Surrogate Models for Spatiotemporal Data Reconstruction

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Solution Overview

Problem

Spatiotemporal data sets are large and expensive to store and distribute, making it challenging for end users to process them efficiently, especially over networks with low bandwidth.

Innovation Solution

A computer-implemented method generates surrogate models using machine learning algorithms to interpolate and extrapolate spatiotemporal data, allowing users to reconstruct datasets locally without transferring the full data set, by leveraging domain limits and support datasets to create interpolation, representation, and generalization models.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If spatiotemporal datasets are stored and distributed to end users, then data access and processing capability are improved, but storage costs and distribution costs increase significantly

Engineering Contradiction:
Improvedata access capabilityVSAvoiddata distribution volume
Core Design Contradiction:
Ease of operationVSQuantity of substance

Solution Approach 1:

The patent creates surrogate models as simplified copies of the original spatiotemporal datasets. These surrogate models capture the essential patterns and relationships of the data without requiring distribution of the full dataset. The surrogate models can be distributed to end users, who can then locally reconstruct or approximate the original data, significantly reducing the volume of data that needs to be stored and transmitted while maintaining data access capability.

Inventive Principle:
Principle #26Copying

2Measurement precision

If full spatiotemporal datasets are transmitted over networks, then data fidelity is maintained, but bandwidth requirements and transmission time increase

Engineering Contradiction:
Improvedata fidelityVSAvoiddata transmission time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts the essential patterns, relationships, and key information from the full spatiotemporal datasets to create compact surrogate models. These surrogate models contain only the critical information needed to reconstruct or approximate the original data, eliminating redundant or less important data elements. This extraction process maintains sufficient data fidelity for most applications while dramatically reducing the amount of data that needs to be transmitted over networks.

Inventive Principle:
Principle #2Taking out (Extraction)

3Manufacturing precision

If high-resolution spatiotemporal data is provided to all users, then analysis accuracy is improved, but storage and distribution costs increase

Engineering Contradiction:
Improveanalysis accuracyVSAvoiddistribution cost
Core Design Contradiction:
Manufacturing precisionVSLoss of energy

Solution Approach 1:

The patent enables end users to reconstruct or approximate high-resolution spatiotemporal data locally on their own devices using the distributed surrogate models. Instead of providing all users with identical high-resolution datasets (which would be expensive to distribute), each user can generate the data they need locally based on their specific analysis requirements. This approach maintains analysis accuracy where needed while significantly reducing distribution costs.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250209369A1Knowledge-based machine learning surrogate models
Publication Date: 2025.06.26 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • US20250209369A1 patent drawing
  • US20250209369A1 patent drawing
  • US20250209369A1 patent drawing

AI summary

Computer implemented methods, systems, and computer program products include program code executing on a processor(s) that identifies, in the target dataset, domain limits and resolution, wherein the domain limits comprise as upper domain limit and a lower domain limit. The processors select one or more support datasets for the target dataset and utilize the support datasets to devise an interpolation model of the target dataset for data points missing between the domain limits in the resolution. The processors generate a representation model of the target dataset between the domain limits and utilize the support dataset to generate a generalization model of the target dataset by utilizing the support datasets to extrapolate values beyond the domain limits.