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With the success of language pretraining, it is highly desirable to develop more efficient architectures of good scalability that can exploit the abundant unlabeled data at a lower cost. To improve the efficiency, we examine the…

机器学习 · 计算机科学 2020-06-08 Zihang Dai , Guokun Lai , Yiming Yang , Quoc V. Le

Dependency trees help relation extraction models capture long-range relations between words. However, existing dependency-based models either neglect crucial information (e.g., negation) by pruning the dependency trees too aggressively, or…

计算与语言 · 计算机科学 2018-09-28 Yuhao Zhang , Peng Qi , Christopher D. Manning

Transformer-based pre-trained language models have proven to be effective for learning contextualized language representation. However, current approaches only take advantage of the output of the encoder's final layer when fine-tuning the…

计算与语言 · 计算机科学 2020-04-30 Junjie Yang , Hai Zhao

Document-level relation extraction (DocRE) aims to extract semantic relations among entity pairs in a document. Typical DocRE methods blindly take the full document as input, while a subset of the sentences in the document, noted as the…

计算与语言 · 计算机科学 2022-03-08 Yiqing Xie , Jiaming Shen , Sha Li , Yuning Mao , Jiawei Han

How can we best encode structured data into sequential form for use in large language models (LLMs)? In this work, we introduce a parameter-efficient method to explicitly represent structured data for LLMs. Our method, GraphToken, learns an…

机器学习 · 计算机科学 2024-02-09 Bryan Perozzi , Bahare Fatemi , Dustin Zelle , Anton Tsitsulin , Mehran Kazemi , Rami Al-Rfou , Jonathan Halcrow

Masked Language Modeling (MLM) has been one of the most prominent approaches for pretraining bidirectional text encoders due to its simplicity and effectiveness. One notable concern about MLM is that the special $\texttt{[MASK]}$ symbol…

计算与语言 · 计算机科学 2024-03-19 Yu Meng , Jitin Krishnan , Sinong Wang , Qifan Wang , Yuning Mao , Han Fang , Marjan Ghazvininejad , Jiawei Han , Luke Zettlemoyer

The performance of a large language model (LLM) depends heavily on the quality and size of its pretraining dataset. However, the pretraining datasets for state-of-the-art open LLMs like Llama 3 and Mixtral are not publicly available and…

Transformer-based Language Models are widely used in Natural Language Processing related tasks. Thanks to their pre-training, they have been successfully adapted to Information Extraction in business documents. However, most pre-training…

计算与语言 · 计算机科学 2023-09-12 Thibault Douzon , Stefan Duffner , Christophe Garcia , Jérémy Espinas

In network representation learning we learn how to represent heterogeneous information networks in a low-dimensional space so as to facilitate effective search, classification, and prediction solutions. Previous network representation…

人工智能 · 计算机科学 2021-05-19 Yang Fang , Xiang Zhao , Yifan Chen , Weidong Xiao , Maarten de Rijke

Embedding models play a crucial role in representing and retrieving information across various NLP applications. Recent advances in large language models (LLMs) have further enhanced the performance of embedding models. While these models…

计算与语言 · 计算机科学 2025-09-15 Yixuan Tang , Yi Yang

The Transformer architecture is shown to provide a powerful framework as an end-to-end model for building expression trees from online handwritten gestures corresponding to glyph strokes. In particular, the attention mechanism was…

计算与语言 · 计算机科学 2022-11-07 Mirco Ramo , Guénolé C. M. Silvestre

Financial sentiment analysis allows financial institutions like Banks and Insurance Companies to better manage the credit scoring of their customers in a better way. Financial domain uses specialized mechanisms which makes sentiment…

计算与语言 · 计算机科学 2024-05-06 Tohida Rehman , Raghubir Bose , Samiran Chattopadhyay , Debarshi Kumar Sanyal

Traditional relation extraction predicts relations within some fixed and finite target schema. Machine learning approaches to this task require either manual annotation or, in the case of distant supervision, existing structured sources of…

机器学习 · 计算机科学 2013-01-29 Sebastian Riedel , Limin Yao , Andrew McCallum

Relation extraction (RE), which has relied on structurally annotated corpora for model training, has been particularly challenging in low-resource scenarios and domains. Recent literature has tackled low-resource RE by self-supervised…

计算与语言 · 计算机科学 2023-06-01 Wenxuan Zhou , Sheng Zhang , Tristan Naumann , Muhao Chen , Hoifung Poon

We present a method for constructing taxonomic trees (e.g., WordNet) using pretrained language models. Our approach is composed of two modules, one that predicts parenthood relations and another that reconciles those predictions into trees.…

计算与语言 · 计算机科学 2021-11-03 Catherine Chen , Kevin Lin , Dan Klein

We present a representation learning framework for financial time series forecasting. One challenge of using deep learning models for finance forecasting is the shortage of available training data when using small datasets. Direct trend…

机器学习 · 计算机科学 2021-05-10 Hanwei Wu , Ather Gattami , Markus Flierl

In this work, we aim at equipping pre-trained language models with structured knowledge. We present two self-supervised tasks learning over raw text with the guidance from knowledge graphs. Building upon entity-level masked language models,…

计算与语言 · 计算机科学 2020-04-30 Tao Shen , Yi Mao , Pengcheng He , Guodong Long , Adam Trischler , Weizhu Chen

Over the last two decades, the development of the CoNLL-2003 named entity recognition (NER) dataset has helped enhance the capabilities of deep learning and natural language processing (NLP). The finance domain, characterized by its unique…

计算与语言 · 计算机科学 2024-09-10 Agam Shah , Abhinav Gullapalli , Ruchit Vithani , Michael Galarnyk , Sudheer Chava

Recent advancements in computational chemistry have leveraged the power of trans-former-based language models, such as MoLFormer, pre-trained using a vast amount of simplified molecular-input line-entry system (SMILES) sequences, to…

生物大分子 · 定量生物学 2024-11-05 Tianhao Peng , Yuchen Li , Xuhong Li , Jiang Bian , Zeke Xie , Ning Sui , Shahid Mumtaz , Yanwu Xu , Linghe Kong , Haoyi Xiong

Financial time series forecasting is both highly significant and challenging. Previous approaches typically standardized time series data before feeding it into forecasting models, but this encoding process inherently leads to a loss of…