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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

The task of event extraction has long been investigated in a supervised learning paradigm, which is bound by the number and the quality of the training instances. Existing training data must be manually generated through a combination of…

Computation and Language · Computer Science 2017-12-12 Ying Zeng , Yansong Feng , Rong Ma , Zheng Wang , Rui Yan , Chongde Shi , Dongyan Zhao

With emerging online topics as a source for numerous new events, detecting unseen / rare event types presents an elusive challenge for existing event detection methods, where only limited data access is provided for training. To address the…

Computation and Language · Computer Science 2023-05-30 Zhenrui Yue , Huimin Zeng , Mengfei Lan , Heng Ji , Dong Wang

Modern scene text recognition systems often depend on large end-to-end architectures that require extensive training and are prohibitively expensive for real-time scenarios. In such cases, the deployment of heavy models becomes impractical…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Ritabrata Chakraborty , Shivakumara Palaiahnakote , Umapada Pal , Cheng-Lin Liu

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

Event detection refers to identifying event occurrences in a text and comprises of two subtasks; event identification and classification. We present EDM3, a novel approach for Event Detection that formulates three generative tasks:…

Computation and Language · Computer Science 2023-05-29 Ujjwala Anantheswaran , Himanshu Gupta , Mihir Parmar , Kuntal Kumar Pal , Chitta Baral

Event Extraction bridges the gap between text and event signals. Based on the assumption of trigger-argument dependency, existing approaches have achieved state-of-the-art performance with expert-designed templates or complicated decoding…

Computation and Language · Computer Science 2022-02-16 Jinghui Si , Xutan Peng , Chen Li , Haotian Xu , Jianxin Li

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

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

Fully understanding narratives often requires identifying events in the context of whole documents and modeling the event relations. However, document-level event extraction is a challenging task as it requires the extraction of event and…

Computation and Language · Computer Science 2021-05-11 Kung-Hsiang Huang , Nanyun Peng

Neural network based models commonly regard event detection as a word-wise classification task, which suffer from the mismatch problem between words and event triggers, especially in languages without natural word delimiters such as…

Computation and Language · Computer Science 2018-05-02 Hongyu Lin , Yaojie Lu , Xianpei Han , Le Sun

We propose and compare various sentence selection strategies for active learning for the task of detecting mentions of entities. The best strategy employs the sum of confidences of two statistical classifiers trained on different views of…

Computation and Language · Computer Science 2009-11-11 Nitin Madnani , Hongyan Jing , Nanda Kambhatla , Salim Roukos

People post information about different topics which are in their active vocabulary over social media platforms (like Twitter, Facebook, PInterest and Google+). They follow each other and it is more likely that the person who posts…

Social and Information Networks · Computer Science 2022-08-30 Muskan Garg

Event-based state estimation can achieve estimation quality comparable to traditional time-triggered methods, but with a significantly lower number of samples. In networked estimation problems, this reduction in sampling instants does,…

Systems and Control · Computer Science 2016-09-27 Sebastian Trimpe

Most existing approaches to disfluency detection heavily rely on human-annotated data, which is expensive to obtain in practice. To tackle the training data bottleneck, we investigate methods for combining multiple self-supervised…

Computation and Language · Computer Science 2020-04-10 Shaolei Wang , Wanxiang Che , Qi Liu , Pengda Qin , Ting Liu , William Yang Wang

Event extraction requires high-quality expert human annotations, which are usually expensive. Therefore, learning a data-efficient event extraction model that can be trained with only a few labeled examples has become a crucial challenge.…

Computation and Language · Computer Science 2022-05-05 I-Hung Hsu , Kuan-Hao Huang , Elizabeth Boschee , Scott Miller , Prem Natarajan , Kai-Wei Chang , Nanyun Peng

We propose the task of narrative incoherence detection as a new arena for inter-sentential semantic understanding: Given a multi-sentence narrative, decide whether there exist any semantic discrepancies in the narrative flow. Specifically,…

Computation and Language · Computer Science 2021-04-16 Deng Cai , Yizhe Zhang , Yichen Huang , Wai Lam , Bill Dolan

In this paper, we focus on automatically detecting events in unconstrained videos without the use of any visual training exemplars. In principle, zero-shot learning makes it possible to train an event detection model based on the assumption…

Computer Vision and Pattern Recognition · Computer Science 2016-01-15 Xiaojun Chang , Yi Yang , Guodong Long , Chengqi Zhang , Alexander G. Hauptmann

The task of event detection involves identifying and categorizing event triggers. Contextual information has been shown effective on the task. However, existing methods which utilize contextual information only process the context once. We…

Computation and Language · Computer Science 2018-10-09 Shaobo Liu , Rui Cheng , Xiaoming Yu , Xueqi Cheng

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