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Showing 7462 results for "roberto visintainer"
Engineering Preprint PDF DOI

Feedback Linearization of Hyperbolic PDEs with Volterra Nonlinearities

Miroslav Krstic ยท 2026

Alberto Isidori's framework of geometric nonlinear control, and particularly of feedback linearization, is the inspiration behind PDE backstepping: apply a transfromation of the state to cast the planโ€ฆ

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AI & Data Science Preprint PDF DOI

LLMs Capture Emotion Labels, Not Emotion Uncertainty: Distributional Analysis and Calibration of Human--LLM Judgment Gaps

Keito Inoshita, Xiaokang Zhou, Akira Kawai, Katsutoshi Yada ยท 2026

Human annotators frequently disagree on emotion labels, yet most evaluations of Large Language Model (LLM) emotion annotation collapse these judgments into a single gold standard, discarding the distrโ€ฆ

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Physics Preprint PDF DOI

Fractional Cosmic String Loops In Expanding Universe

Pankaj Chaturvedi, Bikram Nath ยท 2026

We study the dynamics of circular cosmic string loops in a spatially flat Friedmann Lema\^itre Robertson Walker universe within a fractional Polyakov framework that incorporates nonlocal memory effectโ€ฆ

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AI & Data Science Preprint PDF DOI

Naamah: A Large Scale Synthetic Sanskrit NER Corpus via DBpedia Seeding and LLM Generation

Akhil Rajeev P, Annarao Kulkarni ยท 2026

The digitisation of classical Sanskrit literature is impeded by a scarcity of annotated resources, particularly for Named Entity Recognition. While recent methodologies utilise generic Large Language โ€ฆ

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AI & Data Science Preprint PDF DOI

SG-UniBuc-NLP at SemEval-2026 Task 6: Multi-Head RoBERTa with Chunking for Long-Context Evasion Detection

Gabriel Stefan, Sergiu Nisioi ยท 2026

We describe our system for SemEval-2026 Task 6 (CLARITY: Unmasking Political Question Evasions), which classifies English political interview responses by coarse-grained clarity (3-way) and fine-grainโ€ฆ

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Computer Science Preprint PDF DOI

Bug-Report-Driven Fault Localization: Industrial Benchmarking and Lesson Learned at ABB Robotics

Pernilla Hall, Anton Ununger, Riccardo Rubei, Alessio Bucaioni ยท 2026

Software quality assurance remains a major challenge in industrial environments, where large-scale and long-lived systems inevitably accumulate defects. Identifying the location of a fault is often tiโ€ฆ

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Mathematics Preprint PDF DOI

A finitary criterion for selfless tracial C*-algebras

Ali Jabbari ยท 2026

We study the class of selfless C*-probability spaces introduced by Robert. It is known that a selfless tracial algebra has strict comparison and a unique trace. We prove that for separable tracial C*-โ€ฆ

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Computer Science Preprint PDF DOI

#MakeBeefGreatAgain: A Cross-Platform Analysis of Early #MAHA Discourse

Haoning Xue, Yue Li, Benjamin A. Lyons, Andy J. King ยท 2026

Make America Healthy Again (MAHA) is a health-related campaign slogan proposed by Robert F. Kennedy Jr. and later incorporated into the political coalition of President Trump. While #MAHA quickly circโ€ฆ

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Physics Preprint PDF DOI

Integrability of Conformal Killing Vectors in the Eisenhart Lift of Scalar-Field FLRW Cosmology

Takeshi Chiba, Tsuyoshi Houri ยท 2026

We study the integrability conditions of the conformal Killing equations for the Eisenhart lift of a scalar field in a flat Friedmann-Lema\^\i tre-Robertson-Walker universe. We show that the potentialโ€ฆ

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Physics Preprint PDF DOI

Cosmological discrete self-similarity in primordial black hole formation

Luis E. Padilla, Tomohiro Harada, Ethan Milligan, David Mulryne ยท 2026

We demonstrate that discrete self-similarity (DSS), originally discovered in the collapse of a massless scalar field in an asymptotically flat system, survives in primordial black hole (PBH) formationโ€ฆ

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AI & Data Science Preprint PDF DOI

MKJ at SemEval-2026 Task 9: A Comparative Study of Generalist, Specialist, and Ensemble Strategies for Multilingual Polarization

Maziar Kianimoghadam Jouneghani ยท 2026

We present a systematic study of multilingual polarization detection across 22 languages for SemEval-2026 Task 9 (Subtask 1), contrasting multilingual generalists with language-specific specialists anโ€ฆ

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Mathematics Preprint PDF DOI

Doubly Saturated Ramsey Graphs: A Case Study in Computer-Assisted Mathematical Discovery

Benjamin Przybocki, John Mackey, Marijn J. H. Heule, Bernardo Subercaseaux ยท 2026

Ramsey-good graphs are graphs that contain neither a clique of size $s$ nor an independent set of size $t$. We study doubly saturated Ramsey-good graphs, defined as Ramsey-good graphs in which the addโ€ฆ

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AI & Data Science Preprint PDF DOI

Enhancing Science Classroom Discourse Analysis through Joint Multi-Task Learning for Reasoning-Component Classification

Jiho Noh, Mukhesh Raghava Katragadda, Raymond Carl, Soon Lee ยท 2026

Analyzing the reasoning patterns of students in science classrooms is critical for understanding knowledge construction mechanism and improving instructional practice to maximize cognitive engagement,โ€ฆ

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AI & Data Science Preprint PDF DOI

Scalable AI Inference: Performance Analysis and Optimization of AI Model Serving

Hung Cuong Pham, Fatih Gedikli ยท 2026

AI research often emphasizes model design and algorithmic performance, while deployment and inference remain comparatively underexplored despite being critical for real-world use. This study addressesโ€ฆ

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AI & Data Science Preprint PDF DOI

Physics-Guided Dimension Reduction for Simulation-Free Operator Learning of Stiff Differential-Algebraic Systems

Huy Hoang Le, Haoguang Wang, Christian Moya, Marcos Netto, Guang Lin ยท 2026

Neural surrogates for stiff differential-algebraic equations (DAEs) face two barriers: soft-constraint methods leave algebraic residuals that stiffness amplifies into errors, and hard-constraint methoโ€ฆ

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Physics Preprint PDF DOI

Thermodynamic behavior of cosmological models with fractional entropy

Miguel Cruz, Diego da Silva, Simon Gonzalez, Samuel Lepe, Joel Saavedra, Manuel Gonzalez-Espinoza ยท 2026

We investigate the thermodynamic and phenomenological implications of a cosmological model governed by fractional entropy applied to the apparent horizon of a flat Friedmann-Lema\^{i}tre-Robertson-Walโ€ฆ

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AI & Data Science Preprint PDF DOI

Does Welsh media need a review? Detecting bias in Nation.Cymru's political reporting

Cai Parry-Jones ยท 2026

Wales' political landscape has been marked by growing accusations of bias in Welsh media. This paper takes the first computational step toward testing those claims by examining Nation.Cymru, a promineโ€ฆ

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AI & Data Science Preprint PDF DOI

When Informal Text Breaks NLI: Tokenization Failure, Distribution Shift, and Targeted Mitigations

Avinash Goutham Aluguvelly ยท 2026

We study how informal surface forms degrade NLI accuracy in ELECTRA-small (14M) and RoBERTa-large (355M) across four transforms applied to SNLI and MultiNLI: slang substitution, emoji replacement, Genโ€ฆ

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Engineering Preprint PDF DOI

Physics-informed, Generative Adversarial Design of Funicular Shells

Ruben Lourenco, Iciar Alfaro, Beatriz Moya, Elias Cueto ยท 2026

Shell structures are pivotal in the fields of architecture and engineering, due to their aesthetic appeal and structural efficiency. Recently, 3D concrete printing has reignited the interest in these โ€ฆ

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Physics Preprint PDF DOI

Viable Cosmological Solutions from Hybrid Potentials

Koralia Tzanni, John Miritzis ยท 2026

We study flat Friedmann-Lema\^{\i}tre-Robertson-Walker (FLRW) models with a perfect fluid matter source and a scalar field minimally coupled to matter with power-law-exponential \textquotedblleft hybrโ€ฆ

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