JPH02242431A - Expert system - Google Patents

Abstract

PURPOSE:To simply display a target dynamically changing when a manual text is referred by inserting an object being related to the object of a targeted model to the manual text relating to an inference process with respect to a certain object. CONSTITUTION:A processor part 1 is comprised of an object insertion means 2 to insert the object related to the object of a problem targeted model to the manual text, an inference engine 3 to perform inference, and an explanatory function 4 to explain the result of the inference to perform a question and answer processing. Thereby, since the object dynamically changing can be referred without using another interface when the manual text is referred, correspondence relation between the objects can be easily recognized. Also, since it is possible to simply display explanation in detail or by stages with respect to a displayed manual text, etc., the manual text can be easily understood.

Description

[Detailed description of the invention] [Industrial application field] This invention is Regarding.

[Prior Art] An expert system is a computer system that uses the knowledge of experts as a knowledge base and uses inference functions to solve problems in the same way as experts.

In addition to displaying the conclusion obtained through inference, an expert system must also explain the process leading to the solution of the problem and the basis for the decision. It is provided.

[Problem to be solved by the invention] By the way, in the explanatory function of conventional expert systems, the explanatory text that can be displayed regarding the inference process is only declarative knowledge (facts) about a certain object (subject), and the explanatory text that can be displayed regarding the inference process is If you wanted to refer to objects that changed over time, you had to use other interfels. In addition, if the explanatory text contains concepts or expressions that are difficult to understand, such as words that require further explanation,
Since no explanations were displayed, there was a problem in that it took time to understand the explanations.

The purpose of this invention is to provide an expert system that can easily display dynamically changing objects, detailed explanations, etc. when understanding declarative knowledge explanations. .

[Means for Solving the Problems] In order to solve the above problems, the expert system according to the present invention inserts object 1~ which is C-typed in relation to object 1~ of the problem model into the explanatory text regarding the inference process. [object to be inserted]・An insertion means is provided.

(Operation) Objects and relational materials (objects) of the target model can be inserted into the explanatory text of declarative knowledge about a certain object, so when referring to the explanatory text, you can easily refer to dynamically changing objects. Furthermore, it is possible to easily display a more detailed explanation or a step-by-step explanation of the displayed explanatory text.

(Embodiment) An embodiment of the expert system according to the present invention will be described below.

FIG. 1 is a block diagram showing the configuration of a workstation for realizing an expert system according to the present invention.

In FIG. 1, the processor unit 1 includes an object 1-insertion unit 2 for inserting an object related to the object of the problem model into an explanatory text regarding the inference process in order to perform question-and-answer processing; It is composed of an inference engine 3 for explaining the inference, and an explanation function 4 for explaining the result of the inference, and these are composed of peripheral circuits centered on a CPU (central processing unit).

The input/output section 5 has a display 6 and a
a display control unit 7 for controlling the explanatory text and displaying explanatory texts, windows, etc., a keyboard 8 for inputting text information for the explanatory text, a mouse as a pointing device for indicating objects 1 to 1 in the explanatory text, and a keyboard. 8 and a keyboard/mouse control section 10 that performs input/output control of commands and data inputted from the mouse 9.

The storage unit 11 includes a disk 1 in which a knowledge base is stored.
2, a disk control unit 13 that controls data input/output to the disk 12, and a main memory 14 that stores instructions and data input from the O8 and the input/output unit 5, and a text editing editor. has been done.

Note that the processor section 1, input/output section 5, and storage section 11
are commonly connected to a system bus 15 consisting of a plurality of buses for controlling data, addresses, and the like.

Next, the processing procedure of Broset 4 No. 1 when inserting an object into an explanatory text using a text editing editor is explained using the block diagram in Fig. 1 and Figs. 2 to 2 which show screen display examples.
This will be explained based on the flowchart in FIG. 7 while referring to FIG.

FIG. 2 shows the editor editing the description of the instance "package". This editor displays a title bar menu (not shown), and the user selects a corresponding item from the menu.

From the menu, select "I nse r t"
When "Q bj e c t" is selected (step 101), a subwindow 2 for input is displayed above the editor.
1 (step 102). When the object name is written here (step 103), it is determined whether the written object exists (step 10).
4). FIG. 3 shows a state in which the object name "symbol" has been written.

If the written object actually exists, then a message prompting the input of the slot name is displayed in the sub-window 21 (step 105).

In this example, we are inputting the character "symbol" that exists as an instance, so as shown in Figure 4, "
Please enter the slot name. ” message is displayed in the subwindow 21.

Next, after displaying the subwindow 21 in step 105, it is determined whether one or more characters of the slot name have been input (step 106). Here, when a slot name is input, it is determined whether the slot exists (step 107). If a slot exists, a pair of character images for object i~ and thrower 1 is created (step 108), and the created character image is inserted at the caret 1~ position in the editor (step 109).

Note that if in step 104 an object 1 to name that does not exist as a class or instance is written, and if in step 107 the slot name does not exist, an error message will be displayed.
0), the process is stopped (step 111).

On the other hand, if step d) is in step 106 and there is no input for the thrower 1 name, create a character image for object i (step 112), and insert the created character image at the caret position in the editor (step 109). .

FIG. 5 shows an example of a character image of an object name displayed, and FIG. 6 shows an edited explanatory text. Objects inserted into the explanatory text are shown surrounded by a rectangular frame. Once you have finished editing, select "it 5ave &close" from the editor's tie 1 - lever menu, and write the description of the instance "package" to disk 1.
Save to 2.

Next, the processing procedure of the processor unit 1 when displaying the state of the object included in the explanatory text or the explanatory text will be explained using the block diagram in Fig. 1 and Figs. 8 to 8 showing screen display examples. This will be explained based on the flowchart of FIG. 11 while referring to FIG.

When an explanatory text about "package" as shown in Fig. 8 is displayed, when an object in the explanatory text is selected with the mouse (step 201), a menu (not shown) is opened (step 202), and from the menu '(n
It is determined whether "T n sp ect" is selected (step 203).Here, "T n sp
e c t ” is selected, it is determined whether the selected object 1 exists (step 204
). If object 1- exists, display the current state of that object in the inspect window (
Step 205). A specific example of the inspection window is shown in FIG. 81. In step 204, if object 1 does not exist, an error message is displayed (step 206).

On the other hand, in step 203, "l" is selected from the menu.
If ``n sp ec t'' is not selected, it is then determined whether ``'W'h a t'' has been selected from the menu (step 207).
When "t" is selected, it is determined whether an explanatory text exists for the object 1- (step 208), and if an explanatory text exists, an explanatory text about the object is displayed (step 209). At this time, if the object 1~ is an instance, the current value of each thrower 1~ is displayed, and if the object 1~ is a class, the window that displays the hierarchical relationship between classes and the current value of the class slot (not shown) Opened ``Zezu''.

A specific example of the displayed explanatory text is shown in FIG.

In this example, an explanatory text about the "symbol" is displayed.

Note that in step 208, if the object does not exist, an error message is displayed (step 2
06).

In this embodiment, when extracting the explanatory text, a hash table is used as a means for associating the object with the explanatory text. Objects in the editor have object and slot values as fields. When you click on object 1~ with the mouse, the hash table is searched using the object and slot values as keys, and the file name where the description is stored and the address where the pig is stored on the file are found. . Then, search the disk using the file name and address to obtain the desired description. Note that if the address cannot be found even after searching the hash table, an error message will be displayed.

Next, when displaying the history of the inference process, a case will be described in which an object associated with the text information is inserted.

When displaying explanations related to inference processes such as How and Why, if an object (or a pair of object 1 and thrower 1) for which an explanation has already been registered is included, the A object is displayed. (or a pair of dots) as a link icon, and by selecting the link icon, the registered explanatory text can be displayed immediately. That is, by selecting the link icon of the object in the explanatory text regarding the inference process, it becomes possible to explain the object using the What method of the above-described embodiment.

Figure 12 shows the processor unit 1 when displaying the inference history.
This is a flowchart 1- showing the processing procedure.

By starting the HOW or Why command, disk 1
2 or the data to be displayed is searched from the inference history group recorded in the main memory 1/I (step 301), and the inference history is displayed (step 302). Step 30
In step 2, a subroutine is called and an inference history is created.

Next, the processing procedure of the processor unit when creating an inference history will be explained based on flowchart t-1- in FIG. 13.

In the following explanation, the dot pair (object, thrower h) is represented by (car, cdr).

First, it is determined whether the data to be displayed is a dot pair or not (step 401). If the data is a dot pair, the ca
Determine whether r is an object (step 402
). If car is an object, then cd
Determine whether r is a slot name (step 403)
. Here, if the cdr is a thrower (・name), it is determined whether the explanatory text is registered or not (Step 40/1),
If an explanatory text is registered, a pair of dots is displayed as a link icon (step 405). Then, it is determined whether there is any remaining data (step 406).
), repeat the above operation until there is no remaining data.

On the other hand, if cdr is not the thrower 1 to name in step 403, and if no explanatory text is registered in step 404, it is determined whether the explanatory text of car is registered (step 407), and if it is registered. displays car as a link icon, and displays the rest as character strings (S1 to SRING) (step 408).

Also, in step 402, car is an object]
If not, and if the description of car is not registered in step 407, the character string (sling)
(Step 409).

Next, in step 401, if the data is not a dot pair, it is determined whether it is an object (step 410). If it is an object, determine whether a description has been registered (step 4.11).
If it is registered, it is displayed as a link icon (step 412).

Further, if it is not an object in step 410, and if no explanatory text is registered in step 411, it is displayed as a character string (step 413).

〔Effect of the invention〕

In the expert system I according to the present invention described above, an object related to the object of the problem model is inserted into the explanatory text regarding the inference process, so when referring to the explanatory text, Since dynamically changing objects can be referenced without using any other interface, the correspondence between objects can be easily understood. In addition, if the explanatory text contains concepts or expressions that are difficult to understand, such as words that require further explanation, it is possible to easily display related explanations and step-by-step explanations. It is possible to realize a user interface that is easy to understand and easy to use.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a workstation for realizing an expert system according to the present invention, FIGS. 2 to 6, and 8 to 10 are explanatory diagrams showing examples of screen displays, FIG. 7 is a flowchart 1 to 1 showing the processing procedure of the processor unit when inserting an object into the explanatory text, and FIG. FIG. 12 is a flowchart showing the processing procedure of the processor section 70--, which shows the processing procedure of the processor section when displaying the inference history.
17-1 to 13 are flowcharts showing the processing procedure of the processor unit when creating an inference history. DESCRIPTION OF SYMBOLS 1... Processor part, 2... Object insertion means, 3... Inference engine, 4... Explanation function, 5...
Input/output section, 6...Display, 8...Keyboard, 9...Mouse, 11...Storage section, 12...Disk, 1/lI...Main memory.

Claims (1)

[Scope of Claims] An expert system comprising a storage section for storing text information, a display section for displaying the text information, and an instruction section for selecting the text information displayed on the display section, comprising: An expert system comprising an object insertion means for inserting an object related to an object of a problem model into an explanatory text regarding a process.