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Recent work has uncovered promising ways to extract well-calibrated confidence estimates from language models (LMs), where the model's confidence score reflects how likely it is to be correct. However, while LMs may appear well-calibrated…

Computation and Language · Computer Science 2024-03-28 Xiang Lisa Li , Urvashi Khandelwal , Kelvin Guu

Large Language Models (LLMs) show promise for automated grading, but their outputs can be unreliable. Rather than improving grading accuracy directly, we address a complementary problem: \textit{predicting when an LLM grader is likely to be…

Computation and Language · Computer Science 2026-04-01 Robinson Ferrer , Damla Turgut , Zhongzhou Chen , Shashank Sonkar

Pre-trained language models (PLMs) may fail in giving reliable estimates of their predictive uncertainty. We take a close look into this problem, aiming to answer two questions: (1) Do PLMs learn to become calibrated in the training…

Computation and Language · Computer Science 2023-05-09 Yangyi Chen , Lifan Yuan , Ganqu Cui , Zhiyuan Liu , Heng Ji

As large language models (LLMs) are increasingly deployed in critical decision-making systems, the lack of reliable methods to measure their uncertainty presents a fundamental trustworthiness risk. We introduce a normalized confidence score…

Machine Learning · Computer Science 2026-03-10 Xie Xiaohu , Liu Xiaohu , Yao Benjamin

Large language models optimized with techniques like RLHF have achieved good alignment in being helpful and harmless. However, post-alignment, these language models often exhibit overconfidence, where the expressed confidence does not…

Computation and Language · Computer Science 2024-10-10 Mozhi Zhang , Mianqiu Huang , Rundong Shi , Linsen Guo , Chong Peng , Peng Yan , Yaqian Zhou , Xipeng Qiu

Despite the success of large language models (LLMs) in Text-to-SQL tasks, open-source LLMs encounter challenges in contextual understanding and response coherence. To tackle these issues, we present \ours, a systematic methodology tailored…

Computation and Language · Computer Science 2024-05-14 Xiaojun Chen , Tianle Wang , Tianhao Qiu , Jianbin Qin , Min Yang

This study investigates various approaches to using Large Language Models (LLMs) for Text-to-SQL program synthesis, focusing on the outcomes and insights derived. Employing the popular Text-to-SQL dataset, spider, the goal was to input a…

Artificial Intelligence · Computer Science 2024-01-24 Richard Roberson , Gowtham Kaki , Ashutosh Trivedi

In search settings, calibrating the scores during the ranking process to quantities such as click-through rates or relevance levels enhances a system's usefulness and trustworthiness for downstream users. While previous research has…

Information Retrieval · Computer Science 2024-08-28 Puxuan Yu , Daniel Cohen , Hemank Lamba , Joel Tetreault , Alex Jaimes

Large language models (LLMs) are increasingly deployed in decision-making tasks, where not only accuracy but also reliable confidence estimates are essential. Well-calibrated confidence enables downstream systems to decide when to trust a…

Machine Learning · Computer Science 2026-01-21 Duygu Nur Yaldiz , Evangelia Spiliopoulou , Zheng Qi , Siddharth Varia , Srikanth Doss , Nikolaos Pappas

Existing refinement methods in LLM-based Text-to-SQL systems exhibit limited effectiveness. They often introduce new errors during the self-correction process and fail to detect and correct semantic inaccuracies. To address these gaps, we…

Artificial Intelligence · Computer Science 2025-05-22 Jikai Chen , Leilei Gan , Ziyu Zhao , Zechuan Wang , Dong Wang , Chenyi Zhuang

Text-to-SQL bridges the gap between natural language and structured database language, thus allowing non-technical users to easily query databases. Traditional approaches model text-to-SQL as a direct translation task, where a given Natural…

Machine Learning · Computer Science 2025-08-12 Anurag Tripathi , Vaibhav Patle , Abhinav Jain , Ayush Pundir , Sairam Menon , Ajeet Kumar Singh , Dorien Herremans

Uncertainty estimation is a significant issue for current large language models (LLMs) that are generally poorly calibrated and over-confident, especially with reinforcement learning from human feedback (RLHF). Unlike humans, whose…

Computation and Language · Computer Science 2024-05-13 Ruixin Yang , Dheeraj Rajagopal , Shirley Anugrah Hayati , Bin Hu , Dongyeop Kang

In-Context Learning (ICL) allows Large Language Models (LLMs) to adapt to new tasks with just a few examples, but their predictions often suffer from systematic biases, leading to unstable performance in classification. While calibration…

Machine Learning · Statistics 2026-03-05 Korel Gundem , Juncheng Dong , Dennis Zhang , Vahid Tarokh , Zhengling Qi

Text-to-SQL is a subtask in semantic parsing that has seen rapid progress with the evolution of Large Language Models (LLMs). However, LLMs face challenges due to hallucination issues and a lack of domain-specific database knowledge(such as…

Computation and Language · Computer Science 2025-02-26 Xingyu Ma , Xin Tian , Lingxiang Wu , Xuepeng Wang , Xueming Tang , Jinqiao Wang

Semi-supervised learning (SSL) has demonstrated high performance in image classification tasks by effectively utilizing both labeled and unlabeled data. However, existing SSL methods often suffer from poor calibration, with models yielding…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Mehrab Mustafy Rahman , Jayanth Mohan , Tiberiu Sosea , Cornelia Caragea

The advent of large language models (LLMs) has dramatically advanced the state-of-the-art in numerous natural language generation tasks. For LLMs to be applied reliably, it is essential to have an accurate measure of their confidence.…

Computation and Language · Computer Science 2024-06-05 Zhen Lin , Shubhendu Trivedi , Jimeng Sun

Generating accurate SQL from users' natural language questions (text-to-SQL) remains a long-standing challenge due to the complexities involved in user question understanding, database schema comprehension, and SQL generation. Traditional…

Computation and Language · Computer Science 2025-11-25 Zijin Hong , Zheng Yuan , Qinggang Zhang , Hao Chen , Junnan Dong , Feiran Huang , Xiao Huang

Text-to-SQL models have significantly improved with the adoption of Large Language Models (LLMs), leading to their increasing use in real-world applications. Although many benchmarks exist for evaluating the performance of text-to-SQL…

Databases · Computer Science 2026-04-29 Sepideh Abedini , M. Tamer Özsu

Recent advancements in Text-to-SQL (Text2SQL) emphasize stimulating the large language models (LLM) on in-context learning, achieving significant results. Nevertheless, they face challenges when dealing with verbose database information and…

Computation and Language · Computer Science 2024-06-04 Zhishuai Li , Xiang Wang , Jingjing Zhao , Sun Yang , Guoqing Du , Xiaoru Hu , Bin Zhang , Yuxiao Ye , Ziyue Li , Rui Zhao , Hangyu Mao

Leading models for the text-to-SQL task heavily rely on proprietary Large Language Models (LLMs), posing concerns over data privacy. Closing the performance gap between small open-source models and large proprietary models is crucial to…

Computation and Language · Computer Science 2024-02-05 Mohammadreza Pourreza , Davood Rafiei