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Event detection (ED) aims at detecting event trigger words in sentences and classifying them into specific event types. In real-world applications, ED typically does not have sufficient labelled data, thus can be formulated as a few-shot…

Computation and Language · Computer Science 2021-06-01 Shirong Shen , Tongtong Wu , Guilin Qi , Yuan-Fang Li , Gholamreza Haffari , Sheng Bi

We study continual event extraction, which aims to extract incessantly emerging event information while avoiding forgetting. We observe that the semantic confusion on event types stems from the annotations of the same text being updated…

Computation and Language · Computer Science 2023-10-25 Zitao Wang , Xinyi Wang , Wei Hu

This paper demonstrates the potential of convolutional neural networks (CNN) for detecting and classifying prosodic events on words, specifically pitch accents and phrase boundary tones, from frame-based acoustic features. Typical…

Computation and Language · Computer Science 2017-06-05 Sabrina Stehwien , Ngoc Thang Vu

Event Detection, which aims to identify and classify mentions of event instances from unstructured articles, is an important task in Natural Language Processing (NLP). Existing techniques for event detection only use homogeneous one-hot…

Computation and Language · Computer Science 2022-11-03 Anran Hao , Siu Cheung Hui , Jian Su

In this paper, we propose a recent and under-researched paradigm for the task of event detection (ED) by casting it as a question-answering (QA) problem with the possibility of multiple answers and the support of entities. The extraction of…

Computation and Language · Computer Science 2021-04-15 Emanuela Boros , Jose G. Moreno , Antoine Doucet

Event Detection (ED) aims to identify event trigger words from a given text and classify it into an event type. Most of current methods to ED rely heavily on training instances, and almost ignore the correlation of event types. Hence, they…

Information Retrieval · Computer Science 2023-02-03 Shumin Deng , Ningyu Zhang , Luoqiu Li , Hui Chen , Huaixiao Tou , Mosha Chen , Fei Huang , Huajun Chen

Event mentions in text correspond to real-world events of varying degrees of granularity. The task of subevent detection aims to resolve this granularity issue, recognizing the membership of multi-granular events in event complexes. Since…

Computation and Language · Computer Science 2021-09-15 Haoyu Wang , Hongming Zhang , Muhao Chen , Dan Roth

Nowadays, Twitter has become a great source of user-generated information about events. Very often people report causal relationships between events in their tweets. Automatic detection of causality information in these events might play an…

Information Retrieval · Computer Science 2019-01-14 Humayun Kayesh , Md. Saiful Islam , Junhu Wang

Traditional event detection methods heavily rely on manually engineered rich features. Recent deep learning approaches alleviate this problem by automatic feature engineering. But such efforts, like tradition methods, have so far only…

Computation and Language · Computer Science 2019-05-21 Reza Ghaeini , Xiaoli Z. Fern , Liang Huang , Prasad Tadepalli

The traditional way of sentence-level event detection involves two important subtasks: trigger identification and trigger classifications, where the identified event trigger words are used to classify event types from sentences. However,…

Computation and Language · Computer Science 2023-06-27 Tongtao Ling , Lei Chen , Huangxu Sheng , Zicheng Cai , Hai-Lin Liu

Event extraction (EE), which acquires structural event knowledge from texts, can be divided into two sub-tasks: event type classification and element extraction (namely identifying triggers and arguments under different role patterns). As…

Computation and Language · Computer Science 2022-08-19 Qian Li , Shu Guo , Jia Wu , Jianxin Li , Jiawei Sheng , Lihong Wang , Xiaohan Dong , Hao Peng

Detecting events and classifying them into predefined types is an important step in knowledge extraction from natural language texts. While the neural network models have generally led the state-of-the-art, the differences in performance…

Computation and Language · Computer Science 2018-08-28 J. Walker Orr , Prasad Tadepalli , Xiaoli Fern

We propose a novel framework for modeling event-related potentials (ERPs) collected during reading that couples pre-trained convolutional decoders with a language model. Using this framework, we compare the abilities of a variety of…

Computation and Language · Computer Science 2019-04-03 Shaorong Yan , Aaron Steven White

We propose to leverage concept-level representations for complex event recognition in photographs given limited training examples. We introduce a novel framework to discover event concept attributes from the web and use that to extract…

Computer Vision and Pattern Recognition · Computer Science 2017-01-18 Unaiza Ahsan , Chen Sun , James Hays , Irfan Essa

Lifelong event detection aims to incrementally update a model with new event types and data while retaining the capability on previously learned old types. One critical challenge is that the model would catastrophically forget old types…

Computation and Language · Computer Science 2022-09-19 Minqian Liu , Shiyu Chang , Lifu Huang

Event detection tasks can enable the quick detection of events from texts and provide powerful support for downstream natural language processing tasks. Most such methods can only detect a fixed set of predefined event classes. To extend…

Computation and Language · Computer Science 2023-05-05 Hao Wang , Hanwen Shi , Jianyong Duan

Event extraction is typically modeled as a multi-class classification problem where event types and argument roles are treated as atomic symbols. These approaches are usually limited to a set of pre-defined types. We propose a novel event…

Computation and Language · Computer Science 2022-03-23 Sijia Wang , Mo Yu , Shiyu Chang , Lichao Sun , Lifu Huang

Event classification can add valuable information for semantic search and the increasingly important topic of fact validation in news. So far, only few approaches address image classification for newsworthy event types such as natural…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 Eric Müller-Budack , Matthias Springstein , Sherzod Hakimov , Kevin Mrutzek , Ralph Ewerth

We present a new machine learning and text information extraction approach to detection of cyber threat events in Twitter that are novel (previously non-extant) and developing (marked by significance with respect to similarity with a…

Information Retrieval · Computer Science 2019-07-19 Avishek Bose , Vahid Behzadan , Carlos Aguirre , William H. Hsu

Current object detectors excel at entity localization and classification, yet exhibit inherent limitations in event recognition capabilities. This deficiency arises from their architecture's emphasis on discrete object identification rather…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Yuhui Zeng , Haoxiang Wu , Wenjie Nie , Xiawu Zheng , Guangyao Chen , Yunhang Shen , Jun Peng , Yonghong Tian , Rongrong Ji
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