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The conversion of natural language queries into SQL queries, known as Text-to-SQL, is a critical yet challenging task. This paper introduces EPI-SQL, a novel methodological framework leveraging Large Language Models (LLMs) to enhance the…

Computation and Language · Computer Science 2024-04-24 Xiping Liu , Zhao Tan

We investigate parameter-efficient fine-tuning (PEFT) methods that can provide good accuracy under limited computational and memory budgets in the context of large language models (LLMs). We present a new PEFT method called Robust…

Computation and Language · Computer Science 2024-06-04 Mahdi Nikdan , Soroush Tabesh , Elvir Crnčević , Dan Alistarh

Recent advancements in Text-to-SQL, driven by large language models, are democratizing data access. Despite these advancements, enterprise deployments remain challenging due to the need to capture business-specific knowledge, handle complex…

Artificial Intelligence · Computer Science 2025-03-28 Karime Maamari , Connor Landy , Amine Mhedhbi

Text-to-image generation requires large amount of training data to synthesizing high-quality images. For augmenting training data, previous methods rely on data interpolations like cropping, flipping, and mixing up, which fail to introduce…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Senmao Ye , Fei Liu

Data-to-text (D2T) generation aims to generate human-readable text from semi-structured data, such as tables and graphs. The recent success of D2T is largely attributed to advancements in LLMs. Despite the success of LLMs, no research has…

Computation and Language · Computer Science 2024-07-22 Joy Mahapatra , Utpal Garain

Retrieval-Augmented Generation (RAG) has emerged as a powerful approach to mitigate large language model (LLM) hallucinations by incorporating external knowledge retrieval. However, existing RAG frameworks often apply retrieval…

Information Retrieval · Computer Science 2025-07-29 Jinyan Su , Jennifer Healey , Preslav Nakov , Claire Cardie

With the rapid evolution of large language models, retrieval enhanced generation technology has been widely used due to its ability to integrate external knowledge to improve output accuracy. However, the performance of the system is highly…

Machine Learning · Computer Science 2025-11-26 Ruoxin Zhang , Zhizhao Wen , Chao Wang , Chenchen Tang , Puyang Xu , Yifan Jiang

The capability gap between open-source and closed-source large language models (LLMs) remains a challenge in text-to-SQL tasks. In this paper, we introduce a synthetic data approach that combines data produced by larger, more powerful…

Computation and Language · Computer Science 2024-08-07 Jiaxi Yang , Binyuan Hui , Min Yang , Jian Yang , Junyang Lin , Chang Zhou

Direct Preference Optimization (DPO) has proven effective in complex reasoning tasks like math word problems and code generation. However, when applied to Text-to-SQL datasets, it often fails to improve performance and can even degrade it.…

Computation and Language · Computer Science 2025-02-18 Hanbing Liu , Haoyang Li , Xiaokang Zhang , Ruotong Chen , Haiyong Xu , Tian Tian , Qi Qi , Jing Zhang

Continually updating model-based indexes in generative retrieval with new documents remains challenging, as full retraining is computationally expensive and impractical under resource constraints. We propose MixLoRA-DSI, a novel framework…

Information Retrieval · Computer Science 2025-07-15 Tuan-Luc Huynh , Thuy-Trang Vu , Weiqing Wang , Trung Le , Dragan Gašević , Yuan-Fang Li , Thanh-Toan Do

NoSQL databases have become increasingly popular due to their outstanding performance in handling large-scale, unstructured, and semi-structured data, highlighting the need for user-friendly interfaces to bridge the gap between…

Databases · Computer Science 2025-02-19 Jinwei Lu , Yuanfeng Song , Zhiqian Qin , Haodi Zhang , Chen Zhang , Raymond Chi-Wing Wong

Language Models (LMs) memorize a vast amount of factual knowledge, exhibiting strong performance across diverse tasks and domains. However, it has been observed that the performance diminishes when dealing with less-popular or low-frequency…

Computation and Language · Computer Science 2024-12-03 Heydar Soudani , Evangelos Kanoulas , Faegheh Hasibi

Recent studies show that large language models (LLMs) struggle with technical standards in telecommunications. We propose a fine-tuned retrieval-augmented generation (RAG) system based on the Phi-2 small language model (SLM) to serve as an…

Computation and Language · Computer Science 2025-01-17 Omar Erak , Nouf Alabbasi , Omar Alhussein , Ismail Lotfi , Amr Hussein , Sami Muhaidat , Merouane Debbah

Reinforcement learning (RL) has been widely adopted to enhance the performance of large language models (LLMs) on Text-to-SQL tasks. However, existing methods often rely on execution-based or LLM-based Bradley-Terry reward models. The…

Machine Learning · Computer Science 2025-10-06 Han Weng , Puzhen Wu , Longjie Cui , Yi Zhan , Boyi Liu , Yuanfeng Song , Dun Zeng , Yingxiang Yang , Qianru Zhang , Dong Huang , Xiaoming Yin , Yang Sun , Xing Chen

Text-to-SQL conversion is a critical innovation, simplifying the transition from complex SQL to intuitive natural language queries, especially significant given SQL's prevalence in the job market across various roles. The rise of Large…

Computation and Language · Computer Science 2024-07-23 Tingkai Zhang , Chaoyu Chen , Cong Liao , Jun Wang , Xudong Zhao , Hang Yu , Jianchao Wang , Jianguo Li , Wenhui Shi

Natural Language to SQL (NL2SQL) provides a new model-centric paradigm that simplifies database access for non-technical users by converting natural language queries into SQL commands. Recent advancements, particularly those integrating…

Artificial Intelligence · Computer Science 2026-01-14 Jian Chen , Zhenyan Chen , Xuming Hu , Peilin Zhou , Yining Hua , Han Fang , Cissy Hing Yee Choy , Xinmei Ke , Jingfeng Luo , Zixuan Yuan

Relation extraction (RE) tasks show promising performance in extracting relations from two entities mentioned in sentences, given sufficient annotations available during training. Such annotations would be labor-intensive to obtain in…

Computation and Language · Computer Science 2023-06-16 Xuming Hu , Aiwei Liu , Zeqi Tan , Xin Zhang , Chenwei Zhang , Irwin King , Philip S. Yu

The advancement of Text-to-SQL systems is currently hindered by the scarcity of high-quality training data and the limited reasoning capabilities of models in complex scenarios. In this paper, we propose a holistic framework that addresses…

Databases · Computer Science 2025-12-30 Cehua Yang , Dongyu Xiao , Junming Lin , Yuyang Song , Hanxu Yan , Shawn Guo , Wei Zhang , Jian Yang , Mingjie Tang , Bryan Dai

Electronic health records (EHR) and claims data are rich sources of real-world data that reflect patient health status and healthcare utilization. Querying these databases to answer epidemiological questions is challenging due to the…

Computation and Language · Computer Science 2025-01-08 Angelo Ziletti , Leonardo D'Ambrosi

In modern industry systems like multi-turn chat agents, Text-to-SQL technology bridges natural language (NL) questions and database (DB) querying. The conversion of tabular DB results into NL representations (NLRs) enables the chat-based…

Computation and Language · Computer Science 2025-10-29 Jyotika Singh , Weiyi Sun , Amit Agarwal , Viji Krishnamurthy , Yassine Benajiba , Sujith Ravi , Dan Roth