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Nicholas Crispino

6 accepted papers

2026

RepIt: Steering Language Models with Concept-Specific Refusal Vectors

ICLR 2026poster

Current safety evaluations of language models rely on benchmark-based assessments that may miss targeted vulnerabilities. We present RepIt, a simple and data-efficient framework for isolating concept-specific representations in LM activations. While existing steering methods already achieve high att…

Cited by 0SourcecodeScholar
2026

SteeringSafety: Benchmarking Representation Steering in LLMs Across Safety Perspectives

ICML 2026poster

We introduce STEERINGSAFETY, a benchmark for evaluating representation steering methods across nine safety perspectives spanning 18 datasets. While prior work highlights general capabilities of representation steering, we focus on safety perspectives including bias, harmfulness, hallucination, socia…

Cited by 0SourceScholar
2025

COSMIC: Generalized Refusal Direction Identification in LLM Activations

ACL 2025finding

Large Language Models encode behaviors like refusal within their activation space, but identifying these behaviors remains challenging. Existing methods depend on predefined refusal templates detectable in output tokens or manual review. We introduce **COSMIC** (Cosine Similarity Metrics for Inversi…

2025

VMDT: Decoding the Trustworthiness of Video Foundation Models

NeurIPS 2025poster

As foundation models become more sophisticated, ensuring their trustworthiness becomes increasingly critical; yet, unlike text and image, the video modality still lacks comprehensive trustworthiness benchmarks. We introduce VMDT (Video-Modal DecodingTrust), the first unified platform for evaluating…

Cited by 0SourcecodeScholar
2024

Agent Instructs Large Language Models to be General Zero-Shot Reasoners

ICML 2024poster

We introduce a method to improve the zero-shot reasoning abilities of large language models on general language understanding tasks. Specifically, we build an autonomous agent to instruct the reasoning process of large language models. To enable this, our agent only needs to generate a single set of…