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Large language models (LLMs) have demonstrated strong performance in sentence-level machine translation, but scaling to document-level translation remains challenging, particularly in modeling long-range dependencies and discourse phenomena…

Computation and Language · Computer Science 2025-08-29 Miguel Moura Ramos , Patrick Fernandes , Sweta Agrawal , André F. T. Martins

Recent approaches in literature have exploited the multi-modal information in documents (text, layout, image) to serve specific downstream document tasks. However, they are limited by their - (i) inability to learn cross-modal…

Computation and Language · Computer Science 2022-01-06 Subhojeet Pramanik , Shashank Mujumdar , Hima Patel

In recent years, Natural Language Processing (NLP) models have achieved phenomenal success in linguistic and semantic tasks like text classification, machine translation, cognitive dialogue systems, information retrieval via Natural…

Computation and Language · Computer Science 2021-05-18 Sushant Singh , Ausif Mahmood

Dividing sentences in chunks of words is a useful preprocessing step for parsing, information extraction and information retrieval. (Ramshaw and Marcus, 1995) have introduced a "convenient" data representation for chunking by converting it…

Computation and Language · Computer Science 2007-05-23 Erik F. Tjong Kim Sang , Jorn Veenstra

Pre-trained Transformers currently dominate most NLP tasks. They impose, however, limits on the maximum input length (512 sub-words in BERT), which are too restrictive in the legal domain. Even sparse-attention models, such as Longformer…

Computation and Language · Computer Science 2022-11-11 Dimitris Mamakas , Petros Tsotsi , Ion Androutsopoulos , Ilias Chalkidis

Enlarging the context window of large language models (LLMs) has become a crucial research area, particularly for applications involving extremely long texts. In this work, we propose a novel training-free framework for processing long…

Computation and Language · Computer Science 2024-10-15 Zihan Zhou , Chong Li , Xinyi Chen , Shuo Wang , Yu Chao , Zhili Li , Haoyu Wang , Rongqiao An , Qi Shi , Zhixing Tan , Xu Han , Xiaodong Shi , Zhiyuan Liu , Maosong Sun

Long document summarization poses a significant challenge in natural language processing due to input lengths that exceed the capacity of most state-of-the-art pre-trained language models. This study proposes a hierarchical framework that…

Computation and Language · Computer Science 2024-10-10 Yuan-Jhe Yin , Bo-Yu Chen , Berlin Chen

Transformer-based Large Language Models (LLMs) often impose limitations on the length of the text input to ensure the generation of fluent and relevant responses. This constraint restricts their applicability in scenarios involving long…

Computation and Language · Computer Science 2023-12-18 Weizhi Fei , Xueyan Niu , Pingyi Zhou , Lu Hou , Bo Bai , Lei Deng , Wei Han

Prompt compression methods enhance the efficiency of Large Language Models (LLMs) and minimize the cost by reducing the length of input context. The goal of prompt compression is to shorten the LLM prompt while maintaining a high generation…

Computation and Language · Computer Science 2025-08-25 Tinghui Zhang , Yifan Wang , Daisy Zhe Wang

Many natural language understanding (NLU) tasks, such as shallow parsing (i.e., text chunking) and semantic slot filling, require the assignment of representative labels to the meaningful chunks in a sentence. Most of the current deep…

Computation and Language · Computer Science 2017-01-17 Feifei Zhai , Saloni Potdar , Bing Xiang , Bowen Zhou

Although transformer-based models have shown strong performance in word- and sentence-level tasks, effectively representing long documents, especially in fields like law and medicine, remains difficult. Sparse attention mechanisms can…

Computation and Language · Computer Science 2026-01-01 Waheed Ahmed Abro , Zied Bouraoui

The quadratic computational and memory complexities of large Transformers have limited their scalability for long document summarization. In this paper, we propose Hepos, a novel efficient encoder-decoder attention with head-wise positional…

Computation and Language · Computer Science 2021-04-13 Luyang Huang , Shuyang Cao , Nikolaus Parulian , Heng Ji , Lu Wang

Processing long contexts remains a challenge for large language models (LLMs) due to the quadratic computational and memory overhead of the self-attention mechanism and the substantial KV cache sizes during generation. We propose LLoCO, a…

Computation and Language · Computer Science 2024-10-18 Sijun Tan , Xiuyu Li , Shishir Patil , Ziyang Wu , Tianjun Zhang , Kurt Keutzer , Joseph E. Gonzalez , Raluca Ada Popa

Natural language understanding (NLU) is the task of semantic decoding of human languages by machines. NLU models rely heavily on large training data to ensure good performance. However, substantial languages and domains have very few data…

Computation and Language · Computer Science 2022-08-22 Zihan Liu

The adoption of Deep Neural Networks (DNNs) has greatly benefited Natural Language Processing (NLP) during the past decade. However, the demands of long document analysis are quite different from those of shorter texts, while the ever…

Computation and Language · Computer Science 2024-03-18 Dimitrios Tsirmpas , Ioannis Gkionis , Georgios Th. Papadopoulos , Ioannis Mademlis

Existing long-document question answering systems typically process texts as flat sequences or use heuristic chunking, which overlook the discourse structures that naturally guide human comprehension. We present a discourse-aware…

Information Retrieval · Computer Science 2026-05-08 Huiyao Chen , Yi Yang , Yinghui Li , Meishan Zhang , Baotian Hu , Min Zhang

Constructing accurate knowledge graphs from long texts and low-resource languages is challenging, as large language models (LLMs) experience degraded performance with longer input chunks. This problem is amplified in low-resource settings…

Computation and Language · Computer Science 2025-03-25 Divyansh Singh , Manuel Nunez Martinez , Bonnie J. Dorr , Sonja Schmer Galunder

As large language models increasingly gain popularity in real-world applications, processing extremely long contexts, often exceeding the model's pre-trained context limits, has emerged as a critical challenge. While existing approaches to…

Long sequence modeling has gained broad interest as large language models (LLMs) continue to advance. Recent research has identified that a large portion of hidden states within the key-value caches of Transformer models can be discarded…

Computation and Language · Computer Science 2024-10-10 Yu Bai , Xiyuan Zou , Heyan Huang , Sanxing Chen , Marc-Antoine Rondeau , Yang Gao , Jackie Chi Kit Cheung

Large Language Models (LLMs) require significant GPU memory when processing long texts, with the key value (KV) cache consuming up to 70\% of total memory during inference. Although existing compression methods reduce memory by evaluating…

Computation and Language · Computer Science 2025-10-15 Xiang Liu , Zhenheng Tang , Peijie Dong , Zeyu Li , Yue Liu , Bo Li , Xuming Hu , Xiaowen Chu