5 papers
NitiBench+: A Temporal Thai Legal Question Answering Benchmark Across 17 Domains
Pawitsapak Akarajaradwong, Sarana Nutanong, Chompakorn Chaksangchaichot
Law changes over time. A court decides a case under the law in force on that day, and legal QA benchmarks grade answers against today's law. We checked 156,650 decisions of four Th…
ReplayFactor: Replay-Aware Dual-Attribute Learning for Practical Speech Deepfake Detection
Miao He, Jiayi Zhou, Yu Zheng +6
Advances in synthesis techniques have made deepfake speech increasingly realistic, amplifying voice security threats, including unauthorized voice cloning and impersonation. Althou…
A Two-Phase Stability Study of LLM Judges and Bar Council Examiners on Thai Bar-Exam Free-Form Essays
Pawitsapak Akarajaradwong, Wuttikrai Lertprasertphakorn, Chompakorn Chaksangchaichot +1
Free-form legal essay evaluation in NLP treats expert inter-rater stability as a single ceiling number, and treats LLM-judge agreement with that ceiling as evidence of judge stabil…
Can Group Relative Policy Optimization Improve Thai Legal Reasoning and Question Answering?
Pawitsapak Akarajaradwong, Chompakorn Chaksangchaichot, Pirat Pothavorn +3
The Retrieval-Augmented Generation (RAG) systems' performance on Thai legal question answering is still limited, especially for questions requiring extensive, complex legal reasoni…
NitiBench: A Comprehensive Study of LLM Framework Capabilities for Thai Legal Question Answering
Pawitsapak Akarajaradwong, Pirat Pothavorn, Chompakorn Chaksangchaichot +4
The application of large language models (LLMs) in the legal domain holds significant potential for information retrieval and question answering, yet Thai legal QA systems face cha…