Ensemble Expert Diversification via Bid-Based Allocation

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Solution Overview

Problem

Traditional ensemble diversification methods are ineffective in achieving accurate decision-making due to lack of control over learning results and improper weighting of individual expert decisions, leading to suboptimal performance in capturing complex concepts.

Innovation Solution

The proposed solution involves an ensemble expert diversification framework that uses a bidding mechanism to dynamically allocate training data and bidding currency, encouraging experts to specialize in sub-domains where they excel and discouraging them from areas of low confidence, creating a positive feedback loop for improvement and enhancing decision accuracy on unseen data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional ensemble diversification methods are used to train multiple experts, then diversity of learners is achieved, but accuracy in capturing complex concepts deteriorates due to lack of control over learning results

Engineering Contradiction:
Improvediversity of learnersVSAvoidaccuracy in capturing complex concepts
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent changes the parameter of training data allocation from static/equal distribution to dynamic/bid-based allocation. Experts bid for training samples based on their confidence levels, and the system allocates samples accordingly. This parameter change enables both diversity (different experts get different samples) and accuracy (samples are allocated to experts most likely to learn them effectively).

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces feedback mechanisms where experts provide confidence scores for their predictions, and the system uses this feedback to control which experts receive which training samples. The feedback loop allows the system to adaptively control the learning process, ensuring that experts focus on areas where they can improve accuracy while maintaining diversity in their expertise areas.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If all expert decisions are considered in integration, then comprehensive decision-making is achieved, but performance deteriorates due to improper weighting of individual expert decisions

Engineering Contradiction:
Improvecomprehensive decision-makingVSAvoidoverall ensemble performance
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent changes the weighting parameter from uniform/equal weights to dynamic weights based on expert confidence and performance. The system adjusts the weight each expert contributes to the final decision based on their demonstrated accuracy and confidence levels, thereby improving overall ensemble performance while maintaining comprehensive decision-making through multiple experts.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20220036249A1System and Method for Ensemble Expert Diversification and Control Thereof
Publication Date: 2022.02.03 YAHOO ASSETS LLC
  • US20220036249A1 patent drawing
  • US20220036249A1 patent drawing
  • US20220036249A1 patent drawing

AI summary

The present teaching relates to method, system, medium, and implementations for machine learning. A training sample is sent to an expert for training a model representative of the expert. A prediction is received, which is generated by the expert in accordance with the training sample and based on one or more parameters associated with the model. A metric with respect to the prediction characterizing the prediction received from the expert is analyzed. When the metric satisfies a first criterion, a ground truth label associated with the training sample is sent to the expert to facilitate the training.