Task-Aware Trust Evaluation for Distributed Task Assignment

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Solution Overview

Problem

Existing AI systems lack effective trust evaluation mechanisms for task assignment in distributed computing and communication systems, leading to inefficiencies in task execution and collaboration among devices.

Innovation Solution

Implementing a trust management function (TMF) that performs task-aware trust evaluation, assigning tasks based on estimated trust indices (ETIs) and aggregating them for complex tasks across multiple devices, allowing for dynamic task reassignment and improved collaboration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If task assignment is performed without trust evaluation in distributed systems, then task execution speed is improved, but system reliability deteriorates due to potential malicious or faulty device behavior

Engineering Contradiction:

Improvetask execution speedVSAvoidsystem reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent performs trust evaluation before task assignment (pre-task-assignment trust evaluation). The trust management function assesses the trustworthiness of task participants in advance, establishing trust indices that guide subsequent task allocation. This preliminary assessment ensures reliable devices are selected without delaying execution.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The trust management function acts as an intermediary between task initiators and task participants. It mediates the task assignment process by evaluating trust indices and providing recommendations, enabling efficient task allocation while maintaining system reliability through trusted intermediation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If comprehensive trust evaluation is performed for all devices, then system reliability is improved, but computational overhead and complexity increase

Engineering Contradiction:

Improvetrust evaluation accuracyVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements task-aware trust evaluation where different trust criteria and parameters are applied based on the specific task requirements. Different task participants are evaluated using tailored trust metrics relevant to their roles and capabilities, rather than a uniform evaluation framework, reducing overall system complexity.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The trust management function dynamically adjusts trust evaluation parameters based on task characteristics, device types, and contextual factors. This adaptability allows comprehensive evaluation where needed while simplifying assessment in less critical scenarios, balancing reliability with complexity.

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If static trust indices are used for task assignment, then assignment simplicity is improved, but adaptability to changing device behavior deteriorates

Engineering Contradiction:

Improvetask assignment simplicityVSAvoidadaptability to device behavior changes

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic trust indices that are updated continuously based on device performance, historical behavior, and feedback from task execution. Trust evaluations are not static but evolve over time, allowing the system to adapt to changing device reliability while maintaining simple assignment mechanisms through automated updates.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The trust management system incorporates feedback loops where task execution results, device performance metrics, and behavioral data are fed back into the trust evaluation process. This feedback mechanism automatically updates trust indices, enabling adaptability without complicating the task assignment operation.

Inventive Principle:

Principle #23Feedback

4Measurement precision

If multiple trust evaluation criteria are applied, then measurement precision is improved, but evaluation time increases

Engineering Contradiction:

Improvetrust index accuracyVSAvoidevaluation time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent segments the trust evaluation process into multiple independent criteria (e.g., security trust, performance trust, behavioral trust). Each criterion is evaluated separately and then aggregated into an overall trust index. This segmentation allows precise multi-faceted evaluation while enabling parallel processing to minimize total evaluation time.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12538125B2Pre-task assignment trust evaluation in distributed computing and communication systems

Publication Date: 2026.01.27 INTERDIGITAL PATENT HOLDINGS INC

AI summary

A wireless transmit and receive unit (WTRU) may be configured to operate as task initiator (TI). The WTRU may send a request for a trust evaluation to a task management function (TMF), including a first candidate task participant (TP) and a first task and a second candidate TP and a second task. The WTRU may include trust indicators for the first candidate TP to perform the first task and for the second candidate TP to perform the second task. The TMF may perform the trust evaluation and determine a first estimated trust index (ETI) and a second ETI. Upon receiving the ETIs, the WTRU may determine an aggregated ETI. The WTRU may determine whether to assign the first task to the first candidate TP and the second task to the second candidate TP based on the aggregated ETI.