JPH0210987B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device that can effectively and appropriately retrieve and read desired information from a large-capacity storage device.

In recent years, various types of information have been filed in large-capacity storage devices of computer systems and read out and used as desired. In this case, since there is a large amount of filed information, it is common practice to attach keywords to each piece of information and use these keywords to quickly search for information. However, some information needs to be kept secret from people other than those involved, and in order to ensure its confidentiality, a password is set separately from the above-mentioned keywords. However, setting appropriate keywords and passwords takes time and effort, and if the keywords are not appropriate and the correspondence with the information cannot be determined, there is the inconvenience of having to investigate all of the stored information. Ta. This investigation is virtually impossible when the stored data is a large amount of image data, etc., because the processing time required is extremely large. Therefore, it has been difficult to easily and appropriately search for desired information, read it out, and use it while ensuring the confidentiality of the information.

The present invention was made in consideration of these circumstances, and its purpose is to simplify and appropriately set keywords and passwords, thereby sufficiently ensuring the confidentiality of information, and An object of the present invention is to provide a highly practical information retrieval device that facilitates retrieval.

Further, the present invention enables so-called quick-look of filed information using the password, thereby improving the efficiency of information retrieval.

The outline of the present invention is to use part of the information input together with a keyword, use this as a password, and search for desired information by pairing this password with the above keyword. The device is designed to ensure that

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

FIG. 1 is a schematic diagram of an embodiment of the apparatus, in which an image retrieval system is shown. drum scanner 1
For example, the information input from the computer is image data of sizes X and Y as shown in FIG. 4. The input of this image data is performed together with the input of a keyword by operating the keyboard 5, and this keyword is written and stored in the storage device 3 together with the image data after passing through the keyword generation section 6. As shown in FIG.
The specified coordinates x _{s and} y _s are taken as the starting point from the image data of Y, information of sizes x ₁ and y ₁ is extracted, and this is generated as a password. That is,
The password generation unit 4 specifies the coordinates using random numbers x _s and y _s generated by the random number generator 4a, or specifies the coordinates by operating the keyboard 5, and uses the information extraction unit 4b to specify the coordinates. It is configured to cut out a part of image data of size x _l and y _l from x _s and y _s . A part of this extracted data is converted into a predetermined format by the format conversion section 4c, and this is configured to be output as a password. As a result, a password paired with the keyword stored in the keyword generation section 6 is generated by cutting out a part of the input image data. The keywords and passwords obtained in this manner are respectively led to the magnetic card writing section 7 and recorded on the magnetic card in the format shown in FIG. 4, for example, to the user who requires the input image data. Output for. In addition, here we will exemplify the output to a magnetic card, but it is of course possible to output to a punch card, mark card, or something else, and the output information includes keywords, passwords, etc. It is sufficient to provide the coordinate data x _s , y _s of the part where .

While the keyword and password are generated in this manner, a plurality of pieces of information (image data) are written to the storage device 3 together with the keyword and password and filed.

Now, when searching for and reading out desired information among the filed information, it is performed as follows. That is, a keyword and a password specifying desired information are input from the magnetic card reading section 8 from the magnetic card storing the keyword and password. The keywords and passwords input in this manner are provided to the keyword extraction section 9, the password conversion section 10, and the collation section 11, respectively.
The keyword extraction unit 9 searches for keywords stored in the storage device 3 according to the given keyword, and sends information (image data) indicated by the corresponding keyword to the storage device controller 2.
The data is read out via the . As shown in FIG. 5, in the matching section 11, the x _s , y _s cutting section 11a detects the password coordinate position x _s , y _s and provides this to the information cutting section 11b. As a result, the information cutting unit 11b selectively extracts a part of the information from the position indicated by the coordinates x _s , y _s to the size x _l , x _l from the image data read out as described above. This is read out and given to the comparing section 11c.

On the other hand, in this collation section 11, a password extraction section 11d extracts and detects the inputted password, and reversely converts the format of this through a format conversion section 11e. As a result, the password, which had been converted to a format suitable for recording on a magnetic card, is returned to its original format. This password is then given to the comparison unit 11c, and a match is detected with the password extracted from the image data. This match detection result is displayed on the display 13 via the display controller 12. When the information indicated by the keyword and read out by specifying the coordinates matches the password, it is assumed that the desired information has been searched and specified by the keyword and the password, and the desired information is searched and specified by the keyword and the password. is output. The sequence of information retrieval using keywords and passwords is controlled by the control device 14, and the control flow is as shown in FIG. 6, for example.

Thus, even if a certain piece of information is read from the storage device 3 using a keyword, it is determined whether or not it has been read correctly by comparing a portion of that information with the password. Therefore, the information is not read out inadvertently, and its confidentiality is sufficiently ensured. Moreover, in this case, since part of the information is used as it is as a password, the reliability of information retrieval is also high. Furthermore, since a part of the information is used as a password in this way, it can be easily made appropriate, and in combination with a heading keyword, it becomes possible to perform an effective information search. Further, in this case, there is no need for a separate memory for storing passwords, so it becomes possible to record information with high density in the storage device 3.

By the way, if there is not enough information to search for the desired information using only the keywords input from the magnetic card, a so-called quick look of the password is performed as follows. That is,
Password conversion unit 1 for passwords on magnetic cards
0 and display it on the display. By simply checking a portion of the information indicated by this password, the contents can be confirmed. Therefore, if the displayed content is the desired one, by giving a predetermined instruction via the keyboard 5, the corresponding storage information can be read out from the storage device 3. Also, if the displayed content is not what you are looking for, displaying the password for the next keyword will make it easier to obtain the desired password, which will allow you to search for information more effectively. Become.
Therefore, even if there is a large amount of information with the same keyword, the desired information can be easily and accurately identified and read by quickly and easily entering the password. In other words, the password itself can be effectively used as search information, and appropriate information searches can be performed here.

As described above, according to the present device, together with the set keyword, a part of the information to which this keyword is attached is determined as a password, and an information search is performed based on the keyword and password. Therefore, no unnecessary effort is required to properly set keywords and passwords, and the confidentiality of information can be sufficiently ensured. Furthermore, since a quick look can be easily performed on a large amount of information, the device can be used effectively.
Furthermore, since keywords and passwords are recorded on a medium, there are also effects such as simplification of search operations.

Note that the present invention is not limited only to the above embodiments. In the embodiment, the storage information has been described as image data, but the present invention is also effective for other large-capacity data such as graphic information and text information. Further, the input device is not limited to a drum scanner, but may also be a magnetic tape, a card, or the like. Furthermore, other types of checking control forms can be adopted. In short, the present invention can be implemented with various modifications without departing from the gist thereof.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a schematic configuration diagram, Fig. 2 is a diagram showing the relationship between information and passwords, and Fig. 3 is a configuration diagram of a password generation section.
FIG. 4 is a diagram showing the output format of keywords and passwords, FIG. 5 is a diagram showing the configuration of the verification section, and FIG. 6 is a diagram showing an example of the verification control flow. DESCRIPTION OF SYMBOLS 1...Drum scanner, 2...Storage device controller, 3...Storage device, 4...Password generation section, 5...Keyboard, 6...Keyword generation section, 7...Magnetic card writing section, 8...Magnetic card Reading section, 9...Keyword extraction section, 10...
...Password conversion section, 11... Verification section, 12...
Display controller, 13... Display, 14... Control device.

Claims (1)

[Scope of Claims] 1. A storage device that stores input information with keywords added thereto, and a storage device that extracts a part of this input information as a password and records it on a predetermined recording medium together with the keyword to provide information to an information searcher. An output device for outputting, an input device for reading and inputting keywords and passwords recorded on the above-mentioned predetermined recording medium, and searching the storage device according to the keywords read by the input device, and searching the storage device for searching the keywords with the corresponding keywords. a verification device that compares a part of the information extracted as the password for the information sought by this means with the password read by the input device; An information retrieval device comprising: means for reading out information about which a password match has been detected from the storage device. 2. The information search device according to claim 1, wherein the information is image data, and the password is determined as image data of a predetermined area.