Self-Supervised Feature Separation for Reduced Calculation Cost

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Solution Overview

Problem

Existing contrastive learning methods in machine learning require large computational resources due to the need to input pairs of positive and negative examples to the encoder, leading to high calculation costs.

Innovation Solution

The proposed information processing apparatus uses a machine learning model where features are made farther apart by updating the model's parameters based on a loss function that calculates the similarity between features, eliminating the need for positive examples and reducing computational costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If contrastive learning is used to reduce human cost for teaching data generation, then self-supervised learning capability is improved, but calculation amount increases due to needing to input pairs of positive and negative examples to the encoder

Engineering Contradiction:
Improveself-supervised learning capabilityVSAvoidcalculation amount
Core Design Contradiction:
Extent of automationVSPower

Solution Approach 1:

The patent extracts and removes the negative example processing component from the contrastive learning framework. By eliminating the need to input negative examples to the encoder, the calculation amount is reduced while maintaining the self-supervised learning capability through positive example pairing only.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the contrastive learning process into distinct components: positive example processing and negative example processing. By separating these functions and removing the negative example segment, the system achieves reduced computational load while preserving the essential self-supervised learning functionality.

Inventive Principle:
Principle #1Segmentation

2Reliability

If pairs of positive and negative examples are input to the encoder for contrastive learning, then training effectiveness is improved, but device complexity increases

Engineering Contradiction:
Improvetraining effectivenessVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the negative example processing requirement from the training system. By removing this component, the system complexity is reduced while maintaining training effectiveness through alternative mechanisms that rely only on positive example pairs.

Inventive Principle:
Principle #2Taking out (Extraction)

3Power

If the decoder's model size is made smaller than the encoder's, then calculation cost is reduced, but manufacturing precision requirements increase

Engineering Contradiction:
Improvecalculation costVSAvoidmodel size precision
Core Design Contradiction:
PowerVSManufacturing precision

Solution Approach 1:

The patent applies asymmetry by deliberately designing the decoder with a smaller model size than the encoder. This asymmetric configuration reduces calculation cost while the system maintains performance through the encoder's larger capacity compensating for the decoder's reduced complexity.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentUS20250037038A1Information processing apparatus, method and non-transitory computer readable medium
Publication Date: 2025.01.30 KK TOSHIBA
  • US20250037038A1 patent drawing
  • US20250037038A1 patent drawing
  • US20250037038A1 patent drawing

AI summary

According to one embodiment, the information processing apparatus includes a processor. The processor extracts a plurality of features from a plurality of training data by using a machine learning model. The processor generates a prediction result relating to a task, from the training data and teaching data corresponding to the training data. The processor calculates a similarity between features with respect to the plurality of features. The processor updates a parameter of the machine learning model, based on the prediction result and the similarity, in such a manner that the features become farther from each other.