3 papers
cs.CL2026
Is Domain Adaptation Always Helpful? A Frozen-Backbone Study of Cross-Domain Sentiment Transfer
Phat Tran, Artin Lahni, Pranav Kulkarni +1
Sentiment analysis with frozen pre-trained language model (PLM) backbones has become a common paradigm, yet the practical benefit of explicit domain adaptation remains unclear, par…
cs.LG2026
Reward-Based Online LLM Routing via NeuralUCB
Ming-Hua Tsai, Phat Tran
This study investigates the use of NeuralUCB for cost-aware large language model (LLM) routing. Existing routing approaches can be broadly grouped into supervised routing methods a…
cs.CL2026
Low-Resource Heuristics for Bahnaric Optical Character Recognition Improvement
Phat Tran, Phuoc Pham, Hung Trinh +1
Bahnar, a minority language spoken across Vietnam, Cambodia, and Laos, faces significant preservation challenges due to limited research and data availability. This study addresses…