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Sound event detection (SED) methods typically rely on either strongly labelled data or weakly labelled data. As an alternative, sequentially labelled data (SLD) was proposed. In SLD, the events and the order of events in audio clips are…

声音 · 计算机科学 2019-04-30 Yuanbo Hou , Qiuqiang Kong , Shengchen Li , Mark D. Plumbley

Weakly-supervised audio-visual video parsing (WS-AVVP) aims to localize the temporal extents of audio, visual and audio-visual event instances as well as identify the corresponding event categories with only video-level category labels for…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Jie Fu , Junyu Gao , Changsheng Xu

Audio LLMs have shown a strong ability to understand audio samples, yet their reliability in complex acoustic scenes remains under-explored. Unlike prior work limited to small scale or less controlled query construction, we present a…

声音 · 计算机科学 2026-03-05 Taehan Lee , Jaehan Jung , Hyukjun Lee

Non-intrusive load monitoring (NILM), aims to infer the power profiles of appliances from the aggregated power signal via purely analytical methods. Existing NILM methods are susceptible to various issues such as the noise and transient…

系统与控制 · 电气工程与系统科学 2020-09-08 Elnaz Azizi , Mohammad TH Beheshti , Sadegh Bolouki

Abrupt change detection based on the wavelet transform and threshold method is very effective in detecting the abrupt changes and hence segmenting the signals recorded during disturbances in the electrical power network. The wavelet method…

其他计算机科学 · 计算机科学 2015-03-20 A. Ukil , R. Zivanovic

Variational Quantum Algorithms (VQAs) are a leading approach for near-term quantum computing but face major optimization challenges from noise, barren plateaus, and complex energy landscapes. We benchmarked more than fifty metaheuristic…

量子物理 · 物理学 2025-09-30 Vojtěch Novák , Ivan Zelinka , Václav Snášel

We extend the definition of a Stochastic Hybrid Automaton (SHA) to overcome limitations that make it difficult to use for on-line control. Since guard sets do not specify the exact event causing a transition, we introduce a clock structure…

最优化与控制 · 数学 2012-03-26 Ali Kebarighotbi , Christos G. Cassandras

Dynamic optimization problems (DOPs) are challenging due to their changing conditions. This requires algorithms to be highly adaptable and efficient in terms of finding rapidly new optimal solutions under changing conditions. Traditional…

神经与进化计算 · 计算机科学 2025-05-20 Federico Signorelli , Anil Yaman

We propose Selective Multiple Power Iterations (SMPI), a new algorithm to address the important Tensor PCA problem that consists in recovering a spike $\bf{v_0}^{\otimes k}$ corrupted by a Gaussian noise tensor $\bf{Z} \in…

机器学习 · 计算机科学 2021-12-24 Mohamed Ouerfelli , Mohamed Tamaazousti , Vincent Rivasseau

This paper studies the synchronization of stochastic linear systems which are subject to a general class of noises, in the sense that the noises are bounded in covariance but might be correlated with the states of agents and among each…

系统与控制 · 电气工程与系统科学 2022-05-16 Jiaqi Yan , Yilin Mo , Hideaki Ishii

Variance reduction techniques such as SPIDER/SARAH/STORM have been extensively studied to improve the convergence rates of stochastic non-convex optimization, which usually maintain and update a sequence of estimators for a single function…

机器学习 · 计算机科学 2023-01-02 Wei Jiang , Gang Li , Yibo Wang , Lijun Zhang , Tianbao Yang

Variational quantum algorithms (VQAs) offer a promising path toward using near-term quantum hardware for applications in academic and industrial research. These algorithms aim to find approximate solutions to quantum problems by optimizing…

This paper introduces pmuGE (phasor measurement unit Generator of Events), one of the first data-driven generative model for power system event data. We have trained this model on thousands of actual events and created a dataset denoted…

系统与控制 · 电气工程与系统科学 2022-10-26 Brandon Foggo , Koji Yamashita , Nanpeng Yu

Deep learning (DL) strategies have recently been utilized to diagnose motor faults by simply analyzing motor phase current signals, offering a less costly and non-intrusive alternative to vibration sensors. This research transforms these…

信号处理 · 电气工程与系统科学 2024-10-15 Eduardo Jr Piedad , Christian Ainsley Del Rosario , Eduardo Prieto-Araujo , Oriol Gomis-Bellmunt

The Transformer architecture, underpinned by the Multi-Head Attention (MHA) mechanism, has become the de facto standard for state-of-the-art models in artificial intelligence. However, the quadratic computational complexity of MHA with…

机器学习 · 计算机科学 2025-10-03 Adam Filipek

Multi-event detection and recognition in real time is of challenge for a modern grid as its feature is usually non-identifiable. Based on factor model, this paper porposes a data-driven method as an alternative solution under the framework…

应用统计 · 统计学 2017-12-27 Fan Yang , Xing He , Robert Caiming Qiu , Zenan Ling

We present the Multi-Agent Transformer World Model (MATWM), a novel transformer-based world model designed for multi-agent reinforcement learning in both vector- and image-based environments. MATWM combines a decentralized imagination…

机器学习 · 计算机科学 2025-06-24 Azad Deihim , Eduardo Alonso , Dimitra Apostolopoulou

In deep learning, stochastic gradient descent (SGD) and its momentum-based variants are widely used for optimization. However, the internal dynamics of these methods remain underexplored. In this paper, we analyze gradient behavior through…

机器学习 · 计算机科学 2025-03-11 Zhipeng Yao , Rui Yu , Guisong Chang , Ying Li , Yu Zhang , Dazhou Li

Quality analysis of weather forecasts is an essential topic in meteorology. Although traditional score-based evaluation metrics can quantify certain forecast errors, they are still far from meteorological experts in terms of descriptive…

人工智能 · 计算机科学 2025-08-19 Xuming He , Zhiyuan You , Junchao Gong , Couhua Liu , Xiaoyu Yue , Peiqin Zhuang , Wenlong Zhang , Lei Bai

Despite growing interest in incorporating feedback to improve language models, most efforts focus only on sequence-level annotations. In this work, we explore the potential of utilizing fine-grained span-level annotations from offline…

计算与语言 · 计算机科学 2024-10-23 Lily H. Zhang , Hamid Dadkhahi , Mara Finkelstein , Firas Trabelsi , Jiaming Luo , Markus Freitag