Unlabeled Image Classification via Aggregated Similarity Predictions

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Solution Overview

Problem

Existing methods for outlier detection in machine learning are inefficient and costly, especially when dealing with large datasets, as they require manual labeling of inliers and outliers, which is time-consuming and impractical.

Innovation Solution

A data classification method that involves obtaining unlabeled images, executing multiple prediction rounds to generate intermediate inlier-outlier predictions, aggregating these predictions to select aggregate-predicted inlier images, and finally classifying each image into an inlier or outlier dataset based on similarity scores.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual labeling of inliers and outliers is performed, then classification accuracy can be ensured, but time consumption and cost increase significantly

Engineering Contradiction:
Improveclassification accuracyVSAvoidtime consumption
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs self-labeling by automatically computing similarity matrices and generating inlier-outlier predictions without requiring manual annotation. The algorithm selects assumed inlier images, computes similarity scores, and automatically classifies unlabeled images, enabling the system to serve itself rather than relying on external manual labeling resources.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent introduces an intermediary computational process involving similarity matrix computation and prediction aggregation. Instead of direct manual labeling, the system uses intermediate steps (similarity calculation, multiple prediction rounds, aggregation) to bridge the gap between unlabeled data and final classification, reducing direct human intervention while maintaining accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If multiple prediction rounds with aggregation are executed, then classification accuracy improves, but computational complexity increases

Engineering Contradiction:
Improveprediction accuracyVSAvoidcomputational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The classification process is segmented into multiple independent prediction rounds, each handling a subset of assumed inlier images. By dividing the overall task into Q separate rounds with individual similarity matrix computations and predictions, the system manages computational complexity through segmentation while improving accuracy through aggregation of multiple independent predictions.

Inventive Principle:
Principle #1Segmentation

3Reliability

If similarity matrix computation is performed multiple times, then prediction reliability improves, but processing time increases

Engineering Contradiction:
Improveprediction reliabilityVSAvoidprocessing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system employs periodic computation of similarity matrices across Q prediction rounds rather than continuous or single computation. Each round periodically recomputes similarity scores with different assumed inlier selections, and the periodic aggregation of these computations enhances prediction reliability while managing processing throughput.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS12292919B2Data classification method for classifying inlier and outlier data
Publication Date: 2025.05.06 HTC CORP
  • US12292919B2 patent drawing
  • US12292919B2 patent drawing
  • US12292919B2 patent drawing

AI summary

A data classification method, for classifying unlabeled images into an inlier data set or an outlier data set, include following steps. The unlabeled images are obtained. An assigned inlier image is selected among the unlabeled images. A similarity matrix is computed and the similarity matrix includes first similarity scores of the unlabeled images relative to the assigned inlier image. Each of the unlabeled images is classified into an inlier data set or an outlier data set according to the similarity matrix, so as to generate inlier-outlier predictions of the unlabeled images.