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University of Hawaii

Academic institutionnorthamerica · us
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Research library32linked papers
Opportunities0open roles
Selected work

Representative Papers

Jailbreaking and Mitigation of Vulnerabilities in Large Language Models

Oct 20, 2024arXiv.org

Existing research on large language models (LLMs) lacks a unified taxonomy for prompt injection and jailbreaking attacks, and insufficiently evaluates defenses under dynamic, interactive scenarios. Method: We propose the first four-dimensional attack taxonomy—spanning prompt-level, model-level, multimodal, and multilingual pathways—and develop a robust alignment framework tailored to interactive settings, alongside a novel automated jailbreaking detection method. We further conduct systematic defense benchmarking, bias diagnosis of existing evaluation benchmarks, and multi-dimensional security measurement. Contribution/Results: Our analysis reveals critical failure modes of current defenses in dynamic interactions, identifies key research gaps—including ethical implications and data bias—and delivers the first comprehensive technical roadmap for LLM safety alignment.

7 citationsRead paper

Informative Path Planning to Explore and Map Unknown Planetary Surfaces with Gaussian Processes

Mar 05, 2022IEEE Aerospace Conference

This work addresses autonomous mapping of unknown planetary surface scalar fields (e.g., temperature, radiation intensity) under zero prior knowledge. Method: We propose an information-driven path planning framework based on Gaussian processes (GPs), integrating active learning, model-variance-guided adaptive sampling, and entropy-maximizing path selection to jointly optimize mapping accuracy and traversal distance. Contribution/Results: We provide the first systematic validation of the framework’s generalizability and convergence guarantees across noisy/noiseless, convex/non-convex terrains, and both simulated and real lunar surface scenarios. Experiments demonstrate that, compared to blind-scan strategies such as Boustrophedon coverage, our method significantly reduces modeling mean squared error (−38.2% on average), total traversal distance (−42.7% on average), and improves global minimum detection rate (+29.5%). These results confirm the efficacy and convergence potential of information-theoretic planning for zero-prior interplanetary exploration missions.

1 citationsRead paper

From Interpretation to Compilation: A Compilation-Based Execution Engine for Semantic Operator Systems

Aug 06, 2026

This work addresses the high latency and linearly scaling costs of existing semantic operator systems, which rely on interpreted execution with repeated large language model (LLM) invocations. The paper introduces SemBaker, the first framework to apply compilation principles to semantic operator execution: it uses a single LLM call to generate deterministic Python functions that efficiently perform filtering, mapping, and joining operations locally, thereby decoupling LLM invocation from data iteration. SemBaker features a plug-in architecture enabling integration with multiple systems and incorporates a cost-based optimizer that dynamically selects the optimal execution plan. Experimental results across three 200-query question-answering workloads demonstrate that SemBaker achieves average speedups of 4.8–6.3× and cost reductions of 5.4–10.7× while maintaining competitive result quality.

0 citationsRead paper

From AI Technical Debt to Agentic Technical Debt: A Systematic Mapping of Root Causes and Manifestations in Agentic AI Systems

Aug 02, 2026

This study addresses the limitations of existing AI technical debt models in capturing dynamically emergent behaviors and systemic risks inherent in autonomous, collaborative multi-agent systems. It introduces, for the first time, the concept of “Agentic Technical Debt,” proposing a theory-driven transformation framework that reconceptualizes traditional technical debt into novel liability forms suited to agent-based AI systems and establishes a corresponding taxonomy. Drawing on a systematic scoping review and the AI TRiSM framework, the work employs direct and contextual transformation strategies alongside behavioral expansion methods to identify emergent system-level risks—including memory inconsistency, orchestration fragility, cascading failures, and unsafe autonomous decision-making. These insights lay a theoretical foundation for the trustworthy, safe, and sustainable governance of agentic AI systems.

0 citationsRead paper
Recent publications

Latest Papers

From Interpretation to Compilation: A Compilation-Based Execution Engine for Semantic Operator Systems

Aug 06, 2026

This work addresses the high latency and linearly scaling costs of existing semantic operator systems, which rely on interpreted execution with repeated large language model (LLM) invocations. The paper introduces SemBaker, the first framework to apply compilation principles to semantic operator execution: it uses a single LLM call to generate deterministic Python functions that efficiently perform filtering, mapping, and joining operations locally, thereby decoupling LLM invocation from data iteration. SemBaker features a plug-in architecture enabling integration with multiple systems and incorporates a cost-based optimizer that dynamically selects the optimal execution plan. Experimental results across three 200-query question-answering workloads demonstrate that SemBaker achieves average speedups of 4.8–6.3× and cost reductions of 5.4–10.7× while maintaining competitive result quality.

0 citationsRead paper

From AI Technical Debt to Agentic Technical Debt: A Systematic Mapping of Root Causes and Manifestations in Agentic AI Systems

Aug 02, 2026

This study addresses the limitations of existing AI technical debt models in capturing dynamically emergent behaviors and systemic risks inherent in autonomous, collaborative multi-agent systems. It introduces, for the first time, the concept of “Agentic Technical Debt,” proposing a theory-driven transformation framework that reconceptualizes traditional technical debt into novel liability forms suited to agent-based AI systems and establishes a corresponding taxonomy. Drawing on a systematic scoping review and the AI TRiSM framework, the work employs direct and contextual transformation strategies alongside behavioral expansion methods to identify emergent system-level risks—including memory inconsistency, orchestration fragility, cascading failures, and unsafe autonomous decision-making. These insights lay a theoretical foundation for the trustworthy, safe, and sustainable governance of agentic AI systems.

0 citationsRead paper

On AI Safety and Security Technical Debt in Engineering AI-Enabled Systems

Jul 25, 2026

This study addresses the critical yet often overlooked issue of AI safety-related technical debt, which arises from vulnerabilities in data, models, and system architectures within high-stakes AI applications and can severely compromise system trustworthiness. For the first time, the paper explicitly frames AI safety through the lens of technical debt, leveraging the AI TRiSM principles to conduct a systematic literature review that identifies 31 distinct types of AI safety technical debt. It proposes a unified AITD-MAP framework organized around seven root-cause categories, links these debts to 18 key trustworthy AI concerns, and offers 34 actionable mitigation guidelines. This framework enables visualization, root-cause tracing, and lifecycle-wide governance of AI safety debt, substantially enhancing its manageability in AI engineering practice.

0 citationsRead paper

From Interpretation to Compilation: Compilation-Based Execution of Semantic Operators [Vision]

Jul 14, 2026

This work addresses the high latency, cost, and limited scalability of existing semantic operator systems that rely on interpreted execution with frequent large language model (LLM) invocations. The authors propose a compiler-based approach to semantic operator execution, treating the LLM as a semantic compiler that, during a one-time compilation phase, translates its outputs into deterministic, executable code—thereby eliminating the need for repeated LLM calls at runtime. By integrating techniques from database query optimization, program synthesis, and LLM-driven data processing, the method substantially reduces both execution time and the number of LLM invocations while preserving high output quality. The approach has been successfully integrated into an existing system, demonstrating its practical viability.

0 citationsRead paper