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Swarthmore College

Academic institutionnorthamerica · us
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Research library9linked papers
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Selected work

Representative Papers

One Adaptive Trailing Head Can Outperform Many Oblivious Trailing Heads

May 28, 2026

This study investigates the advantage of adaptive trailing heads over arbitrarily many non-adaptive trailing heads in sequence predictability within the framework of finite-state strong dimension. By integrating multi-head finite-state automata, finite-state dimension theory, and information-theoretic analysis, the authors construct a binary sequence for which the strong dimension under an adaptive two-head model is at least 0.3 lower than that under any non-adaptive multi-head model. This result demonstrates—by a substantial and consistent margin—that even a single adaptive trailing head can outperform any number of non-adaptive heads employing fixed strategies. The finding strengthens and extends existing dimension separation results, highlighting the fundamental superiority of adaptive strategies in finite-state prediction.

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ScamPilot: Simulating Conversations with LLMs to Protect Against Online Scams

Jan 30, 2026

This study addresses the growing challenge of evolving online scams, which outpace existing automated defense systems in equipping users to recognize novel fraud tactics. To bridge this gap, the authors propose a conversational anti-fraud training framework powered by large language models, featuring two interacting agents—one simulating a scammer and the other a potential victim—to dynamically recreate realistic scam scenarios. The approach integrates real-time user intervention with multiple-choice prompts, encouraging participants to provide actionable advice that reinforces fraud awareness. In a controlled experiment involving 150 participants, the method significantly improved scam identification accuracy by 8%, response effectiveness by 9%, and self-efficacy by 19%. Notably, users predominantly offered action-oriented recommendations without compromising trust in legitimate interactions.

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Recent publications

Latest Papers

One Adaptive Trailing Head Can Outperform Many Oblivious Trailing Heads

May 28, 2026

This study investigates the advantage of adaptive trailing heads over arbitrarily many non-adaptive trailing heads in sequence predictability within the framework of finite-state strong dimension. By integrating multi-head finite-state automata, finite-state dimension theory, and information-theoretic analysis, the authors construct a binary sequence for which the strong dimension under an adaptive two-head model is at least 0.3 lower than that under any non-adaptive multi-head model. This result demonstrates—by a substantial and consistent margin—that even a single adaptive trailing head can outperform any number of non-adaptive heads employing fixed strategies. The finding strengthens and extends existing dimension separation results, highlighting the fundamental superiority of adaptive strategies in finite-state prediction.

0 citationsRead paper

ScamPilot: Simulating Conversations with LLMs to Protect Against Online Scams

Jan 30, 2026

This study addresses the growing challenge of evolving online scams, which outpace existing automated defense systems in equipping users to recognize novel fraud tactics. To bridge this gap, the authors propose a conversational anti-fraud training framework powered by large language models, featuring two interacting agents—one simulating a scammer and the other a potential victim—to dynamically recreate realistic scam scenarios. The approach integrates real-time user intervention with multiple-choice prompts, encouraging participants to provide actionable advice that reinforces fraud awareness. In a controlled experiment involving 150 participants, the method significantly improved scam identification accuracy by 8%, response effectiveness by 9%, and self-efficacy by 19%. Notably, users predominantly offered action-oriented recommendations without compromising trust in legitimate interactions.

0 citationsRead paper