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Research

Publications 38 papers and preprints

Peer-reviewed papers and preprints by the Parxyz team, spanning clinical AI, mental health, aging in place, and the explainable, contestable and edge AI our products are built on.

2026

  • Self-Evolving Human-Centered Framework for Explainable Depression Symptom Annotation
    HL Cao, V Pham, TTH Nguyen, PTL Nguyen, P Ho, V Whitford, H Cao
    IEEE International Conference on Omni-Layer Intelligent Systems (COINS)
    ScholarMental healthExplainable & contestable AIMulti-agent & LLMs
  • Anatomically-conditioned Latent Diffusion Model for Data-Efficient Few-Shot Cross-Domain 3D Glioma MRI Synthesis
    S Shaik, TTH Nguyen, H Cao
    39th Canadian Conference on Artificial Intelligence (Canadian AI)
    ScholarClinical AI
  • Geometry-anchored PET-aware Multimodal Pseudo-CT Synthesis for Whole-Body Attenuation Correction: the BIC-MAC Challenge
    XL Nguyen, HL Cao, TTH Nguyen, P Ho, PTL Nguyen, NTT To, H Cao
    Big Cross-Modal Attenuation Correction (BIC-MAC) Challenge at MICCAI
    ScholarClinical AI
  • Neuro-Symbolic Adaptive Collaboration of Arena-Based Argumentative LLMs for Contestable Legal Reasoning
    HL Cao, P Ho, TTH Nguyen, PTL Nguyen, DTL Nguyen, H Cao
    39th Canadian Conference on Artificial Intelligence (Canadian AI)
    ScholarExplainable & contestable AIMulti-agent & LLMs
  • Contestable Multi-Agent Debate with Arena-based Argumentative Computation for Multimedia Verification
    HTT Nguyen, KVT Nguyen, HL Cao, P Ho, V Pham, H Cao
    International Conference on Multimedia Retrieval (ICMR)
    ScholarExplainable & contestable AIMulti-agent & LLMs
  • Self-Evolving Multimedia Verification through Memory Consolidation of Contestation Experiences
    TTH Nguyen, VTK Nguyen, HL Cao, P Ho, TT Nguyen, V Pham, H Cao
    arXiv preprint arXiv:2609.27175
    ScholararXivMulti-agent & LLMs
  • Does Mixture-of-Experts Actually Help Inference on Consumer and Edge Hardware? An Empirical Study
    A Alfarizy, HTT Nguyen, R Richard, R Razavi-Far, H Cao
    International Conference on Frontiers of Artificial Intelligence, Ethics, and Multidisciplinary Applications (FAIEMA)
    ScholarEdge & federated AIMulti-agent & LLMs
  • Consensus-based Agentic Large Language Model Framework for Harmonized Tariff Schedule Code Classification
    TTH Nguyen, KVQ Nguyen, HL Cao, T Duong, P Ho, V Pham, L Nguyen, et al.
    3rd International Conference of Resilience by Technology and Design (RTD)
    ScholarMulti-agent & LLMs
  • Multi-Dimensional Model Integrity and Responsibility Assessment Index and Scoring Framework
    PTL Nguyen, TH Do, TTH Nguyen, H Cao
    39th Canadian Conference on Artificial Intelligence (Canadian AI)
    ScholarExplainable & contestable AI
  • SEval-NAS: A Search-Agnostic Evaluation for Neural Architecture Search
    AN Mih, J Wang, TTH Nguyen, H Cao
    41st ACM/SIGAPP Symposium on Applied Computing (SAC)
    ScholarEdge & federated AI
  • Variational Quantum Rainbow Deep Q-Network for Optimizing Resource Allocation Problem
    TTH Nguyen, TT Nguyen, H Cao
    41st ACM/SIGAPP Symposium on Applied Computing (SAC)
    Scholar
  • Toward a Unified Geospatial Intelligence Framework Utilizing Edge Computing, IoT, and Multimodal Generative AI for Climate Risk Mitigation and Adaptive Evacuation Planning
    TTH Nguyen, H Cao
    The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
    ScholarEdge & federated AIMulti-agent & LLMs

2025

  • Motion2Meaning: A Clinician-Centered Framework for Contestable LLM in Parkinson's Disease Gait Interpretation
    LPT Nguyen, HT Do, HTT Nguyen, H Cao
    9th International Symposium on Chatbots and Human-Centred AI (CONVERSATIONS)
    ScholarAging in placeClinical AIExplainable & contestable AI
  • XEdgeAI: A Human-Centered Industrial Inspection Framework with Data-Centric Explainable Edge AI Approach
    HTT Nguyen, LPT Nguyen, H Cao
    Information Fusion, vol. 116, 102782
    ScholarExplainable & contestable AIEdge & federated AI
  • ODExAI: A Comprehensive Object Detection Explainable AI Evaluation
    LPT Nguyen, HTT Nguyen, H Cao
    48th German Conference on Artificial Intelligence (KI)
    ScholarExplainable & contestable AI
  • XGD: Explainable AI-Guided Knowledge Distillation with Feature Refinement for Semantic Segmentation
    H Nguyen, B Truong, K Nguyen, K Nguyen, L Nguyen, F Palma, H Cao
    38th Canadian Conference on Artificial Intelligence (Canadian AI)
    ScholarExplainable & contestable AIEdge & federated AI
  • Multimedia Verification Through Multi-Agent Deep Research Multimodal Large Language Models
    HH Le, VST Nguyen, TLC Dang, VTK Nguyen, TTH Nguyen, H Cao
    ACM International Conference on Multimedia (ACM MM), pp. 14034-14040
    ScholarMulti-agent & LLMs
  • SimInterview: Transforming Business Education through Large Language Model-Based Simulated Multilingual Interview Training System
    TTH Nguyen, TDQ Nguyen, HL Cao, TCT Tran, TCM Truong, H Cao
    International Conference on Economics, Finance, and Management (ICEFM)
    ScholarMulti-agent & LLMs
  • Graffiti Detection Efficient Design with Comprehensive Evaluation
    MJ Wang, H Nguyen, R Richard, H Cao
    UNB Computer Science Research Exposition
    ScholarEdge & federated AI

2024

  • Deciphering the Heartbeat: Towards an Explainable AI Approach using ECG Signals for Exploring Aging-in-Place Intelligence
    H Nguyen, R Richard, M Wachowicz, H Cao
    UNB Computer Science Research Exposition
    ScholarAging in placeExplainable & contestable AI
  • LangXAI: Integrating Large Vision Models for Generating Textual Explanations to Enhance Explainability in Visual Perception Tasks
    HTT Nguyen, T Clement, PTL Nguyen, N Kemmerzell, VB Truong, et al.
    International Joint Conference on Artificial Intelligence (IJCAI)
    ScholarExplainable & contestable AIMulti-agent & LLMs
  • Towards Better Explanations for Object Detection
    VB Truong, HTT Nguyen, VTK Nguyen, QK Nguyen, QH Cao
    Asian Conference on Machine Learning (ACML), pp. 1385-1400
    ScholarExplainable & contestable AI
  • Efficient and Concise Explanations for Object Detection with Gaussian-Class Activation Mapping Explainer
    QK Nguyen, TTH Nguyen, VTK Nguyen, VB Truong, T Phan, H Cao
    37th Canadian Conference on Artificial Intelligence (Canadian AI)
    ScholararXivExplainable & contestable AI
  • MACeIP: A Multimodal Ambient Context-Enriched Intelligence Platform in Smart Cities
    TTH Nguyen, PTL Nguyen, M Wachowicz, H Cao
    IEEE International Conference on Consumer Electronics-Asia (ICCE-Asia)
    ScholarEdge & federated AIMulti-agent & LLMs
  • XAI-Enhanced Semantic Segmentation Models for Visual Quality Inspection
    T Clement, TTH Nguyen, M Abdelaal, H Cao
    IEEE International Conference on Consumer Electronics (ICCE)
    ScholarExplainable & contestable AI
  • Enhancing the Fairness and Performance of Edge Cameras with Explainable AI
    TTH Nguyen, VTK Nguyen, QH Cao, VB Truong, QK Nguyen, H Cao
    IEEE International Conference on Consumer Electronics (ICCE)
    ScholarExplainable & contestable AIEdge & federated AI
  • Examining Monitoring System: Detecting Abnormal Behavior in Online Examinations
    DA Ngo, TD Nguyen, TLC Dang, HH Le, TB Ho, VTK Nguyen, et al.
    arXiv preprint arXiv:2402.12179
    ScholararXiv
  • Educational Technology and Responsible Automated Essay Scoring in the Generative AI Era
    H Thai, M Nguyen, HTT Nguyen, DTH Vo, BN Thanh, K Nguyen, S Ha, et al.
    Navigating the Circular Age of a Sustainable Digital Revolution, pp. 325-356 (book chapter)
    ScholarMulti-agent & LLMs
  • Temporal Point Processes for Business Process Monitoring
    TTH Nguyen, TCT Tran, TCM Truong
    Quy Nhon University Journal of Science
    Scholar

2023

  • Towards Trust of Explainable AI in Thyroid Nodule Diagnosis
    HTT Nguyen, VB Truong, VTK Nguyen, QH Cao, QK Nguyen
    Health Intelligence Workshop (W3PHIAI) at AAAI, pp. 11-26
    ScholarClinical AIExplainable & contestable AI
  • Coping with Data Distribution Shifts: XAI-Based Adaptive Learning with SHAP Clustering for Energy Consumption Prediction
    T Clement, HTT Nguyen, N Kemmerzell, M Abdelaal, D Stjelja
    Australasian Joint Conference on Artificial Intelligence (AJCAI), pp. 147-159
    ScholararXivExplainable & contestable AI
  • Understanding Minerals Better: Advancing Mineral Classification Framework through Explainable AI and Large Language Model Integration
    NTT Hung, TTC Mai
    Quy Nhon University Journal of Science
    ScholarExplainable & contestable AI

2022

  • SeCAM: Tightly Accelerate the Image Explanation via Region-Based Segmentation
    PX Nguyen, HQ Cao, KVT Nguyen, H Nguyen, T Yairi
    IEICE Transactions on Information and Systems, 105(8), pp. 1401-1417
    ScholarExplainable & contestable AI
  • Construction of Molecular Structures using K-Nearest Neighbor with K-Dimension Tree Algorithm
    TTC Mai, NTT Hung
    Quy Nhon University Journal of Science
    Scholar

2021

  • Evaluation of Explainable Artificial Intelligence: SHAP, LIME, and CAM
    HTT Nguyen, HQ Cao, KVT Nguyen, NDK Pham
    Proceedings of the FPT AI Conference (FAIC), pp. 1-6
    ScholarExplainable & contestable AI
  • A Novel Explainable Artificial Intelligence Model in Image Classification Problem
    QH Cao, TTH Nguyen, VTK Nguyen, XP Nguyen
    Proceedings of the FPT AI Conference (FAIC)
    ScholarExplainable & contestable AI
  • Can Reinforcement Learning Solve a Human Allocation Problem?
    P Nguyen, M Hiroya, T Hunabad, D Zhilenkov, H Nguyen, K Nguyen
    International Conference on Automated Planning and Scheduling (ICAPS), Workshop
    Scholar

2020

  • Analyzing and Visualizing Chemical Molecular Properties using K-Dimensional Tree Algorithm
    NTT Hung
    B.Sc. thesis, Frankfurt University of Applied Sciences / Vietnamese-German University
    Scholar