collaborators

7 papers

cs.LG2025

Taxonomy, Opportunities, and Challenges of Representation Engineering for Large Language Models

Jan Wehner, Sahar Abdelnabi, Daniel Tan +2

Representation Engineering (RepE) is a novel paradigm for controlling the behavior of LLMs. Unlike traditional approaches that modify inputs or fine-tune the model, RepE directly m…

cs.LG2025

Context-Aware Reasoning On Parametric Knowledge for Inferring Causal Variables

Ivaxi Sheth, Sahar Abdelnabi, Mario Fritz

Scientific discovery catalyzes human intellectual advances, driven by the cycle of hypothesis generation, experimental design, evaluation, and assumption refinement. Central to thi…

cs.CR2025

Certifiably robust malware detectors by design

Pierre-Francois Gimenez, Sarath Sivaprasad, Mario Fritz

Malware analysis involves analyzing suspicious software to detect malicious payloads. Static malware analysis, which does not require software execution, relies increasingly on mac…

cs.CL2025

A Theory of Response Sampling in LLMs: Part Descriptive and Part Prescriptive

Sarath Sivaprasad, Pramod Kaushik, Sahar Abdelnabi +1

Large Language Models (LLMs) are increasingly utilized in autonomous decision-making, where they sample options from vast action spaces. However, the heuristics that guide this sam…

cs.CR2025

Get my drift? Catching LLM Task Drift with Activation Deltas

Sahar Abdelnabi, Aideen Fay, Giovanni Cherubin +3

LLMs are commonly used in retrieval-augmented applications to execute user instructions based on data from external sources. For example, modern search engines use LLMs to answer q…

cs.LG2025

Can LLMs Separate Instructions From Data? And What Do We Even Mean By That?

Egor Zverev, Sahar Abdelnabi, Soroush Tabesh +2

Instruction-tuned Large Language Models (LLMs) show impressive results in numerous practical applications, but they lack essential safety features that are common in other areas of…