Tutor Model Building System for Automated Behavior Graph Generation

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Solution Overview

Problem

Existing intelligent tutoring systems (ITS) require significant manual effort and expertise for authoring, particularly in creating behavior graphs, which limits their scalability and efficiency in developing domain-independent learning platforms.

Innovation Solution

A tutor model building system that captures user actions through a user interface, generates behavior demonstrations, and combines them into behavior graphs, reducing the authoring effort by leveraging multiple user inputs and automated graph generation techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual authoring methods are used to create behavior graphs for intelligent tutoring systems, then the system can be built with existing tools and processes, but the authoring effort and time required increase significantly

Engineering Contradiction:
Improvequality of intelligent tutoring systemVSAvoidauthoring time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by automatically generating behavior graphs from student interaction data before the authoring process begins. The behavior graph generation algorithm processes raw interaction logs, identifies behavioral patterns, and constructs the behavior graph structure in advance, reducing the manual authoring workload and time required.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system enables self-service by allowing behavior graphs to be automatically generated from student interaction data without requiring extensive manual intervention. The algorithm autonomously processes the data, identifies patterns, and creates the behavior graph, making the authoring process more efficient and less time-consuming.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If expert authors manually create behavior graphs, then the system achieves high accuracy in modeling student behavior, but the complexity and expertise requirements increase

Engineering Contradiction:
Improvebehavior modeling accuracyVSAvoidauthoring system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system replaces the mechanical process of manual behavior graph creation by experts with an automated algorithmic approach. The generation algorithm processes student interaction data, identifies behavioral patterns, and constructs the behavior graph automatically, reducing the need for expert manual intervention while maintaining modeling accuracy.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system creates copies of behavioral patterns from student interaction data to generate the behavior graph. By analyzing multiple student interactions and identifying recurring patterns, the algorithm replicates effective behavioral models without requiring experts to manually create each graph from scratch.

Inventive Principle:
Principle #26Copying

3Manufacturing precision

If multiple user inputs are collected and processed, then the behavior graph quality improves, but the data processing time and computational resources increase

Engineering Contradiction:
Improvebehavior graph qualityVSAvoidgraph generation efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system applies partial action by processing a representative subset of student interaction data to generate the behavior graph. Rather than processing every single interaction, the algorithm identifies key patterns from sufficient data samples, achieving good graph quality without the full computational cost of processing all available data.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The data processing is segmented into manageable stages: data collection, pattern identification, and graph construction. This segmentation allows the system to process multiple user inputs efficiently by breaking down the complex task into smaller, more manageable steps that can be executed with reduced computational overhead at each stage.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10354541B2Tutor model building system
Publication Date: 2019.07.16 RTX BBN TECH INC
  • US10354541B2 patent drawing
  • US10354541B2 patent drawing
  • US10354541B2 patent drawing

AI summary

A tutor model building system includes a user interface device having a monitor to present to a user a predetermined learning interface of a problem requiring a solution and an input device for the user to enter data showing actions taken to arrive at a solution into the system, a computer to capture the actions entered by the developer user and to generate a behavior demonstration associated with the actions entered and to combine a plurality of behavior demonstrations created from a plurality of user entered data to a behavior graph, and an output device to provide the behavior graph to an authoring tool.