Expert system and method employing hierarchical knowledge base, and interactive multimedia/hypermedia applications

• US 5,870,768 A
• Filed: 01/10/1997
• Issued: 02/09/1999
• Est. Priority Date: 04/29/1994
• Status: Expired due to Term

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Hekmatpour, Amir
• Primary Examiner(s): Hafiz, Taric R.
• Assistant Examiner(s): Rhodes, Jason W.
• Application Number:
  US08/781,703
• Time in Patent Office: 760 Days
• Field of Search: 395/50-51, 395/62, 395/75, 395/10, 395/155, 345/338, 345/339, 345/335, 345/347, 345/348, 706/45, 706/46, 706/53, 706/59, 707/501
• US Class Current: 715/207
• CPC Class Codes: G06F 3/0481 based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
• CPC Class Codes: G06F 40/103 Formatting, i.e. changing of presentation of documents automatic justification G06F40/189; automatic line break hyphenation G06F40/191
• CPC Class Codes: G06N 5/02 Knowledge representation; Symbolic representation
• CPC Class Codes: G06N 5/022 Knowledge engineering; Knowledge acquisition
• CPC Class Codes: G06N 5/04 Inference or reasoning models
• CPC Class Codes: G09B 5/065 Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
• CPC Class Codes: G09B 7/04 characterised by modifying the teaching programme in response to a wrong answer, e.g. repeating the question, supplying a further explanation

Abstract

An expert system and processing method employing a three level hierarchical knowledge base that has a plurality of nodes coupled together. An uppermost level comprises a behavioral knowledge level, a middle level comprises a structural knowledge level and a lowermost level is an action level. Inference processing proceeds from the behavioral knowledge level through the structural knowledge level to a leaf node of the action level. One or more non-inferentially assessable utilities may be associated with the inference kernel of the expert system for accessing during inferential processing within the hierarchically structured knowledge base. A knowledge editor implements guidelines that structure received information in the desired hierarchical three level configuration. Further, interactive multimedia/hypermedia systems and methods are presented, which might be expert system based. Training and certification applications of the multimedia/hypermedia system/method are given.

Claims

1. A computer system comprising:

a memory for storing multimedia presentable information;

a display for displaying information to a user of the computer system; and

processing means coupled to the memory and to the display, said processing means including hypergraphic processing means associated with a graphical image of an object having a predefined hypergraphic image portion thereof displayable on said display, said hypergraphic processing means including means for providing the user of the computer system with an options menu upon user selection of the predefined hypergraphic image when displayed on the display, said options menu having at least two user selectable options, each option of said at least two user selectable options being linked to a separate portion of said multimedia presentable information stored in said memory, each separate portion of said multimedia presentable information presenting information to the user of the computer system in a different multimedia format upon user selection of the linked user selectable option.

2. The computer system of claim 1, wherein said different multimedia formats include a text format, an audio format, a static image format, and a video/animation format.

3. The computer system of claim 2, wherein the different multimedia formats are presentable via a logical page formatted from at least one fixed template.

4. The computer system of claim 1, wherein said processing means includes a hierarchically-structured knowledge base containing inferentially processable information, and wherein said multimedia displayable information comprises information for active training of an employee.

5. The computer system of claim 4, wherein said hierarchically-structured knowledge base comprises a hierarchical decomposition comprising a plurality of nodes coupled together in multiple levels, said multiple levels being arranged according to attributes associated with said plurality of nodes.

6. The computer system of claim 5, wherein said multiple levels comprise three distinct levels, said three distinct levels consisting of an uppermost level comprising a behavioral knowledge level, a middle level comprising a structural knowledge level and a lowermost level comprising an action level, said three distinct levels being interconnected such that said means for inferential processing of information inference processes through said hierarchically-structured knowledge base from said behavioral knowledge level through said structural knowledge level to said action level.

7. An article of manufacture comprising a computer usable medium having computer program code means embodied therein, comprising:

first program code means for causing a display of a graphical image of an object having a predefined hypergraphic image associated with a portion thereof;

second program code means, coupled to the first program code means, for causing an options window to be displayed when the predefined hypergraphic image is user selected, said options window having a plurality of user selectable options, each user selectable option of said plurality of user selectable options being linked to an information package presentable in a different, predefined multimedia format; and

third program code means, coupled to said second program code means, for causing a presentation of an information package in its predefined multimedia format according to a user'"'"'s selection of a user selectable option from the options window.

8. The article of manufacture of claim 7, wherein said information packages linked to said user selectable options of said second program code means are presentable in one of a text format, an audio format a static image format, and a video/animation format.

9. The article of manufacture of claim 7, wherein said third program code means causes presentation of the information package in a logical page formatted from at least one predefined template.

10. The article of manufacture of claim 7, wherein said information packages presentable in different, predefined multimedia formats comprise multimedia presentable information for active training of an employee.