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In this paper, a combinative approach using Nonnegative Matrix Factorization (NMF) and Convolutional Neural Network (CNN) is proposed for audio clip Sound Event Detection (SED). The main idea begins with the use of NMF to approximate strong…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-22 Chan Teck Kai , Chin Cheng Siong , Li Ye

In this technique report, we present a bunch of methods for the task 4 of Detection and Classification of Acoustic Scenes and Events 2017 (DCASE2017) challenge. This task evaluates systems for the large-scale detection of sound events using…

Sound · Computer Science 2017-11-28 Yong Xu , Qiuqiang Kong , Wenwu Wang , Mark D. Plumbley

Process mining is a research field focused on the analysis of event data with the aim of extracting insights related to dynamic behavior. Applying process mining techniques on data from smart home environments has the potential to provide…

Machine Learning · Computer Science 2017-11-01 Niek Tax , Emin Alasgarov , Natalia Sidorova , Wil M. P. van der Aalst , Reinder Haakma

Clustering single-cell RNA sequence (scRNA-seq) data poses statistical and computational challenges due to their high-dimensionality and data-sparsity, also known as `dropout' events. Recently, Regularized Auto-Encoder (RAE) based deep…

Machine Learning · Computer Science 2021-07-19 Arnab Kumar Mondal , Himanshu Asnani , Parag Singla , Prathosh AP

Event-based semantic segmentation has gained popularity due to its capability to deal with scenarios under high-speed motion and extreme lighting conditions, which cannot be addressed by conventional RGB cameras. Since it is hard to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Linglin Jing , Yiming Ding , Yunpeng Gao , Zhigang Wang , Xu Yan , Dong Wang , Gerald Schaefer , Hui Fang , Bin Zhao , Xuelong Li

Dense audio-visual event localization (DAVE) aims to identify event categories and locate the temporal boundaries in untrimmed videos. Most studies only employ event-related semantic constraints on the final outputs, lacking cross-modal…

Multimedia · Computer Science 2025-10-16 Huilai Li , Yonghao Dang , Ying Xing , Yiming Wang , Jianqin Yin

Most state-of-the-art models for named entity recognition (NER) rely on the availability of large amounts of labeled data, making them challenging to extend to new, lower-resourced languages. However, there are now several proposed…

Computation and Language · Computer Science 2019-08-27 Aditi Chaudhary , Jiateng Xie , Zaid Sheikh , Graham Neubig , Jaime G. Carbonell

This paper presents our work of training acoustic event detection (AED) models using unlabeled dataset. Recent acoustic event detectors are based on large-scale neural networks, which are typically trained with huge amounts of labeled data.…

Audio and Speech Processing · Electrical Eng. & Systems 2019-05-01 Bowen Shi , Ming Sun , Chieh-Chi Kao , Viktor Rozgic , Spyros Matsoukas , Chao Wang

In this paper, we present a gated convolutional recurrent neural network based approach to solve task 4, large-scale weakly labelled semi-supervised sound event detection in domestic environments, of the DCASE 2018 challenge. Gated linear…

Sound · Computer Science 2018-10-17 Robert Harb , Franz Pernkopf

The goal of dialogue relation extraction (DRE) is to identify the relation between two entities in a given dialogue. During conversations, speakers may expose their relations to certain entities by explicit or implicit clues, such evidences…

Computation and Language · Computer Science 2022-07-26 Po-Wei Lin , Shang-Yu Su , Yun-Nung Chen

Zero-shot named entity recognition (NER) is the task of detecting named entities of specific types (such as 'Person' or 'Medicine') without any training examples. Current research increasingly relies on large synthetic datasets,…

Computation and Language · Computer Science 2025-03-10 Jonas Golde , Patrick Haller , Max Ploner , Fabio Barth , Nicolaas Jedema , Alan Akbik

The event streams generated by dynamic vision sensors (DVS) are sparse and non-uniform in the spatial domain, while still dense and redundant in the temporal domain. Although spiking neural network (SNN), the event-driven neuromorphic…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Yuan Zhang , Jian Cao , Ling Zhang , Jue Chen , Wenyu Sun , Yuan Wang

Annotated datasets are critical for training neural networks for object detection, yet their manual creation is time- and labour-intensive, subjective to human error, and often limited in diversity. This challenge is particularly pronounced…

Document-level relation extraction (DocRE) aims to extract semantic relations among entity pairs in a document. Typical DocRE methods blindly take the full document as input, while a subset of the sentences in the document, noted as the…

Computation and Language · Computer Science 2022-03-08 Yiqing Xie , Jiaming Shen , Sha Li , Yuning Mao , Jiawei Han

We address the problem of detecting speech directed to a device that does not contain a specific wake-word. Specifically, we focus on audio coming from a touch-based invocation. Mitigating virtual assistants (VAs) activation due to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-31 Vineet Garg , Ognjen Rudovic , Pranay Dighe , Ahmed H. Abdelaziz , Erik Marchi , Saurabh Adya , Chandra Dhir , Ahmed Tewfik

Keyphrase identification and classification is a Natural Language Processing and Information Retrieval task that involves extracting relevant groups of words from a given text related to the main topic. In this work, we focus on extracting…

Scarcity of labeled data, especially for rare events, hinders training effective machine learning models. This paper proposes SYNAPSE-G (Synthetic Augmentation for Positive Sampling via Expansion on Graphs), a novel pipeline leveraging…

Self-supervised learning (SSL) in the pretraining stage using un-annotated speech data has been successful in low-resource automatic speech recognition (ASR) tasks. However, models trained through SSL are biased to the pretraining data…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-17 Ruchao Fan , Abeer Alwan

When the task of locating manipulation regions in partially-fake audio (PFA) involves cross-domain datasets, the performance of deep learning models drops significantly due to the shift between the source and target domains. To address this…

Sound · Computer Science 2024-07-12 Siding Zeng , Jiangyan Yi , Jianhua Tao , Yujie Chen , Shan Liang , Yong Ren , Xiaohui Zhang

In open-world scenarios, where both novel classes and domains may exist, an ideal segmentation model should detect anomaly classes for safety and generalize to new domains. However, existing methods often struggle to distinguish between…

Computer Vision and Pattern Recognition · Computer Science 2024-11-07 Zhitong Gao , Bingnan Li , Mathieu Salzmann , Xuming He