Adaptive-Shot Hybrid Quantum Anomaly Detection for Tactile Internet Security: Reliability-Aware Measurement Allocation Under Resource Constraints

2026-10-05

AI Summary

This study addresses the challenge of balancing limited quantum measurement resources with reliable anomaly detection in Tactile Internet security analysis. We propose an adaptive shots allocation strategy based on variational quantum circuits. By treating quantum measurements as schedulable resources within a hybrid quantum-classical architecture equipped with a verification-calibration mechanism, the method dynamically adjusts the number of measurement shots according to decision confidence, thereby precisely directing computational resources toward boundary-sensitive samples. Experimental results demonstrate that the proposed strategy reduces shot consumption by over 73% on average compared to fixed-budget baselines while maintaining a decision disagreement rate below 0.8%. Consequently, this approach significantly lowers computational overhead without compromising detection accuracy, effectively overcoming the reliability bottleneck imposed by resource constraints.

Abstract

Tactile Internet (TI) security analytics must balance reliable thresholded decisions with constrained computational and measurement resources. We study this tension for finite-shot hybrid quantum anomaly inference and introduce the Adaptive-Shot Variational Quantum Circuit (AS-VQC) policy. This validation-calibrated policy begins each record at 128 shots and cumulatively escalates through 256, 512, and 1024 shots only when the finite-shot anomaly score remains close to a validation-selected security threshold. The quantum scorer is evaluated as an off-path security analytics component rather than part of the haptic critical path. Using a 4,875-record CESNET-TimeSeries24-derived aggregate-flow benchmark, leakage-safe random, entity-group-disjoint, and temporal holdouts, and five trained quantum neural network (QNN) checkpoints per holdout, the primary AS-VQC-95 (beta = 0.95) policy averages 129.2, 276.9, and 131.2 shots per record, saving 87.4%, 73.0%, and 87.2% of the uniform 1024-shot baseline (Fixed-1024), respectively. The decision disagreement with analytic (exact-expectation) inference is 0.771%, 0.409%, and 0.635%, lower than both the uniform 128-shot baseline (Fixed-128) and a matched-budget shuffled-allocation control. Fixed-1024 remains more decision-stable, establishing a measurable reliability-resource trade-off rather than cost-free equivalence. A more conservative AS-VQC-99 (beta = 0.99) further reduces disagreement while using fewer than 512 average shots across all holdouts. These results show that finite quantum measurements can be treated as an inference resource and concentrated on boundary-sensitive TI-security decisions while exposing checkpoint-dependent escalation under unseen-entity conditions.

Problem

• Tactile Internet Security
• Quantum Anomaly Detection
• Resource Constraints
• Reliability-Resource Trade-off
• Finite-Shot Measurement

Innovation

• Adaptive-Shot VQC
• Hybrid Quantum Anomaly Detection
• Tactile Internet Security
• Resource-Reliability Trade-off
• Variational Quantum Circuit