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Relation extraction is the task of determining the relation between two entities in a sentence. Distantly-supervised models are popular for this task. However, sentences can be long and two entities can be located far from each other in a…

Computation and Language · Computer Science 2019-12-10 Tapas Nayak , Hwee Tou Ng

In this work we deal with the problem of high-level event detection in video. Specifically, we study the challenging problems of i) learning to detect video events from solely a textual description of the event, without using any positive…

Machine Learning · Computer Science 2015-11-26 Christos Tzelepis , Damianos Galanopoulos , Vasileios Mezaris , Ioannis Patras

Event extraction (EE) is a crucial information extraction task that aims to extract event information in texts. Most existing methods assume that events appear in sentences without overlaps, which are not applicable to the complicated…

Computation and Language · Computer Science 2021-07-06 Jiawei Sheng , Shu Guo , Bowen Yu , Qian Li , Yiming Hei , Lihong Wang , Tingwen Liu , Hongbo Xu

Event extraction aims to recognize pre-defined event triggers and arguments from texts, which suffer from the lack of high-quality annotations. In most NLP applications, involving a large scale of synthetic training data is a practical and…

Computation and Language · Computer Science 2023-05-17 bo wang , Heyan Huang , Xiaochi Wei , Ge Shi , Xiao Liu , Chong Feng , Tong Zhou , Shuaiqiang Wang , Dawei Yin

The task in referring expression comprehension is to localise the object instance in an image described by a referring expression phrased in natural language. As a language-to-vision matching task, the key to this problem is to learn a…

Computer Vision and Pattern Recognition · Computer Science 2018-12-13 Peng Wang , Qi Wu , Jiewei Cao , Chunhua Shen , Lianli Gao , Anton van den Hengel

Attention mechanism plays a dominant role in the sequence generation models and has been used to improve the performance of machine translation and abstractive text summarization. Different from neural machine translation, in the task of…

Computation and Language · Computer Science 2020-04-09 Piji Li , Lidong Bing , Zhongyu Wei , Wai Lam

Object detection is a fundamental task in computer vision and image understanding, with the goal of identifying and localizing objects of interest within an image while assigning them corresponding class labels. Traditional methods, which…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Fnu Neha , Deepshikha Bhati , Deepak Kumar Shukla , Md Amiruzzaman

Event extraction (EE) is a crucial research task for promptly apprehending event information from massive textual data. With the rapid development of deep learning, EE based on deep learning technology has become a research hotspot.…

Computation and Language · Computer Science 2022-11-16 Qian Li , Jianxin Li , Jiawei Sheng , Shiyao Cui , Jia Wu , Yiming Hei , Hao Peng , Shu Guo , Lihong Wang , Amin Beheshti , Philip S. Yu

Event extraction involves the detection and extraction of both the event triggers and corresponding event arguments. Existing systems often decompose event extraction into multiple subtasks, without considering their possible interactions.…

Computation and Language · Computer Science 2022-10-18 Huiling You , David Samuel , Samia Touileb , Lilja Øvrelid

We simplify sentences with an attentive neural network sequence to sequence model, dubbed S4. The model includes a novel word-copy mechanism and loss function to exploit linguistic similarities between the original and simplified sentences.…

Computation and Language · Computer Science 2018-05-16 Alexander Mathews , Lexing Xie , Xuming He

Event cameras are novel sensors that output brightness changes in the form of a stream of asynchronous "events" instead of intensity frames. They offer significant advantages with respect to conventional cameras: high dynamic range (HDR),…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Daniel Gehrig , Mathias Gehrig , Javier Hidalgo-Carrió , Davide Scaramuzza

This paper presents a novel system E3 for extracting keyphrases from news content for the purpose of offering the news audience a broad overview of news events, with especially high content volume. Given an input query, E3 extracts…

Information Retrieval · Computer Science 2016-10-02 Nikita Jain , Swati Gupta , Dhaval Patel

In this work, we present the first general logic of attention. Attention is a powerful cognitive ability that allows agents to focus on potentially complex information, such as logically structured propositions, higher-order beliefs, or…

Artificial Intelligence · Computer Science 2025-05-21 Gaia Belardinelli , Thomas Bolander , Sebastian Watzl

With rapidly increasing deployment of surveillance cameras, the reliable methods for automatically analyzing the surveillance video and recognizing special events are demanded by different practical applications. This paper proposes a novel…

Computer Vision and Pattern Recognition · Computer Science 2018-10-29 Michael Ying Yang , Wentong Liao , Chun Yang , Yanpeng Cao , Bodo Rosenhahn

Contextual information plays a crucial role in speech recognition technologies and incorporating it into the end-to-end speech recognition models has drawn immense interest recently. However, previous deep bias methods lacked explicit…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-13 Kaixun Huang , Ao Zhang , Zhanheng Yang , Pengcheng Guo , Bingshen Mu , Tianyi Xu , Lei Xie

We present a novel attention-based mechanism to learn enhanced point features for point cloud processing tasks, e.g., classification and segmentation. Unlike prior works, which were trained to optimize the weights of a pre-selected set of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Liqiang Lin , Pengdi Huang , Chi-Wing Fu , Kai Xu , Hao Zhang , Hui Huang

Event detection (ED), which means identifying event trigger words and classifying event types, is the first and most fundamental step for extracting event knowledge from plain text. Most existing datasets exhibit the following issues that…

Computation and Language · Computer Science 2020-10-09 Xiaozhi Wang , Ziqi Wang , Xu Han , Wangyi Jiang , Rong Han , Zhiyuan Liu , Juanzi Li , Peng Li , Yankai Lin , Jie Zhou

Event-specific concepts are the semantic concepts designed for the events of interest, which can be used as a mid-level representation of complex events in videos. Existing methods only focus on defining event-specific concepts for a small…

Computer Vision and Pattern Recognition · Computer Science 2015-08-18 Guangnan Ye , Yitong Li , Hongliang Xu , Dong Liu , Shih-Fu Chang

We introduce a new entity typing task: given a sentence with an entity mention, the goal is to predict a set of free-form phrases (e.g. skyscraper, songwriter, or criminal) that describe appropriate types for the target entity. This…

Computation and Language · Computer Science 2018-07-16 Eunsol Choi , Omer Levy , Yejin Choi , Luke Zettlemoyer

The paper discusses the limitations of deep learning models in identifying and utilizing features that remain invariant under a bijective transformation on the data entries, which we refer to as combinatorial patterns. We argue that the…

Machine Learning · Computer Science 2023-03-30 Karen Sargsyan