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Multi-label classification is a type of supervised machine learning that can simultaneously assign multiple labels to an instance. To solve this task, some methods divide the original problem into several sub-problems (local approach),…

Machine Learning · Computer Science 2024-11-18 Elaine Cecília Gatto , Felipe Nakano Kenji , Jesse Read , Mauri Ferrandin , Ricardo Cerri , Celine Vens

To address the challenges of imbalanced multi-class datasets typically used for rare event detection in critical cyber-physical systems, we propose an optimal, efficient, and adaptable mixed integer programming (MIP) ensemble weighting…

Machine Learning · Computer Science 2025-04-16 Georgios Tertytchny , Georgios L. Stavrinides , Maria K. Michael

Sound event detection is a challenging task, especially for scenes with multiple simultaneous events. While event classification methods tend to be fairly accurate, event localization presents additional challenges, especially when large…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-12 Sandeep Kothinti , Keisuke Imoto , Debmalya Chakrabarty , Gregory Sell , Shinji Watanabe , Mounya Elhilali

Social media has become an important information source for crisis management and provides quick access to ongoing developments and critical information. However, classification models suffer from event-related biases and highly imbalanced…

Computation and Language · Computer Science 2022-11-22 Philipp Seeberger , Korbinian Riedhammer

Neural networks have recently been proposed for multi-label classification because they are able to capture and model label dependencies in the output layer. In this work, we investigate limitations of BP-MLL, a neural network (NN)…

Machine Learning · Computer Science 2020-12-09 Jinseok Nam , Jungi Kim , Eneldo Loza Mencía , Iryna Gurevych , Johannes Fürnkranz

Multi-label aspect category detection is intended to detect multiple aspect categories occurring in a given sentence. Since aspect category detection often suffers from limited datasets and data sparsity, the prototypical network with…

Computation and Language · Computer Science 2023-09-28 Zeyu Wang , Mizuho Iwaihara

Large language models (LLMs) are being increasingly tuned to power complex generation tasks such as writing, fact-seeking, querying and reasoning. Traditionally, human or model feedback for evaluating and further tuning LLM performance has…

Computation and Language · Computer Science 2024-04-09 Yukti Makhija , Priyanka Agrawal , Rishi Saket , Aravindan Raghuveer

We present a novel document-level model for finding argument spans that fill an event's roles, connecting related ideas in sentence-level semantic role labeling and coreference resolution. Because existing datasets for cross-sentence…

Computation and Language · Computer Science 2020-05-12 Seth Ebner , Patrick Xia , Ryan Culkin , Kyle Rawlins , Benjamin Van Durme

Sentence-level relation extraction mainly aims to classify the relation between two entities in a sentence. The sentence-level relation extraction corpus often contains data that are difficult for the model to infer or noise data. In this…

Computation and Language · Computer Science 2021-08-05 Seongsik Park , Harksoo Kim

Event detection in time series is a challenging task due to the prevalence of imbalanced datasets, rare events, and time interval-defined events. Traditional supervised deep learning methods primarily employ binary classification, where…

Machine Learning · Statistics 2024-09-16 Menouar Azib , Benjamin Renard , Philippe Garnier , Vincent Génot , Nicolas André

Multi-label few-shot aspect category detection aims at identifying multiple aspect categories from sentences with a limited number of training instances. The representation of sentences and categories is a key issue in this task. Most of…

Computation and Language · Computer Science 2024-07-31 ChaoFeng Guan , YaoHui Zhu , Yu Bai , LingYun Wang

Detecting emotions expressed in text has become critical to a range of fields. In this work, we investigate ways to exploit label correlations in multi-label emotion recognition models to improve emotion detection. First, we develop two…

Computation and Language · Computer Science 2023-03-14 Georgios Chochlakis , Gireesh Mahajan , Sabyasachee Baruah , Keith Burghardt , Kristina Lerman , Shrikanth Narayanan

Detecting which parts of a sentence contribute to that sentence's toxicity -- rather than providing a sentence-level verdict of hatefulness -- would increase the interpretability of models and allow human moderators to better understand the…

Computation and Language · Computer Science 2021-04-13 Alireza Salemi , Nazanin Sabri , Emad Kebriaei , Behnam Bahrak , Azadeh Shakery

Multi-label classification aims to classify instances with discrete non-exclusive labels. Most approaches on multi-label classification focus on effective adaptation or transformation of existing binary and multi-class learning approaches…

Machine Learning · Computer Science 2019-01-03 Piotr Szymański , Tomasz Kajdanowicz , Nitesh Chawla

Extracting event time from news articles is a challenging but attractive task. In contrast to the most existing pair-wised temporal link annotation, Reimers et al.(2016) proposed to annotate the time anchor (a.k.a. the exact time) of each…

Computation and Language · Computer Science 2020-08-17 Fei Cheng , Yusuke Miyao

Multi-label text classification involves extracting all relevant labels from a sentence. Given the unordered nature of these labels, we propose approaching the problem as a set prediction task. To address the correlation between labels, we…

Computation and Language · Computer Science 2024-03-15 Du Xinkai , Han Quanjie , Sun Yalin , Lv Chao , Sun Maosong

In recent years, biomedical event extraction has been dominated by complicated pipeline and joint methods, which need to be simplified. In addition, existing work has not effectively utilized trigger word information explicitly. Hence, we…

Computation and Language · Computer Science 2024-08-15 Gongchi Chen , Pengchao Wu , Jinghang Gu , Longhua Qian , Guodong Zhou

Multi-label aspect category detection allows a given review sentence to contain multiple aspect categories, which is shown to be more practical in sentiment analysis and attracting increasing attention. As annotating large amounts of data…

Computation and Language · Computer Science 2022-06-29 Han Liu , Feng Zhang , Xiaotong Zhang , Siyang Zhao , Junjie Sun , Hong Yu , Xianchao Zhang

Long-running, high-impact events such as the Boston Marathon bombing often develop through many stages and involve a large number of entities in their unfolding. Timeline summarization of an event by key sentences eases story digestion, but…

Information Retrieval · Computer Science 2017-02-12 Tuan Tran , Claudia Niederée , Nattiya Kanhabua , Ujwal Gadiraju , Avishek Anand

Class imbalance is an intrinsic characteristic of multi-label data. Most of the labels in multi-label data sets are associated with a small number of training examples, much smaller compared to the size of the data set. Class imbalance…

Machine Learning · Computer Science 2018-11-07 Bin Liu , Grigorios Tsoumakas