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相关论文: Locally-Contextual Nonlinear CRFs for Sequence Lab…

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We consider Conditional Random Fields (CRFs) with pattern-based potentials defined on a chain. In this model the energy of a string (labeling) $x_1...x_n$ is the sum of terms over intervals $[i,j]$ where each term is non-zero only if the…

机器学习 · 计算机科学 2017-01-23 Rustem Takhanov , Vladimir Kolmogorov

We present a reproducibility study of the state-of-the-art neural architecture for sequence labeling proposed by Ma and Hovy (2016)\cite{ma2016end}. The original BiLSTM-CNN-CRF model combines character-level representations via…

计算与语言 · 计算机科学 2025-10-14 Anirudh Ganesh , Jayavardhan Reddy

In recent years, the amount of Cyber Security data generated in the form of unstructured texts, for example, social media resources, blogs, articles, and so on has exceptionally increased. Named Entity Recognition (NER) is an initial step…

计算与语言 · 计算机科学 2020-04-02 Simran K , Sriram S , Vinayakumar R , Soman KP

Taking word sequences as the input, typical named entity recognition (NER) models neglect errors from pre-processing (e.g., tokenization). However, these errors can influence the model performance greatly, especially for noisy texts like…

计算与语言 · 计算机科学 2019-08-16 Liyuan Liu , Zihan Wang , Jingbo Shang , Dandong Yin , Heng Ji , Xiang Ren , Shaowen Wang , Jiawei Han

This work proposes Recurrent Neural Network (RNN) models to predict structured 'image situations' -- actions and noun entities fulfilling semantic roles related to the action. In contrast to prior work relying on Conditional Random Fields…

计算机视觉与模式识别 · 计算机科学 2017-08-07 Arun Mallya , Svetlana Lazebnik

Deep structured output learning shows great promise in tasks like semantic image segmentation. We proffer a new, efficient deep structured model learning scheme, in which we show how deep Convolutional Neural Networks (CNNs) can be used to…

计算机视觉与模式识别 · 计算机科学 2015-09-09 Guosheng Lin , Chunhua Shen , Ian Reid , Anton van den Hengel

Recurrent neural network (RNN) based character-level language models (CLMs) are extremely useful for modeling out-of-vocabulary words by nature. However, their performance is generally much worse than the word-level language models (WLMs),…

机器学习 · 计算机科学 2017-02-03 Kyuyeon Hwang , Wonyong Sung

Contextualized word embeddings such as ELMo and BERT provide a foundation for strong performance across a wide range of natural language processing tasks by pretraining on large corpora of unlabeled text. However, the applicability of this…

计算与语言 · 计算机科学 2019-09-06 Xiaochuang Han , Jacob Eisenstein

This article offers an empirical exploration on the use of character-level convolutional networks (ConvNets) for text classification. We constructed several large-scale datasets to show that character-level convolutional networks could…

机器学习 · 计算机科学 2016-04-05 Xiang Zhang , Junbo Zhao , Yann LeCun

The success of retrieval-augmented language models in various natural language processing (NLP) tasks has been constrained in automatic speech recognition (ASR) applications due to challenges in constructing fine-grained audio-text…

声音 · 计算机科学 2024-02-06 Jiaming Zhou , Shiwan Zhao , Yaqi Liu , Wenjia Zeng , Yong Chen , Yong Qin

We consider two models for the sequence labeling (tagging) problem. The first one is a {\em Pattern-Based Conditional Random Field }(\PB), in which the energy of a string (chain labeling) $x=x_1\ldots x_n\in D^n$ is a sum of terms over…

形式语言与自动机理论 · 计算机科学 2014-11-04 Rustem Takhanov , Vladimir Kolmogorov

Rhetorical Role Labeling (RRL) of legal judgments is essential for various tasks, such as case summarization, semantic search and argument mining. However, it presents challenges such as inferring sentence roles from context, interrelated…

计算与语言 · 计算机科学 2024-04-03 T. Y. S. S Santosh , Hassan Sarwat , Ahmed Abdou , Matthias Grabmair

External knowledge is often useful for natural language understanding tasks. We introduce a contextual text representation model called Conceptual-Contextual (CC) embeddings, which incorporates structured knowledge into text…

计算与语言 · 计算机科学 2020-03-13 Xiao Zhang , Dejing Dou , Ji Wu

We develop a Deep-Text Recurrent Network (DTRN) that regards scene text reading as a sequence labelling problem. We leverage recent advances of deep convolutional neural networks to generate an ordered high-level sequence from a whole word…

计算机视觉与模式识别 · 计算机科学 2015-12-22 Pan He , Weilin Huang , Yu Qiao , Chen Change Loy , Xiaoou Tang

A common approach for sequence tagging tasks based on contextual word representations is to train a machine learning classifier directly on these embedding vectors. This approach has two shortcomings. First, such methods consider single…

Prosody affects the naturalness and intelligibility of speech. However, automatic prosody prediction from text for Chinese speech synthesis is still a great challenge and the traditional conditional random fields (CRF) based method always…

计算与语言 · 计算机科学 2015-11-03 Chuang Ding , Lei Xie , Jie Yan , Weini Zhang , Yang Liu

Recurrent neural networks (RNNs) have shown the ability to improve scene parsing through capturing long-range dependencies among image units. In this paper, we propose dense RNNs for scene labeling by exploring various long-range semantic…

计算机视觉与模式识别 · 计算机科学 2018-11-13 Heng Fan , Peng Chu , Longin Jan Latecki , Haibin Ling

There is an implicit assumption that by unfolding recurrent neural networks (RNN) in finite time, the misspecification of choosing a zero value for the initial hidden state is mitigated by later time steps. This assumption has been shown to…

机器学习 · 计算机科学 2019-02-12 Sam Wenke , Jim Fleming

Distributed word embeddings have shown superior performances in numerous Natural Language Processing (NLP) tasks. However, their performances vary significantly across different tasks, implying that the word embeddings learnt by those…

计算与语言 · 计算机科学 2017-09-21 Danushka Bollegala , Kohei Hayashi , Ken-ichi Kawarabayashi

Automated melodic phrase detection and segmentation is a classical task in content-based music information retrieval and also the key towards automated music structure analysis. However, traditional methods still cannot satisfy practical…

机器学习 · 计算机科学 2018-11-15 Yixing Guan , Jinyu Zhao , Yiqin Qiu , Zheng Zhang , Gus Xia