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Beyond Calibration: Do a Typed-Decision Model's Probabilities Obey the Probability Axioms?

Paper testing, without labels, whether Jev's probabilities obey probability axioms such as P(X) + P(not X) = 1.

Paperresearch

This summary is based on how curated lists describe the project; its README was not available to review.

Overview

An arXiv paper asking whether a typed decision model's probabilities obey the basic probability axioms, beyond being calibrated. It uses label-free coherence checks, such as comparing the probability for a statement and its negation.

Per the listing, Jev's probabilities for X and not X miss summing to one by 0.064 on average, against 0.293 for Qwen3.8-27B's first-token readout, and its single-label probabilities over-sum (to about 1.14 in one reported case).

What the decision model decides

TypeQuestionAnswers
Yes / noPaired statements X and not X, checked for coherenceyes · no

How it works

  1. Construct paired and partitioned questions
  2. Query Jev and an LLM baseline
  3. Measure deviations from probability axioms

Strengths

  • Checks coherence without labels
  • Compares against an open LLM baseline

Caveats

  • Preprint; only the listing summary was available

At a glance

Type
Paper
Status
research

Use cases and integrations

How curated lists describe it

  • Label-free coherence checks: Jev's probabilities for "X" and "not X" miss summing to one by 0.064 on average against 0.293 for Qwen3.8-27B's first-token readout, and its single-label probabilities over-sum to 1.14

    AnotiaWang/awesome-decision-models

Frequently asked questions

What is tested?

Whether Jev's probabilities are coherent, for example P(X) + P(not X) = 1.

What was found?

An average gap of 0.064 for Jev versus 0.293 for a Qwen baseline, per the listing.

Where is it?

https://arxiv.org/abs/2609.33209

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