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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

Attention mechanism in sequence-to-sequence models is designed to model the alignments between acoustic features and output tokens in speech recognition. However, attention weights produced by models trained end to end do not always…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-27 Gene-Ping Yang , Hao Tang

Attention mechanisms are a central property of cognitive systems allowing them to selectively deploy cognitive resources in a flexible manner. Attention has been long studied in the neurosciences and there are numerous phenomenological…

Machine Learning · Computer Science 2023-04-11 Ryan Singh , Christopher L. Buckley

Time series classification(TSC) has always been an important and challenging research task. With the wide application of deep learning, more and more researchers use deep learning models to solve TSC problems. Since time series always…

Machine Learning · Computer Science 2021-01-27 Shibo Zhou , Yu Pan

Attention mechanisms have seen wide adoption in neural NLP models. In addition to improving predictive performance, these are often touted as affording transparency: models equipped with attention provide a distribution over attended-to…

Computation and Language · Computer Science 2019-05-10 Sarthak Jain , Byron C. Wallace

Spoken Language Understanding (SLU), including intent detection and slot filling, is a core component in human-computer interaction. The natural attributes of the relationship among the two subtasks make higher requirements on fine-grained…

Computation and Language · Computer Science 2021-08-27 Dongsheng Chen , Zhiqi Huang , Yuexian Zou

The advances in natural language processing (NLP) pose both opportunities and challenges. While recent progress enables the development of high-performing models for a variety of tasks, it also poses the risk of models learning harmful…

Computation and Language · Computer Science 2024-08-06 Abdelrahman Zayed , Goncalo Mordido , Samira Shabanian , Sarath Chandar

Automatically generating the descriptions of an image, i.e., image captioning, is an important and fundamental topic in artificial intelligence, which bridges the gap between computer vision and natural language processing. Based on the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-14 Shiyang Yan , Yuan Xie , Fangyu Wu , Jeremy S. Smith , Wenjin Lu , Bailing Zhang

Sentence-level classification and sequential labeling are two fundamental tasks in language understanding. While these two tasks are usually modeled separately, in reality, they are often correlated, for example in intent classification and…

Computation and Language · Computer Science 2017-10-02 Mingbo Ma , Kai Zhao , Liang Huang , Bing Xiang , Bowen Zhou

How to obtain hierarchical representations with an increasing level of abstraction becomes one of the key issues of learning with deep neural networks. A variety of RNN models have recently been proposed to incorporate both explicit and…

Computation and Language · Computer Science 2022-01-25 Zhaoxin Luo , Michael Zhu

Text segmentation plays an important role in various Natural Language Processing (NLP) tasks like summarization, context understanding, document indexing and document noise removal. Previous methods for this task require manual feature…

Machine Learning · Computer Science 2018-08-30 Pinkesh Badjatiya , Litton J Kurisinkel , Manish Gupta , Vasudeva Varma

Transformer-based Large Language Models (LLMs) are the state-of-the-art for natural language tasks. Recent work has attempted to decode, by reverse engineering the role of linear layers, the internal mechanisms by which LLMs arrive at their…

Computation and Language · Computer Science 2023-10-26 Mansi Sakarvadia , Arham Khan , Aswathy Ajith , Daniel Grzenda , Nathaniel Hudson , André Bauer , Kyle Chard , Ian Foster

Cutting planes (cuts) play an important role in solving mixed-integer linear programs (MILPs), which formulate many important real-world applications. Cut selection heavily depends on (P1) which cuts to prefer and (P2) how many cuts to…

Artificial Intelligence · Computer Science 2024-04-22 Jie Wang , Zhihai Wang , Xijun Li , Yufei Kuang , Zhihao Shi , Fangzhou Zhu , Mingxuan Yuan , Jia Zeng , Yongdong Zhang , Feng Wu

Neural network has become the dominant method for Chinese word segmentation. Most existing models cast the task as sequence labeling, using BiLSTM-CRF for representing the input and making output predictions. Recently, attention-based…

Computation and Language · Computer Science 2019-07-29 Leilei Gan , Yue Zhang

Neural network architectures in natural language processing often use attention mechanisms to produce probability distributions over input token representations. Attention has empirically been demonstrated to improve performance in various…

Computation and Language · Computer Science 2021-05-10 George Chrysostomou , Nikolaos Aletras

Sequential neural networks models are powerful tools in a variety of Natural Language Processing (NLP) tasks. The sequential nature of these models raises the questions: to what extent can these models implicitly learn hierarchical…

Computation and Language · Computer Science 2018-11-27 Shauli Ravfogel , Francis M. Tyers , Yoav Goldberg

Machine comprehension(MC) style question answering is a representative problem in natural language processing. Previous methods rarely spend time on the improvement of encoding layer, especially the embedding of syntactic information and…

Artificial Intelligence · Computer Science 2017-07-31 Boyuan Pan , Hao Li , Zhou Zhao , Bin Cao , Deng Cai , Xiaofei He

Semantic matching is of central significance to the answer selection task which aims to select correct answers for a given question from a candidate answer pool. A useful method is to employ neural networks with attention to generate…

Computation and Language · Computer Science 2021-05-10 Jie Huang

Self-attention networks (SAN) have attracted a lot of interests due to their high parallelization and strong performance on a variety of NLP tasks, e.g. machine translation. Due to the lack of recurrence structure such as recurrent neural…

Computation and Language · Computer Science 2019-06-04 Baosong Yang , Longyue Wang , Derek F. Wong , Lidia S. Chao , Zhaopeng Tu

Reinforcement Learning (RL) has proven highly effective at enhancing the complex reasoning abilities of Large Language Models (LLMs), yet underlying mechanisms driving this success remain largely opaque. Our analysis reveals that puzzling…

Artificial Intelligence · Computer Science 2025-09-30 Haozhe Wang , Qixin Xu , Che Liu , Junhong Wu , Fangzhen Lin , Wenhu Chen