JP2003044281A - Knowledge base editing method, knowledge base editing device, knowledge base editing program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate a general purpose rule and to facilitate system management. SOLUTION: When a new frame is added to a hierarchy between a frame referred to in a rule and a high-order frame to which the frame directly belongs, whether or not the new rule of turning the frame referred to in the rule to the new frame is established under the same condition as that of the rule is discriminated, and when the new rule is established under the same condition as that of the rule, the rule is replaced with the new rule. Or, when the new rule is added to the low-order hierarchy of the frame and the frame referred to in the rule, whether or not the new rule of turning the frame referred to in the rule to the new frame is established under the same condition as that of the rule is discriminated, and when the new rule is established under the same condition as that of the rule, the rule is replaced with the new rule.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knowledge base editing method, a knowledge base editing apparatus, a knowledge base editing program and a recording medium, and more particularly to a general-purpose automatic rule generation technique.

[0002]

2. Description of the Related Art In the conventional expert system and rule-based system, knowledge is input by an IF (conditional part) -THEN (conclusion part) rule, and a rule that satisfies the conditional part is selected to execute the conclusion part. Was becoming. Also, there is a system in which knowledge that stores static hierarchy / relationships is stored in frames. The above-mentioned conventional expert system can make a professional judgment as to what is described in the rule and the frame.

[0003]

However, the rules of the conventional expert system described above can only determine the relationship with what is strictly described in the condition section. There is a problem that even if a human being can process a certain rule as being similar, the rule cannot be applied to a slightly different target. Further, in order to expand the applicable field, the number of rules becomes enormous and the management becomes difficult. Therefore, an object of the present invention is to automatically generate a general-purpose rule, expand the applicable field even if the number of rules is reduced, and to facilitate system management. An object is to provide a device, a knowledge base editing program, and a recording medium recording the program.

[0004]

In order to solve the above problems, a knowledge base editing method is a knowledge base editing method for editing a knowledge base including a frame having a hierarchical structure and a rule referencing the frame, When a new frame is added to the layer between the frame referred to in the rule and the upper frame to which the frame directly belongs, the frame referred to in the rule is set as the new frame. A determination process for determining whether or not a new rule is satisfied under the same conditions as the rule, and in the determination, if the new rule is satisfied under the same conditions as the rule, the rule is changed to the new rule. And a replacement process of replacing with. According to the above configuration, the determination process refers to the rule when the new frame is added to the hierarchy between the frame referred to in the rule and the upper frame to which the frame directly belongs. It is determined whether or not a new rule in which the existing frame is a new frame is satisfied under the same conditions as the above rule. The replacement process is
In the determination, if the new rule is satisfied under the same conditions as the rule, the rule is replaced with the new rule.

The knowledge base editing method is a knowledge base editing method for editing a knowledge base including a frame having a hierarchical structure and a rule referring to the frame, and a frame referred to in the rule, When a new frame is added to a lower layer of a frame, a determination process of determining whether or not a new rule in which the frame referred to in the rule is the new frame is satisfied under the same condition as the rule. In the determination, a replacement process of replacing the rule with the new rule when the new rule is satisfied under the same condition as the rule is performed. According to the above configuration, in the determination process, when the frame referred to in the rule and the new frame added to the lower layer of the frame, the frame referred to in the rule is set as the new frame. It is determined whether the rule is satisfied under the same conditions as the rule.
The replacing step replaces the new rule with the new rule when the new rule is satisfied under the same condition as the rule in the determination.

In this case, when replacing the rule with a new rule, the rule is set to the invalid state and
The new rule may be associated with the rule in case of re-enabling.

Further, the knowledge base editing apparatus is a knowledge base editing apparatus for editing a knowledge base including a frame having a hierarchical structure and a rule referring to the frame, and the frame referred to in the rule and the relevant frame. When a new frame is added to a layer between itself and a higher-level frame, a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule. And a replacement unit that replaces the new rule with the new rule when the new rule is satisfied under the same conditions as the rule in the determination. There is. According to the above configuration, the determining unit refers to the rule when the new frame is added to the layer between the frame referred to in the rule and the upper frame to which the frame directly belongs. It is determined whether or not a new rule in which the existing frame is a new frame is satisfied under the same conditions as the above rule. In the determination, the replacement unit replaces the new rule with the new rule when the new rule is satisfied under the same conditions as the rule.

Further, in a knowledge base editing apparatus for editing a knowledge base including a frame having a hierarchical structure and a rule referring to the frame, a frame referred to in the rule and a new frame in a lower layer of the frame. When a rule is added, a determination unit that determines whether or not a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule; And a replacement unit that replaces the rule with the new rule when the rule is satisfied under the same conditions as the rule. According to the above configuration, the determination unit determines that the frame referred to in the rule and the frame referred to in the rule as the new frame when a new frame is added to a lower layer of the frame. It is determined whether the rule is satisfied under the same conditions as the rule. In the determination, the replacement unit replaces the new rule with the new rule when the new rule is satisfied under the same conditions as the rule.

In this case, when replacing the rule with the new rule, the ruler is set in the invalid state and the storage source data for associating the new rule with the rule is stored in case of reactivating the rule. The storage source data storage unit may be provided.

Further, a knowledge base editing program that causes a computer to edit a knowledge base including a hierarchical frame and a rule that refers to the frame is directly related to the frame referred to in the rule. If a new frame is added to the hierarchy between the upper frame belonging to the above rule and the new frame is the frame referred to in the rule under the same condition as the rule. It is characterized in that the new rule is replaced with the new rule when the new rule is satisfied under the same conditions as the rule.

A knowledge base editing program for causing a computer to edit a knowledge base including a frame having a hierarchical structure and a rule referring to the frame is a frame referred to in the rule and a lower layer of the frame. When a new frame is added to the rule, it is determined whether or not a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule. If the rule is satisfied under the same conditions as the rule, the rule is replaced with the new rule. In these cases, the knowledge base editing program may be recorded in the recording medium.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, preferred embodiments of the present invention will be described with reference to the drawings. [1] Configuration of Embodiment As shown in FIG. 1, the expert system 10 of the present embodiment roughly includes a knowledge base editor 11 (functioning as a knowledge base editing device), a knowledge base 12, and an inference engine 13. . These configurations are MPU, R
It can be realized by installing a knowledge base editing program in a computer system including an OM, a RAM and an external storage device. In this case, the knowledge base is generally constructed as a database on an external storage device. The knowledge base editor 11 creates and edits a knowledge database. The knowledge base 12 stores frames or rules as a database. Here, the frame represents a static thing such as a concept, that is, represents invariant information, and stores various attributes in the slot. It also shows the upper and lower relationships of each information. The rule is represented in the IF-THEN format and represents information that dynamically changes depending on the situation. The IF-THEN format includes a condition part and a conclusion part, and references frames in the condition part and the conclusion part.

Specifically, as shown in FIG. 2, a parent frame having the concept of "infectious disease" has a hierarchical structure with child frames having the concepts of "cold", "dysentery", and "cholera". It is stored in the knowledge base 12.
In this case, the rules stored in the knowledge base 12 are
The rules that should be applied when the illness is cholera or dysentery, "if (IF) illness = if it is an infectious disease (THEN) are quarantined" and if the illness is a cold, the exception rule, "if (IF ) If illness = cold (THE
N) Not quarantined. " The inference engine 13 makes an inference based on the knowledge database and outputs an inference result. More specifically, for the input value, the knowledge base 12
Search inside to find the frame corresponding to the input value. Next, a rule is searched with a rule that refers to the searched frame and a child frame having the frame as a parent frame in the condition part, and the rule in which the condition part is satisfied is a requirement.

When there are a plurality of rules that satisfy the above requirements, one of the rules is selected by the conflict resolution method, the conclusion part of the selected rule is executed, and the result is output as an inference result. In the conflict resolution method, the exception rule is applied preferentially, and in the case of the above example, "if (IF) illness = cold (THEN), it is not isolated".
Rule is applied preferentially, and even if the condition part of the rule "if (IF) disease = infectious disease (THEN) is isolated" is satisfied, the conclusion part of the rule is not executed So, there is no reasoning to say that if the illness is a cold, it will be isolated because it is an epidemic.

[2] Rule Unification First, a rule unification process for unifying rules when a user inserts a new frame will be described with reference to FIG. First, the knowledge base editor 11
With reference to the knowledge base 12, a plurality of rules satisfying the following items are searched (step S1). (1) It has a condition part that refers to a lower frame of the frame FUSER inserted by the user. (2) The same rule RX can be obtained by modifying the condition part forming the corresponding rule so as to refer to the frame FUSER inserted by the user. Next, the knowledge base editor 11 determines whether or not the rule group GR including a plurality of rules R1 to Rn satisfying the above items exists in the knowledge base 12 (step S2). In the determination of step S2, the rule group G
When R exists in the knowledge base 12, the knowledge base editor 11 adds the rule RX in which the condition of each rule is changed to refer to the frame inserted by the user (step S3). Next, the knowledge base editor 11 invalidates the use of the rules R1 to Rn in the knowledge base 12.
Then, the knowledge base editor 11 associates the invalid rules R1 to Rn with the rule RX to enable restoration when the rules R1 to Rn are made valid again, and ends the process (step S4).

[3] Automatic Update of Rule Condition Part Next, FIG. 4 shows the automatic update process of the rule condition part so as to limit the applicable range of the rule condition part when the user inserts a new frame. It will be described with reference to FIG. First,
The knowledge base editor 11 refers to the knowledge base 12,
A plurality of rules satisfying the following items are searched (step S11). (1) It has a condition part that refers to the upper frame of the frame FUSER inserted by the user. (2) Even if the condition part constituting the corresponding rule is modified to refer to the frame FUSER inserted by the user, the condition part of the rule is satisfied. Next, the knowledge base editor 11 creates a rule group GR1 composed of a plurality of rules R11 to R1n for which the above items are satisfied.
It is determined whether or not exists in the knowledge base 12 (step S12). When the rule group GR1 is present in the determination in step S12, the rule RX1 in which the condition of each rule is changed to refer to the frame inserted by the user is added (step S13). Next, the knowledge base editor 11 invalidates the use of the rules R11 to R1n (step S14). And the knowledge base editor 1
1 enables the restoration of the rules R11 to R1n when the rules R11 to R1n are re-enabled.
The processing is ended by associating with X1. On the other hand, step S
In the determination of 12, if the rule group GR1 does not exist, this processing ends.

[4] Concrete Example Next, a concrete example will be described. [4.1] Structure of Knowledge Base First, the structure of the knowledge base 12 will be described. FIG. 5 shows an explanatory diagram of the configuration of the frames that make up the knowledge base 12. In the frame of this specific example, there is an “infectious disease” as an upper frame, and a plurality of frames “cold”, “AIDS”, “dysentery”, and “cholera” are lower frames of the frame “infectious disease”. FIG. 6 shows an explanatory diagram of a rule setting example in the above frame configuration. The following three rules are listed as rules. Rule RA1: If illness = contagious disease (Condition section) Isolate (Conclusion section) Rule RA2: If illness = cold (Condition section) Not Isolate (Conclusion section) Rule RA3: If illness = AIDS ( Conditional part) Not isolated (conditional part) The data of the frame is actually stored as a database in a format as shown in FIG. 7, for example. The frame data FLD roughly includes frame name data FN, attribute data FB, and upper frame name data FU.

The frame name data FN stores the name of each frame. The attribute data FB stores data indicating whether the frame is a set or an element forming the set. For example, the attribute data F
When B is “class”, it indicates that the frame is a set, and when attribute data FB is “instance”, it means that the frame is an element of a set that constitutes an upper frame. It represents. When the frame is a lower frame, the upper frame name data FU stores one or more data representing the name of the upper frame according to the number of upper frames to which the frame belongs. More specifically, the upper frame "infectious disease"
The data has the following structure, as shown in FIG. -Frame name data FN: Infectious disease-Attribute data FB: Class-Higher frame name data FU: (None)

The data of the lower frame "cold" is
As shown in FIG. 7, it has the following configuration. -Frame name data FN: cold-attribute data FB: instance-upper frame name data FU: infectious disease Further, the data of the lower frame "Cholera" has the following structure, as shown in FIG. -Frame name data FN: Cholera-Attribute data FB: Instance-Higher-order frame name data FU: Infectious disease rule data RLD are actually stored as a database, for example, in the format as shown in FIG.

The rule data RLD is roughly classified into rule number data RN, save source data RS and condition part data R.
C (including logic part data RL) and conclusion part data RR are provided. The rule number data RN stores a unique number (≧ 1) for identifying the rule. The storage source data RS stores a number for identifying a new rule as an association with the new rule when the rule is invalidated by the addition of the new rule.
On the contrary, if the rule is valid, the storage source data R
In S, data of “0” indicating that no association is made is stored. The condition part data RC stores one or a plurality of conditions forming the condition part of the rule.
When a plurality of conditions are stored, the logical unit data RL indicating the logical relationship (AND / OR) between them is included. The conclusion part data RR stores the conclusion part of the rule executed when one or a plurality of conditions forming the condition part are satisfied.

More specifically, the data of the rule corresponding to the rule number = 1 has the following structure, as shown in FIG.・ Rule number data RN: 1 ・ Saving source data RS: 0 ・ Condition part data RC ： Disease = infectious disease ・ Conclusion part data RR ： Isolated Also, the data of the rule corresponding to the rule number = 3 is shown in FIG. As shown, it has the following configuration.・ Rule number data RN ： 3 ・ Saving source data RS: 0 ・ Condition part data RC ： Sickness = AIDS ・ Conclusion part data RR ： Not quarantined

[4.2] Operation when adding a new frame Next, the operation when the user adds a new frame will be described. In the following description, the state of the knowledge base in the initial state is assumed to be the state shown in FIG. In this state, the user sets a new frame FUSER1 = “infectious disease without legal regulation” to a state as shown in FIG. 9, which is a subordinate frame of the frame “infectious disease”, and includes the frame “cold” and the frame “AIDS”. It is assumed that it is added as an upper frame of. As a result, as shown in FIG. 10, the data of the frame "Communicable diseases without legal restrictions"
Added to knowledge base 12.・ Frame name data FN: Infectious disease without legal regulation ・ Attribute data FB: Class ・ Higher frame name data FU: Infectious disease

[0023] Furthermore, the frame "Communicable diseases without legal restrictions"
As a result of the addition of "frame cold" and frame "AI
The data of "DS" is updated as follows. Frame "cold" -Frame name data FB: Cold-attribute data FB: Instance-upper frame name data FU: Infectious disease frame "AIDS" without legal restrictions-Frame name data FN: Cholera-attribute data FB: Instance-upper Frame name data FU: Infectious diseases without legal restrictions

[4.3] Rule Unification First, with reference to FIG. 3, a rule unification process for unifying rules when a user inserts a new frame will be described. First, the knowledge base editor 11
With reference to the knowledge base 12, a plurality of rules satisfying the following items are searched (step S1). (1) It has a condition part that refers to a lower frame of the frame FUSER inserted by the user. As a rule in which this matter is satisfied, there is a rule corresponding to rule number data RN = 2 and rule number data RN = 3. (2) Next, a frame FUS in which the user inserts a condition part (condition part data RC) forming a rule corresponding to rule number data RN = 2 and rule number data RN = 3
Modify to refer to ER. That is, "If illness =
"If you have a cold" or "if you have an illness = AIDS", then see "If you have a illness = an infectious disease without legal regulation"
And fix it.

As a result, as shown in FIG. 11, these two rules are replaced by the following rule RX. RX = “Illness = not isolated if infectious disease without legal regulation” Next, the knowledge base editor determines whether or not there is a rule group GR composed of a plurality of rules R1 to Rn satisfying the above-mentioned matters. It is determined (step S2). In the determination in step S2, since the rule group GR exists, the rule RX is added as a new rule (step S
3). More specifically, the data of the rule RX to be added has the following configuration, as shown in FIG.・ Rule number data RN ： 4 ・ Saving source data RS: 0 ・ Condition part data RC ： Illness = Infectious disease without legal regulation ・ Conclusion part data RR ： Not quarantined

Next, the use of the rules corresponding to the rule number data RN = 2 and the rule number data RN = 3 is invalidated. Then, in order to enable restoration when re-enabling the rules R1 to Rn, the rule number data RN =
2 and the rule source data RS corresponding to the rule number data RN = 3 are set to the value = 4 corresponding to the rule number data of the added rule RX, and these rules are associated with the rule RX (step S4), and the processing is executed. finish.
More specifically, the rule data corresponding to the rule number data RN = 2 has the following configuration as shown in FIG.・ Rule number data RN: 2 ・ Saving source data RS: 4 ・ Condition part data RC: Ill = cold ・ Conclusion part data RR: Not quarantined Further, the rule data corresponding to the rule number data RN = 3 is shown in FIG. As shown, it has the following configuration.・ Rule number data RN: 3 ・ Saving source data RS: 4 ・ Condition part data RC ： Sickness = AIDS ・ Conclusion part data RR ： Not quarantined

Thereafter, by the user's designation, the rule RX (rule number data RN = 4) added by the system is canceled, and the rule number data RN = 2 and the rule number which are invalidated rules due to the addition of the rule RX. When restoring the rule corresponding to the data RN = 3, first, the rule RX is deleted from the knowledge base. Next, the saving source data RS = 0 of the rule corresponding to the rule number data RN = 2 and the rule number data RN = 3. As a result, the rules in the knowledge base 12 are restored to the original state shown in FIG.

[4.4] Automatic update of condition part of rule Next, when the user inserts a new frame, the condition part of the rule (condition part data RC) is limited so as to limit the application range of the condition part of the rule. The automatic update process will be described with reference to FIG. In this case, it is assumed that the frame structure before the new frame is inserted is the state shown in FIG. 9 and the frame structure after the new frame FUSER2 is inserted is the one shown in FIG. First, the knowledge base editor 11 refers to the knowledge base 12 and searches for a plurality of rules satisfying the following items (step S).
11).

(1) Frame FUSER2 inserted by the user
Of the upper frame F0 (see FIG. 13). FIG. 14 shows an explanatory diagram of the rule data RLD1 before frame insertion. As a rule in which this item is satisfied, as shown in FIG. 14, there is a rule corresponding to rule number data RN = 5 and rule number data RN = 6. (2) Even if the condition part forming the corresponding rule is modified to refer to the frame FUSER2 inserted by the user, the condition part of the rule is satisfied. That is, it is determined whether or not the condition part of the rule is satisfied even if the portion "if illness = infectious disease" is corrected to "if illness = infectious disease with behavior restriction". Next, the knowledge base editor 11
It is determined whether or not there is a rule group GR1 composed of a plurality of rules R11 to R1n for which the above items are satisfied (step S12). In the determination of step S12, since there are rules corresponding to the rule number data RN = 5 and the rule number data RN = 6 as the rule group GR1, the conditions of each rule are changed to refer to the frame inserted by the user. The added rule RX1 is added (step S13). Here, the new rule RX1 is a rule that “if an infectious disease with behavior restriction is quarantined”.

FIG. 15 is an explanatory diagram of the rule data RLD1A after the condition part of the rule is automatically updated. More specifically, the data of the rule RX1 to be added has the following configuration, as shown in FIG. -Rule number data RN: 7-Saving source data RS: 0-Condition part data RC: Illness = Infectious disease with behavior restriction-Conclusion part data RR: Being quarantined The use of rules R11 to R1n is invalidated. Then, in order to enable restoration when the rules R11 to R1n are made valid again, the invalidated rules R11 to R1n are associated with the rule RX1 and the process ends. More specifically, the rule data corresponding to the rule number data = 5 has the following configuration as shown in FIG.・ Rule number data RN: 5 ・ Saving source data RS: 7 ・ Condition part data RC ： Disease = dysentery ・ Conclusion part data RR ： Isolated

The data of the rule corresponding to the rule number = 6 has the following structure, as shown in FIG. -Rule number data RN: 6-Saving source data RS: 7-Condition section data RC: Illness = Cholera-Conclusion section data RR: Being quarantined Then the rule RX1 (rule number data = 7) added by the system by user's designation ) Is canceled and the rules corresponding to the rule number data = 5 and the rule number data = 6 that are invalidated by the addition of the rule RX1 are restored, first, the rule RX1 (rule number data = 7) is deleted from the knowledge base 12. Next, the saving source data of the rule corresponding to the rule number data = 5 and the rule number data = 5 is set to 0. As a result, the rules in the knowledge base 12 are restored to the original state shown in FIG.

[5] Effects of the Embodiment As described above, according to this embodiment, it is possible to broaden the scope of application of one rule and obtain a more general rule. As a result, it is possible to more flexibly deal with the input value. Further, when constructed as an expert system, it is possible to expand the applicable fields. Furthermore, the number of rules can be reduced as a whole, and rule management can be facilitated. Furthermore, rules can be modified by adding frames that are easier to add than rules,
The knowledge base can be easily expanded. In addition, the rules are automatically made common as the user edits the frame, and it is possible to avoid mistakes when editing the rules.

[6] Modification of Embodiment [6.1] First Modification In the above description, the automatic correction of the rule has been described as being performed automatically. However, in an actual system, the automatic correction is not always necessary. Is not always preferable. Therefore, in such a case, it is possible to set so that automatic correction is not performed by the user's setting. However, even in such a case, it is preferable to present to the user the fact that automatic correction is possible and the rule after automatic correction. This is because the efficiency of the system can be further improved.

[6.2] Second Modification In the above description, only the expert system has been described in the field of application of the present invention, but a failure diagnosis system for diagnosing various failures, a consulting system for performing various consulting operations, The present invention can be applied to a product selection system that presents product information that meets the customer's desired conditions and prompts product selection, an advisor system that presents various kinds of advice, or a robot action planning system that plans robot actions.

[0035]

According to the present invention, more general-purpose rules can be obtained, and the number of rules can be reduced as a whole, and rule management can be facilitated. Further, it is possible to deal with input values more flexibly, and it is possible to expand the applicable fields when constructed as an expert system or the like. Furthermore, the rule can be modified by simply adding a frame that is easier to add than the rule, and the knowledge base can be easily expanded.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of an expert system according to an embodiment.

FIG. 2 is an explanatory diagram of a frame configuration.

FIG. 3 is a process flowchart of unifying rules.

FIG. 4 is a flowchart of update processing of a condition part of a rule.

FIG. 5 is an explanatory diagram of a frame configuration when adding a frame.

FIG. 6 is an explanatory diagram of rule addition accompanying frame addition.

FIG. 7 is an explanatory diagram of a frame database configuration.

FIG. 8 is an explanatory diagram of a rule database configuration.

FIG. 9 is an explanatory diagram of a frame configuration in a specific example of frame addition.

FIG. 10 is an explanatory diagram of a database structure of a frame when a frame is added.

FIG. 11 is an explanatory diagram of a specific example of unifying rules.

FIG. 12 is an explanatory diagram of a database configuration at the time of updating a condition part of a rule.

FIG. 13 is an explanatory diagram of a frame configuration when a frame is added at the time of automatically updating a condition part of a rule.

FIG. 14 is an explanatory diagram of a configuration of a database before automatic updating of a condition part of a rule.

FIG. 15 is an explanatory diagram of a configuration of a database after automatic updating of a condition part of a rule.

[Explanation of symbols]

10 ... Expert system 11 ... Knowledge Base Editor 12 ... Knowledge base 13 ... Inference engine

Claims (9)

[Claims] 1. A method of editing a knowledge base including a hierarchical frame and a rule referencing the frame, wherein the frame referred to in the rule and the frame directly belong to each other. When a new frame is added to a layer between the upper frame and the upper frame, whether a new rule that the frame referred to in the rule is the new frame is satisfied under the same condition as the rule is determined. A knowledge base editing process comprising: a determination process of determining, and a replacement process of replacing the rule with the new rule when the new rule is satisfied under the same conditions as the rule in the determination. Method. 2. A knowledge base editing method for editing a knowledge base including a frame having a hierarchical structure and a rule referencing the frame, wherein a frame referred to in the rule and a lower hierarchy of the frame are newly added. When a frame is added, a determination process of determining whether a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule, and in the determination, the A knowledge base editing method comprising: a replacement step of replacing the rule with the new rule when the new rule is satisfied under the same conditions as the rule. 3. The knowledge base editing method according to claim 1 or 2, wherein when the rule is replaced with the new rule, the rule is set to an invalid state and is re-enabled in preparation for the new rule. A method for editing a knowledge base, characterized by associating the rule with the rule. 4. A knowledge base editing apparatus for editing a knowledge base including a hierarchical structure frame and a rule referring to the frame, wherein the frame referred to in the rule and the frame directly belong to each other. When a new frame is added to a layer between the upper frame and the upper frame, it is determined whether or not a new rule in which the frame referred to in the rule is the new frame is satisfied under the same condition as the rule. A knowledge base editing device, comprising: a discriminating unit for performing the discrimination, and a discriminating unit for replacing the rule with the new rule when the new rule is satisfied under the same condition as the rule in the discrimination. . 5. A knowledge base editing apparatus for editing a knowledge base including a frame having a hierarchical structure and a rule referencing the frame, wherein a frame referred to in the rule and a new frame in a lower layer of the frame. When a rule is added, a determination unit that determines whether or not a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule; and in the determination, the new rule A knowledge base editing apparatus comprising: a replacement unit that replaces the rule with the new rule when the rule is satisfied under the same condition as the rule. 6. The knowledge base editing apparatus according to claim 4 or 5, wherein when replacing the rule with the new rule, the rule is set in an invalid state and is re-enabled in preparation for the new rule. A knowledge base editing apparatus, comprising: a save source data storage unit that stores save source data for associating the rule with the rule. 7. A knowledge base editing program for causing a computer to edit a knowledge base including a hierarchical frame and a rule referring to the frame, wherein the frame referred to in the rule and the frame When a new frame is added to a layer between itself and a higher-level frame, a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule. A knowledge base editing program, characterized in that the rule is replaced by the new rule when the new rule is satisfied under the same conditions as the rule in the judgment. 8. A knowledge base editing program for causing a computer to edit a knowledge base including a hierarchical frame and a rule referring to the frame, wherein the frame referred to in the rule and the frame When a new frame is added to the lower layer, it is determined whether or not a new rule in which the frame referred to in the rule is the new frame is satisfied under the same conditions as the rule, and in the determination, A knowledge base editing program, wherein when the new rule is satisfied under the same conditions as the rule, the rule is replaced with the new rule. 9. A recording medium on which the knowledge base editing program according to claim 7 or 8 is recorded.