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With the advancement of large language models (LLMs), diverse time series analysis tasks are reformulated as time series question answering (TSQA) through a unified natural language interface. However, existing LLM-based approaches largely…

Computation and Language · Computer Science 2025-12-30 Chen Su , Yuanhe Tian , Yan Song

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

Academic researchers need efficient and reliable methods for collecting high-quality information from trusted sources, but modern tools for AI-assisted research still suffer from the tendency of Large Language Models (LLMs) to produce…

Computation and Language · Computer Science 2026-05-21 Gábor Recski , Szilveszter Tóth , Nadia Verdha , István Boros , Ádám Kovács

In today's fast-paced industry, professionals face the challenge of summarizing a large number of documents and extracting vital information from them on a daily basis. These metrics are frequently hidden away in tables and/or their nested…

Computation and Language · Computer Science 2024-03-29 Che Guan , Mengyu Huang , Peng Zhang

Large Language Models excel in generative tasks but exhibit inefficiencies in structured text selection, particularly in extractive question answering. This challenge is magnified in resource-constrained environments, where deploying…

Computation and Language · Computer Science 2026-05-29 Yannis Montreuil , Shu Heng Yeo , Axel Carlier , Lai Xing Ng , Wei Tsang Ooi

The current state-of-the-art generative models for open-domain question answering (ODQA) have focused on generating direct answers from unstructured textual information. However, a large amount of world's knowledge is stored in structured…

Computation and Language · Computer Science 2021-12-09 Alexander Hanbo Li , Patrick Ng , Peng Xu , Henghui Zhu , Zhiguo Wang , Bing Xiang

While Large Language Models (LLMs) have demonstrated commendable performance across a myriad of domains and tasks, existing LLMs still exhibit a palpable deficit in handling multimodal functionalities, especially for the Spoken Question…

Computation and Language · Computer Science 2024-04-19 Zihan Zhao , Yiyang Jiang , Heyang Liu , Yanfeng Wang , Yu Wang

Open-domain complex Question Answering (QA) is a difficult task with challenges in evidence retrieval and reasoning. The complexity of such questions could stem from questions being compositional, hybrid evidence, or ambiguity in questions.…

Computation and Language · Computer Science 2024-06-26 Venktesh V. Deepali Prabhu , Avishek Anand

Large language models (LLMs) enhanced with retrieval augmentation has shown great performance in many applications. However, the computational demands for these models pose a challenge when applying them to real-time tasks, such as…

Computation and Language · Computer Science 2024-10-15 Menglin Xia , Xuchao Zhang , Camille Couturier , Guoqing Zheng , Saravan Rajmohan , Victor Ruhle

Automatic SQL generation has been an active research area, aiming at streamlining the access to databases by writing natural language with the given intent instead of writing SQL. Current SOTA methods for semantic parsing depend on LLMs to…

Machine Learning · Computer Science 2022-09-22 Samuel Arcadinho , David Aparício , Hugo Veiga , António Alegria

Answering multi-hop questions over hybrid factual knowledge from the given text and table (TextTableQA) is a challenging task. Existing models mainly adopt a retriever-reader framework, which have several deficiencies, such as noisy…

Computation and Language · Computer Science 2024-06-26 Fangyu Lei , Xiang Li , Yifan Wei , Shizhu He , Yiming Huang , Jun Zhao , Kang Liu

Tabular data is a fundamental component of real-world information systems, yet most research in table understanding remains confined to English, leaving multilingual comprehension significantly underexplored. Existing multilingual table…

We present an automatic large language model (LLM) conversion approach that produces uncertainty-aware LLMs capable of estimating uncertainty with every prediction. Our approach is model- and data-agnostic, is computationally-efficient, and…

Extractive question answering (QA) systems can enable physicians and researchers to query medical records, a foundational capability for designing clinical studies and understanding patient medical history. However, building these systems…

Computation and Language · Computer Science 2023-12-07 Joel Stremmel , Ardavan Saeedi , Hamid Hassanzadeh , Sanjit Batra , Jeffrey Hertzberg , Jaime Murillo , Eran Halperin

Multilingual pre-trained Large Language Models (LLMs) are incredibly effective at Question Answering (QA), a core task in Natural Language Understanding, achieving high accuracies on several multilingual benchmarks. However, little is known…

Computation and Language · Computer Science 2024-04-16 Yahan Yang , Soham Dan , Dan Roth , Insup Lee

Large language models (LLMs) have been shown to be effective on tabular prediction tasks in the low-data regime, leveraging their internal knowledge and ability to learn from instructions and examples. However, LLMs can fail to generate…

Current approaches to data discovery match keywords between metadata and queries. This matching requires researchers to know the exact wording that other researchers previously used, creating a challenging process that could lead to missing…

Human-Computer Interaction · Computer Science 2025-10-03 Maura E Halstead , Mark A. Green , Caroline Jay , Richard Kingston , David Topping , Alexander Singleton

Table-based question answering (TableQA) is an important task in natural language processing, which requires comprehending tables and employing various reasoning ways to answer the questions. This paper introduces TableQAKit, the first…

Computation and Language · Computer Science 2023-10-24 Fangyu Lei , Tongxu Luo , Pengqi Yang , Weihao Liu , Hanwen Liu , Jiahe Lei , Yiming Huang , Yifan Wei , Shizhu He , Jun Zhao , Kang Liu

Large Language Models (LLMs) have demonstrated impressive performance in various NLP tasks, but they still suffer from challenges such as hallucination and weak numerical reasoning. To overcome these challenges, external tools can be used…

Computation and Language · Computer Science 2023-06-26 Yuchen Zhuang , Yue Yu , Kuan Wang , Haotian Sun , Chao Zhang

Retrieval-Augmented Generation (RAG) has demonstrated considerable effectiveness in open-domain question answering. However, when applied to heterogeneous documents, comprising both textual and tabular components, existing RAG approaches…

Computation and Language · Computer Science 2025-10-01 Xiaohan Yu , Pu Jian , Chong Chen