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2025 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2025

作者： Borsdorf, Marvin Pan, Zexu Himmelmann, Pascal Li, Haizhou Schultz, Tanja Machine Listening Lab University of Bremen Bremen Germany Alibaba Group Singapore Department of Mathematics and Computer Science FernUniversität in Hagen Hagen Germany School of Data Science Shenzhen Research Institute of Big Data The Chinese University of Hong Kong Shenzhen China Department of Electrical and Computer Engineering National University of Singapore Singapore Cognitive Systems Lab University of Bremen Bremen Germany

ISBN: (纸本)9798350368741

Speech separation aims to equip machines with the human ability of selective listening, i.e. to focus attention on specific information in spoken communication. Studies have shown that the language spoken in a cocktail party scenario matters. While the development of speech separation models can leverage extensive databases, for the majority of languages only very limited data is available. This work presents the very first study on speech separation for low-resource languages. We choose blind source separation as the task to be studied and analyze three strategies to overcome the data scarcity of two low-resource languages from the GlobalPhoneMS2 database. We show that data from other languages can be used to develop models that work for low-resource languages. Finetuning additionally boosts the performance, and training on multiple languages increases both performance and robustness. We show that dynamic mixing in the development helps to find a trade-off between performance and development time. © 2025 IEEE.

关键词： cocktail party problem GlobalPhone low-resource language multilingual speech separation

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Correction: Viscoelasticity of Maxwell fluid in a permeable porous channel

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Discover Mechanical engineering 2025年第1期4卷 1-2页

作者： Sudarmozhi, K. Iranian, D. Alqahtani, Sultan Khan, Ilyas Niazai, Shafiullah Department of Mathematics Saveetha School of Engineering SIMATS Chennai India College of Engineering Mechanical Engineering Department King Khalid University Abha Saudi Arabia Department of Mathematics College of Science Al-Zulf Majmaah University Al-Majmaah Saudi Arabia Hourani Center for Applied Scientifc Research Al-Ahliyya Amman University Amman Jordan Department of Mathematics Education Faculty Laghman University Mehtarlam City Afghanistan

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Fuzzy multi-objective optimization model to design a sustainable closed-loop manufacturing system

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PeerJ computer Science 2025年 11卷 e2591-e2591页

作者： Kousar, Sajida Alvi, Asma Kausar, Nasreen Garg, Harish Kadry, Seifedine Kim, Jungeun Department of Mathematics and Statistics International Islamic University Islamabad Pakistan Department of Mathematics Faculty of Arts and Sciences Yildiz Technical University Istanbul Turkey Punjab Patiala India Department of Computer Science and Mathematics Lebanese American University Beirut Lebanon MEU Research Unit Middle East University Amman Jordan Department of Computer Engineering Inha University Incheon Korea Republic of

Republicans and Democrats practically everywhere have been demonstrating concerns about environmental conservation to achieve sustainable development goals (SDGs) since the turn of the century. To promote fuel (energy) savings and a reduction in the amount of carbon dioxide CO2 emissions in several enterprises, actions have been taken based on the concepts described. This study proposes an environmentally friendly manufacturing system designed to minimize environmental impacts. Specifically, it aims to develop a sustainable manufacturing process that accounts for energy consumption and CO2 emissions from direct and indirect energy sources. A multi-objective mathematical model has been formulated, incorporating financial and environmental constraints, to minimize overall costs, energy consumption, and CO2 emissions within the manufacturing framework. The input model parameters for real-world situations are generally unpredictable, so a fuzzy multi-objective model will be developed as a way to handle it. The validity of the proposed ecological industrial design will be tested using a scenario-based approach. Results demonstrate the high reliability, applicability, and effectiveness of the proposed network when analyzed using the developed techniques. Copyright 2025 Kousar et al. Distributed under Creative Commons CC-BY 4.0

关键词： Smart manufacturing

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What Is So Deep About Deepfakes? A Multi-Disciplinary Thematic Analysis of Academic Narratives About Deepfake Technology

IEEE Transactions on Technology and Society

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IEEE Transactions on Technology and Society 2025年第1期6卷 64-79页

作者： Twomey, John Ching, Didier Aylett, Matthew Peter Quayle, Michael Linehan, Conor Murphy, Gillian University College Cork School of Applied Psychology CorkT12 CY82 Ireland Lero—The Science Foundation Ireland Research Centre for Software LimerickV94 NYD3 Ireland Heriot Watt University Mathematics and Computer Science Department EdinburghEH14 4AS United Kingdom CereProc Ltd. EdinburghEH3 9DR United Kingdom University of Limerick Centre for Social Issues Research Department of Psychology LimerickV94 T9PX Ireland University of KwaZulu-Natal School of Applied Human Sciences Department of Psychology Pietermaritzburg3201 South Africa

Deepfakes are a form of synthetic media that uses deep-learning technology to create fake images, video, and audio. The emergence of this technology has inspired much commentary and speculation from academics across a range of disciplines, who have contributed expert opinions regarding the implications of deepfake proliferation on fields such as law, politics, and entertainment. A systematic scoping review was carried out to identify, assemble, and critically analyze those academic narratives. The aim is to build on and critique previous attempts at defining the technology and categorizing the harms and benefits of deepfake technology. A range of databases were searched for relevant articles from 2017 to 2023, resulting in a large multi-disciplinary dataset of 102 papers, 181,659 words long, which were analyzed qualitatively through thematic analysis. Implications for future research include questioning the lack of research evidence for the supposed positives of deepfakes, recognizing the role that identity plays in deepfake technology, challenging the perceived accessibility/ believability of deepfakes, and proposing a more nuanced approach to the dichotomous "positive and negatives" of deepfakes. Furthermore, we show how definitional issues around what a deepfake is versus other forms of fake media feeds confusion around the novelty and impacts of deepfakes. © 2024 The Authors.

关键词： Deepfakes Reviews Generative AI Software Psychology Social networking (online) Organizations Lenses Law Internet

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On comparison lemmas and criteria for KL practical stability and input-to-state practical stability: the discrete-time case

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Automatica 2025年 178卷

作者： Pepe, Pierdomenico Department of Information Engineering Computer Science and Mathematics Center of Excellence for Research DEWS University of L'Aquila via Vetoio Coppito 1 L'Aquila67100 Italy

In this paper novel discrete-time Halanay's inequalities are provided for the global uniform convergence to a target ball of the origin. The case with a forcing term is also studied. In this case uniform convergence is achieved towards a target ball of the origin whose radius is given by the sum of two terms: (1) a class K function of the amplitude of the forcing term;(2) a suitable constant. Induced novel criteria for global uniform ultimate boundedness and input-to-state practical stability are also provided, for a general class of nonlinear discrete-time switching systems with time delays, with possible constraints in both switching and time-delay signals. © 2025 Elsevier Ltd

关键词： Time delay

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HetEC: Architectures for Heterogeneous Quantum Error Correction Codes 25

HetEC: Architectures for Heterogeneous Quantum Error Correct...

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30th ACM International Conference on Architectural Support for Programming Languages and Operating Systems, ASPLOS 2025

作者： Stein, Samuel Xu, Shifan Cross, Andrew W. Yoder, Theodore J. Javadi-Abhari, Ali Liu, Chenxu Liu, Kun Zhou, Zeyuan Guinn, Charlie Ding, Yufei Ding, Yongshan Li, Ang Future Computing Technologies Pacific Northwest National Laboratory RichlandWA United States Departments of Applied Physics Yale Quantum Institute Yale University New HavenCT United States Ibm Quantum Ibm T.J Watson Research Center Yorktown HeightsNY United States Department of Physics Princeton University PrincetonNJ United States Department of Computer Science and Engineering University of California San Diego San DiegoCA United States Departments of Applied Physics Yale Quantum Institute Department of Computer Science Yale University New HavenCT United States Department of Electrical and Computer Engineering University of Washington SeattleWA United States

ISBN: (纸本)9798400710797

Quantum Error Correction (QEC) is essential for future quantum computers due to its ability to exponentially suppress physical errors. The surface code is a leading error-correcting code candidate because of its local topological structure, experimentally achievable thresholds, and support for universal gate operations with magic states. However, its physical overhead scales quadratically with number of correctable errors. Conversely, quantum low-density parity-check (qLDPC) codes offer superior scaling but lack, on their own, a clear path to universal logical computation. Therefore, it is becoming increasingly evident that there are significant advantages to designing architectures using multiple codes. Heterogeneous architectures provide a clear path to universal logical computation as well as the ability to access different resource trade offs. To address this, we propose integrating the surface code and gross code using an ancilla bus for inter-code data movement. This approach involves managing trade-offs, including qubit overhead, a constrained instruction set, and gross code (memory) routing and management. While our focus is on the gross-surface code architecture, our method is adaptable to any code combination and the constraints generated by that specific architecture. Motivated by the potential reduction of physical qubit overhead, an important feature in the realization of fault-tolerant computation, we perform the first full system study of heterogeneous error-correcting codes, discovering architectural trade-offs and optimizing around them. We demonstrate physical qubit reductions of up to 6.42x when executing an algorithm to a logical error rate, at the cost of up to a 3.43x increase in algorithm time. © 2025 ACM.

关键词： Qubits

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On the integration of reinforcement learning and simulated annealing for the parallel batch scheduling problem with setups

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European Journal of Operational research 2025年

作者： Rolim, Gustavo Alencar Tomazella, Caio Paziani Nagano, Marcelo Seido Department of Production Engineering Sao Carlos School of Engineering University of Sao Paulo Sao Carlos Brazil Department of Applied Mathematics and Statistics Institute of Mathematical and Computer Sciences University of Sao Paulo Sao Carlos Brazil Department of Production Engineering Federal University of Sao Carlos Sao Carlos Brazil

Motivated by semiconductor applications, where wafer lots are grouped into families and processed on batch machines, this paper addresses a generalized unrelated parallel-batch scheduling problem. The goal is to minimize total completion time (flow time) while considering family- and machine-dependent setup times. We propose a mixed-integer programming formulation, establish a necessary condition for optimal schedules, and develop a polynomial-time heuristic for batching and sequencing. We also evaluate Q-Learning, a model-free reinforcement learning algorithm, for neighborhood selection within two Simulated Annealing-based metaheuristics: Stochastic Local Search (SLS) and Adaptive Large Neighborhood Search (ALNS). Results show that SLS and ALNS achieve better solutions and faster convergence compared to existing approaches. Finally, we conclude that while Q-Learning has the potential to improve solution quality in certain cases, it also increases the complexity of the algorithms, making them harder to configure and scale. © 2025 Elsevier B.V.

关键词： Simulated annealing

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Synergetic effects of multiple junction and surface hydroxyl in Cu/CuO/Cu2O/TiO2 heterostructures towards highly efficient photocatalysts for hydrogen generation

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Materials Science for Energy Technologies 2025年 8卷 131-142页

作者： Subagyo, Riki Anindika, Garcelina Rizky Aufkani, Afif Akmal Zhang, Lei Ardhyananta, Hosta Burhan, R.Y. Perry Nugraheni, Zjahra Vianita Akhlus, Syafsir Bahruji, Hasliza Prasetyoko, Didik Wellia, Diana Vanda Ivansyah, Atthar Luqman Arramel Kusumawati, Yuly Department of Chemistry Faculty of Science and Analytic Data Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia Center of Excellence Applied Physics and Chemistry Nano Center Indonesia Jl PUSPIPTEK South Tangerang Banten15314 Indonesia Department of Physics National University of Singapore Singapore117551 Singapore Department of Materials and Metallurgical Engineering Faculty of Industrial Technology and Systems Engineering Institut Teknologi Sepuluh Nopember Surabaya60111 Indonesia Centre of Advanced Material and Energy Science Universiti Brunei Darussalam Jalan Tungku Link BE 1410 Brunei Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Andalas Padang25163 Indonesia Master Program in Computational Science Faculty of Mathematics and Natural Science Institut Teknologi Bandung Jalan Ganesha No. 10 Bandung40132 Indonesia Instrumentation and Computational Physics Research Group Department of Physics Faculty of Mathematics and Natural Sciences Institut Teknologi Bandung Jalan Ganesha No.10 West Java Bandung40132 Indonesia

The implementation of titanium dioxide (TiO2) as a photocatalyst material in hydrogen (H2) evolution reaction (HER) has embarked renewed interest in the past decade. Rapid electron-hole pairs recombination and wide band gap of a photo-sensitive material of TiO2 are detrimental toward the targeted catalytical reaction. In this study, we present the rational design, fabrication, photocatalytic performance of TiO2-Cu/CuO/Cu2O heterostructures (CuTi) using viable chemical reduction method. The Z-scheme and S-scheme are succesfully generated across the TiO2/CuO/Cu2O interfaces, while the Schottky junction arises on the Cu perimeters. This is evidenced from the blue shifted about 0.3 eV of Cu 2p core level determined by using X-ray photoemission spectroscopy (XPS), in combination with the formation of inverse V-shape of the Mott-Schottky plots. In addition, we find that Cu/CuO/Cu2O facilitates photon absorption range up to the visible region. The multiple heterojunction and the large number of OHsurface enhanced charge carrier transfer are associated to the suppression of photoluminescence (PL) intensity, high surface hydroxyl (OHsurface) density in CuTi probed by XPS, and fast electron transfer based on the electrochemical measurements. The presence of OHsurface inhibits the recombination of electron. A significant H2 photogeneration rate enhancement is achieved when an optimized 5 wt% Cu/CuO/Cu2O concentration is used on TiO2 to achieve 7,157.19 μmol·g−1 (1,789.30 μmol·g−1·h−1). Based on this finding, zero emission energy innitiative could be materialized under multiple heterojunctions in photocatalytic process is beneficial for enhancing the H2 production. © 2025 The Authors

关键词： Titanium dioxide

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Blind Equalization Using a Variational Autoencoder With Second Order Volterra Channel Model

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IEEE Transactions on Cognitive Communications and Networking 2025年

作者： Nielsen, Søren Føns Zibar, Darko Schmidt, Mikkel N. Technical University of Denmark Department of Applied Mathematics and Computer Science United Kingdom Technical University of Denmark Department of Electrical and Photonics Engineering United Kingdom

Existing communication hardware is being exerted to its limits to accommodate for the ever increasing internet usage globally. This leads to non-linear distortion in the communication link that requires non-linear equalization techniques to operate the link at a reasonable bit error rate. This paper addresses the challenge of blind non-linear equalization using a variational autoencoder (VAE) with a second-order Volterra channel model. The VAE framework’s costfunction, the evidence lower bound (ELBO), is derived for real-valued constellations and can be evaluated analytically without resorting to sampling techniques. We demonstrate the effectiveness of our approach through simulations on a synthetic Wiener-Hammerstein channel and a simulated intensity modulated direct detection (IM/DD) optical link. The results show significant improvements in equalization performance, compared to a VAE with linear channel assumptions, highlighting the importance of appropriate channel modeling in unsupervised VAE equalizer frameworks. © 2015 IEEE.

关键词： Blind equalization

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Space division and theory of graph-coloration-based protocol for multi-channel multi-transceiver operation in Internet of Vehicles

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EURASIP Journal on Wireless Communications and Networking 2025年第1期2025卷 1-26页

作者： Khamer, Lazhar Zaidi, Sofiane Calafate, Carlos T. Department of Mathematics and Computer Science Research Laboratory on Computer Science’s Complex Systems (RELA(CS)2 University of Oum El Bouaghi Oum El Bouaghi Algeria Department of Computer Science University of Souk Ahras Souk Ahras Algeria Department of Computer Engineering (DISCA) Universitat Politècnica de València Valencia Spain

Data exchange in the Internet of Vehicles (IoV) is challenging due to high interference, hidden terminal problems, and frequent transmission collisions. To overcome these issues and enhance overall network performance, we propose a Space Division and theory of Graph Coloration-based protocol for Multi-Channel Multi-Transceiver operation of the MAC layer (SDGC-MCMT) in the IoV. The protocol dynamically assigns service channels to vehicles based on their positions and schedules the transmission of packets across multiple transceivers to enhance efficiency and enable synchronous communication. Furthermore, it uses an adaptive channel busyness-based scheme when the number of available transceivers is lower than the number of service channels to improve data delivery. Simulation experiments, targeting packet delivery ratio, multi-hop channel access latency, and collision probability reveal the effectiveness of SDGC-MCMT in improving network performance compared to the IEEE 1609.4 protocol.

关键词： Internet of Vehicles Multi-channel MAC operation Multi-transceiver Graph coloration theory

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