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In this study, we try to address the problem of leveraging visual signals to improve Automatic Speech Recognition (ASR), also known as visual context-aware ASR (VC-ASR). We explore novel VC-ASR approaches to leverage video and text…

音频与语音处理 · 电气工程与系统科学 2020-11-10 Shahram Ghorbani , Yashesh Gaur , Yu Shi , Jinyu Li

Automatic Speech Recognition (ASR) in conversational settings presents unique challenges, including extracting relevant contextual information from previous conversational turns. Due to irrelevant content, error propagation, and redundancy,…

声音 · 计算机科学 2024-04-30 Kun Wei , Bei Li , Hang Lv , Quan Lu , Ning Jiang , Lei Xie

Bidirectional Encoder Representations from Transformers (BERT) represents the latest incarnation of pretrained language models which have recently advanced a wide range of natural language processing tasks. In this paper, we showcase how…

计算与语言 · 计算机科学 2019-09-06 Yang Liu , Mirella Lapata

Document-level relation extraction aims to extract relations among multiple entity pairs from a document. Previously proposed graph-based or transformer-based models utilize the entities independently, regardless of global information among…

计算与语言 · 计算机科学 2023-01-27 Ningyu Zhang , Xiang Chen , Xin Xie , Shumin Deng , Chuanqi Tan , Mosha Chen , Fei Huang , Luo Si , Huajun Chen

Recent studies in Retrieval-Augmented Generation (RAG) have investigated extracting evidence from retrieved passages to reduce computational costs and enhance the final RAG performance, yet it remains challenging. Existing methods heavily…

计算与语言 · 计算机科学 2024-10-16 Xinping Zhao , Dongfang Li , Yan Zhong , Boren Hu , Yibin Chen , Baotian Hu , Min Zhang

Document-level event argument extraction poses new challenges of long input and cross-sentence inference compared to its sentence-level counterpart. However, most prior works focus on capturing the relations between candidate arguments and…

计算与语言 · 计算机科学 2023-10-23 Wanlong Liu , Shaohuan Cheng , Dingyi Zeng , Hong Qu

Structural extraction of events within discourse is critical since it avails a deeper understanding of communication patterns and behavior trends. Event argument extraction (EAE), at the core of event-centric understanding, is the task of…

计算与语言 · 计算机科学 2025-03-21 Xinliang Frederick Zhang , Carter Blum , Temma Choji , Shalin Shah , Alakananda Vempala

This paper presents a question-answering approach to extract document-level event-argument structures. We automatically ask and answer questions for each argument type an event may have. Questions are generated using manually defined…

计算与语言 · 计算机科学 2024-04-26 Md Nayem Uddin , Enfa Rose George , Eduardo Blanco , Steven Corman

Speaker extraction seeks to extract the target speech in a multi-talker scenario given an auxiliary reference. Such reference can be auditory, i.e., a pre-recorded speech, visual, i.e., lip movements, or contextual, i.e., phonetic sequence.…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Junjie Li , Meng Ge , Zexu Pan , Longbiao Wang , Jianwu Dang

Capturing interactions among event arguments is an essential step towards robust event argument extraction (EAE). However, existing efforts in this direction suffer from two limitations: 1) The argument role type information of contextual…

计算与语言 · 计算机科学 2021-07-02 Xiangyu Xi , Wei Ye , Shikun Zhang , Quanxiu Wang , Huixing Jiang , Wei Wu

Extracting summaries from long documents can be regarded as sentence classification using the structural information of the documents. How to use such structural information to summarize a document is challenging. In this paper, we propose…

计算与语言 · 计算机科学 2023-01-23 Junyi Bian , Xiaodi Huang , Hong Zhou , Shanfeng Zhu

Sentence scoring and sentence selection are two main steps in extractive document summarization systems. However, previous works treat them as two separated subtasks. In this paper, we present a novel end-to-end neural network framework for…

计算与语言 · 计算机科学 2018-07-09 Qingyu Zhou , Nan Yang , Furu Wei , Shaohan Huang , Ming Zhou , Tiejun Zhao

Document-level Relation Extraction (DRE) aims to recognize the relations between two entities. The entity may correspond to multiple mentions that span beyond sentence boundary. Few previous studies have investigated the mention…

计算与语言 · 计算机科学 2022-01-14 Chao Zhao , Daojian Zeng , Lu Xu , Jianhua Dai

In this work, we model abstractive text summarization using Attentional Encoder-Decoder Recurrent Neural Networks, and show that they achieve state-of-the-art performance on two different corpora. We propose several novel models that…

计算与语言 · 计算机科学 2016-08-29 Ramesh Nallapati , Bowen Zhou , Cicero Nogueira dos santos , Caglar Gulcehre , Bing Xiang

Upon the advent of the emerging metaverse and its related applications in Augmented Reality (AR), the current bit-oriented network struggles to support real-time changes for the vast amount of associated information, creating a significant…

系统与控制 · 电气工程与系统科学 2024-08-02 Zhe Wang , Yansha Deng

This paper presents a survey of Abstract Meaning Representation (AMR), a semantic representation framework that captures the meaning of sentences through a graph-based structure. AMR represents sentences as rooted, directed acyclic graphs,…

计算与语言 · 计算机科学 2025-05-07 Behrooz Mansouri

Event extraction is of practical utility in natural language processing. In the real world, it is a common phenomenon that multiple events existing in the same sentence, where extracting them are more difficult than extracting a single…

计算与语言 · 计算机科学 2022-12-19 Xiao Liu , Zhunchen Luo , Heyan Huang

Event argument extraction (EAE) aims to identify the arguments of an event and classify the roles that those arguments play. Despite great efforts made in prior work, there remain many challenges: (1) Data scarcity. (2) Capturing the…

计算与语言 · 计算机科学 2020-10-08 Jie Ma , Shuai Wang , Rishita Anubhai , Miguel Ballesteros , Yaser Al-Onaizan

Named Entity Recognition (NER) is a fundamental problem in natural language processing (NLP). However, the task of extracting longer entity spans (e.g., awards) from extended texts (e.g., homepages) is barely explored. Current NER methods…

计算与语言 · 计算机科学 2025-02-12 Yelin Chen , Fanjin Zhang , Jie Tang

The sliding window approach provides an elegant way to handle contexts of sizes larger than the Transformer's input window, for tasks like language modeling. Here we extend this approach to the sequence-to-sequence task of document parsing.…

计算与语言 · 计算机科学 2023-05-30 Sadhana Kumaravel , Tahira Naseem , Ramon Fernandez Astudillo , Radu Florian , Salim Roukos