Publications

J. Hong, G. Mackellar, and S. Ghane. SAMBA: Toward an EEG Foundation Model via Differential Mamba and Coordinate-Driven Spatial Embedding. NeurIPS 2026, NeurReps Proceedings Track. Workshop

J. Hong, P. Rao, W. Wang, and L. Najafizadeh. ChatBCI-Assist: An Intent-Based P300 Speller with a Locally-Deployed LLM and Adaptive Stopping Strategy Enabling Record Online Spelling Performance. IEEE Transactions on Biomedical Engineering (TBME), 2026. Journal IEEE

J. Hong and L. Najafizadeh. Improving Spelling Performance of LLM-based P300 Speller BCIs using Circular Nonadjacent Flashing and Cross-Validated Calibration. IEEE EMBC, 2026. Conference

P. Rao, J. Hong, W. Wang, and L. Najafizadeh. Llama-4-ALS: A Locally Deployable LLM, Tuned with LoRA and Dynamic Hierarchical Data Augmentation, for Speller-Based AAC. IEEE EMBC, 2026. Conference

J. Hong, W. Qian, Y. Chen, and Y. Zhang. A Geometric Approach to k-means. IEEE Transactions on Knowledge and Data Engineering (TKDE), 38, 1442–1453, 2026. Journal arXiv IEEE

A. Subramanian, S. Mai, J. Hong, and L. Najafizadeh. Neural Dynamics of Time Perception Under Acute Pain: An Auditory Temporal Bisection Study. IEEE ISBI, 2026. Conference

J. Hong, W. Wang, and L. Najafizadeh. ChatBCI: A P300 Speller BCI with Context-Driven Word Prediction Leveraging Large Language Models, from Concept to Evaluation. Scientific Reports (Nature Portfolio), 16, 6379, 2026. Journal arXiv Nature

J. Hong, G. Mackellar, and S. Ghane. SpellerSSL: Self-Supervised Learning with P300 Aggregation for Speller BCIs. NeurIPS 2025, Data on the Brain & Mind Workshop. Workshop arXiv

J. Hong, G. Mackellar, and S. Ghane. An Efficient Self-Supervised Framework for Long-Sequence EEG Modeling. IEEE ICDM 2025, AI for Time Series Workshop. Workshop arXiv

J. Hong and L. Najafizadeh. Enhancing Typing Speed in LLM-based P300 Speller BCIs Using a New Data-Driven Dynamic Stopping Strategy. IEEE EMBS NER, 2025. Conference

S. Mai, J. Hong, T. Shors, and L. Najafizadeh. Longest Sustained Cortical Activity Duration in Temporal Bisection Task Aligns with Geometric Mean for Log-Spaced Probes. IEEE EMBS NER, 2025. Conference

J. Hong, P. Rao, W. Wang, S. Chen, and L. Najafizadeh. ChatBCI4ALS: A High-Performance, LLM-Driven Intent-Based BCI Communication System for Individuals with ALS. IEEE EMBC, 2025. Conference

J. Hong and L. Najafizadeh. TopoEEG: a TimeSformer-Based Topographic Image Representation Method for Single-Trial Early Detection of P300. IEEE ISBI, 2025. Conference

J. Hong, W. Wang, and L. Najafizadeh. ChatBCI: A Fast P300 Speller BCI Incorporating Generative AI-Based Word Prediction. IEEE Brain Discovery and Neurotechnology Workshop, 2024. Workshop Poster

J. Hong and L. Najafizadeh. P3T: A Transformer Model for Enhancing Character Recognition Rates in P300 Speller Systems. Asilomar ACSSC, 2024, pp. 514–518. Conference Poster

J. Hong, F. Shamsi, and L. Najafizadeh. A Deep Learning Framework Based on Dynamic Channel Selection for Early Classification of Left and Right Hand Motor Imagery Tasks. IEEE EMBC, 2022, Glasgow, Scotland, pp. 3550–3553. Conference IEEE Poster