Adaptive Question Scheduling for Similar Wrong-Answer Review

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Solution Overview

Problem

Existing learning support systems fail to effectively address the need for learners to revisit and understand questions they have incorrectly answered, often presenting similar questions separately, which can hinder efficient learning.

Innovation Solution

A learning support system that adjusts question intervals to advance the submission date of similar questions if answered incorrectly, aligns submission dates of similar questions, and adjusts intervals based on correct answer rates and frequencies to enhance learning efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If similar questions are presented separately to learners, then each question can be answered independently, but the learning efficiency decreases and comprehension of incorrectly answered questions is not enhanced

Engineering Contradiction:
Improvelearning efficiencyVSAvoidcomprehension of incorrectly answered questions
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent combines multiple similar questions into a single submission unit. When a learner incorrectly answers a question, the system identifies similar questions and bundles them together for simultaneous submission, allowing learners to comprehend related concepts together rather than separately, thereby enhancing learning efficiency and understanding.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system performs preliminary identification and grouping of similar questions before submission. By pre-processing questions to identify similarities and bundle them together, the system ensures that learners receive grouped similar questions together, maximizing the learning effect before the learner even attempts the questions.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If question submission intervals are fixed, then the system is simple to manage, but it cannot adapt to learners' actual understanding levels and incorrectly answered questions

Engineering Contradiction:
Improveadaptation to learner's understanding levelVSAvoidquestion submission schedule management
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic question submission intervals that automatically adjust based on learner performance. When learners incorrectly answer questions, the system shortens the submission interval for similar questions to reinforce learning. This dynamic adjustment adapts to individual learner needs without requiring complex manual management, as the system automatically monitors performance and modifies intervals accordingly.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses learner answer performance as feedback to adjust future question submission intervals. By monitoring whether learners answer questions correctly or incorrectly, the system dynamically modifies the timing and grouping of similar questions, creating a closed-loop adaptive learning system that responds to learner understanding levels.

Inventive Principle:
Principle #23Feedback

3Quantity of substance

If all questions are submitted at once, then learners can review all material comprehensively, but it overwhelms learners and reduces retention

Engineering Contradiction:
Improvetotal questions reviewedVSAvoidlearner cognitive load and retention
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The patent segments the total set of questions into smaller groups based on similarity and learner performance. Instead of presenting all questions at once, the system divides them into manageable batches, submitting only relevant similar questions together when learners struggle with specific concepts, thereby reducing cognitive load while ensuring comprehensive review over time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system employs periodic submission of question groups rather than one-time mass submission. By repeatedly submitting grouped similar questions at optimized intervals based on learner performance, the system distributes the total question load over time, preventing overwhelm while ensuring thorough review and improved retention through spaced repetition.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20260080797A1Learning support system
Publication Date: 2026.03.19 UMELABO CO LTD
  • US20260080797A1 patent drawing
  • US20260080797A1 patent drawing
  • US20260080797A1 patent drawing

AI summary

A learning support system includes: a question storage unit in which a plurality of questions for a learner to acquire knowledge and answers respectively corresponding to the plurality of questions are registered; a question interval determination unit configured to determine, in determining a date for submitting each of the plurality of questions, a question interval such that an effect of learning by the learner is enhanced; a similar question advanced submission adjustment unit configured to adjust the question interval such that a submission date of questions similar to a question incorrectly answered by the learner is advanced ahead of schedule to align with the submission date of the incorrectly answered question; and a question submission unit configured to submit each of the questions to the learner, based on the question interval determined or adjusted by the question interval determination unit and the similar question advanced submission adjustment unit.