activity
20242026
most citedScalar subleading soft theorems from an infinite tower of charges

1 citations · 2 across the 16 of their papers we have counts for

collaborators

17 papers

cs.MA2026

Do Rollups Self-Organize? Multi-Agent Reinforcement Learning in the EIP-4844 Blob Fee Market

Alessio Brini

EIP-4844 gave Ethereum rollups a separate fee dimension for data, governed by a multiplicative update rule that targets three ``blobs'' per block. Whether this target is reached de…

cs.CY2026

Watermarks Without Verification: AI Text Watermarking After the EU AI Act

Alexander Nemecek, Vipin Chaudhary, Erman Ayday

On August 2, 2026, the obligations of Article 50 of the EU AI Act took effect, requiring generative AI providers to mark the content their systems produce and ensure it can be dete…

cs.CL2026

Auditing Cross-Lingual Fairness in Language Model Watermarking

Alexander Nemecek, Osama Zafar, Debargha Ganguly +3

Watermarking schemes for large language model output are evaluated almost exclusively on English text using each scheme's detection threshold and a narrow set of quality measuremen…

cs.AI2026

Beyond Detection: Evaluating Defensive LLMs Against AI-Generated Social Engineering in Live Turn-by-Turn Interaction

Yuqiao Xu, Osama Zafar, Alexander Nemecek +1

Generative AI makes social-engineering attacks more fluent, adaptive, and scalable, increasing the need for LLM-based de- fenders that can protect users during ongoing interactions…

cs.LG2026

Privacy Policy Enforcement Guardrails for Data-Sensitive Retrieval-Augmented Generation

Osama Zafar, Alexander Nemecek, Yiqian Zhang +5

Standard PII filters often miss contextual data leakage in RAG systems, such as non-regulated attribute clusters that collectively identify individuals. We introduce a Privacy Poli…

cs.LG2026

CausalGuard: Conformal Inference under Graph Uncertainty

Vikash Singh, Weicong Chen, Debargha Ganguly +12

Estimating treatment effects from observational data requires choosing an adjustment set, but valid adjustment depends on an unknown causal graph. Graph misspecification can cause…

cs.CR2026

The End of Trust: How Agentic AI Breaks Security Assumptions

Osama Zafar, Alexander Nemecek, Erman Ayday

For decades, the security of digital interaction has rested on an unacknowledged economic constraint. Attackers faced a tradeoff between the fidelity of a deception and the scale a…

cs.CR2026

Authenticated Contradictions from Desynchronized Provenance and Watermarking

Alexander Nemecek, Hengzhi He, Guang Cheng +1

Cryptographic provenance standards such as C2PA and invisible watermarking are positioned as complementary defenses for content authentication, yet the two verification layers are…

cs.CY2026

Who Gets Flagged? The Pluralistic Evaluation Gap in AI Content Watermarking

Alexander Nemecek, Osama Zafar, Yuqiao Xu +2

Watermarking is becoming the default mechanism for AI content authentication, with governance policies and frameworks referencing it as infrastructure for content provenance. Yet a…

cs.LG2026

Quantifying Memorization and Privacy Risks in Genomic Language Models

Alexander Nemecek, Wenbiao Li, Xiaoqian Jiang +2

Genomic language models (GLMs) have emerged as powerful tools for learning representations of DNA sequences, enabling advances in variant prediction, regulatory element identificat…

stat.ME2025

Optimal Watermark Generation under Type I and Type II Errors

Hengzhi He, Shirong Xu, Alexander Nemecek +3

Watermarking has recently emerged as a crucial tool for protecting the intellectual property of generative models and for distinguishing AI-generated content from human-generated d…

cs.CR2025

Exploring Membership Inference Vulnerabilities in Clinical Large Language Models

Alexander Nemecek, Zebin Yun, Zahra Rahmani +4

As large language models (LLMs) become progressively more embedded in clinical decision-support, documentation, and patient-information systems, ensuring their privacy and trustwor…

cs.CR2025

ZKPROV: A Zero-Knowledge Approach to Dataset Provenance for Large Language Models

Mina Namazi, Alexander Nemecek, Erman Ayday

As large language models (LLMs) are used in sensitive fields, accurately verifying their computational provenance without disclosing their training datasets poses a significant cha…

cs.CR2025★ 1 cited

Watermarking Without Standards Is Not AI Governance

Alexander Nemecek, Yuzhou Jiang, Erman Ayday

Watermarking has emerged as a leading technical proposal for attributing generative AI content and is increasingly cited in global governance frameworks. This position paper argues…

cs.CR2025

The Feasibility of Topic-Based Watermarking on Academic Peer Reviews

Alexander Nemecek, Yuzhou Jiang, Erman Ayday

Large language models (LLMs) are increasingly integrated into academic workflows, with many conferences and journals permitting their use for tasks such as language refinement and…

hep-th2025★ 1 cited

Scalar subleading soft theorems from an infinite tower of charges

Matías Briceño, Hernán A. González, Alfredo Pérez

We investigate conservation laws in the absence of gauge invariance by analyzing interacting scalar theories with a massless scalar field. We construct an infinite tower of charges…

cs.CR2024

Topic-Based Watermarks for Large Language Models

Alexander Nemecek, Yuzhou Jiang, Erman Ayday

The indistinguishability of large language model (LLM) output from human-authored content poses significant challenges, raising concerns about potential misuse of AI-generated text…