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Pre-trained language models (PLMs) have proven to be effective for document re-ranking task. However, they lack the ability to fully interpret the semantics of biomedical and health-care queries and often rely on simplistic patterns for…

计算与语言 · 计算机科学 2023-05-09 Deepak Gupta , Dina Demner-Fushman

Pretrained language models have improved effectiveness on numerous tasks, including ad-hoc retrieval. Recent work has shown that continuing to pretrain a language model with auxiliary objectives before fine-tuning on the retrieval task can…

信息检索 · 计算机科学 2022-04-27 Eugene Yang , Suraj Nair , Ramraj Chandradevan , Rebecca Iglesias-Flores , Douglas W. Oard

Large language models (LLMs) have advanced in large strides due to the effectiveness of the self-attention mechanism that processes and compares all tokens at once. However, this mechanism comes with a fundamental issue -- the predetermined…

计算与语言 · 计算机科学 2023-10-10 Howard Chen , Ramakanth Pasunuru , Jason Weston , Asli Celikyilmaz

Large language models (LLMs) offer substantial promise for text classification in political science, yet their effectiveness often depends on high-quality prompts and exemplars. To address this, we introduce a three-stage framework that…

计算与语言 · 计算机科学 2025-04-08 Menglin Liu , Ge Shi

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…

计算与语言 · 计算机科学 2024-09-24 Yi Lu , Jing Nathan Yan , Songlin Yang , Justin T. Chiu , Siyu Ren , Fei Yuan , Wenting Zhao , Zhiyong Wu , Alexander M. Rush

Common language models typically predict the next word given the context. In this work, we propose a method that improves language modeling by learning to align the given context and the following phrase. The model does not require any…

计算与语言 · 计算机科学 2019-06-06 Hongyin Luo , Lan Jiang , Yonatan Belinkov , James Glass

Large pre-trained language models have demonstrated their proficiency in storing factual knowledge within their parameters and achieving remarkable results when fine-tuned for downstream natural language processing tasks. Nonetheless, their…

计算与语言 · 计算机科学 2023-09-29 Konstantinos Andriopoulos , Johan Pouwelse

Class-based language models (LMs) have been long devised to address context sparsity in $n$-gram LMs. In this study, we revisit this approach in the context of neural LMs. We hypothesize that class-based prediction leads to an implicit…

计算与语言 · 计算机科学 2022-03-22 He Bai , Tong Wang , Alessandro Sordoni , Peng Shi

Recent advancements in the field of Natural Language Processing, particularly the development of large-scale language models that are pretrained on vast amounts of knowledge, are creating novel opportunities within the realm of Knowledge…

计算与语言 · 计算机科学 2023-10-06 Anisa Rula , Jennifer D'Souza

Large language models (LLMs) based on Transformer have been widely applied in the filed of natural language processing (NLP), demonstrating strong performance, particularly in handling short text tasks. However, when it comes to long…

计算与语言 · 计算机科学 2025-07-09 Yijun Liu , Jinzheng Yu , Yang Xu , Zhongyang Li , Qingfu Zhu

Large language models have shown astonishing performance on a wide range of reasoning tasks. In this paper, we investigate whether they could reason about real-world events and help improve the prediction performance of event sequence…

计算与语言 · 计算机科学 2023-10-10 Xiaoming Shi , Siqiao Xue , Kangrui Wang , Fan Zhou , James Y. Zhang , Jun Zhou , Chenhao Tan , Hongyuan Mei

We present an empirical study of adapting an existing pretrained text-to-text model for long-sequence inputs. Through a comprehensive study along three axes of the pretraining pipeline -- model architecture, optimization objective, and…

计算与语言 · 计算机科学 2022-11-17 Wenhan Xiong , Anchit Gupta , Shubham Toshniwal , Yashar Mehdad , Wen-tau Yih

Recent advances in Large Language Models (LLMs) have been changing the paradigm of Recommender Systems (RS). However, when items in the recommendation scenarios contain rich textual information, such as product descriptions in online…

信息检索 · 计算机科学 2024-03-21 Zhi Zheng , Wenshuo Chao , Zhaopeng Qiu , Hengshu Zhu , Hui Xiong

The rapid evolution of Large Language Models (LLMs) has markedly expanded their application across diverse domains, transforming how complex problems are approached and solved. Initially conceived to predict subsequent words in texts, these…

人工智能 · 计算机科学 2024-07-11 Sumedh Rasal , E. J. Hauer

Recently, large language models (LLMs) have shown remarkable capabilities including understanding context, engaging in logical reasoning, and generating responses. However, this is achieved at the expense of stringent computational and…

计算与语言 · 计算机科学 2024-05-30 Xindi Wang , Mahsa Salmani , Parsa Omidi , Xiangyu Ren , Mehdi Rezagholizadeh , Armaghan Eshaghi

In this paper, we champion the use of structured and semantic content representation of discourse-based scholarly communication, inspired by tools like Wikipedia infoboxes or structured Amazon product descriptions. These representations…

计算与语言 · 计算机科学 2024-01-19 Mahsa Shamsabadi , Jennifer D'Souza , Sören Auer

Fine-tuning Large Language Models (LLMs) is now a common approach for text classification in a wide range of applications. When labeled documents are scarce, active learning helps save annotation efforts but requires retraining of massive…

机器学习 · 计算机科学 2024-02-27 Artem Vysogorets , Achintya Gopal

Research on text simplification has primarily focused on lexical and sentence-level changes. Long document-level simplification (DS) is still relatively unexplored. Large Language Models (LLMs), like ChatGPT, have excelled in many natural…

计算与语言 · 计算机科学 2025-01-08 Dengzhao Fang , Jipeng Qiang , Yi Zhu , Yunhao Yuan , Wei Li , Yan Liu

The advent of Large Language Models (LLMs) represents a notable breakthrough in Natural Language Processing (NLP), contributing to substantial progress in both text comprehension and generation. However, amidst these advancements, it is…

计算与语言 · 计算机科学 2024-01-17 Saurav Pawar , S. M Towhidul Islam Tonmoy , S M Mehedi Zaman , Vinija Jain , Aman Chadha , Amitava Das

As large language models (LLMs) are pretrained on massive web corpora, careful selection of data becomes essential to ensure effective and efficient learning. While perplexity (PPL)-based filtering has shown strong performance, it suffers…

计算与语言 · 计算机科学 2026-03-04 Yeongbin Seo , Gayoung Kim , Jaehyung Kim , Jinyoung Yeo