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Related papers: Unsupervised Context Retrieval for Long-tail Entit…

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Self-supervised learning has achieved a great success in the representation learning of visual and textual data. However, the current methods are mainly validated on the well-curated datasets, which do not exhibit the real-world long-tailed…

Computer Vision and Pattern Recognition · Computer Science 2022-07-08 Zhihan Zhou , Jiangchao Yao , Yanfeng Wang , Bo Han , Ya Zhang

Unsupervised extractive summarization is an important technique in information extraction and retrieval. Compared with supervised method, it does not require high-quality human-labelled summaries for training and thus can be easily applied…

Artificial Intelligence · Computer Science 2023-12-19 Renlong Jie , Xiaojun Meng , Xin Jiang , Qun Liu

Recent work has identified retrieval heads, a subset of attention heads responsible for retrieving salient information in long-context language models (LMs), as measured by their copy-paste behavior in Needlein-a-Haystack tasks. In this…

Computation and Language · Computer Science 2025-09-30 Wuwei Zhang , Fangcong Yin , Howard Yen , Danqi Chen , Xi Ye

We present a token-level decision summarization framework that utilizes the latent topic structures of utterances to identify "summary-worthy" words. Concretely, a series of unsupervised topic models is explored and experimental results…

Computation and Language · Computer Science 2016-06-28 Lu Wang , Claire Cardie

Unsupervised relation discovery aims to discover new relations from a given text corpus without annotated data. However, it does not consider existing human annotated knowledge bases even when they are relevant to the relations to be…

Computation and Language · Computer Science 2019-05-07 Yan Liang , Xin Liu , Jianwen Zhang , Yangqiu Song

Dense event captioning aims to detect and describe all events of interest contained in a video. Despite the advanced development in this area, existing methods tackle this task by making use of dense temporal annotations, which is…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Xuguang Duan , Wenbing Huang , Chuang Gan , Jingdong Wang , Wenwu Zhu , Junzhou Huang

The ability of large language models (LLMs) to process and reason over long textual inputs is critical for a wide range of real-world applications. However, progress in this area is significantly constrained by the absence of high-quality,…

Computation and Language · Computer Science 2025-09-05 Seganrasan Subramanian , Abhigya Verma

Although large language models (LLMs) demonstrate impressive performance for many language tasks, most of them can only handle texts a few thousand tokens long, limiting their applications on longer sequence inputs, such as books, reports,…

Computation and Language · Computer Science 2024-06-21 Yushi Bai , Xin Lv , Jiajie Zhang , Hongchang Lyu , Jiankai Tang , Zhidian Huang , Zhengxiao Du , Xiao Liu , Aohan Zeng , Lei Hou , Yuxiao Dong , Jie Tang , Juanzi Li

Large language models (LLMs) have received significant attention by achieving remarkable performance across various tasks. However, their fixed context length poses challenges when processing long documents or maintaining extended…

Computation and Language · Computer Science 2023-04-25 Yucheng Li

The emergence of structured databases for Question Answering (QA) systems has led to developing methods, in which the problem of learning the correct answer efficiently is based on a linking task between the constituents of the question and…

Machine Learning · Computer Science 2020-03-05 Hamid Zafar , Maryam Tavakol , Jens Lehmann

Short-text classification, like all data science, struggles to achieve high performance using limited data. As a solution, a short sentence may be expanded with new and relevant feature words to form an artificially enlarged dataset, and…

Computation and Language · Computer Science 2019-09-18 Duncan Cameron-Steinke

Text summarization aims to extract essential information from a piece of text and transform the text into a concise version. Existing unsupervised abstractive summarization models leverage recurrent neural networks framework while the…

Computation and Language · Computer Science 2020-10-20 Ziyi Yang , Chenguang Zhu , Robert Gmyr , Michael Zeng , Xuedong Huang , Eric Darve

Distant supervised relation extraction is an efficient approach to scale relation extraction to very large corpora, and has been widely used to find novel relational facts from plain text. Recent studies on neural relation extraction have…

Computation and Language · Computer Science 2018-01-12 Zhengqiu He , Wenliang Chen , Zhenghua Li , Meishan Zhang , Wei Zhang , Min Zhang

Knowledge is captured in the form of entities and their relationships and stored in knowledge graphs. Knowledge graphs enhance the capabilities of applications in many different areas including Web search, recommendation, and natural…

Machine Learning · Computer Science 2021-03-31 Kalpa Gunaratna , Yu Wang , Hongxia Jin

Specialized entity linking (EL) models are well-trained at mapping mentions to unique knowledge base (KB) entities according to a given context. However, specialized EL models struggle to disambiguate long-tail entities due to their limited…

Computation and Language · Computer Science 2025-09-29 Amy Xin , Yunjia Qi , Zijun Yao , Fangwei Zhu , Kaisheng Zeng , Xu Bin , Lei Hou , Juanzi Li

Legal text retrieval serves as a key component in a wide range of legal text processing tasks such as legal question answering, legal case entailment, and statute law retrieval. The performance of legal text retrieval depends, to a large…

Information Retrieval · Computer Science 2023-04-12 Ha-Thanh Nguyen , Manh-Kien Phi , Xuan-Bach Ngo , Vu Tran , Le-Minh Nguyen , Minh-Phuong Tu

Recent work on unsupervised question answering has shown that models can be trained with procedurally generated question-answer pairs and can achieve performance competitive with supervised methods. In this work, we consider the task of…

Computation and Language · Computer Science 2021-03-23 Pratyay Banerjee , Tejas Gokhale , Chitta Baral

Named entities are fundamental building blocks of knowledge in text, grounding factual information and structuring relationships within language. Despite their importance, it remains unclear how Large Language Models (LLMs) internally…

Computation and Language · Computer Science 2025-10-13 Victor Morand , Josiane Mothe , Benjamin Piwowarski

The ability to track large-scale events as they happen is essential for understanding them and coordinating reactions in an appropriate and timely manner. This is true, for example, in emergency management and decision-making support, where…

Computers and Society · Computer Science 2022-06-28 Carlo Bono , Barbara Pernici

Large Language Models (LLMs) have recently achieved remarkable performance in long-context understanding. However, current long-context LLM benchmarks are limited by rigid context length, labor-intensive annotation, and the pressing…

Computation and Language · Computer Science 2025-10-21 Haozhen Zhang , Tao Feng , Pengrui Han , Jiaxuan You