text of the document is acquired from the link insertion unit 205 described later.

  Reference numeral 201 denotes a document DB (database), which is a functional unit that holds information about a document to be searched. Here, the search target document is a group of hypertext on the network to which the present apparatus is connected (such as a home page on the Internet), and the document DB 201 in the apparatus stores attribute information (such as URL and last update date / time) of each document, It is assumed that an inverted file of words or phrases appearing in the document is registered.

Reference numeral 202 denotes a document search unit, which is a functional unit that searches for documents that match the search condition input from the input / output unit 200 among the documents registered in the document DB 201. As typical document search methods, (1) a Boolean search that simply determines conformity / nonconformity based on whether or not a search character string is included in a document,
(2) The input vector created from the search character string (group) is compared with the document vector created from the words and phrases contained in each document, and the documents that are close in distance (similarity) are matched documents. The vector space method,
Although there are various other variations and combinations, any search method by the document search unit 202 may be used as long as at least some character string is used as a search condition. Note that the document search unit 202 notifies the list creation unit 203 (to be described later) of document IDs that meet the search conditions.

  A list creation unit 203 is a function unit that extracts necessary items such as URL and title from the document DB 201 for each document notified from the document search unit 202 and creates a search result list, that is, a collection of links to conforming documents. is there. The search result list created here is output to the input / output unit 200.

  Reference numeral 204 denotes a document acquisition unit. When any document is selected from the search result list displayed by the input / output unit 200, the main body of the document is transferred to the network in response to an instruction from the input / output unit 200. It is a functional unit acquired from the other information processing apparatus above. As described above, since the main body of the document searched by the document search unit 202 exists in the network outside the apparatus, the document acquisition unit 204 is selected when a document is selected from the list, that is, when an instruction to display the text is given. To download the document (and images linked from the document). The downloaded document is output to the link insertion unit 205 described later.

  A link insertion unit 205 is a functional unit that sets a link to a search character string that appears immediately after each search character string in the document acquired by the document acquisition unit 204. This setting procedure will be described later in the flowchart. The document in which the link is embedded is output to the input / output unit 200.

  Next, FIG. 3 is a flowchart showing the procedure of the document search process in the document search apparatus according to the embodiment of the present invention. When the operator sets search conditions and instructs the apparatus to perform a search (step S301: Yes), the conditions are transferred from the input / output unit 200 that detects this to the document search unit 202, and the document search unit 202 receives the document DB 201. A document that meets the condition is searched from among the documents (step S302). Then, the list creation unit 203 notified of the result from the document search unit 202 creates a search result list (step S303), which is handed over to the input / output unit 200 and displayed on the display 110 (step S304).

  FIG. 4 is an explanatory diagram showing an example of a search result list created by the list creation unit 203 and displayed by the input / output unit 200. In the illustrated list, document titles that match the search conditions are listed, and URLs to the corresponding documents are embedded in the individual titles. Here, it is assumed that “Awa Odori” and “Enbujo” are designated as search character strings.

  Next, when it is detected that the display of the text is instructed for any of the search result documents, that is, when any of the titles in FIG. 4 is clicked with the mouse 112 (step S305: Yes), the input / output unit 200 is detected. Notifies the document acquisition unit 204 of the URL embedded in the title, and the document acquisition unit 204 that receives the URL acquires the main body of the corresponding document from the information processing apparatus specified by the URL (step S306). Then, the link is inserted into the search character string in the text by the link insertion unit 205 that has received this document from the document acquisition unit 204 (steps S307 to S309).

  That is, the link insertion unit 205 first identifies a position where a character string designated as a search condition, here “Awa Odori” or “Enbujo”, appears in each document obtained as a search result (step S307). This position can be specified by referring to the above-described inverted file in the document DB 201. However, since the information of the inverted file may not reflect the latest state of the document, it can be re-checked from the actually downloaded document. You may make it search a search character string.

  Next, the link insertion unit 205 inserts a serial number label at the position specified above (immediately before each search character string) (step S308). In the case of HTML, this label is a tag including serial numbers such as “<A NAME=“0001”>” and “<A NAME=“0002”>”. Next, the link insertion unit 205 sets the link to the inserted label to the search character string that first appears in the document head direction of the search character string to which the label is added (step S309).

  For example, if the text of “Toku ○ City Tourism Association” appearing in the list of FIG. 4 is as shown in FIG. 5, the document after the link insertion by the link insertion unit 205 is as shown in FIG. Become. The illustrated document includes the search character string “Awa Odori” on the sixth line, and the search character string “Enbujo” on the eighth and ninth lines. For example, the label “<A NAME=”0002”>” is inserted immediately before the “dance hall” on the 8th line, and the search character string added with the label first appears back in the document head. “<A HREF=“#0002”>” and “</A>” are inserted before and after the “Awa Odori” on the 6th line to indicate the link to the “Enjo” on the 8th line.

  6 is output from the link insertion unit 205 to the input / output unit 200 and displayed on the display 110 (step S310 in FIG. 3). FIG. 7 is an explanatory diagram showing an example of the document displayed by the input / output unit 200 (document display example shown in FIG. 6). The label inserted by the link insertion unit 205 does not appear on the screen, and the link is expressed as an underline of the search character string. Then, for example, when “Awa Odori” on the first line is clicked, the “dance hall” on the third line is cued by the input / output unit 200. As a result, the screen displayed is scrolled down by two lines to FIG. As shown.

  FIG. 9 is an explanatory diagram schematically showing the relationship between search result documents after the link is inserted by the link insertion unit 205. As mentioned above, the “Awa Odori” on the first line of the “Toku ○ City Tourism Association” is the “Dance Hall” on the third line, and the “Dance Hall” on the third line is the “Dance Hall” on the fourth line. The “Enbujo” on the 4th line is linked to the “Enbujo” on the 1st line of “Awa Odori Encyclopedia” because no more search character strings are included in the document. In this way, the search character strings in the document obtained as a search result are connected in a daisy chain with links, and the last search character string of the last document (here “Awa Odori Schedule & Performing Hall Information” 6 From the “Dance Hall” on the line, a link is made to the first search character string of the first document (here “Awa Odori” on the first line of “Toku ○ City Tourism Association”).

  As described above, according to the document search apparatus, the document search method, and the document search program according to the present invention, search character strings in the document obtained as a search result are sequentially linked by a link, and by clicking the character string, Instantly move to the search string behind. Further, since it is possible to move from one document to the next by sequentially following the links, there is no need to return to the search result list one by one as in the prior art. As a result, even when the appearance positions of the search character strings in the document are dispersed or the number of documents hit in the search is large, only the target portion can be browsed quickly and efficiently.

  In the above-described embodiment, the link is embedded only in the character string that completely matches the search character string. However, for example, “Awaodori” or the like, the character that is substantially the same or similar even if the notation differs from the search character string. Columns may also be incorporated into the chain of links.

  Also, the link embedded in the document does not necessarily have the format exemplified above. For example, in the example of FIG. 6, the link can be traced in the direction of the document head / previous document using the “return” function of the browser or the like. Only movement in the next document direction is possible. Therefore, not only the forward direction but also the link in the reverse direction is embedded in the document so that the link can be traced in either the document end / next document direction or the document head / previous document direction. Good.

In this case, for example, during normal click, it moves to the end / next document direction,
-Click while pressing a special key (Shift key, Ctrl key, etc.)-Select a predetermined command from the context menu opened by right-click-Specific mouse gesture (move the mouse toward the document head while holding down the button, etc.) )
If there is, etc., it moves in the direction of the document head / previous document. In other words, the search character string in the document can be moved in any direction by switching the designation method. In order to realize this, the link insertion unit 205 has a function of inserting forward and reverse links, and the input / output unit 200 that receives various instructions from the operator has a function of determining the moving direction. You can do it.

In the above-described embodiment, the search character string in the document is sequentially moved by clicking the mouse 112. In addition, the point by the mouse 112 (only the mouse pointer is superimposed on the search character string).
It may be possible to move to the next search character string by pressing the Tab key or the cursor key on the keyboard 111 or by an instruction by voice.

  Also, as shown in FIGS. 7 and 8, the window is not scrolled before and after the movement, but a window that displays the vicinity of the search character string of the link source is left and a new window is opened and the link destination is displayed. May be displayed (the window of FIG. 7 and the window of FIG. 8 are simultaneously displayed). As a result, the context before and after the destination can be confirmed in a separate window in advance.

  In the above-described embodiment, the search of the document and the display of the searched document are performed in the same apparatus. For example, among the units shown in FIG. 2, the input / output unit 200 is the client, and the other units are the server. You may make it prepare for. In this case, if the client has a general browser that can input and send search conditions, display a list of search results and the text of relevant documents, or jump to the link destination embedded in the displayed text, etc. Good.

  The document search method described in the present embodiment can be realized by executing a program prepared in advance on a computer such as a personal computer or a workstation. This program is recorded on a computer-readable recording medium such as a hard disk, a flexible disk, a CD-ROM, an MO, and a DVD, and is executed by being read from the recording medium by the computer. The program may be a transmission medium that can be distributed via a network such as the Internet.

  As described above, the document search device, the document search method, and the document search program according to the present invention are useful for displaying the text of the search result document in an easy-to-understand manner, and in particular, the search character string appears in the document. This is suitable when the positions are far apart or when a large number of documents are obtained as search results.

It is explanatory drawing which shows an example of the hardware constitutions of the document search apparatus concerning embodiment of this invention. It is explanatory drawing which shows functionally the structure of the document search device concerning embodiment of this invention. It is a flowchart which shows the procedure of the document search process in the document search apparatus concerning embodiment of this invention. It is explanatory drawing which shows an example of a search result list. It is explanatory drawing which shows an example (before link insertion) of the text of a search result document. It is explanatory drawing which shows an example (after link insertion) of the text of a search result document. It is explanatory drawing which shows the example of a display of the document shown in FIG. FIG. 8 is an explanatory diagram illustrating a display example of a document immediately after clicking “Awa Odori” on the screen illustrated in FIG. 7. It is explanatory drawing which shows typically the relationship between the search result documents after link insertion.

Explanation of symbols

100 bus 101 CPU
102 ROM
103 RAM
104 HDD
105 HD
106 FDD
107 FD
108 CD-RW drive 109 CD-RW
110 Display 111 Keyboard 112 Mouse 113 Network I / F
114 Communication cable 200 Input / output unit 201 Document DB
202 Document Search Unit 203 List Creation Unit 204 Document Acquisition Unit 205 Link Insertion Unit

Claims (13)

In a document search device that searches for electronic documents that meet search conditions,
An insertion position specifying means for specifying a position where the character string specified as the search condition appears in the text of the electronic document;
Label insertion means for inserting a label for identifying the position at each position specified by the insertion position specifying means;
A link to each position where the label is inserted by the label insertion means is set to a character string specified as the search condition in the body of the electronic document that first appears in the document head direction from that position. Link insertion means;
A document search apparatus comprising:   The link insertion means sets a link to the position that appears first in the body of the electronic document to the character string that appears last in the body of an electronic document different from the electronic document. The document search device according to claim 1.   Further, a link to each position where the label is inserted by the label insertion means is a character string specified as the search condition in the body of the electronic document, which appears first from the position toward the end of the document. 3. The document search apparatus according to claim 1, further comprising second link insertion means for setting.   Further, when a character string to which a link is set by the link insertion means or the second link insertion means is specified during the display of the text of the electronic document, the character string is moved in the document end direction or document head direction. The document search apparatus according to any one of claims 1 to 3, further comprising a document display unit that displays a character string near a label that appears first.   When the character string is designated by the first operation, the document display means specifies the character string near the label that appears first in the document end direction from the character string, and the character string is designated by the second operation. 5. The document search apparatus according to claim 4, wherein a character string near a label that first appears in the document head direction from the character string is displayed.   The document display means, when the character string is specified, near the label that first appears in the document end direction or document head direction from the character string in a screen area different from the screen area in which the character string is displayed The document search apparatus according to claim 4, wherein the character string is displayed. In a document search method for searching for electronic documents that meet search conditions,
An insertion position specifying step for specifying a position where the character string specified as the search condition appears in the text of the electronic document;
A label insertion step of inserting a label for identifying the position at each position specified in the insertion position specifying step;
A link to each position where a label is inserted in the label insertion step is set to a character string specified as the search condition in the body of the electronic document that first appears in the document head direction from that position. Link insertion process;
A document retrieval method comprising:   In the link insertion step, the link to the position that appears first in the body of the electronic document is set to the character string that appears last in the body of an electronic document different from the electronic document. The document search method according to claim 7.   Further, a link to each position where a label is inserted in the label insertion step is a character string specified as the search condition in the body of the electronic document that appears first in the document end direction from the position. 9. The document search method according to claim 7, further comprising a second link insertion step of setting.   Further, when a character string to which a link is set in the link insertion step or the second link insertion step is specified during the display of the body of the electronic document, the character string is moved in the document end direction or document head direction. The document search method according to claim 7, further comprising a document display step of displaying a character string near a label that appears first.   In the document display step, when the character string is designated by the first operation, the character string near the label that first appears in the document end direction from the character string, the character string is designated by the second operation. 11. The document search method according to claim 10, further comprising: displaying a character string near a label that appears first in the document head direction from the character string.   In the document display step, when the character string is specified, the vicinity of the label that appears first in the document end direction or document head direction from the character string in a screen area different from the screen area in which the character string is displayed The document search method according to claim 10 or 11, wherein the character string is displayed. A document search program for causing a computer to execute the method according to any one of claims 7 to 12.

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