Tootfinder

Les chimpanzés sont presque aussi rationnels que nous, selon une série d'expériences menées par l'anthropologue évolutionniste Jan Engelmann.
https://arstechnica.com/science/2025/11/the-evolution-of-rationality-h…

$p$-retract Rationality and Norm One Tori
Kazuki Sato
https://arxiv.org/abs/2510.10027 https://arxiv.org/pdf/2510.10027

$p$-retract Rationality and Norm One Tori
We study whether the norm one torus associated with a finite separable non-Galois field extension $K/k$ is $p$-retract rational over $k$ for a prime $p$, focusing on the case where the Galois group of the Galois closure of $K/k$ is either the symmetric or the alternating group.

Geoffrion's theorem beyond finiteness and rationality
Santanu S. Dey, Fr\'ed\'eric Meunier, Diego Moran Ramirez
https://arxiv.org/abs/2510.10966 https://

Geoffrion's theorem beyond finiteness and rationality
Geoffrion's theorem is a fundamental result from mathematical programming assessing the quality of Lagrangian relaxation, a standard technique to get bounds for integer programs. An often implicit condition is that the set of feasible solutions is finite or described by rational linear constraints. However, we show through concrete examples that the conclusion of Geoffrion's theorem does not necessarily hold when this condition is dropped. We then provide sufficient conditions ensuring the vali…

Do Railway Commuters Exhibit Consistent Route Choice Rationality Across Different Contexts and Time? Evidence from Tokyo metropolitan Commutes
Yixuan Y Zheng, Hideki Takayasu, Misako Takayasu
https://arxiv.org/abs/2510.12381

Do Railway Commuters Exhibit Consistent Route Choice Rationality Across Different Contexts and Time? Evidence from Tokyo metropolitan Commutes
Recent advances in data collection and technology enable a deeper understanding of complex urban commuting, yet few studies have rigorously analyzed the temporal stability and Origin-Destination (OD) heterogeneity of route choice. To address this, we analyze one year of smartphone position data from over one million users in the Tokyo metropolitan area to extract high-resolution commuting trajectories. Our methodology is twofold: First, we develop algorithms to process raw position data, accura…

"Chimpanzees revise their beliefs if they encounter new information, a hallmark of rationality that was once assumed to be unique to humans"
(Original title: Chimps Are Capable of Human-Like Rational Thought, Breakthrough Study Finds)
https://www.404med…

Incentivizing Time-Aware Fairness in Data Sharing
Jiangwei Chen, Kieu Thao Nguyen Pham, Rachael Hwee Ling Sim, Arun Verma, Zhaoxuan Wu, Chuan-Sheng Foo, Bryan Kian Hsiang Low
https://arxiv.org/abs/2510.09240

Incentivizing Time-Aware Fairness in Data Sharing
In collaborative data sharing and machine learning, multiple parties aggregate their data resources to train a machine learning model with better model performance. However, as the parties incur data collection costs, they are only willing to do so when guaranteed incentives, such as fairness and individual rationality. Existing frameworks assume that all parties join the collaboration simultaneously, which does not hold in many real-world scenarios. Due to the long processing time for data cle…

Rationality fields of CM modular forms
Kimball Martin
https://arxiv.org/abs/2509.24119 https://arxiv.org/pdf/2509.24119

Rationality fields of CM modular forms
We formulate a conjecture on the finitude of rationality fields (i.e., Fourier coefficient fields) of newforms of bounded degree, and prove this for CM forms assuming a generalized Riemann hypothesis. Then we explicitly determine what quadratic and cubic rationality fields occur for weight 2 CM forms, which is related to classifications of CM abelian varieties of GL(2) type. Several of these fields do not appear in the existing tables of newforms in the LMFDB.

Trade in Minutes! Rationality-Driven Agentic System for Quantitative Financial Trading
Zifan Song, Kaitao Song, Guosheng Hu, Ding Qi, Junyao Gao, Xiaohua Wang, Dongsheng Li, Cairong Zhao
https://arxiv.org/abs/2510.04787

Trade in Minutes! Rationality-Driven Agentic System for Quantitative Financial Trading
Recent advancements in large language models (LLMs) and agentic systems have shown exceptional decision-making capabilities, revealing significant potential for autonomic finance. Current financial trading agents predominantly simulate anthropomorphic roles that inadvertently introduce emotional biases and rely on peripheral information, while being constrained by the necessity for continuous inference during deployment. In this paper, we pioneer the harmonization of strategic depth in agents w…

Crosslisted article(s) found for math.GR. https://arxiv.org/list/math.GR/new
[1/1]:
- $p$-retract Rationality and Norm One Tori
Kazuki Sato
https://

Beyond Suboptimality: Resource-Rationality and Task Demands Shape the Complexity of Perceptual Representations
Andrew Jun Lee, Daniel Turek, Omer Daglar Tanrikulu
https://arxiv.org/abs/2509.26606

Beyond Suboptimality: Resource-Rationality and Task Demands Shape the Complexity of Perceptual Representations
Early theories of perception as probabilistic inference propose that uncertainty about the interpretation of sensory input is represented as a probability distribution over many interpretations -- a relatively complex representation. However, critics argue that persistent demonstrations of suboptimal perceptual decision-making indicate limits in representational complexity. We contend that suboptimality arises not from genuine limits, but participants' resource-rational adaptations to task dema…

Optimizing for Persuasion Improves LLM Generalization: Evidence from Quality-Diversity Evolution of Debate Strategies
Aksel Joonas Reedi, Corentin L\'eger, Julien Pourcel, Loris Gaven, Perrine Charriau, Guillaume Pourcel
https://arxiv.org/abs/2510.05909

Optimizing for Persuasion Improves LLM Generalization: Evidence from Quality-Diversity Evolution of Debate Strategies
Large Language Models (LLMs) optimized to output truthful answers often overfit, producing brittle reasoning that fails to generalize. While persuasion-based optimization has shown promise in debate settings, it has not been systematically compared against mainstream truth-based approaches. We introduce DebateQD, a minimal Quality-Diversity (QD) evolutionary algorithm that evolves diverse debate strategies across different categories (rationality, authority, emotional appeal, etc.) through tour…

Replaced article(s) found for math.AG. https://arxiv.org/list/math.AG/new
[1/1]:
- Intermediate Jacobians and rationality over arbitrary fields
Olivier Benoist, Olivier Wittenberg

Irrationality as a mean of regularization in Bayesian Persuasion
Romain Duboscq (IMT, INSA Toulouse), Fr\'ed\'eric de Gournay (IMT, INSA Toulouse)
https://arxiv.org/abs/2510.01759

Irrationality as a mean of regularization in Bayesian Persuasion
We study a regularized variant of the Bayesian Persuasion problem, where the receiver's decision process includes a divergence-based penalty that accounts for deviations from perfect rationality. This modification smooths the underlying optimization landscape and mitigates key theoretical issues, such as measurability and ill-posedness, commonly encountered in the classical formulation. It also enables the use of scalable second-order optimization methods to compute numerically the optimal sign…

On the Chow group of Moduli of parabolic connections
Pradeep Das, Snehajit Misra, Anoop Singh
https://arxiv.org/abs/2509.24504 https://arxiv.org/pdf/2509.2…

On the Chow group of Moduli of parabolic connections
We consider the moduli space of parabolic connections with rational generic weights over a compact Riemann surface of genus $g \geq 3$. We determine the Chow group of the moduli space of parabolic connections such that the underlying parabolic bundle is stable. We also discuss the rationality and rationally connectedness of the moduli space of parabolic connections.