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Related papers: Long-Tailed Question Answering in an Open World

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Large Language Models (LLMs) have shown significant progress in Open-domain question answering (ODQA), yet most evaluations focus on English and assume locale-invariant answers across languages. This assumption neglects the cultural and…

Computation and Language · Computer Science 2025-08-25 Keon-Woo Roh , Yeong-Joon Ju , Seong-Whan Lee

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

Long-tailed data distributions pose challenges for a variety of domains like e-commerce, finance, biomedical science, and cyber security, where the performance of machine learning models is often dominated by head categories while tail…

Machine Learning · Computer Science 2024-10-31 Haohui Wang , Weijie Guan , Jianpeng Chen , Zi Wang , Dawei Zhou

Recently, large language models (LLMs) have gained much attention for the emergence of human-comparable capabilities and huge potential. However, for open-domain implicit question-answering problems, LLMs may not be the ultimate solution…

Computation and Language · Computer Science 2026-03-10 Chang Liu , Xiaoguang Li , Lifeng Shang , Xin Jiang , Qun Liu , Edmund Y. Lam , Ngai Wong

Knowledge bases (KBs) have gradually become a valuable asset for many AI applications. While many current KBs are quite large, they are widely acknowledged as incomplete, especially lacking facts of long-tail entities, e.g., less famous…

Information Retrieval · Computer Science 2020-02-20 Ermei Cao , Difeng Wang , Jiacheng Huang , Wei Hu

Existing out-of-distribution (OOD) methods have shown great success on balanced datasets but become ineffective in long-tailed recognition (LTR) scenarios where 1) OOD samples are often wrongly classified into head classes and/or 2)…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Wenjun Miao , Guansong Pang , Tianqi Li , Xiao Bai , Jin Zheng

Search engines based on keyword retrieval can no longer adapt to the way of information acquisition in the era of intelligent Internet of Things due to the return of keyword related Internet pages. How to quickly, accurately and effectively…

Computation and Language · Computer Science 2022-01-03 Gaochen Wu , Bin Xu , Yuxin Qin , Yang Liu , Lingyu Liu , Ziwei Wang

Multi-Task Learning (MTL) is a framework, where multiple related tasks are learned jointly and benefit from a shared representation space, or parameter transfer. To provide sufficient learning support, modern MTL uses annotated data with…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Dimitrios Kollias , Viktoriia Sharmanska , Stefanos Zafeiriou

Deep models trained on long-tailed datasets exhibit unsatisfactory performance on tail classes. Existing methods usually modify the classification loss to increase the learning focus on tail classes, which unexpectedly sacrifice the…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Shaoyu Zhang , Chen Chen , Xiyuan Hu , Silong Peng

Generalization to novel compound tasks under distribution shift is important for deploying transformer-based language models (LMs). This work investigates Chain-of-Thought (CoT) reasoning as a means to enhance OOD generalization. Through…

Computation and Language · Computer Science 2026-03-31 Ru Wang , Wei Huang , Selena Song , Haoyu Zhang , Qian Niu , Yusuke Iwasawa , Yutaka Matsuo , Jiaxian Guo

Table Question Answering (TQA) is an important but under-explored task. Most of the existing QA datasets are in unstructured text format and only few of them use tables as the context. To the best of our knowledge, none of TQA datasets…

Computation and Language · Computer Science 2022-07-07 Man Luo , Sharad Saxena , Swaroop Mishra , Mihir Parmar , Chitta Baral

Current out-of-distribution (OOD) detection methods typically assume balanced in-distribution (ID) data, while most real-world data follow a long-tailed distribution. Previous approaches to long-tailed OOD detection often involve balancing…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Yina He , Lei Peng , Yongcun Zhang , Juanjuan Weng , Zhiming Luo , Shaozi Li

In this work, we address question answering (QA) over a hybrid of tabular and textual data that are very common content on the Web (e.g. SEC filings), where discrete reasoning capabilities are often required. Recently, large language models…

Computation and Language · Computer Science 2024-10-01 Fengbin Zhu , Ziyang Liu , Fuli Feng , Chao Wang , Moxin Li , Tat-Seng Chua

Tabular data is difficult to analyze and to search through, yielding for new tools and interfaces that would allow even non tech-savvy users to gain insights from open datasets without resorting to specialized data analysis tools or even…

Information Retrieval · Computer Science 2017-08-31 Svitlana Vakulenko , Vadim Savenkov

There is an inescapable long-tailed class-imbalance issue in many real-world classification problems. Current methods for addressing this problem only consider scenarios where all examples come from the same distribution. However, in many…

Machine Learning · Computer Science 2023-10-09 Xinyu Yang , Huaxiu Yao , Allan Zhou , Chelsea Finn

Recent advances in tabular question answering (QA) with large language models are constrained in their coverage and only answer questions over a single table. However, real-world queries are complex in nature, often over multiple tables in…

Computation and Language · Computer Science 2023-08-09 Vaishali Pal , Andrew Yates , Evangelos Kanoulas , Maarten de Rijke

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

Though Self-supervised learning (SSL) has been widely studied as a promising technique for representation learning, it doesn't generalize well on long-tailed datasets due to the majority classes dominating the feature space. Recent work…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Jianhong Bai , Zuozhu Liu , Hualiang Wang , Jin Hao , Yang Feng , Huanpeng Chu , Haoji Hu

Question answering over knowledge bases (KBQA) has become a popular approach to help users extract information from knowledge bases. Although several systems exist, choosing one suitable for a particular application scenario is difficult.…

Computation and Language · Computer Science 2022-11-16 Khiem Vinh Tran , Hao Phu Phan , Khang Nguyen Duc Quach , Ngan Luu-Thuy Nguyen , Jun Jo , Thanh Tam Nguyen

Recent advancements in large language models (LLMs) have exhibited promising performance in solving sequential decision-making problems. By imitating few-shot examples provided in the prompts (i.e., in-context learning), an LLM agent can…

Artificial Intelligence · Computer Science 2024-02-27 Yuchen Xiao , Yanchao Sun , Mengda Xu , Udari Madhushani , Jared Vann , Deepeka Garg , Sumitra Ganesh