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arxiv: 2605.23938 · v1 · pith:MUC4Y3DMnew · submitted 2026-04-28 · 💻 cs.AI · cs.CY· cs.LG

Authority Inversion in LLM-Mediated Ubiquitous Systems: When Models Trust Users Over Sensors

Pith reviewed 2026-07-01 09:17 UTC · model grok-4.3

classification 💻 cs.AI cs.CYcs.LG
keywords authority inversionLLM sensor fusioncontext integrationgeometric frameworkubiquitous systemsmodel calibrationsensor trustmultimodal decision making
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The pith

Large language models prioritize natural-language user claims over conflicting numerical sensor data.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper establishes that LLMs allocate authority between sensor measurements and user claims in a format-dependent way that is buried inside their learned representations. Numerical sensor values fail to enter the directions the model uses for its answer, so text claims control the outcome. The authors call this Authority Inversion and show it holds across model sizes on numerical tasks. To address it they introduce a geometric framework for measuring context integration, two audit metrics, and an inference-time calibration layer that improves sensor influence without retraining.

Core claim

When sensor measurements and user claims conflict, LLMs exhibit Authority Inversion because numerical data fails to integrate into answer-relevant model directions while natural-language claims dominate the final decision. This allocation is diagnosed with a geometric framework of context integration that supplies the Context Integration Ratio and Authority Alignment Index, and it is mitigated by Geometric Authority Calibration, a layer-level intervention at inference time. Experiments on four models and four datasets with 576 conflict cases confirm near-zero sensor trust that is independent of model capacity.

What carries the argument

The geometric framework of context integration, which tracks how heterogeneous inputs combine inside the model's representation space to determine which input type controls the output.

If this is right

  • Models display near-zero sensor trust on numerical tasks with Authority Alignment Index around -0.8 regardless of parameter count from 4B to 35B.
  • Geometric Authority Calibration raises human activity recognition accuracy from 0-1.6 percent to 21.9-27.5 percent.
  • Theory-guided causal injection based on the framework reverses 80.2 percent of incorrect decisions while random controls reverse fewer than 0.4 percent.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • The same format dependence may appear when LLMs combine other input modalities such as images or audio with text.
  • Deployments that treat LLM outputs as authoritative in physical environments would benefit from routine authority audits rather than assuming sensor priority.
  • Input formatting choices could serve as a lightweight control knob for authority balance without changing model weights.

Load-bearing premise

The geometric framework of context integration correctly captures how LLMs internally allocate authority between sensor and user inputs.

What would settle it

An experiment in which the geometric measures show that numerical sensor data does integrate into answer-relevant directions, or in which inversion disappears under a different input format or architecture, would falsify the central claim.

Figures

Figures reproduced from arXiv: 2605.23938 by Long Zhang, Wei-Neng Chen, Zi-Bo Qin.

Figure 1
Figure 1. Figure 1: Trust distribution under sensor–user conflict across four models and four datasets. Blue: sensor trust [PITH_FULL_IMAGE:figures/full_fig_p012_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Distribution of geometric AAI across models and datasets. Dashed line marks AAI [PITH_FULL_IMAGE:figures/full_fig_p013_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: CIR comparison: sensor (blue) vs. user (red). On HAR tasks, CIR [PITH_FULL_IMAGE:figures/full_fig_p013_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: Theorem 2 validation: predicted vs. observed decision margin. Each point is one conflict instance. The diagonal represents perfect prediction. 6.5 Causal Validation: Theory-Guided Repair (H3) The causal injection experiments provide the strongest causal support for the theoretical framework in our study ( [PITH_FULL_IMAGE:figures/full_fig_p014_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: Causal interventions. (a) Ablation: accuracy after removing the user predictive component vs. controls. [PITH_FULL_IMAGE:figures/full_fig_p015_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: Correction strategy comparison across datasets. GAC consistently outperforms CoT prompting and [PITH_FULL_IMAGE:figures/full_fig_p016_6.png] view at source ↗
Figure 7
Figure 7. Figure 7: Layer-level analysis. Top row: per-layer authority importance (red: top-5 layers). Bottom row: cumulative [PITH_FULL_IMAGE:figures/full_fig_p017_7.png] view at source ↗
Figure 8
Figure 8. Figure 8: Model scale does not resolve authority inversion on numerical-format tasks. (a) Sensor trust rate [PITH_FULL_IMAGE:figures/full_fig_p018_8.png] view at source ↗
Figure 9
Figure 9. Figure 9: Complete evidence summary. (a) Trust distribution across all model–dataset combinations. (b) Author [PITH_FULL_IMAGE:figures/full_fig_p022_9.png] view at source ↗
read the original abstract

Large language models (LLMs) increasingly fuse heterogeneous inputs in ubiquitous systems. Yet, how LLMs implicitly allocate authority when sensor measurements and user claims conflict remains unexamined, raising critical reliability concerns for deployments where physical sensing must retain priority. Unlike explicit traditional fusion, LLMs bury authority allocation within learned representations. We discover this allocation is severely format-dependent: numerical sensor data fails to integrate into answer-relevant model directions, allowing natural-language claims to dominate the final decision, a phenomenon we term \textbf{Authority Inversion}.To diagnose and mitigate this, we develop a geometric framework of context integration, introduce two computable audit metrics, specifically the Context Integration Ratio (CIR) and Authority Alignment Index (AAI), and propose Geometric Authority Calibration (GAC), an inference-time layer-level intervention to suppress misplaced user authority. Evaluating four models (4B to 35B parameters, three architectures) across four datasets totaling 576 conflict instances reveals extreme inversion: on numerical tasks, models exhibit near-zero sensor trust (AAI = -0.805, Cohen's d = -2.14), unaffected by model capacity. Validating our geometric framework, theory-guided causal injection flips 80.2\% of incorrect decisions (vs. <0.4\% for random controls). Practically, GAC improves HAR accuracy from 0 -- 1.6\% to 21.9 -- 27.5\%, outperforming prompting baselines. Ultimately, authority allocation in LLM-mediated systems must be explicitly audited and application-specifically configured rather than left implicit.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 2 minor

Summary. The paper claims that LLMs in ubiquitous systems exhibit 'Authority Inversion,' where numerical sensor data fails to integrate into answer-relevant model directions while natural-language user claims dominate decisions. It introduces a geometric framework of context integration along with audit metrics CIR and AAI, plus an inference-time GAC intervention. Experiments across four models (4B–35B) and four datasets (576 conflict instances) report extreme inversion (AAI = -0.805, Cohen's d = -2.14) independent of model size, with theory-guided causal injection flipping 80.2% of decisions (vs. <0.4% random) and GAC raising HAR accuracy from 0–1.6% to 21.9–27.5%.

Significance. If the geometric framework validly isolates authority allocation (rather than surface format biases), the result would be significant for reliability in sensor-LLM deployments, showing that implicit fusion cannot be trusted and that explicit auditing plus application-specific calibration is required. The scale of the evaluation and the causal-injection validation are strengths if the proxy metrics are shown to track decision weight rather than token-type statistics.

major comments (2)
  1. [Abstract] Abstract and geometric-framework section: the central claim that sensor inputs 'fail to integrate into answer-relevant model directions' while user claims dominate depends on CIR/AAI correctly measuring authority allocation. The reported causal-injection result (80.2% flip rate) only establishes that the chosen directions affect output; it does not rule out that those directions primarily track surface statistics (numeric vs. word embeddings) rather than authority per se. A direct test distinguishing authority from format bias is needed to support the inversion diagnosis and GAC intervention.
  2. [Evaluation] Evaluation section: the reported AAI = -0.805 and 80.2% flip rate are presented without accompanying dataset statistics, exact conflict-instance construction, or ablation on whether the geometric directions remain stable under format-preserving perturbations of the sensor data. These omissions make it impossible to assess whether the quantitative outcomes are robust or reducible to the fitted parameters of the framework.
minor comments (2)
  1. Provide explicit equations for CIR and AAI in the main text rather than deferring all definitions to the appendix.
  2. Clarify the precise layer(s) at which GAC is applied and whether the intervention is architecture-specific.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive feedback, which highlights important aspects of validating our geometric framework. We address each major comment below and will incorporate revisions to strengthen the manuscript.

read point-by-point responses
  1. Referee: [Abstract] Abstract and geometric-framework section: the central claim that sensor inputs 'fail to integrate into answer-relevant model directions' while user claims dominate depends on CIR/AAI correctly measuring authority allocation. The reported causal-injection result (80.2% flip rate) only establishes that the chosen directions affect output; it does not rule out that those directions primarily track surface statistics (numeric vs. word embeddings) rather than authority per se. A direct test distinguishing authority from format bias is needed to support the inversion diagnosis and GAC intervention.

    Authors: We agree that a direct test separating authority allocation from surface format biases would strengthen the central claim. Our framework defines directions via integration into answer-relevant subspaces rather than token-type statistics, and the theory-guided causal injection targets those subspaces specifically. To address the concern explicitly, we will add an ablation in the revised manuscript that applies format-preserving perturbations to sensor data (e.g., converting numeric values to equivalent word forms while preserving semantics) and checks whether the identified directions and metrics remain stable. This will provide additional evidence that the observed inversion reflects authority allocation rather than format alone. revision: yes

  2. Referee: [Evaluation] Evaluation section: the reported AAI = -0.805 and 80.2% flip rate are presented without accompanying dataset statistics, exact conflict-instance construction, or ablation on whether the geometric directions remain stable under format-preserving perturbations of the sensor data. These omissions make it impossible to assess whether the quantitative outcomes are robust or reducible to the fitted parameters of the framework.

    Authors: We will revise the Evaluation section to include comprehensive dataset statistics for the four datasets, a precise description of the conflict-instance construction procedure that produced the 576 instances, and the requested ablation on format-preserving perturbations of sensor data. These additions will allow readers to evaluate robustness directly. revision: yes

Circularity Check

0 steps flagged

No circularity: geometric framework and metrics are developed as diagnostic tools with independent empirical validation

full rationale

The paper introduces a geometric framework of context integration along with CIR and AAI metrics to audit authority allocation between sensor and user inputs, then validates via theory-guided causal injection that flips 80.2% of decisions (vs. <0.4% random). No step reduces a claimed result to its own inputs by construction, self-citation load-bearing, or fitted-parameter renaming; the framework is presented as a new diagnostic lens applied to observed format-dependent behavior across four models and 576 instances, with GAC as a separate intervention. The central claim of authority inversion rests on empirical measurements rather than definitional equivalence.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 4 invented entities

Review based on abstract only; no explicit free parameters, axioms, or invented entities are detailed beyond the introduction of new terms and metrics.

axioms (1)
  • domain assumption LLMs bury authority allocation within learned representations unlike explicit traditional fusion
    Stated in abstract as the contrast motivating the work.
invented entities (4)
  • Authority Inversion no independent evidence
    purpose: Name for the observed dominance of user claims over sensor data
    New term coined in the paper
  • Context Integration Ratio (CIR) no independent evidence
    purpose: Computable audit metric for context integration
    Introduced as part of the geometric framework
  • Authority Alignment Index (AAI) no independent evidence
    purpose: Computable audit metric for authority alignment
    Introduced as part of the geometric framework
  • Geometric Authority Calibration (GAC) no independent evidence
    purpose: Inference-time layer-level intervention
    Proposed to suppress misplaced user authority

pith-pipeline@v0.9.1-grok · 5819 in / 1364 out tokens · 47207 ms · 2026-07-01T09:17:28.429430+00:00 · methodology

discussion (0)

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