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Attention-based long short-term memory (LSTM) networks have proven to be useful in aspect-level sentiment classification. However, due to the difficulties in annotating aspect-level data, existing public datasets for this task are all…

Computation and Language · Computer Science 2018-06-13 Ruidan He , Wee Sun Lee , Hwee Tou Ng , Daniel Dahlmeier

Current language models often fail to incorporate long contexts efficiently during generation. We show that a major contributor to this issue are attention priors that are likely learned during pre-training: relevant information located…

Computation and Language · Computer Science 2023-10-04 Alexander Peysakhovich , Adam Lerer

Broad textual understanding and in-context learning require language models that utilize full document contexts. Due to the implementation challenges associated with directly training long-context models, many methods have been proposed for…

Computation and Language · Computer Science 2024-09-24 Yi Lu , Jing Nathan Yan , Songlin Yang , Justin T. Chiu , Siyu Ren , Fei Yuan , Wenting Zhao , Zhiyong Wu , Alexander M. Rush

Anomaly detection is critical in domains such as cybersecurity and finance, especially when working with large-scale tabular data. Yet, unsupervised anomaly detection-where no labeled anomalies are available-remains challenging because…

Machine Learning · Computer Science 2025-11-19 Spencer King , Zhilu Zhang , Ruofan Yu , Baris Coskun , Wei Ding , Qian Cui

Document-level relation extraction aims at inferring structured human knowledge from textual documents. State-of-the-art methods for this task use pre-trained language models (LMs) via fine-tuning, yet fine-tuning is computationally…

Computation and Language · Computer Science 2024-10-03 Yilmazcan Ozyurt , Stefan Feuerriegel , Ce Zhang

Text classification is a very classic NLP task, but it has two prominent shortcomings: On the one hand, text classification is deeply domain-dependent. That is, a classifier trained on the corpus of one domain may not perform so well in…

Computation and Language · Computer Science 2022-10-28 Zilin Yuan , Yinghui Li , Yangning Li , Rui Xie , Wei Wu , Hai-Tao Zheng

Document-level translation models are usually evaluated using general metrics such as BLEU, which are not informative about the benefits of context. Current work on context-aware evaluation, such as contrastive methods, only measure…

Computation and Language · Computer Science 2024-02-05 Wafaa Mohammed , Vlad Niculae

A key challenge in entity linking is making effective use of contextual information to disambiguate mentions that might refer to different entities in different contexts. We present a model that uses convolutional neural networks to capture…

Computation and Language · Computer Science 2016-04-05 Matthew Francis-Landau , Greg Durrett , Dan Klein

This article presents an analysis of the influence of context information on dialog act recognition. We performed experiments on the widely explored Switchboard corpus, as well as on data annotated according to the recent ISO 24617-2…

Computation and Language · Computer Science 2017-01-10 Eugénio Ribeiro , Ricardo Ribeiro , David Martins de Matos

Retrieval-augmented generation (RAG) systems rely on accurate document retrieval to ground large language models (LLMs) in external knowledge, yet retrieval quality often degrades in corpora where topics overlap and thematic variation is…

Information Retrieval · Computer Science 2026-01-06 Rodrigo Kataishi

Document retrieval has greatly benefited from the advancements of large-scale pre-trained language models (PLMs). However, their effectiveness is often limited in theme-specific applications for specialized areas or industries, due to…

Information Retrieval · Computer Science 2024-03-08 SeongKu Kang , Shivam Agarwal , Bowen Jin , Dongha Lee , Hwanjo Yu , Jiawei Han

Large language models (LLMs) are increasingly strong contenders in machine translation. In this work, we focus on document-level translation, where some words cannot be translated without context from outside the sentence. Specifically, we…

Computation and Language · Computer Science 2025-02-17 Wafaa Mohammed , Vlad Niculae

In content-based image retrieval, the first-round retrieval result by simple visual feature comparison may be unsatisfactory, which can be refined by visual re-ranking techniques. In image retrieval, it is observed that the contextual…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Jianbo Ouyang , Hui Wu , Min Wang , Wengang Zhou , Houqiang Li

Dialogue act recognition is a fundamental task for an intelligent dialogue system. Previous work models the whole dialog to predict dialog acts, which may bring the noise from unrelated sentences. In this work, we design a hierarchical…

Computation and Language · Computer Science 2020-03-16 Zhigang Dai , Jinhua Fu , Qile Zhu , Hengbin Cui , Xiaolong li , Yuan Qi

Context-aware neural machine translation (NMT) is a promising direction to improve the translation quality by making use of the additional context, e.g., document-level translation, or having meta-information. Although there exist various…

Computation and Language · Computer Science 2020-10-20 Jingjing Huo , Christian Herold , Yingbo Gao , Leonard Dahlmann , Shahram Khadivi , Hermann Ney

Neural machine translation (NMT) has arguably achieved human level parity when trained and evaluated at the sentence-level. Document-level neural machine translation has received less attention and lags behind its sentence-level…

Computation and Language · Computer Science 2020-03-12 Elman Mansimov , Gábor Melis , Lei Yu

Nowadays, many Natural Language Processing (NLP) tasks see the demand for incorporating knowledge external to the local information to further improve the performance. However, there is little related work on Named Entity Recognition (NER),…

Computation and Language · Computer Science 2023-03-07 Chiao-Wei Hsu , Keh-Yih Su

Document-level context has received lots of attention for compensating neural machine translation (NMT) of isolated sentences. However, recent advances in document-level NMT focus on sophisticated integration of the context, explaining its…

Computation and Language · Computer Science 2019-10-02 Yunsu Kim , Duc Thanh Tran , Hermann Ney

Tagging is nowadays the most prevalent and practical way to make images searchable. However, in reality many manually-assigned tags are irrelevant to image content and hence are not reliable for applications. A lot of recent efforts have…

Information Retrieval · Computer Science 2013-07-31 Jingdong Wang , Jiazhen Zhou , Hao Xu , Tao Mei , Xian-Sheng Hua , Shipeng Li

Most real-world document collections involve various types of metadata, such as author, source, and date, and yet the most commonly-used approaches to modeling text corpora ignore this information. While specialized models have been…

Machine Learning · Statistics 2018-10-25 Dallas Card , Chenhao Tan , Noah A. Smith