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Research area 02

Auditable AI Agents

LLM agents · RAG · reliability · security

Making LLM agents and retrieval pipelines accountable: auditing their traces, defending their memories and retrieval corpora, and deciding which of their outputs have earned the right to be trusted.

Publications (14)

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  • A Selection-Aware Audit of Learned Stopping in Short-Horizon Iterative Retrieval

    Xuan-Bach Le, Phat T. Tran-Truong, Son Ha Xuan, Duy Nguyen

    WSDM 2027 (Main Conference; acceptance rate: 15.8%), Hong Kong · February 2027

    CORE ATo appear
  • EvidenceGraph: Measuring and Controlling Repeated Evidence in Retrieval-Augmented Verification

    Xuan-Bach Le, Phat T. Tran-Truong, Son Ha Xuan, Duy Nguyen

    WSDM 2027 (Main Conference; acceptance rate: 15.8%), Hong Kong · February 2027

    CORE ATo appear
  • RelationalRAG-Tables: A Learned Join Verifier for QA over Tables and Knowledge Graphs

    Xuan-Bach Le, Phat T. Tran-Truong, Son Ha Xuan

    ACML 2026 (Journal Track) — Machine Learning journal (Springer, Scimago Q1, Impact Factor 4.9), Melbourne, Australia · December 2026

    Q1To appear
    PaperSupplementArtifact
  • MDP-Guided Reinforcement Learning for Cost-Aware LLM-Based Test Generation

    Phung Trung Nguyen Nguyen, Minh Hieu Le, Duc Thuan Mai, Ngoc Khanh Tran Nguyen, Xuan-Bach Le

    CSoNet 2026, Ho Chi Minh City, Vietnam · November 2026

    To appear
    PaperArtifact
  • Deon: Runtime Guards for Policy-Safe Agentic Service Composition under Attack

    Xuan-Bach Le, Phat T. Tran-Truong, Duy Nguyen, Ngoc Khanh Tran Nguyen

    ICSOC 2026 (Main Track, CORE Rank A, Acceptance Rate: 64/240, 27%), Lodz, Poland · December 2026

    CORE ATo appear
    PaperArtifact
  • A Failure-Mode Taxonomy for LLM-Agent Services: An Empirical Mining Study

    Phat T. Tran-Truong, Xuan-Bach Le, Xuan Son Ha

    ICSOC 2026 (Main Track, CORE Rank A, Acceptance Rate: 64/240, 27%), Lodz, Poland · December 2026

    CORE ATo appear
    PaperArtifact
  • When Audit Quality Fails to Predict Downstream Utility: Synthetic-Data Selection for Low-Resource Classification

    Xuan-Bach Le, Phat T. Tran-Truong, Son Ha Xuan

    EMNLP 2026 (Findings Track, CORE Rank A*), Budapest, Hungary · October 2026

    CORE A*To appear
    PaperCodePoster
  • LTM-RAG: Longitudinal Trust Mining for Poison-Resilient Retrieval-Augmented Generation

    Thi-Hong-Cuc Le, Phuong Huu Vu Tran, Thuan Mai Duc, Xuan-Bach Le

    ICDM 2026 (Research Track, CORE Rank A*, Acceptance Rate: 392/1966, 20%), Shenyang, China · November 2026

    CORE A*To appear
    PaperArtifact
  • GraphMemShield: Auditing Cross-Session Leakage in Graph Memories

    Phat T. Tran-Truong, Xuan-Bach Le, Son Ha Xuan

    CIKM 2026 (Full Research Track, CORE Rank A, Acceptance Rate: 597/2216, 27%), Rome, Italy · November 2026

    CORE ATo appear
    PaperArtifact
  • GraphLedger: Repository-Level Vulnerability Detection via Graph-Based Compression and Assumption Validation

    Thi-Hong-Cuc Le, Hoang-Quoc-Bao Hua, Xuan-Bach Le

    ASE 2026 (Research Track, CORE Rank A*, Acceptance Rate: 115/1236), Munich, Germany · November 2026

    CORE A*To appear
    PaperSupplementArtifactSlidesPosterDOI
  • TraceToChain: Auditing LLM-Agent Reliability with Absorbing Markov Chains

    Phat Tuan Tran-Truong, Xuan-Bach Le

    ISSRE 2026 (Research Track, CORE Rank A), Limassol, Cyprus · October 2026

    CORE ATo appear
    PaperCode
  • Emerging Trends and Challenges Toward LLM Agents in Static Analysis

    Hoang-Quoc-Bao Hua, Xuan-Bach Le

    IEA/AIE 2026, Kuala Lumpur, Malaysia · July 2026

    🏆 Nominated for Best Paper Award
    PaperSlidesDOI
  • From Black-Box to Glass-Box: Explainable AI for Applied Intelligent Software Systems Across the Software Development Life Cycle

    Thi-Hong-Cuc Le, Xuan-Bach Le

    IEA/AIE 2026, Kuala Lumpur, Malaysia · July 2026

    🏆 Best Paper Award
    PaperSlidesDOI
  • SBV-LawGraph: A Hybrid RAG Approach Integrating Knowledge Graph for the State Bank of Vietnam Legal Documents

    Khoa Phan, Xuan-Bach Le, Tho Quan

    ACIIDS 2026 (Oral), Kaohsiung, Taiwan · April 2026

    PaperSlidesDOI

Code & artifacts

  • lexuanbach/CoSDA
    EMNLP 2026
  • lexuanbach/TraceToChain
    ISSRE 2026

Other areas

  • Verified AI
  • Safe Autonomous Systems
  • Quantum Reasoning
  • Applied & Collaborative

RAISE Lab — Reasoning in Artificial Intelligence and Software Engineering

Faculty of Computer Science and Engineering, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University Ho Chi Minh City.

Ho Chi Minh City University of Technology, Vietnam National University Ho Chi Minh City, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
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Research

  • Verified AI
  • Auditable AI Agents
  • Safe Autonomous Systems
  • Quantum Reasoning
  • Applied & Collaborative

Contact

  • lexuanbach@hcmut.edu.vn
  • Join the lab
  • Lab head's homepage
  • GitHub
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