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🔍 christian bertram 📂 Computer Science
Showing 169 results for "christian bertram" in Computer Science
Computer Science Preprint PDF DOI

Can Persona-Prompted LLMs Emulate Subgroup Values? An Empirical Analysis of Generalisability and Fairness in Cultural Alignment

Bryan Chen Zhengyu Tan, Zhengyuan Liu, Xiaoyuan Yi, Jing Yao, Xing Xie, Nancy F. Chen, Roy Ka-Wei Lee · 2026

Despite their global prevalence, many Large Language Models (LLMs) are aligned to a monolithic, often Western-centric set of values. This paper investigates the more challenging task of fine-grained v…

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Computer Science Preprint PDF DOI

ReqFusion: A Multi-Provider Framework for Automated PEGS Analysis Across Software Domains

Muhammad Khalid, Manuel Oriol, Yilmaz Uygun · 2026

Requirements engineering is a vital, yet labor-intensive, stage in the software development process. This article introduces ReqFusion: an AI-enhanced system that automates the extraction, classificat…

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Computer Science Preprint PDF DOI

Revisiting the Bertrand Paradox via Equilibrium Analysis of No-regret Learners

Arnab Maiti, Junyan Liu, Kevin Jamieson, Lillian J. Ratliff · 2026

We study the discrete Bertrand pricing game with a non-increasing demand function. The game has $n \ge 2$ players who simultaneously choose prices from the set $\{1/k, 2/k, \ldots, 1\}$, where $k\in\m…

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Computer Science Preprint PDF DOI

Personalized PageRank Estimation in Undirected Graphs

Christian Bertram, Mads Vestergaard Jensen · 2026

Given an undirected graph $G=(V, E)$, the Personalized PageRank (PPR) of $t\in V$ with respect to $s\in V$, denoted $\pi(s,t)$, is the probability that an $\alpha$-discounted random walk starting at $…

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Computer Science Preprint PDF DOI

The Neurosymbolic Frontier of Nonuniform Ellipticity: Formalizing Sharp Schauder Theory via Topos-Theoretic Reasoning Models

Suyash Mishra · 2026

This white paper presents a critical synthesis of the recent breakthrough in nonuniformly elliptic regularity theory and the burgeoning field of neurosymbolic large reasoning models (LRMs). We explore…

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Computer Science Preprint PDF DOI

Beltrami coefficient and angular distortion of discrete geometric mappings

Zhiyuan Lyu, Gary P. T. Choi · 2026

Over the past several decades, geometric mapping methods have been extensively developed and utilized for many practical problems in science and engineering. To assess the quality of geometric mapping…

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Computer Science Preprint PDF DOI

The Personality Trap: How LLMs Embed Bias When Generating Human-Like Personas

Jacopo Amidei, Gregorio Ferreira, Mario Munoz Serrano, Ruben Nieto, Andreas Kaltenbrunner · 2026

This paper examines biases in large language models (LLMs) when generating synthetic populations from responses to personality questionnaires. Using five LLMs, we first assess the representativeness a…

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Computer Science Preprint PDF DOI

Two-chart Beltrami Optimization for Distortion-Controlled Spherical Bijection with Application to Brain Surface Registration

Zhehao Xu, Lok Ming Lui · 2026

Many genus-0 surface mapping tasks such as landmark alignment, feature matching, and image-driven registration, can be reduced (via an initial spherical conformal map) to optimizing a spherical self-h…

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Computer Science Preprint PDF DOI

Characterising Behavioural Families and Dynamics of Promotional Twitter Bots via Sequence-Based Modelling

Ohoud Alzahrani, Russell Beale, Robert J. Hendley · 2025

This paper asks whether promotional Twitter/X bots form behavioural families and whether members evolve similarly. We analyse 2,798,672 tweets from 2,615 ground-truth promotional bot accounts (2006-20…

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Computer Science Preprint PDF DOI

Total Search Problems in $\mathsf{ZPP}$

Noah Fleming, Stefan Grosser, Siddhartha Jain, Jiawei Li, Hanlin Ren, Morgan Shirley, Weiqiang Yuan · 2025

We initiate a systematic study of ${\sf TFZPP}$, the class of total ${\sf NP}$ search problems solvable by polynomial time randomized algorithms. ${\sf TFZPP}$ contains a variety of important search p…

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Computer Science Preprint PDF DOI

Analysis of Inter-Testamental References Reveal Five Groups of Books in the Christian Bible

Isaac Anderson, Wesley Stevick, Katrina Koehler · 2025

The Bible is packed with references from start to finish. This study aims to analyze a specific branch of these references: citations. While there are several types of references, both explicit and im…

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Computer Science Preprint PDF DOI

Algorithmic Advice as a Strategic Signal on Competitive Markets

Tobias R. Rebholz, Maxwell Uphoff, Christian H. R. Bernges, Florian Scholten · 2025

As algorithms increasingly mediate competitive decision-making, their influence extends beyond individual outcomes to shaping strategic market dynamics. In two preregistered experiments, we examined h…

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Computer Science Preprint PDF DOI

Research Output on Alopecia Areata Disease: A Scientometric Analysis of Publications from 2010 to 2019

Muneer Ahmad, M Sadik Batcha · 2025

The present study is undertaken to find out the publication trends on Alopecia Areata Disease during 2010-2019 from the global perspective. The study mainly focus on distribution of research output, t…

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Computer Science Preprint PDF DOI

A Polylogarithmic Competitive Algorithm for Stochastic Online Sorting and TSP

Andreas Kalavas, Charalampos Platanos, Thanos Tolias · 2025

In \emph{Online Sorting}, an array of $n$ initially empty cells is given. At each time step $t$, an element $x_t \in [0,1]$ arrives and must be placed irrevocably into an empty cell without any knowle…

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Computer Science Preprint PDF DOI

Die Verarbeitung medizinischer Forschungsdaten ohne datenschutzrechtliche Einwilligung: Der Korridor zwischen Anonymisierung und der Forschungsausnahme in \"Osterreich

Saskia Kaltenbrunner, Michael Schmidbauer · 2025

Modern, data-driven medical research requires the processing of sensitive health data on a large scale. However, this data is subject to special protection under the GDPR, which is why processing regu…

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Computer Science Preprint PDF DOI

A Polylogarithmic Competitive Algorithm for Stochastic Online Sorting and TSP

Andreas Kalavas, Charalampos Platanos, Thanos Tolias · 2025

In \emph{Online Sorting}, an array of $n$ initially empty cells is given. At each time step $t$, an element $x_t \in [0,1]$ arrives and must be placed irrevocably into an empty cell without any knowle…

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Computer Science Preprint PDF DOI

RLZ-r and LZ-End-r: Enhancing Move-r

Patrick Dinklage, Johannes Fischer, Lukas Nalbach, Jan Zumbrink · 2025

In pattern matching on strings, a locate query asks for an enumeration of all the occurrences of a given pattern in a given text. The r-index [Gagie et al., 2018] is a recently presented compressed se…

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Computer Science Preprint PDF DOI

Algorithmic Pricing and Algorithmic Collusion

Martin Bichler, Julius Durmann, Matthias Oberlechner · 2025

The rise of algorithmic pricing in online retail platforms has attracted significant interest in how autonomous software agents interact under competition. This article explores the potential emergenc…

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Computer Science Preprint PDF DOI

A Computational Analysis and Visualization of In-Text Reference Networks Across Philosophical Texts

Robert Becker, Aron Culotta · 2025

We applied computational methods to analyze references across 2,245 philosophical texts, spanning from approximately 550 BCE to 1940 AD, in order to measure patterns in how philosophical ideas have sp…

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Computer Science Preprint PDF DOI

Semicoarse Correlated Equilibria and LP-Based Guarantees for Gradient Dynamics in Normal-Form Games

Mete Seref Ahunbay, Martin Bichler · 2025

Projected gradient ascent is known to satisfy no-external regret as a learning algorithm. However, recent empirical work shows that projected gradient ascent often finds the Nash equilibrium in settin…

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