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

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Answer selection and knowledge base question answering (KBQA) are two important tasks of question answering (QA) systems. Existing methods solve these two tasks separately, which requires large number of repetitive work and neglects the…

Computation and Language · Computer Science 2018-12-07 Yang Deng , Yuexiang Xie , Yaliang Li , Min Yang , Nan Du , Wei Fan , Kai Lei , Ying Shen

Data privacy and class imbalance are the norm rather than the exception in many machine learning tasks. Recent attempts have been launched to, on one side, address the problem of learning from pervasive private data, and on the other side,…

Machine Learning · Computer Science 2022-07-01 Zihan Chen , Songshang Liu , Hualiang Wang , Howard H. Yang , Tony Q. S. Quek , Zuozhu Liu

In the last few years, open-domain question answering (ODQA) has advanced rapidly due to the development of deep learning techniques and the availability of large-scale QA datasets. However, the current datasets are essentially designed for…

Computation and Language · Computer Science 2022-02-23 Jiexin Wang , Adam Jatowt , Masatoshi Yoshikawa

Long-tailed distributions in class-imbalanced data present a fundamental challenge for deep learning models, which tend to be biased toward majority classes. While recent methods for long-tailed recognition have mitigated this issue, they…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Heegeon Yoon , Heeyoung Kim

How to estimate the uncertainty of a given model is a crucial problem. Current calibration techniques treat different classes equally and thus implicitly assume that the distribution of training data is balanced, but ignore the fact that…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Jiahao Chen , Bing Su

The Internet contains a wealth of knowledge -- from the birthdays of historical figures to tutorials on how to code -- all of which may be learned by language models. However, while certain pieces of information are ubiquitous on the web,…

Computation and Language · Computer Science 2023-07-28 Nikhil Kandpal , Haikang Deng , Adam Roberts , Eric Wallace , Colin Raffel

Real-world data often follows a long-tailed distribution, which makes the performance of existing classification algorithms degrade heavily. A key issue is that samples in tail categories fail to depict their intra-class diversity. Humans…

Computer Vision and Pattern Recognition · Computer Science 2022-02-14 Xiaohua Chen , Yucan Zhou , Dayan Wu , Wanqian Zhang , Yu Zhou , Bo Li , Weiping Wang

Knowledge-based Visual Question Answering (KVQA) requires both image and world knowledge to answer questions. Current methods first retrieve knowledge from the image and external knowledge base with the original complex question, then…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Wenbin An , Feng Tian , Jiahao Nie , Wenkai Shi , Haonan Lin , Yan Chen , QianYing Wang , Yaqiang Wu , Guang Dai , Ping Chen

Equipped with Chain-of-Thought (CoT), Large language models (LLMs) have shown impressive reasoning ability in various downstream tasks. Even so, suffering from hallucinations and the inability to access external knowledge, LLMs often come…

Computation and Language · Computer Science 2023-10-31 Keheng Wang , Feiyu Duan , Sirui Wang , Peiguang Li , Yunsen Xian , Chuantao Yin , Wenge Rong , Zhang Xiong

To effectively use large language models (LLMs) for real-world queries, it is imperative that they generalize to the long-tail distribution, i.e. rare examples where models exhibit low confidence. In this work, we take the first step…

Computation and Language · Computer Science 2024-10-07 Huihan Li , Yuting Ning , Zeyi Liao , Siyuan Wang , Xiang Lorraine Li , Ximing Lu , Wenting Zhao , Faeze Brahman , Yejin Choi , Xiang Ren

Large Language Models (LLMs) are increasingly used to answer everyday questions, yet their performance on culturally grounded and dialectal content remains uneven across languages. We propose a comprehensive method that (i) translates…

Computation and Language · Computer Science 2026-04-20 Hunzalah Hassan Bhatti , Firoj Alam

Latent Dirichlet allocation (LDA) is a popular topic modeling technique in academia but less so in industry, especially in large-scale applications involving search engine and online advertising systems. A main underlying reason is that the…

Information Retrieval · Computer Science 2015-12-08 Yi Wang , Xuemin Zhao , Zhenlong Sun , Hao Yan , Lifeng Wang , Zhihui Jin , Liubin Wang , Yang Gao , Ching Law , Jia Zeng

Charts are very popular to analyze data and convey important insights. People often analyze visualizations to answer open-ended questions that require explanatory answers. Answering such questions are often difficult and time-consuming as…

Machine Learning · Computer Science 2022-10-14 Shankar Kantharaj , Xuan Long Do , Rixie Tiffany Ko Leong , Jia Qing Tan , Enamul Hoque , Shafiq Joty

In real-world scenarios, where knowledge distributions exhibit long-tail. Humans manage to master knowledge uniformly across imbalanced distributions, a feat attributed to their diligent practices of reviewing, summarizing, and correcting…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Qihao Zhao , Yalun Dai , Shen Lin , Wei Hu , Fan Zhang , Jun Liu

Question answering (QA) over tables and linked text, also called TextTableQA, has witnessed significant research in recent years, as tables are often found embedded in documents along with related text. HybridQA and OTT-QA are the two…

Computation and Language · Computer Science 2023-06-13 Vishwajeet Kumar , Yash Gupta , Saneem Chemmengath , Jaydeep Sen , Soumen Chakrabarti , Samarth Bharadwaj , FeiFei Pan

In this paper, we introduce and apply Operations Research Question Answering (ORQA), a new benchmark designed to assess the generalization capabilities of Large Language Models (LLMs) in the specialized technical domain of Operations…

As the data scale grows, deep recognition models often suffer from long-tailed data distributions due to the heavy imbalanced sample number across categories. Indeed, real-world data usually exhibit some similarity relation among different…

Computer Vision and Pattern Recognition · Computer Science 2022-08-18 Lei Liu , Li Liu

We propose a distance supervised relation extraction approach for long-tailed, imbalanced data which is prevalent in real-world settings. Here, the challenge is to learn accurate "few-shot" models for classes existing at the tail of the…

Information Retrieval · Computer Science 2023-01-26 Ningyu Zhang , Shumin Deng , Zhanlin Sun , Guanying Wang , Xi Chen , Wei Zhang , Huajun Chen

Open domain question answering (ODQA) is a longstanding task aimed at answering factual questions from a large knowledge corpus without any explicit evidence in natural language processing (NLP). Recent works have predominantly focused on…

Computation and Language · Computer Science 2022-11-16 Qin Zhang , Shangsi Chen , Dongkuan Xu , Qingqing Cao , Xiaojun Chen , Trevor Cohn , Meng Fang

Ontology-based query answering (OBQA) augments classical query answering in databases by domain knowledge encoded in an ontology. Systems for OBQA use the ontological knowledge to infer new information that is not explicitly given in the…

Logic in Computer Science · Computer Science 2020-03-24 Stefan Borgwardt , Veronika Thost