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arxiv: 2605.12370 · v1 · submitted 2026-05-12 · 💻 cs.CL · cs.IR

Recognition: 2 theorem links

· Lean Theorem

Context Convergence Improves Answering Inferential Questions

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Pith reviewed 2026-05-13 05:57 UTC · model grok-4.3

classification 💻 cs.CL cs.IR
keywords inferential QALLM context selectionconvergence metricpassage constructionTriviaHG datasetopen-domain question answeringreasoning in LLMs
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The pith

Passages from high-convergence sentences substantially boost LLM accuracy on inferential questions.

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

The paper examines whether the structure of context passages affects how well large language models handle inferential questions, where answers must be derived from combined clues rather than directly retrieved. It defines convergence as the degree to which a sentence eliminates incorrect answer options and uses this to build passages from subsets of the TriviaHG dataset. Across six LLMs, passages assembled from higher-convergence sentences produce markedly better accuracy than passages chosen by cosine similarity. Ordering sentences from highest to lowest convergence adds a modest further improvement. The results position convergence as a concrete signal for constructing contexts that support reasoning.

Core claim

Passages built from sentences with higher convergence lead to substantially better answer accuracy than those selected by cosine similarity, indicating that convergence captures meaningful relevance for inferential reasoning. Ordering sentences by descending convergence slightly improves performance, suggesting that LLMs tend to prioritize earlier, information-rich cues.

What carries the argument

Convergence, the measure of how effectively a sentence eliminates incorrect answers, used to select and order sentences when forming passages for inferential QA.

Load-bearing premise

The accuracy gains arise primarily because of the convergence property rather than other unexamined characteristics of the selected sentences or the particular dataset.

What would settle it

A replication on a different inferential QA dataset in which high-convergence passages show no accuracy advantage over cosine-similarity passages, or an ablation that matches passages on length and lexical features while varying only convergence and finds no difference.

Figures

Figures reproduced from arXiv: 2605.12370 by Adam Jatowt, Bhawna Piryani, Jamshid Mozafari.

Figure 1
Figure 1. Figure 1: An inferential question accompanied by three dis [PITH_FULL_IMAGE:figures/full_fig_p001_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Few-shot prompt provided to the language model [PITH_FULL_IMAGE:figures/full_fig_p002_2.png] view at source ↗
read the original abstract

While Large Language Models (LLMs) are widely used in open-domain Question Answering (QA), their ability to handle inferential questions-where answers must be derived rather than directly retrieved-remains still underexplored. This study investigates how the structure and quality of passages influence LLM performance on such questions. We focus on convergence, a measure of how effectively sentences (hints) eliminate incorrect answers, as a criterion for constructing passages. Using subsets of the TriviaHG dataset, we form passages by combining sentences with varying convergence levels and evaluate six LLMs of different sizes and architectures. Our results show that passages built from higher convergence sentences lead to substantially better answer accuracy than those selected by cosine similarity, indicating that convergence captures meaningful relevance for inferential reasoning. Additionally, ordering sentences by descending convergence slightly improves performance, suggesting that LLMs tend to prioritize earlier, information-rich cues. These findings highlight convergence as a practical signal for guiding passage construction and analyzing inferential reasoning behavior in LLMs.

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

3 major / 1 minor

Summary. The manuscript claims that passages constructed by selecting sentences with higher 'convergence' (a measure of how effectively they eliminate incorrect answers) yield substantially higher answer accuracy for inferential questions on TriviaHG subsets than passages selected via cosine similarity. This holds across six LLMs of varying sizes and architectures; additionally, ordering sentences in descending convergence order provides a slight further boost, suggesting LLMs prioritize early, high-value cues.

Significance. If the reported gains prove robust after controlling for sentence-level confounders, the work would supply a practical, task-specific signal for context construction in open-domain inferential QA that goes beyond standard semantic similarity. The multi-model evaluation adds modest generalizability, but the purely empirical framing and absence of mechanistic analysis or falsifiable predictions limit its theoretical reach.

major comments (3)
  1. [Abstract / Methods] Abstract and Methods: the computation of convergence is not specified (how incorrect answers are generated or eliminated, whether it is normalized, etc.), nor are any controls reported for confounding sentence properties such as length, lexical overlap, embedding magnitude, or original context position. Without these, the accuracy advantage over cosine selection cannot be attributed to the elimination mechanism rather than correlated surface features.
  2. [Results] Results: no statistical significance tests, error bars, or ablation studies are described for the accuracy differences across the six LLMs. The claim that convergence 'captures meaningful relevance' therefore rests on unquantified numerical improvements whose reliability cannot be assessed.
  3. [Results] The secondary observation that descending-convergence ordering helps is consistent with either the proposed elimination account or with simpler positional or salience biases; the design does not isolate the claimed mechanism.
minor comments (1)
  1. [Abstract] Abstract: the phrase 'remains still underexplored' is redundant; 'remains underexplored' is sufficient.

Simulated Author's Rebuttal

3 responses · 0 unresolved

We thank the referee for the constructive comments, which help clarify the presentation and strengthen the empirical claims. We address each major point below and indicate the planned revisions.

read point-by-point responses
  1. Referee: [Abstract / Methods] Abstract and Methods: the computation of convergence is not specified (how incorrect answers are generated or eliminated, whether it is normalized, etc.), nor are any controls reported for confounding sentence properties such as length, lexical overlap, embedding magnitude, or original context position. Without these, the accuracy advantage over cosine selection cannot be attributed to the elimination mechanism rather than correlated surface features.

    Authors: We agree that the Methods section must specify the convergence computation in full detail. In the revised manuscript we will add: (1) the exact procedure for generating incorrect answers (zero-shot prompting of the target LLM on the question alone), (2) the formula for convergence as the fraction of those incorrect answers eliminated when the sentence is appended, and (3) any normalization applied. We will also include supplementary analyses that control for sentence length, lexical overlap with the question, embedding magnitude, and original document position. These controls will be reported as additional tables to demonstrate that the observed gains are not reducible to the listed surface features. revision: yes

  2. Referee: [Results] Results: no statistical significance tests, error bars, or ablation studies are described for the accuracy differences across the six LLMs. The claim that convergence 'captures meaningful relevance' therefore rests on unquantified numerical improvements whose reliability cannot be assessed.

    Authors: We acknowledge the lack of statistical quantification. The revised version will report error bars (standard deviation across multiple inference runs with varied random seeds) for all accuracy figures. We will add paired statistical tests (McNemar’s test on per-question correctness and, where appropriate, t-tests on accuracy deltas) together with p-values for the convergence versus cosine comparisons. In addition, we will include ablation curves that show accuracy as a function of the number of highest-convergence sentences retained, thereby quantifying the incremental contribution of the convergence signal. revision: yes

  3. Referee: [Results] The secondary observation that descending-convergence ordering helps is consistent with either the proposed elimination account or with simpler positional or salience biases; the design does not isolate the claimed mechanism.

    Authors: The referee is right that the ordering benefit could arise from positional or salience biases rather than the elimination mechanism. We will add a control experiment that keeps the identical set of high-convergence sentences but presents them in random order versus descending-convergence order. The performance difference between these two conditions will be reported; any residual advantage of the descending order can then be interpreted more precisely. We continue to regard the primary result as the selection of sentences by convergence rather than by cosine similarity, with ordering treated as a secondary practical observation. revision: partial

Circularity Check

0 steps flagged

No circularity: purely empirical comparison of passage-selection heuristics

full rationale

The paper reports an experimental comparison of two passage-construction strategies (high-convergence sentences vs. cosine-similarity sentences) on fixed TriviaHG subsets, evaluated by accuracy of six LLMs. Convergence is introduced as an externally defined elimination metric and is never fitted or redefined inside the study; the accuracy difference is measured directly rather than derived from any equation or self-referential prediction. No self-citation chain, ansatz, or uniqueness theorem is invoked to justify the central result. The work is therefore self-contained against external benchmarks and contains no load-bearing step that reduces to its own inputs by construction.

Axiom & Free-Parameter Ledger

0 free parameters · 2 axioms · 1 invented entities

The central claim relies on the empirical validity of the convergence metric and the experimental design using the TriviaHG dataset.

axioms (2)
  • domain assumption The TriviaHG dataset subsets are representative for testing inferential question answering.
    Used as the basis for experiments.
  • domain assumption LLM performance differences are attributable to passage quality rather than model-specific behaviors.
    Evaluated across multiple models but assumes generalizability.
invented entities (1)
  • convergence no independent evidence
    purpose: A measure of how effectively sentences eliminate incorrect answers for passage construction.
    Defined and used in the study as a new signal for relevance.

pith-pipeline@v0.9.0 · 5472 in / 1268 out tokens · 61427 ms · 2026-05-13T05:57:59.245269+00:00 · methodology

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